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.  Unlike autoconf, we assume that unset exists.
   8 unset CLICOLOR_FORCE GREP_OPTIONS BASH_ENV ENV MAIL MAILPATH CDPATH
   9
  10 # Don't allow CCACHE, if present, to use cached results of compile tests!
  11 export CCACHE_RECACHE=yes
  12
  13 # make source path absolute
  14 source_path=$(cd "$(dirname -- "$0")"; pwd)
  15
  16 if test "$PWD" = "$source_path"
  17 then
  18     echo "Using './build' as the directory for build output"
  19
  20     MARKER=build/auto-created-by-configure
  21
  22     if test -e build
  23     then
  24         if test -f $MARKER
  25         then
  26            rm -rf build
  27         else
  28             echo "ERROR: ./build dir already exists and was not previously created by configure"
  29             exit 1
  30         fi
  31     fi
  32
  33     if ! mkdir build || ! touch $MARKER
  34     then
  35         echo "ERROR: Could not create ./build directory. Check the permissions on"
  36         echo "your source directory, or try doing an out-of-tree build."
  37         exit 1
  38     fi
  39
  40     cat > GNUmakefile <<'EOF'
  41 # This file is auto-generated by configure to support in-source tree
  42 # 'make' command invocation
  43
  44 ifeq ($(MAKECMDGOALS),)
  45 recurse: all
  46 endif
  47
  48 .NOTPARALLEL: %
  49 %: force
  50         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  51         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  52         @if test "$(MAKECMDGOALS)" = "distclean" && \
  53             test -e build/auto-created-by-configure ; \
  54         then \
  55             rm -rf build GNUmakefile ; \
  56         fi
  57 force: ;
  58 .PHONY: force
  59 GNUmakefile: ;
  60
  61 EOF
  62     cd build
  63     exec "$source_path/configure" "$@"
  64 fi
  65
  66 # Temporary directory used for files created while
  67 # configure runs. Since it is in the build directory
  68 # we can safely blow away any previous version of it
  69 # (and we need not jump through hoops to try to delete
  70 # it when configure exits.)
  71 TMPDIR1="config-temp"
  72 rm -rf "${TMPDIR1}"
  73 if ! mkdir -p "${TMPDIR1}"; then
  74     echo "ERROR: failed to create temporary directory"
  75     exit 1
  76 fi
  77
  78 TMPB="qemu-conf"
  79 TMPC="${TMPDIR1}/${TMPB}.c"
  80 TMPO="${TMPDIR1}/${TMPB}.o"
  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 $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 # repeat the invocation to log and stdout for CI
  89 invoke=$(printf " '%s'" "$0" "$@")
  90 test -n "$GITLAB_CI" && echo "configuring with: $invoke"
  91 { echo "$invoke"; echo; echo "#"; } >> config.log
  92
  93 quote_sh() {
  94     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  95 }
  96
  97 print_error() {
  98     (echo
  99     echo "ERROR: $1"
 100     while test -n "$2"; do
 101         echo "       $2"
 102         shift
 103     done
 104     echo) >&2
 105 }
 106
 107 error_exit() {
 108     print_error "$@"
 109     exit 1
 110 }
 111
 112 do_compiler() {
 113   # Run the compiler, capturing its output to the log. First argument
 114   # is compiler binary to execute.
 115   compiler="$1"
 116   shift
 117   if test -n "$BASH_VERSION"; then eval '
 118       echo >>config.log "
 119 funcs: ${FUNCNAME[*]}
 120 lines: ${BASH_LINENO[*]}"
 121   '; fi
 122   echo $compiler "$@" >> config.log
 123   $compiler "$@" >> config.log 2>&1 || return $?
 124 }
 125
 126 do_cc() {
 127     do_compiler "$cc" $CPU_CFLAGS "$@"
 128 }
 129
 130 compile_object() {
 131   local_cflags="$1"
 132   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -c -o $TMPO $TMPC
 133 }
 134
 135 compile_prog() {
 136   local_cflags="$1"
 137   local_ldflags="$2"
 138   do_cc $CFLAGS $EXTRA_CFLAGS $local_cflags -o $TMPE $TMPC \
 139       $LDFLAGS $EXTRA_LDFLAGS $local_ldflags
 140 }
 141
 142 # symbolically link $1 to $2.  Portable version of "ln -sf".
 143 symlink() {
 144   rm -rf "$2"
 145   mkdir -p "$(dirname "$2")"
 146   ln -s "$1" "$2"
 147 }
 148
 149 # check whether a command is available to this shell (may be either an
 150 # executable or a builtin)
 151 has() {
 152     type "$1" >/dev/null 2>&1
 153 }
 154
 155 version_ge () {
 156     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 157     local_ver2=$(echo "$2" | tr . ' ')
 158     while true; do
 159         set x $local_ver1
 160         local_first=${2-0}
 161         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 162         shift ${2:+2}
 163         local_ver1=$*
 164         set x $local_ver2
 165         # the second argument finished, the first must be greater or equal
 166         test $# = 1 && return 0
 167         test $local_first -lt $2 && return 1
 168         test $local_first -gt $2 && return 0
 169         shift ${2:+2}
 170         local_ver2=$*
 171     done
 172 }
 173
 174 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 175 then
 176   error_exit "main directory cannot contain spaces nor colons"
 177 fi
 178
 179 # parse CC options first; some compiler tests are used to establish
 180 # some defaults, based on the host environment
 181
 182 # default parameters
 183 cpu=""
 184 cross_compile="no"
 185 cross_prefix=""
 186 host_cc="cc"
 187 EXTRA_CFLAGS=""
 188 EXTRA_CXXFLAGS=""
 189 EXTRA_OBJCFLAGS=""
 190 EXTRA_LDFLAGS=""
 191
 192 # Default value for a variable defining feature "foo".
 193 #  * foo="no"  feature will only be used if --enable-foo arg is given
 194 #  * foo=""    feature will be searched for, and if found, will be used
 195 #              unless --disable-foo is given
 196 #  * foo="yes" this value will only be set by --enable-foo flag.
 197 #              feature will searched for,
 198 #              if not found, configure exits with error
 199 #
 200 # Always add --enable-foo and --disable-foo command line args.
 201 # Distributions want to ensure that several features are compiled in, and it
 202 # is impossible without a --enable-foo that exits if a feature is not found.
 203 default_feature=""
 204
 205 for opt do
 206   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 207   case "$opt" in
 208   --cross-prefix=*) cross_prefix="$optarg"
 209                     cross_compile="yes"
 210   ;;
 211   --cc=*) CC="$optarg"
 212   ;;
 213   --cxx=*) CXX="$optarg"
 214   ;;
 215   --objcc=*) objcc="$optarg"
 216   ;;
 217   --cpu=*) cpu="$optarg"
 218   ;;
 219   --extra-cflags=*)
 220     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 221     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 222     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 223     ;;
 224   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 225   ;;
 226   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 227   ;;
 228   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 229   ;;
 230   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 231   ;;
 232   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 233                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 234   ;;
 235   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 236                 eval "cross_cc_${cc_arch}=\$optarg"
 237   ;;
 238   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 239   ;;
 240   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 241                     eval "cross_prefix_${cc_arch}=\$optarg"
 242   ;;
 243   --without-default-features) default_feature="no"
 244   ;;
 245   esac
 246 done
 247
 248
 249 git_submodules_action="update"
 250 git="git"
 251 debug_tcg="no"
 252 docs="auto"
 253 EXESUF=""
 254 prefix="/usr/local"
 255 qemu_suffix="qemu"
 256 softmmu="yes"
 257 linux_user=""
 258 bsd_user=""
 259 plugins="$default_feature"
 260 ninja=""
 261 python=
 262 download="enabled"
 263 bindir="bin"
 264 skip_meson=no
 265 use_containers="yes"
 266 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 267 gdb_arches=""
 268 werror=""
 269
 270 # Don't accept a target_list environment variable.
 271 unset target_list
 272 unset target_list_exclude
 273
 274 # The following Meson options are handled manually (still they
 275 # are included in the automatically generated help message)
 276 # because they automatically enable/disable other options
 277 tcg="auto"
 278 cfi="false"
 279
 280 # Meson has PIE as a boolean rather than enabled/disabled/auto,
 281 # and we also need to check for -static-pie before Meson runs
 282 # which requires knowing whether --static is enabled.
 283 pie=""
 284 static="no"
 285
 286 # Preferred compiler:
 287 #  ${CC} (if set)
 288 #  ${cross_prefix}gcc (if cross-prefix specified)
 289 #  system compiler
 290 if test -z "${CC}${cross_prefix}"; then
 291   cc="$host_cc"
 292 else
 293   cc="${CC-${cross_prefix}gcc}"
 294 fi
 295
 296 if test -z "${CXX}${cross_prefix}"; then
 297   cxx="c++"
 298 else
 299   cxx="${CXX-${cross_prefix}g++}"
 300 fi
 301
 302 # Preferred ObjC compiler:
 303 # $objcc (if set, i.e. via --objcc option)
 304 # ${cross_prefix}clang (if cross-prefix specified)
 305 # clang (if available)
 306 # $cc
 307 if test -z "${objcc}${cross_prefix}"; then
 308   if has clang; then
 309     objcc=clang
 310   else
 311     objcc="$cc"
 312   fi
 313 else
 314   objcc="${objcc-${cross_prefix}clang}"
 315 fi
 316
 317 ar="${AR-${cross_prefix}ar}"
 318 as="${AS-${cross_prefix}as}"
 319 ccas="${CCAS-$cc}"
 320 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 321 ld="${LD-${cross_prefix}ld}"
 322 ranlib="${RANLIB-${cross_prefix}ranlib}"
 323 nm="${NM-${cross_prefix}nm}"
 324 smbd="$SMBD"
 325 strip="${STRIP-${cross_prefix}strip}"
 326 widl="${WIDL-${cross_prefix}widl}"
 327 windres="${WINDRES-${cross_prefix}windres}"
 328 windmc="${WINDMC-${cross_prefix}windmc}"
 329 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 330 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 331
 332 check_define() {
 333 cat > $TMPC <<EOF
 334 #if !defined($1)
 335 #error $1 not defined
 336 #endif
 337 int main(void) { return 0; }
 338 EOF
 339   compile_object
 340 }
 341
 342 write_c_skeleton() {
 343     cat > $TMPC <<EOF
 344 int main(void) { return 0; }
 345 EOF
 346 }
 347
 348 if check_define __linux__ ; then
 349   targetos=linux
 350 elif check_define _WIN32 ; then
 351   targetos=windows
 352 elif check_define __OpenBSD__ ; then
 353   targetos=openbsd
 354 elif check_define __sun__ ; then
 355   targetos=sunos
 356 elif check_define __HAIKU__ ; then
 357   targetos=haiku
 358 elif check_define __FreeBSD__ ; then
 359   targetos=freebsd
 360 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 361   targetos=gnu/kfreebsd
 362 elif check_define __DragonFly__ ; then
 363   targetos=dragonfly
 364 elif check_define __NetBSD__; then
 365   targetos=netbsd
 366 elif check_define __APPLE__; then
 367   targetos=darwin
 368 else
 369   # This is a fatal error, but don't report it yet, because we
 370   # might be going to just print the --help text, or it might
 371   # be the result of a missing compiler.
 372   targetos=bogus
 373 fi
 374
 375 # OS specific
 376
 377 mingw32="no"
 378 bsd="no"
 379 linux="no"
 380 solaris="no"
 381 case $targetos in
 382 windows)
 383   mingw32="yes"
 384   plugins="no"
 385   pie="no"
 386 ;;
 387 gnu/kfreebsd)
 388   bsd="yes"
 389 ;;
 390 freebsd)
 391   bsd="yes"
 392   # needed for kinfo_getvmmap(3) in libutil.h
 393 ;;
 394 dragonfly)
 395   bsd="yes"
 396 ;;
 397 netbsd)
 398   bsd="yes"
 399 ;;
 400 openbsd)
 401   bsd="yes"
 402 ;;
 403 darwin)
 404   bsd="yes"
 405   darwin="yes"
 406 ;;
 407 sunos)
 408   solaris="yes"
 409 ;;
 410 haiku)
 411   pie="no"
 412 ;;
 413 linux)
 414   linux="yes"
 415 ;;
 416 esac
 417
 418 if test ! -z "$cpu" ; then
 419   # command line argument
 420   :
 421 elif check_define __i386__ ; then
 422   cpu="i386"
 423 elif check_define __x86_64__ ; then
 424   if check_define __ILP32__ ; then
 425     cpu="x32"
 426   else
 427     cpu="x86_64"
 428   fi
 429 elif check_define __sparc__ ; then
 430   if check_define __arch64__ ; then
 431     cpu="sparc64"
 432   else
 433     cpu="sparc"
 434   fi
 435 elif check_define _ARCH_PPC ; then
 436   if check_define _ARCH_PPC64 ; then
 437     if check_define _LITTLE_ENDIAN ; then
 438       cpu="ppc64le"
 439     else
 440       cpu="ppc64"
 441     fi
 442   else
 443     cpu="ppc"
 444   fi
 445 elif check_define __mips__ ; then
 446   cpu="mips"
 447 elif check_define __s390__ ; then
 448   if check_define __s390x__ ; then
 449     cpu="s390x"
 450   else
 451     cpu="s390"
 452   fi
 453 elif check_define __riscv ; then
 454   cpu="riscv"
 455 elif check_define __arm__ ; then
 456   cpu="arm"
 457 elif check_define __aarch64__ ; then
 458   cpu="aarch64"
 459 elif check_define __loongarch64 ; then
 460   cpu="loongarch64"
 461 else
 462   # Using uname is really broken, but it is just a fallback for architectures
 463   # that are going to use TCI anyway
 464   cpu=$(uname -m)
 465   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 466 fi
 467
 468 # Normalise host CPU name and set multilib cflags.  The canonicalization
 469 # isn't really necessary, because the architectures that we check for
 470 # should not hit the 'uname -m' case, but better safe than sorry.
 471 # Note that this case should only have supported host CPUs, not guests.
 472 case "$cpu" in
 473   armv*b|armv*l|arm)
 474     cpu="arm" ;;
 475
 476   i386|i486|i586|i686)
 477     cpu="i386"
 478     CPU_CFLAGS="-m32" ;;
 479   x32)
 480     cpu="x86_64"
 481     CPU_CFLAGS="-mx32" ;;
 482   x86_64|amd64)
 483     cpu="x86_64"
 484     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 485     # If we truly care, we should simply detect this case at
 486     # runtime and generate the fallback to serial emulation.
 487     CPU_CFLAGS="-m64 -mcx16" ;;
 488
 489   mips*)
 490     cpu="mips" ;;
 491
 492   ppc)
 493     CPU_CFLAGS="-m32" ;;
 494   ppc64)
 495     CPU_CFLAGS="-m64 -mbig-endian" ;;
 496   ppc64le)
 497     cpu="ppc64"
 498     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 499
 500   s390)
 501     CPU_CFLAGS="-m31" ;;
 502   s390x)
 503     CPU_CFLAGS="-m64" ;;
 504
 505   sparc|sun4[cdmuv])
 506     cpu="sparc"
 507     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 508   sparc64)
 509     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 510 esac
 511
 512 check_py_version() {
 513     # We require python >= 3.7.
 514     # NB: a True python conditional creates a non-zero return code (Failure)
 515     "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
 516 }
 517
 518 first_python=
 519 if test -z "${PYTHON}"; then
 520     # A bare 'python' is traditionally python 2.x, but some distros
 521     # have it as python 3.x, so check in both places.
 522     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
 523         if has "$binary"; then
 524             python=$(command -v "$binary")
 525             if check_py_version "$python"; then
 526                 # This one is good.
 527                 first_python=
 528                 break
 529             else
 530                 first_python=$python
 531             fi
 532         fi
 533     done
 534 else
 535     # Same as above, but only check the environment variable.
 536     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 537     python=$(command -v "$PYTHON")
 538     if check_py_version "$python"; then
 539         # This one is good.
 540         first_python=
 541     else
 542         first_python=$first_python
 543     fi
 544 fi
 545
 546 # Check for ancillary tools used in testing
 547 genisoimage=
 548 for binary in genisoimage mkisofs
 549 do
 550     if has $binary
 551     then
 552         genisoimage=$(command -v "$binary")
 553         break
 554     fi
 555 done
 556
 557 if test "$mingw32" = "yes" ; then
 558   EXESUF=".exe"
 559   prefix="/qemu"
 560   bindir=""
 561   qemu_suffix=""
 562 fi
 563
 564 meson_option_build_array() {
 565   printf '['
 566   (if test "$targetos" = windows; then
 567     IFS=\;
 568   else
 569     IFS=:
 570   fi
 571   for e in $1; do
 572     printf '"""'
 573     # backslash escape any '\' and '"' characters
 574     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 575     printf '""",'
 576   done)
 577   printf ']\n'
 578 }
 579
 580 . "$source_path/scripts/meson-buildoptions.sh"
 581
 582 meson_options=
 583 meson_option_add() {
 584   meson_options="$meson_options $(quote_sh "$1")"
 585 }
 586 meson_option_parse() {
 587   meson_options="$meson_options $(_meson_option_parse "$@")"
 588   if test $? -eq 1; then
 589     echo "ERROR: unknown option $1"
 590     echo "Try '$0 --help' for more information"
 591     exit 1
 592   fi
 593 }
 594
 595 for opt do
 596   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 597   case "$opt" in
 598   --help|-h) show_help=yes
 599   ;;
 600   --version|-V) exec cat "$source_path/VERSION"
 601   ;;
 602   --prefix=*) prefix="$optarg"
 603   ;;
 604   --cross-prefix=*)
 605   ;;
 606   --cc=*)
 607   ;;
 608   --host-cc=*) host_cc="$optarg"
 609   ;;
 610   --cxx=*)
 611   ;;
 612   --objcc=*)
 613   ;;
 614   --make=*)
 615   ;;
 616   --install=*)
 617   ;;
 618   --python=*) python="$optarg"
 619   ;;
 620   --skip-meson) skip_meson=yes
 621   ;;
 622   --ninja=*) ninja="$optarg"
 623   ;;
 624   --smbd=*) smbd="$optarg"
 625   ;;
 626   --extra-cflags=*)
 627   ;;
 628   --extra-cxxflags=*)
 629   ;;
 630   --extra-objcflags=*)
 631   ;;
 632   --extra-ldflags=*)
 633   ;;
 634   --cross-cc-*)
 635   ;;
 636   --cross-prefix-*)
 637   ;;
 638   --enable-docs) docs=enabled
 639   ;;
 640   --disable-docs) docs=disabled
 641   ;;
 642   --cpu=*)
 643   ;;
 644   --target-list=*) target_list="$optarg"
 645                    if test "$target_list_exclude"; then
 646                        error_exit "Can't mix --target-list with --target-list-exclude"
 647                    fi
 648   ;;
 649   --target-list-exclude=*) target_list_exclude="$optarg"
 650                    if test "$target_list"; then
 651                        error_exit "Can't mix --target-list-exclude with --target-list"
 652                    fi
 653   ;;
 654   --with-default-devices) meson_option_add -Ddefault_devices=true
 655   ;;
 656   --without-default-devices) meson_option_add -Ddefault_devices=false
 657   ;;
 658   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 659   ;;
 660   --with-devices-*) device_arch=${opt#--with-devices-};
 661                     device_arch=${device_arch%%=*}
 662                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 663                     if test -f "$cf"; then
 664                         device_archs="$device_archs $device_arch"
 665                         eval "devices_${device_arch}=\$optarg"
 666                     else
 667                         error_exit "File $cf does not exist"
 668                     fi
 669   ;;
 670   --without-default-features) # processed above
 671   ;;
 672   --static) static="yes"
 673   ;;
 674   --bindir=*) bindir="$optarg"
 675   ;;
 676   --with-suffix=*) qemu_suffix="$optarg"
 677   ;;
 678   --host=*|--build=*|\
 679   --disable-dependency-tracking|\
 680   --sbindir=*|--sharedstatedir=*|\
 681   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 682   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 683     # These switches are silently ignored, for compatibility with
 684     # autoconf-generated configure scripts. This allows QEMU's
 685     # configure to be used by RPM and similar macros that set
 686     # lots of directory switches by default.
 687   ;;
 688   --enable-debug-tcg) debug_tcg="yes"
 689   ;;
 690   --disable-debug-tcg) debug_tcg="no"
 691   ;;
 692   --enable-debug)
 693       # Enable debugging options that aren't excessively noisy
 694       debug_tcg="yes"
 695       meson_option_parse --enable-debug-graph-lock ""
 696       meson_option_parse --enable-debug-mutex ""
 697       meson_option_add -Doptimization=0
 698   ;;
 699   --disable-tcg) tcg="disabled"
 700                  plugins="no"
 701   ;;
 702   --enable-tcg) tcg="enabled"
 703   ;;
 704   --disable-system) softmmu="no"
 705   ;;
 706   --enable-system) softmmu="yes"
 707   ;;
 708   --disable-user)
 709       linux_user="no" ;
 710       bsd_user="no" ;
 711   ;;
 712   --enable-user) ;;
 713   --disable-linux-user) linux_user="no"
 714   ;;
 715   --enable-linux-user) linux_user="yes"
 716   ;;
 717   --disable-bsd-user) bsd_user="no"
 718   ;;
 719   --enable-bsd-user) bsd_user="yes"
 720   ;;
 721   --enable-pie) pie="yes"
 722   ;;
 723   --disable-pie) pie="no"
 724   ;;
 725   --enable-werror) werror="yes"
 726   ;;
 727   --disable-werror) werror="no"
 728   ;;
 729   --enable-cfi)
 730       cfi="true";
 731       meson_option_add -Db_lto=true
 732   ;;
 733   --disable-cfi) cfi="false"
 734   ;;
 735   --disable-download) download="disabled"; git_submodules_action=validate;
 736   ;;
 737   --enable-download) download="enabled"; git_submodules_action=update;
 738   ;;
 739   --enable-plugins) if test "$mingw32" = "yes"; then
 740                         error_exit "TCG plugins not currently supported on Windows platforms"
 741                     else
 742                         plugins="yes"
 743                     fi
 744   ;;
 745   --disable-plugins) plugins="no"
 746   ;;
 747   --enable-containers) use_containers="yes"
 748   ;;
 749   --disable-containers) use_containers="no"
 750   ;;
 751   --gdb=*) gdb_bin="$optarg"
 752   ;;
 753   # everything else has the same name in configure and meson
 754   --*) meson_option_parse "$opt" "$optarg"
 755   ;;
 756   esac
 757 done
 758
 759 if ! test -e "$source_path/.git"
 760 then
 761     git_submodules_action="ignore"
 762 fi
 763
 764 # test for any invalid configuration combinations
 765 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 766     error_exit "Can't enable plugins on non-TCG builds"
 767 fi
 768
 769 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
 770     && test "$download" = disabled
 771 then
 772     echo
 773     echo "ERROR: missing subprojects"
 774     echo
 775     if test -e "$source_path/.git"; then
 776         echo "--disable-download specified but subprojects were not"
 777         echo 'checked out.  Please invoke "meson subprojects download"'
 778         echo "before configuring QEMU, or remove --disable-download"
 779         echo "from the command line."
 780     else
 781         echo "This is not a GIT checkout but subproject content appears to"
 782         echo "be missing. Do not use 'git archive' or GitHub download links"
 783         echo "to acquire QEMU source archives. Non-GIT builds are only"
 784         echo "supported with source archives linked from:"
 785         echo
 786         echo "  https://www.qemu.org/download/#source"
 787         echo
 788         echo "Developers working with GIT can use scripts/archive-source.sh"
 789         echo "if they need to create valid source archives."
 790     fi
 791     echo
 792     exit 1
 793 fi
 794
 795 default_target_list=""
 796 mak_wilds=""
 797
 798 if [ "$linux_user" != no ]; then
 799     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 800         linux_user=yes
 801     elif [ "$linux_user" = yes ]; then
 802         error_exit "linux-user not supported on this architecture"
 803     fi
 804 fi
 805 if [ "$bsd_user" != no ]; then
 806     if [ "$bsd_user" = "" ]; then
 807         test $targetos = freebsd && bsd_user=yes
 808     fi
 809     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 810         error_exit "bsd-user not supported on this host OS"
 811     fi
 812 fi
 813 if [ "$softmmu" = "yes" ]; then
 814     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 815 fi
 816 if [ "$linux_user" = "yes" ]; then
 817     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 818 fi
 819 if [ "$bsd_user" = "yes" ]; then
 820     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 821 fi
 822
 823 for config in $mak_wilds; do
 824     target="$(basename "$config" .mak)"
 825     if echo "$target_list_exclude" | grep -vq "$target"; then
 826         default_target_list="${default_target_list} $target"
 827     fi
 828 done
 829
 830 if test x"$show_help" = x"yes" ; then
 831 cat << EOF
 832
 833 Usage: configure [options]
 834 Options: [defaults in brackets after descriptions]
 835
 836 Standard options:
 837   --help                   print this message
 838   --prefix=PREFIX          install in PREFIX [$prefix]
 839   --target-list=LIST       set target list (default: build all)
 840 $(echo Available targets: $default_target_list | \
 841   fold -s -w 53 | sed -e 's/^/                           /')
 842   --target-list-exclude=LIST exclude a set of targets from the default target-list
 843
 844 Advanced options (experts only):
 845   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 846   --cc=CC                  use C compiler CC [$cc]
 847   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 848                            build time
 849   --cxx=CXX                use C++ compiler CXX [$cxx]
 850   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 851   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 852   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 853   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 854   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 855   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 856   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 857   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 858   --python=PYTHON          use specified python [$python]
 859   --ninja=NINJA            use specified ninja [$ninja]
 860   --smbd=SMBD              use specified smbd [$smbd]
 861   --static                 enable static build [$static]
 862   --bindir=PATH            install binaries in PATH
 863   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 864   --without-default-features default all --enable-* options to "disabled"
 865   --without-default-devices  do not include any device that is not needed to
 866                            start the emulator (only use if you are including
 867                            desired devices in configs/devices/)
 868   --with-devices-ARCH=NAME override default configs/devices
 869   --enable-debug           enable common debug build options
 870   --disable-werror         disable compilation abort on warning
 871   --cpu=CPU                Build for host CPU [$cpu]
 872   --enable-plugins
 873                            enable plugins via shared library loading
 874   --disable-containers     don't use containers for cross-building
 875   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 876 EOF
 877   meson_options_help
 878 cat << EOF
 879   system          all system emulation targets
 880   user            supported user emulation targets
 881   linux-user      all linux usermode emulation targets
 882   bsd-user        all BSD usermode emulation targets
 883   pie             Position Independent Executables
 884   debug-tcg       TCG debugging (default is disabled)
 885
 886 NOTE: The object files are built at the place where configure is launched
 887 EOF
 888 exit 0
 889 fi
 890
 891 # Remove old dependency files to make sure that they get properly regenerated
 892 rm -f ./*/config-devices.mak.d
 893
 894 if test -z "$python"
 895 then
 896     # If first_python is set, there was a binary somewhere even though
 897     # it was not suitable.  Use it for the error message.
 898     if test -n "$first_python"; then
 899         error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
 900             "Use --python=/path/to/python to specify a supported Python."
 901     else
 902         error_exit "Python not found. Use --python=/path/to/python"
 903     fi
 904 fi
 905
 906 if ! check_py_version "$python"; then
 907   error_exit "Cannot use '$python', Python >= 3.7 is required." \
 908              "Use --python=/path/to/python to specify a supported Python." \
 909              "Maybe try:" \
 910              "  openSUSE Leap 15.3+: zypper install python39" \
 911              "  CentOS 8: dnf install python38"
 912 fi
 913
 914 # Resolve PATH
 915 python="$(command -v "$python")"
 916
 917 # Create a Python virtual environment using our configured python.
 918 # The stdout of this script will be the location of a symlink that
 919 # points to the configured Python.
 920 # Entry point scripts for pip, meson, and sphinx are generated if those
 921 # packages are present.
 922
 923 # Defaults assumed for now:
 924 # - venv is cleared if it exists already;
 925 # - venv is allowed to use system packages;
 926 # - all setup can be performed offline;
 927 # - missing packages may be fetched from PyPI,
 928 #   unless --disable-download is passed.
 929 # - pip is not installed into the venv when possible,
 930 #   but ensurepip is called as a fallback when necessary.
 931
 932 echo "python determined to be '$python'"
 933 echo "python version: $($python --version)"
 934
 935 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
 936 if test "$?" -ne 0 ; then
 937     error_exit "python venv creation failed"
 938 fi
 939
 940 # Suppress writing compiled files
 941 python="$python -B"
 942 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
 943
 944 mkvenv_flags=""
 945 if test "$download" = "enabled" ; then
 946     mkvenv_flags="--online"
 947 fi
 948
 949 if ! $mkvenv ensure \
 950      $mkvenv_flags \
 951      --dir "${source_path}/python/wheels" \
 952      --diagnose "meson" \
 953      "meson>=0.63.0" ;
 954 then
 955     exit 1
 956 fi
 957
 958 # At this point, we expect Meson to be installed and available.
 959 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
 960 # We ignore PATH completely here: we want to use the venv's Meson
 961 # *exclusively*.
 962
 963 meson="$(cd pyvenv/bin; pwd)/meson"
 964
 965 # Conditionally ensure Sphinx is installed.
 966
 967 mkvenv_flags=""
 968 if test "$download" = "enabled" -a "$docs" = "enabled" ; then
 969     mkvenv_flags="--online"
 970 fi
 971
 972 if test "$docs" != "disabled" ; then
 973     if ! $mkvenv ensure \
 974          $mkvenv_flags \
 975          --diagnose "sphinx-build" \
 976          "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
 977     then
 978         if test "$docs" = "enabled" ; then
 979             exit 1
 980         fi
 981         echo "Sphinx not found/usable, disabling docs."
 982         docs=disabled
 983     else
 984         docs=enabled
 985     fi
 986 fi
 987
 988 # Probe for ninja
 989
 990 if test -z "$ninja"; then
 991     for c in ninja ninja-build samu; do
 992         if has $c; then
 993             ninja=$(command -v "$c")
 994             break
 995         fi
 996     done
 997     if test -z "$ninja"; then
 998       error_exit "Cannot find Ninja"
 999     fi
1000 fi
1001
1002 # Consult white-list to determine whether to enable werror
1003 # by default.  Only enable by default for git builds
1004 if test -z "$werror" ; then
1005     if test -e "$source_path/.git" && \
1006         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1007         werror="yes"
1008     else
1009         werror="no"
1010     fi
1011 fi
1012
1013 if test "$targetos" = "bogus"; then
1014     # Now that we know that we're not printing the help and that
1015     # the compiler works (so the results of the check_defines we used
1016     # to identify the OS are reliable), if we didn't recognize the
1017     # host OS we should stop now.
1018     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1019 fi
1020
1021 if test "$static" = "yes" ; then
1022   if test "$plugins" = "yes"; then
1023     error_exit "static and plugins are mutually incompatible"
1024   else
1025     plugins="no"
1026   fi
1027 fi
1028 test "$plugins" = "" && plugins=yes
1029
1030 cat > $TMPC << EOF
1031
1032 #ifdef __linux__
1033 #  define THREAD __thread
1034 #else
1035 #  define THREAD
1036 #endif
1037 static THREAD int tls_var;
1038 int main(void) { return tls_var; }
1039 EOF
1040
1041 if test "$static" = "yes"; then
1042   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1043     pie="yes"
1044   elif test "$pie" = "yes"; then
1045     error_exit "-static-pie not available due to missing toolchain support"
1046   else
1047     pie="no"
1048   fi
1049 elif test "$pie" != "no"; then
1050   if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1051     pie="yes"
1052   elif test "$pie" = "yes"; then
1053     error_exit "PIE not available due to missing toolchain support"
1054   else
1055     echo "Disabling PIE due to missing toolchain support"
1056     pie="no"
1057   fi
1058 fi
1059
1060 ##########################################
1061
1062 if test -z "${target_list+xxx}" ; then
1063     default_targets=yes
1064     for target in $default_target_list; do
1065         target_list="$target_list $target"
1066     done
1067     target_list="${target_list# }"
1068 else
1069     default_targets=no
1070     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1071     for target in $target_list; do
1072         # Check that we recognised the target name; this allows a more
1073         # friendly error message than if we let it fall through.
1074         case " $default_target_list " in
1075             *" $target "*)
1076                 ;;
1077             *)
1078                 error_exit "Unknown target name '$target'"
1079                 ;;
1080         esac
1081     done
1082 fi
1083
1084 # see if system emulation was really requested
1085 case " $target_list " in
1086   *"-softmmu "*) softmmu=yes
1087   ;;
1088   *) softmmu=no
1089   ;;
1090 esac
1091
1092 if test "$tcg" = "auto"; then
1093   if test -z "$target_list"; then
1094     tcg="disabled"
1095   else
1096     tcg="enabled"
1097   fi
1098 fi
1099
1100 ##########################################
1101 # big/little endian test
1102 cat > $TMPC << EOF
1103 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1104 # error LITTLE
1105 #endif
1106 int main(void) { return 0; }
1107 EOF
1108
1109 if ! compile_prog ; then
1110   bigendian="no"
1111 else
1112   cat > $TMPC << EOF
1113 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1114 # error BIG
1115 #endif
1116 int main(void) { return 0; }
1117 EOF
1118
1119   if ! compile_prog ; then
1120     bigendian="yes"
1121   else
1122     echo big/little test failed
1123     exit 1
1124   fi
1125 fi
1126
1127 ########################################
1128 # check if ccache is interfering with
1129 # semantic analysis of macros
1130
1131 unset CCACHE_CPP2
1132 ccache_cpp2=no
1133 cat > $TMPC << EOF
1134 static const int Z = 1;
1135 #define fn() ({ Z; })
1136 #define TAUT(X) ((X) == Z)
1137 #define PAREN(X, Y) (X == Y)
1138 #define ID(X) (X)
1139 int main(void)
1140 {
1141     int x = 0, y = 0;
1142     x = ID(x);
1143     x = fn();
1144     fn();
1145     if (PAREN(x, y)) return 0;
1146     if (TAUT(Z)) return 0;
1147     return 0;
1148 }
1149 EOF
1150
1151 if ! compile_object "-Werror"; then
1152     ccache_cpp2=yes
1153 fi
1154
1155 ##########################################
1156 # functions to probe cross compilers
1157
1158 container="no"
1159 runc=""
1160 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1161     case $($python "$source_path"/tests/docker/docker.py probe) in
1162         *docker) container=docker ;;
1163         podman) container=podman ;;
1164         no) container=no ;;
1165     esac
1166     if test "$container" != "no"; then
1167         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1168         runc=$($python "$source_path"/tests/docker/docker.py probe)
1169     fi
1170 fi
1171
1172 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1173 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1174 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1175 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1176 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1177 : ${cross_prefix_armeb="$cross_prefix_arm"}
1178 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1179 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1180 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1181 : ${cross_prefix_i386="i686-linux-gnu-"}
1182 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1183 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1184 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1185 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1186 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1187 : ${cross_prefix_mips="mips-linux-gnu-"}
1188 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1189 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1190 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1191 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1192 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1193 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1194 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1195 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1196 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1197 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1198
1199 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1200 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1201 : ${cross_cc_armeb="$cross_cc_arm"}
1202 : ${cross_cc_cflags_armeb="-mbig-endian"}
1203 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1204 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1205 : ${cross_cc_cflags_i386="-m32"}
1206 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1207 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1208 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1209 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1210 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1211 : ${cross_cc_sparc="$cross_cc_sparc64"}
1212 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1213 : ${cross_cc_cflags_x86_64="-m64"}
1214
1215 compute_target_variable() {
1216   eval "$2="
1217   if eval test -n "\"\${cross_prefix_$1}\""; then
1218     if eval has "\"\${cross_prefix_$1}\$3\""; then
1219       eval "$2=\"\${cross_prefix_$1}\$3\""
1220     fi
1221   fi
1222 }
1223
1224 have_target() {
1225   for i; do
1226     case " $target_list " in
1227       *" $i "*) return 0;;
1228       *) ;;
1229     esac
1230   done
1231   return 1
1232 }
1233
1234 # probe_target_compiler TARGET
1235 #
1236 # Look for a compiler for the given target, either native or cross.
1237 # Set variables target_* if a compiler is found, and container_cross_*
1238 # if a Docker-based cross-compiler image is known for the target.
1239 # Set got_cross_cc to yes/no depending on whether a non-container-based
1240 # compiler was found.
1241 #
1242 # If TARGET is a user-mode emulation target, also set build_static to
1243 # "y" if static linking is possible.
1244 #
1245 probe_target_compiler() {
1246   # reset all output variables
1247   got_cross_cc=no
1248   container_image=
1249   container_hosts=
1250   container_cross_cc=
1251   container_cross_ar=
1252   container_cross_as=
1253   container_cross_ld=
1254   container_cross_nm=
1255   container_cross_objcopy=
1256   container_cross_ranlib=
1257   container_cross_strip=
1258
1259   target_arch=${1%%-*}
1260   case $target_arch in
1261     aarch64) container_hosts="x86_64 aarch64" ;;
1262     alpha) container_hosts=x86_64 ;;
1263     arm) container_hosts="x86_64 aarch64" ;;
1264     cris) container_hosts=x86_64 ;;
1265     hexagon) container_hosts=x86_64 ;;
1266     hppa) container_hosts=x86_64 ;;
1267     i386) container_hosts=x86_64 ;;
1268     loongarch64) container_hosts=x86_64 ;;
1269     m68k) container_hosts=x86_64 ;;
1270     microblaze) container_hosts=x86_64 ;;
1271     mips64el) container_hosts=x86_64 ;;
1272     mips64) container_hosts=x86_64 ;;
1273     mipsel) container_hosts=x86_64 ;;
1274     mips) container_hosts=x86_64 ;;
1275     nios2) container_hosts=x86_64 ;;
1276     ppc) container_hosts=x86_64 ;;
1277     ppc64|ppc64le) container_hosts=x86_64 ;;
1278     riscv64) container_hosts=x86_64 ;;
1279     s390x) container_hosts=x86_64 ;;
1280     sh4) container_hosts=x86_64 ;;
1281     sparc64) container_hosts=x86_64 ;;
1282     tricore) container_hosts=x86_64 ;;
1283     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1284     xtensa*) container_hosts=x86_64 ;;
1285   esac
1286
1287   for host in $container_hosts; do
1288     test "$container" != no || continue
1289     test "$host" = "$cpu" || continue
1290     case $target_arch in
1291       aarch64)
1292         # We don't have any bigendian build tools so we only use this for AArch64
1293         container_image=debian-arm64-cross
1294         container_cross_prefix=aarch64-linux-gnu-
1295         container_cross_cc=${container_cross_prefix}gcc-10
1296         ;;
1297       alpha)
1298         container_image=debian-alpha-cross
1299         container_cross_prefix=alpha-linux-gnu-
1300         ;;
1301       arm)
1302         # We don't have any bigendian build tools so we only use this for ARM
1303         container_image=debian-armhf-cross
1304         container_cross_prefix=arm-linux-gnueabihf-
1305         ;;
1306       cris)
1307         container_image=fedora-cris-cross
1308         container_cross_prefix=cris-linux-gnu-
1309         ;;
1310       hexagon)
1311         container_image=debian-hexagon-cross
1312         container_cross_prefix=hexagon-unknown-linux-musl-
1313         container_cross_cc=${container_cross_prefix}clang
1314         ;;
1315       hppa)
1316         container_image=debian-hppa-cross
1317         container_cross_prefix=hppa-linux-gnu-
1318         ;;
1319       i386)
1320         container_image=fedora-i386-cross
1321         container_cross_prefix=
1322         ;;
1323       loongarch64)
1324         container_image=debian-loongarch-cross
1325         container_cross_prefix=loongarch64-unknown-linux-gnu-
1326         ;;
1327       m68k)
1328         container_image=debian-m68k-cross
1329         container_cross_prefix=m68k-linux-gnu-
1330         ;;
1331       microblaze)
1332         container_image=debian-microblaze-cross
1333         container_cross_prefix=microblaze-linux-musl-
1334         ;;
1335       mips64el)
1336         container_image=debian-mips64el-cross
1337         container_cross_prefix=mips64el-linux-gnuabi64-
1338         ;;
1339       mips64)
1340         container_image=debian-mips64-cross
1341         container_cross_prefix=mips64-linux-gnuabi64-
1342         ;;
1343       mipsel)
1344         container_image=debian-mipsel-cross
1345         container_cross_prefix=mipsel-linux-gnu-
1346         ;;
1347       mips)
1348         container_image=debian-mips-cross
1349         container_cross_prefix=mips-linux-gnu-
1350         ;;
1351       nios2)
1352         container_image=debian-nios2-cross
1353         container_cross_prefix=nios2-linux-gnu-
1354         ;;
1355       ppc)
1356         container_image=debian-powerpc-test-cross
1357         container_cross_prefix=powerpc-linux-gnu-
1358         container_cross_cc=${container_cross_prefix}gcc-10
1359         ;;
1360       ppc64|ppc64le)
1361         container_image=debian-powerpc-test-cross
1362         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1363         container_cross_cc=${container_cross_prefix}gcc-10
1364         ;;
1365       riscv64)
1366         container_image=debian-riscv64-test-cross
1367         container_cross_prefix=riscv64-linux-gnu-
1368         ;;
1369       s390x)
1370         container_image=debian-s390x-cross
1371         container_cross_prefix=s390x-linux-gnu-
1372         ;;
1373       sh4)
1374         container_image=debian-sh4-cross
1375         container_cross_prefix=sh4-linux-gnu-
1376         ;;
1377       sparc64)
1378         container_image=debian-sparc64-cross
1379         container_cross_prefix=sparc64-linux-gnu-
1380         ;;
1381       tricore)
1382         container_image=debian-tricore-cross
1383         container_cross_prefix=tricore-
1384         container_cross_as=tricore-as
1385         container_cross_ld=tricore-ld
1386         container_cross_cc=tricore-gcc
1387         break
1388         ;;
1389       x86_64)
1390         container_image=debian-amd64-cross
1391         container_cross_prefix=x86_64-linux-gnu-
1392         ;;
1393       xtensa*)
1394         container_hosts=x86_64
1395         container_image=debian-xtensa-cross
1396
1397         # default to the dc232b cpu
1398         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1399         ;;
1400     esac
1401     : ${container_cross_cc:=${container_cross_prefix}gcc}
1402     : ${container_cross_ar:=${container_cross_prefix}ar}
1403     : ${container_cross_as:=${container_cross_prefix}as}
1404     : ${container_cross_ld:=${container_cross_prefix}ld}
1405     : ${container_cross_nm:=${container_cross_prefix}nm}
1406     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1407     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1408     : ${container_cross_strip:=${container_cross_prefix}strip}
1409   done
1410
1411   try=cross
1412   case "$target_arch:$cpu" in
1413     aarch64_be:aarch64 | \
1414     armeb:arm | \
1415     i386:x86_64 | \
1416     mips*:mips64 | \
1417     ppc*:ppc64 | \
1418     sparc:sparc64 | \
1419     "$cpu:$cpu")
1420       try='native cross' ;;
1421   esac
1422   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1423   for thistry in $try; do
1424     case $thistry in
1425     native)
1426       target_cc=$cc
1427       target_ccas=$ccas
1428       target_ar=$ar
1429       target_as=$as
1430       target_ld=$ld
1431       target_nm=$nm
1432       target_objcopy=$objcopy
1433       target_ranlib=$ranlib
1434       target_strip=$strip
1435       ;;
1436     cross)
1437       target_cc=
1438       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1439         if eval has "\"\${cross_cc_$target_arch}\""; then
1440           eval "target_cc=\"\${cross_cc_$target_arch}\""
1441         fi
1442       else
1443         compute_target_variable $target_arch target_cc gcc
1444       fi
1445       target_ccas=$target_cc
1446       compute_target_variable $target_arch target_ar ar
1447       compute_target_variable $target_arch target_as as
1448       compute_target_variable $target_arch target_ld ld
1449       compute_target_variable $target_arch target_nm nm
1450       compute_target_variable $target_arch target_objcopy objcopy
1451       compute_target_variable $target_arch target_ranlib ranlib
1452       compute_target_variable $target_arch target_strip strip
1453       ;;
1454     esac
1455
1456     if test -n "$target_cc"; then
1457       case $target_arch in
1458         i386|x86_64)
1459           if $target_cc --version | grep -qi "clang"; then
1460             continue
1461           fi
1462           ;;
1463       esac
1464     elif test -n "$target_as" && test -n "$target_ld"; then
1465       # Special handling for assembler only targets
1466       case $target in
1467         tricore-softmmu)
1468           build_static=
1469           got_cross_cc=yes
1470           break
1471           ;;
1472         *)
1473           continue
1474           ;;
1475       esac
1476     else
1477       continue
1478     fi
1479
1480     write_c_skeleton
1481     case $1 in
1482       *-softmmu)
1483         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1484           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1485           got_cross_cc=yes
1486           break
1487         fi
1488         ;;
1489       *)
1490         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1491           build_static=y
1492           got_cross_cc=yes
1493           break
1494         fi
1495         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1496           build_static=
1497           got_cross_cc=yes
1498           break
1499         fi
1500         ;;
1501     esac
1502   done
1503   if test $got_cross_cc != yes; then
1504     build_static=
1505     target_cc=
1506     target_ccas=
1507     target_ar=
1508     target_as=
1509     target_ld=
1510     target_nm=
1511     target_objcopy=
1512     target_ranlib=
1513     target_strip=
1514   fi
1515   test -n "$target_cc"
1516 }
1517
1518 write_target_makefile() {
1519   echo "EXTRA_CFLAGS=$target_cflags"
1520   if test -z "$target_cc" && test -z "$target_as"; then
1521     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1522     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1523     if test -n "$container_cross_cc"; then
1524       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1525       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1526     fi
1527     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1528     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1529     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1530     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1531     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1532     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1533     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1534   else
1535     if test -n "$target_cc"; then
1536       echo "CC=$target_cc"
1537       echo "CCAS=$target_ccas"
1538     fi
1539     if test -n "$target_ar"; then
1540       echo "AR=$target_ar"
1541     fi
1542     if test -n "$target_as"; then
1543       echo "AS=$target_as"
1544     fi
1545     if test -n "$target_ld"; then
1546       echo "LD=$target_ld"
1547     fi
1548     if test -n "$target_nm"; then
1549       echo "NM=$target_nm"
1550     fi
1551     if test -n "$target_objcopy"; then
1552       echo "OBJCOPY=$target_objcopy"
1553     fi
1554     if test -n "$target_ranlib"; then
1555       echo "RANLIB=$target_ranlib"
1556     fi
1557     if test -n "$target_strip"; then
1558       echo "STRIP=$target_strip"
1559     fi
1560   fi
1561 }
1562
1563 #######################################
1564 # cross-compiled firmware targets
1565
1566 # Set up build tree symlinks that point back into the source tree
1567 # (these can be both files and directories).
1568 # Caution: avoid adding files or directories here using wildcards. This
1569 # will result in problems later if a new file matching the wildcard is
1570 # added to the source tree -- nothing will cause configure to be rerun
1571 # so the build tree will be missing the link back to the new file, and
1572 # tests might fail. Prefer to keep the relevant files in their own
1573 # directory and symlink the directory instead.
1574 LINKS="Makefile"
1575 LINKS="$LINKS docs/config"
1576 LINKS="$LINKS pc-bios/optionrom/Makefile"
1577 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1578 LINKS="$LINKS pc-bios/vof/Makefile"
1579 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1580 LINKS="$LINKS tests/avocado tests/data"
1581 LINKS="$LINKS tests/qemu-iotests/check"
1582 LINKS="$LINKS python"
1583 LINKS="$LINKS contrib/plugins/Makefile "
1584 for f in $LINKS ; do
1585     if [ -e "$source_path/$f" ]; then
1586         symlink "$source_path/$f" "$f"
1587     fi
1588 done
1589
1590 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1591
1592 # Mac OS X ships with a broken assembler
1593 roms=
1594 if have_target i386-softmmu x86_64-softmmu && \
1595         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1596         test "$targetos" != "haiku" && \
1597         probe_target_compiler i386-softmmu; then
1598     roms="pc-bios/optionrom"
1599     config_mak=pc-bios/optionrom/config.mak
1600     echo "# Automatically generated by configure - do not modify" > $config_mak
1601     echo "TOPSRC_DIR=$source_path" >> $config_mak
1602     write_target_makefile >> $config_mak
1603 fi
1604
1605 if have_target ppc-softmmu ppc64-softmmu && \
1606         probe_target_compiler ppc-softmmu; then
1607     roms="$roms pc-bios/vof"
1608     config_mak=pc-bios/vof/config.mak
1609     echo "# Automatically generated by configure - do not modify" > $config_mak
1610     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1611     write_target_makefile >> $config_mak
1612 fi
1613
1614 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1615 # (which is the lowest architecture level that Clang supports)
1616 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1617     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1618   write_c_skeleton
1619   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1620   has_z900=$?
1621   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1622     if [ $has_z900 != 0 ]; then
1623       echo "WARNING: Your compiler does not support the z900!"
1624       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1625     fi
1626     roms="$roms pc-bios/s390-ccw"
1627     config_mak=pc-bios/s390-ccw/config-host.mak
1628     echo "# Automatically generated by configure - do not modify" > $config_mak
1629     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1630     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1631     write_target_makefile >> $config_mak
1632   fi
1633 fi
1634
1635 #######################################
1636 # generate config-host.mak
1637
1638 config_host_mak="config-host.mak"
1639
1640 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1641 echo >> $config_host_mak
1642
1643 echo all: >> $config_host_mak
1644
1645 if test "$debug_tcg" = "yes" ; then
1646   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1647 fi
1648 if test "$mingw32" = "yes" ; then
1649   echo "CONFIG_WIN32=y" >> $config_host_mak
1650   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1651   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1652   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1653 else
1654   echo "CONFIG_POSIX=y" >> $config_host_mak
1655 fi
1656
1657 if test "$linux" = "yes" ; then
1658   echo "CONFIG_LINUX=y" >> $config_host_mak
1659 fi
1660
1661 if test "$darwin" = "yes" ; then
1662   echo "CONFIG_DARWIN=y" >> $config_host_mak
1663 fi
1664
1665 if test "$solaris" = "yes" ; then
1666   echo "CONFIG_SOLARIS=y" >> $config_host_mak
1667 fi
1668 echo "SRC_PATH=$source_path" >> $config_host_mak
1669 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1670
1671 # XXX: suppress that
1672 if [ "$bsd" = "yes" ] ; then
1673   echo "CONFIG_BSD=y" >> $config_host_mak
1674 fi
1675
1676 if test "$plugins" = "yes" ; then
1677     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1678 fi
1679
1680 if test -n "$gdb_bin"; then
1681     gdb_version=$($gdb_bin --version | head -n 1)
1682     if version_ge ${gdb_version##* } 9.1; then
1683         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1684         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1685     else
1686         gdb_bin=""
1687     fi
1688 fi
1689
1690 if test "$container" != no; then
1691     echo "ENGINE=$container" >> $config_host_mak
1692     echo "RUNC=$runc" >> $config_host_mak
1693 fi
1694 echo "ROMS=$roms" >> $config_host_mak
1695 echo "PYTHON=$python" >> $config_host_mak
1696 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1697 echo "MESON=$meson" >> $config_host_mak
1698 echo "NINJA=$ninja" >> $config_host_mak
1699 echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
1700 echo "CC=$cc" >> $config_host_mak
1701 echo "EXESUF=$EXESUF" >> $config_host_mak
1702
1703 # use included Linux headers
1704 if test "$linux" = "yes" ; then
1705   mkdir -p linux-headers
1706   case "$cpu" in
1707   i386|x86_64)
1708     linux_arch=x86
1709     ;;
1710   ppc|ppc64)
1711     linux_arch=powerpc
1712     ;;
1713   s390x)
1714     linux_arch=s390
1715     ;;
1716   aarch64)
1717     linux_arch=arm64
1718     ;;
1719   loongarch*)
1720     linux_arch=loongarch
1721     ;;
1722   mips64)
1723     linux_arch=mips
1724     ;;
1725   *)
1726     # For most CPUs the kernel architecture name and QEMU CPU name match.
1727     linux_arch="$cpu"
1728     ;;
1729   esac
1730     # For non-KVM architectures we will not have asm headers
1731     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
1732       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1733     fi
1734 fi
1735
1736 for target in $target_list; do
1737     target_dir="$target"
1738     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1739     mkdir -p "$target_dir"
1740     case $target in
1741         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1742         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1743     esac
1744 done
1745
1746 if test "$default_targets" = "yes"; then
1747   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1748 fi
1749
1750 if test "$ccache_cpp2" = "yes"; then
1751   echo "export CCACHE_CPP2=y" >> $config_host_mak
1752 fi
1753
1754 # tests/tcg configuration
1755 (config_host_mak=tests/tcg/config-host.mak
1756 mkdir -p tests/tcg
1757 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1758 echo "SRC_PATH=$source_path" >> $config_host_mak
1759 echo "HOST_CC=$host_cc" >> $config_host_mak
1760
1761 # versioned checked in the main config_host.mak above
1762 if test -n "$gdb_bin"; then
1763     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1764 fi
1765 if test "$plugins" = "yes" ; then
1766     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1767 fi
1768
1769 tcg_tests_targets=
1770 for target in $target_list; do
1771   arch=${target%%-*}
1772
1773   case $target in
1774     xtensa*-linux-user)
1775       # the toolchain is not complete with headers, only build softmmu tests
1776       continue
1777       ;;
1778     *-softmmu)
1779       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1780       qemu="qemu-system-$arch"
1781       ;;
1782     *-linux-user|*-bsd-user)
1783       qemu="qemu-$arch"
1784       ;;
1785   esac
1786
1787   if probe_target_compiler $target || test -n "$container_image"; then
1788       test -n "$container_image" && build_static=y
1789       mkdir -p "tests/tcg/$target"
1790       config_target_mak=tests/tcg/$target/config-target.mak
1791       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1792       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1793       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1794       echo "TARGET=$target" >> "$config_target_mak"
1795       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1796       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1797       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1798
1799       # will GDB work with these binaries?
1800       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1801           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1802       fi
1803
1804       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1805       tcg_tests_targets="$tcg_tests_targets $target"
1806   fi
1807 done
1808
1809 if test "$tcg" = "enabled"; then
1810     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1811 fi
1812 )
1813
1814 if test "$skip_meson" = no; then
1815   cross="config-meson.cross.new"
1816   meson_quote() {
1817     test $# = 0 && return
1818     echo "'$(echo $* | sed "s/ /','/g")'"
1819   }
1820
1821   echo "# Automatically generated by configure - do not modify" > $cross
1822   echo "[properties]" >> $cross
1823
1824   # unroll any custom device configs
1825   for a in $device_archs; do
1826       eval "c=\$devices_${a}"
1827       echo "${a}-softmmu = '$c'" >> $cross
1828   done
1829
1830   echo "[built-in options]" >> $cross
1831   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1832   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1833   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1834   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1835   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1836   echo "[binaries]" >> $cross
1837   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1838   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1839   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1840   echo "ar = [$(meson_quote $ar)]" >> $cross
1841   echo "nm = [$(meson_quote $nm)]" >> $cross
1842   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1843   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1844   if has $sdl2_config; then
1845     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1846   fi
1847   echo "strip = [$(meson_quote $strip)]" >> $cross
1848   echo "widl = [$(meson_quote $widl)]" >> $cross
1849   echo "windres = [$(meson_quote $windres)]" >> $cross
1850   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1851   if test "$cross_compile" = "yes"; then
1852     cross_arg="--cross-file config-meson.cross"
1853     echo "[host_machine]" >> $cross
1854     echo "system = '$targetos'" >> $cross
1855     case "$cpu" in
1856         i386)
1857             echo "cpu_family = 'x86'" >> $cross
1858             ;;
1859         *)
1860             echo "cpu_family = '$cpu'" >> $cross
1861             ;;
1862     esac
1863     echo "cpu = '$cpu'" >> $cross
1864     if test "$bigendian" = "yes" ; then
1865         echo "endian = 'big'" >> $cross
1866     else
1867         echo "endian = 'little'" >> $cross
1868     fi
1869   else
1870     cross_arg="--native-file config-meson.cross"
1871   fi
1872   mv $cross config-meson.cross
1873
1874   rm -rf meson-private meson-info meson-logs
1875
1876   # Built-in options
1877   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1878   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1879   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1880   test "$static" = yes && meson_option_add -Dprefer_static=true
1881   test "$pie" = no && meson_option_add -Db_pie=false
1882   test "$werror" = yes && meson_option_add -Dwerror=true
1883
1884   # QEMU options
1885   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1886   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1887   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1888   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1889   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1890   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1891   run_meson() {
1892     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1893   }
1894   eval run_meson $meson_options
1895   if test "$?" -ne 0 ; then
1896       error_exit "meson setup failed"
1897   fi
1898   echo "$meson" > build.ninja.stamp
1899 else
1900   if test -f meson-private/cmd_line.txt; then
1901     # Adjust old command line options that were removed
1902     # sed -i is not portable
1903     perl -i -ne '
1904       /^sphinx_build/ && next;
1905       print;' meson-private/cmd_line.txt
1906   fi
1907 fi
1908
1909 # Save the configure command line for later reuse.
1910 cat <<EOD >config.status
1911 #!/bin/sh
1912 # Generated by configure.
1913 # Run this file to recreate the current configuration.
1914 # Compiler output produced by configure, useful for debugging
1915 # configure, is in config.log if it exists.
1916 EOD
1917
1918 preserve_env() {
1919     envname=$1
1920
1921     eval envval=\$$envname
1922
1923     if test -n "$envval"
1924     then
1925         echo "$envname='$envval'" >> config.status
1926         echo "export $envname" >> config.status
1927     else
1928         echo "unset $envname" >> config.status
1929     fi
1930 }
1931
1932 # Preserve various env variables that influence what
1933 # features/build target configure will detect
1934 preserve_env AR
1935 preserve_env AS
1936 preserve_env CC
1937 preserve_env CFLAGS
1938 preserve_env CXX
1939 preserve_env CXXFLAGS
1940 preserve_env LD
1941 preserve_env LDFLAGS
1942 preserve_env LD_LIBRARY_PATH
1943 preserve_env NM
1944 preserve_env OBJCFLAGS
1945 preserve_env OBJCOPY
1946 preserve_env PATH
1947 preserve_env PKG_CONFIG
1948 preserve_env PKG_CONFIG_LIBDIR
1949 preserve_env PKG_CONFIG_PATH
1950 preserve_env PYTHON
1951 preserve_env QEMU_GA_MANUFACTURER
1952 preserve_env QEMU_GA_DISTRO
1953 preserve_env QEMU_GA_VERSION
1954 preserve_env SDL2_CONFIG
1955 preserve_env SMBD
1956 preserve_env STRIP
1957 preserve_env WIDL
1958 preserve_env WINDRES
1959 preserve_env WINDMC
1960
1961 printf "exec" >>config.status
1962 for i in "$0" "$@"; do
1963   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1964 done
1965 echo ' "$@"' >>config.status
1966 chmod +x config.status
1967
1968 rm -r "$TMPDIR1"