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   if check_define _LP64 ; then
 455     cpu="riscv64"
 456   else
 457     cpu="riscv32"
 458   fi
 459 elif check_define __arm__ ; then
 460   cpu="arm"
 461 elif check_define __aarch64__ ; then
 462   cpu="aarch64"
 463 elif check_define __loongarch64 ; then
 464   cpu="loongarch64"
 465 else
 466   # Using uname is really broken, but it is just a fallback for architectures
 467   # that are going to use TCI anyway
 468   cpu=$(uname -m)
 469   echo "WARNING: unrecognized host CPU, proceeding with 'uname -m' output '$cpu'"
 470 fi
 471
 472 # Normalise host CPU name and set multilib cflags.  The canonicalization
 473 # isn't really necessary, because the architectures that we check for
 474 # should not hit the 'uname -m' case, but better safe than sorry.
 475 # Note that this case should only have supported host CPUs, not guests.
 476 case "$cpu" in
 477   armv*b|armv*l|arm)
 478     cpu="arm" ;;
 479
 480   i386|i486|i586|i686)
 481     cpu="i386"
 482     CPU_CFLAGS="-m32" ;;
 483   x32)
 484     cpu="x86_64"
 485     CPU_CFLAGS="-mx32" ;;
 486   x86_64|amd64)
 487     cpu="x86_64"
 488     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 489     # If we truly care, we should simply detect this case at
 490     # runtime and generate the fallback to serial emulation.
 491     CPU_CFLAGS="-m64 -mcx16" ;;
 492
 493   mips*)
 494     cpu="mips" ;;
 495
 496   ppc)
 497     CPU_CFLAGS="-m32" ;;
 498   ppc64)
 499     CPU_CFLAGS="-m64 -mbig-endian" ;;
 500   ppc64le)
 501     cpu="ppc64"
 502     CPU_CFLAGS="-m64 -mlittle-endian" ;;
 503
 504   s390)
 505     CPU_CFLAGS="-m31" ;;
 506   s390x)
 507     CPU_CFLAGS="-m64" ;;
 508
 509   sparc|sun4[cdmuv])
 510     cpu="sparc"
 511     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 512   sparc64)
 513     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 514 esac
 515
 516 check_py_version() {
 517     # We require python >= 3.7.
 518     # NB: a True python conditional creates a non-zero return code (Failure)
 519     "$1" -c 'import sys; sys.exit(sys.version_info < (3,7))'
 520 }
 521
 522 first_python=
 523 if test -z "${PYTHON}"; then
 524     # A bare 'python' is traditionally python 2.x, but some distros
 525     # have it as python 3.x, so check in both places.
 526     for binary in python3 python python3.11 python3.10 python3.9 python3.8 python3.7; do
 527         if has "$binary"; then
 528             python=$(command -v "$binary")
 529             if check_py_version "$python"; then
 530                 # This one is good.
 531                 first_python=
 532                 break
 533             else
 534                 first_python=$python
 535             fi
 536         fi
 537     done
 538 else
 539     # Same as above, but only check the environment variable.
 540     has "${PYTHON}" || error_exit "The PYTHON environment variable does not point to an executable"
 541     python=$(command -v "$PYTHON")
 542     if check_py_version "$python"; then
 543         # This one is good.
 544         first_python=
 545     else
 546         first_python=$first_python
 547     fi
 548 fi
 549
 550 # Check for ancillary tools used in testing
 551 genisoimage=
 552 for binary in genisoimage mkisofs
 553 do
 554     if has $binary
 555     then
 556         genisoimage=$(command -v "$binary")
 557         break
 558     fi
 559 done
 560
 561 if test "$mingw32" = "yes" ; then
 562   EXESUF=".exe"
 563   prefix="/qemu"
 564   bindir=""
 565   qemu_suffix=""
 566 fi
 567
 568 meson_option_build_array() {
 569   printf '['
 570   (if test "$targetos" = windows; then
 571     IFS=\;
 572   else
 573     IFS=:
 574   fi
 575   for e in $1; do
 576     printf '"""'
 577     # backslash escape any '\' and '"' characters
 578     printf "%s" "$e" | sed -e 's/\([\"]\)/\\\1/g'
 579     printf '""",'
 580   done)
 581   printf ']\n'
 582 }
 583
 584 . "$source_path/scripts/meson-buildoptions.sh"
 585
 586 meson_options=
 587 meson_option_add() {
 588   meson_options="$meson_options $(quote_sh "$1")"
 589 }
 590 meson_option_parse() {
 591   meson_options="$meson_options $(_meson_option_parse "$@")"
 592   if test $? -eq 1; then
 593     echo "ERROR: unknown option $1"
 594     echo "Try '$0 --help' for more information"
 595     exit 1
 596   fi
 597 }
 598
 599 for opt do
 600   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 601   case "$opt" in
 602   --help|-h) show_help=yes
 603   ;;
 604   --version|-V) exec cat "$source_path/VERSION"
 605   ;;
 606   --prefix=*) prefix="$optarg"
 607   ;;
 608   --cross-prefix=*)
 609   ;;
 610   --cc=*)
 611   ;;
 612   --host-cc=*) host_cc="$optarg"
 613   ;;
 614   --cxx=*)
 615   ;;
 616   --objcc=*)
 617   ;;
 618   --make=*)
 619   ;;
 620   --install=*)
 621   ;;
 622   --python=*) python="$optarg"
 623   ;;
 624   --skip-meson) skip_meson=yes
 625   ;;
 626   --ninja=*) ninja="$optarg"
 627   ;;
 628   --smbd=*) smbd="$optarg"
 629   ;;
 630   --extra-cflags=*)
 631   ;;
 632   --extra-cxxflags=*)
 633   ;;
 634   --extra-objcflags=*)
 635   ;;
 636   --extra-ldflags=*)
 637   ;;
 638   --cross-cc-*)
 639   ;;
 640   --cross-prefix-*)
 641   ;;
 642   --enable-docs) docs=enabled
 643   ;;
 644   --disable-docs) docs=disabled
 645   ;;
 646   --cpu=*)
 647   ;;
 648   --target-list=*) target_list="$optarg"
 649                    if test "$target_list_exclude"; then
 650                        error_exit "Can't mix --target-list with --target-list-exclude"
 651                    fi
 652   ;;
 653   --target-list-exclude=*) target_list_exclude="$optarg"
 654                    if test "$target_list"; then
 655                        error_exit "Can't mix --target-list-exclude with --target-list"
 656                    fi
 657   ;;
 658   --with-default-devices) meson_option_add -Ddefault_devices=true
 659   ;;
 660   --without-default-devices) meson_option_add -Ddefault_devices=false
 661   ;;
 662   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 663   ;;
 664   --with-devices-*) device_arch=${opt#--with-devices-};
 665                     device_arch=${device_arch%%=*}
 666                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 667                     if test -f "$cf"; then
 668                         device_archs="$device_archs $device_arch"
 669                         eval "devices_${device_arch}=\$optarg"
 670                     else
 671                         error_exit "File $cf does not exist"
 672                     fi
 673   ;;
 674   --without-default-features) # processed above
 675   ;;
 676   --static) static="yes"
 677   ;;
 678   --bindir=*) bindir="$optarg"
 679   ;;
 680   --with-suffix=*) qemu_suffix="$optarg"
 681   ;;
 682   --host=*|--build=*|\
 683   --disable-dependency-tracking|\
 684   --sbindir=*|--sharedstatedir=*|\
 685   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 686   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 687     # These switches are silently ignored, for compatibility with
 688     # autoconf-generated configure scripts. This allows QEMU's
 689     # configure to be used by RPM and similar macros that set
 690     # lots of directory switches by default.
 691   ;;
 692   --enable-debug-tcg) debug_tcg="yes"
 693   ;;
 694   --disable-debug-tcg) debug_tcg="no"
 695   ;;
 696   --enable-debug)
 697       # Enable debugging options that aren't excessively noisy
 698       debug_tcg="yes"
 699       meson_option_parse --enable-debug-graph-lock ""
 700       meson_option_parse --enable-debug-mutex ""
 701       meson_option_add -Doptimization=0
 702   ;;
 703   --disable-tcg) tcg="disabled"
 704                  plugins="no"
 705   ;;
 706   --enable-tcg) tcg="enabled"
 707   ;;
 708   --disable-system) softmmu="no"
 709   ;;
 710   --enable-system) softmmu="yes"
 711   ;;
 712   --disable-user)
 713       linux_user="no" ;
 714       bsd_user="no" ;
 715   ;;
 716   --enable-user) ;;
 717   --disable-linux-user) linux_user="no"
 718   ;;
 719   --enable-linux-user) linux_user="yes"
 720   ;;
 721   --disable-bsd-user) bsd_user="no"
 722   ;;
 723   --enable-bsd-user) bsd_user="yes"
 724   ;;
 725   --enable-pie) pie="yes"
 726   ;;
 727   --disable-pie) pie="no"
 728   ;;
 729   --enable-werror) werror="yes"
 730   ;;
 731   --disable-werror) werror="no"
 732   ;;
 733   --enable-cfi)
 734       cfi="true";
 735       meson_option_add -Db_lto=true
 736   ;;
 737   --disable-cfi) cfi="false"
 738   ;;
 739   --disable-download) download="disabled"; git_submodules_action=validate;
 740   ;;
 741   --enable-download) download="enabled"; git_submodules_action=update;
 742   ;;
 743   --enable-plugins) if test "$mingw32" = "yes"; then
 744                         error_exit "TCG plugins not currently supported on Windows platforms"
 745                     else
 746                         plugins="yes"
 747                     fi
 748   ;;
 749   --disable-plugins) plugins="no"
 750   ;;
 751   --enable-containers) use_containers="yes"
 752   ;;
 753   --disable-containers) use_containers="no"
 754   ;;
 755   --gdb=*) gdb_bin="$optarg"
 756   ;;
 757   # everything else has the same name in configure and meson
 758   --*) meson_option_parse "$opt" "$optarg"
 759   ;;
 760   esac
 761 done
 762
 763 if ! test -e "$source_path/.git"
 764 then
 765     git_submodules_action="validate"
 766 fi
 767
 768 # test for any invalid configuration combinations
 769 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
 770     error_exit "Can't enable plugins on non-TCG builds"
 771 fi
 772
 773 if ! test -f "$source_path/subprojects/keycodemapdb/README" \
 774     && test "$download" = disabled
 775 then
 776     echo
 777     echo "ERROR: missing subprojects"
 778     echo
 779     if test -e "$source_path/.git"; then
 780         echo "--disable-download specified but subprojects were not"
 781         echo 'checked out.  Please invoke "meson subprojects download"'
 782         echo "before configuring QEMU, or remove --disable-download"
 783         echo "from the command line."
 784     else
 785         echo "This is not a GIT checkout but subproject content appears to"
 786         echo "be missing. Do not use 'git archive' or GitHub download links"
 787         echo "to acquire QEMU source archives. Non-GIT builds are only"
 788         echo "supported with source archives linked from:"
 789         echo
 790         echo "  https://www.qemu.org/download/#source"
 791         echo
 792         echo "Developers working with GIT can use scripts/archive-source.sh"
 793         echo "if they need to create valid source archives."
 794     fi
 795     echo
 796     exit 1
 797 fi
 798
 799 default_target_list=""
 800 mak_wilds=""
 801
 802 if [ "$linux_user" != no ]; then
 803     if [ "$targetos" = linux ] && [ -d "$source_path/linux-user/include/host/$cpu" ]; then
 804         linux_user=yes
 805     elif [ "$linux_user" = yes ]; then
 806         error_exit "linux-user not supported on this architecture"
 807     fi
 808 fi
 809 if [ "$bsd_user" != no ]; then
 810     if [ "$bsd_user" = "" ]; then
 811         test $targetos = freebsd && bsd_user=yes
 812     fi
 813     if [ "$bsd_user" = yes ] && ! [ -d "$source_path/bsd-user/$targetos" ]; then
 814         error_exit "bsd-user not supported on this host OS"
 815     fi
 816 fi
 817 if [ "$softmmu" = "yes" ]; then
 818     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
 819 fi
 820 if [ "$linux_user" = "yes" ]; then
 821     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
 822 fi
 823 if [ "$bsd_user" = "yes" ]; then
 824     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
 825 fi
 826
 827 for config in $mak_wilds; do
 828     target="$(basename "$config" .mak)"
 829     if echo "$target_list_exclude" | grep -vq "$target"; then
 830         default_target_list="${default_target_list} $target"
 831     fi
 832 done
 833
 834 if test x"$show_help" = x"yes" ; then
 835 cat << EOF
 836
 837 Usage: configure [options]
 838 Options: [defaults in brackets after descriptions]
 839
 840 Standard options:
 841   --help                   print this message
 842   --prefix=PREFIX          install in PREFIX [$prefix]
 843   --target-list=LIST       set target list (default: build all)
 844 $(echo Available targets: $default_target_list | \
 845   fold -s -w 53 | sed -e 's/^/                           /')
 846   --target-list-exclude=LIST exclude a set of targets from the default target-list
 847
 848 Advanced options (experts only):
 849   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
 850   --cc=CC                  use C compiler CC [$cc]
 851   --host-cc=CC             use C compiler CC [$host_cc] for code run at
 852                            build time
 853   --cxx=CXX                use C++ compiler CXX [$cxx]
 854   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
 855   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
 856   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
 857   --extra-objcflags=OBJCFLAGS append extra Objective C compiler flags OBJCFLAGS
 858   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
 859   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
 860   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
 861   --cross-prefix-ARCH=PREFIX cross compiler prefix when building ARCH guest test cases
 862   --python=PYTHON          use specified python [$python]
 863   --ninja=NINJA            use specified ninja [$ninja]
 864   --smbd=SMBD              use specified smbd [$smbd]
 865   --static                 enable static build [$static]
 866   --bindir=PATH            install binaries in PATH
 867   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
 868   --without-default-features default all --enable-* options to "disabled"
 869   --without-default-devices  do not include any device that is not needed to
 870                            start the emulator (only use if you are including
 871                            desired devices in configs/devices/)
 872   --with-devices-ARCH=NAME override default configs/devices
 873   --enable-debug           enable common debug build options
 874   --disable-werror         disable compilation abort on warning
 875   --cpu=CPU                Build for host CPU [$cpu]
 876   --enable-plugins
 877                            enable plugins via shared library loading
 878   --disable-containers     don't use containers for cross-building
 879   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
 880 EOF
 881   meson_options_help
 882 cat << EOF
 883   system          all system emulation targets
 884   user            supported user emulation targets
 885   linux-user      all linux usermode emulation targets
 886   bsd-user        all BSD usermode emulation targets
 887   pie             Position Independent Executables
 888   debug-tcg       TCG debugging (default is disabled)
 889
 890 NOTE: The object files are built at the place where configure is launched
 891 EOF
 892 exit 0
 893 fi
 894
 895 # Remove old dependency files to make sure that they get properly regenerated
 896 rm -f ./*/config-devices.mak.d
 897
 898 if test -z "$python"
 899 then
 900     # If first_python is set, there was a binary somewhere even though
 901     # it was not suitable.  Use it for the error message.
 902     if test -n "$first_python"; then
 903         error_exit "Cannot use '$first_python', Python >= 3.7 is required." \
 904             "Use --python=/path/to/python to specify a supported Python."
 905     else
 906         error_exit "Python not found. Use --python=/path/to/python"
 907     fi
 908 fi
 909
 910 if ! check_py_version "$python"; then
 911   error_exit "Cannot use '$python', Python >= 3.7 is required." \
 912              "Use --python=/path/to/python to specify a supported Python." \
 913              "Maybe try:" \
 914              "  openSUSE Leap 15.3+: zypper install python39" \
 915              "  CentOS 8: dnf install python38"
 916 fi
 917
 918 # Resolve PATH
 919 python="$(command -v "$python")"
 920
 921 # Create a Python virtual environment using our configured python.
 922 # The stdout of this script will be the location of a symlink that
 923 # points to the configured Python.
 924 # Entry point scripts for pip, meson, and sphinx are generated if those
 925 # packages are present.
 926
 927 # Defaults assumed for now:
 928 # - venv is cleared if it exists already;
 929 # - venv is allowed to use system packages;
 930 # - all setup can be performed offline;
 931 # - missing packages may be fetched from PyPI,
 932 #   unless --disable-download is passed.
 933 # - pip is not installed into the venv when possible,
 934 #   but ensurepip is called as a fallback when necessary.
 935
 936 echo "python determined to be '$python'"
 937 echo "python version: $($python --version)"
 938
 939 python="$($python -B "${source_path}/python/scripts/mkvenv.py" create pyvenv)"
 940 if test "$?" -ne 0 ; then
 941     error_exit "python venv creation failed"
 942 fi
 943
 944 # Suppress writing compiled files
 945 python="$python -B"
 946 mkvenv="$python ${source_path}/python/scripts/mkvenv.py"
 947
 948 mkvenv_flags=""
 949 if test "$download" = "enabled" ; then
 950     mkvenv_flags="--online"
 951 fi
 952
 953 if ! $mkvenv ensure \
 954      $mkvenv_flags \
 955      --dir "${source_path}/python/wheels" \
 956      --diagnose "meson" \
 957      "meson>=0.63.0" ;
 958 then
 959     exit 1
 960 fi
 961
 962 # At this point, we expect Meson to be installed and available.
 963 # We expect mkvenv or pip to have created pyvenv/bin/meson for us.
 964 # We ignore PATH completely here: we want to use the venv's Meson
 965 # *exclusively*.
 966
 967 meson="$(cd pyvenv/bin; pwd)/meson"
 968
 969 # Conditionally ensure Sphinx is installed.
 970
 971 mkvenv_flags=""
 972 if test "$download" = "enabled" -a "$docs" = "enabled" ; then
 973     mkvenv_flags="--online"
 974 fi
 975
 976 if test "$docs" != "disabled" ; then
 977     if ! $mkvenv ensure \
 978          $mkvenv_flags \
 979          --diagnose "sphinx-build" \
 980          "sphinx>=1.6.0" "sphinx-rtd-theme>=0.5.0";
 981     then
 982         if test "$docs" = "enabled" ; then
 983             exit 1
 984         fi
 985         echo "Sphinx not found/usable, disabling docs."
 986         docs=disabled
 987     else
 988         docs=enabled
 989     fi
 990 fi
 991
 992 # Probe for ninja
 993
 994 if test -z "$ninja"; then
 995     for c in ninja ninja-build samu; do
 996         if has $c; then
 997             ninja=$(command -v "$c")
 998             break
 999         fi
1000     done
1001     if test -z "$ninja"; then
1002       error_exit "Cannot find Ninja"
1003     fi
1004 fi
1005
1006 # Consult white-list to determine whether to enable werror
1007 # by default.  Only enable by default for git builds
1008 if test -z "$werror" ; then
1009     if test -e "$source_path/.git" && \
1010         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1011         werror="yes"
1012     else
1013         werror="no"
1014     fi
1015 fi
1016
1017 if test "$targetos" = "bogus"; then
1018     # Now that we know that we're not printing the help and that
1019     # the compiler works (so the results of the check_defines we used
1020     # to identify the OS are reliable), if we didn't recognize the
1021     # host OS we should stop now.
1022     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1023 fi
1024
1025 if test "$static" = "yes" ; then
1026   if test "$plugins" = "yes"; then
1027     error_exit "static and plugins are mutually incompatible"
1028   else
1029     plugins="no"
1030   fi
1031 fi
1032 test "$plugins" = "" && plugins=yes
1033
1034 cat > $TMPC << EOF
1035
1036 #ifdef __linux__
1037 #  define THREAD __thread
1038 #else
1039 #  define THREAD
1040 #endif
1041 static THREAD int tls_var;
1042 int main(void) { return tls_var; }
1043 EOF
1044
1045 if test "$static" = "yes"; then
1046   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1047     pie="yes"
1048   elif test "$pie" = "yes"; then
1049     error_exit "-static-pie not available due to missing toolchain support"
1050   else
1051     pie="no"
1052   fi
1053 elif test "$pie" != "no"; then
1054   if compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1055     pie="yes"
1056   elif test "$pie" = "yes"; then
1057     error_exit "PIE not available due to missing toolchain support"
1058   else
1059     echo "Disabling PIE due to missing toolchain support"
1060     pie="no"
1061   fi
1062 fi
1063
1064 ##########################################
1065
1066 if test -z "${target_list+xxx}" ; then
1067     default_targets=yes
1068     for target in $default_target_list; do
1069         target_list="$target_list $target"
1070     done
1071     target_list="${target_list# }"
1072 else
1073     default_targets=no
1074     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1075     for target in $target_list; do
1076         # Check that we recognised the target name; this allows a more
1077         # friendly error message than if we let it fall through.
1078         case " $default_target_list " in
1079             *" $target "*)
1080                 ;;
1081             *)
1082                 error_exit "Unknown target name '$target'"
1083                 ;;
1084         esac
1085     done
1086 fi
1087
1088 # see if system emulation was really requested
1089 case " $target_list " in
1090   *"-softmmu "*) softmmu=yes
1091   ;;
1092   *) softmmu=no
1093   ;;
1094 esac
1095
1096 if test "$tcg" = "auto"; then
1097   if test -z "$target_list"; then
1098     tcg="disabled"
1099   else
1100     tcg="enabled"
1101   fi
1102 fi
1103
1104 ##########################################
1105 # big/little endian test
1106 cat > $TMPC << EOF
1107 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1108 # error LITTLE
1109 #endif
1110 int main(void) { return 0; }
1111 EOF
1112
1113 if ! compile_prog ; then
1114   bigendian="no"
1115 else
1116   cat > $TMPC << EOF
1117 #if defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1118 # error BIG
1119 #endif
1120 int main(void) { return 0; }
1121 EOF
1122
1123   if ! compile_prog ; then
1124     bigendian="yes"
1125   else
1126     echo big/little test failed
1127     exit 1
1128   fi
1129 fi
1130
1131 ########################################
1132 # check if ccache is interfering with
1133 # semantic analysis of macros
1134
1135 unset CCACHE_CPP2
1136 ccache_cpp2=no
1137 cat > $TMPC << EOF
1138 static const int Z = 1;
1139 #define fn() ({ Z; })
1140 #define TAUT(X) ((X) == Z)
1141 #define PAREN(X, Y) (X == Y)
1142 #define ID(X) (X)
1143 int main(void)
1144 {
1145     int x = 0, y = 0;
1146     x = ID(x);
1147     x = fn();
1148     fn();
1149     if (PAREN(x, y)) return 0;
1150     if (TAUT(Z)) return 0;
1151     return 0;
1152 }
1153 EOF
1154
1155 if ! compile_object "-Werror"; then
1156     ccache_cpp2=yes
1157 fi
1158
1159 ##########################################
1160 # functions to probe cross compilers
1161
1162 container="no"
1163 runc=""
1164 if test $use_containers = "yes" && (has "docker" || has "podman"); then
1165     case $($python "$source_path"/tests/docker/docker.py probe) in
1166         *docker) container=docker ;;
1167         podman) container=podman ;;
1168         no) container=no ;;
1169     esac
1170     if test "$container" != "no"; then
1171         docker_py="$python $source_path/tests/docker/docker.py --engine $container"
1172         runc=$($python "$source_path"/tests/docker/docker.py probe)
1173     fi
1174 fi
1175
1176 # cross compilers defaults, can be overridden with --cross-cc-ARCH
1177 : ${cross_prefix_aarch64="aarch64-linux-gnu-"}
1178 : ${cross_prefix_aarch64_be="$cross_prefix_aarch64"}
1179 : ${cross_prefix_alpha="alpha-linux-gnu-"}
1180 : ${cross_prefix_arm="arm-linux-gnueabihf-"}
1181 : ${cross_prefix_armeb="$cross_prefix_arm"}
1182 : ${cross_prefix_hexagon="hexagon-unknown-linux-musl-"}
1183 : ${cross_prefix_loongarch64="loongarch64-unknown-linux-gnu-"}
1184 : ${cross_prefix_hppa="hppa-linux-gnu-"}
1185 : ${cross_prefix_i386="i686-linux-gnu-"}
1186 : ${cross_prefix_m68k="m68k-linux-gnu-"}
1187 : ${cross_prefix_microblaze="microblaze-linux-musl-"}
1188 : ${cross_prefix_mips64el="mips64el-linux-gnuabi64-"}
1189 : ${cross_prefix_mips64="mips64-linux-gnuabi64-"}
1190 : ${cross_prefix_mipsel="mipsel-linux-gnu-"}
1191 : ${cross_prefix_mips="mips-linux-gnu-"}
1192 : ${cross_prefix_nios2="nios2-linux-gnu-"}
1193 : ${cross_prefix_ppc="powerpc-linux-gnu-"}
1194 : ${cross_prefix_ppc64="powerpc64-linux-gnu-"}
1195 : ${cross_prefix_ppc64le="$cross_prefix_ppc64"}
1196 : ${cross_prefix_riscv64="riscv64-linux-gnu-"}
1197 : ${cross_prefix_s390x="s390x-linux-gnu-"}
1198 : ${cross_prefix_sh4="sh4-linux-gnu-"}
1199 : ${cross_prefix_sparc64="sparc64-linux-gnu-"}
1200 : ${cross_prefix_sparc="$cross_prefix_sparc64"}
1201 : ${cross_prefix_x86_64="x86_64-linux-gnu-"}
1202
1203 : ${cross_cc_aarch64_be="$cross_cc_aarch64"}
1204 : ${cross_cc_cflags_aarch64_be="-mbig-endian"}
1205 : ${cross_cc_armeb="$cross_cc_arm"}
1206 : ${cross_cc_cflags_armeb="-mbig-endian"}
1207 : ${cross_cc_hexagon="hexagon-unknown-linux-musl-clang"}
1208 : ${cross_cc_cflags_hexagon="-mv73 -O2 -static"}
1209 : ${cross_cc_cflags_i386="-m32"}
1210 : ${cross_cc_cflags_ppc="-m32 -mbig-endian"}
1211 : ${cross_cc_cflags_ppc64="-m64 -mbig-endian"}
1212 : ${cross_cc_ppc64le="$cross_cc_ppc64"}
1213 : ${cross_cc_cflags_ppc64le="-m64 -mlittle-endian"}
1214 : ${cross_cc_cflags_sparc64="-m64 -mcpu=ultrasparc"}
1215 : ${cross_cc_sparc="$cross_cc_sparc64"}
1216 : ${cross_cc_cflags_sparc="-m32 -mcpu=supersparc"}
1217 : ${cross_cc_cflags_x86_64="-m64"}
1218
1219 compute_target_variable() {
1220   eval "$2="
1221   if eval test -n "\"\${cross_prefix_$1}\""; then
1222     if eval has "\"\${cross_prefix_$1}\$3\""; then
1223       eval "$2=\"\${cross_prefix_$1}\$3\""
1224     fi
1225   fi
1226 }
1227
1228 have_target() {
1229   for i; do
1230     case " $target_list " in
1231       *" $i "*) return 0;;
1232       *) ;;
1233     esac
1234   done
1235   return 1
1236 }
1237
1238 # probe_target_compiler TARGET
1239 #
1240 # Look for a compiler for the given target, either native or cross.
1241 # Set variables target_* if a compiler is found, and container_cross_*
1242 # if a Docker-based cross-compiler image is known for the target.
1243 # Set got_cross_cc to yes/no depending on whether a non-container-based
1244 # compiler was found.
1245 #
1246 # If TARGET is a user-mode emulation target, also set build_static to
1247 # "y" if static linking is possible.
1248 #
1249 probe_target_compiler() {
1250   # reset all output variables
1251   got_cross_cc=no
1252   container_image=
1253   container_hosts=
1254   container_cross_cc=
1255   container_cross_ar=
1256   container_cross_as=
1257   container_cross_ld=
1258   container_cross_nm=
1259   container_cross_objcopy=
1260   container_cross_ranlib=
1261   container_cross_strip=
1262
1263   target_arch=${1%%-*}
1264   case $target_arch in
1265     aarch64) container_hosts="x86_64 aarch64" ;;
1266     alpha) container_hosts=x86_64 ;;
1267     arm) container_hosts="x86_64 aarch64" ;;
1268     cris) container_hosts=x86_64 ;;
1269     hexagon) container_hosts=x86_64 ;;
1270     hppa) container_hosts=x86_64 ;;
1271     i386) container_hosts=x86_64 ;;
1272     loongarch64) container_hosts=x86_64 ;;
1273     m68k) container_hosts=x86_64 ;;
1274     microblaze) container_hosts=x86_64 ;;
1275     mips64el) container_hosts=x86_64 ;;
1276     mips64) container_hosts=x86_64 ;;
1277     mipsel) container_hosts=x86_64 ;;
1278     mips) container_hosts=x86_64 ;;
1279     nios2) container_hosts=x86_64 ;;
1280     ppc) container_hosts=x86_64 ;;
1281     ppc64|ppc64le) container_hosts=x86_64 ;;
1282     riscv64) container_hosts=x86_64 ;;
1283     s390x) container_hosts=x86_64 ;;
1284     sh4) container_hosts=x86_64 ;;
1285     sparc64) container_hosts=x86_64 ;;
1286     tricore) container_hosts=x86_64 ;;
1287     x86_64) container_hosts="aarch64 ppc64el x86_64" ;;
1288     xtensa*) container_hosts=x86_64 ;;
1289   esac
1290
1291   for host in $container_hosts; do
1292     test "$container" != no || continue
1293     test "$host" = "$cpu" || continue
1294     case $target_arch in
1295       aarch64)
1296         # We don't have any bigendian build tools so we only use this for AArch64
1297         container_image=debian-arm64-cross
1298         container_cross_prefix=aarch64-linux-gnu-
1299         container_cross_cc=${container_cross_prefix}gcc-10
1300         ;;
1301       alpha)
1302         container_image=debian-alpha-cross
1303         container_cross_prefix=alpha-linux-gnu-
1304         ;;
1305       arm)
1306         # We don't have any bigendian build tools so we only use this for ARM
1307         container_image=debian-armhf-cross
1308         container_cross_prefix=arm-linux-gnueabihf-
1309         ;;
1310       cris)
1311         container_image=fedora-cris-cross
1312         container_cross_prefix=cris-linux-gnu-
1313         ;;
1314       hexagon)
1315         container_image=debian-hexagon-cross
1316         container_cross_prefix=hexagon-unknown-linux-musl-
1317         container_cross_cc=${container_cross_prefix}clang
1318         ;;
1319       hppa)
1320         container_image=debian-hppa-cross
1321         container_cross_prefix=hppa-linux-gnu-
1322         ;;
1323       i386)
1324         container_image=fedora-i386-cross
1325         container_cross_prefix=
1326         ;;
1327       loongarch64)
1328         container_image=debian-loongarch-cross
1329         container_cross_prefix=loongarch64-unknown-linux-gnu-
1330         ;;
1331       m68k)
1332         container_image=debian-m68k-cross
1333         container_cross_prefix=m68k-linux-gnu-
1334         ;;
1335       microblaze)
1336         container_image=debian-microblaze-cross
1337         container_cross_prefix=microblaze-linux-musl-
1338         ;;
1339       mips64el)
1340         container_image=debian-mips64el-cross
1341         container_cross_prefix=mips64el-linux-gnuabi64-
1342         ;;
1343       mips64)
1344         container_image=debian-mips64-cross
1345         container_cross_prefix=mips64-linux-gnuabi64-
1346         ;;
1347       mipsel)
1348         container_image=debian-mipsel-cross
1349         container_cross_prefix=mipsel-linux-gnu-
1350         ;;
1351       mips)
1352         container_image=debian-mips-cross
1353         container_cross_prefix=mips-linux-gnu-
1354         ;;
1355       nios2)
1356         container_image=debian-nios2-cross
1357         container_cross_prefix=nios2-linux-gnu-
1358         ;;
1359       ppc)
1360         container_image=debian-powerpc-test-cross
1361         container_cross_prefix=powerpc-linux-gnu-
1362         container_cross_cc=${container_cross_prefix}gcc-10
1363         ;;
1364       ppc64|ppc64le)
1365         container_image=debian-powerpc-test-cross
1366         container_cross_prefix=powerpc${target_arch#ppc}-linux-gnu-
1367         container_cross_cc=${container_cross_prefix}gcc-10
1368         ;;
1369       riscv64)
1370         container_image=debian-riscv64-test-cross
1371         container_cross_prefix=riscv64-linux-gnu-
1372         ;;
1373       s390x)
1374         container_image=debian-s390x-cross
1375         container_cross_prefix=s390x-linux-gnu-
1376         ;;
1377       sh4)
1378         container_image=debian-sh4-cross
1379         container_cross_prefix=sh4-linux-gnu-
1380         ;;
1381       sparc64)
1382         container_image=debian-sparc64-cross
1383         container_cross_prefix=sparc64-linux-gnu-
1384         ;;
1385       tricore)
1386         container_image=debian-tricore-cross
1387         container_cross_prefix=tricore-
1388         container_cross_as=tricore-as
1389         container_cross_ld=tricore-ld
1390         container_cross_cc=tricore-gcc
1391         break
1392         ;;
1393       x86_64)
1394         container_image=debian-amd64-cross
1395         container_cross_prefix=x86_64-linux-gnu-
1396         ;;
1397       xtensa*)
1398         container_hosts=x86_64
1399         container_image=debian-xtensa-cross
1400
1401         # default to the dc232b cpu
1402         container_cross_prefix=/opt/2020.07/xtensa-dc232b-elf/bin/xtensa-dc232b-elf-
1403         ;;
1404     esac
1405     : ${container_cross_cc:=${container_cross_prefix}gcc}
1406     : ${container_cross_ar:=${container_cross_prefix}ar}
1407     : ${container_cross_as:=${container_cross_prefix}as}
1408     : ${container_cross_ld:=${container_cross_prefix}ld}
1409     : ${container_cross_nm:=${container_cross_prefix}nm}
1410     : ${container_cross_objcopy:=${container_cross_prefix}objcopy}
1411     : ${container_cross_ranlib:=${container_cross_prefix}ranlib}
1412     : ${container_cross_strip:=${container_cross_prefix}strip}
1413   done
1414
1415   try=cross
1416   case "$target_arch:$cpu" in
1417     aarch64_be:aarch64 | \
1418     armeb:arm | \
1419     i386:x86_64 | \
1420     mips*:mips64 | \
1421     ppc*:ppc64 | \
1422     sparc:sparc64 | \
1423     "$cpu:$cpu")
1424       try='native cross' ;;
1425   esac
1426   eval "target_cflags=\${cross_cc_cflags_$target_arch}"
1427   for thistry in $try; do
1428     case $thistry in
1429     native)
1430       target_cc=$cc
1431       target_ccas=$ccas
1432       target_ar=$ar
1433       target_as=$as
1434       target_ld=$ld
1435       target_nm=$nm
1436       target_objcopy=$objcopy
1437       target_ranlib=$ranlib
1438       target_strip=$strip
1439       ;;
1440     cross)
1441       target_cc=
1442       if eval test -n "\"\${cross_cc_$target_arch}\""; then
1443         if eval has "\"\${cross_cc_$target_arch}\""; then
1444           eval "target_cc=\"\${cross_cc_$target_arch}\""
1445         fi
1446       else
1447         compute_target_variable $target_arch target_cc gcc
1448       fi
1449       target_ccas=$target_cc
1450       compute_target_variable $target_arch target_ar ar
1451       compute_target_variable $target_arch target_as as
1452       compute_target_variable $target_arch target_ld ld
1453       compute_target_variable $target_arch target_nm nm
1454       compute_target_variable $target_arch target_objcopy objcopy
1455       compute_target_variable $target_arch target_ranlib ranlib
1456       compute_target_variable $target_arch target_strip strip
1457       ;;
1458     esac
1459
1460     if test -n "$target_cc"; then
1461       case $target_arch in
1462         i386|x86_64)
1463           if $target_cc --version | grep -qi "clang"; then
1464             continue
1465           fi
1466           ;;
1467       esac
1468     elif test -n "$target_as" && test -n "$target_ld"; then
1469       # Special handling for assembler only targets
1470       case $target in
1471         tricore-softmmu)
1472           build_static=
1473           got_cross_cc=yes
1474           break
1475           ;;
1476         *)
1477           continue
1478           ;;
1479       esac
1480     else
1481       continue
1482     fi
1483
1484     write_c_skeleton
1485     case $1 in
1486       *-softmmu)
1487         if do_compiler "$target_cc" $target_cflags -o $TMPO -c $TMPC &&
1488           do_compiler "$target_cc" $target_cflags -r -nostdlib -o "${TMPDIR1}/${TMPB}2.o" "$TMPO" -lgcc; then
1489           got_cross_cc=yes
1490           break
1491         fi
1492         ;;
1493       *)
1494         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC -static ; then
1495           build_static=y
1496           got_cross_cc=yes
1497           break
1498         fi
1499         if do_compiler "$target_cc" $target_cflags -o $TMPE $TMPC ; then
1500           build_static=
1501           got_cross_cc=yes
1502           break
1503         fi
1504         ;;
1505     esac
1506   done
1507   if test $got_cross_cc != yes; then
1508     build_static=
1509     target_cc=
1510     target_ccas=
1511     target_ar=
1512     target_as=
1513     target_ld=
1514     target_nm=
1515     target_objcopy=
1516     target_ranlib=
1517     target_strip=
1518   fi
1519   test -n "$target_cc"
1520 }
1521
1522 write_target_makefile() {
1523   echo "EXTRA_CFLAGS=$target_cflags"
1524   if test -z "$target_cc" && test -z "$target_as"; then
1525     test -z "$container_image" && error_exit "Internal error: could not find cross compiler for $1?"
1526     echo "$1: docker-image-$container_image" >> Makefile.prereqs
1527     if test -n "$container_cross_cc"; then
1528       echo "CC=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1529       echo "CCAS=$docker_py cc --cc $container_cross_cc -i qemu/$container_image -s $source_path --"
1530     fi
1531     echo "AR=$docker_py cc --cc $container_cross_ar -i qemu/$container_image -s $source_path --"
1532     echo "AS=$docker_py cc --cc $container_cross_as -i qemu/$container_image -s $source_path --"
1533     echo "LD=$docker_py cc --cc $container_cross_ld -i qemu/$container_image -s $source_path --"
1534     echo "NM=$docker_py cc --cc $container_cross_nm -i qemu/$container_image -s $source_path --"
1535     echo "OBJCOPY=$docker_py cc --cc $container_cross_objcopy -i qemu/$container_image -s $source_path --"
1536     echo "RANLIB=$docker_py cc --cc $container_cross_ranlib -i qemu/$container_image -s $source_path --"
1537     echo "STRIP=$docker_py cc --cc $container_cross_strip -i qemu/$container_image -s $source_path --"
1538   else
1539     if test -n "$target_cc"; then
1540       echo "CC=$target_cc"
1541       echo "CCAS=$target_ccas"
1542     fi
1543     if test -n "$target_ar"; then
1544       echo "AR=$target_ar"
1545     fi
1546     if test -n "$target_as"; then
1547       echo "AS=$target_as"
1548     fi
1549     if test -n "$target_ld"; then
1550       echo "LD=$target_ld"
1551     fi
1552     if test -n "$target_nm"; then
1553       echo "NM=$target_nm"
1554     fi
1555     if test -n "$target_objcopy"; then
1556       echo "OBJCOPY=$target_objcopy"
1557     fi
1558     if test -n "$target_ranlib"; then
1559       echo "RANLIB=$target_ranlib"
1560     fi
1561     if test -n "$target_strip"; then
1562       echo "STRIP=$target_strip"
1563     fi
1564   fi
1565 }
1566
1567 #######################################
1568 # cross-compiled firmware targets
1569
1570 # Set up build tree symlinks that point back into the source tree
1571 # (these can be both files and directories).
1572 # Caution: avoid adding files or directories here using wildcards. This
1573 # will result in problems later if a new file matching the wildcard is
1574 # added to the source tree -- nothing will cause configure to be rerun
1575 # so the build tree will be missing the link back to the new file, and
1576 # tests might fail. Prefer to keep the relevant files in their own
1577 # directory and symlink the directory instead.
1578 LINKS="Makefile"
1579 LINKS="$LINKS docs/config"
1580 LINKS="$LINKS pc-bios/optionrom/Makefile"
1581 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
1582 LINKS="$LINKS pc-bios/vof/Makefile"
1583 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
1584 LINKS="$LINKS tests/avocado tests/data"
1585 LINKS="$LINKS tests/qemu-iotests/check"
1586 LINKS="$LINKS python"
1587 LINKS="$LINKS contrib/plugins/Makefile "
1588 for f in $LINKS ; do
1589     if [ -e "$source_path/$f" ]; then
1590         symlink "$source_path/$f" "$f"
1591     fi
1592 done
1593
1594 echo "# Automatically generated by configure - do not modify" > Makefile.prereqs
1595
1596 # Mac OS X ships with a broken assembler
1597 roms=
1598 if have_target i386-softmmu x86_64-softmmu && \
1599         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
1600         test "$targetos" != "haiku" && \
1601         probe_target_compiler i386-softmmu; then
1602     roms="pc-bios/optionrom"
1603     config_mak=pc-bios/optionrom/config.mak
1604     echo "# Automatically generated by configure - do not modify" > $config_mak
1605     echo "TOPSRC_DIR=$source_path" >> $config_mak
1606     write_target_makefile >> $config_mak
1607 fi
1608
1609 if have_target ppc-softmmu ppc64-softmmu && \
1610         probe_target_compiler ppc-softmmu; then
1611     roms="$roms pc-bios/vof"
1612     config_mak=pc-bios/vof/config.mak
1613     echo "# Automatically generated by configure - do not modify" > $config_mak
1614     echo "SRC_DIR=$source_path/pc-bios/vof" >> $config_mak
1615     write_target_makefile >> $config_mak
1616 fi
1617
1618 # Only build s390-ccw bios if the compiler has -march=z900 or -march=z10
1619 # (which is the lowest architecture level that Clang supports)
1620 if have_target s390x-softmmu && probe_target_compiler s390x-softmmu && \
1621     GIT=git "$source_path/scripts/git-submodule.sh" "$git_submodules_action" roms/SLOF >> config.log 2>&1; then
1622   write_c_skeleton
1623   do_compiler "$target_cc" $target_cc_cflags -march=z900 -o $TMPO -c $TMPC
1624   has_z900=$?
1625   if [ $has_z900 = 0 ] || do_compiler "$target_cc" $target_cc_cflags -march=z10 -msoft-float -Werror -o $TMPO -c $TMPC; then
1626     if [ $has_z900 != 0 ]; then
1627       echo "WARNING: Your compiler does not support the z900!"
1628       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
1629     fi
1630     roms="$roms pc-bios/s390-ccw"
1631     config_mak=pc-bios/s390-ccw/config-host.mak
1632     echo "# Automatically generated by configure - do not modify" > $config_mak
1633     echo "SRC_PATH=$source_path/pc-bios/s390-ccw" >> $config_mak
1634     echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_mak
1635     write_target_makefile >> $config_mak
1636   fi
1637 fi
1638
1639 #######################################
1640 # generate config-host.mak
1641
1642 config_host_mak="config-host.mak"
1643
1644 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1645 echo >> $config_host_mak
1646
1647 echo all: >> $config_host_mak
1648
1649 if test "$debug_tcg" = "yes" ; then
1650   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
1651 fi
1652 if test "$mingw32" = "yes" ; then
1653   echo "CONFIG_WIN32=y" >> $config_host_mak
1654   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER-QEMU}" >> $config_host_mak
1655   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO-Linux}" >> $config_host_mak
1656   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION-$(cat "$source_path"/VERSION)}" >> $config_host_mak
1657 else
1658   echo "CONFIG_POSIX=y" >> $config_host_mak
1659 fi
1660
1661 if test "$linux" = "yes" ; then
1662   echo "CONFIG_LINUX=y" >> $config_host_mak
1663 fi
1664
1665 if test "$darwin" = "yes" ; then
1666   echo "CONFIG_DARWIN=y" >> $config_host_mak
1667 fi
1668
1669 if test "$solaris" = "yes" ; then
1670   echo "CONFIG_SOLARIS=y" >> $config_host_mak
1671 fi
1672 echo "SRC_PATH=$source_path" >> $config_host_mak
1673 echo "TARGET_DIRS=$target_list" >> $config_host_mak
1674
1675 # XXX: suppress that
1676 if [ "$bsd" = "yes" ] ; then
1677   echo "CONFIG_BSD=y" >> $config_host_mak
1678 fi
1679
1680 if test "$plugins" = "yes" ; then
1681     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1682 fi
1683
1684 if test -n "$gdb_bin"; then
1685     gdb_version=$($gdb_bin --version | head -n 1)
1686     if version_ge ${gdb_version##* } 9.1; then
1687         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1688         gdb_arches=$($python "$source_path/scripts/probe-gdb-support.py" $gdb_bin)
1689     else
1690         gdb_bin=""
1691     fi
1692 fi
1693
1694 if test "$container" != no; then
1695     echo "ENGINE=$container" >> $config_host_mak
1696     echo "RUNC=$runc" >> $config_host_mak
1697 fi
1698 echo "ROMS=$roms" >> $config_host_mak
1699 echo "PYTHON=$python" >> $config_host_mak
1700 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
1701 echo "MESON=$meson" >> $config_host_mak
1702 echo "NINJA=$ninja" >> $config_host_mak
1703 echo "PKG_CONFIG=${pkg_config}" >> $config_host_mak
1704 echo "CC=$cc" >> $config_host_mak
1705 echo "EXESUF=$EXESUF" >> $config_host_mak
1706
1707 # use included Linux headers
1708 if test "$linux" = "yes" ; then
1709   mkdir -p linux-headers
1710   case "$cpu" in
1711   i386|x86_64)
1712     linux_arch=x86
1713     ;;
1714   ppc|ppc64)
1715     linux_arch=powerpc
1716     ;;
1717   s390x)
1718     linux_arch=s390
1719     ;;
1720   aarch64)
1721     linux_arch=arm64
1722     ;;
1723   loongarch*)
1724     linux_arch=loongarch
1725     ;;
1726   mips64)
1727     linux_arch=mips
1728     ;;
1729   riscv32|riscv64)
1730     linux_arch=riscv
1731     ;;
1732   *)
1733     # For most CPUs the kernel architecture name and QEMU CPU name match.
1734     linux_arch="$cpu"
1735     ;;
1736   esac
1737     # For non-KVM architectures we will not have asm headers
1738     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
1739       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
1740     fi
1741 fi
1742
1743 for target in $target_list; do
1744     target_dir="$target"
1745     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
1746     mkdir -p "$target_dir"
1747     case $target in
1748         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
1749         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
1750     esac
1751 done
1752
1753 if test "$default_targets" = "yes"; then
1754   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
1755 fi
1756
1757 if test "$ccache_cpp2" = "yes"; then
1758   echo "export CCACHE_CPP2=y" >> $config_host_mak
1759 fi
1760
1761 # tests/tcg configuration
1762 (config_host_mak=tests/tcg/config-host.mak
1763 mkdir -p tests/tcg
1764 echo "# Automatically generated by configure - do not modify" > $config_host_mak
1765 echo "SRC_PATH=$source_path" >> $config_host_mak
1766 echo "HOST_CC=$host_cc" >> $config_host_mak
1767
1768 # versioned checked in the main config_host.mak above
1769 if test -n "$gdb_bin"; then
1770     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
1771 fi
1772 if test "$plugins" = "yes" ; then
1773     echo "CONFIG_PLUGIN=y" >> $config_host_mak
1774 fi
1775
1776 tcg_tests_targets=
1777 for target in $target_list; do
1778   arch=${target%%-*}
1779
1780   case $target in
1781     xtensa*-linux-user)
1782       # the toolchain is not complete with headers, only build softmmu tests
1783       continue
1784       ;;
1785     *-softmmu)
1786       test -f "$source_path/tests/tcg/$arch/Makefile.softmmu-target" || continue
1787       qemu="qemu-system-$arch"
1788       ;;
1789     *-linux-user|*-bsd-user)
1790       qemu="qemu-$arch"
1791       ;;
1792   esac
1793
1794   if probe_target_compiler $target || test -n "$container_image"; then
1795       test -n "$container_image" && build_static=y
1796       mkdir -p "tests/tcg/$target"
1797       config_target_mak=tests/tcg/$target/config-target.mak
1798       ln -sf "$source_path/tests/tcg/Makefile.target" "tests/tcg/$target/Makefile"
1799       echo "# Automatically generated by configure - do not modify" > "$config_target_mak"
1800       echo "TARGET_NAME=$arch" >> "$config_target_mak"
1801       echo "TARGET=$target" >> "$config_target_mak"
1802       write_target_makefile "build-tcg-tests-$target" >> "$config_target_mak"
1803       echo "BUILD_STATIC=$build_static" >> "$config_target_mak"
1804       echo "QEMU=$PWD/$qemu" >> "$config_target_mak"
1805
1806       # will GDB work with these binaries?
1807       if test "${gdb_arches#*$arch}" != "$gdb_arches"; then
1808           echo "HOST_GDB_SUPPORTS_ARCH=y" >> "$config_target_mak"
1809       fi
1810
1811       echo "run-tcg-tests-$target: $qemu\$(EXESUF)" >> Makefile.prereqs
1812       tcg_tests_targets="$tcg_tests_targets $target"
1813   fi
1814 done
1815
1816 if test "$tcg" = "enabled"; then
1817     echo "TCG_TESTS_TARGETS=$tcg_tests_targets" >> config-host.mak
1818 fi
1819 )
1820
1821 if test "$skip_meson" = no; then
1822   cross="config-meson.cross.new"
1823   meson_quote() {
1824     test $# = 0 && return
1825     echo "'$(echo $* | sed "s/ /','/g")'"
1826   }
1827
1828   echo "# Automatically generated by configure - do not modify" > $cross
1829   echo "[properties]" >> $cross
1830
1831   # unroll any custom device configs
1832   for a in $device_archs; do
1833       eval "c=\$devices_${a}"
1834       echo "${a}-softmmu = '$c'" >> $cross
1835   done
1836
1837   echo "[built-in options]" >> $cross
1838   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
1839   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
1840   test -n "$objcc" && echo "objc_args = [$(meson_quote $OBJCFLAGS $EXTRA_OBJCFLAGS)]" >> $cross
1841   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
1842   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
1843   echo "[binaries]" >> $cross
1844   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
1845   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
1846   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
1847   echo "ar = [$(meson_quote $ar)]" >> $cross
1848   echo "nm = [$(meson_quote $nm)]" >> $cross
1849   echo "pkgconfig = [$(meson_quote $pkg_config)]" >> $cross
1850   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
1851   if has $sdl2_config; then
1852     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
1853   fi
1854   echo "strip = [$(meson_quote $strip)]" >> $cross
1855   echo "widl = [$(meson_quote $widl)]" >> $cross
1856   echo "windres = [$(meson_quote $windres)]" >> $cross
1857   echo "windmc = [$(meson_quote $windmc)]" >> $cross
1858   if test "$cross_compile" = "yes"; then
1859     cross_arg="--cross-file config-meson.cross"
1860     echo "[host_machine]" >> $cross
1861     echo "system = '$targetos'" >> $cross
1862     case "$cpu" in
1863         i386)
1864             echo "cpu_family = 'x86'" >> $cross
1865             ;;
1866         *)
1867             echo "cpu_family = '$cpu'" >> $cross
1868             ;;
1869     esac
1870     echo "cpu = '$cpu'" >> $cross
1871     if test "$bigendian" = "yes" ; then
1872         echo "endian = 'big'" >> $cross
1873     else
1874         echo "endian = 'little'" >> $cross
1875     fi
1876   else
1877     cross_arg="--native-file config-meson.cross"
1878   fi
1879   mv $cross config-meson.cross
1880
1881   rm -rf meson-private meson-info meson-logs
1882
1883   # Built-in options
1884   test "$download" = "disabled" && meson_option_add "--wrap-mode=nodownload"
1885   test "$bindir" != "bin" && meson_option_add "-Dbindir=$bindir"
1886   test "$default_feature" = no && meson_option_add -Dauto_features=disabled
1887   test "$static" = yes && meson_option_add -Dprefer_static=true
1888   test "$pie" = no && meson_option_add -Db_pie=false
1889   test "$werror" = yes && meson_option_add -Dwerror=true
1890
1891   # QEMU options
1892   test "$cfi" != false && meson_option_add "-Dcfi=$cfi"
1893   test "$docs" != auto && meson_option_add "-Ddocs=$docs"
1894   test -n "${LIB_FUZZING_ENGINE+xxx}" && meson_option_add "-Dfuzzing_engine=$LIB_FUZZING_ENGINE"
1895   test "$qemu_suffix" != qemu && meson_option_add "-Dqemu_suffix=$qemu_suffix"
1896   test "$smbd" != '' && meson_option_add "-Dsmbd=$smbd"
1897   test "$tcg" != enabled && meson_option_add "-Dtcg=$tcg"
1898   run_meson() {
1899     NINJA=$ninja $meson setup --prefix "$prefix" "$@" $cross_arg "$PWD" "$source_path"
1900   }
1901   eval run_meson $meson_options
1902   if test "$?" -ne 0 ; then
1903       error_exit "meson setup failed"
1904   fi
1905   echo "$meson" > build.ninja.stamp
1906 else
1907   if test -f meson-private/cmd_line.txt; then
1908     # Adjust old command line options that were removed
1909     # sed -i is not portable
1910     perl -i -ne '
1911       /^sphinx_build/ && next;
1912       print;' meson-private/cmd_line.txt
1913   fi
1914 fi
1915
1916 # Save the configure command line for later reuse.
1917 cat <<EOD >config.status
1918 #!/bin/sh
1919 # Generated by configure.
1920 # Run this file to recreate the current configuration.
1921 # Compiler output produced by configure, useful for debugging
1922 # configure, is in config.log if it exists.
1923 EOD
1924
1925 preserve_env() {
1926     envname=$1
1927
1928     eval envval=\$$envname
1929
1930     if test -n "$envval"
1931     then
1932         echo "$envname='$envval'" >> config.status
1933         echo "export $envname" >> config.status
1934     else
1935         echo "unset $envname" >> config.status
1936     fi
1937 }
1938
1939 # Preserve various env variables that influence what
1940 # features/build target configure will detect
1941 preserve_env AR
1942 preserve_env AS
1943 preserve_env CC
1944 preserve_env CFLAGS
1945 preserve_env CXX
1946 preserve_env CXXFLAGS
1947 preserve_env LD
1948 preserve_env LDFLAGS
1949 preserve_env LD_LIBRARY_PATH
1950 preserve_env NM
1951 preserve_env OBJCFLAGS
1952 preserve_env OBJCOPY
1953 preserve_env PATH
1954 preserve_env PKG_CONFIG
1955 preserve_env PKG_CONFIG_LIBDIR
1956 preserve_env PKG_CONFIG_PATH
1957 preserve_env PYTHON
1958 preserve_env QEMU_GA_MANUFACTURER
1959 preserve_env QEMU_GA_DISTRO
1960 preserve_env QEMU_GA_VERSION
1961 preserve_env SDL2_CONFIG
1962 preserve_env SMBD
1963 preserve_env STRIP
1964 preserve_env WIDL
1965 preserve_env WINDRES
1966 preserve_env WINDMC
1967
1968 printf "exec" >>config.status
1969 for i in "$0" "$@"; do
1970   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
1971 done
1972 echo ' "$@"' >>config.status
1973 chmod +x config.status
1974
1975 rm -r "$TMPDIR1"