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 container_engine="auto"
 184 cpu=""
 185 cross_compile="no"
 186 cross_prefix=""
 187 host_cc="cc"
 188 EXTRA_CFLAGS=""
 189 EXTRA_CXXFLAGS=""
 190 EXTRA_OBJCFLAGS=""
 191 EXTRA_LDFLAGS=""
 192
 193 # Default value for a variable defining feature "foo".
 194 #  * foo="no"  feature will only be used if --enable-foo arg is given
 195 #  * foo=""    feature will be searched for, and if found, will be used
 196 #              unless --disable-foo is given
 197 #  * foo="yes" this value will only be set by --enable-foo flag.
 198 #              feature will searched for,
 199 #              if not found, configure exits with error
 200 #
 201 # Always add --enable-foo and --disable-foo command line args.
 202 # Distributions want to ensure that several features are compiled in, and it
 203 # is impossible without a --enable-foo that exits if a feature is not found.
 204 default_feature=""
 205
 206 for opt do
 207   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 208   case "$opt" in
 209   --cross-prefix=*) cross_prefix="$optarg"
 210                     cross_compile="yes"
 211   ;;
 212   --cc=*) CC="$optarg"
 213   ;;
 214   --cxx=*) CXX="$optarg"
 215   ;;
 216   --objcc=*) objcc="$optarg"
 217   ;;
 218   --cpu=*) cpu="$optarg"
 219   ;;
 220   --extra-cflags=*)
 221     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 222     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 223     EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 224     ;;
 225   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 226   ;;
 227   --extra-objcflags=*) EXTRA_OBJCFLAGS="$EXTRA_OBJCFLAGS $optarg"
 228   ;;
 229   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 230   ;;
 231   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 232   ;;
 233   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 234                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 235   ;;
 236   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 237                 eval "cross_cc_${cc_arch}=\$optarg"
 238   ;;
 239   --cross-prefix-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-prefix-FOO option"
 240   ;;
 241   --cross-prefix-*) cc_arch=${opt#--cross-prefix-}; cc_arch=${cc_arch%%=*}
 242                     eval "cross_prefix_${cc_arch}=\$optarg"
 243   ;;
 244   --without-default-features) default_feature="no"
 245   ;;
 246   esac
 247 done
 248
 249 default_cflags='-O2 -g'
 250 git_submodules_action="update"
 251 git="git"
 252 docs="auto"
 253 EXESUF=""
 254 prefix="/usr/local"
 255 qemu_suffix="qemu"
 256 system="yes"
 257 linux_user=""
 258 bsd_user=""
 259 plugins="$default_feature"
 260 subdirs=""
 261 ninja=""
 262 python=
 263 download="enabled"
 264 bindir="bin"
 265 skip_meson=no
 266 use_containers="yes"
 267 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 268 gdb_arches=""
 269 werror=""
 270
 271 # Don't accept a target_list environment variable.
 272 unset target_list
 273 unset target_list_exclude
 274
 275 # The following Meson options are handled manually (still they
 276 # are included in the automatically generated help message)
 277 # because they automatically enable/disable other options
 278 tcg="auto"
 279 cfi="false"
 280
 281 # Meson has PIE as a boolean rather than enabled/disabled/auto,
 282 # and we also need to check for -static-pie before Meson runs
 283 # which requires knowing whether --static is enabled.
 284 pie=""
 285 static="no"
 286
 287 # Preferred compiler:
 288 #  ${CC} (if set)
 289 #  ${cross_prefix}gcc (if cross-prefix specified)
 290 #  system compiler
 291 if test -z "${CC}${cross_prefix}"; then
 292   cc="cc"
 293 else
 294   cc="${CC-${cross_prefix}gcc}"
 295 fi
 296
 297 if test -z "${CXX}${cross_prefix}"; then
 298   cxx="c++"
 299 else
 300   cxx="${CXX-${cross_prefix}g++}"
 301 fi
 302
 303 # Preferred ObjC compiler:
 304 # $objcc (if set, i.e. via --objcc option)
 305 # ${cross_prefix}clang (if cross-prefix specified)
 306 # clang (if available)
 307 # $cc
 308 if test -z "${objcc}${cross_prefix}"; then
 309   if has clang; then
 310     objcc=clang
 311   else
 312     objcc="$cc"
 313   fi
 314 else
 315   objcc="${objcc-${cross_prefix}clang}"
 316 fi
 317
 318 ar="${AR-${cross_prefix}ar}"
 319 as="${AS-${cross_prefix}as}"
 320 ccas="${CCAS-$cc}"
 321 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 322 ld="${LD-${cross_prefix}ld}"
 323 ranlib="${RANLIB-${cross_prefix}ranlib}"
 324 nm="${NM-${cross_prefix}nm}"
 325 smbd="$SMBD"
 326 strip="${STRIP-${cross_prefix}strip}"
 327 widl="${WIDL-${cross_prefix}widl}"
 328 windres="${WINDRES-${cross_prefix}windres}"
 329 windmc="${WINDMC-${cross_prefix}windmc}"
 330 pkg_config="${PKG_CONFIG-${cross_prefix}pkg-config}"
 331 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 332
 333 check_define() {
 334 cat > $TMPC <<EOF
 335 #if !defined($1)
 336 #error $1 not defined
 337 #endif
 338 int main(void) { return 0; }
 339 EOF
 340   compile_object
 341 }
 342
 343 write_c_skeleton() {
 344     cat > $TMPC <<EOF
 345 int main(void) { return 0; }
 346 EOF
 347 }
 348
 349 if check_define __linux__ ; then
 350   targetos=linux
 351 elif check_define _WIN32 ; then
 352   targetos=windows
 353 elif check_define __OpenBSD__ ; then
 354   targetos=openbsd
 355 elif check_define __sun__ ; then
 356   targetos=sunos
 357 elif check_define __HAIKU__ ; then
 358   targetos=haiku
 359 elif check_define __FreeBSD__ ; then
 360   targetos=freebsd
 361 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 362   targetos=gnu/kfreebsd
 363 elif check_define __DragonFly__ ; then
 364   targetos=dragonfly
 365 elif check_define __NetBSD__; then
 366   targetos=netbsd
 367 elif check_define __APPLE__; then
 368   targetos=darwin
 369 else
 370   # This is a fatal error, but don't report it yet, because we
 371   # might be going to just print the --help text, or it might
 372   # be the result of a missing compiler.
 373   targetos=bogus
 374 fi
 375
 376 # OS specific
 377
 378 case $targetos in
 379 windows)
 380   plugins="no"
 381   pie="no"
 382 ;;
 383 haiku)
 384   pie="no"
 385 ;;
 386 esac
 387
 388 if test ! -z "$cpu" ; then
 389   # command line argument
 390   :
 391 elif check_define __i386__ ; then
 392   cpu="i386"
 393 elif check_define __x86_64__ ; then
 394   if check_define __ILP32__ ; then
 395     cpu="x32"
 396   else
 397     cpu="x86_64"
 398   fi
 399 elif check_define __sparc__ ; then
 400   if check_define __arch64__ ; then
 401     cpu="sparc64"
 402   else
 403     cpu="sparc"
 404   fi
 405 elif check_define _ARCH_PPC ; then
 406   if check_define _ARCH_PPC64 ; then
 407     if check_define _LITTLE_ENDIAN ; then
 408       cpu="ppc64le"
 409     else
 410       cpu="ppc64"
 411     fi
 412   else
 413     cpu="ppc"
 414   fi
 415 elif check_define __mips__ ; then
 416   cpu="mips"
 417 elif check_define __s390__ ; then
 418   if check_define __s390x__ ; then
 419     cpu="s390x"
 420   else
 421     cpu="s390"
 422   fi
 423 elif check_define __riscv ; then
 424   if check_define _LP64 ; then
 425     cpu="riscv64"
 426   else
 427     cpu="riscv32"
 428   fi
 429 elif check_define __arm__ ; then
 430   cpu="arm"
 431 elif check_define __aarch64__ ; then
 432   cpu="aarch64"
 433 elif check_define __loongarch64 ; then
 434   cpu="loongarch64"
 435 else
 436   # Using uname is really broken, but it is just a fallback for architectures
 437   # that are going to use TCI anyway
 438   cpu=$(uname -m)
 439   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 440 fi
 441
 442 # Normalise host CPU name to the values used by Meson cross files and in source
 443 # directories, and set multilib cflags.  The canonicalization isn't really
 444 # necessary, because the architectures that we check for should not hit the
 445 # 'uname -m' case, but better safe than sorry in case --cpu= is used.
 446 #
 447 # Note that this case should only have supported host CPUs, not guests.
 448 # Please keep it sorted and synchronized with meson.build's host_arch.
 449 host_arch=
 450 linux_arch=
 451 case "$cpu" in
 452   aarch64)
 453     host_arch=aarch64
 454     linux_arch=arm64
 455     ;;
 456
 457   armv*b|armv*l|arm)
 458     cpu=arm
 459     host_arch=arm
 460     linux_arch=arm
 461     ;;
 462
 463   i386|i486|i586|i686)
 464     cpu="i386"
 465     host_arch=i386
 466     linux_arch=x86
 467     CPU_CFLAGS="-m32"
 468     ;;
 469
 470   loongarch*)
 471     cpu=loongarch64
 472     host_arch=loongarch64
 473     ;;
 474
 475   mips64*)
 476     cpu=mips64
 477     host_arch=mips
 478     linux_arch=mips
 479     ;;
 480   mips*)
 481     cpu=mips
 482     host_arch=mips
 483     linux_arch=mips
 484     ;;
 485
 486   ppc)
 487     host_arch=ppc
 488     linux_arch=powerpc
 489     CPU_CFLAGS="-m32"
 490     ;;
 491   ppc64)
 492     host_arch=ppc64
 493     linux_arch=powerpc
 494     CPU_CFLAGS="-m64 -mbig-endian"
 495     ;;
 496   ppc64le)
 497     cpu=ppc64
 498     host_arch=ppc64
 499     linux_arch=powerpc
 500     CPU_CFLAGS="-m64 -mlittle-endian"
 501     ;;
 502
 503   riscv32 | riscv64)
 504     host_arch=riscv
 505     linux_arch=riscv
 506     ;;
 507
 508   s390)
 509     linux_arch=s390
 510     CPU_CFLAGS="-m31"
 511     ;;
 512   s390x)
 513     host_arch=s390x
 514     linux_arch=s390
 515     CPU_CFLAGS="-m64"
 516     ;;
 517
 518   sparc|sun4[cdmuv])
 519     cpu=sparc
 520     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
 521     ;;
 522   sparc64)
 523     host_arch=sparc64
 524     CPU_CFLAGS="-m64 -mcpu=ultrasparc"
 525     ;;
 526
 527   x32)
 528     cpu="x86_64"
 529     host_arch=x86_64
 530     linux_arch=x86
 531     CPU_CFLAGS="-mx32"
 532     ;;
 533   x86_64|amd64)
 534     cpu="x86_64"
 535     host_arch=x86_64
 536     linux_arch=x86
 537     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 538     # If we truly care, we should simply detect this case at
 539     # runtime and generate the fallback to serial emulation.
 540     CPU_CFLAGS="-m64 -mcx16"
 541     ;;
 542 esac
 543
 544 if test -n "$host_arch" && {
 545     ! test -d "$source_path/linux-user/include/host/$host_arch" ||
 546     ! test -d "$source_path/common-user/host/$host_arch"; }; then
 547     error_exit "linux-user/include/host/$host_arch does not exist." \
 548        "This is a bug in the configure script, please report it."
 549 fi
 550 if test -n "$linux_arch" && ! test -d "$source_path/linux-headers/asm-$linux_arch"; then
 551     error_exit "linux-headers/asm-$linux_arch does not exist." \
 552        "This is a bug in the configure script, please report it."
 553 fi
 554
 555 check_py_version() {
 556     # We require python >= 3.8.
 557     # NB: a True python conditional creates a non-zero return code (Failure)
 558     "$1" -c 'import sys; sys.exit(sys.version_info < (3,8))'
 559 }
 560
 561 first_python=
 562 if test -z "${PYTHON}"; then
 563     # A bare 'python' is traditionally python 2.x, but some distros
 564     # have it as python 3.x, so check in both places.
 565     for binary in python3 python python3.12 python3.11 \
 566                           python3.10 python3.9 python3.8; do
 567         if has "$binary"; then
 568             python=$(command -v "$binary")
 569             if check_py_version "$python"; then
 570                 # This one is good.
 571                 first_python=
 572                 break
 573             else
 574                 first_python=$python
 575             fi
 576         fi
 577     done
 578 else
 579     # Same as above, but only check the environment variable.
 580     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 581     python=$(command -v "$PYTHON")
 582     if check_py_version "$python"; then
 583         # This one is good.
 584         first_python=
 585     else
 586         first_python=$first_python
 587     fi
 588 fi
 589
 590 # Check for ancillary tools used in testing
 591 genisoimage=
 592 for binary in genisoimage mkisofs
 593 do
 594     if has $binary
 595     then
 596         genisoimage=$(command -v "$binary")
 597         break
 598     fi
 599 done
 600
 601 if test "$targetos" = "windows" ; then
 602   EXESUF=".exe"
 603   prefix="/qemu"
 604   bindir=""
 605   qemu_suffix=""
 606 fi
 607
 608 meson_option_build_array() {
 609   printf '['
 610   (if test "$targetos" = windows; then
 611     IFS=\;
 612   else
 613     IFS=:
 614   fi
 615   for e in $1; do
 616     printf '"""'
 617     # backslash escape any '\' and '"' characters
 618     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 619     printf '""",'
 620   done)
 621   printf ']\n'
 622 }
 623
 624 . "$source_path/scripts/meson-buildoptions.sh"
 625
 626 meson_options=
 627 meson_option_add() {
 628   meson_options="$meson_options $(quote_sh "$1")"
 629 }
 630 meson_option_parse() {
 631   meson_options="$meson_options $(_meson_option_parse "$@")"
 632   if test $? -eq 1; then
 633     echo "ERROR: unknown option $1"
 634     echo "Try '$0 --help' for more information"
 635     exit 1
 636   fi
 637 }
 638
 639 for opt do
 640   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 641   case "$opt" in
 642   --help|-h) show_help=yes
 643   ;;
 644   --version|-V) exec cat "$source_path/VERSION"
 645   ;;
 646   --prefix=*) prefix="$optarg"
 647   ;;
 648   --cross-prefix=*)
 649   ;;
 650   --cc=*)
 651   ;;
 652   --host-cc=*) host_cc="$optarg"
 653   ;;
 654   --cxx=*)
 655   ;;
 656   --objcc=*)
 657   ;;
 658   --make=*)
 659   ;;
 660   --install=*)
 661   ;;
 662   --python=*) python="$optarg"
 663   ;;
 664   --skip-meson) skip_meson=yes
 665   ;;
 666   --ninja=*) ninja="$optarg"
 667   ;;
 668   --smbd=*) smbd="$optarg"
 669   ;;
 670   --extra-cflags=*)
 671   ;;
 672   --extra-cxxflags=*)
 673   ;;
 674   --extra-objcflags=*)
 675   ;;
 676   --extra-ldflags=*)
 677   ;;
 678   --cross-cc-*)
 679   ;;
 680   --cross-prefix-*)
 681   ;;
 682   --enable-docs) docs=enabled
 683   ;;
 684   --disable-docs) docs=disabled
 685   ;;
 686   --cpu=*)
 687   ;;
 688   --target-list=*) target_list="$optarg"
 689                    if test "$target_list_exclude"; then
 690                        error_exit "Can't mix --target-list with --target-list-exclude"
 691                    fi
 692   ;;
 693   --target-list-exclude=*) target_list_exclude="$optarg"
 694                    if test "$target_list"; then
 695                        error_exit "Can't mix --target-list-exclude with --target-list"
 696                    fi
 697   ;;
 698   --with-default-devices) meson_option_add -Ddefault_devices=true
 699   ;;
 700   --without-default-devices) meson_option_add -Ddefault_devices=false
 701   ;;
 702   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 703   ;;
 704   --with-devices-*) device_arch=${opt#--with-devices-};
 705                     device_arch=${device_arch%%=*}
 706                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 707                     if test -f "$cf"; then
 708                         device_archs="$device_archs $device_arch"
 709                         eval "devices_${device_arch}=\$optarg"
 710                     else
 711                         error_exit "File $cf does not exist"
 712                     fi
 713   ;;
 714   --without-default-features) # processed above
 715   ;;
 716   --static) static="yes"
 717   ;;
 718   --bindir=*) bindir="$optarg"
 719   ;;
 720   --with-suffix=*) qemu_suffix="$optarg"
 721   ;;
 722   --host=*|--build=*|\
 723   --disable-dependency-tracking|\
 724   --sbindir=*|--sharedstatedir=*|\
 725   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 726   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 727     # These switches are silently ignored, for compatibility with
 728     # autoconf-generated configure scripts. This allows QEMU's
 729     # configure to be used by RPM and similar macros that set
 730     # lots of directory switches by default.
 731   ;;
 732   --enable-debug)
 733       # Enable debugging options that aren't excessively noisy
 734       meson_option_parse --enable-debug-tcg ""
 735       meson_option_parse --enable-debug-graph-lock ""
 736       meson_option_parse --enable-debug-mutex ""
 737       meson_option_add -Doptimization=0
 738       default_cflags='-O0 -g'
 739   ;;
 740   --disable-tcg) tcg="disabled"
 741                  plugins="no"
 742   ;;
 743   --enable-tcg) tcg="enabled"
 744   ;;
 745   --disable-system) system="no"
 746   ;;
 747   --enable-system) system="yes"
 748   ;;
 749   --disable-user)
 750       linux_user="no" ;
 751       bsd_user="no" ;
 752   ;;
 753   --enable-user) ;;
 754   --disable-linux-user) linux_user="no"
 755   ;;
 756   --enable-linux-user) linux_user="yes"
 757   ;;
 758   --disable-bsd-user) bsd_user="no"
 759   ;;
 760   --enable-bsd-user) bsd_user="yes"
 761   ;;
 762   --enable-pie) pie="yes"
 763   ;;
 764   --disable-pie) pie="no"
 765   ;;
 766   --enable-werror) werror="yes"
 767   ;;
 768   --disable-werror) werror="no"
 769   ;;
 770   --enable-cfi)
 771       cfi="true";
 772       meson_option_add -Db_lto=true
 773   ;;
 774   --disable-cfi) cfi="false"
 775   ;;
 776   --disable-download) download="disabled"; git_submodules_action=validate;
 777   ;;
 778   --enable-download) download="enabled"; git_submodules_action=update;
 779   ;;
 780   --enable-plugins) if test "$targetos" = "windows"; then
 781                         error_exit "TCG plugins not currently supported on Windows platforms"
 782                     else
 783                         plugins="yes"
 784                     fi
 785   ;;
 786   --disable-plugins) plugins="no"
 787   ;;
 788   --enable-containers) use_containers="yes"
 789   ;;
 790   --disable-containers) use_containers="no"
 791   ;;
 792   --container-engine=*) container_engine="$optarg"
 793   ;;
 794   --gdb=*) gdb_bin="$optarg"
 795   ;;
 796   # everything else has the same name in configure and meson
 797   --*) meson_option_parse "$opt" "$optarg"
 798   ;;
 799   # Pass through -Dxxxx options to meson
 800   -D*) meson_options="$meson_options $opt"
 801   ;;
 802   esac
 803 done
 804
 805 if ! test -e "$source_path/.git"
 806 then
 807     git_submodules_action="validate"
 808 fi
 809
 810 # test for any invalid configuration combinations
 811 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 812     error_exit "Can't enable plugins on non-TCG builds"
 813 fi
 814
 815 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
 816     && test "$download" = disabled
 817 then
 818     echo
 819     echo "ERROR: missing subprojects"
 820     echo
 821     if test -e "$source_path/.git"; then
 822         echo "--disable-download specified but subprojects were not"
 823         echo 'checked out.  Please invoke "meson subprojects download"'
 824         echo "before configuring QEMU, or remove --disable-download"
 825         echo "from the command line."
 826     else
 827         echo "This is not a GIT checkout but subproject content appears to"
 828         echo "be missing. Do not use 'git archive' or GitHub download links"
 829         echo "to acquire QEMU source archives. Non-GIT builds are only"
 830         echo "supported with source archives linked from:"
 831         echo
 832         echo "  https://www.qemu.org/download/#source"
 833         echo
 834         echo "Developers working with GIT can use scripts/archive-source.sh"
 835         echo "if they need to create valid source archives."
 836     fi
 837     echo
 838     exit 1
 839 fi
 840
 841 default_target_list=""
 842 mak_wilds=""
 843
 844 if [ -n "$host_arch" ] && [ -d "$source_path/common-user/host/$host_arch" ]; then
 845     if [ "$linux_user" != no ]; then
 846         if [ "$targetos" = linux ]; then
 847             linux_user=yes
 848         elif [ "$linux_user" = yes ]; then
 849             error_exit "linux-user not supported on this architecture"
 850         fi
 851         if [ "$linux_user" = "yes" ]; then
 852             mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 853         fi
 854     fi
 855     if [ "$bsd_user" != no ]; then
 856         if [ "$bsd_user" = "" ]; then
 857             test $targetos = freebsd && bsd_user=yes
 858         fi
 859         if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 860             error_exit "bsd-user not supported on this host OS"
 861         fi
 862         if [ "$bsd_user" = "yes" ]; then
 863             mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 864         fi
 865     fi
 866 else
 867     if [ "$linux_user" = yes ] || [ "$bsd_user" = yes ]; then
 868         error_exit "user mode emulation not supported on this architecture"
 869     fi
 870 fi
 871 if [ "$system" = "yes" ]; then
 872     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 873 fi
 874
 875 for config in $mak_wilds; do
 876     target="$(basename "$config" .mak)"
 877     if echo "$target_list_exclude" | grep -vq "$target"; then
 878         default_target_list="${default_target_list} $target"
 879     fi
 880 done
 881
 882 if test x"$show_help" = x"yes" ; then
 883 cat << EOF
 884
 885 Usage: configure [options]
 886 Options: [defaults in brackets after descriptions]
 887
 888 Standard options:
 889   --help                   print this message
 890   --prefix=PREFIX          install in PREFIX [$prefix]
 891   --target-list=LIST       set target list (default: build all)
 892 $(echo Available targets: $default_target_list | \
 893   fold -s -w 53 | sed -e 's/^/                           /')
 894   --target-list-exclude=LIST exclude a set of targets from the default target-list
 895
 896 Advanced options (experts only):
 897   -Dmesonoptname=val       passthrough option to meson unmodified
 898   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 899   --cc=CC                  use C compiler CC [$cc]
 900   --host-cc=CC             when cross compiling, use C compiler CC for code run
 901                            at build time [$host_cc]
 902   --cxx=CXX                use C++ compiler CXX [$cxx]
 903   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 904   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 905   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 906   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 907   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 908   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 909   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 910   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 911   --python=PYTHON          use specified python [$python]
 912   --ninja=NINJA            use specified ninja [$ninja]
 913   --smbd=SMBD              use specified smbd [$smbd]
 914   --static                 enable static build [$static]
 915   --bindir=PATH            install binaries in PATH
 916   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 917   --without-default-features default all --enable-* options to "disabled"
 918   --without-default-devices  do not include any device that is not needed to
 919                            start the emulator (only use if you are including
 920                            desired devices in configs/devices/)
 921   --with-devices-ARCH=NAME override default configs/devices
 922   --enable-debug           enable common debug build options
 923   --disable-werror         disable compilation abort on warning
 924   --cpu=CPU                Build for host CPU [$cpu]
 925   --enable-plugins
 926                            enable plugins via shared library loading
 927   --disable-containers     don't use containers for cross-building
 928   --container-engine=TYPE  which container engine to use [$container_engine]
 929   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 930 EOF
 931   meson_options_help
 932 cat << EOF
 933   system          all system emulation targets
 934   user            supported user emulation targets
 935   linux-user      all linux usermode emulation targets
 936   bsd-user        all BSD usermode emulation targets
 937   pie             Position Independent Executables
 938
 939 NOTE: The object files are built at the place where configure is launched
 940 EOF
 941 exit 0
 942 fi
 943
 944 # Remove old dependency files to make sure that they get properly regenerated
 945 rm -f ./*/config-devices.mak.d
 946
 947 if test -z "$python"
 948 then
 949     # If first_python is set, there was a binary somewhere even though
 950     # it was not suitable.  Use it for the error message.
 951     if test -n "$first_python"; then
 952         error_exit "Cannot use '$first_python', Python >= 3.8 is required." \
 953             "Use --python=/path/to/python to specify a supported Python."
 954     else
 955         error_exit "Python not found. Use --python=/path/to/python"
 956     fi
 957 fi
 958
 959 if ! check_py_version "$python"; then
 960   error_exit "Cannot use '$python', Python >= 3.8 is required." \
 961              "Use --python=/path/to/python to specify a supported Python." \
 962              "Maybe try:" \
 963              "  openSUSE Leap 15.3+: zypper install python39" \
 964              "  CentOS 8: dnf install python38"
 965 fi
 966
 967 # Resolve PATH
 968 python="$(command -v "$python")"
 969
 970 # Create a Python virtual environment using our configured python.
 971 # The stdout of this script will be the location of a symlink that
 972 # points to the configured Python.
 973 # Entry point scripts for pip, meson, and sphinx are generated if those
 974 # packages are present.
 975
 976 # Defaults assumed for now:
 977 # - venv is cleared if it exists already;
 978 # - venv is allowed to use system packages;
 979 # - all setup can be performed offline;
 980 # - missing packages may be fetched from PyPI,
 981 #   unless --disable-download is passed.
 982 # - pip is not installed into the venv when possible,
 983 #   but ensurepip is called as a fallback when necessary.
 984
 985 echo "python determined to be '$python'"
 986 echo "python version: $($python --version)"
 987
 988 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
 989 if test "$?" -ne 0 ; then
 990     error_exit "python venv creation failed"
 991 fi
 992
 993 # Suppress writing compiled files
 994 python="$python -B"
 995 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
 996
 997 # Finish preparing the virtual environment using vendored .whl files
 998
 999 if $python -c 'import sys; sys.exit(sys.version_info >= (3,11))'; then
1000     $mkvenv ensure --dir "${source_path}/python/wheels" \
1001         'tomli>=1.2.0' || exit 1
1002 fi
1003 $mkvenv ensuregroup --dir "${source_path}/python/wheels" \
1004      ${source_path}/pythondeps.toml meson || exit 1
1005
1006 # At this point, we expect Meson to be installed and available.
1007 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
1008 # We ignore PATH completely here: we want to use the venv's Meson
1009 # *exclusively*.
1010
1011 meson="$(cd pyvenv/bin; pwd)/meson"
1012
1013 # Conditionally ensure Sphinx is installed.
1014
1015 mkvenv_flags=""
1016 if test "$download" = "enabled" -a "$docs" = "enabled" ; then
1017     mkvenv_flags="--online"
1018 fi
1019
1020 if test "$docs" != "disabled" ; then
1021     if ! $mkvenv ensuregroup \
1022          $mkvenv_flags \
1023          ${source_path}/pythondeps.toml docs;
1024     then
1025         if test "$docs" = "enabled" ; then
1026             exit 1
1027         fi
1028         echo "Sphinx not found/usable, disabling docs."
1029         docs=disabled
1030     else
1031         docs=enabled
1032     fi
1033 fi
1034
1035 # Probe for ninja
1036
1037 if test -z "$ninja"; then
1038     for c in ninja ninja-build samu; do
1039         if has $c; then
1040             ninja=$(command -v "$c")
1041             break
1042         fi
1043     done
1044     if test -z "$ninja"; then
1045       error_exit "Cannot find Ninja"
1046     fi
1047 fi
1048
1049 # Consult white-list to determine whether to enable werror
1050 # by default.  Only enable by default for git builds
1051 if test -z "$werror" ; then
1052     if test -e "$source_path/.git" && \
1053         { test "$targetos" = linux || test "$targetos" = "windows"; }; then
1054         werror="yes"
1055     else
1056         werror="no"
1057     fi
1058 fi
1059
1060 if test "$targetos" = "bogus"; then
1061     # Now that we know that we're not printing the help and that
1062     # the compiler works (so the results of the check_defines we used
1063     # to identify the OS are reliable), if we didn't recognize the
1064     # host OS we should stop now.
1065     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1066 fi
1067
1068 if test "$static" = "yes" ; then
1069   if test "$plugins" = "yes"; then
1070     error_exit "static and plugins are mutually incompatible"
1071   else
1072     plugins="no"
1073   fi
1074 fi
1075 test "$plugins" = "" && plugins=yes
1076 if test "$plugins" = "yes"; then
1077   subdirs="$subdirs contrib/plugins"
1078 fi
1079
1080 cat > $TMPC << EOF
1081
1082 #ifdef __linux__
1083 #  define THREAD __thread
1084 #else
1085 #  define THREAD
1086 #endif
1087 static THREAD int tls_var;
1088 int main(void) { return tls_var; }
1089 EOF
1090
1091 if test "$static" = "yes"; then
1092   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1093     pie="yes"
1094   elif test "$pie" = "yes"; then
1095     error_exit "-static-pie not available due to missing toolchain support"
1096   else
1097     pie="no"
1098   fi
1099 elif test "$pie" != "no"; then
1100   if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1101     pie="yes"
1102   elif test "$pie" = "yes"; then
1103     error_exit "PIE not available due to missing toolchain support"
1104   else
1105     echo "Disabling PIE due to missing toolchain support"
1106     pie="no"
1107   fi
1108 fi
1109
1110 ##########################################
1111
1112 if test -z "${target_list+xxx}" ; then
1113     default_targets=yes
1114     for target in $default_target_list; do
1115         target_list="$target_list $target"
1116     done
1117     target_list="${target_list# }"
1118 else
1119     default_targets=no
1120     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1121     for target in $target_list; do
1122         # Check that we recognised the target name; this allows a more
1123         # friendly error message than if we let it fall through.
1124         case " $default_target_list " in
1125             *" $target "*)
1126                 ;;
1127             *)
1128                 error_exit "Unknown target name '$target'"
1129                 ;;
1130         esac
1131     done
1132 fi
1133
1134 if test "$tcg" = "auto"; then
1135   if test -z "$target_list"; then
1136     tcg="disabled"
1137   else
1138     tcg="enabled"
1139   fi
1140 fi
1141
1142 ##########################################
1143 # big/little endian test
1144 cat > $TMPC << EOF
1145 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1146 # error LITTLE
1147 #endif
1148 int main(void) { return 0; }
1149 EOF
1150
1151 if ! compile_prog ; then
1152   bigendian="no"
1153 else
1154   cat > $TMPC << EOF
1155 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1156 # error BIG
1157 #endif
1158 int main(void) { return 0; }
1159 EOF
1160
1161   if ! compile_prog ; then
1162     bigendian="yes"
1163   else
1164     echo big/little test failed
1165     exit 1
1166   fi
1167 fi
1168
1169 ########################################
1170 # check if ccache is interfering with
1171 # semantic analysis of macros
1172
1173 unset CCACHE_CPP2
1174 ccache_cpp2=no
1175 cat > $TMPC << EOF
1176 static const int Z = 1;
1177 #define fn() ({ Z; })
1178 #define TAUT(X) ((X) == Z)
1179 #define PAREN(X, Y) (X == Y)
1180 #define ID(X) (X)
1181 int main(void)
1182 {
1183     int x = 0, y = 0;
1184     x = ID(x);
1185     x = fn();
1186     fn();
1187     if (PAREN(x, y)) return 0;
1188     if (TAUT(Z)) return 0;
1189     return 0;
1190 }
1191 EOF
1192
1193 if ! compile_object "-Werror"; then
1194     ccache_cpp2=yes
1195 fi
1196
1197 ##########################################
1198 # functions to probe cross compilers
1199
1200 container="no"
1201 runc=""
1202 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1203     case $($python "$source_path"/tests/docker/docker.py --engine "$container_engine" probe) in
1204         *docker) container=docker ;;
1205         podman) container=podman ;;
1206         no) container=no ;;
1207     esac
1208     if test "$container" != "no"; then
1209         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1210         runc=$container
1211     fi
1212 fi
1213
1214 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1215 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1216 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1217 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1218 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1219 : ${cross_prefix_armeb="$cross_prefix_arm"}
1220 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1221 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1222 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1223 : ${cross_prefix_i386="i686-linux-gnu-"}
1224 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1225 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1226 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1227 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1228 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1229 : ${cross_prefix_mips="mips-linux-gnu-"}
1230 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1231 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1232 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1233 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1234 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1235 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1236 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1237 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1238 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1239 : ${cross_prefix_tricore="tricore-"}
1240 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1241
1242 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1243 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1244 : ${cross_cc_armeb="$cross_cc_arm"}
1245 : ${cross_cc_cflags_armeb="-mbig-endian"}
1246 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1247 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1248 : ${cross_cc_cflags_i386="-m32"}
1249 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1250 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1251 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1252 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1253 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1254 : ${cross_cc_sparc="$cross_cc_sparc64"}
1255 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1256 : ${cross_cc_cflags_x86_64="-m64"}
1257
1258 compute_target_variable() {
1259   eval "$2="
1260   if eval test -n "\"\${cross_prefix_$1}\""; then
1261     if eval has "\"\${cross_prefix_$1}\$3\""; then
1262       eval "$2=\"\${cross_prefix_$1}\$3\""
1263     fi
1264   fi
1265 }
1266
1267 have_target() {
1268   for i; do
1269     case " $target_list " in
1270       *" $i "*) return 0;;
1271       *) ;;
1272     esac
1273   done
1274   return 1
1275 }
1276
1277 # probe_target_compiler TARGET
1278 #
1279 # Look for a compiler for the given target, either native or cross.
1280 # Set variables target_* if a compiler is found, and container_cross_*
1281 # if a Docker-based cross-compiler image is known for the target.
1282 # Set got_cross_cc to yes/no depending on whether a non-container-based
1283 # compiler was found.
1284 #
1285 # If TARGET is a user-mode emulation target, also set build_static to
1286 # "y" if static linking is possible.
1287 #
1288 probe_target_compiler() {
1289   # reset all output variables
1290   got_cross_cc=no
1291   container_image=
1292   container_hosts=
1293   container_cross_cc=
1294   container_cross_ar=
1295   container_cross_as=
1296   container_cross_ld=
1297   container_cross_nm=
1298   container_cross_objcopy=
1299   container_cross_ranlib=
1300   container_cross_strip=
1301
1302   target_arch=${1%%-*}
1303   case $target_arch in
1304     aarch64) container_hosts="x86_64 aarch64" ;;
1305     alpha) container_hosts=x86_64 ;;
1306     arm) container_hosts="x86_64 aarch64" ;;
1307     cris) container_hosts=x86_64 ;;
1308     hexagon) container_hosts=x86_64 ;;
1309     hppa) container_hosts=x86_64 ;;
1310     i386) container_hosts=x86_64 ;;
1311     loongarch64) container_hosts=x86_64 ;;
1312     m68k) container_hosts=x86_64 ;;
1313     microblaze) container_hosts=x86_64 ;;
1314     mips64el) container_hosts=x86_64 ;;
1315     mips64) container_hosts=x86_64 ;;
1316     mipsel) container_hosts=x86_64 ;;
1317     mips) container_hosts=x86_64 ;;
1318     nios2) container_hosts=x86_64 ;;
1319     ppc) container_hosts=x86_64 ;;
1320     ppc64|ppc64le) container_hosts=x86_64 ;;
1321     riscv64) container_hosts=x86_64 ;;
1322     s390x) container_hosts=x86_64 ;;
1323     sh4) container_hosts=x86_64 ;;
1324     sparc64) container_hosts=x86_64 ;;
1325     tricore) container_hosts=x86_64 ;;
1326     x86_64) container_hosts="aarch64 ppc64le x86_64" ;;
1327     xtensa*) container_hosts=x86_64 ;;
1328   esac
1329
1330   for host in $container_hosts; do
1331     test "$container" != no || continue
1332     test "$host" = "$cpu" || continue
1333     case $target_arch in
1334       aarch64)
1335         # We don't have any bigendian build tools so we only use this for AArch64
1336         container_image=debian-arm64-cross
1337         container_cross_prefix=aarch64-linux-gnu-
1338         container_cross_cc=${container_cross_prefix}gcc
1339         ;;
1340       alpha)
1341         container_image=debian-alpha-cross
1342         container_cross_prefix=alpha-linux-gnu-
1343         ;;
1344       arm)
1345         # We don't have any bigendian build tools so we only use this for ARM
1346         container_image=debian-armhf-cross
1347         container_cross_prefix=arm-linux-gnueabihf-
1348         ;;
1349       cris)
1350         container_image=fedora-cris-cross
1351         container_cross_prefix=cris-linux-gnu-
1352         ;;
1353       hexagon)
1354         container_image=debian-hexagon-cross
1355         container_cross_prefix=hexagon-unknown-linux-musl-
1356         container_cross_cc=${container_cross_prefix}clang
1357         ;;
1358       hppa)
1359         container_image=debian-hppa-cross
1360         container_cross_prefix=hppa-linux-gnu-
1361         ;;
1362       i386)
1363         container_image=fedora-i386-cross
1364         container_cross_prefix=
1365         ;;
1366       loongarch64)
1367         container_image=debian-loongarch-cross
1368         container_cross_prefix=loongarch64-unknown-linux-gnu-
1369         ;;
1370       m68k)
1371         container_image=debian-m68k-cross
1372         container_cross_prefix=m68k-linux-gnu-
1373         ;;
1374       microblaze)
1375         container_image=debian-microblaze-cross
1376         container_cross_prefix=microblaze-linux-musl-
1377         ;;
1378       mips64el)
1379         container_image=debian-mips64el-cross
1380         container_cross_prefix=mips64el-linux-gnuabi64-
1381         ;;
1382       mips64)
1383         container_image=debian-mips64-cross
1384         container_cross_prefix=mips64-linux-gnuabi64-
1385         ;;
1386       mipsel)
1387         container_image=debian-mipsel-cross
1388         container_cross_prefix=mipsel-linux-gnu-
1389         ;;
1390       mips)
1391         container_image=debian-mips-cross
1392         container_cross_prefix=mips-linux-gnu-
1393         ;;
1394       nios2)
1395         container_image=debian-nios2-cross
1396         container_cross_prefix=nios2-linux-gnu-
1397         ;;
1398       ppc)
1399         container_image=debian-powerpc-test-cross
1400         container_cross_prefix=powerpc-linux-gnu-
1401         container_cross_cc=${container_cross_prefix}gcc
1402         ;;
1403       ppc64|ppc64le)
1404         container_image=debian-powerpc-test-cross
1405         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1406         container_cross_cc=${container_cross_prefix}gcc-10
1407         ;;
1408       riscv64)
1409         container_image=debian-riscv64-test-cross
1410         container_cross_prefix=riscv64-linux-gnu-
1411         ;;
1412       s390x)
1413         container_image=debian-s390x-cross
1414         container_cross_prefix=s390x-linux-gnu-
1415         ;;
1416       sh4)
1417         container_image=debian-sh4-cross
1418         container_cross_prefix=sh4-linux-gnu-
1419         ;;
1420       sparc64)
1421         container_image=debian-sparc64-cross
1422         container_cross_prefix=sparc64-linux-gnu-
1423         ;;
1424       tricore)
1425         container_image=debian-tricore-cross
1426         container_cross_prefix=tricore-
1427         ;;
1428       x86_64)
1429         container_image=debian-amd64-cross
1430         container_cross_prefix=x86_64-linux-gnu-
1431         ;;
1432       xtensa*)
1433         container_image=debian-xtensa-cross
1434
1435         # default to the dc232b cpu
1436         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1437         ;;
1438     esac
1439     : ${container_cross_cc:=${container_cross_prefix}gcc}
1440     : ${container_cross_ar:=${container_cross_prefix}ar}
1441     : ${container_cross_as:=${container_cross_prefix}as}
1442     : ${container_cross_ld:=${container_cross_prefix}ld}
1443     : ${container_cross_nm:=${container_cross_prefix}nm}
1444     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1445     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1446     : ${container_cross_strip:=${container_cross_prefix}strip}
1447   done
1448
1449   try=cross
1450   case "$target_arch:$cpu" in
1451     aarch64_be:aarch64 | \
1452     armeb:arm | \
1453     i386:x86_64 | \
1454     mips*:mips64 | \
1455     ppc*:ppc64 | \
1456     sparc:sparc64 | \
1457     "$cpu:$cpu")
1458       try='native cross' ;;
1459   esac
1460   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1461   for thistry in $try; do
1462     case $thistry in
1463     native)
1464       target_cc=$cc
1465       target_ccas=$ccas
1466       target_ar=$ar
1467       target_as=$as
1468       target_ld=$ld
1469       target_nm=$nm
1470       target_objcopy=$objcopy
1471       target_ranlib=$ranlib
1472       target_strip=$strip
1473       ;;
1474     cross)
1475       target_cc=
1476       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1477         if eval has "\"\${cross_cc_$target_arch}\""; then
1478           eval "target_cc=\"\${cross_cc_$target_arch}\""
1479         fi
1480       else
1481         compute_target_variable $target_arch target_cc gcc
1482       fi
1483       target_ccas=$target_cc
1484       compute_target_variable $target_arch target_ar ar
1485       compute_target_variable $target_arch target_as as
1486       compute_target_variable $target_arch target_ld ld
1487       compute_target_variable $target_arch target_nm nm
1488       compute_target_variable $target_arch target_objcopy objcopy
1489       compute_target_variable $target_arch target_ranlib ranlib
1490       compute_target_variable $target_arch target_strip strip
1491       ;;
1492     esac
1493
1494     if test -n "$target_cc"; then
1495       case $target_arch in
1496         i386|x86_64)
1497           if $target_cc --version | grep -qi "clang"; then
1498             continue
1499           fi
1500           ;;
1501       esac
1502     elif test -n "$target_as" && test -n "$target_ld"; then
1503       # Special handling for assembler only targets
1504       case $target in
1505         tricore-softmmu)
1506           build_static=
1507           got_cross_cc=yes
1508           break
1509           ;;
1510         *)
1511           continue
1512           ;;
1513       esac
1514     else
1515       continue
1516     fi
1517
1518     write_c_skeleton
1519     case $1 in
1520       *-softmmu)
1521         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1522           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1523           got_cross_cc=yes
1524           break
1525         fi
1526         ;;
1527       *)
1528         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1529           build_static=y
1530           got_cross_cc=yes
1531           break
1532         fi
1533         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1534           build_static=
1535           got_cross_cc=yes
1536           break
1537         fi
1538         ;;
1539     esac
1540   done
1541   if test $got_cross_cc != yes; then
1542     build_static=
1543     target_cc=
1544     target_ccas=
1545     target_ar=
1546     target_as=
1547     target_ld=
1548     target_nm=
1549     target_objcopy=
1550     target_ranlib=
1551     target_strip=
1552   fi
1553   test -n "$target_cc"
1554 }
1555
1556 write_target_makefile() {
1557   echo "EXTRA_CFLAGS=$target_cflags"
1558   if test -z "$target_cc" && test -z "$target_as"; then
1559     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1560     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1561     if test -n "$container_cross_cc"; then
1562       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1563       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1564     fi
1565     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1566     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1567     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1568     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1569     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1570     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1571     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1572   else
1573     if test -n "$target_cc"; then
1574       echo "CC=$target_cc"
1575       echo "CCAS=$target_ccas"
1576     fi
1577     if test -n "$target_ar"; then
1578       echo "AR=$target_ar"
1579     fi
1580     if test -n "$target_as"; then
1581       echo "AS=$target_as"
1582     fi
1583     if test -n "$target_ld"; then
1584       echo "LD=$target_ld"
1585     fi
1586     if test -n "$target_nm"; then
1587       echo "NM=$target_nm"
1588     fi
1589     if test -n "$target_objcopy"; then
1590       echo "OBJCOPY=$target_objcopy"
1591     fi
1592     if test -n "$target_ranlib"; then
1593       echo "RANLIB=$target_ranlib"
1594     fi
1595     if test -n "$target_strip"; then
1596       echo "STRIP=$target_strip"
1597     fi
1598   fi
1599 }
1600
1601 #######################################
1602 # cross-compiled firmware targets
1603
1604 # Set up build tree symlinks that point back into the source tree
1605 # (these can be both files and directories).
1606 # Caution: avoid adding files or directories here using wildcards. This
1607 # will result in problems later if a new file matching the wildcard is
1608 # added to the source tree -- nothing will cause configure to be rerun
1609 # so the build tree will be missing the link back to the new file, and
1610 # tests might fail. Prefer to keep the relevant files in their own
1611 # directory and symlink the directory instead.
1612 LINKS="Makefile"
1613 LINKS="$LINKS docs/config"
1614 LINKS="$LINKS pc-bios/optionrom/Makefile"
1615 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1616 LINKS="$LINKS pc-bios/vof/Makefile"
1617 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1618 LINKS="$LINKS tests/avocado tests/data"
1619 LINKS="$LINKS tests/qemu-iotests/check"
1620 LINKS="$LINKS python"
1621 LINKS="$LINKS contrib/plugins/Makefile "
1622 for f in $LINKS ; do
1623     if [ -e "$source_path/$f" ]; then
1624         symlink "$source_path/$f" "$f"
1625     fi
1626 done
1627
1628 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1629
1630 # Mac OS X ships with a broken assembler
1631 if have_target i386-softmmu x86_64-softmmu && \
1632         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1633         test "$targetos" != "haiku" && \
1634         probe_target_compiler i386-softmmu; then
1635     subdirs="$subdirs pc-bios/optionrom"
1636     config_mak=pc-bios/optionrom/config.mak
1637     echo "# Automatically generated by configure - do not modify" > $config_mak
1638     echo "TOPSRC_DIR=$source_path" >> $config_mak
1639     write_target_makefile >> $config_mak
1640 fi
1641
1642 if have_target ppc-softmmu ppc64-softmmu && \
1643         probe_target_compiler ppc-softmmu; then
1644     subdirs="$subdirs pc-bios/vof"
1645     config_mak=pc-bios/vof/config.mak
1646     echo "# Automatically generated by configure - do not modify" > $config_mak
1647     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1648     write_target_makefile >> $config_mak
1649 fi
1650
1651 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1652 # (which is the lowest architecture level that Clang supports)
1653 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1654     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1655   write_c_skeleton
1656   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1657   has_z900=$?
1658   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1659     if [ $has_z900 != 0 ]; then
1660       echo "WARNING: Your compiler does not support the z900!"
1661       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1662     fi
1663     subdirs="$subdirs pc-bios/s390-ccw"
1664     config_mak=pc-bios/s390-ccw/config-host.mak
1665     echo "# Automatically generated by configure - do not modify" > $config_mak
1666     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1667     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1668     write_target_makefile >> $config_mak
1669   fi
1670 fi
1671
1672 #######################################
1673 # generate config-host.mak
1674
1675 config_host_mak="config-host.mak"
1676
1677 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1678 echo >> $config_host_mak
1679
1680 echo all: >> $config_host_mak
1681
1682 if test "$targetos" = "windows"; then
1683   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1684   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1685   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1686 fi
1687
1688 echo "SRC_PATH=$source_path" >> $config_host_mak
1689 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1690
1691 if test -n "$gdb_bin"; then
1692     gdb_version=$($gdb_bin --version | head -n 1)
1693     if version_ge ${gdb_version##* } 9.1; then
1694         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1695         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1696     else
1697         gdb_bin=""
1698     fi
1699 fi
1700
1701 if test "$container" != no; then
1702     echo "RUNC=$runc" >> $config_host_mak
1703 fi
1704 echo "SUBDIRS=$subdirs" >> $config_host_mak
1705 echo "PYTHON=$python" >> $config_host_mak
1706 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1707 echo "MESON=$meson" >> $config_host_mak
1708 echo "NINJA=$ninja" >> $config_host_mak
1709 echo "EXESUF=$EXESUF" >> $config_host_mak
1710
1711 # use included Linux headers for KVM architectures
1712 if test "$targetos" = "linux" && test -n "$linux_arch"; then
1713   symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1714 fi
1715
1716 for target in $target_list; do
1717     target_dir="$target"
1718     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1719     case $target in
1720         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1721         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1722     esac
1723 done
1724
1725 if test "$default_targets" = "yes"; then
1726   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1727 fi
1728
1729 if test "$ccache_cpp2" = "yes"; then
1730   echo "export CCACHE_CPP2=y" >> $config_host_mak
1731 fi
1732
1733 # contrib/plugins configuration
1734 echo "# Automatically generated by configure - do not modify" > contrib/plugins/$config_host_mak
1735 echo "SRC_PATH=$source_path/contrib/plugins" >> contrib/plugins/$config_host_mak
1736 echo "PKG_CONFIG=${pkg_config}" >> contrib/plugins/$config_host_mak
1737 echo "CC=$cc $CPU_CFLAGS" >> contrib/plugins/$config_host_mak
1738 echo "CFLAGS=${CFLAGS-$default_cflags} $EXTRA_CFLAGS" >> contrib/plugins/$config_host_mak
1739 if test "$targetos" = darwin; then
1740   echo "CONFIG_DARWIN=y" >> contrib/plugins/$config_host_mak
1741 fi
1742
1743 # tests/tcg configuration
1744 (config_host_mak=tests/tcg/config-host.mak
1745 mkdir -p tests/tcg
1746 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1747 echo "SRC_PATH=$source_path" >> $config_host_mak
1748
1749 # versioned checked in the main config_host.mak above
1750 if test -n "$gdb_bin"; then
1751     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1752 fi
1753 if test "$plugins" = "yes" ; then
1754     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1755 fi
1756
1757 tcg_tests_targets=
1758 for target in $target_list; do
1759   arch=${target%%-*}
1760
1761   case $target in
1762     xtensa*-linux-user)
1763       # the toolchain is not complete with headers, only build system tests
1764       continue
1765       ;;
1766     *-softmmu)
1767       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1768       qemu="qemu-system-$arch"
1769       ;;
1770     *-linux-user|*-bsd-user)
1771       qemu="qemu-$arch"
1772       ;;
1773   esac
1774
1775   if probe_target_compiler $target || test -n "$container_image"; then
1776       test -n "$container_image" && build_static=y
1777       mkdir -p "tests/tcg/$target"
1778       config_target_mak=tests/tcg/$target/config-target.mak
1779       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1780       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1781       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1782       echo "TARGET=$target" >> "$config_target_mak"
1783       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1784       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1785       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1786
1787       # will GDB work with these binaries?
1788       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1789           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1790       fi
1791
1792       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1793       tcg_tests_targets="$tcg_tests_targets $target"
1794   fi
1795 done
1796
1797 if test "$tcg" = "enabled"; then
1798     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1799 fi
1800 )
1801
1802 if test "$skip_meson" = no; then
1803   cross="config-meson.cross.new"
1804   meson_quote() {
1805     test $# = 0 && return
1806     echo "'$(echo $* | sed "s/ /','/g")'"
1807   }
1808
1809   echo "# Automatically generated by configure - do not modify" > $cross
1810   echo "[properties]" >> $cross
1811
1812   # unroll any custom device configs
1813   for a in $device_archs; do
1814       eval "c=\$devices_${a}"
1815       echo "${a}-softmmu = '$c'" >> $cross
1816   done
1817
1818   echo "[built-in options]" >> $cross
1819   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1820   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1821   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1822   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1823   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1824   echo "[binaries]" >> $cross
1825   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1826   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1827   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1828   echo "ar = [$(meson_quote $ar)]" >> $cross
1829   echo "nm = [$(meson_quote $nm)]" >> $cross
1830   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1831   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1832   if has $sdl2_config; then
1833     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1834   fi
1835   echo "strip = [$(meson_quote $strip)]" >> $cross
1836   echo "widl = [$(meson_quote $widl)]" >> $cross
1837   echo "windres = [$(meson_quote $windres)]" >> $cross
1838   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1839   if test "$cross_compile" = "yes"; then
1840     echo "[host_machine]" >> $cross
1841     echo "system = '$targetos'" >> $cross
1842     case "$cpu" in
1843         i386)
1844             echo "cpu_family = 'x86'" >> $cross
1845             ;;
1846         *)
1847             echo "cpu_family = '$cpu'" >> $cross
1848             ;;
1849     esac
1850     echo "cpu = '$cpu'" >> $cross
1851     if test "$bigendian" = "yes" ; then
1852         echo "endian = 'big'" >> $cross
1853     else
1854         echo "endian = 'little'" >> $cross
1855     fi
1856     cross_arg="--cross-file config-meson.cross"
1857
1858     native="config-meson.native.new"
1859     echo "# Automatically generated by configure - do not modify" > $native
1860     echo "[binaries]" >> $native
1861     echo "c = [$(meson_quote $host_cc)]" >> $native
1862     mv $native config-meson.native
1863     cross_arg="$cross_arg --native-file config-meson.native"
1864   else
1865     cross_arg="--native-file config-meson.cross"
1866   fi
1867   mv $cross config-meson.cross
1868
1869   rm -rf meson-private meson-info meson-logs
1870
1871   # Built-in options
1872   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1873   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1874   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1875   test "$static" = yes && meson_option_add -Dprefer_static=true
1876   test "$pie" = no && meson_option_add -Db_pie=false
1877   test "$werror" = yes && meson_option_add -Dwerror=true
1878
1879   # QEMU options
1880   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1881   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1882   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1883   test "$plugins" = yes && meson_option_add "-Dplugins=true"
1884   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1885   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1886   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1887   run_meson() {
1888     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1889   }
1890   eval run_meson $meson_options
1891   if test "$?" -ne 0 ; then
1892       error_exit "meson setup failed"
1893   fi
1894   echo "$meson" > build.ninja.stamp
1895 else
1896   if test -f meson-private/cmd_line.txt; then
1897     # Adjust old command line options that were removed
1898     # sed -i is not portable
1899     perl -i -ne '
1900       /^sphinx_build/ && next;
1901       print;' meson-private/cmd_line.txt
1902   fi
1903 fi
1904
1905 # Save the configure command line for later reuse.
1906 cat <<EOD >config.status
1907 #!/bin/sh
1908 # Generated by configure.
1909 # Run this file to recreate the current configuration.
1910 # Compiler output produced by configure, useful for debugging
1911 # configure, is in config.log if it exists.
1912 EOD
1913
1914 preserve_env() {
1915     envname=$1
1916
1917     eval envval=\$$envname
1918
1919     if test -n "$envval"
1920     then
1921         echo "$envname='$envval'" >> config.status
1922         echo "export $envname" >> config.status
1923     else
1924         echo "unset $envname" >> config.status
1925     fi
1926 }
1927
1928 # Preserve various env variables that influence what
1929 # features/build target configure will detect
1930 preserve_env AR
1931 preserve_env AS
1932 preserve_env CC
1933 preserve_env CFLAGS
1934 preserve_env CXX
1935 preserve_env CXXFLAGS
1936 preserve_env LD
1937 preserve_env LDFLAGS
1938 preserve_env LD_LIBRARY_PATH
1939 preserve_env NM
1940 preserve_env OBJCFLAGS
1941 preserve_env OBJCOPY
1942 preserve_env PATH
1943 preserve_env PKG_CONFIG
1944 preserve_env PKG_CONFIG_LIBDIR
1945 preserve_env PKG_CONFIG_PATH
1946 preserve_env PYTHON
1947 preserve_env QEMU_GA_MANUFACTURER
1948 preserve_env QEMU_GA_DISTRO
1949 preserve_env QEMU_GA_VERSION
1950 preserve_env SDL2_CONFIG
1951 preserve_env SMBD
1952 preserve_env STRIP
1953 preserve_env WIDL
1954 preserve_env WINDRES
1955 preserve_env WINDMC
1956
1957 printf "exec" >>config.status
1958 for i in "$0" "$@"; do
1959   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1960 done
1961 echo ' "$@"' >>config.status
1962 chmod +x config.status
1963
1964 rm -r "$TMPDIR1"