configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 quote_sh() {
  93     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  94 }
  95
  96 print_error() {
  97     (echo
  98     echo "ERROR: $1"
  99     while test -n "$2"; do
 100         echo "       $2"
 101         shift
 102     done
 103     echo) >&2
 104 }
 105
 106 error_exit() {
 107     print_error "$@"
 108     exit 1
 109 }
 110
 111 do_compiler() {
 112     # Run the compiler, capturing its output to the log. First argument
 113     # is compiler binary to execute.
 114     compiler="$1"
 115     shift
 116     if test -n "$BASH_VERSION"; then eval '
 117         echo >>config.log "
 118 funcs: ${FUNCNAME[*]}
 119 lines: ${BASH_LINENO[*]}"
 120     '; fi
 121     echo $compiler "$@" >> config.log
 122     $compiler "$@" >> config.log 2>&1 || return $?
 123     # Test passed. If this is an --enable-werror build, rerun
 124     # the test with -Werror and bail out if it fails. This
 125     # makes warning-generating-errors in configure test code
 126     # obvious to developers.
 127     if test "$werror" != "yes"; then
 128         return 0
 129     fi
 130     # Don't bother rerunning the compile if we were already using -Werror
 131     case "$*" in
 132         *-Werror*)
 133            return 0
 134         ;;
 135     esac
 136     echo $compiler -Werror "$@" >> config.log
 137     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 138     error_exit "configure test passed without -Werror but failed with -Werror." \
 139         "This is probably a bug in the configure script. The failing command" \
 140         "will be at the bottom of config.log." \
 141         "You can run configure with --disable-werror to bypass this check."
 142 }
 143
 144 do_cc() {
 145     do_compiler "$cc" "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" "$@"
 150 }
 151
 152 # Append $2 to the variable named $1, with space separation
 153 add_to() {
 154     eval $1=\${$1:+\"\$$1 \"}\$2
 155 }
 156
 157 update_cxxflags() {
 158     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 159     # options which some versions of GCC's C++ compiler complain about
 160     # because they only make sense for C programs.
 161     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 162     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 163     for arg in $QEMU_CFLAGS; do
 164         case $arg in
 165             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 166             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 167                 ;;
 168             *)
 169                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 170                 ;;
 171         esac
 172     done
 173 }
 174
 175 compile_object() {
 176   local_cflags="$1"
 177   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 178 }
 179
 180 compile_prog() {
 181   local_cflags="$1"
 182   local_ldflags="$2"
 183   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 184       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 185 }
 186
 187 # symbolically link $1 to $2.  Portable version of "ln -sf".
 188 symlink() {
 189   rm -rf "$2"
 190   mkdir -p "$(dirname "$2")"
 191   ln -s "$1" "$2"
 192 }
 193
 194 # check whether a command is available to this shell (may be either an
 195 # executable or a builtin)
 196 has() {
 197     type "$1" >/dev/null 2>&1
 198 }
 199
 200 version_ge () {
 201     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 202     local_ver2=$(echo "$2" | tr . ' ')
 203     while true; do
 204         set x $local_ver1
 205         local_first=${2-0}
 206         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 207         shift ${2:+2}
 208         local_ver1=$*
 209         set x $local_ver2
 210         # the second argument finished, the first must be greater or equal
 211         test $# = 1 && return 0
 212         test $local_first -lt $2 && return 1
 213         test $local_first -gt $2 && return 0
 214         shift ${2:+2}
 215         local_ver2=$*
 216     done
 217 }
 218
 219 have_backend () {
 220     echo "$trace_backends" | grep "$1" >/dev/null
 221 }
 222
 223 glob() {
 224     eval test -z '"${1#'"$2"'}"'
 225 }
 226
 227 ld_has() {
 228     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 229 }
 230
 231 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list=""
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 audio_win_int=""
 248 libs_qga=""
 249 debug_info="yes"
 250 lto="false"
 251 stack_protector=""
 252 safe_stack=""
 253 use_containers="yes"
 254 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 255
 256 if test -e "$source_path/.git"
 257 then
 258     git_submodules_action="update"
 259 else
 260     git_submodules_action="ignore"
 261 fi
 262
 263 git_submodules="ui/keycodemapdb"
 264 git="git"
 265
 266 # Don't accept a target_list environment variable.
 267 unset target_list
 268 unset target_list_exclude
 269
 270 # Default value for a variable defining feature "foo".
 271 #  * foo="no"  feature will only be used if --enable-foo arg is given
 272 #  * foo=""    feature will be searched for, and if found, will be used
 273 #              unless --disable-foo is given
 274 #  * foo="yes" this value will only be set by --enable-foo flag.
 275 #              feature will searched for,
 276 #              if not found, configure exits with error
 277 #
 278 # Always add --enable-foo and --disable-foo command line args.
 279 # Distributions want to ensure that several features are compiled in, and it
 280 # is impossible without a --enable-foo that exits if a feature is not found.
 281
 282 default_feature=""
 283 # parse CC options second
 284 for opt do
 285   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 286   case "$opt" in
 287       --without-default-features)
 288           default_feature="no"
 289   ;;
 290   esac
 291 done
 292
 293 brlapi="auto"
 294 curl="auto"
 295 iconv="auto"
 296 curses="auto"
 297 docs="auto"
 298 fdt="auto"
 299 netmap="no"
 300 sdl="auto"
 301 sdl_image="auto"
 302 coreaudio="auto"
 303 virtiofsd="auto"
 304 virtfs="auto"
 305 libudev="auto"
 306 mpath="auto"
 307 vnc="enabled"
 308 sparse="auto"
 309 vde="$default_feature"
 310 vnc_sasl="auto"
 311 vnc_jpeg="auto"
 312 vnc_png="auto"
 313 xkbcommon="auto"
 314 xen="$default_feature"
 315 xen_ctrl_version="$default_feature"
 316 xen_pci_passthrough="auto"
 317 linux_aio="$default_feature"
 318 linux_io_uring="$default_feature"
 319 cap_ng="auto"
 320 attr="auto"
 321 xfs="$default_feature"
 322 tcg="enabled"
 323 membarrier="$default_feature"
 324 vhost_net="$default_feature"
 325 vhost_crypto="$default_feature"
 326 vhost_scsi="$default_feature"
 327 vhost_vsock="$default_feature"
 328 vhost_user="no"
 329 vhost_user_blk_server="auto"
 330 vhost_user_fs="$default_feature"
 331 kvm="auto"
 332 hax="auto"
 333 hvf="auto"
 334 whpx="auto"
 335 nvmm="auto"
 336 rdma="$default_feature"
 337 pvrdma="$default_feature"
 338 gprof="no"
 339 debug_tcg="no"
 340 debug="no"
 341 sanitizers="no"
 342 tsan="no"
 343 fortify_source="$default_feature"
 344 strip_opt="yes"
 345 tcg_interpreter="false"
 346 bigendian="no"
 347 mingw32="no"
 348 gcov="no"
 349 EXESUF=""
 350 HOST_DSOSUF=".so"
 351 modules="no"
 352 module_upgrades="no"
 353 prefix="/usr/local"
 354 qemu_suffix="qemu"
 355 slirp="auto"
 356 oss_lib=""
 357 bsd="no"
 358 linux="no"
 359 solaris="no"
 360 profiler="no"
 361 cocoa="auto"
 362 softmmu="yes"
 363 linux_user="no"
 364 bsd_user="no"
 365 blobs="true"
 366 pkgversion=""
 367 pie=""
 368 qom_cast_debug="yes"
 369 trace_backends="log"
 370 trace_file="trace"
 371 spice="$default_feature"
 372 spice_protocol="auto"
 373 rbd="auto"
 374 smartcard="$default_feature"
 375 u2f="auto"
 376 libusb="$default_feature"
 377 usb_redir="$default_feature"
 378 opengl="$default_feature"
 379 cpuid_h="no"
 380 avx2_opt="$default_feature"
 381 capstone="auto"
 382 lzo="auto"
 383 snappy="auto"
 384 bzip2="auto"
 385 lzfse="auto"
 386 zstd="auto"
 387 guest_agent="$default_feature"
 388 guest_agent_with_vss="no"
 389 guest_agent_ntddscsi="no"
 390 guest_agent_msi="auto"
 391 vss_win32_sdk="$default_feature"
 392 win_sdk="no"
 393 want_tools="$default_feature"
 394 libiscsi="auto"
 395 libnfs="auto"
 396 coroutine=""
 397 coroutine_pool="$default_feature"
 398 debug_stack_usage="no"
 399 crypto_afalg="no"
 400 cfi="false"
 401 cfi_debug="false"
 402 seccomp="auto"
 403 glusterfs="auto"
 404 gtk="auto"
 405 tls_priority="NORMAL"
 406 gnutls="$default_feature"
 407 nettle="$default_feature"
 408 nettle_xts="no"
 409 gcrypt="$default_feature"
 410 gcrypt_xts="no"
 411 qemu_private_xts="yes"
 412 auth_pam="$default_feature"
 413 vte="$default_feature"
 414 virglrenderer="$default_feature"
 415 tpm="$default_feature"
 416 libssh="$default_feature"
 417 live_block_migration=${default_feature:-yes}
 418 numa="$default_feature"
 419 tcmalloc="no"
 420 jemalloc="no"
 421 replication=${default_feature:-yes}
 422 bochs=${default_feature:-yes}
 423 cloop=${default_feature:-yes}
 424 dmg=${default_feature:-yes}
 425 qcow1=${default_feature:-yes}
 426 vdi=${default_feature:-yes}
 427 vvfat=${default_feature:-yes}
 428 qed=${default_feature:-yes}
 429 parallels=${default_feature:-yes}
 430 libxml2="$default_feature"
 431 debug_mutex="no"
 432 libpmem="$default_feature"
 433 default_devices="true"
 434 plugins="no"
 435 fuzzing="no"
 436 rng_none="no"
 437 secret_keyring="$default_feature"
 438 libdaxctl="$default_feature"
 439 meson=""
 440 ninja=""
 441 skip_meson=no
 442 gettext="auto"
 443 fuse="auto"
 444 fuse_lseek="auto"
 445 multiprocess="auto"
 446 slirp_smbd="$default_feature"
 447
 448 malloc_trim="auto"
 449 gio="$default_feature"
 450
 451 # parse CC options second
 452 for opt do
 453   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 454   case "$opt" in
 455   --cross-prefix=*) cross_prefix="$optarg"
 456                     cross_compile="yes"
 457   ;;
 458   --cc=*) CC="$optarg"
 459   ;;
 460   --cxx=*) CXX="$optarg"
 461   ;;
 462   --cpu=*) cpu="$optarg"
 463   ;;
 464   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 465                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 466   ;;
 467   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 468   ;;
 469   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 470                      EXTRA_LDFLAGS="$optarg"
 471   ;;
 472   --enable-debug-info) debug_info="yes"
 473   ;;
 474   --disable-debug-info) debug_info="no"
 475   ;;
 476   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 477   ;;
 478   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 479                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 480                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 481   ;;
 482   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 483                 cc_archs="$cc_archs $cc_arch"
 484                 eval "cross_cc_${cc_arch}=\$optarg"
 485                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 486   ;;
 487   esac
 488 done
 489 # OS specific
 490 # Using uname is really, really broken.  Once we have the right set of checks
 491 # we can eliminate its usage altogether.
 492
 493 # Preferred compiler:
 494 #  ${CC} (if set)
 495 #  ${cross_prefix}gcc (if cross-prefix specified)
 496 #  system compiler
 497 if test -z "${CC}${cross_prefix}"; then
 498   cc="$host_cc"
 499 else
 500   cc="${CC-${cross_prefix}gcc}"
 501 fi
 502
 503 if test -z "${CXX}${cross_prefix}"; then
 504   cxx="c++"
 505 else
 506   cxx="${CXX-${cross_prefix}g++}"
 507 fi
 508
 509 ar="${AR-${cross_prefix}ar}"
 510 as="${AS-${cross_prefix}as}"
 511 ccas="${CCAS-$cc}"
 512 cpp="${CPP-$cc -E}"
 513 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 514 ld="${LD-${cross_prefix}ld}"
 515 ranlib="${RANLIB-${cross_prefix}ranlib}"
 516 nm="${NM-${cross_prefix}nm}"
 517 strip="${STRIP-${cross_prefix}strip}"
 518 windres="${WINDRES-${cross_prefix}windres}"
 519 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 520 query_pkg_config() {
 521     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 522 }
 523 pkg_config=query_pkg_config
 524 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 525
 526 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 527 ARFLAGS="${ARFLAGS-rv}"
 528
 529 # default flags for all hosts
 530 # We use -fwrapv to tell the compiler that we require a C dialect where
 531 # left shift of signed integers is well defined and has the expected
 532 # 2s-complement style results. (Both clang and gcc agree that it
 533 # provides these semantics.)
 534 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 535 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 536 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 537 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 538
 539 # Flags that are needed during configure but later taken care of by Meson
 540 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 541 CONFIGURE_LDFLAGS=
 542
 543
 544 check_define() {
 545 cat > $TMPC <<EOF
 546 #if !defined($1)
 547 #error $1 not defined
 548 #endif
 549 int main(void) { return 0; }
 550 EOF
 551   compile_object
 552 }
 553
 554 check_include() {
 555 cat > $TMPC <<EOF
 556 #include <$1>
 557 int main(void) { return 0; }
 558 EOF
 559   compile_object
 560 }
 561
 562 write_c_skeleton() {
 563     cat > $TMPC <<EOF
 564 int main(void) { return 0; }
 565 EOF
 566 }
 567
 568 write_c_fuzzer_skeleton() {
 569     cat > $TMPC <<EOF
 570 #include <stdint.h>
 571 #include <sys/types.h>
 572 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 573 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 574 EOF
 575 }
 576
 577 if check_define __linux__ ; then
 578   targetos="Linux"
 579 elif check_define _WIN32 ; then
 580   targetos='MINGW32'
 581 elif check_define __OpenBSD__ ; then
 582   targetos='OpenBSD'
 583 elif check_define __sun__ ; then
 584   targetos='SunOS'
 585 elif check_define __HAIKU__ ; then
 586   targetos='Haiku'
 587 elif check_define __FreeBSD__ ; then
 588   targetos='FreeBSD'
 589 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 590   targetos='GNU/kFreeBSD'
 591 elif check_define __DragonFly__ ; then
 592   targetos='DragonFly'
 593 elif check_define __NetBSD__; then
 594   targetos='NetBSD'
 595 elif check_define __APPLE__; then
 596   targetos='Darwin'
 597 else
 598   # This is a fatal error, but don't report it yet, because we
 599   # might be going to just print the --help text, or it might
 600   # be the result of a missing compiler.
 601   targetos='bogus'
 602 fi
 603
 604 # Some host OSes need non-standard checks for which CPU to use.
 605 # Note that these checks are broken for cross-compilation: if you're
 606 # cross-compiling to one of these OSes then you'll need to specify
 607 # the correct CPU with the --cpu option.
 608 case $targetos in
 609 Darwin)
 610   HOST_DSOSUF=".dylib"
 611   ;;
 612 SunOS)
 613   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 614   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 615     cpu="x86_64"
 616   fi
 617 esac
 618
 619 if test ! -z "$cpu" ; then
 620   # command line argument
 621   :
 622 elif check_define __i386__ ; then
 623   cpu="i386"
 624 elif check_define __x86_64__ ; then
 625   if check_define __ILP32__ ; then
 626     cpu="x32"
 627   else
 628     cpu="x86_64"
 629   fi
 630 elif check_define __sparc__ ; then
 631   if check_define __arch64__ ; then
 632     cpu="sparc64"
 633   else
 634     cpu="sparc"
 635   fi
 636 elif check_define _ARCH_PPC ; then
 637   if check_define _ARCH_PPC64 ; then
 638     if check_define _LITTLE_ENDIAN ; then
 639       cpu="ppc64le"
 640     else
 641       cpu="ppc64"
 642     fi
 643   else
 644     cpu="ppc"
 645   fi
 646 elif check_define __mips__ ; then
 647   cpu="mips"
 648 elif check_define __s390__ ; then
 649   if check_define __s390x__ ; then
 650     cpu="s390x"
 651   else
 652     cpu="s390"
 653   fi
 654 elif check_define __riscv ; then
 655   if check_define _LP64 ; then
 656     cpu="riscv64"
 657   else
 658     cpu="riscv32"
 659   fi
 660 elif check_define __arm__ ; then
 661   cpu="arm"
 662 elif check_define __aarch64__ ; then
 663   cpu="aarch64"
 664 else
 665   cpu=$(uname -m)
 666 fi
 667
 668 ARCH=
 669 # Normalise host CPU name and set ARCH.
 670 # Note that this case should only have supported host CPUs, not guests.
 671 case "$cpu" in
 672   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 673   ;;
 674   ppc64le)
 675     ARCH="ppc64"
 676   ;;
 677   i386|i486|i586|i686|i86pc|BePC)
 678     cpu="i386"
 679   ;;
 680   x86_64|amd64)
 681     cpu="x86_64"
 682   ;;
 683   armv*b|armv*l|arm)
 684     cpu="arm"
 685   ;;
 686   aarch64)
 687     cpu="aarch64"
 688   ;;
 689   mips*)
 690     cpu="mips"
 691   ;;
 692   sparc|sun4[cdmuv])
 693     cpu="sparc"
 694   ;;
 695   *)
 696     # This will result in either an error or falling back to TCI later
 697     ARCH=unknown
 698   ;;
 699 esac
 700 if test -z "$ARCH"; then
 701   ARCH="$cpu"
 702 fi
 703
 704 # OS specific
 705
 706 case $targetos in
 707 MINGW32*)
 708   mingw32="yes"
 709   audio_possible_drivers="dsound sdl"
 710   if check_include dsound.h; then
 711     audio_drv_list="dsound"
 712   else
 713     audio_drv_list=""
 714   fi
 715   supported_os="yes"
 716   pie="no"
 717 ;;
 718 GNU/kFreeBSD)
 719   bsd="yes"
 720   audio_drv_list="oss try-sdl"
 721   audio_possible_drivers="oss sdl pa"
 722 ;;
 723 FreeBSD)
 724   bsd="yes"
 725   make="${MAKE-gmake}"
 726   audio_drv_list="oss try-sdl"
 727   audio_possible_drivers="oss sdl pa"
 728   # needed for kinfo_getvmmap(3) in libutil.h
 729   netmap=""  # enable netmap autodetect
 730 ;;
 731 DragonFly)
 732   bsd="yes"
 733   make="${MAKE-gmake}"
 734   audio_drv_list="oss try-sdl"
 735   audio_possible_drivers="oss sdl pa"
 736 ;;
 737 NetBSD)
 738   bsd="yes"
 739   make="${MAKE-gmake}"
 740   audio_drv_list="oss try-sdl"
 741   audio_possible_drivers="oss sdl"
 742   oss_lib="-lossaudio"
 743 ;;
 744 OpenBSD)
 745   bsd="yes"
 746   make="${MAKE-gmake}"
 747   audio_drv_list="try-sdl"
 748   audio_possible_drivers="sdl"
 749 ;;
 750 Darwin)
 751   bsd="yes"
 752   darwin="yes"
 753   audio_drv_list="try-coreaudio try-sdl"
 754   audio_possible_drivers="coreaudio sdl"
 755   # Disable attempts to use ObjectiveC features in os/object.h since they
 756   # won't work when we're compiling with gcc as a C compiler.
 757   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 758 ;;
 759 SunOS)
 760   solaris="yes"
 761   make="${MAKE-gmake}"
 762   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 763   if test -f /usr/include/sys/soundcard.h ; then
 764     audio_drv_list="oss try-sdl"
 765   fi
 766   audio_possible_drivers="oss sdl"
 767 # needed for CMSG_ macros in sys/socket.h
 768   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 769 # needed for TIOCWIN* defines in termios.h
 770   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 771 ;;
 772 Haiku)
 773   haiku="yes"
 774   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 775 ;;
 776 Linux)
 777   audio_drv_list="try-pa oss"
 778   audio_possible_drivers="oss alsa sdl pa"
 779   linux="yes"
 780   linux_user="yes"
 781   vhost_user=${default_feature:-yes}
 782 ;;
 783 esac
 784
 785 if [ "$bsd" = "yes" ] ; then
 786   if [ "$darwin" != "yes" ] ; then
 787     bsd_user="yes"
 788   fi
 789 fi
 790
 791 : ${make=${MAKE-make}}
 792
 793 # We prefer python 3.x. A bare 'python' is traditionally
 794 # python 2.x, but some distros have it as python 3.x, so
 795 # we check that too
 796 python=
 797 explicit_python=no
 798 for binary in "${PYTHON-python3}" python
 799 do
 800     if has "$binary"
 801     then
 802         python=$(command -v "$binary")
 803         break
 804     fi
 805 done
 806
 807
 808 # Check for ancillary tools used in testing
 809 genisoimage=
 810 for binary in genisoimage mkisofs
 811 do
 812     if has $binary
 813     then
 814         genisoimage=$(command -v "$binary")
 815         break
 816     fi
 817 done
 818
 819 # Default objcc to clang if available, otherwise use CC
 820 if has clang; then
 821   objcc=clang
 822 else
 823   objcc="$cc"
 824 fi
 825
 826 if test "$mingw32" = "yes" ; then
 827   EXESUF=".exe"
 828   HOST_DSOSUF=".dll"
 829   # MinGW needs -mthreads for TLS and macro _MT.
 830   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 831   write_c_skeleton;
 832   prefix="/qemu"
 833   qemu_suffix=""
 834   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 835 fi
 836
 837 werror=""
 838
 839 for opt do
 840   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 841   case "$opt" in
 842   --help|-h) show_help=yes
 843   ;;
 844   --version|-V) exec cat $source_path/VERSION
 845   ;;
 846   --prefix=*) prefix="$optarg"
 847   ;;
 848   --interp-prefix=*) interp_prefix="$optarg"
 849   ;;
 850   --cross-prefix=*)
 851   ;;
 852   --cc=*)
 853   ;;
 854   --host-cc=*) host_cc="$optarg"
 855   ;;
 856   --cxx=*)
 857   ;;
 858   --iasl=*) iasl="$optarg"
 859   ;;
 860   --objcc=*) objcc="$optarg"
 861   ;;
 862   --make=*) make="$optarg"
 863   ;;
 864   --install=*)
 865   ;;
 866   --python=*) python="$optarg" ; explicit_python=yes
 867   ;;
 868   --sphinx-build=*) sphinx_build="$optarg"
 869   ;;
 870   --skip-meson) skip_meson=yes
 871   ;;
 872   --meson=*) meson="$optarg"
 873   ;;
 874   --ninja=*) ninja="$optarg"
 875   ;;
 876   --smbd=*) smbd="$optarg"
 877   ;;
 878   --extra-cflags=*)
 879   ;;
 880   --extra-cxxflags=*)
 881   ;;
 882   --extra-ldflags=*)
 883   ;;
 884   --enable-debug-info)
 885   ;;
 886   --disable-debug-info)
 887   ;;
 888   --cross-cc-*)
 889   ;;
 890   --enable-modules)
 891       modules="yes"
 892   ;;
 893   --disable-modules)
 894       modules="no"
 895   ;;
 896   --disable-module-upgrades) module_upgrades="no"
 897   ;;
 898   --enable-module-upgrades) module_upgrades="yes"
 899   ;;
 900   --cpu=*)
 901   ;;
 902   --target-list=*) target_list="$optarg"
 903                    if test "$target_list_exclude"; then
 904                        error_exit "Can't mix --target-list with --target-list-exclude"
 905                    fi
 906   ;;
 907   --target-list-exclude=*) target_list_exclude="$optarg"
 908                    if test "$target_list"; then
 909                        error_exit "Can't mix --target-list-exclude with --target-list"
 910                    fi
 911   ;;
 912   --enable-trace-backends=*) trace_backends="$optarg"
 913   ;;
 914   # XXX: backwards compatibility
 915   --enable-trace-backend=*) trace_backends="$optarg"
 916   ;;
 917   --with-trace-file=*) trace_file="$optarg"
 918   ;;
 919   --with-default-devices) default_devices="true"
 920   ;;
 921   --without-default-devices) default_devices="false"
 922   ;;
 923   --without-default-features) # processed above
 924   ;;
 925   --enable-gprof) gprof="yes"
 926   ;;
 927   --enable-gcov) gcov="yes"
 928   ;;
 929   --static)
 930     static="yes"
 931     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 932   ;;
 933   --mandir=*) mandir="$optarg"
 934   ;;
 935   --bindir=*) bindir="$optarg"
 936   ;;
 937   --libdir=*) libdir="$optarg"
 938   ;;
 939   --libexecdir=*) libexecdir="$optarg"
 940   ;;
 941   --includedir=*) includedir="$optarg"
 942   ;;
 943   --datadir=*) datadir="$optarg"
 944   ;;
 945   --with-suffix=*) qemu_suffix="$optarg"
 946   ;;
 947   --docdir=*) docdir="$optarg"
 948   ;;
 949   --localedir=*) localedir="$optarg"
 950   ;;
 951   --sysconfdir=*) sysconfdir="$optarg"
 952   ;;
 953   --localstatedir=*) local_statedir="$optarg"
 954   ;;
 955   --firmwarepath=*) firmwarepath="$optarg"
 956   ;;
 957   --host=*|--build=*|\
 958   --disable-dependency-tracking|\
 959   --sbindir=*|--sharedstatedir=*|\
 960   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 961   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 962     # These switches are silently ignored, for compatibility with
 963     # autoconf-generated configure scripts. This allows QEMU's
 964     # configure to be used by RPM and similar macros that set
 965     # lots of directory switches by default.
 966   ;;
 967   --disable-sdl) sdl="disabled"
 968   ;;
 969   --enable-sdl) sdl="enabled"
 970   ;;
 971   --disable-sdl-image) sdl_image="disabled"
 972   ;;
 973   --enable-sdl-image) sdl_image="enabled"
 974   ;;
 975   --disable-qom-cast-debug) qom_cast_debug="no"
 976   ;;
 977   --enable-qom-cast-debug) qom_cast_debug="yes"
 978   ;;
 979   --disable-virtfs) virtfs="disabled"
 980   ;;
 981   --enable-virtfs) virtfs="enabled"
 982   ;;
 983   --disable-libudev) libudev="disabled"
 984   ;;
 985   --enable-libudev) libudev="enabled"
 986   ;;
 987   --disable-virtiofsd) virtiofsd="disabled"
 988   ;;
 989   --enable-virtiofsd) virtiofsd="enabled"
 990   ;;
 991   --disable-mpath) mpath="disabled"
 992   ;;
 993   --enable-mpath) mpath="enabled"
 994   ;;
 995   --disable-vnc) vnc="disabled"
 996   ;;
 997   --enable-vnc) vnc="enabled"
 998   ;;
 999   --disable-gettext) gettext="disabled"
1000   ;;
1001   --enable-gettext) gettext="enabled"
1002   ;;
1003   --oss-lib=*) oss_lib="$optarg"
1004   ;;
1005   --audio-drv-list=*) audio_drv_list="$optarg"
1006   ;;
1007   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1008   ;;
1009   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1010   ;;
1011   --enable-debug-tcg) debug_tcg="yes"
1012   ;;
1013   --disable-debug-tcg) debug_tcg="no"
1014   ;;
1015   --enable-debug)
1016       # Enable debugging options that aren't excessively noisy
1017       debug_tcg="yes"
1018       debug_mutex="yes"
1019       debug="yes"
1020       strip_opt="no"
1021       fortify_source="no"
1022   ;;
1023   --enable-sanitizers) sanitizers="yes"
1024   ;;
1025   --disable-sanitizers) sanitizers="no"
1026   ;;
1027   --enable-tsan) tsan="yes"
1028   ;;
1029   --disable-tsan) tsan="no"
1030   ;;
1031   --enable-sparse) sparse="enabled"
1032   ;;
1033   --disable-sparse) sparse="disabled"
1034   ;;
1035   --disable-strip) strip_opt="no"
1036   ;;
1037   --disable-vnc-sasl) vnc_sasl="disabled"
1038   ;;
1039   --enable-vnc-sasl) vnc_sasl="enabled"
1040   ;;
1041   --disable-vnc-jpeg) vnc_jpeg="disabled"
1042   ;;
1043   --enable-vnc-jpeg) vnc_jpeg="enabled"
1044   ;;
1045   --disable-vnc-png) vnc_png="disabled"
1046   ;;
1047   --enable-vnc-png) vnc_png="enabled"
1048   ;;
1049   --disable-slirp) slirp="disabled"
1050   ;;
1051   --enable-slirp) slirp="enabled"
1052   ;;
1053   --enable-slirp=git) slirp="internal"
1054   ;;
1055   --enable-slirp=system) slirp="system"
1056   ;;
1057   --disable-vde) vde="no"
1058   ;;
1059   --enable-vde) vde="yes"
1060   ;;
1061   --disable-netmap) netmap="no"
1062   ;;
1063   --enable-netmap) netmap="yes"
1064   ;;
1065   --disable-xen) xen="disabled"
1066   ;;
1067   --enable-xen) xen="enabled"
1068   ;;
1069   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1070   ;;
1071   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1072   ;;
1073   --disable-brlapi) brlapi="disabled"
1074   ;;
1075   --enable-brlapi) brlapi="enabled"
1076   ;;
1077   --disable-kvm) kvm="disabled"
1078   ;;
1079   --enable-kvm) kvm="enabled"
1080   ;;
1081   --disable-hax) hax="disabled"
1082   ;;
1083   --enable-hax) hax="enabled"
1084   ;;
1085   --disable-hvf) hvf="disabled"
1086   ;;
1087   --enable-hvf) hvf="enabled"
1088   ;;
1089   --disable-nvmm) nvmm="disabled"
1090   ;;
1091   --enable-nvmm) nvmm="enabled"
1092   ;;
1093   --disable-whpx) whpx="disabled"
1094   ;;
1095   --enable-whpx) whpx="enabled"
1096   ;;
1097   --disable-tcg-interpreter) tcg_interpreter="false"
1098   ;;
1099   --enable-tcg-interpreter) tcg_interpreter="true"
1100   ;;
1101   --disable-cap-ng)  cap_ng="disabled"
1102   ;;
1103   --enable-cap-ng) cap_ng="enabled"
1104   ;;
1105   --disable-tcg) tcg="disabled"
1106   ;;
1107   --enable-tcg) tcg="enabled"
1108   ;;
1109   --disable-malloc-trim) malloc_trim="disabled"
1110   ;;
1111   --enable-malloc-trim) malloc_trim="enabled"
1112   ;;
1113   --disable-spice) spice="no"
1114   ;;
1115   --enable-spice)
1116       spice_protocol="yes"
1117       spice="yes"
1118   ;;
1119   --disable-spice-protocol)
1120       spice_protocol="no"
1121       spice="no"
1122   ;;
1123   --enable-spice-protocol) spice_protocol="yes"
1124   ;;
1125   --disable-libiscsi) libiscsi="disabled"
1126   ;;
1127   --enable-libiscsi) libiscsi="enabled"
1128   ;;
1129   --disable-libnfs) libnfs="disabled"
1130   ;;
1131   --enable-libnfs) libnfs="enabled"
1132   ;;
1133   --enable-profiler) profiler="yes"
1134   ;;
1135   --disable-cocoa) cocoa="disabled"
1136   ;;
1137   --enable-cocoa) cocoa="enabled"
1138   ;;
1139   --disable-system) softmmu="no"
1140   ;;
1141   --enable-system) softmmu="yes"
1142   ;;
1143   --disable-user)
1144       linux_user="no" ;
1145       bsd_user="no" ;
1146   ;;
1147   --enable-user) ;;
1148   --disable-linux-user) linux_user="no"
1149   ;;
1150   --enable-linux-user) linux_user="yes"
1151   ;;
1152   --disable-bsd-user) bsd_user="no"
1153   ;;
1154   --enable-bsd-user) bsd_user="yes"
1155   ;;
1156   --enable-pie) pie="yes"
1157   ;;
1158   --disable-pie) pie="no"
1159   ;;
1160   --enable-werror) werror="yes"
1161   ;;
1162   --disable-werror) werror="no"
1163   ;;
1164   --enable-lto) lto="true"
1165   ;;
1166   --disable-lto) lto="false"
1167   ;;
1168   --enable-stack-protector) stack_protector="yes"
1169   ;;
1170   --disable-stack-protector) stack_protector="no"
1171   ;;
1172   --enable-safe-stack) safe_stack="yes"
1173   ;;
1174   --disable-safe-stack) safe_stack="no"
1175   ;;
1176   --enable-cfi)
1177       cfi="true";
1178       lto="true";
1179   ;;
1180   --disable-cfi) cfi="false"
1181   ;;
1182   --enable-cfi-debug) cfi_debug="true"
1183   ;;
1184   --disable-cfi-debug) cfi_debug="false"
1185   ;;
1186   --disable-curses) curses="disabled"
1187   ;;
1188   --enable-curses) curses="enabled"
1189   ;;
1190   --disable-iconv) iconv="disabled"
1191   ;;
1192   --enable-iconv) iconv="enabled"
1193   ;;
1194   --disable-curl) curl="disabled"
1195   ;;
1196   --enable-curl) curl="enabled"
1197   ;;
1198   --disable-fdt) fdt="disabled"
1199   ;;
1200   --enable-fdt) fdt="enabled"
1201   ;;
1202   --enable-fdt=git) fdt="internal"
1203   ;;
1204   --enable-fdt=system) fdt="system"
1205   ;;
1206   --disable-linux-aio) linux_aio="no"
1207   ;;
1208   --enable-linux-aio) linux_aio="yes"
1209   ;;
1210   --disable-linux-io-uring) linux_io_uring="no"
1211   ;;
1212   --enable-linux-io-uring) linux_io_uring="yes"
1213   ;;
1214   --disable-attr) attr="disabled"
1215   ;;
1216   --enable-attr) attr="enabled"
1217   ;;
1218   --disable-membarrier) membarrier="no"
1219   ;;
1220   --enable-membarrier) membarrier="yes"
1221   ;;
1222   --disable-blobs) blobs="false"
1223   ;;
1224   --with-pkgversion=*) pkgversion="$optarg"
1225   ;;
1226   --with-coroutine=*) coroutine="$optarg"
1227   ;;
1228   --disable-coroutine-pool) coroutine_pool="no"
1229   ;;
1230   --enable-coroutine-pool) coroutine_pool="yes"
1231   ;;
1232   --enable-debug-stack-usage) debug_stack_usage="yes"
1233   ;;
1234   --enable-crypto-afalg) crypto_afalg="yes"
1235   ;;
1236   --disable-crypto-afalg) crypto_afalg="no"
1237   ;;
1238   --disable-docs) docs="disabled"
1239   ;;
1240   --enable-docs) docs="enabled"
1241   ;;
1242   --disable-vhost-net) vhost_net="no"
1243   ;;
1244   --enable-vhost-net) vhost_net="yes"
1245   ;;
1246   --disable-vhost-crypto) vhost_crypto="no"
1247   ;;
1248   --enable-vhost-crypto) vhost_crypto="yes"
1249   ;;
1250   --disable-vhost-scsi) vhost_scsi="no"
1251   ;;
1252   --enable-vhost-scsi) vhost_scsi="yes"
1253   ;;
1254   --disable-vhost-vsock) vhost_vsock="no"
1255   ;;
1256   --enable-vhost-vsock) vhost_vsock="yes"
1257   ;;
1258   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1259   ;;
1260   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1261   ;;
1262   --disable-vhost-user-fs) vhost_user_fs="no"
1263   ;;
1264   --enable-vhost-user-fs) vhost_user_fs="yes"
1265   ;;
1266   --disable-opengl) opengl="no"
1267   ;;
1268   --enable-opengl) opengl="yes"
1269   ;;
1270   --disable-rbd) rbd="disabled"
1271   ;;
1272   --enable-rbd) rbd="enabled"
1273   ;;
1274   --disable-xfsctl) xfs="no"
1275   ;;
1276   --enable-xfsctl) xfs="yes"
1277   ;;
1278   --disable-smartcard) smartcard="no"
1279   ;;
1280   --enable-smartcard) smartcard="yes"
1281   ;;
1282   --disable-u2f) u2f="disabled"
1283   ;;
1284   --enable-u2f) u2f="enabled"
1285   ;;
1286   --disable-libusb) libusb="no"
1287   ;;
1288   --enable-libusb) libusb="yes"
1289   ;;
1290   --disable-usb-redir) usb_redir="no"
1291   ;;
1292   --enable-usb-redir) usb_redir="yes"
1293   ;;
1294   --disable-zlib-test)
1295   ;;
1296   --disable-lzo) lzo="disabled"
1297   ;;
1298   --enable-lzo) lzo="enabled"
1299   ;;
1300   --disable-snappy) snappy="disabled"
1301   ;;
1302   --enable-snappy) snappy="enabled"
1303   ;;
1304   --disable-bzip2) bzip2="disabled"
1305   ;;
1306   --enable-bzip2) bzip2="enabled"
1307   ;;
1308   --enable-lzfse) lzfse="enabled"
1309   ;;
1310   --disable-lzfse) lzfse="disabled"
1311   ;;
1312   --disable-zstd) zstd="disabled"
1313   ;;
1314   --enable-zstd) zstd="enabled"
1315   ;;
1316   --enable-guest-agent) guest_agent="yes"
1317   ;;
1318   --disable-guest-agent) guest_agent="no"
1319   ;;
1320   --enable-guest-agent-msi) guest_agent_msi="enabled"
1321   ;;
1322   --disable-guest-agent-msi) guest_agent_msi="disabled"
1323   ;;
1324   --with-vss-sdk) vss_win32_sdk=""
1325   ;;
1326   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1327   ;;
1328   --without-vss-sdk) vss_win32_sdk="no"
1329   ;;
1330   --with-win-sdk) win_sdk=""
1331   ;;
1332   --with-win-sdk=*) win_sdk="$optarg"
1333   ;;
1334   --without-win-sdk) win_sdk="no"
1335   ;;
1336   --enable-tools) want_tools="yes"
1337   ;;
1338   --disable-tools) want_tools="no"
1339   ;;
1340   --enable-seccomp) seccomp="enabled"
1341   ;;
1342   --disable-seccomp) seccomp="disabled"
1343   ;;
1344   --disable-glusterfs) glusterfs="disabled"
1345   ;;
1346   --disable-avx2) avx2_opt="no"
1347   ;;
1348   --enable-avx2) avx2_opt="yes"
1349   ;;
1350   --disable-avx512f) avx512f_opt="no"
1351   ;;
1352   --enable-avx512f) avx512f_opt="yes"
1353   ;;
1354
1355   --enable-glusterfs) glusterfs="enabled"
1356   ;;
1357   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1358       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1359   ;;
1360   --enable-vhdx|--disable-vhdx)
1361       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1362   ;;
1363   --enable-uuid|--disable-uuid)
1364       echo "$0: $opt is obsolete, UUID support is always built" >&2
1365   ;;
1366   --disable-gtk) gtk="disabled"
1367   ;;
1368   --enable-gtk) gtk="enabled"
1369   ;;
1370   --tls-priority=*) tls_priority="$optarg"
1371   ;;
1372   --disable-gnutls) gnutls="no"
1373   ;;
1374   --enable-gnutls) gnutls="yes"
1375   ;;
1376   --disable-nettle) nettle="no"
1377   ;;
1378   --enable-nettle) nettle="yes"
1379   ;;
1380   --disable-gcrypt) gcrypt="no"
1381   ;;
1382   --enable-gcrypt) gcrypt="yes"
1383   ;;
1384   --disable-auth-pam) auth_pam="no"
1385   ;;
1386   --enable-auth-pam) auth_pam="yes"
1387   ;;
1388   --enable-rdma) rdma="yes"
1389   ;;
1390   --disable-rdma) rdma="no"
1391   ;;
1392   --enable-pvrdma) pvrdma="yes"
1393   ;;
1394   --disable-pvrdma) pvrdma="no"
1395   ;;
1396   --disable-vte) vte="no"
1397   ;;
1398   --enable-vte) vte="yes"
1399   ;;
1400   --disable-virglrenderer) virglrenderer="no"
1401   ;;
1402   --enable-virglrenderer) virglrenderer="yes"
1403   ;;
1404   --disable-tpm) tpm="no"
1405   ;;
1406   --enable-tpm) tpm="yes"
1407   ;;
1408   --disable-libssh) libssh="no"
1409   ;;
1410   --enable-libssh) libssh="yes"
1411   ;;
1412   --disable-live-block-migration) live_block_migration="no"
1413   ;;
1414   --enable-live-block-migration) live_block_migration="yes"
1415   ;;
1416   --disable-numa) numa="no"
1417   ;;
1418   --enable-numa) numa="yes"
1419   ;;
1420   --disable-libxml2) libxml2="no"
1421   ;;
1422   --enable-libxml2) libxml2="yes"
1423   ;;
1424   --disable-tcmalloc) tcmalloc="no"
1425   ;;
1426   --enable-tcmalloc) tcmalloc="yes"
1427   ;;
1428   --disable-jemalloc) jemalloc="no"
1429   ;;
1430   --enable-jemalloc) jemalloc="yes"
1431   ;;
1432   --disable-replication) replication="no"
1433   ;;
1434   --enable-replication) replication="yes"
1435   ;;
1436   --disable-bochs) bochs="no"
1437   ;;
1438   --enable-bochs) bochs="yes"
1439   ;;
1440   --disable-cloop) cloop="no"
1441   ;;
1442   --enable-cloop) cloop="yes"
1443   ;;
1444   --disable-dmg) dmg="no"
1445   ;;
1446   --enable-dmg) dmg="yes"
1447   ;;
1448   --disable-qcow1) qcow1="no"
1449   ;;
1450   --enable-qcow1) qcow1="yes"
1451   ;;
1452   --disable-vdi) vdi="no"
1453   ;;
1454   --enable-vdi) vdi="yes"
1455   ;;
1456   --disable-vvfat) vvfat="no"
1457   ;;
1458   --enable-vvfat) vvfat="yes"
1459   ;;
1460   --disable-qed) qed="no"
1461   ;;
1462   --enable-qed) qed="yes"
1463   ;;
1464   --disable-parallels) parallels="no"
1465   ;;
1466   --enable-parallels) parallels="yes"
1467   ;;
1468   --disable-vhost-user) vhost_user="no"
1469   ;;
1470   --enable-vhost-user) vhost_user="yes"
1471   ;;
1472   --disable-vhost-vdpa) vhost_vdpa="no"
1473   ;;
1474   --enable-vhost-vdpa) vhost_vdpa="yes"
1475   ;;
1476   --disable-vhost-kernel) vhost_kernel="no"
1477   ;;
1478   --enable-vhost-kernel) vhost_kernel="yes"
1479   ;;
1480   --disable-capstone) capstone="disabled"
1481   ;;
1482   --enable-capstone) capstone="enabled"
1483   ;;
1484   --enable-capstone=git) capstone="internal"
1485   ;;
1486   --enable-capstone=system) capstone="system"
1487   ;;
1488   --with-git=*) git="$optarg"
1489   ;;
1490   --enable-git-update)
1491       git_submodules_action="update"
1492       echo "--enable-git-update deprecated, use --with-git-submodules=update"
1493   ;;
1494   --disable-git-update)
1495       git_submodules_action="validate"
1496       echo "--disable-git-update deprecated, use --with-git-submodules=validate"
1497   ;;
1498   --with-git-submodules=*)
1499       git_submodules_action="$optarg"
1500   ;;
1501   --enable-debug-mutex) debug_mutex=yes
1502   ;;
1503   --disable-debug-mutex) debug_mutex=no
1504   ;;
1505   --enable-libpmem) libpmem=yes
1506   ;;
1507   --disable-libpmem) libpmem=no
1508   ;;
1509   --enable-xkbcommon) xkbcommon="enabled"
1510   ;;
1511   --disable-xkbcommon) xkbcommon="disabled"
1512   ;;
1513   --enable-plugins) plugins="yes"
1514   ;;
1515   --disable-plugins) plugins="no"
1516   ;;
1517   --enable-containers) use_containers="yes"
1518   ;;
1519   --disable-containers) use_containers="no"
1520   ;;
1521   --enable-fuzzing) fuzzing=yes
1522   ;;
1523   --disable-fuzzing) fuzzing=no
1524   ;;
1525   --gdb=*) gdb_bin="$optarg"
1526   ;;
1527   --enable-rng-none) rng_none=yes
1528   ;;
1529   --disable-rng-none) rng_none=no
1530   ;;
1531   --enable-keyring) secret_keyring="yes"
1532   ;;
1533   --disable-keyring) secret_keyring="no"
1534   ;;
1535   --enable-libdaxctl) libdaxctl=yes
1536   ;;
1537   --disable-libdaxctl) libdaxctl=no
1538   ;;
1539   --enable-fuse) fuse="enabled"
1540   ;;
1541   --disable-fuse) fuse="disabled"
1542   ;;
1543   --enable-fuse-lseek) fuse_lseek="enabled"
1544   ;;
1545   --disable-fuse-lseek) fuse_lseek="disabled"
1546   ;;
1547   --enable-multiprocess) multiprocess="enabled"
1548   ;;
1549   --disable-multiprocess) multiprocess="disabled"
1550   ;;
1551   --enable-gio) gio=yes
1552   ;;
1553   --disable-gio) gio=no
1554   ;;
1555   --enable-slirp-smbd) slirp_smbd=yes
1556   ;;
1557   --disable-slirp-smbd) slirp_smbd=no
1558   ;;
1559   *)
1560       echo "ERROR: unknown option $opt"
1561       echo "Try '$0 --help' for more information"
1562       exit 1
1563   ;;
1564   esac
1565 done
1566
1567 case $git_submodules_action in
1568     update|validate)
1569         if test ! -e "$source_path/.git"; then
1570             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1571             exit 1
1572         fi
1573     ;;
1574     ignore)
1575         if ! test -f "$source_path/ui/keycodemapdb/README"
1576         then
1577             echo
1578             echo "ERROR: missing GIT submodules"
1579             echo
1580             if test -e "$source_path/.git"; then
1581                 echo "--with-git-submodules=ignore specified but submodules were not"
1582                 echo "checked out.  Please initialize and update submodules."
1583             else
1584                 echo "This is not a GIT checkout but module content appears to"
1585                 echo "be missing. Do not use 'git archive' or GitHub download links"
1586                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1587                 echo "supported with source archives linked from:"
1588                 echo
1589                 echo "  https://www.qemu.org/download/#source"
1590                 echo
1591                 echo "Developers working with GIT can use scripts/archive-source.sh"
1592                 echo "if they need to create valid source archives."
1593             fi
1594             echo
1595             exit 1
1596         fi
1597     ;;
1598     *)
1599         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1600         exit 1
1601     ;;
1602 esac
1603
1604 libdir="${libdir:-$prefix/lib}"
1605 libexecdir="${libexecdir:-$prefix/libexec}"
1606 includedir="${includedir:-$prefix/include}"
1607
1608 if test "$mingw32" = "yes" ; then
1609     bindir="${bindir:-$prefix}"
1610 else
1611     bindir="${bindir:-$prefix/bin}"
1612 fi
1613 mandir="${mandir:-$prefix/share/man}"
1614 datadir="${datadir:-$prefix/share}"
1615 docdir="${docdir:-$prefix/share/doc}"
1616 sysconfdir="${sysconfdir:-$prefix/etc}"
1617 local_statedir="${local_statedir:-$prefix/var}"
1618 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1619 localedir="${localedir:-$datadir/locale}"
1620
1621 case "$cpu" in
1622     ppc)
1623            CPU_CFLAGS="-m32"
1624            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1625            ;;
1626     ppc64)
1627            CPU_CFLAGS="-m64"
1628            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1629            ;;
1630     sparc)
1631            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1632            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1633            ;;
1634     sparc64)
1635            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1636            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1637            ;;
1638     s390)
1639            CPU_CFLAGS="-m31"
1640            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1641            ;;
1642     s390x)
1643            CPU_CFLAGS="-m64"
1644            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1645            ;;
1646     i386)
1647            CPU_CFLAGS="-m32"
1648            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1649            ;;
1650     x86_64)
1651            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1652            # If we truly care, we should simply detect this case at
1653            # runtime and generate the fallback to serial emulation.
1654            CPU_CFLAGS="-m64 -mcx16"
1655            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1656            ;;
1657     x32)
1658            CPU_CFLAGS="-mx32"
1659            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1660            ;;
1661     # No special flags required for other host CPUs
1662 esac
1663
1664 eval "cross_cc_${cpu}=\$cc"
1665 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1666 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1667
1668 # For user-mode emulation the host arch has to be one we explicitly
1669 # support, even if we're using TCI.
1670 if [ "$ARCH" = "unknown" ]; then
1671   bsd_user="no"
1672   linux_user="no"
1673 fi
1674
1675 default_target_list=""
1676 deprecated_targets_list=ppc64abi32-linux-user
1677 deprecated_features=""
1678 mak_wilds=""
1679
1680 if [ "$softmmu" = "yes" ]; then
1681     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1682 fi
1683 if [ "$linux_user" = "yes" ]; then
1684     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1685 fi
1686 if [ "$bsd_user" = "yes" ]; then
1687     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1688 fi
1689
1690 # If the user doesn't explicitly specify a deprecated target we will
1691 # skip it.
1692 if test -z "$target_list"; then
1693     if test -z "$target_list_exclude"; then
1694         target_list_exclude="$deprecated_targets_list"
1695     else
1696         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1697     fi
1698 fi
1699
1700 for config in $mak_wilds; do
1701     target="$(basename "$config" .mak)"
1702     if echo "$target_list_exclude" | grep -vq "$target"; then
1703         default_target_list="${default_target_list} $target"
1704     fi
1705 done
1706
1707 # Enumerate public trace backends for --help output
1708 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1709
1710 if test x"$show_help" = x"yes" ; then
1711 cat << EOF
1712
1713 Usage: configure [options]
1714 Options: [defaults in brackets after descriptions]
1715
1716 Standard options:
1717   --help                   print this message
1718   --prefix=PREFIX          install in PREFIX [$prefix]
1719   --interp-prefix=PREFIX   where to find shared libraries, etc.
1720                            use %M for cpu name [$interp_prefix]
1721   --target-list=LIST       set target list (default: build all non-deprecated)
1722 $(echo Available targets: $default_target_list | \
1723   fold -s -w 53 | sed -e 's/^/                           /')
1724 $(echo Deprecated targets: $deprecated_targets_list | \
1725   fold -s -w 53 | sed -e 's/^/                           /')
1726   --target-list-exclude=LIST exclude a set of targets from the default target-list
1727
1728 Advanced options (experts only):
1729   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1730   --cc=CC                  use C compiler CC [$cc]
1731   --iasl=IASL              use ACPI compiler IASL [$iasl]
1732   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1733                            build time
1734   --cxx=CXX                use C++ compiler CXX [$cxx]
1735   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1736   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1737   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1738   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1739   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1740   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1741   --make=MAKE              use specified make [$make]
1742   --python=PYTHON          use specified python [$python]
1743   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1744   --meson=MESON            use specified meson [$meson]
1745   --ninja=NINJA            use specified ninja [$ninja]
1746   --smbd=SMBD              use specified smbd [$smbd]
1747   --with-git=GIT           use specified git [$git]
1748   --with-git-submodules=update   update git submodules (default if .git dir exists)
1749   --with-git-submodules=validate fail if git submodules are not up to date
1750   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1751   --static                 enable static build [$static]
1752   --mandir=PATH            install man pages in PATH
1753   --datadir=PATH           install firmware in PATH/$qemu_suffix
1754   --localedir=PATH         install translation in PATH/$qemu_suffix
1755   --docdir=PATH            install documentation in PATH/$qemu_suffix
1756   --bindir=PATH            install binaries in PATH
1757   --libdir=PATH            install libraries in PATH
1758   --libexecdir=PATH        install helper binaries in PATH
1759   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1760   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1761   --firmwarepath=PATH      search PATH for firmware files
1762   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1763   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1764   --with-pkgversion=VERS   use specified string as sub-version of the package
1765   --without-default-features default all --enable-* options to "disabled"
1766   --without-default-devices  do not include any device that is not needed to
1767                            start the emulator (only use if you are including
1768                            desired devices in default-configs/devices/)
1769   --enable-debug           enable common debug build options
1770   --enable-sanitizers      enable default sanitizers
1771   --enable-tsan            enable thread sanitizer
1772   --disable-strip          disable stripping binaries
1773   --disable-werror         disable compilation abort on warning
1774   --disable-stack-protector disable compiler-provided stack protection
1775   --audio-drv-list=LIST    set audio drivers list:
1776                            Available drivers: $audio_possible_drivers
1777   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1778   --block-drv-rw-whitelist=L
1779                            set block driver read-write whitelist
1780                            (affects only QEMU, not qemu-img)
1781   --block-drv-ro-whitelist=L
1782                            set block driver read-only whitelist
1783                            (affects only QEMU, not qemu-img)
1784   --enable-trace-backends=B Set trace backend
1785                            Available backends: $trace_backend_list
1786   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1787                            Default:trace-<pid>
1788   --disable-slirp          disable SLIRP userspace network connectivity
1789   --enable-tcg-interpreter enable TCI (TCG with bytecode interpreter, experimental and slow)
1790   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1791   --oss-lib                path to OSS library
1792   --cpu=CPU                Build for host CPU [$cpu]
1793   --with-coroutine=BACKEND coroutine backend. Supported options:
1794                            ucontext, sigaltstack, windows
1795   --enable-gcov            enable test coverage analysis with gcov
1796   --disable-blobs          disable installing provided firmware blobs
1797   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1798   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1799   --tls-priority           default TLS protocol/cipher priority string
1800   --enable-gprof           QEMU profiling with gprof
1801   --enable-profiler        profiler support
1802   --enable-debug-stack-usage
1803                            track the maximum stack usage of stacks created by qemu_alloc_stack
1804   --enable-plugins
1805                            enable plugins via shared library loading
1806   --disable-containers     don't use containers for cross-building
1807   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1808
1809 Optional features, enabled with --enable-FEATURE and
1810 disabled with --disable-FEATURE, default is enabled if available
1811 (unless built with --without-default-features):
1812
1813   system          all system emulation targets
1814   user            supported user emulation targets
1815   linux-user      all linux usermode emulation targets
1816   bsd-user        all BSD usermode emulation targets
1817   docs            build documentation
1818   guest-agent     build the QEMU Guest Agent
1819   guest-agent-msi build guest agent Windows MSI installation package
1820   pie             Position Independent Executables
1821   modules         modules support (non-Windows)
1822   module-upgrades try to load modules from alternate paths for upgrades
1823   debug-tcg       TCG debugging (default is disabled)
1824   debug-info      debugging information
1825   lto             Enable Link-Time Optimization.
1826   sparse          sparse checker
1827   safe-stack      SafeStack Stack Smash Protection. Depends on
1828                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1829   cfi             Enable Control-Flow Integrity for indirect function calls.
1830                   In case of a cfi violation, QEMU is terminated with SIGILL
1831                   Depends on lto and is incompatible with modules
1832                   Automatically enables Link-Time Optimization (lto)
1833   cfi-debug       In case of a cfi violation, a message containing the line that
1834                   triggered the error is written to stderr. After the error,
1835                   QEMU is still terminated with SIGILL
1836   gnutls          GNUTLS cryptography support
1837   nettle          nettle cryptography support
1838   gcrypt          libgcrypt cryptography support
1839   auth-pam        PAM access control
1840   sdl             SDL UI
1841   sdl-image       SDL Image support for icons
1842   gtk             gtk UI
1843   vte             vte support for the gtk UI
1844   curses          curses UI
1845   iconv           font glyph conversion support
1846   vnc             VNC UI support
1847   vnc-sasl        SASL encryption for VNC server
1848   vnc-jpeg        JPEG lossy compression for VNC server
1849   vnc-png         PNG compression for VNC server
1850   cocoa           Cocoa UI (Mac OS X only)
1851   virtfs          VirtFS
1852   virtiofsd       build virtiofs daemon (virtiofsd)
1853   libudev         Use libudev to enumerate host devices
1854   mpath           Multipath persistent reservation passthrough
1855   xen             xen backend driver support
1856   xen-pci-passthrough    PCI passthrough support for Xen
1857   brlapi          BrlAPI (Braile)
1858   curl            curl connectivity
1859   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1860   fdt             fdt device tree
1861   kvm             KVM acceleration support
1862   hax             HAX acceleration support
1863   hvf             Hypervisor.framework acceleration support
1864   nvmm            NVMM acceleration support
1865   whpx            Windows Hypervisor Platform acceleration support
1866   rdma            Enable RDMA-based migration
1867   pvrdma          Enable PVRDMA support
1868   vde             support for vde network
1869   netmap          support for netmap network
1870   linux-aio       Linux AIO support
1871   linux-io-uring  Linux io_uring support
1872   cap-ng          libcap-ng support
1873   attr            attr and xattr support
1874   vhost-net       vhost-net kernel acceleration support
1875   vhost-vsock     virtio sockets device support
1876   vhost-scsi      vhost-scsi kernel target support
1877   vhost-crypto    vhost-user-crypto backend support
1878   vhost-kernel    vhost kernel backend support
1879   vhost-user      vhost-user backend support
1880   vhost-user-blk-server    vhost-user-blk server support
1881   vhost-vdpa      vhost-vdpa kernel backend support
1882   spice           spice
1883   spice-protocol  spice-protocol
1884   rbd             rados block device (rbd)
1885   libiscsi        iscsi support
1886   libnfs          nfs support
1887   smartcard       smartcard support (libcacard)
1888   u2f             U2F support (u2f-emu)
1889   libusb          libusb (for usb passthrough)
1890   live-block-migration   Block migration in the main migration stream
1891   usb-redir       usb network redirection support
1892   lzo             support of lzo compression library
1893   snappy          support of snappy compression library
1894   bzip2           support of bzip2 compression library
1895                   (for reading bzip2-compressed dmg images)
1896   lzfse           support of lzfse compression library
1897                   (for reading lzfse-compressed dmg images)
1898   zstd            support for zstd compression library
1899                   (for migration compression and qcow2 cluster compression)
1900   seccomp         seccomp support
1901   coroutine-pool  coroutine freelist (better performance)
1902   glusterfs       GlusterFS backend
1903   tpm             TPM support
1904   libssh          ssh block device support
1905   numa            libnuma support
1906   libxml2         for Parallels image format
1907   tcmalloc        tcmalloc support
1908   jemalloc        jemalloc support
1909   avx2            AVX2 optimization support
1910   avx512f         AVX512F optimization support
1911   replication     replication support
1912   opengl          opengl support
1913   virglrenderer   virgl rendering support
1914   xfsctl          xfsctl support
1915   qom-cast-debug  cast debugging support
1916   tools           build qemu-io, qemu-nbd and qemu-img tools
1917   bochs           bochs image format support
1918   cloop           cloop image format support
1919   dmg             dmg image format support
1920   qcow1           qcow v1 image format support
1921   vdi             vdi image format support
1922   vvfat           vvfat image format support
1923   qed             qed image format support
1924   parallels       parallels image format support
1925   crypto-afalg    Linux AF_ALG crypto backend driver
1926   capstone        capstone disassembler support
1927   debug-mutex     mutex debugging support
1928   libpmem         libpmem support
1929   xkbcommon       xkbcommon support
1930   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1931   libdaxctl       libdaxctl support
1932   fuse            FUSE block device export
1933   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1934   multiprocess    Out of process device emulation support
1935   gio             libgio support
1936   slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1937
1938 NOTE: The object files are built at the place where configure is launched
1939 EOF
1940 exit 0
1941 fi
1942
1943 # Remove old dependency files to make sure that they get properly regenerated
1944 rm -f */config-devices.mak.d
1945
1946 if test -z "$python"
1947 then
1948     error_exit "Python not found. Use --python=/path/to/python"
1949 fi
1950 if ! has "$make"
1951 then
1952     error_exit "GNU make ($make) not found"
1953 fi
1954
1955 # Note that if the Python conditional here evaluates True we will exit
1956 # with status 1 which is a shell 'false' value.
1957 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1958   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1959       "Use --python=/path/to/python to specify a supported Python."
1960 fi
1961
1962 # Preserve python version since some functionality is dependent on it
1963 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1964
1965 # Suppress writing compiled files
1966 python="$python -B"
1967
1968 if test -z "$meson"; then
1969     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1970         meson=meson
1971     elif test $git_submodules_action != 'ignore' ; then
1972         meson=git
1973     elif test -e "${source_path}/meson/meson.py" ; then
1974         meson=internal
1975     else
1976         if test "$explicit_python" = yes; then
1977             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1978         else
1979             error_exit "Meson not found.  Use --meson=/path/to/meson"
1980         fi
1981     fi
1982 else
1983     # Meson uses its own Python interpreter to invoke other Python scripts,
1984     # but the user wants to use the one they specified with --python.
1985     #
1986     # We do not want to override the distro Python interpreter (and sometimes
1987     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1988     # just require --meson=git|internal together with --python.
1989     if test "$explicit_python" = yes; then
1990         case "$meson" in
1991             git | internal) ;;
1992             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1993         esac
1994     fi
1995 fi
1996
1997 if test "$meson" = git; then
1998     git_submodules="${git_submodules} meson"
1999 fi
2000
2001 case "$meson" in
2002     git | internal)
2003         meson="$python ${source_path}/meson/meson.py"
2004         ;;
2005     *) meson=$(command -v "$meson") ;;
2006 esac
2007
2008 # Probe for ninja
2009
2010 if test -z "$ninja"; then
2011     for c in ninja ninja-build samu; do
2012         if has $c; then
2013             ninja=$(command -v "$c")
2014             break
2015         fi
2016     done
2017     if test -z "$ninja"; then
2018       error_exit "Cannot find Ninja"
2019     fi
2020 fi
2021
2022 # Check that the C compiler works. Doing this here before testing
2023 # the host CPU ensures that we had a valid CC to autodetect the
2024 # $cpu var (and we should bail right here if that's not the case).
2025 # It also allows the help message to be printed without a CC.
2026 write_c_skeleton;
2027 if compile_object ; then
2028   : C compiler works ok
2029 else
2030     error_exit "\"$cc\" either does not exist or does not work"
2031 fi
2032 if ! compile_prog ; then
2033     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2034 fi
2035
2036 # Consult white-list to determine whether to enable werror
2037 # by default.  Only enable by default for git builds
2038 if test -z "$werror" ; then
2039     if test "$git_submodules_action" != "ignore" && \
2040         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2041         werror="yes"
2042     else
2043         werror="no"
2044     fi
2045 fi
2046
2047 if test "$targetos" = "bogus"; then
2048     # Now that we know that we're not printing the help and that
2049     # the compiler works (so the results of the check_defines we used
2050     # to identify the OS are reliable), if we didn't recognize the
2051     # host OS we should stop now.
2052     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2053 fi
2054
2055 # Check whether the compiler matches our minimum requirements:
2056 cat > $TMPC << EOF
2057 #if defined(__clang_major__) && defined(__clang_minor__)
2058 # ifdef __apple_build_version__
2059 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
2060 #   error You need at least XCode Clang v10.0 to compile QEMU
2061 #  endif
2062 # else
2063 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
2064 #   error You need at least Clang v6.0 to compile QEMU
2065 #  endif
2066 # endif
2067 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2068 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 5)
2069 #  error You need at least GCC v7.5.0 to compile QEMU
2070 # endif
2071 #else
2072 # error You either need GCC or Clang to compiler QEMU
2073 #endif
2074 int main (void) { return 0; }
2075 EOF
2076 if ! compile_prog "" "" ; then
2077     error_exit "You need at least GCC v7.5 or Clang v6.0 (or XCode Clang v10.0)"
2078 fi
2079
2080 # Accumulate -Wfoo and -Wno-bar separately.
2081 # We will list all of the enable flags first, and the disable flags second.
2082 # Note that we do not add -Werror, because that would enable it for all
2083 # configure tests. If a configure test failed due to -Werror this would
2084 # just silently disable some features, so it's too error prone.
2085
2086 warn_flags=
2087 add_to warn_flags -Wold-style-declaration
2088 add_to warn_flags -Wold-style-definition
2089 add_to warn_flags -Wtype-limits
2090 add_to warn_flags -Wformat-security
2091 add_to warn_flags -Wformat-y2k
2092 add_to warn_flags -Winit-self
2093 add_to warn_flags -Wignored-qualifiers
2094 add_to warn_flags -Wempty-body
2095 add_to warn_flags -Wnested-externs
2096 add_to warn_flags -Wendif-labels
2097 add_to warn_flags -Wexpansion-to-defined
2098 add_to warn_flags -Wimplicit-fallthrough=2
2099
2100 nowarn_flags=
2101 add_to nowarn_flags -Wno-initializer-overrides
2102 add_to nowarn_flags -Wno-missing-include-dirs
2103 add_to nowarn_flags -Wno-shift-negative-value
2104 add_to nowarn_flags -Wno-string-plus-int
2105 add_to nowarn_flags -Wno-typedef-redefinition
2106 add_to nowarn_flags -Wno-tautological-type-limit-compare
2107 add_to nowarn_flags -Wno-psabi
2108
2109 gcc_flags="$warn_flags $nowarn_flags"
2110
2111 cc_has_warning_flag() {
2112     write_c_skeleton;
2113
2114     # Use the positive sense of the flag when testing for -Wno-wombat
2115     # support (gcc will happily accept the -Wno- form of unknown
2116     # warning options).
2117     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2118     compile_prog "-Werror $optflag" ""
2119 }
2120
2121 for flag in $gcc_flags; do
2122     if cc_has_warning_flag $flag ; then
2123         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2124     fi
2125 done
2126
2127 if test "$stack_protector" != "no"; then
2128   cat > $TMPC << EOF
2129 int main(int argc, char *argv[])
2130 {
2131     char arr[64], *p = arr, *c = argv[0];
2132     while (*c) {
2133         *p++ = *c++;
2134     }
2135     return 0;
2136 }
2137 EOF
2138   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2139   sp_on=0
2140   for flag in $gcc_flags; do
2141     # We need to check both a compile and a link, since some compiler
2142     # setups fail only on a .c->.o compile and some only at link time
2143     if compile_object "-Werror $flag" &&
2144        compile_prog "-Werror $flag" ""; then
2145       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2146       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2147       sp_on=1
2148       break
2149     fi
2150   done
2151   if test "$stack_protector" = yes; then
2152     if test $sp_on = 0; then
2153       error_exit "Stack protector not supported"
2154     fi
2155   fi
2156 fi
2157
2158 # Disable -Wmissing-braces on older compilers that warn even for
2159 # the "universal" C zero initializer {0}.
2160 cat > $TMPC << EOF
2161 struct {
2162   int a[2];
2163 } x = {0};
2164 EOF
2165 if compile_object "-Werror" "" ; then
2166   :
2167 else
2168   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2169 fi
2170
2171 # Our module code doesn't support Windows
2172 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2173   error_exit "Modules are not available for Windows"
2174 fi
2175
2176 # module_upgrades is only reasonable if modules are enabled
2177 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2178   error_exit "Can't enable module-upgrades as Modules are not enabled"
2179 fi
2180
2181 # Static linking is not possible with modules or PIE
2182 if test "$static" = "yes" ; then
2183   if test "$modules" = "yes" ; then
2184     error_exit "static and modules are mutually incompatible"
2185   fi
2186 fi
2187
2188 # Unconditional check for compiler __thread support
2189   cat > $TMPC << EOF
2190 static __thread int tls_var;
2191 int main(void) { return tls_var; }
2192 EOF
2193
2194 if ! compile_prog "-Werror" "" ; then
2195     error_exit "Your compiler does not support the __thread specifier for " \
2196         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2197 fi
2198
2199 cat > $TMPC << EOF
2200
2201 #ifdef __linux__
2202 #  define THREAD __thread
2203 #else
2204 #  define THREAD
2205 #endif
2206 static THREAD int tls_var;
2207 int main(void) { return tls_var; }
2208 EOF
2209
2210 # Check we support --no-pie first; we will need this for building ROMs.
2211 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2212   CFLAGS_NOPIE="-fno-pie"
2213 fi
2214
2215 if test "$static" = "yes"; then
2216   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2217     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2218     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2219     pie="yes"
2220   elif test "$pie" = "yes"; then
2221     error_exit "-static-pie not available due to missing toolchain support"
2222   else
2223     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2224     pie="no"
2225   fi
2226 elif test "$pie" = "no"; then
2227   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2228 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2229   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2230   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2231   pie="yes"
2232 elif test "$pie" = "yes"; then
2233   error_exit "PIE not available due to missing toolchain support"
2234 else
2235   echo "Disabling PIE due to missing toolchain support"
2236   pie="no"
2237 fi
2238
2239 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2240 # The combination is known as "full relro", because .got.plt is read-only too.
2241 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2242   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2243 fi
2244
2245 ##########################################
2246 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2247 # use i686 as default anyway, but for those that don't, an explicit
2248 # specification is necessary
2249
2250 if test "$cpu" = "i386"; then
2251   cat > $TMPC << EOF
2252 static int sfaa(int *ptr)
2253 {
2254   return __sync_fetch_and_and(ptr, 0);
2255 }
2256
2257 int main(void)
2258 {
2259   int val = 42;
2260   val = __sync_val_compare_and_swap(&val, 0, 1);
2261   sfaa(&val);
2262   return val;
2263 }
2264 EOF
2265   if ! compile_prog "" "" ; then
2266     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2267   fi
2268 fi
2269
2270 #########################################
2271 # Solaris specific configure tool chain decisions
2272
2273 if test "$solaris" = "yes" ; then
2274   if has ar; then
2275     :
2276   else
2277     if test -f /usr/ccs/bin/ar ; then
2278       error_exit "No path includes ar" \
2279           "Add /usr/ccs/bin to your path and rerun configure"
2280     fi
2281     error_exit "No path includes ar"
2282   fi
2283 fi
2284
2285 if test "$tcg" = "enabled"; then
2286     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
2287     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
2288 fi
2289
2290 if test -z "${target_list+xxx}" ; then
2291     default_targets=yes
2292     for target in $default_target_list; do
2293         target_list="$target_list $target"
2294     done
2295     target_list="${target_list# }"
2296 else
2297     default_targets=no
2298     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2299     for target in $target_list; do
2300         # Check that we recognised the target name; this allows a more
2301         # friendly error message than if we let it fall through.
2302         case " $default_target_list " in
2303             *" $target "*)
2304                 ;;
2305             *)
2306                 error_exit "Unknown target name '$target'"
2307                 ;;
2308         esac
2309     done
2310 fi
2311
2312 for target in $target_list; do
2313     # if a deprecated target is enabled we note it here
2314     if echo "$deprecated_targets_list" | grep -q "$target"; then
2315         add_to deprecated_features $target
2316     fi
2317 done
2318
2319 # see if system emulation was really requested
2320 case " $target_list " in
2321   *"-softmmu "*) softmmu=yes
2322   ;;
2323   *) softmmu=no
2324   ;;
2325 esac
2326
2327 feature_not_found() {
2328   feature=$1
2329   remedy=$2
2330
2331   error_exit "User requested feature $feature" \
2332       "configure was not able to find it." \
2333       "$remedy"
2334 }
2335
2336 # ---
2337 # big/little endian test
2338 cat > $TMPC << EOF
2339 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2340 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2341 extern int foo(short *, short *);
2342 int main(int argc, char *argv[]) {
2343     return foo(big_endian, little_endian);
2344 }
2345 EOF
2346
2347 if compile_object ; then
2348     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2349         bigendian="yes"
2350     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2351         bigendian="no"
2352     else
2353         echo big/little test failed
2354     fi
2355 else
2356     echo big/little test failed
2357 fi
2358
2359 ##########################################
2360 # system tools
2361 if test -z "$want_tools"; then
2362     if test "$softmmu" = "no"; then
2363         want_tools=no
2364     else
2365         want_tools=yes
2366     fi
2367 fi
2368
2369 ##########################################
2370 # Disable features only meaningful for system-mode emulation
2371 if test "$softmmu" = "no"; then
2372     audio_drv_list=""
2373 fi
2374
2375 ##########################################
2376 # Some versions of Mac OS X incorrectly define SIZE_MAX
2377 cat > $TMPC << EOF
2378 #include <stdint.h>
2379 #include <stdio.h>
2380 int main(int argc, char *argv[]) {
2381     return printf("%zu", SIZE_MAX);
2382 }
2383 EOF
2384 have_broken_size_max=no
2385 if ! compile_object -Werror ; then
2386     have_broken_size_max=yes
2387 fi
2388
2389 ##########################################
2390 # L2TPV3 probe
2391
2392 cat > $TMPC <<EOF
2393 #include <sys/socket.h>
2394 #include <linux/ip.h>
2395 int main(void) { return sizeof(struct mmsghdr); }
2396 EOF
2397 if compile_prog "" "" ; then
2398   l2tpv3=yes
2399 else
2400   l2tpv3=no
2401 fi
2402
2403 cat > $TMPC <<EOF
2404 #include <sys/mman.h>
2405 int main(int argc, char *argv[]) {
2406     return mlockall(MCL_FUTURE);
2407 }
2408 EOF
2409 if compile_prog "" "" ; then
2410   have_mlockall=yes
2411 else
2412   have_mlockall=no
2413 fi
2414
2415 #########################################
2416 # vhost interdependencies and host support
2417
2418 # vhost backends
2419 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2420   error_exit "vhost-user is only available on Linux"
2421 fi
2422 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2423 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2424   error_exit "vhost-vdpa is only available on Linux"
2425 fi
2426 test "$vhost_kernel" = "" && vhost_kernel=$linux
2427 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2428   error_exit "vhost-kernel is only available on Linux"
2429 fi
2430
2431 # vhost-kernel devices
2432 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2433 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2434   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2435 fi
2436 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2437 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2438   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2439 fi
2440
2441 # vhost-user backends
2442 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2443 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2444   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2445 fi
2446 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2447 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2448   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2449 fi
2450 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2451 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2452   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2453 fi
2454 #vhost-vdpa backends
2455 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2456 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2457   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2458 fi
2459
2460 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2461 if test "$vhost_net" = ""; then
2462   test "$vhost_net_user" = "yes" && vhost_net=yes
2463   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2464   test "$vhost_kernel" = "yes" && vhost_net=yes
2465 fi
2466
2467 ##########################################
2468 # pkg-config probe
2469
2470 if ! has "$pkg_config_exe"; then
2471   error_exit "pkg-config binary '$pkg_config_exe' not found"
2472 fi
2473
2474 ##########################################
2475 # NPTL probe
2476
2477 if test "$linux_user" = "yes"; then
2478   cat > $TMPC <<EOF
2479 #include <sched.h>
2480 #include <linux/futex.h>
2481 int main(void) {
2482 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2483 #error bork
2484 #endif
2485   return 0;
2486 }
2487 EOF
2488   if ! compile_object ; then
2489     feature_not_found "nptl" "Install glibc and linux kernel headers."
2490   fi
2491 fi
2492
2493 ##########################################
2494 # xen probe
2495
2496 if test "$xen" != "disabled" ; then
2497   # Check whether Xen library path is specified via --extra-ldflags to avoid
2498   # overriding this setting with pkg-config output. If not, try pkg-config
2499   # to obtain all needed flags.
2500
2501   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2502      $pkg_config --exists xencontrol ; then
2503     xen_ctrl_version="$(printf '%d%02d%02d' \
2504       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2505     xen=enabled
2506     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2507     xen_pc="$xen_pc xenevtchn xendevicemodel"
2508     if $pkg_config --exists xentoolcore; then
2509       xen_pc="$xen_pc xentoolcore"
2510     fi
2511     xen_cflags="$($pkg_config --cflags $xen_pc)"
2512     xen_libs="$($pkg_config --libs $xen_pc)"
2513   else
2514
2515     xen_libs="-lxenstore -lxenctrl"
2516     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2517
2518     # First we test whether Xen headers and libraries are available.
2519     # If no, we are done and there is no Xen support.
2520     # If yes, more tests are run to detect the Xen version.
2521
2522     # Xen (any)
2523     cat > $TMPC <<EOF
2524 #include <xenctrl.h>
2525 int main(void) {
2526   return 0;
2527 }
2528 EOF
2529     if ! compile_prog "" "$xen_libs" ; then
2530       # Xen not found
2531       if test "$xen" = "enabled" ; then
2532         feature_not_found "xen" "Install xen devel"
2533       fi
2534       xen=disabled
2535
2536     # Xen unstable
2537     elif
2538         cat > $TMPC <<EOF &&
2539 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2540 #define __XEN_TOOLS__
2541 #include <xendevicemodel.h>
2542 #include <xenforeignmemory.h>
2543 int main(void) {
2544   xendevicemodel_handle *xd;
2545   xenforeignmemory_handle *xfmem;
2546
2547   xd = xendevicemodel_open(0, 0);
2548   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2549
2550   xfmem = xenforeignmemory_open(0, 0);
2551   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2552
2553   return 0;
2554 }
2555 EOF
2556         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2557       then
2558       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2559       xen_ctrl_version=41100
2560       xen=enabled
2561     elif
2562         cat > $TMPC <<EOF &&
2563 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2564 #include <xenforeignmemory.h>
2565 #include <xentoolcore.h>
2566 int main(void) {
2567   xenforeignmemory_handle *xfmem;
2568
2569   xfmem = xenforeignmemory_open(0, 0);
2570   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2571   xentoolcore_restrict_all(0);
2572
2573   return 0;
2574 }
2575 EOF
2576         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2577       then
2578       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2579       xen_ctrl_version=41000
2580       xen=enabled
2581     elif
2582         cat > $TMPC <<EOF &&
2583 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2584 #define __XEN_TOOLS__
2585 #include <xendevicemodel.h>
2586 int main(void) {
2587   xendevicemodel_handle *xd;
2588
2589   xd = xendevicemodel_open(0, 0);
2590   xendevicemodel_close(xd);
2591
2592   return 0;
2593 }
2594 EOF
2595         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2596       then
2597       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2598       xen_ctrl_version=40900
2599       xen=enabled
2600     elif
2601         cat > $TMPC <<EOF &&
2602 /*
2603  * If we have stable libs the we don't want the libxc compat
2604  * layers, regardless of what CFLAGS we may have been given.
2605  *
2606  * Also, check if xengnttab_grant_copy_segment_t is defined and
2607  * grant copy operation is implemented.
2608  */
2609 #undef XC_WANT_COMPAT_EVTCHN_API
2610 #undef XC_WANT_COMPAT_GNTTAB_API
2611 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2612 #include <xenctrl.h>
2613 #include <xenstore.h>
2614 #include <xenevtchn.h>
2615 #include <xengnttab.h>
2616 #include <xenforeignmemory.h>
2617 #include <stdint.h>
2618 #include <xen/hvm/hvm_info_table.h>
2619 #if !defined(HVM_MAX_VCPUS)
2620 # error HVM_MAX_VCPUS not defined
2621 #endif
2622 int main(void) {
2623   xc_interface *xc = NULL;
2624   xenforeignmemory_handle *xfmem;
2625   xenevtchn_handle *xe;
2626   xengnttab_handle *xg;
2627   xengnttab_grant_copy_segment_t* seg = NULL;
2628
2629   xs_daemon_open();
2630
2631   xc = xc_interface_open(0, 0, 0);
2632   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2633   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2634   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2635   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2636
2637   xfmem = xenforeignmemory_open(0, 0);
2638   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2639
2640   xe = xenevtchn_open(0, 0);
2641   xenevtchn_fd(xe);
2642
2643   xg = xengnttab_open(0, 0);
2644   xengnttab_grant_copy(xg, 0, seg);
2645
2646   return 0;
2647 }
2648 EOF
2649         compile_prog "" "$xen_libs $xen_stable_libs"
2650       then
2651       xen_ctrl_version=40800
2652       xen=enabled
2653     elif
2654         cat > $TMPC <<EOF &&
2655 /*
2656  * If we have stable libs the we don't want the libxc compat
2657  * layers, regardless of what CFLAGS we may have been given.
2658  */
2659 #undef XC_WANT_COMPAT_EVTCHN_API
2660 #undef XC_WANT_COMPAT_GNTTAB_API
2661 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2662 #include <xenctrl.h>
2663 #include <xenstore.h>
2664 #include <xenevtchn.h>
2665 #include <xengnttab.h>
2666 #include <xenforeignmemory.h>
2667 #include <stdint.h>
2668 #include <xen/hvm/hvm_info_table.h>
2669 #if !defined(HVM_MAX_VCPUS)
2670 # error HVM_MAX_VCPUS not defined
2671 #endif
2672 int main(void) {
2673   xc_interface *xc = NULL;
2674   xenforeignmemory_handle *xfmem;
2675   xenevtchn_handle *xe;
2676   xengnttab_handle *xg;
2677
2678   xs_daemon_open();
2679
2680   xc = xc_interface_open(0, 0, 0);
2681   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2682   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2683   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2684   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2685
2686   xfmem = xenforeignmemory_open(0, 0);
2687   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2688
2689   xe = xenevtchn_open(0, 0);
2690   xenevtchn_fd(xe);
2691
2692   xg = xengnttab_open(0, 0);
2693   xengnttab_map_grant_ref(xg, 0, 0, 0);
2694
2695   return 0;
2696 }
2697 EOF
2698         compile_prog "" "$xen_libs $xen_stable_libs"
2699       then
2700       xen_ctrl_version=40701
2701       xen=enabled
2702
2703     # Xen 4.6
2704     elif
2705         cat > $TMPC <<EOF &&
2706 #include <xenctrl.h>
2707 #include <xenstore.h>
2708 #include <stdint.h>
2709 #include <xen/hvm/hvm_info_table.h>
2710 #if !defined(HVM_MAX_VCPUS)
2711 # error HVM_MAX_VCPUS not defined
2712 #endif
2713 int main(void) {
2714   xc_interface *xc;
2715   xs_daemon_open();
2716   xc = xc_interface_open(0, 0, 0);
2717   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2718   xc_gnttab_open(NULL, 0);
2719   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2720   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2721   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2722   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2723   return 0;
2724 }
2725 EOF
2726         compile_prog "" "$xen_libs"
2727       then
2728       xen_ctrl_version=40600
2729       xen=enabled
2730
2731     # Xen 4.5
2732     elif
2733         cat > $TMPC <<EOF &&
2734 #include <xenctrl.h>
2735 #include <xenstore.h>
2736 #include <stdint.h>
2737 #include <xen/hvm/hvm_info_table.h>
2738 #if !defined(HVM_MAX_VCPUS)
2739 # error HVM_MAX_VCPUS not defined
2740 #endif
2741 int main(void) {
2742   xc_interface *xc;
2743   xs_daemon_open();
2744   xc = xc_interface_open(0, 0, 0);
2745   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2746   xc_gnttab_open(NULL, 0);
2747   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2748   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2749   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2750   return 0;
2751 }
2752 EOF
2753         compile_prog "" "$xen_libs"
2754       then
2755       xen_ctrl_version=40500
2756       xen=enabled
2757
2758     elif
2759         cat > $TMPC <<EOF &&
2760 #include <xenctrl.h>
2761 #include <xenstore.h>
2762 #include <stdint.h>
2763 #include <xen/hvm/hvm_info_table.h>
2764 #if !defined(HVM_MAX_VCPUS)
2765 # error HVM_MAX_VCPUS not defined
2766 #endif
2767 int main(void) {
2768   xc_interface *xc;
2769   xs_daemon_open();
2770   xc = xc_interface_open(0, 0, 0);
2771   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2772   xc_gnttab_open(NULL, 0);
2773   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2774   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2775   return 0;
2776 }
2777 EOF
2778         compile_prog "" "$xen_libs"
2779       then
2780       xen_ctrl_version=40200
2781       xen=enabled
2782
2783     else
2784       if test "$xen" = "enabled" ; then
2785         feature_not_found "xen (unsupported version)" \
2786                           "Install a supported xen (xen 4.2 or newer)"
2787       fi
2788       xen=disabled
2789     fi
2790
2791     if test "$xen" = enabled; then
2792       if test $xen_ctrl_version -ge 40701  ; then
2793         xen_libs="$xen_libs $xen_stable_libs "
2794       fi
2795     fi
2796   fi
2797 fi
2798
2799 ##########################################
2800 # GNUTLS probe
2801
2802 if test "$gnutls" != "no"; then
2803     pass="no"
2804     if $pkg_config --exists "gnutls >= 3.5.18"; then
2805         gnutls_cflags=$($pkg_config --cflags gnutls)
2806         gnutls_libs=$($pkg_config --libs gnutls)
2807         # Packaging for the static libraries is not always correct.
2808         # At least ubuntu 18.04 ships only shared libraries.
2809         write_c_skeleton
2810         if compile_prog "" "$gnutls_libs" ; then
2811             pass="yes"
2812         fi
2813     fi
2814     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2815         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2816     else
2817         gnutls="$pass"
2818     fi
2819 fi
2820
2821
2822 # If user didn't give a --disable/enable-gcrypt flag,
2823 # then mark as disabled if user requested nettle
2824 # explicitly
2825 if test -z "$gcrypt"
2826 then
2827     if test "$nettle" = "yes"
2828     then
2829         gcrypt="no"
2830     fi
2831 fi
2832
2833 # If user didn't give a --disable/enable-nettle flag,
2834 # then mark as disabled if user requested gcrypt
2835 # explicitly
2836 if test -z "$nettle"
2837 then
2838     if test "$gcrypt" = "yes"
2839     then
2840         nettle="no"
2841     fi
2842 fi
2843
2844 has_libgcrypt() {
2845     if ! has "libgcrypt-config"
2846     then
2847         return 1
2848     fi
2849
2850     if test -n "$cross_prefix"
2851     then
2852         host=$(libgcrypt-config --host)
2853         if test "$host-" != $cross_prefix
2854         then
2855             return 1
2856         fi
2857     fi
2858
2859     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2860     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2861
2862     if test $maj != 1 || test $min -lt 8
2863     then
2864        return 1
2865     fi
2866
2867     return 0
2868 }
2869
2870
2871 if test "$nettle" != "no"; then
2872     pass="no"
2873     if $pkg_config --exists "nettle >= 3.4"; then
2874         nettle_cflags=$($pkg_config --cflags nettle)
2875         nettle_libs=$($pkg_config --libs nettle)
2876         # Link test to make sure the given libraries work (e.g for static).
2877         write_c_skeleton
2878         if compile_prog "" "$nettle_libs" ; then
2879             if test -z "$gcrypt"; then
2880                gcrypt="no"
2881             fi
2882             pass="yes"
2883         fi
2884     fi
2885     if test "$pass" = "yes"
2886     then
2887         cat > $TMPC << EOF
2888 #include <nettle/xts.h>
2889 int main(void) {
2890   return 0;
2891 }
2892 EOF
2893         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2894             nettle_xts=yes
2895             qemu_private_xts=no
2896         fi
2897     fi
2898     if test "$pass" = "no" && test "$nettle" = "yes"; then
2899         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2900     else
2901         nettle="$pass"
2902     fi
2903 fi
2904
2905 if test "$gcrypt" != "no"; then
2906     pass="no"
2907     if has_libgcrypt; then
2908         gcrypt_cflags=$(libgcrypt-config --cflags)
2909         gcrypt_libs=$(libgcrypt-config --libs)
2910         # Debian has removed -lgpg-error from libgcrypt-config
2911         # as it "spreads unnecessary dependencies" which in
2912         # turn breaks static builds...
2913         if test "$static" = "yes"
2914         then
2915             gcrypt_libs="$gcrypt_libs -lgpg-error"
2916         fi
2917
2918         # Link test to make sure the given libraries work (e.g for static).
2919         write_c_skeleton
2920         if compile_prog "" "$gcrypt_libs" ; then
2921             pass="yes"
2922         fi
2923     fi
2924     if test "$pass" = "yes"; then
2925         gcrypt="yes"
2926         cat > $TMPC << EOF
2927 #include <gcrypt.h>
2928 int main(void) {
2929   gcry_cipher_hd_t handle;
2930   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
2931   return 0;
2932 }
2933 EOF
2934         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2935             gcrypt_xts=yes
2936             qemu_private_xts=no
2937         fi
2938     elif test "$gcrypt" = "yes"; then
2939         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2940     else
2941         gcrypt="no"
2942     fi
2943 fi
2944
2945
2946 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2947 then
2948     error_exit "Only one of gcrypt & nettle can be enabled"
2949 fi
2950
2951 ##########################################
2952 # libtasn1 - only for the TLS creds/session test suite
2953
2954 tasn1=yes
2955 tasn1_cflags=""
2956 tasn1_libs=""
2957 if $pkg_config --exists "libtasn1"; then
2958     tasn1_cflags=$($pkg_config --cflags libtasn1)
2959     tasn1_libs=$($pkg_config --libs libtasn1)
2960 else
2961     tasn1=no
2962 fi
2963
2964
2965 ##########################################
2966 # PAM probe
2967
2968 if test "$auth_pam" != "no"; then
2969     cat > $TMPC <<EOF
2970 #include <security/pam_appl.h>
2971 #include <stdio.h>
2972 int main(void) {
2973    const char *service_name = "qemu";
2974    const char *user = "frank";
2975    const struct pam_conv pam_conv = { 0 };
2976    pam_handle_t *pamh = NULL;
2977    pam_start(service_name, user, &pam_conv, &pamh);
2978    return 0;
2979 }
2980 EOF
2981     if compile_prog "" "-lpam" ; then
2982         auth_pam=yes
2983     else
2984         if test "$auth_pam" = "yes"; then
2985             feature_not_found "PAM" "Install PAM development package"
2986         else
2987             auth_pam=no
2988         fi
2989     fi
2990 fi
2991
2992 ##########################################
2993 # VTE probe
2994
2995 if test "$vte" != "no"; then
2996     vteminversion="0.32.0"
2997     if $pkg_config --exists "vte-2.91"; then
2998       vtepackage="vte-2.91"
2999     else
3000       vtepackage="vte-2.90"
3001     fi
3002     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3003         vte_cflags=$($pkg_config --cflags $vtepackage)
3004         vte_libs=$($pkg_config --libs $vtepackage)
3005         vteversion=$($pkg_config --modversion $vtepackage)
3006         vte="yes"
3007     elif test "$vte" = "yes"; then
3008         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3009     else
3010         vte="no"
3011     fi
3012 fi
3013
3014 ##########################################
3015 # RDMA needs OpenFabrics libraries
3016 if test "$rdma" != "no" ; then
3017   cat > $TMPC <<EOF
3018 #include <rdma/rdma_cma.h>
3019 int main(void) { return 0; }
3020 EOF
3021   rdma_libs="-lrdmacm -libverbs -libumad"
3022   if compile_prog "" "$rdma_libs" ; then
3023     rdma="yes"
3024   else
3025     if test "$rdma" = "yes" ; then
3026         error_exit \
3027             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3028             " Your options:" \
3029             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3030             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3031             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3032     fi
3033     rdma="no"
3034   fi
3035 fi
3036
3037 ##########################################
3038 # PVRDMA detection
3039
3040 cat > $TMPC <<EOF &&
3041 #include <sys/mman.h>
3042
3043 int
3044 main(void)
3045 {
3046     char buf = 0;
3047     void *addr = &buf;
3048     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3049
3050     return 0;
3051 }
3052 EOF
3053
3054 if test "$rdma" = "yes" ; then
3055     case "$pvrdma" in
3056     "")
3057         if compile_prog "" ""; then
3058             pvrdma="yes"
3059         else
3060             pvrdma="no"
3061         fi
3062         ;;
3063     "yes")
3064         if ! compile_prog "" ""; then
3065             error_exit "PVRDMA is not supported since mremap is not implemented"
3066         fi
3067         pvrdma="yes"
3068         ;;
3069     "no")
3070         pvrdma="no"
3071         ;;
3072     esac
3073 else
3074     if test "$pvrdma" = "yes" ; then
3075         error_exit "PVRDMA requires rdma suppport"
3076     fi
3077     pvrdma="no"
3078 fi
3079
3080 # Let's see if enhanced reg_mr is supported
3081 if test "$pvrdma" = "yes" ; then
3082
3083 cat > $TMPC <<EOF &&
3084 #include <infiniband/verbs.h>
3085
3086 int
3087 main(void)
3088 {
3089     struct ibv_mr *mr;
3090     struct ibv_pd *pd = NULL;
3091     size_t length = 10;
3092     uint64_t iova = 0;
3093     int access = 0;
3094     void *addr = NULL;
3095
3096     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3097
3098     ibv_dereg_mr(mr);
3099
3100     return 0;
3101 }
3102 EOF
3103     if ! compile_prog "" "-libverbs"; then
3104         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3105     fi
3106 fi
3107
3108 ##########################################
3109 # xfsctl() probe, used for file-posix.c
3110 if test "$xfs" != "no" ; then
3111   cat > $TMPC << EOF
3112 #include <stddef.h>  /* NULL */
3113 #include <xfs/xfs.h>
3114 int main(void)
3115 {
3116     xfsctl(NULL, 0, 0, NULL);
3117     return 0;
3118 }
3119 EOF
3120   if compile_prog "" "" ; then
3121     xfs="yes"
3122   else
3123     if test "$xfs" = "yes" ; then
3124       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3125     fi
3126     xfs=no
3127   fi
3128 fi
3129
3130 ##########################################
3131 # vde libraries probe
3132 if test "$vde" != "no" ; then
3133   vde_libs="-lvdeplug"
3134   cat > $TMPC << EOF
3135 #include <libvdeplug.h>
3136 int main(void)
3137 {
3138     struct vde_open_args a = {0, 0, 0};
3139     char s[] = "";
3140     vde_open(s, s, &a);
3141     return 0;
3142 }
3143 EOF
3144   if compile_prog "" "$vde_libs" ; then
3145     vde=yes
3146   else
3147     if test "$vde" = "yes" ; then
3148       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3149     fi
3150     vde=no
3151   fi
3152 fi
3153
3154 ##########################################
3155 # netmap support probe
3156 # Apart from looking for netmap headers, we make sure that the host API version
3157 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3158 # a minor/major version number. Minor new features will be marked with values up
3159 # to 15, and if something happens that requires a change to the backend we will
3160 # move above 15, submit the backend fixes and modify this two bounds.
3161 if test "$netmap" != "no" ; then
3162   cat > $TMPC << EOF
3163 #include <inttypes.h>
3164 #include <net/if.h>
3165 #include <net/netmap.h>
3166 #include <net/netmap_user.h>
3167 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3168 #error
3169 #endif
3170 int main(void) { return 0; }
3171 EOF
3172   if compile_prog "" "" ; then
3173     netmap=yes
3174   else
3175     if test "$netmap" = "yes" ; then
3176       feature_not_found "netmap"
3177     fi
3178     netmap=no
3179   fi
3180 fi
3181
3182 ##########################################
3183 # detect CoreAudio
3184 if test "$coreaudio" != "no" ; then
3185   coreaudio_libs="-framework CoreAudio"
3186   cat > $TMPC << EOF
3187 #include <CoreAudio/CoreAudio.h>
3188 int main(void)
3189 {
3190   return (int)AudioGetCurrentHostTime();
3191 }
3192 EOF
3193   if compile_prog "" "$coreaudio_libs" ; then
3194     coreaudio=yes
3195   else
3196     coreaudio=no
3197   fi
3198 fi
3199
3200 ##########################################
3201 # Sound support libraries probe
3202
3203 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3204 for drv in $audio_drv_list; do
3205     case $drv in
3206     alsa | try-alsa)
3207     if $pkg_config alsa --exists; then
3208         alsa_libs=$($pkg_config alsa --libs)
3209         alsa_cflags=$($pkg_config alsa --cflags)
3210         alsa=yes
3211         if test "$drv" = "try-alsa"; then
3212             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3213         fi
3214     else
3215         if test "$drv" = "try-alsa"; then
3216             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3217         else
3218             error_exit "$drv check failed" \
3219                 "Make sure to have the $drv libs and headers installed."
3220         fi
3221     fi
3222     ;;
3223
3224     pa | try-pa)
3225     if $pkg_config libpulse --exists; then
3226         libpulse=yes
3227         pulse_libs=$($pkg_config libpulse --libs)
3228         pulse_cflags=$($pkg_config libpulse --cflags)
3229         if test "$drv" = "try-pa"; then
3230             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3231         fi
3232     else
3233         if test "$drv" = "try-pa"; then
3234             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3235         else
3236             error_exit "$drv check failed" \
3237                 "Make sure to have the $drv libs and headers installed."
3238         fi
3239     fi
3240     ;;
3241
3242     sdl)
3243     if test "$sdl" = "no"; then
3244         error_exit "sdl not found or disabled, can not use sdl audio driver"
3245     fi
3246     ;;
3247
3248     try-sdl)
3249     if test "$sdl" = "no"; then
3250         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3251     else
3252         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3253     fi
3254     ;;
3255
3256     coreaudio | try-coreaudio)
3257     if test "$coreaudio" = "no"; then
3258       if test "$drv" = "try-coreaudio"; then
3259         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio//')
3260       else
3261         error_exit "$drv check failed" \
3262                 "Make sure to have the $drv is available."
3263       fi
3264     else
3265       coreaudio_libs="-framework CoreAudio"
3266       if test "$drv" = "try-coreaudio"; then
3267         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio/coreaudio/')
3268       fi
3269     fi
3270     ;;
3271
3272     dsound)
3273       dsound_libs="-lole32 -ldxguid"
3274       audio_win_int="yes"
3275     ;;
3276
3277     oss)
3278       oss_libs="$oss_lib"
3279     ;;
3280
3281     jack | try-jack)
3282     if $pkg_config jack --exists; then
3283         libjack=yes
3284         jack_libs=$($pkg_config jack --libs)
3285         if test "$drv" = "try-jack"; then
3286             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3287         fi
3288     else
3289         if test "$drv" = "try-jack"; then
3290             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3291         else
3292             error_exit "$drv check failed" \
3293                 "Make sure to have the $drv libs and headers installed."
3294         fi
3295     fi
3296     ;;
3297
3298     *)
3299     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3300         error_exit "Unknown driver '$drv' selected" \
3301             "Possible drivers are: $audio_possible_drivers"
3302     }
3303     ;;
3304     esac
3305 done
3306
3307 ##########################################
3308 # glib support probe
3309
3310 glib_req_ver=2.56
3311 glib_modules=gthread-2.0
3312 if test "$modules" = yes; then
3313     glib_modules="$glib_modules gmodule-export-2.0"
3314 fi
3315 if test "$plugins" = yes; then
3316     glib_modules="$glib_modules gmodule-2.0"
3317 fi
3318
3319 for i in $glib_modules; do
3320     if $pkg_config --atleast-version=$glib_req_ver $i; then
3321         glib_cflags=$($pkg_config --cflags $i)
3322         glib_libs=$($pkg_config --libs $i)
3323     else
3324         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3325     fi
3326 done
3327
3328 # This workaround is required due to a bug in pkg-config file for glib as it
3329 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3330
3331 if test "$static" = yes && test "$mingw32" = yes; then
3332     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3333 fi
3334
3335 if ! test "$gio" = "no"; then
3336     pass=no
3337     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3338         gio_cflags=$($pkg_config --cflags gio-2.0)
3339         gio_libs=$($pkg_config --libs gio-2.0)
3340         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3341         if ! has "$gdbus_codegen"; then
3342             gdbus_codegen=
3343         fi
3344         # Check that the libraries actually work -- Ubuntu 18.04 ships
3345         # with pkg-config --static --libs data for gio-2.0 that is missing
3346         # -lblkid and will give a link error.
3347         cat > $TMPC <<EOF
3348 #include <gio/gio.h>
3349 int main(void)
3350 {
3351     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3352     return 0;
3353 }
3354 EOF
3355         if compile_prog "$gio_cflags" "$gio_libs" ; then
3356             pass=yes
3357         else
3358             pass=no
3359         fi
3360
3361         if test "$pass" = "yes" &&
3362             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3363             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3364             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3365         fi
3366     fi
3367
3368     if test "$pass" = "no"; then
3369         if test "$gio" = "yes"; then
3370             feature_not_found "gio" "Install libgio >= 2.0"
3371         else
3372             gio=no
3373         fi
3374     else
3375         gio=yes
3376     fi
3377 fi
3378
3379 # Sanity check that the current size_t matches the
3380 # size that glib thinks it should be. This catches
3381 # problems on multi-arch where people try to build
3382 # 32-bit QEMU while pointing at 64-bit glib headers
3383 cat > $TMPC <<EOF
3384 #include <glib.h>
3385 #include <unistd.h>
3386
3387 #define QEMU_BUILD_BUG_ON(x) \
3388   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3389
3390 int main(void) {
3391    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3392    return 0;
3393 }
3394 EOF
3395
3396 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3397     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3398                "You probably need to set PKG_CONFIG_LIBDIR"\
3399                "to point to the right pkg-config files for your"\
3400                "build target"
3401 fi
3402
3403 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3404 cat > $TMPC << EOF
3405 #include <glib.h>
3406 int main(void) { return 0; }
3407 EOF
3408 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3409     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3410         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3411         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3412     fi
3413 fi
3414
3415 # Silence clang warnings triggered by glib < 2.57.2
3416 cat > $TMPC << EOF
3417 #include <glib.h>
3418 typedef struct Foo {
3419     int i;
3420 } Foo;
3421 static void foo_free(Foo *f)
3422 {
3423     g_free(f);
3424 }
3425 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3426 int main(void) { return 0; }
3427 EOF
3428 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3429     if cc_has_warning_flag "-Wno-unused-function"; then
3430         glib_cflags="$glib_cflags -Wno-unused-function"
3431         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3432     fi
3433 fi
3434
3435 ##########################################
3436 # SHA command probe for modules
3437 if test "$modules" = yes; then
3438     shacmd_probe="sha1sum sha1 shasum"
3439     for c in $shacmd_probe; do
3440         if has $c; then
3441             shacmd="$c"
3442             break
3443         fi
3444     done
3445     if test "$shacmd" = ""; then
3446         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3447     fi
3448 fi
3449
3450 ##########################################
3451 # pthread probe
3452 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3453
3454 pthread=no
3455 cat > $TMPC << EOF
3456 #include <pthread.h>
3457 static void *f(void *p) { return NULL; }
3458 int main(void) {
3459   pthread_t thread;
3460   pthread_create(&thread, 0, f, 0);
3461   return 0;
3462 }
3463 EOF
3464 if compile_prog "" "" ; then
3465   pthread=yes
3466 else
3467   for pthread_lib in $PTHREADLIBS_LIST; do
3468     if compile_prog "" "$pthread_lib" ; then
3469       pthread=yes
3470       break
3471     fi
3472   done
3473 fi
3474
3475 if test "$mingw32" != yes && test "$pthread" = no; then
3476   error_exit "pthread check failed" \
3477       "Make sure to have the pthread libs and headers installed."
3478 fi
3479
3480 # check for pthread_setname_np with thread id
3481 pthread_setname_np_w_tid=no
3482 cat > $TMPC << EOF
3483 #include <pthread.h>
3484
3485 static void *f(void *p) { return NULL; }
3486 int main(void)
3487 {
3488     pthread_t thread;
3489     pthread_create(&thread, 0, f, 0);
3490     pthread_setname_np(thread, "QEMU");
3491     return 0;
3492 }
3493 EOF
3494 if compile_prog "" "$pthread_lib" ; then
3495   pthread_setname_np_w_tid=yes
3496 fi
3497
3498 # check for pthread_setname_np without thread id
3499 pthread_setname_np_wo_tid=no
3500 cat > $TMPC << EOF
3501 #include <pthread.h>
3502
3503 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3504 int main(void)
3505 {
3506     pthread_t thread;
3507     pthread_create(&thread, 0, f, 0);
3508     return 0;
3509 }
3510 EOF
3511 if compile_prog "" "$pthread_lib" ; then
3512   pthread_setname_np_wo_tid=yes
3513 fi
3514
3515 ##########################################
3516 # libssh probe
3517 if test "$libssh" != "no" ; then
3518   if $pkg_config --exists "libssh >= 0.8.7"; then
3519     libssh_cflags=$($pkg_config libssh --cflags)
3520     libssh_libs=$($pkg_config libssh --libs)
3521     libssh=yes
3522   else
3523     if test "$libssh" = "yes" ; then
3524       error_exit "libssh required for --enable-libssh"
3525     fi
3526     libssh=no
3527   fi
3528 fi
3529
3530 ##########################################
3531 # linux-aio probe
3532
3533 if test "$linux_aio" != "no" ; then
3534   cat > $TMPC <<EOF
3535 #include <libaio.h>
3536 #include <sys/eventfd.h>
3537 #include <stddef.h>
3538 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3539 EOF
3540   if compile_prog "" "-laio" ; then
3541     linux_aio=yes
3542   else
3543     if test "$linux_aio" = "yes" ; then
3544       feature_not_found "linux AIO" "Install libaio devel"
3545     fi
3546     linux_aio=no
3547   fi
3548 fi
3549 ##########################################
3550 # linux-io-uring probe
3551
3552 if test "$linux_io_uring" != "no" ; then
3553   if $pkg_config liburing; then
3554     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3555     linux_io_uring_libs=$($pkg_config --libs liburing)
3556     linux_io_uring=yes
3557   else
3558     if test "$linux_io_uring" = "yes" ; then
3559       feature_not_found "linux io_uring" "Install liburing devel"
3560     fi
3561     linux_io_uring=no
3562   fi
3563 fi
3564
3565 ##########################################
3566 # TPM emulation is only on POSIX
3567
3568 if test "$tpm" = ""; then
3569   if test "$mingw32" = "yes"; then
3570     tpm=no
3571   else
3572     tpm=yes
3573   fi
3574 elif test "$tpm" = "yes"; then
3575   if test "$mingw32" = "yes" ; then
3576     error_exit "TPM emulation only available on POSIX systems"
3577   fi
3578 fi
3579
3580 ##########################################
3581 # iovec probe
3582 cat > $TMPC <<EOF
3583 #include <sys/types.h>
3584 #include <sys/uio.h>
3585 #include <unistd.h>
3586 int main(void) { return sizeof(struct iovec); }
3587 EOF
3588 iovec=no
3589 if compile_prog "" "" ; then
3590   iovec=yes
3591 fi
3592
3593 ##########################################
3594 # fdt probe
3595
3596 case "$fdt" in
3597   auto | enabled | internal)
3598     # Simpler to always update submodule, even if not needed.
3599     git_submodules="${git_submodules} dtc"
3600     ;;
3601 esac
3602
3603 ##########################################
3604 # opengl probe (for sdl2, gtk)
3605
3606 gbm="no"
3607 if $pkg_config gbm; then
3608     gbm_cflags="$($pkg_config --cflags gbm)"
3609     gbm_libs="$($pkg_config --libs gbm)"
3610     gbm="yes"
3611 fi
3612
3613 if test "$opengl" != "no" ; then
3614   epoxy=no
3615   if $pkg_config epoxy; then
3616     cat > $TMPC << EOF
3617 #include <epoxy/egl.h>
3618 int main(void) { return 0; }
3619 EOF
3620     if compile_prog "" "" ; then
3621       epoxy=yes
3622     fi
3623   fi
3624
3625   if test "$epoxy" = "yes" ; then
3626     opengl_cflags="$($pkg_config --cflags epoxy)"
3627     opengl_libs="$($pkg_config --libs epoxy)"
3628     opengl=yes
3629   else
3630     if test "$opengl" = "yes" ; then
3631       feature_not_found "opengl" "Please install epoxy with EGL"
3632     fi
3633     opengl_cflags=""
3634     opengl_libs=""
3635     opengl=no
3636   fi
3637 fi
3638
3639 ##########################################
3640 # libxml2 probe
3641 if test "$libxml2" != "no" ; then
3642     if $pkg_config --exists libxml-2.0; then
3643         libxml2="yes"
3644         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3645         libxml2_libs=$($pkg_config --libs libxml-2.0)
3646     else
3647         if test "$libxml2" = "yes"; then
3648             feature_not_found "libxml2" "Install libxml2 devel"
3649         fi
3650         libxml2="no"
3651     fi
3652 fi
3653
3654 # Check for inotify functions when we are building linux-user
3655 # emulator.  This is done because older glibc versions don't
3656 # have syscall stubs for these implemented.  In that case we
3657 # don't provide them even if kernel supports them.
3658 #
3659 inotify=no
3660 cat > $TMPC << EOF
3661 #include <sys/inotify.h>
3662
3663 int
3664 main(void)
3665 {
3666         /* try to start inotify */
3667         return inotify_init();
3668 }
3669 EOF
3670 if compile_prog "" "" ; then
3671   inotify=yes
3672 fi
3673
3674 inotify1=no
3675 cat > $TMPC << EOF
3676 #include <sys/inotify.h>
3677
3678 int
3679 main(void)
3680 {
3681     /* try to start inotify */
3682     return inotify_init1(0);
3683 }
3684 EOF
3685 if compile_prog "" "" ; then
3686   inotify1=yes
3687 fi
3688
3689 # check if pipe2 is there
3690 pipe2=no
3691 cat > $TMPC << EOF
3692 #include <unistd.h>
3693 #include <fcntl.h>
3694
3695 int main(void)
3696 {
3697     int pipefd[2];
3698     return pipe2(pipefd, O_CLOEXEC);
3699 }
3700 EOF
3701 if compile_prog "" "" ; then
3702   pipe2=yes
3703 fi
3704
3705 # check if accept4 is there
3706 accept4=no
3707 cat > $TMPC << EOF
3708 #include <sys/socket.h>
3709 #include <stddef.h>
3710
3711 int main(void)
3712 {
3713     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3714     return 0;
3715 }
3716 EOF
3717 if compile_prog "" "" ; then
3718   accept4=yes
3719 fi
3720
3721 # check if tee/splice is there. vmsplice was added same time.
3722 splice=no
3723 cat > $TMPC << EOF
3724 #include <unistd.h>
3725 #include <fcntl.h>
3726 #include <limits.h>
3727
3728 int main(void)
3729 {
3730     int len, fd = 0;
3731     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3732     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3733     return 0;
3734 }
3735 EOF
3736 if compile_prog "" "" ; then
3737   splice=yes
3738 fi
3739
3740 ##########################################
3741 # libnuma probe
3742
3743 if test "$numa" != "no" ; then
3744   cat > $TMPC << EOF
3745 #include <numa.h>
3746 int main(void) { return numa_available(); }
3747 EOF
3748
3749   if compile_prog "" "-lnuma" ; then
3750     numa=yes
3751     numa_libs="-lnuma"
3752   else
3753     if test "$numa" = "yes" ; then
3754       feature_not_found "numa" "install numactl devel"
3755     fi
3756     numa=no
3757   fi
3758 fi
3759
3760 malloc=system
3761 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3762     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3763     exit 1
3764 elif test "$tcmalloc" = "yes" ; then
3765     malloc=tcmalloc
3766 elif test "$jemalloc" = "yes" ; then
3767     malloc=jemalloc
3768 fi
3769
3770 ##########################################
3771 # signalfd probe
3772 signalfd="no"
3773 cat > $TMPC << EOF
3774 #include <unistd.h>
3775 #include <sys/syscall.h>
3776 #include <signal.h>
3777 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3778 EOF
3779
3780 if compile_prog "" "" ; then
3781   signalfd=yes
3782 fi
3783
3784 # check if optreset global is declared by <getopt.h>
3785 optreset="no"
3786 cat > $TMPC << EOF
3787 #include <getopt.h>
3788 int main(void) { return optreset; }
3789 EOF
3790
3791 if compile_prog "" "" ; then
3792   optreset=yes
3793 fi
3794
3795 # check if eventfd is supported
3796 eventfd=no
3797 cat > $TMPC << EOF
3798 #include <sys/eventfd.h>
3799
3800 int main(void)
3801 {
3802     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3803 }
3804 EOF
3805 if compile_prog "" "" ; then
3806   eventfd=yes
3807 fi
3808
3809 # check if memfd is supported
3810 memfd=no
3811 cat > $TMPC << EOF
3812 #include <sys/mman.h>
3813
3814 int main(void)
3815 {
3816     return memfd_create("foo", MFD_ALLOW_SEALING);
3817 }
3818 EOF
3819 if compile_prog "" "" ; then
3820   memfd=yes
3821 fi
3822
3823 # check for usbfs
3824 have_usbfs=no
3825 if test "$linux_user" = "yes"; then
3826   cat > $TMPC << EOF
3827 #include <linux/usbdevice_fs.h>
3828
3829 #ifndef USBDEVFS_GET_CAPABILITIES
3830 #error "USBDEVFS_GET_CAPABILITIES undefined"
3831 #endif
3832
3833 #ifndef USBDEVFS_DISCONNECT_CLAIM
3834 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3835 #endif
3836
3837 int main(void)
3838 {
3839     return 0;
3840 }
3841 EOF
3842   if compile_prog "" ""; then
3843     have_usbfs=yes
3844   fi
3845 fi
3846
3847 # check for fallocate
3848 fallocate=no
3849 cat > $TMPC << EOF
3850 #include <fcntl.h>
3851
3852 int main(void)
3853 {
3854     fallocate(0, 0, 0, 0);
3855     return 0;
3856 }
3857 EOF
3858 if compile_prog "" "" ; then
3859   fallocate=yes
3860 fi
3861
3862 # check for fallocate hole punching
3863 fallocate_punch_hole=no
3864 cat > $TMPC << EOF
3865 #include <fcntl.h>
3866 #include <linux/falloc.h>
3867
3868 int main(void)
3869 {
3870     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3871     return 0;
3872 }
3873 EOF
3874 if compile_prog "" "" ; then
3875   fallocate_punch_hole=yes
3876 fi
3877
3878 # check that fallocate supports range zeroing inside the file
3879 fallocate_zero_range=no
3880 cat > $TMPC << EOF
3881 #include <fcntl.h>
3882 #include <linux/falloc.h>
3883
3884 int main(void)
3885 {
3886     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3887     return 0;
3888 }
3889 EOF
3890 if compile_prog "" "" ; then
3891   fallocate_zero_range=yes
3892 fi
3893
3894 # check for posix_fallocate
3895 posix_fallocate=no
3896 cat > $TMPC << EOF
3897 #include <fcntl.h>
3898
3899 int main(void)
3900 {
3901     posix_fallocate(0, 0, 0);
3902     return 0;
3903 }
3904 EOF
3905 if compile_prog "" "" ; then
3906     posix_fallocate=yes
3907 fi
3908
3909 # check for sync_file_range
3910 sync_file_range=no
3911 cat > $TMPC << EOF
3912 #include <fcntl.h>
3913
3914 int main(void)
3915 {
3916     sync_file_range(0, 0, 0, 0);
3917     return 0;
3918 }
3919 EOF
3920 if compile_prog "" "" ; then
3921   sync_file_range=yes
3922 fi
3923
3924 # check for linux/fiemap.h and FS_IOC_FIEMAP
3925 fiemap=no
3926 cat > $TMPC << EOF
3927 #include <sys/ioctl.h>
3928 #include <linux/fs.h>
3929 #include <linux/fiemap.h>
3930
3931 int main(void)
3932 {
3933     ioctl(0, FS_IOC_FIEMAP, 0);
3934     return 0;
3935 }
3936 EOF
3937 if compile_prog "" "" ; then
3938   fiemap=yes
3939 fi
3940
3941 # check for dup3
3942 dup3=no
3943 cat > $TMPC << EOF
3944 #include <unistd.h>
3945
3946 int main(void)
3947 {
3948     dup3(0, 0, 0);
3949     return 0;
3950 }
3951 EOF
3952 if compile_prog "" "" ; then
3953   dup3=yes
3954 fi
3955
3956 # check for ppoll support
3957 ppoll=no
3958 cat > $TMPC << EOF
3959 #include <poll.h>
3960
3961 int main(void)
3962 {
3963     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3964     ppoll(&pfd, 1, 0, 0);
3965     return 0;
3966 }
3967 EOF
3968 if compile_prog "" "" ; then
3969   ppoll=yes
3970 fi
3971
3972 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3973 prctl_pr_set_timerslack=no
3974 cat > $TMPC << EOF
3975 #include <sys/prctl.h>
3976
3977 int main(void)
3978 {
3979     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3980     return 0;
3981 }
3982 EOF
3983 if compile_prog "" "" ; then
3984   prctl_pr_set_timerslack=yes
3985 fi
3986
3987 # check for epoll support
3988 epoll=no
3989 cat > $TMPC << EOF
3990 #include <sys/epoll.h>
3991
3992 int main(void)
3993 {
3994     epoll_create(0);
3995     return 0;
3996 }
3997 EOF
3998 if compile_prog "" "" ; then
3999   epoll=yes
4000 fi
4001
4002 # epoll_create1 is a later addition
4003 # so we must check separately for its presence
4004 epoll_create1=no
4005 cat > $TMPC << EOF
4006 #include <sys/epoll.h>
4007
4008 int main(void)
4009 {
4010     /* Note that we use epoll_create1 as a value, not as
4011      * a function being called. This is necessary so that on
4012      * old SPARC glibc versions where the function was present in
4013      * the library but not declared in the header file we will
4014      * fail the configure check. (Otherwise we will get a compiler
4015      * warning but not an error, and will proceed to fail the
4016      * qemu compile where we compile with -Werror.)
4017      */
4018     return (int)(uintptr_t)&epoll_create1;
4019 }
4020 EOF
4021 if compile_prog "" "" ; then
4022   epoll_create1=yes
4023 fi
4024
4025 # check for sendfile support
4026 sendfile=no
4027 cat > $TMPC << EOF
4028 #include <sys/sendfile.h>
4029
4030 int main(void)
4031 {
4032     return sendfile(0, 0, 0, 0);
4033 }
4034 EOF
4035 if compile_prog "" "" ; then
4036   sendfile=yes
4037 fi
4038
4039 # check for timerfd support (glibc 2.8 and newer)
4040 timerfd=no
4041 cat > $TMPC << EOF
4042 #include <sys/timerfd.h>
4043
4044 int main(void)
4045 {
4046     return(timerfd_create(CLOCK_REALTIME, 0));
4047 }
4048 EOF
4049 if compile_prog "" "" ; then
4050   timerfd=yes
4051 fi
4052
4053 # check for setns and unshare support
4054 setns=no
4055 cat > $TMPC << EOF
4056 #include <sched.h>
4057
4058 int main(void)
4059 {
4060     int ret;
4061     ret = setns(0, 0);
4062     ret = unshare(0);
4063     return ret;
4064 }
4065 EOF
4066 if compile_prog "" "" ; then
4067   setns=yes
4068 fi
4069
4070 # clock_adjtime probe
4071 clock_adjtime=no
4072 cat > $TMPC <<EOF
4073 #include <time.h>
4074 #include <sys/timex.h>
4075
4076 int main(void)
4077 {
4078     return clock_adjtime(0, 0);
4079 }
4080 EOF
4081 clock_adjtime=no
4082 if compile_prog "" "" ; then
4083   clock_adjtime=yes
4084 fi
4085
4086 # syncfs probe
4087 syncfs=no
4088 cat > $TMPC <<EOF
4089 #include <unistd.h>
4090
4091 int main(void)
4092 {
4093     return syncfs(0);
4094 }
4095 EOF
4096 syncfs=no
4097 if compile_prog "" "" ; then
4098   syncfs=yes
4099 fi
4100
4101 # Search for bswap_32 function
4102 byteswap_h=no
4103 cat > $TMPC << EOF
4104 #include <byteswap.h>
4105 int main(void) { return bswap_32(0); }
4106 EOF
4107 if compile_prog "" "" ; then
4108   byteswap_h=yes
4109 fi
4110
4111 # Search for bswap32 function
4112 bswap_h=no
4113 cat > $TMPC << EOF
4114 #include <sys/endian.h>
4115 #include <sys/types.h>
4116 #include <machine/bswap.h>
4117 int main(void) { return bswap32(0); }
4118 EOF
4119 if compile_prog "" "" ; then
4120   bswap_h=yes
4121 fi
4122
4123 # Check whether we have openpty() in either libc or libutil
4124 cat > $TMPC << EOF
4125 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4126 int main(void) { return openpty(0, 0, 0, 0, 0); }
4127 EOF
4128
4129 have_openpty="no"
4130 if compile_prog "" "" ; then
4131   have_openpty="yes"
4132 else
4133   if compile_prog "" "-lutil" ; then
4134     have_openpty="yes"
4135   fi
4136 fi
4137
4138 ##########################################
4139 # spice probe
4140 if test "$spice_protocol" != "no" ; then
4141   spice_protocol_cflags=$($pkg_config --cflags spice-protocol 2>/dev/null)
4142   if $pkg_config --atleast-version=0.12.3 spice-protocol; then
4143     spice_protocol="yes"
4144   else
4145     if test "$spice_protocol" = "yes" ; then
4146       feature_not_found "spice_protocol" \
4147           "Install spice-protocol(>=0.12.3) devel"
4148     fi
4149     spice_protocol="no"
4150   fi
4151 fi
4152
4153 if test "$spice" != "no" ; then
4154   cat > $TMPC << EOF
4155 #include <spice.h>
4156 int main(void) { spice_server_new(); return 0; }
4157 EOF
4158   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4159   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4160   if $pkg_config --atleast-version=0.12.5 spice-server && \
4161      test "$spice_protocol" = "yes" && \
4162      compile_prog "$spice_cflags" "$spice_libs" ; then
4163     spice="yes"
4164   else
4165     if test "$spice" = "yes" ; then
4166       feature_not_found "spice" \
4167           "Install spice-server(>=0.12.5) devel"
4168     fi
4169     spice="no"
4170   fi
4171 fi
4172
4173 # check for smartcard support
4174 if test "$smartcard" != "no"; then
4175     if $pkg_config --atleast-version=2.5.1 libcacard; then
4176         libcacard_cflags=$($pkg_config --cflags libcacard)
4177         libcacard_libs=$($pkg_config --libs libcacard)
4178         smartcard="yes"
4179     else
4180         if test "$smartcard" = "yes"; then
4181             feature_not_found "smartcard" "Install libcacard devel"
4182         fi
4183         smartcard="no"
4184     fi
4185 fi
4186
4187 # check for libusb
4188 if test "$libusb" != "no" ; then
4189     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4190         libusb="yes"
4191         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4192         libusb_libs=$($pkg_config --libs libusb-1.0)
4193     else
4194         if test "$libusb" = "yes"; then
4195             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4196         fi
4197         libusb="no"
4198     fi
4199 fi
4200
4201 # check for usbredirparser for usb network redirection support
4202 if test "$usb_redir" != "no" ; then
4203     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4204         usb_redir="yes"
4205         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4206         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4207     else
4208         if test "$usb_redir" = "yes"; then
4209             feature_not_found "usb-redir" "Install usbredir devel"
4210         fi
4211         usb_redir="no"
4212     fi
4213 fi
4214
4215 ##########################################
4216 # check if we have VSS SDK headers for win
4217
4218 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4219         test "$vss_win32_sdk" != "no" ; then
4220   case "$vss_win32_sdk" in
4221     "")   vss_win32_include="-isystem $source_path" ;;
4222     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4223           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4224           vss_win32_include="-isystem $source_path/.sdk/vss"
4225           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4226           ;;
4227     *)    vss_win32_include="-isystem $vss_win32_sdk"
4228   esac
4229   cat > $TMPC << EOF
4230 #define __MIDL_user_allocate_free_DEFINED__
4231 #include <inc/win2003/vss.h>
4232 int main(void) { return VSS_CTX_BACKUP; }
4233 EOF
4234   if compile_prog "$vss_win32_include" "" ; then
4235     guest_agent_with_vss="yes"
4236     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4237     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4238     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4239   else
4240     if test "$vss_win32_sdk" != "" ; then
4241       echo "ERROR: Please download and install Microsoft VSS SDK:"
4242       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4243       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4244       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4245       echo "ERROR: The headers are extracted in the directory \`inc'."
4246       feature_not_found "VSS support"
4247     fi
4248     guest_agent_with_vss="no"
4249   fi
4250 fi
4251
4252 ##########################################
4253 # lookup Windows platform SDK (if not specified)
4254 # The SDK is needed only to build .tlb (type library) file of guest agent
4255 # VSS provider from the source. It is usually unnecessary because the
4256 # pre-compiled .tlb file is included.
4257
4258 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4259         test "$guest_agent_with_vss" = "yes" ; then
4260   if test -z "$win_sdk"; then
4261     programfiles="$PROGRAMFILES"
4262     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4263     if test -n "$programfiles"; then
4264       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4265     else
4266       feature_not_found "Windows SDK"
4267     fi
4268   elif test "$win_sdk" = "no"; then
4269     win_sdk=""
4270   fi
4271 fi
4272
4273 ##########################################
4274 # check if mingw environment provides a recent ntddscsi.h
4275 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4276   cat > $TMPC << EOF
4277 #include <windows.h>
4278 #include <ntddscsi.h>
4279 int main(void) {
4280 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4281 #error Missing required ioctl definitions
4282 #endif
4283   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4284   return addr.Lun;
4285 }
4286 EOF
4287   if compile_prog "" "" ; then
4288     guest_agent_ntddscsi=yes
4289     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4290   fi
4291 fi
4292
4293 ##########################################
4294 # virgl renderer probe
4295
4296 if test "$virglrenderer" != "no" ; then
4297   cat > $TMPC << EOF
4298 #include <virglrenderer.h>
4299 int main(void) { virgl_renderer_poll(); return 0; }
4300 EOF
4301   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4302   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4303   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4304   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4305      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4306     virglrenderer="yes"
4307   else
4308     if test "$virglrenderer" = "yes" ; then
4309       feature_not_found "virglrenderer"
4310     fi
4311     virglrenderer="no"
4312   fi
4313 fi
4314
4315 ##########################################
4316 # capstone
4317
4318 case "$capstone" in
4319   auto | enabled | internal)
4320     # Simpler to always update submodule, even if not needed.
4321     git_submodules="${git_submodules} capstone"
4322     ;;
4323 esac
4324
4325 ##########################################
4326 # check if we have fdatasync
4327
4328 fdatasync=no
4329 cat > $TMPC << EOF
4330 #include <unistd.h>
4331 int main(void) {
4332 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4333 return fdatasync(0);
4334 #else
4335 #error Not supported
4336 #endif
4337 }
4338 EOF
4339 if compile_prog "" "" ; then
4340     fdatasync=yes
4341 fi
4342
4343 ##########################################
4344 # check if we have madvise
4345
4346 madvise=no
4347 cat > $TMPC << EOF
4348 #include <sys/types.h>
4349 #include <sys/mman.h>
4350 #include <stddef.h>
4351 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4352 EOF
4353 if compile_prog "" "" ; then
4354     madvise=yes
4355 fi
4356
4357 ##########################################
4358 # check if we have posix_madvise
4359
4360 posix_madvise=no
4361 cat > $TMPC << EOF
4362 #include <sys/mman.h>
4363 #include <stddef.h>
4364 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4365 EOF
4366 if compile_prog "" "" ; then
4367     posix_madvise=yes
4368 fi
4369
4370 ##########################################
4371 # check if we have posix_memalign()
4372
4373 posix_memalign=no
4374 cat > $TMPC << EOF
4375 #include <stdlib.h>
4376 int main(void) {
4377     void *p;
4378     return posix_memalign(&p, 8, 8);
4379 }
4380 EOF
4381 if compile_prog "" "" ; then
4382     posix_memalign=yes
4383 fi
4384
4385 ##########################################
4386 # check if we have posix_syslog
4387
4388 posix_syslog=no
4389 cat > $TMPC << EOF
4390 #include <syslog.h>
4391 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4392 EOF
4393 if compile_prog "" "" ; then
4394     posix_syslog=yes
4395 fi
4396
4397 ##########################################
4398 # check if we have sem_timedwait
4399
4400 sem_timedwait=no
4401 cat > $TMPC << EOF
4402 #include <semaphore.h>
4403 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4404 EOF
4405 if compile_prog "" "" ; then
4406     sem_timedwait=yes
4407 fi
4408
4409 ##########################################
4410 # check if we have strchrnul
4411
4412 strchrnul=no
4413 cat > $TMPC << EOF
4414 #include <string.h>
4415 int main(void);
4416 // Use a haystack that the compiler shouldn't be able to constant fold
4417 char *haystack = (char*)&main;
4418 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4419 EOF
4420 if compile_prog "" "" ; then
4421     strchrnul=yes
4422 fi
4423
4424 #########################################
4425 # check if we have st_atim
4426
4427 st_atim=no
4428 cat > $TMPC << EOF
4429 #include <sys/stat.h>
4430 #include <stddef.h>
4431 int main(void) { return offsetof(struct stat, st_atim); }
4432 EOF
4433 if compile_prog "" "" ; then
4434     st_atim=yes
4435 fi
4436
4437 ##########################################
4438 # check if trace backend exists
4439
4440 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4441 if test "$?" -ne 0 ; then
4442   error_exit "invalid trace backends" \
4443       "Please choose supported trace backends."
4444 fi
4445
4446 ##########################################
4447 # For 'ust' backend, test if ust headers are present
4448 if have_backend "ust"; then
4449   cat > $TMPC << EOF
4450 #include <lttng/tracepoint.h>
4451 int main(void) { return 0; }
4452 EOF
4453   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4454     if $pkg_config lttng-ust --exists; then
4455       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4456     else
4457       lttng_ust_libs="-llttng-ust -ldl"
4458     fi
4459     if $pkg_config liburcu-bp --exists; then
4460       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4461     else
4462       urcu_bp_libs="-lurcu-bp"
4463     fi
4464   else
4465     error_exit "Trace backend 'ust' missing lttng-ust header files"
4466   fi
4467 fi
4468
4469 ##########################################
4470 # For 'dtrace' backend, test if 'dtrace' command is present
4471 if have_backend "dtrace"; then
4472   if ! has 'dtrace' ; then
4473     error_exit "dtrace command is not found in PATH $PATH"
4474   fi
4475   trace_backend_stap="no"
4476   if has 'stap' ; then
4477     trace_backend_stap="yes"
4478
4479     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4480     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4481     # instead. QEMU --enable-modules depends on this because the SystemTap
4482     # semaphores are linked into the main binary and not the module's shared
4483     # object.
4484     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4485   fi
4486 fi
4487
4488 ##########################################
4489 # check and set a backend for coroutine
4490
4491 # We prefer ucontext, but it's not always possible. The fallback
4492 # is sigcontext. On Windows the only valid backend is the Windows
4493 # specific one.
4494
4495 ucontext_works=no
4496 if test "$darwin" != "yes"; then
4497   cat > $TMPC << EOF
4498 #include <ucontext.h>
4499 #ifdef __stub_makecontext
4500 #error Ignoring glibc stub makecontext which will always fail
4501 #endif
4502 int main(void) { makecontext(0, 0, 0); return 0; }
4503 EOF
4504   if compile_prog "" "" ; then
4505     ucontext_works=yes
4506   fi
4507 fi
4508
4509 if test "$coroutine" = ""; then
4510   if test "$mingw32" = "yes"; then
4511     coroutine=win32
4512   elif test "$ucontext_works" = "yes"; then
4513     coroutine=ucontext
4514   else
4515     coroutine=sigaltstack
4516   fi
4517 else
4518   case $coroutine in
4519   windows)
4520     if test "$mingw32" != "yes"; then
4521       error_exit "'windows' coroutine backend only valid for Windows"
4522     fi
4523     # Unfortunately the user visible backend name doesn't match the
4524     # coroutine-*.c filename for this case, so we have to adjust it here.
4525     coroutine=win32
4526     ;;
4527   ucontext)
4528     if test "$ucontext_works" != "yes"; then
4529       feature_not_found "ucontext"
4530     fi
4531     ;;
4532   sigaltstack)
4533     if test "$mingw32" = "yes"; then
4534       error_exit "only the 'windows' coroutine backend is valid for Windows"
4535     fi
4536     ;;
4537   *)
4538     error_exit "unknown coroutine backend $coroutine"
4539     ;;
4540   esac
4541 fi
4542
4543 if test "$coroutine_pool" = ""; then
4544   coroutine_pool=yes
4545 fi
4546
4547 if test "$debug_stack_usage" = "yes"; then
4548   if test "$coroutine_pool" = "yes"; then
4549     echo "WARN: disabling coroutine pool for stack usage debugging"
4550     coroutine_pool=no
4551   fi
4552 fi
4553
4554 ##################################################
4555 # SafeStack
4556
4557
4558 if test "$safe_stack" = "yes"; then
4559 cat > $TMPC << EOF
4560 int main(int argc, char *argv[])
4561 {
4562 #if ! __has_feature(safe_stack)
4563 #error SafeStack Disabled
4564 #endif
4565     return 0;
4566 }
4567 EOF
4568   flag="-fsanitize=safe-stack"
4569   # Check that safe-stack is supported and enabled.
4570   if compile_prog "-Werror $flag" "$flag"; then
4571     # Flag needed both at compilation and at linking
4572     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4573     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4574   else
4575     error_exit "SafeStack not supported by your compiler"
4576   fi
4577   if test "$coroutine" != "ucontext"; then
4578     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4579   fi
4580 else
4581 cat > $TMPC << EOF
4582 int main(int argc, char *argv[])
4583 {
4584 #if defined(__has_feature)
4585 #if __has_feature(safe_stack)
4586 #error SafeStack Enabled
4587 #endif
4588 #endif
4589     return 0;
4590 }
4591 EOF
4592 if test "$safe_stack" = "no"; then
4593   # Make sure that safe-stack is disabled
4594   if ! compile_prog "-Werror" ""; then
4595     # SafeStack was already enabled, try to explicitly remove the feature
4596     flag="-fno-sanitize=safe-stack"
4597     if ! compile_prog "-Werror $flag" "$flag"; then
4598       error_exit "Configure cannot disable SafeStack"
4599     fi
4600     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4601     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4602   fi
4603 else # "$safe_stack" = ""
4604   # Set safe_stack to yes or no based on pre-existing flags
4605   if compile_prog "-Werror" ""; then
4606     safe_stack="no"
4607   else
4608     safe_stack="yes"
4609     if test "$coroutine" != "ucontext"; then
4610       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4611     fi
4612   fi
4613 fi
4614 fi
4615
4616 ##########################################
4617 # check if we have open_by_handle_at
4618
4619 open_by_handle_at=no
4620 cat > $TMPC << EOF
4621 #include <fcntl.h>
4622 #if !defined(AT_EMPTY_PATH)
4623 # error missing definition
4624 #else
4625 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4626 #endif
4627 EOF
4628 if compile_prog "" "" ; then
4629     open_by_handle_at=yes
4630 fi
4631
4632 ########################################
4633 # check if we have linux/magic.h
4634
4635 linux_magic_h=no
4636 cat > $TMPC << EOF
4637 #include <linux/magic.h>
4638 int main(void) {
4639   return 0;
4640 }
4641 EOF
4642 if compile_prog "" "" ; then
4643     linux_magic_h=yes
4644 fi
4645
4646 ########################################
4647 # check if we have valgrind/valgrind.h
4648
4649 valgrind_h=no
4650 cat > $TMPC << EOF
4651 #include <valgrind/valgrind.h>
4652 int main(void) {
4653   return 0;
4654 }
4655 EOF
4656 if compile_prog "" "" ; then
4657     valgrind_h=yes
4658 fi
4659
4660 ########################################
4661 # check if environ is declared
4662
4663 has_environ=no
4664 cat > $TMPC << EOF
4665 #include <unistd.h>
4666 int main(void) {
4667     environ = 0;
4668     return 0;
4669 }
4670 EOF
4671 if compile_prog "" "" ; then
4672     has_environ=yes
4673 fi
4674
4675 ########################################
4676 # check if cpuid.h is usable.
4677
4678 cat > $TMPC << EOF
4679 #include <cpuid.h>
4680 int main(void) {
4681     unsigned a, b, c, d;
4682     int max = __get_cpuid_max(0, 0);
4683
4684     if (max >= 1) {
4685         __cpuid(1, a, b, c, d);
4686     }
4687
4688     if (max >= 7) {
4689         __cpuid_count(7, 0, a, b, c, d);
4690     }
4691
4692     return 0;
4693 }
4694 EOF
4695 if compile_prog "" "" ; then
4696     cpuid_h=yes
4697 fi
4698
4699 ##########################################
4700 # avx2 optimization requirement check
4701 #
4702 # There is no point enabling this if cpuid.h is not usable,
4703 # since we won't be able to select the new routines.
4704
4705 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4706   cat > $TMPC << EOF
4707 #pragma GCC push_options
4708 #pragma GCC target("avx2")
4709 #include <cpuid.h>
4710 #include <immintrin.h>
4711 static int bar(void *a) {
4712     __m256i x = *(__m256i *)a;
4713     return _mm256_testz_si256(x, x);
4714 }
4715 int main(int argc, char *argv[]) { return bar(argv[0]); }
4716 EOF
4717   if compile_object "" ; then
4718     avx2_opt="yes"
4719   else
4720     avx2_opt="no"
4721   fi
4722 fi
4723
4724 ##########################################
4725 # avx512f optimization requirement check
4726 #
4727 # There is no point enabling this if cpuid.h is not usable,
4728 # since we won't be able to select the new routines.
4729 # by default, it is turned off.
4730 # if user explicitly want to enable it, check environment
4731
4732 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4733   cat > $TMPC << EOF
4734 #pragma GCC push_options
4735 #pragma GCC target("avx512f")
4736 #include <cpuid.h>
4737 #include <immintrin.h>
4738 static int bar(void *a) {
4739     __m512i x = *(__m512i *)a;
4740     return _mm512_test_epi64_mask(x, x);
4741 }
4742 int main(int argc, char *argv[])
4743 {
4744         return bar(argv[0]);
4745 }
4746 EOF
4747   if ! compile_object "" ; then
4748     avx512f_opt="no"
4749   fi
4750 else
4751   avx512f_opt="no"
4752 fi
4753
4754 ########################################
4755 # check if __[u]int128_t is usable.
4756
4757 int128=no
4758 cat > $TMPC << EOF
4759 __int128_t a;
4760 __uint128_t b;
4761 int main (void) {
4762   a = a + b;
4763   b = a * b;
4764   a = a * a;
4765   return 0;
4766 }
4767 EOF
4768 if compile_prog "" "" ; then
4769     int128=yes
4770 fi
4771
4772 #########################################
4773 # See if 128-bit atomic operations are supported.
4774
4775 atomic128=no
4776 if test "$int128" = "yes"; then
4777   cat > $TMPC << EOF
4778 int main(void)
4779 {
4780   unsigned __int128 x = 0, y = 0;
4781   y = __atomic_load(&x, 0);
4782   __atomic_store(&x, y, 0);
4783   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
4784   return 0;
4785 }
4786 EOF
4787   if compile_prog "" "" ; then
4788     atomic128=yes
4789   fi
4790 fi
4791
4792 cmpxchg128=no
4793 if test "$int128" = yes && test "$atomic128" = no; then
4794   cat > $TMPC << EOF
4795 int main(void)
4796 {
4797   unsigned __int128 x = 0, y = 0;
4798   __sync_val_compare_and_swap_16(&x, y, x);
4799   return 0;
4800 }
4801 EOF
4802   if compile_prog "" "" ; then
4803     cmpxchg128=yes
4804   fi
4805 fi
4806
4807 #########################################
4808 # See if 64-bit atomic operations are supported.
4809 # Note that without __atomic builtins, we can only
4810 # assume atomic loads/stores max at pointer size.
4811
4812 cat > $TMPC << EOF
4813 #include <stdint.h>
4814 int main(void)
4815 {
4816   uint64_t x = 0, y = 0;
4817 #ifdef __ATOMIC_RELAXED
4818   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4819   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4820   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4821   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4822   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4823 #else
4824   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4825   __sync_lock_test_and_set(&x, y);
4826   __sync_val_compare_and_swap(&x, y, 0);
4827   __sync_fetch_and_add(&x, y);
4828 #endif
4829   return 0;
4830 }
4831 EOF
4832 if compile_prog "" "" ; then
4833   atomic64=yes
4834 fi
4835
4836 #########################################
4837 # See if --dynamic-list is supported by the linker
4838 ld_dynamic_list="no"
4839 if test "$static" = "no" ; then
4840     cat > $TMPTXT <<EOF
4841 {
4842   foo;
4843 };
4844 EOF
4845
4846     cat > $TMPC <<EOF
4847 #include <stdio.h>
4848 void foo(void);
4849
4850 void foo(void)
4851 {
4852   printf("foo\n");
4853 }
4854
4855 int main(void)
4856 {
4857   foo();
4858   return 0;
4859 }
4860 EOF
4861
4862     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4863         ld_dynamic_list="yes"
4864     fi
4865 fi
4866
4867 #########################################
4868 # See if -exported_symbols_list is supported by the linker
4869
4870 ld_exported_symbols_list="no"
4871 if test "$static" = "no" ; then
4872     cat > $TMPTXT <<EOF
4873   _foo
4874 EOF
4875
4876     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4877         ld_exported_symbols_list="yes"
4878     fi
4879 fi
4880
4881 if  test "$plugins" = "yes" &&
4882     test "$ld_dynamic_list" = "no" &&
4883     test "$ld_exported_symbols_list" = "no" ; then
4884   error_exit \
4885       "Plugin support requires dynamic linking and specifying a set of symbols " \
4886       "that are exported to plugins. Unfortunately your linker doesn't " \
4887       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4888       "for this purpose. You can't build with --static."
4889 fi
4890
4891 ########################################
4892 # check if getauxval is available.
4893
4894 getauxval=no
4895 cat > $TMPC << EOF
4896 #include <sys/auxv.h>
4897 int main(void) {
4898   return getauxval(AT_HWCAP) == 0;
4899 }
4900 EOF
4901 if compile_prog "" "" ; then
4902     getauxval=yes
4903 fi
4904
4905 ########################################
4906 # check if ccache is interfering with
4907 # semantic analysis of macros
4908
4909 unset CCACHE_CPP2
4910 ccache_cpp2=no
4911 cat > $TMPC << EOF
4912 static const int Z = 1;
4913 #define fn() ({ Z; })
4914 #define TAUT(X) ((X) == Z)
4915 #define PAREN(X, Y) (X == Y)
4916 #define ID(X) (X)
4917 int main(int argc, char *argv[])
4918 {
4919     int x = 0, y = 0;
4920     x = ID(x);
4921     x = fn();
4922     fn();
4923     if (PAREN(x, y)) return 0;
4924     if (TAUT(Z)) return 0;
4925     return 0;
4926 }
4927 EOF
4928
4929 if ! compile_object "-Werror"; then
4930     ccache_cpp2=yes
4931 fi
4932
4933 #################################################
4934 # clang does not support glibc + FORTIFY_SOURCE.
4935
4936 if test "$fortify_source" != "no"; then
4937   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4938     fortify_source="no";
4939   elif test -n "$cxx" && has $cxx &&
4940        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4941     fortify_source="no";
4942   else
4943     fortify_source="yes"
4944   fi
4945 fi
4946
4947 ###############################################
4948 # Check if copy_file_range is provided by glibc
4949 have_copy_file_range=no
4950 cat > $TMPC << EOF
4951 #include <unistd.h>
4952 int main(void) {
4953   copy_file_range(0, NULL, 0, NULL, 0, 0);
4954   return 0;
4955 }
4956 EOF
4957 if compile_prog "" "" ; then
4958     have_copy_file_range=yes
4959 fi
4960
4961 ##########################################
4962 # check if struct fsxattr is available via linux/fs.h
4963
4964 have_fsxattr=no
4965 cat > $TMPC << EOF
4966 #include <linux/fs.h>
4967 struct fsxattr foo;
4968 int main(void) {
4969   return 0;
4970 }
4971 EOF
4972 if compile_prog "" "" ; then
4973     have_fsxattr=yes
4974 fi
4975
4976 ##########################################
4977 # check for usable membarrier system call
4978 if test "$membarrier" = "yes"; then
4979     have_membarrier=no
4980     if test "$mingw32" = "yes" ; then
4981         have_membarrier=yes
4982     elif test "$linux" = "yes" ; then
4983         cat > $TMPC << EOF
4984     #include <linux/membarrier.h>
4985     #include <sys/syscall.h>
4986     #include <unistd.h>
4987     #include <stdlib.h>
4988     int main(void) {
4989         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4990         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4991         exit(0);
4992     }
4993 EOF
4994         if compile_prog "" "" ; then
4995             have_membarrier=yes
4996         fi
4997     fi
4998     if test "$have_membarrier" = "no"; then
4999       feature_not_found "membarrier" "membarrier system call not available"
5000     fi
5001 else
5002     # Do not enable it by default even for Mingw32, because it doesn't
5003     # work on Wine.
5004     membarrier=no
5005 fi
5006
5007 ##########################################
5008 # check if rtnetlink.h exists and is useful
5009 have_rtnetlink=no
5010 cat > $TMPC << EOF
5011 #include <linux/rtnetlink.h>
5012 int main(void) {
5013   return IFLA_PROTO_DOWN;
5014 }
5015 EOF
5016 if compile_prog "" "" ; then
5017     have_rtnetlink=yes
5018 fi
5019
5020 ##########################################
5021 # check for usable AF_VSOCK environment
5022 have_af_vsock=no
5023 cat > $TMPC << EOF
5024 #include <errno.h>
5025 #include <sys/types.h>
5026 #include <sys/socket.h>
5027 #if !defined(AF_VSOCK)
5028 # error missing AF_VSOCK flag
5029 #endif
5030 #include <linux/vm_sockets.h>
5031 int main(void) {
5032     int sock, ret;
5033     struct sockaddr_vm svm;
5034     socklen_t len = sizeof(svm);
5035     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5036     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5037     if ((ret == -1) && (errno == ENOTCONN)) {
5038         return 0;
5039     }
5040     return -1;
5041 }
5042 EOF
5043 if compile_prog "" "" ; then
5044     have_af_vsock=yes
5045 fi
5046
5047 ##########################################
5048 # check for usable AF_ALG environment
5049 have_afalg=no
5050 cat > $TMPC << EOF
5051 #include <errno.h>
5052 #include <sys/types.h>
5053 #include <sys/socket.h>
5054 #include <linux/if_alg.h>
5055 int main(void) {
5056     int sock;
5057     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5058     return sock;
5059 }
5060 EOF
5061 if compile_prog "" "" ; then
5062     have_afalg=yes
5063 fi
5064 if test "$crypto_afalg" = "yes"
5065 then
5066     if test "$have_afalg" != "yes"
5067     then
5068         error_exit "AF_ALG requested but could not be detected"
5069     fi
5070 fi
5071
5072
5073 #################################################
5074 # check for sysmacros.h
5075
5076 have_sysmacros=no
5077 cat > $TMPC << EOF
5078 #include <sys/sysmacros.h>
5079 int main(void) {
5080     return makedev(0, 0);
5081 }
5082 EOF
5083 if compile_prog "" "" ; then
5084     have_sysmacros=yes
5085 fi
5086
5087 ##########################################
5088 # check for _Static_assert()
5089
5090 have_static_assert=no
5091 cat > $TMPC << EOF
5092 _Static_assert(1, "success");
5093 int main(void) {
5094     return 0;
5095 }
5096 EOF
5097 if compile_prog "" "" ; then
5098     have_static_assert=yes
5099 fi
5100
5101 ##########################################
5102 # check for utmpx.h, it is missing e.g. on OpenBSD
5103
5104 have_utmpx=no
5105 cat > $TMPC << EOF
5106 #include <utmpx.h>
5107 struct utmpx user_info;
5108 int main(void) {
5109     return 0;
5110 }
5111 EOF
5112 if compile_prog "" "" ; then
5113     have_utmpx=yes
5114 fi
5115
5116 ##########################################
5117 # check for getrandom()
5118
5119 have_getrandom=no
5120 cat > $TMPC << EOF
5121 #include <sys/random.h>
5122 int main(void) {
5123     return getrandom(0, 0, GRND_NONBLOCK);
5124 }
5125 EOF
5126 if compile_prog "" "" ; then
5127     have_getrandom=yes
5128 fi
5129
5130 ##########################################
5131 # checks for sanitizers
5132
5133 have_asan=no
5134 have_ubsan=no
5135 have_asan_iface_h=no
5136 have_asan_iface_fiber=no
5137
5138 if test "$sanitizers" = "yes" ; then
5139   write_c_skeleton
5140   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5141       have_asan=yes
5142   fi
5143
5144   # we could use a simple skeleton for flags checks, but this also
5145   # detect the static linking issue of ubsan, see also:
5146   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5147   cat > $TMPC << EOF
5148 #include <stdlib.h>
5149 int main(void) {
5150     void *tmp = malloc(10);
5151     if (tmp != NULL) {
5152         return *(int *)(tmp + 2);
5153     }
5154     return 1;
5155 }
5156 EOF
5157   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5158       have_ubsan=yes
5159   fi
5160
5161   if check_include "sanitizer/asan_interface.h" ; then
5162       have_asan_iface_h=yes
5163   fi
5164
5165   cat > $TMPC << EOF
5166 #include <sanitizer/asan_interface.h>
5167 int main(void) {
5168   __sanitizer_start_switch_fiber(0, 0, 0);
5169   return 0;
5170 }
5171 EOF
5172   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5173       have_asan_iface_fiber=yes
5174   fi
5175 fi
5176
5177 ##########################################
5178 # checks for fuzzer
5179 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5180   write_c_fuzzer_skeleton
5181   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5182     have_fuzzer=yes
5183   else
5184     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5185     exit 1
5186   fi
5187 fi
5188
5189 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5190 # keep it separate until that is not the case.
5191 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5192   error_exit "TSAN is not supported with other sanitiziers."
5193 fi
5194 have_tsan=no
5195 have_tsan_iface_fiber=no
5196 if test "$tsan" = "yes" ; then
5197   write_c_skeleton
5198   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5199       have_tsan=yes
5200   fi
5201   cat > $TMPC << EOF
5202 #include <sanitizer/tsan_interface.h>
5203 int main(void) {
5204   __tsan_create_fiber(0);
5205   return 0;
5206 }
5207 EOF
5208   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5209       have_tsan_iface_fiber=yes
5210   fi
5211 fi
5212
5213 ##########################################
5214 # check for libpmem
5215
5216 if test "$libpmem" != "no"; then
5217         if $pkg_config --exists "libpmem"; then
5218                 libpmem="yes"
5219                 libpmem_libs=$($pkg_config --libs libpmem)
5220                 libpmem_cflags=$($pkg_config --cflags libpmem)
5221         else
5222                 if test "$libpmem" = "yes" ; then
5223                         feature_not_found "libpmem" "Install nvml or pmdk"
5224                 fi
5225                 libpmem="no"
5226         fi
5227 fi
5228
5229 ##########################################
5230 # check for libdaxctl
5231
5232 if test "$libdaxctl" != "no"; then
5233         if $pkg_config --atleast-version=57 "libdaxctl"; then
5234                 libdaxctl="yes"
5235                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5236                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5237         else
5238                 if test "$libdaxctl" = "yes" ; then
5239                         feature_not_found "libdaxctl" "Install libdaxctl"
5240                 fi
5241                 libdaxctl="no"
5242         fi
5243 fi
5244
5245 ##########################################
5246 # check for slirp
5247
5248 case "$slirp" in
5249   auto | enabled | internal)
5250     # Simpler to always update submodule, even if not needed.
5251     git_submodules="${git_submodules} slirp"
5252     ;;
5253 esac
5254
5255 # Check for slirp smbd dupport
5256 : ${smbd=${SMBD-/usr/sbin/smbd}}
5257 if test "$slirp_smbd" != "no" ; then
5258   if test "$mingw32" = "yes" ; then
5259     if test "$slirp_smbd" = "yes" ; then
5260       error_exit "Host smbd not supported on this platform."
5261     fi
5262     slirp_smbd=no
5263   else
5264     slirp_smbd=yes
5265   fi
5266 fi
5267
5268 ##########################################
5269 # check for usable __NR_keyctl syscall
5270
5271 if test "$linux" = "yes" ; then
5272
5273     have_keyring=no
5274     cat > $TMPC << EOF
5275 #include <errno.h>
5276 #include <asm/unistd.h>
5277 #include <linux/keyctl.h>
5278 #include <unistd.h>
5279 int main(void) {
5280     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5281 }
5282 EOF
5283     if compile_prog "" "" ; then
5284         have_keyring=yes
5285     fi
5286 fi
5287 if test "$secret_keyring" != "no"
5288 then
5289     if test "$have_keyring" = "yes"
5290     then
5291         secret_keyring=yes
5292     else
5293         if test "$secret_keyring" = "yes"
5294         then
5295             error_exit "syscall __NR_keyctl requested, \
5296 but not implemented on your system"
5297         else
5298             secret_keyring=no
5299         fi
5300     fi
5301 fi
5302
5303 ##########################################
5304 # End of CC checks
5305 # After here, no more $cc or $ld runs
5306
5307 write_c_skeleton
5308
5309 if test "$gcov" = "yes" ; then
5310   :
5311 elif test "$fortify_source" = "yes" ; then
5312   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5313   debug=no
5314 fi
5315
5316 case "$ARCH" in
5317 alpha)
5318   # Ensure there's only a single GP
5319   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5320 ;;
5321 esac
5322
5323 if test "$gprof" = "yes" ; then
5324   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5325   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5326 fi
5327
5328 if test "$have_asan" = "yes"; then
5329   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5330   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5331   if test "$have_asan_iface_h" = "no" ; then
5332       echo "ASAN build enabled, but ASAN header missing." \
5333            "Without code annotation, the report may be inferior."
5334   elif test "$have_asan_iface_fiber" = "no" ; then
5335       echo "ASAN build enabled, but ASAN header is too old." \
5336            "Without code annotation, the report may be inferior."
5337   fi
5338 fi
5339 if test "$have_tsan" = "yes" ; then
5340   if test "$have_tsan_iface_fiber" = "yes" ; then
5341     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5342     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5343   else
5344     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5345   fi
5346 elif test "$tsan" = "yes" ; then
5347   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5348 fi
5349 if test "$have_ubsan" = "yes"; then
5350   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5351   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5352 fi
5353
5354 ##########################################
5355
5356 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5357 if test "$solaris" = "no" && test "$tsan" = "no"; then
5358     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5359         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5360     fi
5361 fi
5362
5363 # Use ASLR, no-SEH and DEP if available
5364 if test "$mingw32" = "yes" ; then
5365     flags="--no-seh --nxcompat"
5366
5367     # Disable ASLR for debug builds to allow debugging with gdb
5368     if test "$debug" = "no" ; then
5369         flags="--dynamicbase $flags"
5370     fi
5371
5372     for flag in $flags; do
5373         if ld_has $flag ; then
5374             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5375         fi
5376     done
5377 fi
5378
5379 # We can only support ivshmem if we have eventfd
5380 if [ "$eventfd" = "yes" ]; then
5381   ivshmem=yes
5382 fi
5383
5384 # Probe for guest agent support/options
5385
5386 if [ "$guest_agent" != "no" ]; then
5387   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5388       guest_agent=no
5389   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5390       guest_agent=yes
5391   elif [ "$guest_agent" != yes ]; then
5392       guest_agent=no
5393   else
5394       error_exit "Guest agent is not supported on this platform"
5395   fi
5396 fi
5397
5398 # Guest agent Windows MSI package
5399
5400 if test "$QEMU_GA_MANUFACTURER" = ""; then
5401   QEMU_GA_MANUFACTURER=QEMU
5402 fi
5403 if test "$QEMU_GA_DISTRO" = ""; then
5404   QEMU_GA_DISTRO=Linux
5405 fi
5406 if test "$QEMU_GA_VERSION" = ""; then
5407     QEMU_GA_VERSION=$(cat $source_path/VERSION)
5408 fi
5409
5410 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
5411
5412 # Mac OS X ships with a broken assembler
5413 roms=
5414 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5415         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5416         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5417     # Different host OS linkers have different ideas about the name of the ELF
5418     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5419     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5420     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5421         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5422             ld_i386_emulation="$emu"
5423             roms="optionrom"
5424             break
5425         fi
5426     done
5427 fi
5428
5429 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5430 # or -march=z10 (which is the lowest architecture level that Clang supports)
5431 if test "$cpu" = "s390x" ; then
5432   write_c_skeleton
5433   compile_prog "-march=z900" ""
5434   has_z900=$?
5435   if [ $has_z900 = 0 ] || compile_prog "-march=z10" ""; then
5436     if [ $has_z900 != 0 ]; then
5437       echo "WARNING: Your compiler does not support the z900!"
5438       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
5439     fi
5440     roms="$roms s390-ccw"
5441     # SLOF is required for building the s390-ccw firmware on s390x,
5442     # since it is using the libnet code from SLOF for network booting.
5443     git_submodules="${git_submodules} roms/SLOF"
5444   fi
5445 fi
5446
5447 # Check that the C++ compiler exists and works with the C compiler.
5448 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5449 if has $cxx; then
5450     cat > $TMPC <<EOF
5451 int c_function(void);
5452 int main(void) { return c_function(); }
5453 EOF
5454
5455     compile_object
5456
5457     cat > $TMPCXX <<EOF
5458 extern "C" {
5459    int c_function(void);
5460 }
5461 int c_function(void) { return 42; }
5462 EOF
5463
5464     update_cxxflags
5465
5466     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5467         # C++ compiler $cxx works ok with C compiler $cc
5468         :
5469     else
5470         echo "C++ compiler $cxx does not work with C compiler $cc"
5471         echo "Disabling C++ specific optional code"
5472         cxx=
5473     fi
5474 else
5475     echo "No C++ compiler available; disabling C++ specific optional code"
5476     cxx=
5477 fi
5478
5479 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
5480     exit 1
5481 fi
5482
5483 config_host_mak="config-host.mak"
5484
5485 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5486 echo >> $config_host_mak
5487
5488 echo all: >> $config_host_mak
5489 echo "GIT=$git" >> $config_host_mak
5490 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5491 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
5492
5493 echo "ARCH=$ARCH" >> $config_host_mak
5494
5495 if test "$debug_tcg" = "yes" ; then
5496   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5497 fi
5498 if test "$strip_opt" = "yes" ; then
5499   echo "STRIP=${strip}" >> $config_host_mak
5500 fi
5501 if test "$bigendian" = "yes" ; then
5502   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5503 fi
5504 if test "$mingw32" = "yes" ; then
5505   echo "CONFIG_WIN32=y" >> $config_host_mak
5506   if test "$guest_agent_with_vss" = "yes" ; then
5507     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5508     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5509     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5510   fi
5511   if test "$guest_agent_ntddscsi" = "yes" ; then
5512     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5513   fi
5514   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5515   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5516   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5517   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5518 else
5519   echo "CONFIG_POSIX=y" >> $config_host_mak
5520 fi
5521
5522 if test "$linux" = "yes" ; then
5523   echo "CONFIG_LINUX=y" >> $config_host_mak
5524 fi
5525
5526 if test "$darwin" = "yes" ; then
5527   echo "CONFIG_DARWIN=y" >> $config_host_mak
5528 fi
5529
5530 if test "$solaris" = "yes" ; then
5531   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5532 fi
5533 if test "$haiku" = "yes" ; then
5534   echo "CONFIG_HAIKU=y" >> $config_host_mak
5535 fi
5536 if test "$static" = "yes" ; then
5537   echo "CONFIG_STATIC=y" >> $config_host_mak
5538 fi
5539 if test "$profiler" = "yes" ; then
5540   echo "CONFIG_PROFILER=y" >> $config_host_mak
5541 fi
5542 if test "$want_tools" = "yes" ; then
5543   echo "CONFIG_TOOLS=y" >> $config_host_mak
5544 fi
5545 if test "$guest_agent" = "yes" ; then
5546   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5547 fi
5548 if test "$slirp_smbd" = "yes" ; then
5549   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
5550   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5551 fi
5552 if test "$vde" = "yes" ; then
5553   echo "CONFIG_VDE=y" >> $config_host_mak
5554   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5555 fi
5556 if test "$netmap" = "yes" ; then
5557   echo "CONFIG_NETMAP=y" >> $config_host_mak
5558 fi
5559 if test "$l2tpv3" = "yes" ; then
5560   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5561 fi
5562 if test "$gprof" = "yes" ; then
5563   echo "CONFIG_GPROF=y" >> $config_host_mak
5564 fi
5565 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5566 for drv in $audio_drv_list; do
5567     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5568     echo "$def=y" >> $config_host_mak
5569 done
5570 if test "$alsa" = "yes" ; then
5571     echo "CONFIG_ALSA=y" >> $config_host_mak
5572 fi
5573 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5574 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5575 if test "$libpulse" = "yes" ; then
5576     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5577 fi
5578 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5579 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5580 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5581 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5582 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5583 if test "$libjack" = "yes" ; then
5584     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5585 fi
5586 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5587 if test "$audio_win_int" = "yes" ; then
5588   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5589 fi
5590 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5591 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5592 if test "$xfs" = "yes" ; then
5593   echo "CONFIG_XFS=y" >> $config_host_mak
5594 fi
5595 qemu_version=$(head $source_path/VERSION)
5596 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5597 echo "SRC_PATH=$source_path" >> $config_host_mak
5598 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5599 if test "$modules" = "yes"; then
5600   # $shacmd can generate a hash started with digit, which the compiler doesn't
5601   # like as an symbol. So prefix it with an underscore
5602   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5603   echo "CONFIG_MODULES=y" >> $config_host_mak
5604 fi
5605 if test "$module_upgrades" = "yes"; then
5606   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5607 fi
5608 if test "$pipe2" = "yes" ; then
5609   echo "CONFIG_PIPE2=y" >> $config_host_mak
5610 fi
5611 if test "$accept4" = "yes" ; then
5612   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5613 fi
5614 if test "$splice" = "yes" ; then
5615   echo "CONFIG_SPLICE=y" >> $config_host_mak
5616 fi
5617 if test "$eventfd" = "yes" ; then
5618   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5619 fi
5620 if test "$memfd" = "yes" ; then
5621   echo "CONFIG_MEMFD=y" >> $config_host_mak
5622 fi
5623 if test "$have_usbfs" = "yes" ; then
5624   echo "CONFIG_USBFS=y" >> $config_host_mak
5625 fi
5626 if test "$fallocate" = "yes" ; then
5627   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5628 fi
5629 if test "$fallocate_punch_hole" = "yes" ; then
5630   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5631 fi
5632 if test "$fallocate_zero_range" = "yes" ; then
5633   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5634 fi
5635 if test "$posix_fallocate" = "yes" ; then
5636   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5637 fi
5638 if test "$sync_file_range" = "yes" ; then
5639   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5640 fi
5641 if test "$fiemap" = "yes" ; then
5642   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5643 fi
5644 if test "$dup3" = "yes" ; then
5645   echo "CONFIG_DUP3=y" >> $config_host_mak
5646 fi
5647 if test "$ppoll" = "yes" ; then
5648   echo "CONFIG_PPOLL=y" >> $config_host_mak
5649 fi
5650 if test "$prctl_pr_set_timerslack" = "yes" ; then
5651   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5652 fi
5653 if test "$epoll" = "yes" ; then
5654   echo "CONFIG_EPOLL=y" >> $config_host_mak
5655 fi
5656 if test "$epoll_create1" = "yes" ; then
5657   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5658 fi
5659 if test "$sendfile" = "yes" ; then
5660   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5661 fi
5662 if test "$timerfd" = "yes" ; then
5663   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5664 fi
5665 if test "$setns" = "yes" ; then
5666   echo "CONFIG_SETNS=y" >> $config_host_mak
5667 fi
5668 if test "$clock_adjtime" = "yes" ; then
5669   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5670 fi
5671 if test "$syncfs" = "yes" ; then
5672   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5673 fi
5674 if test "$inotify" = "yes" ; then
5675   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5676 fi
5677 if test "$inotify1" = "yes" ; then
5678   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5679 fi
5680 if test "$sem_timedwait" = "yes" ; then
5681   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5682 fi
5683 if test "$strchrnul" = "yes" ; then
5684   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5685 fi
5686 if test "$st_atim" = "yes" ; then
5687   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5688 fi
5689 if test "$byteswap_h" = "yes" ; then
5690   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5691 fi
5692 if test "$bswap_h" = "yes" ; then
5693   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5694 fi
5695 if test "$gio" = "yes" ; then
5696     echo "CONFIG_GIO=y" >> $config_host_mak
5697     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5698     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5699 fi
5700 if test "$gdbus_codegen" != "" ; then
5701     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5702 fi
5703 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5704 if test "$gnutls" = "yes" ; then
5705   echo "CONFIG_GNUTLS=y" >> $config_host_mak
5706   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
5707   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
5708 fi
5709 if test "$gcrypt" = "yes" ; then
5710   echo "CONFIG_GCRYPT=y" >> $config_host_mak
5711   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
5712   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
5713 fi
5714 if test "$nettle" = "yes" ; then
5715   echo "CONFIG_NETTLE=y" >> $config_host_mak
5716   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
5717   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
5718 fi
5719 if test "$qemu_private_xts" = "yes" ; then
5720   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
5721 fi
5722 if test "$tasn1" = "yes" ; then
5723   echo "CONFIG_TASN1=y" >> $config_host_mak
5724 fi
5725 if test "$auth_pam" = "yes" ; then
5726     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
5727 fi
5728 if test "$have_broken_size_max" = "yes" ; then
5729     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5730 fi
5731 if test "$have_openpty" = "yes" ; then
5732     echo "HAVE_OPENPTY=y" >> $config_host_mak
5733 fi
5734
5735 # Work around a system header bug with some kernel/XFS header
5736 # versions where they both try to define 'struct fsxattr':
5737 # xfs headers will not try to redefine structs from linux headers
5738 # if this macro is set.
5739 if test "$have_fsxattr" = "yes" ; then
5740     echo "HAVE_FSXATTR=y" >> $config_host_mak
5741 fi
5742 if test "$have_copy_file_range" = "yes" ; then
5743     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5744 fi
5745 if test "$vte" = "yes" ; then
5746   echo "CONFIG_VTE=y" >> $config_host_mak
5747   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
5748   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
5749 fi
5750 if test "$virglrenderer" = "yes" ; then
5751   echo "CONFIG_VIRGL=y" >> $config_host_mak
5752   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
5753   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
5754 fi
5755 if test "$xen" = "enabled" ; then
5756   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5757   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5758   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5759   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5760 fi
5761 if test "$linux_aio" = "yes" ; then
5762   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5763 fi
5764 if test "$linux_io_uring" = "yes" ; then
5765   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
5766   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
5767   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
5768 fi
5769 if test "$vhost_scsi" = "yes" ; then
5770   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5771 fi
5772 if test "$vhost_net" = "yes" ; then
5773   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5774 fi
5775 if test "$vhost_net_user" = "yes" ; then
5776   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5777 fi
5778 if test "$vhost_net_vdpa" = "yes" ; then
5779   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5780 fi
5781 if test "$vhost_crypto" = "yes" ; then
5782   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5783 fi
5784 if test "$vhost_vsock" = "yes" ; then
5785   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5786   if test "$vhost_user" = "yes" ; then
5787     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5788   fi
5789 fi
5790 if test "$vhost_kernel" = "yes" ; then
5791   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5792 fi
5793 if test "$vhost_user" = "yes" ; then
5794   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5795 fi
5796 if test "$vhost_vdpa" = "yes" ; then
5797   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5798 fi
5799 if test "$vhost_user_fs" = "yes" ; then
5800   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5801 fi
5802 if test "$iovec" = "yes" ; then
5803   echo "CONFIG_IOVEC=y" >> $config_host_mak
5804 fi
5805 if test "$membarrier" = "yes" ; then
5806   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5807 fi
5808 if test "$signalfd" = "yes" ; then
5809   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5810 fi
5811 if test "$optreset" = "yes" ; then
5812   echo "HAVE_OPTRESET=y" >> $config_host_mak
5813 fi
5814 if test "$fdatasync" = "yes" ; then
5815   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5816 fi
5817 if test "$madvise" = "yes" ; then
5818   echo "CONFIG_MADVISE=y" >> $config_host_mak
5819 fi
5820 if test "$posix_madvise" = "yes" ; then
5821   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5822 fi
5823 if test "$posix_memalign" = "yes" ; then
5824   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5825 fi
5826
5827 if test "$spice_protocol" = "yes" ; then
5828   echo "CONFIG_SPICE_PROTOCOL=y" >> $config_host_mak
5829   echo "SPICE_PROTOCOL_CFLAGS=$spice_protocol_cflags" >> $config_host_mak
5830 fi
5831 if test "$spice" = "yes" ; then
5832   echo "CONFIG_SPICE=y" >> $config_host_mak
5833   echo "SPICE_CFLAGS=$spice_cflags $spice_protocol_cflags" >> $config_host_mak
5834   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5835 fi
5836
5837 if test "$smartcard" = "yes" ; then
5838   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
5839   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
5840   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
5841 fi
5842
5843 if test "$libusb" = "yes" ; then
5844   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
5845   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
5846   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
5847 fi
5848
5849 if test "$usb_redir" = "yes" ; then
5850   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
5851   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
5852   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
5853 fi
5854
5855 if test "$opengl" = "yes" ; then
5856   echo "CONFIG_OPENGL=y" >> $config_host_mak
5857   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5858   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5859 fi
5860
5861 if test "$gbm" = "yes" ; then
5862     echo "CONFIG_GBM=y" >> $config_host_mak
5863     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5864     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5865 fi
5866
5867
5868 if test "$avx2_opt" = "yes" ; then
5869   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5870 fi
5871
5872 if test "$avx512f_opt" = "yes" ; then
5873   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5874 fi
5875
5876 # XXX: suppress that
5877 if [ "$bsd" = "yes" ] ; then
5878   echo "CONFIG_BSD=y" >> $config_host_mak
5879 fi
5880
5881 if test "$qom_cast_debug" = "yes" ; then
5882   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5883 fi
5884
5885 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5886 if test "$coroutine_pool" = "yes" ; then
5887   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5888 else
5889   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5890 fi
5891
5892 if test "$debug_stack_usage" = "yes" ; then
5893   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5894 fi
5895
5896 if test "$crypto_afalg" = "yes" ; then
5897   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5898 fi
5899
5900 if test "$open_by_handle_at" = "yes" ; then
5901   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5902 fi
5903
5904 if test "$linux_magic_h" = "yes" ; then
5905   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5906 fi
5907
5908 if test "$valgrind_h" = "yes" ; then
5909   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5910 fi
5911
5912 if test "$have_asan_iface_fiber" = "yes" ; then
5913     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5914 fi
5915
5916 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5917     echo "CONFIG_TSAN=y" >> $config_host_mak
5918 fi
5919
5920 if test "$has_environ" = "yes" ; then
5921   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5922 fi
5923
5924 if test "$cpuid_h" = "yes" ; then
5925   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5926 fi
5927
5928 if test "$int128" = "yes" ; then
5929   echo "CONFIG_INT128=y" >> $config_host_mak
5930 fi
5931
5932 if test "$atomic128" = "yes" ; then
5933   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5934 fi
5935
5936 if test "$cmpxchg128" = "yes" ; then
5937   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5938 fi
5939
5940 if test "$atomic64" = "yes" ; then
5941   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5942 fi
5943
5944 if test "$getauxval" = "yes" ; then
5945   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5946 fi
5947
5948 if test "$libssh" = "yes" ; then
5949   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5950   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5951   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5952 fi
5953
5954 if test "$live_block_migration" = "yes" ; then
5955   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5956 fi
5957
5958 if test "$tpm" = "yes"; then
5959   echo 'CONFIG_TPM=y' >> $config_host_mak
5960 fi
5961
5962 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5963 if have_backend "nop"; then
5964   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
5965 fi
5966 if have_backend "simple"; then
5967   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
5968   # Set the appropriate trace file.
5969   trace_file="\"$trace_file-\" FMT_pid"
5970 fi
5971 if have_backend "log"; then
5972   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
5973 fi
5974 if have_backend "ust"; then
5975   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
5976   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
5977   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
5978 fi
5979 if have_backend "dtrace"; then
5980   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
5981   if test "$trace_backend_stap" = "yes" ; then
5982     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
5983   fi
5984 fi
5985 if have_backend "ftrace"; then
5986   if test "$linux" = "yes" ; then
5987     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
5988   else
5989     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
5990   fi
5991 fi
5992 if have_backend "syslog"; then
5993   if test "$posix_syslog" = "yes" ; then
5994     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
5995   else
5996     feature_not_found "syslog(trace backend)" "syslog not available"
5997   fi
5998 fi
5999 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6000
6001 if test "$rdma" = "yes" ; then
6002   echo "CONFIG_RDMA=y" >> $config_host_mak
6003   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6004 fi
6005
6006 if test "$pvrdma" = "yes" ; then
6007   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6008 fi
6009
6010 if test "$have_rtnetlink" = "yes" ; then
6011   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6012 fi
6013
6014 if test "$libxml2" = "yes" ; then
6015   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6016   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6017   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6018 fi
6019
6020 if test "$replication" = "yes" ; then
6021   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6022 fi
6023
6024 if test "$have_af_vsock" = "yes" ; then
6025   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6026 fi
6027
6028 if test "$have_sysmacros" = "yes" ; then
6029   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6030 fi
6031
6032 if test "$have_static_assert" = "yes" ; then
6033   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6034 fi
6035
6036 if test "$have_utmpx" = "yes" ; then
6037   echo "HAVE_UTMPX=y" >> $config_host_mak
6038 fi
6039 if test "$have_getrandom" = "yes" ; then
6040   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6041 fi
6042 if test "$ivshmem" = "yes" ; then
6043   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6044 fi
6045 if test "$debug_mutex" = "yes" ; then
6046   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6047 fi
6048
6049 # Hold two types of flag:
6050 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6051 #                                     a thread we have a handle to
6052 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6053 #                                     platform
6054 if test "$pthread_setname_np_w_tid" = "yes" ; then
6055   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6056   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6057 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6058   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6059   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6060 fi
6061
6062 if test "$libpmem" = "yes" ; then
6063   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6064   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6065   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6066 fi
6067
6068 if test "$libdaxctl" = "yes" ; then
6069   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6070   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6071 fi
6072
6073 if test "$bochs" = "yes" ; then
6074   echo "CONFIG_BOCHS=y" >> $config_host_mak
6075 fi
6076 if test "$cloop" = "yes" ; then
6077   echo "CONFIG_CLOOP=y" >> $config_host_mak
6078 fi
6079 if test "$dmg" = "yes" ; then
6080   echo "CONFIG_DMG=y" >> $config_host_mak
6081 fi
6082 if test "$qcow1" = "yes" ; then
6083   echo "CONFIG_QCOW1=y" >> $config_host_mak
6084 fi
6085 if test "$vdi" = "yes" ; then
6086   echo "CONFIG_VDI=y" >> $config_host_mak
6087 fi
6088 if test "$vvfat" = "yes" ; then
6089   echo "CONFIG_VVFAT=y" >> $config_host_mak
6090 fi
6091 if test "$qed" = "yes" ; then
6092   echo "CONFIG_QED=y" >> $config_host_mak
6093 fi
6094 if test "$parallels" = "yes" ; then
6095   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6096 fi
6097 if test "$have_mlockall" = "yes" ; then
6098   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6099 fi
6100 if test "$fuzzing" = "yes" ; then
6101   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6102   # needed CFLAGS have already been provided
6103   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6104     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
6105     # compiled code.
6106     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6107     # To build non-fuzzer binaries with --enable-fuzzing, link everything with
6108     # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
6109     # the fuzzer-related callbacks added by instrumentation.
6110     QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
6111     # For the actual fuzzer binaries, we need to link against the libfuzzer
6112     # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
6113     # rule for the fuzzer adds these to the link_args. They need to be
6114     # configurable, to support OSS-Fuzz
6115     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6116   else
6117     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6118   fi
6119 fi
6120
6121 if test "$plugins" = "yes" ; then
6122     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6123     # Copy the export object list to the build dir
6124     if test "$ld_dynamic_list" = "yes" ; then
6125         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6126         ld_symbols=qemu-plugins-ld.symbols
6127         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6128     elif test "$ld_exported_symbols_list" = "yes" ; then
6129         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6130         ld64_symbols=qemu-plugins-ld64.symbols
6131         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6132         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6133             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6134     else
6135         error_exit \
6136             "If \$plugins=yes, either \$ld_dynamic_list or " \
6137             "\$ld_exported_symbols_list should have been set to 'yes'."
6138     fi
6139 fi
6140
6141 if test -n "$gdb_bin"; then
6142     gdb_version=$($gdb_bin --version | head -n 1)
6143     if version_ge ${gdb_version##* } 9.1; then
6144         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6145     fi
6146 fi
6147
6148 if test "$secret_keyring" = "yes" ; then
6149   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6150 fi
6151
6152 echo "ROMS=$roms" >> $config_host_mak
6153 echo "MAKE=$make" >> $config_host_mak
6154 echo "PYTHON=$python" >> $config_host_mak
6155 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6156 echo "MESON=$meson" >> $config_host_mak
6157 echo "NINJA=$ninja" >> $config_host_mak
6158 echo "CC=$cc" >> $config_host_mak
6159 echo "HOST_CC=$host_cc" >> $config_host_mak
6160 if $iasl -h > /dev/null 2>&1; then
6161   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6162 fi
6163 echo "CXX=$cxx" >> $config_host_mak
6164 echo "OBJCC=$objcc" >> $config_host_mak
6165 echo "AR=$ar" >> $config_host_mak
6166 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6167 echo "AS=$as" >> $config_host_mak
6168 echo "CCAS=$ccas" >> $config_host_mak
6169 echo "CPP=$cpp" >> $config_host_mak
6170 echo "OBJCOPY=$objcopy" >> $config_host_mak
6171 echo "LD=$ld" >> $config_host_mak
6172 echo "RANLIB=$ranlib" >> $config_host_mak
6173 echo "NM=$nm" >> $config_host_mak
6174 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6175 echo "WINDRES=$windres" >> $config_host_mak
6176 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6177 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6178 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6179 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6180 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6181 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6182 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6183 echo "EXESUF=$EXESUF" >> $config_host_mak
6184 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6185 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6186 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6187 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6188 if test "$gcov" = "yes" ; then
6189   echo "CONFIG_GCOV=y" >> $config_host_mak
6190 fi
6191
6192 if test "$fuzzing" != "no"; then
6193     echo "CONFIG_FUZZ=y" >> $config_host_mak
6194 fi
6195 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6196
6197 if test "$rng_none" = "yes"; then
6198   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6199 fi
6200
6201 # use included Linux headers
6202 if test "$linux" = "yes" ; then
6203   mkdir -p linux-headers
6204   case "$cpu" in
6205   i386|x86_64|x32)
6206     linux_arch=x86
6207     ;;
6208   ppc|ppc64|ppc64le)
6209     linux_arch=powerpc
6210     ;;
6211   s390x)
6212     linux_arch=s390
6213     ;;
6214   aarch64)
6215     linux_arch=arm64
6216     ;;
6217   mips64)
6218     linux_arch=mips
6219     ;;
6220   *)
6221     # For most CPUs the kernel architecture name and QEMU CPU name match.
6222     linux_arch="$cpu"
6223     ;;
6224   esac
6225     # For non-KVM architectures we will not have asm headers
6226     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6227       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6228     fi
6229 fi
6230
6231 for target in $target_list; do
6232     target_dir="$target"
6233     target_name=$(echo $target | cut -d '-' -f 1)
6234     mkdir -p $target_dir
6235     case $target in
6236         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6237         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6238     esac
6239 done
6240
6241 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6242 if test "$default_targets" = "yes"; then
6243   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6244 fi
6245
6246 if test "$numa" = "yes"; then
6247   echo "CONFIG_NUMA=y" >> $config_host_mak
6248   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6249 fi
6250
6251 if test "$ccache_cpp2" = "yes"; then
6252   echo "export CCACHE_CPP2=y" >> $config_host_mak
6253 fi
6254
6255 if test "$safe_stack" = "yes"; then
6256   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6257 fi
6258
6259 # If we're using a separate build tree, set it up now.
6260 # DIRS are directories which we simply mkdir in the build tree;
6261 # LINKS are things to symlink back into the source tree
6262 # (these can be both files and directories).
6263 # Caution: do not add files or directories here using wildcards. This
6264 # will result in problems later if a new file matching the wildcard is
6265 # added to the source tree -- nothing will cause configure to be rerun
6266 # so the build tree will be missing the link back to the new file, and
6267 # tests might fail. Prefer to keep the relevant files in their own
6268 # directory and symlink the directory instead.
6269 # UNLINK is used to remove symlinks from older development versions
6270 # that might get into the way when doing "git update" without doing
6271 # a "make distclean" in between.
6272 DIRS="tests tests/tcg tests/qapi-schema tests/qtest/libqos"
6273 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6274 DIRS="$DIRS docs docs/interop fsdev scsi"
6275 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6276 DIRS="$DIRS roms/seabios"
6277 DIRS="$DIRS contrib/plugins/"
6278 LINKS="Makefile"
6279 LINKS="$LINKS tests/tcg/Makefile.target"
6280 LINKS="$LINKS pc-bios/optionrom/Makefile"
6281 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6282 LINKS="$LINKS roms/seabios/Makefile"
6283 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6284 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6285 LINKS="$LINKS tests/acceptance tests/data"
6286 LINKS="$LINKS tests/qemu-iotests/check"
6287 LINKS="$LINKS python"
6288 LINKS="$LINKS contrib/plugins/Makefile "
6289 UNLINK="pc-bios/keymaps"
6290 for bios_file in \
6291     $source_path/pc-bios/*.bin \
6292     $source_path/pc-bios/*.elf \
6293     $source_path/pc-bios/*.lid \
6294     $source_path/pc-bios/*.rom \
6295     $source_path/pc-bios/*.dtb \
6296     $source_path/pc-bios/*.img \
6297     $source_path/pc-bios/openbios-* \
6298     $source_path/pc-bios/u-boot.* \
6299     $source_path/pc-bios/edk2-*.fd.bz2 \
6300     $source_path/pc-bios/palcode-*
6301 do
6302     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6303 done
6304 mkdir -p $DIRS
6305 for f in $LINKS ; do
6306     if [ -e "$source_path/$f" ]; then
6307         symlink "$source_path/$f" "$f"
6308     fi
6309 done
6310 for f in $UNLINK ; do
6311     if [ -L "$f" ]; then
6312         rm -f "$f"
6313     fi
6314 done
6315
6316 (for i in $cross_cc_vars; do
6317   export $i
6318 done
6319 export target_list source_path use_containers ARCH
6320 $source_path/tests/tcg/configure.sh)
6321
6322 # temporary config to build submodules
6323 for rom in seabios; do
6324     config_mak=roms/$rom/config.mak
6325     echo "# Automatically generated by configure - do not modify" > $config_mak
6326     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6327     echo "AS=$as" >> $config_mak
6328     echo "CCAS=$ccas" >> $config_mak
6329     echo "CC=$cc" >> $config_mak
6330     echo "BCC=bcc" >> $config_mak
6331     echo "CPP=$cpp" >> $config_mak
6332     echo "OBJCOPY=objcopy" >> $config_mak
6333     echo "IASL=$iasl" >> $config_mak
6334     echo "LD=$ld" >> $config_mak
6335     echo "RANLIB=$ranlib" >> $config_mak
6336 done
6337
6338 if test "$skip_meson" = no; then
6339   cross="config-meson.cross.new"
6340   meson_quote() {
6341     echo "'$(echo $* | sed "s/ /','/g")'"
6342   }
6343
6344   echo "# Automatically generated by configure - do not modify" > $cross
6345   echo "[properties]" >> $cross
6346   test -z "$cxx" && echo "link_language = 'c'" >> $cross
6347   echo "[built-in options]" >> $cross
6348   echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6349   echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6350   echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6351   echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6352   echo "[binaries]" >> $cross
6353   echo "c = [$(meson_quote $cc)]" >> $cross
6354   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6355   test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
6356   echo "ar = [$(meson_quote $ar)]" >> $cross
6357   echo "nm = [$(meson_quote $nm)]" >> $cross
6358   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6359   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6360   if has $sdl2_config; then
6361     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6362   fi
6363   echo "strip = [$(meson_quote $strip)]" >> $cross
6364   echo "windres = [$(meson_quote $windres)]" >> $cross
6365   if test "$cross_compile" = "yes"; then
6366     cross_arg="--cross-file config-meson.cross"
6367     echo "[host_machine]" >> $cross
6368     if test "$mingw32" = "yes" ; then
6369         echo "system = 'windows'" >> $cross
6370     fi
6371     if test "$linux" = "yes" ; then
6372         echo "system = 'linux'" >> $cross
6373     fi
6374     if test "$darwin" = "yes" ; then
6375         echo "system = 'darwin'" >> $cross
6376     fi
6377     case "$ARCH" in
6378         i386)
6379             echo "cpu_family = 'x86'" >> $cross
6380             ;;
6381         x86_64)
6382             echo "cpu_family = 'x86_64'" >> $cross
6383             ;;
6384         ppc64le)
6385             echo "cpu_family = 'ppc64'" >> $cross
6386             ;;
6387         *)
6388             echo "cpu_family = '$ARCH'" >> $cross
6389             ;;
6390     esac
6391     echo "cpu = '$cpu'" >> $cross
6392     if test "$bigendian" = "yes" ; then
6393         echo "endian = 'big'" >> $cross
6394     else
6395         echo "endian = 'little'" >> $cross
6396     fi
6397   else
6398     cross_arg="--native-file config-meson.cross"
6399   fi
6400   mv $cross config-meson.cross
6401
6402   rm -rf meson-private meson-info meson-logs
6403   unset staticpic
6404   if ! version_ge "$($meson --version)" 0.56.0; then
6405     staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6406   fi
6407   NINJA=$ninja $meson setup \
6408         --prefix "$prefix" \
6409         --libdir "$libdir" \
6410         --libexecdir "$libexecdir" \
6411         --bindir "$bindir" \
6412         --includedir "$includedir" \
6413         --datadir "$datadir" \
6414         --mandir "$mandir" \
6415         --sysconfdir "$sysconfdir" \
6416         --localedir "$localedir" \
6417         --localstatedir "$local_statedir" \
6418         -Ddocdir="$docdir" \
6419         -Dqemu_firmwarepath="$firmwarepath" \
6420         -Dqemu_suffix="$qemu_suffix" \
6421         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6422         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6423         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6424         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6425         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6426         ${staticpic:+-Db_staticpic=$staticpic} \
6427         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6428         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6429         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6430         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf -Dnvmm=$nvmm \
6431         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6432         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6433         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6434         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6435         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6436         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6437         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6438         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse \
6439         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6440         -Dattr=$attr -Ddefault_devices=$default_devices \
6441         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6442         -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
6443         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi \
6444         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6445         -Dtcg_interpreter=$tcg_interpreter \
6446         $cross_arg \
6447         "$PWD" "$source_path"
6448
6449   if test "$?" -ne 0 ; then
6450       error_exit "meson setup failed"
6451   fi
6452 else
6453   if test -f meson-private/cmd_line.txt; then
6454     # Adjust old command line options whose type was changed
6455     # Avoids having to use "setup --wipe" when Meson is upgraded
6456     perl -i -ne '
6457       s/^gettext = true$/gettext = auto/;
6458       s/^gettext = false$/gettext = disabled/;
6459       print;' meson-private/cmd_line.txt
6460   fi
6461 fi
6462
6463 if test -n "${deprecated_features}"; then
6464     echo "Warning, deprecated features enabled."
6465     echo "Please see docs/system/deprecated.rst"
6466     echo "  features: ${deprecated_features}"
6467 fi
6468
6469 # Create list of config switches that should be poisoned in common code...
6470 # but filter out CONFIG_TCG and CONFIG_USER_ONLY which are special.
6471 target_configs_h=$(ls *-config-devices.h *-config-target.h 2>/dev/null)
6472 if test -n "$target_configs_h" ; then
6473     sed -n -e '/CONFIG_TCG/d' -e '/CONFIG_USER_ONLY/d' \
6474         -e '/^#define / { s///; s/ .*//; s/^/#pragma GCC poison /p; }' \
6475         $target_configs_h | sort -u > config-poison.h
6476 else
6477     :> config-poison.h
6478 fi
6479
6480 # Save the configure command line for later reuse.
6481 cat <<EOD >config.status
6482 #!/bin/sh
6483 # Generated by configure.
6484 # Run this file to recreate the current configuration.
6485 # Compiler output produced by configure, useful for debugging
6486 # configure, is in config.log if it exists.
6487 EOD
6488
6489 preserve_env() {
6490     envname=$1
6491
6492     eval envval=\$$envname
6493
6494     if test -n "$envval"
6495     then
6496         echo "$envname='$envval'" >> config.status
6497         echo "export $envname" >> config.status
6498     else
6499         echo "unset $envname" >> config.status
6500     fi
6501 }
6502
6503 # Preserve various env variables that influence what
6504 # features/build target configure will detect
6505 preserve_env AR
6506 preserve_env AS
6507 preserve_env CC
6508 preserve_env CPP
6509 preserve_env CXX
6510 preserve_env INSTALL
6511 preserve_env LD
6512 preserve_env LD_LIBRARY_PATH
6513 preserve_env LIBTOOL
6514 preserve_env MAKE
6515 preserve_env NM
6516 preserve_env OBJCOPY
6517 preserve_env PATH
6518 preserve_env PKG_CONFIG
6519 preserve_env PKG_CONFIG_LIBDIR
6520 preserve_env PKG_CONFIG_PATH
6521 preserve_env PYTHON
6522 preserve_env SDL2_CONFIG
6523 preserve_env SMBD
6524 preserve_env STRIP
6525 preserve_env WINDRES
6526
6527 printf "exec" >>config.status
6528 for i in "$0" "$@"; do
6529   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6530 done
6531 echo ' "$@"' >>config.status
6532 chmod +x config.status
6533
6534 rm -r "$TMPDIR1"