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}/${TMPB}.cxx"
  80 TMPM="${TMPDIR1}/${TMPB}.m"
  81 TMPE="${TMPDIR1}/${TMPB}.exe"
  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" $CPU_CFLAGS "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" $CPU_CFLAGS "$@"
 150 }
 151
 152 do_objc() {
 153     do_compiler "$objcc" $CPU_CFLAGS "$@"
 154 }
 155
 156 # Append $2 to the variable named $1, with space separation
 157 add_to() {
 158     eval $1=\${$1:+\"\$$1 \"}\$2
 159 }
 160
 161 update_cxxflags() {
 162     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 163     # options which some versions of GCC's C++ compiler complain about
 164     # because they only make sense for C programs.
 165     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 166     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 167     for arg in $QEMU_CFLAGS; do
 168         case $arg in
 169             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 170             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 171                 ;;
 172             *)
 173                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 174                 ;;
 175         esac
 176     done
 177 }
 178
 179 compile_object() {
 180   local_cflags="$1"
 181   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 182 }
 183
 184 compile_prog() {
 185   local_cflags="$1"
 186   local_ldflags="$2"
 187   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 188       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 189 }
 190
 191 # symbolically link $1 to $2.  Portable version of "ln -sf".
 192 symlink() {
 193   rm -rf "$2"
 194   mkdir -p "$(dirname "$2")"
 195   ln -s "$1" "$2"
 196 }
 197
 198 # check whether a command is available to this shell (may be either an
 199 # executable or a builtin)
 200 has() {
 201     type "$1" >/dev/null 2>&1
 202 }
 203
 204 version_ge () {
 205     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 206     local_ver2=$(echo "$2" | tr . ' ')
 207     while true; do
 208         set x $local_ver1
 209         local_first=${2-0}
 210         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 211         shift ${2:+2}
 212         local_ver1=$*
 213         set x $local_ver2
 214         # the second argument finished, the first must be greater or equal
 215         test $# = 1 && return 0
 216         test $local_first -lt $2 && return 1
 217         test $local_first -gt $2 && return 0
 218         shift ${2:+2}
 219         local_ver2=$*
 220     done
 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" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list="default"
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 debug_info="yes"
 248 lto="false"
 249 stack_protector=""
 250 safe_stack=""
 251 use_containers="yes"
 252 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 253
 254 if test -e "$source_path/.git"
 255 then
 256     git_submodules_action="update"
 257 else
 258     git_submodules_action="ignore"
 259 fi
 260
 261 git_submodules="ui/keycodemapdb"
 262 git="git"
 263
 264 # Don't accept a target_list environment variable.
 265 unset target_list
 266 unset target_list_exclude
 267
 268 # Default value for a variable defining feature "foo".
 269 #  * foo="no"  feature will only be used if --enable-foo arg is given
 270 #  * foo=""    feature will be searched for, and if found, will be used
 271 #              unless --disable-foo is given
 272 #  * foo="yes" this value will only be set by --enable-foo flag.
 273 #              feature will searched for,
 274 #              if not found, configure exits with error
 275 #
 276 # Always add --enable-foo and --disable-foo command line args.
 277 # Distributions want to ensure that several features are compiled in, and it
 278 # is impossible without a --enable-foo that exits if a feature is not found.
 279
 280 default_feature=""
 281 # parse CC options second
 282 for opt do
 283   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 284   case "$opt" in
 285       --without-default-features)
 286           default_feature="no"
 287   ;;
 288   esac
 289 done
 290
 291 EXTRA_CFLAGS=""
 292 EXTRA_CXXFLAGS=""
 293 EXTRA_OBJCFLAGS=""
 294 EXTRA_LDFLAGS=""
 295
 296 xen_ctrl_version="$default_feature"
 297 vhost_kernel="$default_feature"
 298 vhost_net="$default_feature"
 299 vhost_crypto="$default_feature"
 300 vhost_scsi="$default_feature"
 301 vhost_vsock="$default_feature"
 302 vhost_user="no"
 303 vhost_user_fs="$default_feature"
 304 vhost_vdpa="$default_feature"
 305 rdma="$default_feature"
 306 pvrdma="$default_feature"
 307 debug_tcg="no"
 308 debug="no"
 309 sanitizers="no"
 310 tsan="no"
 311 fortify_source="yes"
 312 gcov="no"
 313 EXESUF=""
 314 modules="no"
 315 module_upgrades="no"
 316 prefix="/usr/local"
 317 qemu_suffix="qemu"
 318 softmmu="yes"
 319 linux_user=""
 320 bsd_user=""
 321 pkgversion=""
 322 pie=""
 323 trace_file="trace"
 324 opengl="$default_feature"
 325 coroutine=""
 326 tls_priority="NORMAL"
 327 plugins="$default_feature"
 328 secret_keyring="$default_feature"
 329 meson=""
 330 meson_args=""
 331 ninja=""
 332 gio="$default_feature"
 333 skip_meson=no
 334
 335 # The following Meson options are handled manually (still they
 336 # are included in the automatically generated help message)
 337
 338 # 1. Track which submodules are needed
 339 if test "$default_feature" = no ; then
 340   capstone="disabled"
 341   slirp="disabled"
 342 else
 343   capstone="auto"
 344   slirp="auto"
 345 fi
 346 fdt="auto"
 347
 348 # 2. Support --with/--without option
 349 default_devices="true"
 350
 351 # 3. Automatically enable/disable other options
 352 tcg="enabled"
 353 cfi="false"
 354
 355 # 4. Detection partly done in configure
 356 xen=${default_feature:+disabled}
 357
 358 # parse CC options second
 359 for opt do
 360   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 361   case "$opt" in
 362   --cross-prefix=*) cross_prefix="$optarg"
 363                     cross_compile="yes"
 364   ;;
 365   --cc=*) CC="$optarg"
 366   ;;
 367   --cxx=*) CXX="$optarg"
 368   ;;
 369   --cpu=*) cpu="$optarg"
 370   ;;
 371   --extra-cflags=*)
 372     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 373     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 374     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 375     ;;
 376   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 377   ;;
 378   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 379   ;;
 380   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 381   ;;
 382   --enable-debug-info) debug_info="yes"
 383   ;;
 384   --disable-debug-info) debug_info="no"
 385   ;;
 386   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 387   ;;
 388   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 389                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 390                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 391   ;;
 392   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 393                 eval "cross_cc_${cc_arch}=\$optarg"
 394                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 395   ;;
 396   esac
 397 done
 398 # OS specific
 399 # Using uname is really, really broken.  Once we have the right set of checks
 400 # we can eliminate its usage altogether.
 401
 402 # Preferred compiler:
 403 #  ${CC} (if set)
 404 #  ${cross_prefix}gcc (if cross-prefix specified)
 405 #  system compiler
 406 if test -z "${CC}${cross_prefix}"; then
 407   cc="$host_cc"
 408 else
 409   cc="${CC-${cross_prefix}gcc}"
 410 fi
 411
 412 if test -z "${CXX}${cross_prefix}"; then
 413   cxx="c++"
 414 else
 415   cxx="${CXX-${cross_prefix}g++}"
 416 fi
 417
 418 ar="${AR-${cross_prefix}ar}"
 419 as="${AS-${cross_prefix}as}"
 420 ccas="${CCAS-$cc}"
 421 cpp="${CPP-$cc -E}"
 422 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 423 ld="${LD-${cross_prefix}ld}"
 424 ranlib="${RANLIB-${cross_prefix}ranlib}"
 425 nm="${NM-${cross_prefix}nm}"
 426 smbd="$SMBD"
 427 strip="${STRIP-${cross_prefix}strip}"
 428 windres="${WINDRES-${cross_prefix}windres}"
 429 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 430 query_pkg_config() {
 431     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 432 }
 433 pkg_config=query_pkg_config
 434 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 435
 436 # default flags for all hosts
 437 # We use -fwrapv to tell the compiler that we require a C dialect where
 438 # left shift of signed integers is well defined and has the expected
 439 # 2s-complement style results. (Both clang and gcc agree that it
 440 # provides these semantics.)
 441 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 442 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 443 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 444 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 445
 446 QEMU_LDFLAGS=
 447
 448 # Flags that are needed during configure but later taken care of by Meson
 449 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 450 CONFIGURE_LDFLAGS=
 451
 452
 453 check_define() {
 454 cat > $TMPC <<EOF
 455 #if !defined($1)
 456 #error $1 not defined
 457 #endif
 458 int main(void) { return 0; }
 459 EOF
 460   compile_object
 461 }
 462
 463 check_include() {
 464 cat > $TMPC <<EOF
 465 #include <$1>
 466 int main(void) { return 0; }
 467 EOF
 468   compile_object
 469 }
 470
 471 write_c_skeleton() {
 472     cat > $TMPC <<EOF
 473 int main(void) { return 0; }
 474 EOF
 475 }
 476
 477 if check_define __linux__ ; then
 478   targetos=linux
 479 elif check_define _WIN32 ; then
 480   targetos=windows
 481 elif check_define __OpenBSD__ ; then
 482   targetos=openbsd
 483 elif check_define __sun__ ; then
 484   targetos=sunos
 485 elif check_define __HAIKU__ ; then
 486   targetos=haiku
 487 elif check_define __FreeBSD__ ; then
 488   targetos=freebsd
 489 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 490   targetos=gnu/kfreebsd
 491 elif check_define __DragonFly__ ; then
 492   targetos=dragonfly
 493 elif check_define __NetBSD__; then
 494   targetos=netbsd
 495 elif check_define __APPLE__; then
 496   targetos=darwin
 497 else
 498   # This is a fatal error, but don't report it yet, because we
 499   # might be going to just print the --help text, or it might
 500   # be the result of a missing compiler.
 501   targetos=bogus
 502 fi
 503
 504 # OS specific
 505
 506 mingw32="no"
 507 bsd="no"
 508 linux="no"
 509 solaris="no"
 510 case $targetos in
 511 windows)
 512   mingw32="yes"
 513   plugins="no"
 514   pie="no"
 515 ;;
 516 gnu/kfreebsd)
 517   bsd="yes"
 518 ;;
 519 freebsd)
 520   bsd="yes"
 521   make="${MAKE-gmake}"
 522   # needed for kinfo_getvmmap(3) in libutil.h
 523 ;;
 524 dragonfly)
 525   bsd="yes"
 526   make="${MAKE-gmake}"
 527 ;;
 528 netbsd)
 529   bsd="yes"
 530   make="${MAKE-gmake}"
 531 ;;
 532 openbsd)
 533   bsd="yes"
 534   make="${MAKE-gmake}"
 535 ;;
 536 darwin)
 537   bsd="yes"
 538   darwin="yes"
 539   # Disable attempts to use ObjectiveC features in os/object.h since they
 540   # won't work when we're compiling with gcc as a C compiler.
 541   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 542 ;;
 543 sunos)
 544   solaris="yes"
 545   make="${MAKE-gmake}"
 546 # needed for CMSG_ macros in sys/socket.h
 547   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 548 # needed for TIOCWIN* defines in termios.h
 549   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 550   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 551   # Note that this check is broken for cross-compilation: if you're
 552   # cross-compiling to one of these OSes then you'll need to specify
 553   # the correct CPU with the --cpu option.
 554   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 555     cpu="x86_64"
 556   fi
 557 ;;
 558 haiku)
 559   pie="no"
 560   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 561 ;;
 562 linux)
 563   linux="yes"
 564   vhost_user=${default_feature:-yes}
 565 ;;
 566 esac
 567
 568 if test ! -z "$cpu" ; then
 569   # command line argument
 570   :
 571 elif check_define __i386__ ; then
 572   cpu="i386"
 573 elif check_define __x86_64__ ; then
 574   if check_define __ILP32__ ; then
 575     cpu="x32"
 576   else
 577     cpu="x86_64"
 578   fi
 579 elif check_define __sparc__ ; then
 580   if check_define __arch64__ ; then
 581     cpu="sparc64"
 582   else
 583     cpu="sparc"
 584   fi
 585 elif check_define _ARCH_PPC ; then
 586   if check_define _ARCH_PPC64 ; then
 587     if check_define _LITTLE_ENDIAN ; then
 588       cpu="ppc64le"
 589     else
 590       cpu="ppc64"
 591     fi
 592   else
 593     cpu="ppc"
 594   fi
 595 elif check_define __mips__ ; then
 596   cpu="mips"
 597 elif check_define __s390__ ; then
 598   if check_define __s390x__ ; then
 599     cpu="s390x"
 600   else
 601     cpu="s390"
 602   fi
 603 elif check_define __riscv ; then
 604   cpu="riscv"
 605 elif check_define __arm__ ; then
 606   cpu="arm"
 607 elif check_define __aarch64__ ; then
 608   cpu="aarch64"
 609 elif check_define __loongarch64 ; then
 610   cpu="loongarch64"
 611 else
 612   cpu=$(uname -m)
 613 fi
 614
 615 # Normalise host CPU name, set multilib cflags
 616 # Note that this case should only have supported host CPUs, not guests.
 617 case "$cpu" in
 618   armv*b|armv*l|arm)
 619     cpu="arm" ;;
 620
 621   i386|i486|i586|i686|i86pc|BePC)
 622     cpu="i386"
 623     CPU_CFLAGS="-m32" ;;
 624   x32)
 625     cpu="x86_64"
 626     CPU_CFLAGS="-mx32" ;;
 627   x86_64|amd64)
 628     cpu="x86_64"
 629     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 630     # If we truly care, we should simply detect this case at
 631     # runtime and generate the fallback to serial emulation.
 632     CPU_CFLAGS="-m64 -mcx16" ;;
 633
 634   mips*)
 635     cpu="mips" ;;
 636
 637   ppc)
 638     CPU_CFLAGS="-m32" ;;
 639   ppc64)
 640     CPU_CFLAGS="-m64 -mbig-endian" ;;
 641   ppc64le)
 642     cpu="ppc64"
 643     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 644
 645   s390)
 646     CPU_CFLAGS="-m31" ;;
 647   s390x)
 648     CPU_CFLAGS="-m64" ;;
 649
 650   sparc|sun4[cdmuv])
 651     cpu="sparc"
 652     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 653   sparc64)
 654     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 655 esac
 656
 657 : ${make=${MAKE-make}}
 658
 659 # We prefer python 3.x. A bare 'python' is traditionally
 660 # python 2.x, but some distros have it as python 3.x, so
 661 # we check that too
 662 python=
 663 explicit_python=no
 664 for binary in "${PYTHON-python3}" python
 665 do
 666     if has "$binary"
 667     then
 668         python=$(command -v "$binary")
 669         break
 670     fi
 671 done
 672
 673
 674 # Check for ancillary tools used in testing
 675 genisoimage=
 676 for binary in genisoimage mkisofs
 677 do
 678     if has $binary
 679     then
 680         genisoimage=$(command -v "$binary")
 681         break
 682     fi
 683 done
 684
 685 # Default objcc to clang if available, otherwise use CC
 686 if has clang; then
 687   objcc=clang
 688 else
 689   objcc="$cc"
 690 fi
 691
 692 if test "$mingw32" = "yes" ; then
 693   EXESUF=".exe"
 694   # MinGW needs -mthreads for TLS and macro _MT.
 695   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 696   write_c_skeleton;
 697   prefix="/qemu"
 698   qemu_suffix=""
 699 fi
 700
 701 werror=""
 702
 703 . $source_path/scripts/meson-buildoptions.sh
 704
 705 meson_options=
 706 meson_option_parse() {
 707   meson_options="$meson_options $(_meson_option_parse "$@")"
 708   if test $? -eq 1; then
 709     echo "ERROR: unknown option $1"
 710     echo "Try '$0 --help' for more information"
 711     exit 1
 712   fi
 713 }
 714
 715 for opt do
 716   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 717   case "$opt" in
 718   --help|-h) show_help=yes
 719   ;;
 720   --version|-V) exec cat $source_path/VERSION
 721   ;;
 722   --prefix=*) prefix="$optarg"
 723   ;;
 724   --interp-prefix=*) interp_prefix="$optarg"
 725   ;;
 726   --cross-prefix=*)
 727   ;;
 728   --cc=*)
 729   ;;
 730   --host-cc=*) host_cc="$optarg"
 731   ;;
 732   --cxx=*)
 733   ;;
 734   --iasl=*) iasl="$optarg"
 735   ;;
 736   --objcc=*) objcc="$optarg"
 737   ;;
 738   --make=*) make="$optarg"
 739   ;;
 740   --install=*)
 741   ;;
 742   --python=*) python="$optarg" ; explicit_python=yes
 743   ;;
 744   --sphinx-build=*) sphinx_build="$optarg"
 745   ;;
 746   --skip-meson) skip_meson=yes
 747   ;;
 748   --meson=*) meson="$optarg"
 749   ;;
 750   --ninja=*) ninja="$optarg"
 751   ;;
 752   --smbd=*) smbd="$optarg"
 753   ;;
 754   --extra-cflags=*)
 755   ;;
 756   --extra-cxxflags=*)
 757   ;;
 758   --extra-objcflags=*)
 759   ;;
 760   --extra-ldflags=*)
 761   ;;
 762   --enable-debug-info)
 763   ;;
 764   --disable-debug-info)
 765   ;;
 766   --cross-cc-*)
 767   ;;
 768   --enable-modules)
 769       modules="yes"
 770   ;;
 771   --disable-modules)
 772       modules="no"
 773   ;;
 774   --disable-module-upgrades) module_upgrades="no"
 775   ;;
 776   --enable-module-upgrades) module_upgrades="yes"
 777   ;;
 778   --cpu=*)
 779   ;;
 780   --target-list=*) target_list="$optarg"
 781                    if test "$target_list_exclude"; then
 782                        error_exit "Can't mix --target-list with --target-list-exclude"
 783                    fi
 784   ;;
 785   --target-list-exclude=*) target_list_exclude="$optarg"
 786                    if test "$target_list"; then
 787                        error_exit "Can't mix --target-list-exclude with --target-list"
 788                    fi
 789   ;;
 790   --with-trace-file=*) trace_file="$optarg"
 791   ;;
 792   --with-default-devices) default_devices="true"
 793   ;;
 794   --without-default-devices) default_devices="false"
 795   ;;
 796   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 797   ;;
 798   --with-devices-*) device_arch=${opt#--with-devices-};
 799                     device_arch=${device_arch%%=*}
 800                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 801                     if test -f "$cf"; then
 802                         device_archs="$device_archs $device_arch"
 803                         eval "devices_${device_arch}=\$optarg"
 804                     else
 805                         error_exit "File $cf does not exist"
 806                     fi
 807   ;;
 808   --without-default-features) # processed above
 809   ;;
 810   --enable-gcov) gcov="yes"
 811   ;;
 812   --static)
 813     static="yes"
 814     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 815   ;;
 816   --mandir=*) mandir="$optarg"
 817   ;;
 818   --bindir=*) bindir="$optarg"
 819   ;;
 820   --libdir=*) libdir="$optarg"
 821   ;;
 822   --libexecdir=*) libexecdir="$optarg"
 823   ;;
 824   --includedir=*) includedir="$optarg"
 825   ;;
 826   --datadir=*) datadir="$optarg"
 827   ;;
 828   --with-suffix=*) qemu_suffix="$optarg"
 829   ;;
 830   --docdir=*) docdir="$optarg"
 831   ;;
 832   --localedir=*) localedir="$optarg"
 833   ;;
 834   --sysconfdir=*) sysconfdir="$optarg"
 835   ;;
 836   --localstatedir=*) local_statedir="$optarg"
 837   ;;
 838   --firmwarepath=*) firmwarepath="$optarg"
 839   ;;
 840   --host=*|--build=*|\
 841   --disable-dependency-tracking|\
 842   --sbindir=*|--sharedstatedir=*|\
 843   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 844   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 845     # These switches are silently ignored, for compatibility with
 846     # autoconf-generated configure scripts. This allows QEMU's
 847     # configure to be used by RPM and similar macros that set
 848     # lots of directory switches by default.
 849   ;;
 850   --audio-drv-list=*) audio_drv_list="$optarg"
 851   ;;
 852   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 853   ;;
 854   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 855   ;;
 856   --enable-debug-tcg) debug_tcg="yes"
 857   ;;
 858   --disable-debug-tcg) debug_tcg="no"
 859   ;;
 860   --enable-debug)
 861       # Enable debugging options that aren't excessively noisy
 862       debug_tcg="yes"
 863       meson_option_parse --enable-debug-mutex ""
 864       debug="yes"
 865       fortify_source="no"
 866   ;;
 867   --enable-sanitizers) sanitizers="yes"
 868   ;;
 869   --disable-sanitizers) sanitizers="no"
 870   ;;
 871   --enable-tsan) tsan="yes"
 872   ;;
 873   --disable-tsan) tsan="no"
 874   ;;
 875   --disable-slirp) slirp="disabled"
 876   ;;
 877   --enable-slirp) slirp="enabled"
 878   ;;
 879   --enable-slirp=git) slirp="internal"
 880   ;;
 881   --enable-slirp=*) slirp="$optarg"
 882   ;;
 883   --disable-xen) xen="disabled"
 884   ;;
 885   --enable-xen) xen="enabled"
 886   ;;
 887   --disable-tcg) tcg="disabled"
 888                  plugins="no"
 889   ;;
 890   --enable-tcg) tcg="enabled"
 891   ;;
 892   --disable-system) softmmu="no"
 893   ;;
 894   --enable-system) softmmu="yes"
 895   ;;
 896   --disable-user)
 897       linux_user="no" ;
 898       bsd_user="no" ;
 899   ;;
 900   --enable-user) ;;
 901   --disable-linux-user) linux_user="no"
 902   ;;
 903   --enable-linux-user) linux_user="yes"
 904   ;;
 905   --disable-bsd-user) bsd_user="no"
 906   ;;
 907   --enable-bsd-user) bsd_user="yes"
 908   ;;
 909   --enable-pie) pie="yes"
 910   ;;
 911   --disable-pie) pie="no"
 912   ;;
 913   --enable-werror) werror="yes"
 914   ;;
 915   --disable-werror) werror="no"
 916   ;;
 917   --enable-lto) lto="true"
 918   ;;
 919   --disable-lto) lto="false"
 920   ;;
 921   --enable-stack-protector) stack_protector="yes"
 922   ;;
 923   --disable-stack-protector) stack_protector="no"
 924   ;;
 925   --enable-safe-stack) safe_stack="yes"
 926   ;;
 927   --disable-safe-stack) safe_stack="no"
 928   ;;
 929   --enable-cfi)
 930       cfi="true";
 931       lto="true";
 932   ;;
 933   --disable-cfi) cfi="false"
 934   ;;
 935   --disable-fdt) fdt="disabled"
 936   ;;
 937   --enable-fdt) fdt="enabled"
 938   ;;
 939   --enable-fdt=git) fdt="internal"
 940   ;;
 941   --enable-fdt=*) fdt="$optarg"
 942   ;;
 943   --with-pkgversion=*) pkgversion="$optarg"
 944   ;;
 945   --with-coroutine=*) coroutine="$optarg"
 946   ;;
 947   --disable-vhost-net) vhost_net="no"
 948   ;;
 949   --enable-vhost-net) vhost_net="yes"
 950   ;;
 951   --disable-vhost-crypto) vhost_crypto="no"
 952   ;;
 953   --enable-vhost-crypto) vhost_crypto="yes"
 954   ;;
 955   --disable-vhost-scsi) vhost_scsi="no"
 956   ;;
 957   --enable-vhost-scsi) vhost_scsi="yes"
 958   ;;
 959   --disable-vhost-vsock) vhost_vsock="no"
 960   ;;
 961   --enable-vhost-vsock) vhost_vsock="yes"
 962   ;;
 963   --disable-vhost-user-fs) vhost_user_fs="no"
 964   ;;
 965   --enable-vhost-user-fs) vhost_user_fs="yes"
 966   ;;
 967   --disable-opengl) opengl="no"
 968   ;;
 969   --enable-opengl) opengl="yes"
 970   ;;
 971   --disable-zlib-test)
 972   ;;
 973   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
 974       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
 975   ;;
 976   --enable-vhdx|--disable-vhdx)
 977       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
 978   ;;
 979   --enable-uuid|--disable-uuid)
 980       echo "$0: $opt is obsolete, UUID support is always built" >&2
 981   ;;
 982   --tls-priority=*) tls_priority="$optarg"
 983   ;;
 984   --enable-rdma) rdma="yes"
 985   ;;
 986   --disable-rdma) rdma="no"
 987   ;;
 988   --enable-pvrdma) pvrdma="yes"
 989   ;;
 990   --disable-pvrdma) pvrdma="no"
 991   ;;
 992   --disable-vhost-user) vhost_user="no"
 993   ;;
 994   --enable-vhost-user) vhost_user="yes"
 995   ;;
 996   --disable-vhost-vdpa) vhost_vdpa="no"
 997   ;;
 998   --enable-vhost-vdpa) vhost_vdpa="yes"
 999   ;;
1000   --disable-vhost-kernel) vhost_kernel="no"
1001   ;;
1002   --enable-vhost-kernel) vhost_kernel="yes"
1003   ;;
1004   --disable-capstone) capstone="disabled"
1005   ;;
1006   --enable-capstone) capstone="enabled"
1007   ;;
1008   --enable-capstone=git) capstone="internal"
1009   ;;
1010   --enable-capstone=*) capstone="$optarg"
1011   ;;
1012   --with-git=*) git="$optarg"
1013   ;;
1014   --with-git-submodules=*)
1015       git_submodules_action="$optarg"
1016   ;;
1017   --enable-plugins) if test "$mingw32" = "yes"; then
1018                         error_exit "TCG plugins not currently supported on Windows platforms"
1019                     else
1020                         plugins="yes"
1021                     fi
1022   ;;
1023   --disable-plugins) plugins="no"
1024   ;;
1025   --enable-containers) use_containers="yes"
1026   ;;
1027   --disable-containers) use_containers="no"
1028   ;;
1029   --gdb=*) gdb_bin="$optarg"
1030   ;;
1031   --enable-keyring) secret_keyring="yes"
1032   ;;
1033   --disable-keyring) secret_keyring="no"
1034   ;;
1035   --enable-gio) gio=yes
1036   ;;
1037   --disable-gio) gio=no
1038   ;;
1039   # backwards compatibility options
1040   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
1041   ;;
1042   --disable-blobs) meson_option_parse --disable-install-blobs ""
1043   ;;
1044   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
1045   ;;
1046   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
1047   ;;
1048   # everything else has the same name in configure and meson
1049   --enable-* | --disable-*) meson_option_parse "$opt" "$optarg"
1050   ;;
1051   *)
1052       echo "ERROR: unknown option $opt"
1053       echo "Try '$0 --help' for more information"
1054       exit 1
1055   ;;
1056   esac
1057 done
1058
1059 # test for any invalid configuration combinations
1060 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
1061     error_exit "Can't enable plugins on non-TCG builds"
1062 fi
1063
1064 case $git_submodules_action in
1065     update|validate)
1066         if test ! -e "$source_path/.git"; then
1067             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1068             exit 1
1069         fi
1070     ;;
1071     ignore)
1072         if ! test -f "$source_path/ui/keycodemapdb/README"
1073         then
1074             echo
1075             echo "ERROR: missing GIT submodules"
1076             echo
1077             if test -e "$source_path/.git"; then
1078                 echo "--with-git-submodules=ignore specified but submodules were not"
1079                 echo "checked out.  Please initialize and update submodules."
1080             else
1081                 echo "This is not a GIT checkout but module content appears to"
1082                 echo "be missing. Do not use 'git archive' or GitHub download links"
1083                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1084                 echo "supported with source archives linked from:"
1085                 echo
1086                 echo "  https://www.qemu.org/download/#source"
1087                 echo
1088                 echo "Developers working with GIT can use scripts/archive-source.sh"
1089                 echo "if they need to create valid source archives."
1090             fi
1091             echo
1092             exit 1
1093         fi
1094     ;;
1095     *)
1096         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1097         exit 1
1098     ;;
1099 esac
1100
1101 libdir="${libdir:-$prefix/lib}"
1102 libexecdir="${libexecdir:-$prefix/libexec}"
1103 includedir="${includedir:-$prefix/include}"
1104
1105 if test "$mingw32" = "yes" ; then
1106     bindir="${bindir:-$prefix}"
1107 else
1108     bindir="${bindir:-$prefix/bin}"
1109 fi
1110 mandir="${mandir:-$prefix/share/man}"
1111 datadir="${datadir:-$prefix/share}"
1112 docdir="${docdir:-$prefix/share/doc}"
1113 sysconfdir="${sysconfdir:-$prefix/etc}"
1114 local_statedir="${local_statedir:-$prefix/var}"
1115 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1116 localedir="${localedir:-$datadir/locale}"
1117
1118 if eval test -z "\${cross_cc_$cpu}"; then
1119     eval "cross_cc_${cpu}=\$cc"
1120     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1121 fi
1122
1123 default_target_list=""
1124 mak_wilds=""
1125
1126 if [ "$linux_user" != no ]; then
1127     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1128         linux_user=yes
1129     elif [ "$linux_user" = yes ]; then
1130         error_exit "linux-user not supported on this architecture"
1131     fi
1132 fi
1133 if [ "$bsd_user" != no ]; then
1134     if [ "$bsd_user" = "" ]; then
1135         test $targetos = freebsd && bsd_user=yes
1136     fi
1137     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1138         error_exit "bsd-user not supported on this host OS"
1139     fi
1140 fi
1141 if [ "$softmmu" = "yes" ]; then
1142     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1143 fi
1144 if [ "$linux_user" = "yes" ]; then
1145     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1146 fi
1147 if [ "$bsd_user" = "yes" ]; then
1148     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1149 fi
1150
1151 for config in $mak_wilds; do
1152     target="$(basename "$config" .mak)"
1153     if echo "$target_list_exclude" | grep -vq "$target"; then
1154         default_target_list="${default_target_list} $target"
1155     fi
1156 done
1157
1158 if test x"$show_help" = x"yes" ; then
1159 cat << EOF
1160
1161 Usage: configure [options]
1162 Options: [defaults in brackets after descriptions]
1163
1164 Standard options:
1165   --help                   print this message
1166   --prefix=PREFIX          install in PREFIX [$prefix]
1167   --interp-prefix=PREFIX   where to find shared libraries, etc.
1168                            use %M for cpu name [$interp_prefix]
1169   --target-list=LIST       set target list (default: build all)
1170 $(echo Available targets: $default_target_list | \
1171   fold -s -w 53 | sed -e 's/^/                           /')
1172   --target-list-exclude=LIST exclude a set of targets from the default target-list
1173
1174 Advanced options (experts only):
1175   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1176   --cc=CC                  use C compiler CC [$cc]
1177   --iasl=IASL              use ACPI compiler IASL [$iasl]
1178   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1179                            build time
1180   --cxx=CXX                use C++ compiler CXX [$cxx]
1181   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1182   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1183   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1184   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
1185   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1186   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1187   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1188   --make=MAKE              use specified make [$make]
1189   --python=PYTHON          use specified python [$python]
1190   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1191   --meson=MESON            use specified meson [$meson]
1192   --ninja=NINJA            use specified ninja [$ninja]
1193   --smbd=SMBD              use specified smbd [$smbd]
1194   --with-git=GIT           use specified git [$git]
1195   --with-git-submodules=update   update git submodules (default if .git dir exists)
1196   --with-git-submodules=validate fail if git submodules are not up to date
1197   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1198   --static                 enable static build [$static]
1199   --mandir=PATH            install man pages in PATH
1200   --datadir=PATH           install firmware in PATH/$qemu_suffix
1201   --localedir=PATH         install translation in PATH/$qemu_suffix
1202   --docdir=PATH            install documentation in PATH/$qemu_suffix
1203   --bindir=PATH            install binaries in PATH
1204   --libdir=PATH            install libraries in PATH
1205   --libexecdir=PATH        install helper binaries in PATH
1206   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1207   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1208   --firmwarepath=PATH      search PATH for firmware files
1209   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1210   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1211   --with-pkgversion=VERS   use specified string as sub-version of the package
1212   --without-default-features default all --enable-* options to "disabled"
1213   --without-default-devices  do not include any device that is not needed to
1214                            start the emulator (only use if you are including
1215                            desired devices in configs/devices/)
1216   --with-devices-ARCH=NAME override default configs/devices
1217   --enable-debug           enable common debug build options
1218   --enable-sanitizers      enable default sanitizers
1219   --enable-tsan            enable thread sanitizer
1220   --disable-werror         disable compilation abort on warning
1221   --disable-stack-protector disable compiler-provided stack protection
1222   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1223   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1224   --block-drv-rw-whitelist=L
1225                            set block driver read-write whitelist
1226                            (by default affects only QEMU, not tools like qemu-img)
1227   --block-drv-ro-whitelist=L
1228                            set block driver read-only whitelist
1229                            (by default affects only QEMU, not tools like qemu-img)
1230   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1231                            Default:trace-<pid>
1232   --cpu=CPU                Build for host CPU [$cpu]
1233   --with-coroutine=BACKEND coroutine backend. Supported options:
1234                            ucontext, sigaltstack, windows
1235   --enable-gcov            enable test coverage analysis with gcov
1236   --tls-priority           default TLS protocol/cipher priority string
1237   --enable-plugins
1238                            enable plugins via shared library loading
1239   --disable-containers     don't use containers for cross-building
1240   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1241 EOF
1242   meson_options_help
1243 cat << EOF
1244   system          all system emulation targets
1245   user            supported user emulation targets
1246   linux-user      all linux usermode emulation targets
1247   bsd-user        all BSD usermode emulation targets
1248   pie             Position Independent Executables
1249   modules         modules support (non-Windows)
1250   module-upgrades try to load modules from alternate paths for upgrades
1251   debug-tcg       TCG debugging (default is disabled)
1252   debug-info      debugging information
1253   lto             Enable Link-Time Optimization.
1254   safe-stack      SafeStack Stack Smash Protection. Depends on
1255                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1256   rdma            Enable RDMA-based migration
1257   pvrdma          Enable PVRDMA support
1258   vhost-net       vhost-net kernel acceleration support
1259   vhost-vsock     virtio sockets device support
1260   vhost-scsi      vhost-scsi kernel target support
1261   vhost-crypto    vhost-user-crypto backend support
1262   vhost-kernel    vhost kernel backend support
1263   vhost-user      vhost-user backend support
1264   vhost-vdpa      vhost-vdpa kernel backend support
1265   opengl          opengl support
1266   gio             libgio support
1267
1268 NOTE: The object files are built at the place where configure is launched
1269 EOF
1270 exit 0
1271 fi
1272
1273 # Remove old dependency files to make sure that they get properly regenerated
1274 rm -f */config-devices.mak.d
1275
1276 if test -z "$python"
1277 then
1278     error_exit "Python not found. Use --python=/path/to/python"
1279 fi
1280 if ! has "$make"
1281 then
1282     error_exit "GNU make ($make) not found"
1283 fi
1284
1285 # Note that if the Python conditional here evaluates True we will exit
1286 # with status 1 which is a shell 'false' value.
1287 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1288   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1289       "Use --python=/path/to/python to specify a supported Python."
1290 fi
1291
1292 # Preserve python version since some functionality is dependent on it
1293 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)
1294
1295 # Suppress writing compiled files
1296 python="$python -B"
1297
1298 if test -z "$meson"; then
1299     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1300         meson=meson
1301     elif test $git_submodules_action != 'ignore' ; then
1302         meson=git
1303     elif test -e "${source_path}/meson/meson.py" ; then
1304         meson=internal
1305     else
1306         if test "$explicit_python" = yes; then
1307             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1308         else
1309             error_exit "Meson not found.  Use --meson=/path/to/meson"
1310         fi
1311     fi
1312 else
1313     # Meson uses its own Python interpreter to invoke other Python scripts,
1314     # but the user wants to use the one they specified with --python.
1315     #
1316     # We do not want to override the distro Python interpreter (and sometimes
1317     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1318     # just require --meson=git|internal together with --python.
1319     if test "$explicit_python" = yes; then
1320         case "$meson" in
1321             git | internal) ;;
1322             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1323         esac
1324     fi
1325 fi
1326
1327 if test "$meson" = git; then
1328     git_submodules="${git_submodules} meson"
1329 fi
1330
1331 case "$meson" in
1332     git | internal)
1333         meson="$python ${source_path}/meson/meson.py"
1334         ;;
1335     *) meson=$(command -v "$meson") ;;
1336 esac
1337
1338 # Probe for ninja
1339
1340 if test -z "$ninja"; then
1341     for c in ninja ninja-build samu; do
1342         if has $c; then
1343             ninja=$(command -v "$c")
1344             break
1345         fi
1346     done
1347     if test -z "$ninja"; then
1348       error_exit "Cannot find Ninja"
1349     fi
1350 fi
1351
1352 # Check that the C compiler works. Doing this here before testing
1353 # the host CPU ensures that we had a valid CC to autodetect the
1354 # $cpu var (and we should bail right here if that's not the case).
1355 # It also allows the help message to be printed without a CC.
1356 write_c_skeleton;
1357 if compile_object ; then
1358   : C compiler works ok
1359 else
1360     error_exit "\"$cc\" either does not exist or does not work"
1361 fi
1362 if ! compile_prog ; then
1363     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1364 fi
1365
1366 # Consult white-list to determine whether to enable werror
1367 # by default.  Only enable by default for git builds
1368 if test -z "$werror" ; then
1369     if test "$git_submodules_action" != "ignore" && \
1370         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1371         werror="yes"
1372     else
1373         werror="no"
1374     fi
1375 fi
1376
1377 if test "$targetos" = "bogus"; then
1378     # Now that we know that we're not printing the help and that
1379     # the compiler works (so the results of the check_defines we used
1380     # to identify the OS are reliable), if we didn't recognize the
1381     # host OS we should stop now.
1382     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1383 fi
1384
1385 # Check whether the compiler matches our minimum requirements:
1386 cat > $TMPC << EOF
1387 #if defined(__clang_major__) && defined(__clang_minor__)
1388 # ifdef __apple_build_version__
1389 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1390 #   error You need at least XCode Clang v10.0 to compile QEMU
1391 #  endif
1392 # else
1393 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1394 #   error You need at least Clang v6.0 to compile QEMU
1395 #  endif
1396 # endif
1397 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1398 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1399 #  error You need at least GCC v7.4.0 to compile QEMU
1400 # endif
1401 #else
1402 # error You either need GCC or Clang to compiler QEMU
1403 #endif
1404 int main (void) { return 0; }
1405 EOF
1406 if ! compile_prog "" "" ; then
1407     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1408 fi
1409
1410 # Accumulate -Wfoo and -Wno-bar separately.
1411 # We will list all of the enable flags first, and the disable flags second.
1412 # Note that we do not add -Werror, because that would enable it for all
1413 # configure tests. If a configure test failed due to -Werror this would
1414 # just silently disable some features, so it's too error prone.
1415
1416 warn_flags=
1417 add_to warn_flags -Wold-style-declaration
1418 add_to warn_flags -Wold-style-definition
1419 add_to warn_flags -Wtype-limits
1420 add_to warn_flags -Wformat-security
1421 add_to warn_flags -Wformat-y2k
1422 add_to warn_flags -Winit-self
1423 add_to warn_flags -Wignored-qualifiers
1424 add_to warn_flags -Wempty-body
1425 add_to warn_flags -Wnested-externs
1426 add_to warn_flags -Wendif-labels
1427 add_to warn_flags -Wexpansion-to-defined
1428 add_to warn_flags -Wimplicit-fallthrough=2
1429
1430 nowarn_flags=
1431 add_to nowarn_flags -Wno-initializer-overrides
1432 add_to nowarn_flags -Wno-missing-include-dirs
1433 add_to nowarn_flags -Wno-shift-negative-value
1434 add_to nowarn_flags -Wno-string-plus-int
1435 add_to nowarn_flags -Wno-typedef-redefinition
1436 add_to nowarn_flags -Wno-tautological-type-limit-compare
1437 add_to nowarn_flags -Wno-psabi
1438
1439 gcc_flags="$warn_flags $nowarn_flags"
1440
1441 cc_has_warning_flag() {
1442     write_c_skeleton;
1443
1444     # Use the positive sense of the flag when testing for -Wno-wombat
1445     # support (gcc will happily accept the -Wno- form of unknown
1446     # warning options).
1447     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1448     compile_prog "-Werror $optflag" ""
1449 }
1450
1451 objcc_has_warning_flag() {
1452     cat > $TMPM <<EOF
1453 int main(void) { return 0; }
1454 EOF
1455
1456     # Use the positive sense of the flag when testing for -Wno-wombat
1457     # support (gcc will happily accept the -Wno- form of unknown
1458     # warning options).
1459     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1460     do_objc -Werror $optflag \
1461       $OBJCFLAGS $EXTRA_OBJCFLAGS $CONFIGURE_OBJCFLAGS $QEMU_OBJCFLAGS \
1462       -o $TMPE $TMPM $QEMU_LDFLAGS
1463 }
1464
1465 for flag in $gcc_flags; do
1466     if cc_has_warning_flag $flag ; then
1467         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1468     fi
1469     if objcc_has_warning_flag $flag ; then
1470         QEMU_OBJCFLAGS="$QEMU_OBJCFLAGS $flag"
1471     fi
1472 done
1473
1474 if test "$stack_protector" != "no"; then
1475   cat > $TMPC << EOF
1476 int main(int argc, char *argv[])
1477 {
1478     char arr[64], *p = arr, *c = argv[0];
1479     while (*c) {
1480         *p++ = *c++;
1481     }
1482     return 0;
1483 }
1484 EOF
1485   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1486   sp_on=0
1487   for flag in $gcc_flags; do
1488     # We need to check both a compile and a link, since some compiler
1489     # setups fail only on a .c->.o compile and some only at link time
1490     if compile_object "-Werror $flag" &&
1491        compile_prog "-Werror $flag" ""; then
1492       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1493       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1494       sp_on=1
1495       break
1496     fi
1497   done
1498   if test "$stack_protector" = yes; then
1499     if test $sp_on = 0; then
1500       error_exit "Stack protector not supported"
1501     fi
1502   fi
1503 fi
1504
1505 # Disable -Wmissing-braces on older compilers that warn even for
1506 # the "universal" C zero initializer {0}.
1507 cat > $TMPC << EOF
1508 struct {
1509   int a[2];
1510 } x = {0};
1511 EOF
1512 if compile_object "-Werror" "" ; then
1513   :
1514 else
1515   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1516 fi
1517
1518 # Our module code doesn't support Windows
1519 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1520   error_exit "Modules are not available for Windows"
1521 fi
1522
1523 # module_upgrades is only reasonable if modules are enabled
1524 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
1525   error_exit "Can't enable module-upgrades as Modules are not enabled"
1526 fi
1527
1528 # Static linking is not possible with plugins, modules or PIE
1529 if test "$static" = "yes" ; then
1530   if test "$modules" = "yes" ; then
1531     error_exit "static and modules are mutually incompatible"
1532   fi
1533   if test "$plugins" = "yes"; then
1534     error_exit "static and plugins are mutually incompatible"
1535   else
1536     plugins="no"
1537   fi
1538 fi
1539 test "$plugins" = "" && plugins=yes
1540
1541 cat > $TMPC << EOF
1542
1543 #ifdef __linux__
1544 #  define THREAD __thread
1545 #else
1546 #  define THREAD
1547 #endif
1548 static THREAD int tls_var;
1549 int main(void) { return tls_var; }
1550 EOF
1551
1552 # Check we support -fno-pie and -no-pie first; we will need the former for
1553 # building ROMs, and both for everything if --disable-pie is passed.
1554 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1555   CFLAGS_NOPIE="-fno-pie"
1556   LDFLAGS_NOPIE="-no-pie"
1557 fi
1558
1559 if test "$static" = "yes"; then
1560   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1561     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1562     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1563     pie="yes"
1564   elif test "$pie" = "yes"; then
1565     error_exit "-static-pie not available due to missing toolchain support"
1566   else
1567     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1568     pie="no"
1569   fi
1570 elif test "$pie" = "no"; then
1571   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1572   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1573 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1574   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1575   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1576   pie="yes"
1577 elif test "$pie" = "yes"; then
1578   error_exit "PIE not available due to missing toolchain support"
1579 else
1580   echo "Disabling PIE due to missing toolchain support"
1581   pie="no"
1582 fi
1583
1584 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1585 # The combination is known as "full relro", because .got.plt is read-only too.
1586 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1587   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1588 fi
1589
1590 ##########################################
1591 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1592 # use i686 as default anyway, but for those that don't, an explicit
1593 # specification is necessary
1594
1595 if test "$cpu" = "i386"; then
1596   cat > $TMPC << EOF
1597 static int sfaa(int *ptr)
1598 {
1599   return __sync_fetch_and_and(ptr, 0);
1600 }
1601
1602 int main(void)
1603 {
1604   int val = 42;
1605   val = __sync_val_compare_and_swap(&val, 0, 1);
1606   sfaa(&val);
1607   return val;
1608 }
1609 EOF
1610   if ! compile_prog "" "" ; then
1611     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1612   fi
1613 fi
1614
1615 if test "$tcg" = "enabled"; then
1616     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1617     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1618 fi
1619
1620 if test -z "${target_list+xxx}" ; then
1621     default_targets=yes
1622     for target in $default_target_list; do
1623         target_list="$target_list $target"
1624     done
1625     target_list="${target_list# }"
1626 else
1627     default_targets=no
1628     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1629     for target in $target_list; do
1630         # Check that we recognised the target name; this allows a more
1631         # friendly error message than if we let it fall through.
1632         case " $default_target_list " in
1633             *" $target "*)
1634                 ;;
1635             *)
1636                 error_exit "Unknown target name '$target'"
1637                 ;;
1638         esac
1639     done
1640 fi
1641
1642 # see if system emulation was really requested
1643 case " $target_list " in
1644   *"-softmmu "*) softmmu=yes
1645   ;;
1646   *) softmmu=no
1647   ;;
1648 esac
1649
1650 feature_not_found() {
1651   feature=$1
1652   remedy=$2
1653
1654   error_exit "User requested feature $feature" \
1655       "configure was not able to find it." \
1656       "$remedy"
1657 }
1658
1659 # ---
1660 # big/little endian test
1661 cat > $TMPC << EOF
1662 #include <stdio.h>
1663 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1664 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1665 int main(int argc, char *argv[])
1666 {
1667     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1668 }
1669 EOF
1670
1671 if compile_prog ; then
1672     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1673         bigendian="yes"
1674     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1675         bigendian="no"
1676     else
1677         echo big/little test failed
1678         exit 1
1679     fi
1680 else
1681     echo big/little test failed
1682     exit 1
1683 fi
1684
1685 #########################################
1686 # vhost interdependencies and host support
1687
1688 # vhost backends
1689 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
1690   error_exit "vhost-user is not available on Windows"
1691 fi
1692 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1693 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1694   error_exit "vhost-vdpa is only available on Linux"
1695 fi
1696 test "$vhost_kernel" = "" && vhost_kernel=$linux
1697 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1698   error_exit "vhost-kernel is only available on Linux"
1699 fi
1700
1701 # vhost-kernel devices
1702 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1703 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1704   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1705 fi
1706 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1707 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1708   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1709 fi
1710
1711 # vhost-user backends
1712 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1713 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1714   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1715 fi
1716 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1717 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1718   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1719 fi
1720 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1721 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1722   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1723 fi
1724 #vhost-vdpa backends
1725 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1726 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1727   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1728 fi
1729
1730 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1731 if test "$vhost_net" = ""; then
1732   test "$vhost_net_user" = "yes" && vhost_net=yes
1733   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1734   test "$vhost_kernel" = "yes" && vhost_net=yes
1735 fi
1736
1737 ##########################################
1738 # pkg-config probe
1739
1740 if ! has "$pkg_config_exe"; then
1741   error_exit "pkg-config binary '$pkg_config_exe' not found"
1742 fi
1743
1744 ##########################################
1745 # xen probe
1746
1747 if test "$xen" != "disabled" ; then
1748   # Check whether Xen library path is specified via --extra-ldflags to avoid
1749   # overriding this setting with pkg-config output. If not, try pkg-config
1750   # to obtain all needed flags.
1751
1752   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
1753      $pkg_config --exists xencontrol ; then
1754     xen_ctrl_version="$(printf '%d%02d%02d' \
1755       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
1756     xen=enabled
1757     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
1758     xen_pc="$xen_pc xenevtchn xendevicemodel"
1759     if $pkg_config --exists xentoolcore; then
1760       xen_pc="$xen_pc xentoolcore"
1761     fi
1762     xen_cflags="$($pkg_config --cflags $xen_pc)"
1763     xen_libs="$($pkg_config --libs $xen_pc)"
1764   else
1765
1766     xen_libs="-lxenstore -lxenctrl"
1767     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
1768
1769     # First we test whether Xen headers and libraries are available.
1770     # If no, we are done and there is no Xen support.
1771     # If yes, more tests are run to detect the Xen version.
1772
1773     # Xen (any)
1774     cat > $TMPC <<EOF
1775 #include <xenctrl.h>
1776 int main(void) {
1777   return 0;
1778 }
1779 EOF
1780     if ! compile_prog "" "$xen_libs" ; then
1781       # Xen not found
1782       if test "$xen" = "enabled" ; then
1783         feature_not_found "xen" "Install xen devel"
1784       fi
1785       xen=disabled
1786
1787     # Xen unstable
1788     elif
1789         cat > $TMPC <<EOF &&
1790 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1791 #define __XEN_TOOLS__
1792 #include <xendevicemodel.h>
1793 #include <xenforeignmemory.h>
1794 int main(void) {
1795   xendevicemodel_handle *xd;
1796   xenforeignmemory_handle *xfmem;
1797
1798   xd = xendevicemodel_open(0, 0);
1799   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
1800
1801   xfmem = xenforeignmemory_open(0, 0);
1802   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
1803
1804   return 0;
1805 }
1806 EOF
1807         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1808       then
1809       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1810       xen_ctrl_version=41100
1811       xen=enabled
1812     elif
1813         cat > $TMPC <<EOF &&
1814 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1815 #include <xenforeignmemory.h>
1816 #include <xentoolcore.h>
1817 int main(void) {
1818   xenforeignmemory_handle *xfmem;
1819
1820   xfmem = xenforeignmemory_open(0, 0);
1821   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
1822   xentoolcore_restrict_all(0);
1823
1824   return 0;
1825 }
1826 EOF
1827         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1828       then
1829       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1830       xen_ctrl_version=41000
1831       xen=enabled
1832     elif
1833         cat > $TMPC <<EOF &&
1834 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1835 #define __XEN_TOOLS__
1836 #include <xendevicemodel.h>
1837 int main(void) {
1838   xendevicemodel_handle *xd;
1839
1840   xd = xendevicemodel_open(0, 0);
1841   xendevicemodel_close(xd);
1842
1843   return 0;
1844 }
1845 EOF
1846         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
1847       then
1848       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
1849       xen_ctrl_version=40900
1850       xen=enabled
1851     elif
1852         cat > $TMPC <<EOF &&
1853 /*
1854  * If we have stable libs the we don't want the libxc compat
1855  * layers, regardless of what CFLAGS we may have been given.
1856  *
1857  * Also, check if xengnttab_grant_copy_segment_t is defined and
1858  * grant copy operation is implemented.
1859  */
1860 #undef XC_WANT_COMPAT_EVTCHN_API
1861 #undef XC_WANT_COMPAT_GNTTAB_API
1862 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1863 #include <xenctrl.h>
1864 #include <xenstore.h>
1865 #include <xenevtchn.h>
1866 #include <xengnttab.h>
1867 #include <xenforeignmemory.h>
1868 #include <stdint.h>
1869 #include <xen/hvm/hvm_info_table.h>
1870 #if !defined(HVM_MAX_VCPUS)
1871 # error HVM_MAX_VCPUS not defined
1872 #endif
1873 int main(void) {
1874   xc_interface *xc = NULL;
1875   xenforeignmemory_handle *xfmem;
1876   xenevtchn_handle *xe;
1877   xengnttab_handle *xg;
1878   xengnttab_grant_copy_segment_t* seg = NULL;
1879
1880   xs_daemon_open();
1881
1882   xc = xc_interface_open(0, 0, 0);
1883   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1884   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1885   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1886   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1887
1888   xfmem = xenforeignmemory_open(0, 0);
1889   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1890
1891   xe = xenevtchn_open(0, 0);
1892   xenevtchn_fd(xe);
1893
1894   xg = xengnttab_open(0, 0);
1895   xengnttab_grant_copy(xg, 0, seg);
1896
1897   return 0;
1898 }
1899 EOF
1900         compile_prog "" "$xen_libs $xen_stable_libs"
1901       then
1902       xen_ctrl_version=40800
1903       xen=enabled
1904     elif
1905         cat > $TMPC <<EOF &&
1906 /*
1907  * If we have stable libs the we don't want the libxc compat
1908  * layers, regardless of what CFLAGS we may have been given.
1909  */
1910 #undef XC_WANT_COMPAT_EVTCHN_API
1911 #undef XC_WANT_COMPAT_GNTTAB_API
1912 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1913 #include <xenctrl.h>
1914 #include <xenstore.h>
1915 #include <xenevtchn.h>
1916 #include <xengnttab.h>
1917 #include <xenforeignmemory.h>
1918 #include <stdint.h>
1919 #include <xen/hvm/hvm_info_table.h>
1920 #if !defined(HVM_MAX_VCPUS)
1921 # error HVM_MAX_VCPUS not defined
1922 #endif
1923 int main(void) {
1924   xc_interface *xc = NULL;
1925   xenforeignmemory_handle *xfmem;
1926   xenevtchn_handle *xe;
1927   xengnttab_handle *xg;
1928
1929   xs_daemon_open();
1930
1931   xc = xc_interface_open(0, 0, 0);
1932   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1933   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1934   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1935   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1936
1937   xfmem = xenforeignmemory_open(0, 0);
1938   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
1939
1940   xe = xenevtchn_open(0, 0);
1941   xenevtchn_fd(xe);
1942
1943   xg = xengnttab_open(0, 0);
1944   xengnttab_map_grant_ref(xg, 0, 0, 0);
1945
1946   return 0;
1947 }
1948 EOF
1949         compile_prog "" "$xen_libs $xen_stable_libs"
1950       then
1951       xen_ctrl_version=40701
1952       xen=enabled
1953
1954     # Xen 4.6
1955     elif
1956         cat > $TMPC <<EOF &&
1957 #include <xenctrl.h>
1958 #include <xenstore.h>
1959 #include <stdint.h>
1960 #include <xen/hvm/hvm_info_table.h>
1961 #if !defined(HVM_MAX_VCPUS)
1962 # error HVM_MAX_VCPUS not defined
1963 #endif
1964 int main(void) {
1965   xc_interface *xc;
1966   xs_daemon_open();
1967   xc = xc_interface_open(0, 0, 0);
1968   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1969   xc_gnttab_open(NULL, 0);
1970   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1971   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1972   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
1973   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
1974   return 0;
1975 }
1976 EOF
1977         compile_prog "" "$xen_libs"
1978       then
1979       xen_ctrl_version=40600
1980       xen=enabled
1981
1982     # Xen 4.5
1983     elif
1984         cat > $TMPC <<EOF &&
1985 #include <xenctrl.h>
1986 #include <xenstore.h>
1987 #include <stdint.h>
1988 #include <xen/hvm/hvm_info_table.h>
1989 #if !defined(HVM_MAX_VCPUS)
1990 # error HVM_MAX_VCPUS not defined
1991 #endif
1992 int main(void) {
1993   xc_interface *xc;
1994   xs_daemon_open();
1995   xc = xc_interface_open(0, 0, 0);
1996   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1997   xc_gnttab_open(NULL, 0);
1998   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1999   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2000   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2001   return 0;
2002 }
2003 EOF
2004         compile_prog "" "$xen_libs"
2005       then
2006       xen_ctrl_version=40500
2007       xen=enabled
2008
2009     elif
2010         cat > $TMPC <<EOF &&
2011 #include <xenctrl.h>
2012 #include <xenstore.h>
2013 #include <stdint.h>
2014 #include <xen/hvm/hvm_info_table.h>
2015 #if !defined(HVM_MAX_VCPUS)
2016 # error HVM_MAX_VCPUS not defined
2017 #endif
2018 int main(void) {
2019   xc_interface *xc;
2020   xs_daemon_open();
2021   xc = xc_interface_open(0, 0, 0);
2022   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2023   xc_gnttab_open(NULL, 0);
2024   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2025   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2026   return 0;
2027 }
2028 EOF
2029         compile_prog "" "$xen_libs"
2030       then
2031       xen_ctrl_version=40200
2032       xen=enabled
2033
2034     else
2035       if test "$xen" = "enabled" ; then
2036         feature_not_found "xen (unsupported version)" \
2037                           "Install a supported xen (xen 4.2 or newer)"
2038       fi
2039       xen=disabled
2040     fi
2041
2042     if test "$xen" = enabled; then
2043       if test $xen_ctrl_version -ge 40701  ; then
2044         xen_libs="$xen_libs $xen_stable_libs "
2045       fi
2046     fi
2047   fi
2048 fi
2049
2050 ##########################################
2051 # RDMA needs OpenFabrics libraries
2052 if test "$rdma" != "no" ; then
2053   cat > $TMPC <<EOF
2054 #include <rdma/rdma_cma.h>
2055 int main(void) { return 0; }
2056 EOF
2057   rdma_libs="-lrdmacm -libverbs -libumad"
2058   if compile_prog "" "$rdma_libs" ; then
2059     rdma="yes"
2060   else
2061     if test "$rdma" = "yes" ; then
2062         error_exit \
2063             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2064             " Your options:" \
2065             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2066             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2067             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2068     fi
2069     rdma="no"
2070   fi
2071 fi
2072
2073 ##########################################
2074 # PVRDMA detection
2075
2076 cat > $TMPC <<EOF &&
2077 #include <sys/mman.h>
2078
2079 int
2080 main(void)
2081 {
2082     char buf = 0;
2083     void *addr = &buf;
2084     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2085
2086     return 0;
2087 }
2088 EOF
2089
2090 if test "$rdma" = "yes" ; then
2091     case "$pvrdma" in
2092     "")
2093         if compile_prog "" ""; then
2094             pvrdma="yes"
2095         else
2096             pvrdma="no"
2097         fi
2098         ;;
2099     "yes")
2100         if ! compile_prog "" ""; then
2101             error_exit "PVRDMA is not supported since mremap is not implemented"
2102         fi
2103         pvrdma="yes"
2104         ;;
2105     "no")
2106         pvrdma="no"
2107         ;;
2108     esac
2109 else
2110     if test "$pvrdma" = "yes" ; then
2111         error_exit "PVRDMA requires rdma suppport"
2112     fi
2113     pvrdma="no"
2114 fi
2115
2116 # Let's see if enhanced reg_mr is supported
2117 if test "$pvrdma" = "yes" ; then
2118
2119 cat > $TMPC <<EOF &&
2120 #include <infiniband/verbs.h>
2121
2122 int
2123 main(void)
2124 {
2125     struct ibv_mr *mr;
2126     struct ibv_pd *pd = NULL;
2127     size_t length = 10;
2128     uint64_t iova = 0;
2129     int access = 0;
2130     void *addr = NULL;
2131
2132     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2133
2134     ibv_dereg_mr(mr);
2135
2136     return 0;
2137 }
2138 EOF
2139     if ! compile_prog "" "-libverbs"; then
2140         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2141     fi
2142 fi
2143
2144 ##########################################
2145 # glib support probe
2146
2147 glib_req_ver=2.56
2148 glib_modules=gthread-2.0
2149 if test "$modules" = yes; then
2150     glib_modules="$glib_modules gmodule-export-2.0"
2151 elif test "$plugins" = "yes"; then
2152     glib_modules="$glib_modules gmodule-no-export-2.0"
2153 fi
2154
2155 for i in $glib_modules; do
2156     if $pkg_config --atleast-version=$glib_req_ver $i; then
2157         glib_cflags=$($pkg_config --cflags $i)
2158         glib_libs=$($pkg_config --libs $i)
2159     else
2160         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2161     fi
2162 done
2163
2164 # This workaround is required due to a bug in pkg-config file for glib as it
2165 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
2166
2167 if test "$static" = yes && test "$mingw32" = yes; then
2168     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
2169 fi
2170
2171 if ! test "$gio" = "no"; then
2172     pass=no
2173     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
2174         gio_cflags=$($pkg_config --cflags gio-2.0)
2175         gio_libs=$($pkg_config --libs gio-2.0)
2176         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
2177         if ! has "$gdbus_codegen"; then
2178             gdbus_codegen=
2179         fi
2180         # Check that the libraries actually work -- Ubuntu 18.04 ships
2181         # with pkg-config --static --libs data for gio-2.0 that is missing
2182         # -lblkid and will give a link error.
2183         cat > $TMPC <<EOF
2184 #include <gio/gio.h>
2185 int main(void)
2186 {
2187     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
2188     return 0;
2189 }
2190 EOF
2191         if compile_prog "$gio_cflags" "$gio_libs" ; then
2192             pass=yes
2193         else
2194             pass=no
2195         fi
2196
2197         if test "$pass" = "yes" &&
2198             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
2199             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
2200             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
2201         fi
2202     fi
2203
2204     if test "$pass" = "no"; then
2205         if test "$gio" = "yes"; then
2206             feature_not_found "gio" "Install libgio >= 2.0"
2207         else
2208             gio=no
2209         fi
2210     else
2211         gio=yes
2212     fi
2213 fi
2214
2215 # Sanity check that the current size_t matches the
2216 # size that glib thinks it should be. This catches
2217 # problems on multi-arch where people try to build
2218 # 32-bit QEMU while pointing at 64-bit glib headers
2219 cat > $TMPC <<EOF
2220 #include <glib.h>
2221 #include <unistd.h>
2222
2223 #define QEMU_BUILD_BUG_ON(x) \
2224   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
2225
2226 int main(void) {
2227    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
2228    return 0;
2229 }
2230 EOF
2231
2232 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
2233     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
2234                "You probably need to set PKG_CONFIG_LIBDIR"\
2235                "to point to the right pkg-config files for your"\
2236                "build target"
2237 fi
2238
2239 # Silence clang warnings triggered by glib < 2.57.2
2240 cat > $TMPC << EOF
2241 #include <glib.h>
2242 typedef struct Foo {
2243     int i;
2244 } Foo;
2245 static void foo_free(Foo *f)
2246 {
2247     g_free(f);
2248 }
2249 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free)
2250 int main(void) { return 0; }
2251 EOF
2252 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2253     if cc_has_warning_flag "-Wno-unused-function"; then
2254         glib_cflags="$glib_cflags -Wno-unused-function"
2255         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
2256     fi
2257 fi
2258
2259 ##########################################
2260 # SHA command probe for modules
2261 if test "$modules" = yes; then
2262     shacmd_probe="sha1sum sha1 shasum"
2263     for c in $shacmd_probe; do
2264         if has $c; then
2265             shacmd="$c"
2266             break
2267         fi
2268     done
2269     if test "$shacmd" = ""; then
2270         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2271     fi
2272 fi
2273
2274 ##########################################
2275 # fdt probe
2276
2277 case "$fdt" in
2278   auto | enabled | internal)
2279     # Simpler to always update submodule, even if not needed.
2280     git_submodules="${git_submodules} dtc"
2281     ;;
2282 esac
2283
2284 ##########################################
2285 # opengl probe (for sdl2, gtk)
2286
2287 if test "$opengl" != "no" ; then
2288   epoxy=no
2289   if $pkg_config epoxy; then
2290     cat > $TMPC << EOF
2291 #include <epoxy/egl.h>
2292 int main(void) { return 0; }
2293 EOF
2294     if compile_prog "" "" ; then
2295       epoxy=yes
2296     fi
2297   fi
2298
2299   if test "$epoxy" = "yes" ; then
2300     opengl_cflags="$($pkg_config --cflags epoxy)"
2301     opengl_libs="$($pkg_config --libs epoxy)"
2302     opengl=yes
2303   else
2304     if test "$opengl" = "yes" ; then
2305       feature_not_found "opengl" "Please install epoxy with EGL"
2306     fi
2307     opengl_cflags=""
2308     opengl_libs=""
2309     opengl=no
2310   fi
2311 fi
2312
2313 # check for usbfs
2314 have_usbfs=no
2315 if test "$linux_user" = "yes"; then
2316   cat > $TMPC << EOF
2317 #include <linux/usbdevice_fs.h>
2318
2319 #ifndef USBDEVFS_GET_CAPABILITIES
2320 #error "USBDEVFS_GET_CAPABILITIES undefined"
2321 #endif
2322
2323 #ifndef USBDEVFS_DISCONNECT_CLAIM
2324 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2325 #endif
2326
2327 int main(void)
2328 {
2329     return 0;
2330 }
2331 EOF
2332   if compile_prog "" ""; then
2333     have_usbfs=yes
2334   fi
2335 fi
2336
2337 ##########################################
2338 # capstone
2339
2340 case "$capstone" in
2341   auto | enabled | internal)
2342     # Simpler to always update submodule, even if not needed.
2343     git_submodules="${git_submodules} capstone"
2344     ;;
2345 esac
2346
2347 ##########################################
2348 # check and set a backend for coroutine
2349
2350 # We prefer ucontext, but it's not always possible. The fallback
2351 # is sigcontext. On Windows the only valid backend is the Windows
2352 # specific one.
2353
2354 ucontext_works=no
2355 if test "$darwin" != "yes"; then
2356   cat > $TMPC << EOF
2357 #include <ucontext.h>
2358 #ifdef __stub_makecontext
2359 #error Ignoring glibc stub makecontext which will always fail
2360 #endif
2361 int main(void) { makecontext(0, 0, 0); return 0; }
2362 EOF
2363   if compile_prog "" "" ; then
2364     ucontext_works=yes
2365   fi
2366 fi
2367
2368 if test "$coroutine" = ""; then
2369   if test "$mingw32" = "yes"; then
2370     coroutine=win32
2371   elif test "$ucontext_works" = "yes"; then
2372     coroutine=ucontext
2373   else
2374     coroutine=sigaltstack
2375   fi
2376 else
2377   case $coroutine in
2378   windows)
2379     if test "$mingw32" != "yes"; then
2380       error_exit "'windows' coroutine backend only valid for Windows"
2381     fi
2382     # Unfortunately the user visible backend name doesn't match the
2383     # coroutine-*.c filename for this case, so we have to adjust it here.
2384     coroutine=win32
2385     ;;
2386   ucontext)
2387     if test "$ucontext_works" != "yes"; then
2388       feature_not_found "ucontext"
2389     fi
2390     ;;
2391   sigaltstack)
2392     if test "$mingw32" = "yes"; then
2393       error_exit "only the 'windows' coroutine backend is valid for Windows"
2394     fi
2395     ;;
2396   *)
2397     error_exit "unknown coroutine backend $coroutine"
2398     ;;
2399   esac
2400 fi
2401
2402 ##################################################
2403 # SafeStack
2404
2405
2406 if test "$safe_stack" = "yes"; then
2407 cat > $TMPC << EOF
2408 int main(int argc, char *argv[])
2409 {
2410 #if ! __has_feature(safe_stack)
2411 #error SafeStack Disabled
2412 #endif
2413     return 0;
2414 }
2415 EOF
2416   flag="-fsanitize=safe-stack"
2417   # Check that safe-stack is supported and enabled.
2418   if compile_prog "-Werror $flag" "$flag"; then
2419     # Flag needed both at compilation and at linking
2420     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2421     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2422   else
2423     error_exit "SafeStack not supported by your compiler"
2424   fi
2425   if test "$coroutine" != "ucontext"; then
2426     error_exit "SafeStack is only supported by the coroutine backend ucontext"
2427   fi
2428 else
2429 cat > $TMPC << EOF
2430 int main(int argc, char *argv[])
2431 {
2432 #if defined(__has_feature)
2433 #if __has_feature(safe_stack)
2434 #error SafeStack Enabled
2435 #endif
2436 #endif
2437     return 0;
2438 }
2439 EOF
2440 if test "$safe_stack" = "no"; then
2441   # Make sure that safe-stack is disabled
2442   if ! compile_prog "-Werror" ""; then
2443     # SafeStack was already enabled, try to explicitly remove the feature
2444     flag="-fno-sanitize=safe-stack"
2445     if ! compile_prog "-Werror $flag" "$flag"; then
2446       error_exit "Configure cannot disable SafeStack"
2447     fi
2448     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2449     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2450   fi
2451 else # "$safe_stack" = ""
2452   # Set safe_stack to yes or no based on pre-existing flags
2453   if compile_prog "-Werror" ""; then
2454     safe_stack="no"
2455   else
2456     safe_stack="yes"
2457     if test "$coroutine" != "ucontext"; then
2458       error_exit "SafeStack is only supported by the coroutine backend ucontext"
2459     fi
2460   fi
2461 fi
2462 fi
2463
2464 ########################################
2465 # check if ccache is interfering with
2466 # semantic analysis of macros
2467
2468 unset CCACHE_CPP2
2469 ccache_cpp2=no
2470 cat > $TMPC << EOF
2471 static const int Z = 1;
2472 #define fn() ({ Z; })
2473 #define TAUT(X) ((X) == Z)
2474 #define PAREN(X, Y) (X == Y)
2475 #define ID(X) (X)
2476 int main(int argc, char *argv[])
2477 {
2478     int x = 0, y = 0;
2479     x = ID(x);
2480     x = fn();
2481     fn();
2482     if (PAREN(x, y)) return 0;
2483     if (TAUT(Z)) return 0;
2484     return 0;
2485 }
2486 EOF
2487
2488 if ! compile_object "-Werror"; then
2489     ccache_cpp2=yes
2490 fi
2491
2492 #################################################
2493 # clang does not support glibc + FORTIFY_SOURCE.
2494
2495 if test "$fortify_source" != "no"; then
2496   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
2497     fortify_source="no";
2498   elif test -n "$cxx" && has $cxx &&
2499        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
2500     fortify_source="no";
2501   else
2502     fortify_source="yes"
2503   fi
2504 fi
2505
2506 ##########################################
2507 # checks for sanitizers
2508
2509 have_asan=no
2510 have_ubsan=no
2511 have_asan_iface_h=no
2512 have_asan_iface_fiber=no
2513
2514 if test "$sanitizers" = "yes" ; then
2515   write_c_skeleton
2516   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
2517       have_asan=yes
2518   fi
2519
2520   # we could use a simple skeleton for flags checks, but this also
2521   # detect the static linking issue of ubsan, see also:
2522   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
2523   cat > $TMPC << EOF
2524 #include <stdlib.h>
2525 int main(void) {
2526     void *tmp = malloc(10);
2527     if (tmp != NULL) {
2528         return *(int *)(tmp + 2);
2529     }
2530     return 1;
2531 }
2532 EOF
2533   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
2534       have_ubsan=yes
2535   fi
2536
2537   if check_include "sanitizer/asan_interface.h" ; then
2538       have_asan_iface_h=yes
2539   fi
2540
2541   cat > $TMPC << EOF
2542 #include <sanitizer/asan_interface.h>
2543 int main(void) {
2544   __sanitizer_start_switch_fiber(0, 0, 0);
2545   return 0;
2546 }
2547 EOF
2548   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
2549       have_asan_iface_fiber=yes
2550   fi
2551 fi
2552
2553 # Thread sanitizer is, for now, much noisier than the other sanitizers;
2554 # keep it separate until that is not the case.
2555 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
2556   error_exit "TSAN is not supported with other sanitiziers."
2557 fi
2558 have_tsan=no
2559 have_tsan_iface_fiber=no
2560 if test "$tsan" = "yes" ; then
2561   write_c_skeleton
2562   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2563       have_tsan=yes
2564   fi
2565   cat > $TMPC << EOF
2566 #include <sanitizer/tsan_interface.h>
2567 int main(void) {
2568   __tsan_create_fiber(0);
2569   return 0;
2570 }
2571 EOF
2572   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
2573       have_tsan_iface_fiber=yes
2574   fi
2575 fi
2576
2577 ##########################################
2578 # check for slirp
2579
2580 case "$slirp" in
2581   auto | enabled | internal)
2582     # Simpler to always update submodule, even if not needed.
2583     git_submodules="${git_submodules} slirp"
2584     ;;
2585 esac
2586
2587 ##########################################
2588 # check for usable __NR_keyctl syscall
2589
2590 if test "$linux" = "yes" ; then
2591
2592     have_keyring=no
2593     cat > $TMPC << EOF
2594 #include <errno.h>
2595 #include <asm/unistd.h>
2596 #include <linux/keyctl.h>
2597 #include <unistd.h>
2598 int main(void) {
2599     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
2600 }
2601 EOF
2602     if compile_prog "" "" ; then
2603         have_keyring=yes
2604     fi
2605 fi
2606 if test "$secret_keyring" != "no"
2607 then
2608     if test "$have_keyring" = "yes"
2609     then
2610         secret_keyring=yes
2611     else
2612         if test "$secret_keyring" = "yes"
2613         then
2614             error_exit "syscall __NR_keyctl requested, \
2615 but not implemented on your system"
2616         else
2617             secret_keyring=no
2618         fi
2619     fi
2620 fi
2621
2622 ##########################################
2623 # End of CC checks
2624 # After here, no more $cc or $ld runs
2625
2626 write_c_skeleton
2627
2628 if test "$fortify_source" = "yes" ; then
2629   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
2630   debug=no
2631 fi
2632
2633 case "$ARCH" in
2634 alpha)
2635   # Ensure there's only a single GP
2636   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
2637 ;;
2638 esac
2639
2640 if test "$have_asan" = "yes"; then
2641   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
2642   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
2643   if test "$have_asan_iface_h" = "no" ; then
2644       echo "ASAN build enabled, but ASAN header missing." \
2645            "Without code annotation, the report may be inferior."
2646   elif test "$have_asan_iface_fiber" = "no" ; then
2647       echo "ASAN build enabled, but ASAN header is too old." \
2648            "Without code annotation, the report may be inferior."
2649   fi
2650 fi
2651 if test "$have_tsan" = "yes" ; then
2652   if test "$have_tsan_iface_fiber" = "yes" ; then
2653     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
2654     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
2655   else
2656     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
2657   fi
2658 elif test "$tsan" = "yes" ; then
2659   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
2660 fi
2661 if test "$have_ubsan" = "yes"; then
2662   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
2663   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
2664 fi
2665
2666 ##########################################
2667
2668 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
2669 if test "$solaris" = "no" && test "$tsan" = "no"; then
2670     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
2671         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
2672     fi
2673 fi
2674
2675 # Use ASLR, no-SEH and DEP if available
2676 if test "$mingw32" = "yes" ; then
2677     flags="--no-seh --nxcompat"
2678
2679     # Disable ASLR for debug builds to allow debugging with gdb
2680     if test "$debug" = "no" ; then
2681         flags="--dynamicbase $flags"
2682     fi
2683
2684     for flag in $flags; do
2685         if ld_has $flag ; then
2686             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
2687         fi
2688     done
2689 fi
2690
2691 # Guest agent Windows MSI package
2692
2693 if test "$QEMU_GA_MANUFACTURER" = ""; then
2694   QEMU_GA_MANUFACTURER=QEMU
2695 fi
2696 if test "$QEMU_GA_DISTRO" = ""; then
2697   QEMU_GA_DISTRO=Linux
2698 fi
2699 if test "$QEMU_GA_VERSION" = ""; then
2700     QEMU_GA_VERSION=$(cat $source_path/VERSION)
2701 fi
2702
2703 QEMU_GA_MSI_MINGW_BIN_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
2704
2705 # Mac OS X ships with a broken assembler
2706 roms=
2707 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
2708         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
2709         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
2710     # Different host OS linkers have different ideas about the name of the ELF
2711     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
2712     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
2713     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
2714         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
2715             ld_i386_emulation="$emu"
2716             roms="optionrom"
2717             break
2718         fi
2719     done
2720 fi
2721
2722 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
2723 # or -march=z10 (which is the lowest architecture level that Clang supports)
2724 if test "$cpu" = "s390x" ; then
2725   write_c_skeleton
2726   compile_prog "-march=z900" ""
2727   has_z900=$?
2728   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
2729     if [ $has_z900 != 0 ]; then
2730       echo "WARNING: Your compiler does not support the z900!"
2731       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
2732     fi
2733     roms="$roms s390-ccw"
2734     # SLOF is required for building the s390-ccw firmware on s390x,
2735     # since it is using the libnet code from SLOF for network booting.
2736     git_submodules="${git_submodules} roms/SLOF"
2737   fi
2738 fi
2739
2740 # Check that the C++ compiler exists and works with the C compiler.
2741 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
2742 if has $cxx; then
2743     cat > $TMPC <<EOF
2744 int c_function(void);
2745 int main(void) { return c_function(); }
2746 EOF
2747
2748     compile_object
2749
2750     cat > $TMPCXX <<EOF
2751 extern "C" {
2752    int c_function(void);
2753 }
2754 int c_function(void) { return 42; }
2755 EOF
2756
2757     update_cxxflags
2758
2759     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
2760         # C++ compiler $cxx works ok with C compiler $cc
2761         :
2762     else
2763         echo "C++ compiler $cxx does not work with C compiler $cc"
2764         echo "Disabling C++ specific optional code"
2765         cxx=
2766     fi
2767 else
2768     echo "No C++ compiler available; disabling C++ specific optional code"
2769     cxx=
2770 fi
2771
2772 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
2773     exit 1
2774 fi
2775
2776 config_host_mak="config-host.mak"
2777
2778 echo "# Automatically generated by configure - do not modify" > $config_host_mak
2779 echo >> $config_host_mak
2780
2781 echo all: >> $config_host_mak
2782 echo "GIT=$git" >> $config_host_mak
2783 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
2784 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
2785
2786 if test "$debug_tcg" = "yes" ; then
2787   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
2788 fi
2789 if test "$mingw32" = "yes" ; then
2790   echo "CONFIG_WIN32=y" >> $config_host_mak
2791   echo "QEMU_GA_MSI_MINGW_BIN_PATH=${QEMU_GA_MSI_MINGW_BIN_PATH}" >> $config_host_mak
2792   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
2793   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
2794   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
2795 else
2796   echo "CONFIG_POSIX=y" >> $config_host_mak
2797 fi
2798
2799 if test "$linux" = "yes" ; then
2800   echo "CONFIG_LINUX=y" >> $config_host_mak
2801 fi
2802
2803 if test "$darwin" = "yes" ; then
2804   echo "CONFIG_DARWIN=y" >> $config_host_mak
2805 fi
2806
2807 if test "$solaris" = "yes" ; then
2808   echo "CONFIG_SOLARIS=y" >> $config_host_mak
2809 fi
2810 if test "$static" = "yes" ; then
2811   echo "CONFIG_STATIC=y" >> $config_host_mak
2812 fi
2813 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
2814 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
2815 qemu_version=$(head $source_path/VERSION)
2816 echo "PKGVERSION=$pkgversion" >>$config_host_mak
2817 echo "SRC_PATH=$source_path" >> $config_host_mak
2818 echo "TARGET_DIRS=$target_list" >> $config_host_mak
2819 if test "$modules" = "yes"; then
2820   # $shacmd can generate a hash started with digit, which the compiler doesn't
2821   # like as an symbol. So prefix it with an underscore
2822   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
2823   echo "CONFIG_MODULES=y" >> $config_host_mak
2824 fi
2825 if test "$module_upgrades" = "yes"; then
2826   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
2827 fi
2828 if test "$have_usbfs" = "yes" ; then
2829   echo "CONFIG_USBFS=y" >> $config_host_mak
2830 fi
2831 if test "$gio" = "yes" ; then
2832     echo "CONFIG_GIO=y" >> $config_host_mak
2833     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
2834     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
2835 fi
2836 if test "$gdbus_codegen" != "" ; then
2837     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
2838 fi
2839 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
2840
2841 if test "$xen" = "enabled" ; then
2842   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
2843   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
2844   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
2845   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
2846 fi
2847 if test "$vhost_scsi" = "yes" ; then
2848   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
2849 fi
2850 if test "$vhost_net" = "yes" ; then
2851   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
2852 fi
2853 if test "$vhost_net_user" = "yes" ; then
2854   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
2855 fi
2856 if test "$vhost_net_vdpa" = "yes" ; then
2857   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
2858 fi
2859 if test "$vhost_crypto" = "yes" ; then
2860   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
2861 fi
2862 if test "$vhost_vsock" = "yes" ; then
2863   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
2864   if test "$vhost_user" = "yes" ; then
2865     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
2866   fi
2867 fi
2868 if test "$vhost_kernel" = "yes" ; then
2869   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
2870 fi
2871 if test "$vhost_user" = "yes" ; then
2872   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
2873 fi
2874 if test "$vhost_vdpa" = "yes" ; then
2875   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
2876 fi
2877 if test "$vhost_user_fs" = "yes" ; then
2878   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
2879 fi
2880
2881 if test "$opengl" = "yes" ; then
2882   echo "CONFIG_OPENGL=y" >> $config_host_mak
2883   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
2884   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
2885 fi
2886
2887 # XXX: suppress that
2888 if [ "$bsd" = "yes" ] ; then
2889   echo "CONFIG_BSD=y" >> $config_host_mak
2890 fi
2891
2892 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
2893
2894 if test "$have_asan_iface_fiber" = "yes" ; then
2895     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
2896 fi
2897
2898 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
2899     echo "CONFIG_TSAN=y" >> $config_host_mak
2900 fi
2901
2902 if test "$rdma" = "yes" ; then
2903   echo "CONFIG_RDMA=y" >> $config_host_mak
2904   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
2905 fi
2906
2907 if test "$pvrdma" = "yes" ; then
2908   echo "CONFIG_PVRDMA=y" >> $config_host_mak
2909 fi
2910
2911 if test "$plugins" = "yes" ; then
2912     echo "CONFIG_PLUGIN=y" >> $config_host_mak
2913 fi
2914
2915 if test -n "$gdb_bin"; then
2916     gdb_version=$($gdb_bin --version | head -n 1)
2917     if version_ge ${gdb_version##* } 9.1; then
2918         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
2919     fi
2920 fi
2921
2922 if test "$secret_keyring" = "yes" ; then
2923   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
2924 fi
2925
2926 echo "ROMS=$roms" >> $config_host_mak
2927 echo "MAKE=$make" >> $config_host_mak
2928 echo "PYTHON=$python" >> $config_host_mak
2929 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
2930 echo "MESON=$meson" >> $config_host_mak
2931 echo "NINJA=$ninja" >> $config_host_mak
2932 echo "CC=$cc" >> $config_host_mak
2933 echo "AR=$ar" >> $config_host_mak
2934 echo "AS=$as" >> $config_host_mak
2935 echo "CCAS=$ccas" >> $config_host_mak
2936 echo "CPP=$cpp" >> $config_host_mak
2937 echo "OBJCOPY=$objcopy" >> $config_host_mak
2938 echo "LD=$ld" >> $config_host_mak
2939 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
2940 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
2941 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
2942 echo "QEMU_OBJCFLAGS=$QEMU_OBJCFLAGS" >> $config_host_mak
2943 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
2944 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
2945 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
2946 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
2947 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
2948 echo "STRIP=$strip" >> $config_host_mak
2949 echo "EXESUF=$EXESUF" >> $config_host_mak
2950
2951 # use included Linux headers
2952 if test "$linux" = "yes" ; then
2953   mkdir -p linux-headers
2954   case "$cpu" in
2955   i386|x86_64)
2956     linux_arch=x86
2957     ;;
2958   ppc|ppc64)
2959     linux_arch=powerpc
2960     ;;
2961   s390x)
2962     linux_arch=s390
2963     ;;
2964   aarch64)
2965     linux_arch=arm64
2966     ;;
2967   loongarch*)
2968     linux_arch=loongarch
2969     ;;
2970   mips64)
2971     linux_arch=mips
2972     ;;
2973   *)
2974     # For most CPUs the kernel architecture name and QEMU CPU name match.
2975     linux_arch="$cpu"
2976     ;;
2977   esac
2978     # For non-KVM architectures we will not have asm headers
2979     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
2980       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
2981     fi
2982 fi
2983
2984 for target in $target_list; do
2985     target_dir="$target"
2986     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
2987     mkdir -p $target_dir
2988     case $target in
2989         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
2990         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
2991     esac
2992 done
2993
2994 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
2995 if test "$default_targets" = "yes"; then
2996   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
2997 fi
2998
2999 if test "$ccache_cpp2" = "yes"; then
3000   echo "export CCACHE_CPP2=y" >> $config_host_mak
3001 fi
3002
3003 if test "$safe_stack" = "yes"; then
3004   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
3005 fi
3006
3007 # If we're using a separate build tree, set it up now.
3008 # LINKS are things to symlink back into the source tree
3009 # (these can be both files and directories).
3010 # Caution: do not add files or directories here using wildcards. This
3011 # will result in problems later if a new file matching the wildcard is
3012 # added to the source tree -- nothing will cause configure to be rerun
3013 # so the build tree will be missing the link back to the new file, and
3014 # tests might fail. Prefer to keep the relevant files in their own
3015 # directory and symlink the directory instead.
3016 LINKS="Makefile"
3017 LINKS="$LINKS tests/tcg/Makefile.target"
3018 LINKS="$LINKS pc-bios/optionrom/Makefile"
3019 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
3020 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
3021 LINKS="$LINKS tests/avocado tests/data"
3022 LINKS="$LINKS tests/qemu-iotests/check"
3023 LINKS="$LINKS python"
3024 LINKS="$LINKS contrib/plugins/Makefile "
3025 for bios_file in \
3026     $source_path/pc-bios/*.bin \
3027     $source_path/pc-bios/*.elf \
3028     $source_path/pc-bios/*.lid \
3029     $source_path/pc-bios/*.rom \
3030     $source_path/pc-bios/*.dtb \
3031     $source_path/pc-bios/*.img \
3032     $source_path/pc-bios/openbios-* \
3033     $source_path/pc-bios/u-boot.* \
3034     $source_path/pc-bios/palcode-* \
3035     $source_path/pc-bios/qemu_vga.ndrv
3036
3037 do
3038     LINKS="$LINKS pc-bios/$(basename $bios_file)"
3039 done
3040 for f in $LINKS ; do
3041     if [ -e "$source_path/$f" ]; then
3042         mkdir -p `dirname ./$f`
3043         symlink "$source_path/$f" "$f"
3044     fi
3045 done
3046
3047 (for i in $cross_cc_vars; do
3048   export $i
3049 done
3050 export target_list source_path use_containers cpu host_cc
3051 $source_path/tests/tcg/configure.sh)
3052
3053 config_mak=pc-bios/optionrom/config.mak
3054 echo "# Automatically generated by configure - do not modify" > $config_mak
3055 echo "TOPSRC_DIR=$source_path" >> $config_mak
3056
3057 if test "$skip_meson" = no; then
3058   cross="config-meson.cross.new"
3059   meson_quote() {
3060     test $# = 0 && return
3061     echo "'$(echo $* | sed "s/ /','/g")'"
3062   }
3063
3064   echo "# Automatically generated by configure - do not modify" > $cross
3065   echo "[properties]" >> $cross
3066
3067   # unroll any custom device configs
3068   for a in $device_archs; do
3069       eval "c=\$devices_${a}"
3070       echo "${a}-softmmu = '$c'" >> $cross
3071   done
3072
3073   test -z "$cxx" && echo "link_language = 'c'" >> $cross
3074   echo "[built-in options]" >> $cross
3075   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
3076   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
3077   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
3078   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
3079   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
3080   echo "[binaries]" >> $cross
3081   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
3082   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
3083   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
3084   echo "ar = [$(meson_quote $ar)]" >> $cross
3085   echo "nm = [$(meson_quote $nm)]" >> $cross
3086   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
3087   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
3088   if has $sdl2_config; then
3089     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
3090   fi
3091   echo "strip = [$(meson_quote $strip)]" >> $cross
3092   echo "windres = [$(meson_quote $windres)]" >> $cross
3093   if test "$cross_compile" = "yes"; then
3094     cross_arg="--cross-file config-meson.cross"
3095     echo "[host_machine]" >> $cross
3096     echo "system = '$targetos'" >> $cross
3097     case "$cpu" in
3098         i386)
3099             echo "cpu_family = 'x86'" >> $cross
3100             ;;
3101         *)
3102             echo "cpu_family = '$cpu'" >> $cross
3103             ;;
3104     esac
3105     echo "cpu = '$cpu'" >> $cross
3106     if test "$bigendian" = "yes" ; then
3107         echo "endian = 'big'" >> $cross
3108     else
3109         echo "endian = 'little'" >> $cross
3110     fi
3111   else
3112     cross_arg="--native-file config-meson.cross"
3113   fi
3114   mv $cross config-meson.cross
3115
3116   rm -rf meson-private meson-info meson-logs
3117   run_meson() {
3118     NINJA=$ninja $meson setup \
3119         --prefix "$prefix" \
3120         --libdir "$libdir" \
3121         --libexecdir "$libexecdir" \
3122         --bindir "$bindir" \
3123         --includedir "$includedir" \
3124         --datadir "$datadir" \
3125         --mandir "$mandir" \
3126         --sysconfdir "$sysconfdir" \
3127         --localedir "$localedir" \
3128         --localstatedir "$local_statedir" \
3129         -Daudio_drv_list=$audio_drv_list \
3130         -Ddefault_devices=$default_devices \
3131         -Ddocdir="$docdir" \
3132         -Diasl="$($iasl -h >/dev/null 2>&1 && printf %s "$iasl")" \
3133         -Dqemu_firmwarepath="$firmwarepath" \
3134         -Dqemu_suffix="$qemu_suffix" \
3135         -Dsmbd="$smbd" \
3136         -Dsphinx_build="$sphinx_build" \
3137         -Dtrace_file="$trace_file" \
3138         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
3139         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
3140         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
3141         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
3142         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
3143         -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg -Dxen=$xen \
3144         -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
3145         $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
3146         $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
3147         "$@" $cross_arg "$PWD" "$source_path"
3148   }
3149   eval run_meson $meson_options
3150   if test "$?" -ne 0 ; then
3151       error_exit "meson setup failed"
3152   fi
3153 else
3154   if test -f meson-private/cmd_line.txt; then
3155     # Adjust old command line options whose type was changed
3156     # Avoids having to use "setup --wipe" when Meson is upgraded
3157     perl -i -ne '
3158       s/^gettext = true$/gettext = auto/;
3159       s/^gettext = false$/gettext = disabled/;
3160       /^b_staticpic/ && next;
3161       print;' meson-private/cmd_line.txt
3162   fi
3163 fi
3164
3165 # Save the configure command line for later reuse.
3166 cat <<EOD >config.status
3167 #!/bin/sh
3168 # Generated by configure.
3169 # Run this file to recreate the current configuration.
3170 # Compiler output produced by configure, useful for debugging
3171 # configure, is in config.log if it exists.
3172 EOD
3173
3174 preserve_env() {
3175     envname=$1
3176
3177     eval envval=\$$envname
3178
3179     if test -n "$envval"
3180     then
3181         echo "$envname='$envval'" >> config.status
3182         echo "export $envname" >> config.status
3183     else
3184         echo "unset $envname" >> config.status
3185     fi
3186 }
3187
3188 # Preserve various env variables that influence what
3189 # features/build target configure will detect
3190 preserve_env AR
3191 preserve_env AS
3192 preserve_env CC
3193 preserve_env CPP
3194 preserve_env CFLAGS
3195 preserve_env CXX
3196 preserve_env CXXFLAGS
3197 preserve_env INSTALL
3198 preserve_env LD
3199 preserve_env LDFLAGS
3200 preserve_env LD_LIBRARY_PATH
3201 preserve_env LIBTOOL
3202 preserve_env MAKE
3203 preserve_env NM
3204 preserve_env OBJCOPY
3205 preserve_env PATH
3206 preserve_env PKG_CONFIG
3207 preserve_env PKG_CONFIG_LIBDIR
3208 preserve_env PKG_CONFIG_PATH
3209 preserve_env PYTHON
3210 preserve_env SDL2_CONFIG
3211 preserve_env SMBD
3212 preserve_env STRIP
3213 preserve_env WINDRES
3214
3215 printf "exec" >>config.status
3216 for i in "$0" "$@"; do
3217   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
3218 done
3219 echo ' "$@"' >>config.status
3220 chmod +x config.status
3221
3222 rm -r "$TMPDIR1"