configure

   1 #!/bin/sh
   2 #
   3 # qemu configure script (c) 2003 Fabrice Bellard
   4 #
   5
   6 # Unset some variables known to interfere with behavior of common tools,
   7 # just as autoconf does.
   8 CLICOLOR_FORCE= GREP_OPTIONS=
   9 unset CLICOLOR_FORCE GREP_OPTIONS
  10
  11 # Don't allow CCACHE, if present, to use cached results of compile tests!
  12 export CCACHE_RECACHE=yes
  13
  14 # make source path absolute
  15 source_path=$(cd "$(dirname -- "$0")"; pwd)
  16
  17 if test "$PWD" = "$source_path"
  18 then
  19     echo "Using './build' as the directory for build output"
  20
  21     MARKER=build/auto-created-by-configure
  22
  23     if test -e build
  24     then
  25         if test -f $MARKER
  26         then
  27            rm -rf build
  28         else
  29             echo "ERROR: ./build dir already exists and was not previously created by configure"
  30             exit 1
  31         fi
  32     fi
  33
  34     mkdir build
  35     touch $MARKER
  36
  37     cat > GNUmakefile <<'EOF'
  38 # This file is auto-generated by configure to support in-source tree
  39 # 'make' command invocation
  40
  41 ifeq ($(MAKECMDGOALS),)
  42 recurse: all
  43 endif
  44
  45 .NOTPARALLEL: %
  46 %: force
  47         @echo 'changing dir to build for $(MAKE) "$(MAKECMDGOALS)"...'
  48         @$(MAKE) -C build -f Makefile $(MAKECMDGOALS)
  49         @if test "$(MAKECMDGOALS)" = "distclean" && \
  50             test -e build/auto-created-by-configure ; \
  51         then \
  52             rm -rf build GNUmakefile ; \
  53         fi
  54 force: ;
  55 .PHONY: force
  56 GNUmakefile: ;
  57
  58 EOF
  59     cd build
  60     exec $source_path/configure "$@"
  61 fi
  62
  63 # Temporary directory used for files created while
  64 # configure runs. Since it is in the build directory
  65 # we can safely blow away any previous version of it
  66 # (and we need not jump through hoops to try to delete
  67 # it when configure exits.)
  68 TMPDIR1="config-temp"
  69 rm -rf "${TMPDIR1}"
  70 mkdir -p "${TMPDIR1}"
  71 if [ $? -ne 0 ]; then
  72     echo "ERROR: failed to create temporary directory"
  73     exit 1
  74 fi
  75
  76 TMPB="qemu-conf"
  77 TMPC="${TMPDIR1}/${TMPB}.c"
  78 TMPO="${TMPDIR1}/${TMPB}.o"
  79 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
  80 TMPE="${TMPDIR1}/${TMPB}.exe"
  81
  82 rm -f config.log
  83
  84 # Print a helpful header at the top of config.log
  85 echo "# QEMU configure log $(date)" >> config.log
  86 printf "# Configured with:" >> config.log
  87 printf " '%s'" "$0" "$@" >> config.log
  88 echo >> config.log
  89 echo "#" >> config.log
  90
  91 quote_sh() {
  92     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  93 }
  94
  95 print_error() {
  96     (echo
  97     echo "ERROR: $1"
  98     while test -n "$2"; do
  99         echo "       $2"
 100         shift
 101     done
 102     echo) >&2
 103 }
 104
 105 error_exit() {
 106     print_error "$@"
 107     exit 1
 108 }
 109
 110 do_compiler() {
 111     # Run the compiler, capturing its output to the log. First argument
 112     # is compiler binary to execute.
 113     compiler="$1"
 114     shift
 115     if test -n "$BASH_VERSION"; then eval '
 116         echo >>config.log "
 117 funcs: ${FUNCNAME[*]}
 118 lines: ${BASH_LINENO[*]}"
 119     '; fi
 120     echo $compiler "$@" >> config.log
 121     $compiler "$@" >> config.log 2>&1 || return $?
 122     # Test passed. If this is an --enable-werror build, rerun
 123     # the test with -Werror and bail out if it fails. This
 124     # makes warning-generating-errors in configure test code
 125     # obvious to developers.
 126     if test "$werror" != "yes"; then
 127         return 0
 128     fi
 129     # Don't bother rerunning the compile if we were already using -Werror
 130     case "$*" in
 131         *-Werror*)
 132            return 0
 133         ;;
 134     esac
 135     echo $compiler -Werror "$@" >> config.log
 136     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 137     error_exit "configure test passed without -Werror but failed with -Werror." \
 138         "This is probably a bug in the configure script. The failing command" \
 139         "will be at the bottom of config.log." \
 140         "You can run configure with --disable-werror to bypass this check."
 141 }
 142
 143 do_cc() {
 144     do_compiler "$cc" $CPU_CFLAGS "$@"
 145 }
 146
 147 do_cxx() {
 148     do_compiler "$cxx" $CPU_CFLAGS "$@"
 149 }
 150
 151 # Append $2 to the variable named $1, with space separation
 152 add_to() {
 153     eval $1=\${$1:+\"\$$1 \"}\$2
 154 }
 155
 156 update_cxxflags() {
 157     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 158     # options which some versions of GCC's C++ compiler complain about
 159     # because they only make sense for C programs.
 160     QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 161     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu11/-std=gnu++11/)
 162     for arg in $QEMU_CFLAGS; do
 163         case $arg in
 164             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 165             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 166                 ;;
 167             *)
 168                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 169                 ;;
 170         esac
 171     done
 172 }
 173
 174 compile_object() {
 175   local_cflags="$1"
 176   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 177 }
 178
 179 compile_prog() {
 180   local_cflags="$1"
 181   local_ldflags="$2"
 182   do_cc $CFLAGS $EXTRA_CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 183       $LDFLAGS $EXTRA_LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 184 }
 185
 186 # symbolically link $1 to $2.  Portable version of "ln -sf".
 187 symlink() {
 188   rm -rf "$2"
 189   mkdir -p "$(dirname "$2")"
 190   ln -s "$1" "$2"
 191 }
 192
 193 # check whether a command is available to this shell (may be either an
 194 # executable or a builtin)
 195 has() {
 196     type "$1" >/dev/null 2>&1
 197 }
 198
 199 version_ge () {
 200     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 201     local_ver2=$(echo "$2" | tr . ' ')
 202     while true; do
 203         set x $local_ver1
 204         local_first=${2-0}
 205         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 206         shift ${2:+2}
 207         local_ver1=$*
 208         set x $local_ver2
 209         # the second argument finished, the first must be greater or equal
 210         test $# = 1 && return 0
 211         test $local_first -lt $2 && return 1
 212         test $local_first -gt $2 && return 0
 213         shift ${2:+2}
 214         local_ver2=$*
 215     done
 216 }
 217
 218 glob() {
 219     eval test -z '"${1#'"$2"'}"'
 220 }
 221
 222 ld_has() {
 223     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 224 }
 225
 226 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 227 then
 228   error_exit "main directory cannot contain spaces nor colons"
 229 fi
 230
 231 # default parameters
 232 cpu=""
 233 iasl="iasl"
 234 interp_prefix="/usr/gnemul/qemu-%M"
 235 static="no"
 236 cross_compile="no"
 237 cross_prefix=""
 238 audio_drv_list="default"
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 block_drv_whitelist_tools="no"
 242 host_cc="cc"
 243 libs_qga=""
 244 debug_info="yes"
 245 lto="false"
 246 stack_protector=""
 247 safe_stack=""
 248 use_containers="yes"
 249 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 250
 251 if test -e "$source_path/.git"
 252 then
 253     git_submodules_action="update"
 254 else
 255     git_submodules_action="ignore"
 256 fi
 257
 258 git_submodules="ui/keycodemapdb"
 259 git="git"
 260
 261 # Don't accept a target_list environment variable.
 262 unset target_list
 263 unset target_list_exclude
 264
 265 # Default value for a variable defining feature "foo".
 266 #  * foo="no"  feature will only be used if --enable-foo arg is given
 267 #  * foo=""    feature will be searched for, and if found, will be used
 268 #              unless --disable-foo is given
 269 #  * foo="yes" this value will only be set by --enable-foo flag.
 270 #              feature will searched for,
 271 #              if not found, configure exits with error
 272 #
 273 # Always add --enable-foo and --disable-foo command line args.
 274 # Distributions want to ensure that several features are compiled in, and it
 275 # is impossible without a --enable-foo that exits if a feature is not found.
 276
 277 default_feature=""
 278 # parse CC options second
 279 for opt do
 280   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 281   case "$opt" in
 282       --without-default-features)
 283           default_feature="no"
 284   ;;
 285   esac
 286 done
 287
 288 EXTRA_CFLAGS=""
 289 EXTRA_CXXFLAGS=""
 290 EXTRA_LDFLAGS=""
 291
 292 xen_ctrl_version="$default_feature"
 293 membarrier="$default_feature"
 294 vhost_kernel="$default_feature"
 295 vhost_net="$default_feature"
 296 vhost_crypto="$default_feature"
 297 vhost_scsi="$default_feature"
 298 vhost_vsock="$default_feature"
 299 vhost_user="no"
 300 vhost_user_fs="$default_feature"
 301 vhost_vdpa="$default_feature"
 302 rdma="$default_feature"
 303 pvrdma="$default_feature"
 304 gprof="no"
 305 debug_tcg="no"
 306 debug="no"
 307 sanitizers="no"
 308 tsan="no"
 309 fortify_source="$default_feature"
 310 gcov="no"
 311 EXESUF=""
 312 modules="no"
 313 module_upgrades="no"
 314 prefix="/usr/local"
 315 qemu_suffix="qemu"
 316 profiler="no"
 317 softmmu="yes"
 318 linux_user=""
 319 bsd_user=""
 320 pkgversion=""
 321 pie=""
 322 qom_cast_debug="yes"
 323 trace_backends="log"
 324 trace_file="trace"
 325 opengl="$default_feature"
 326 cpuid_h="no"
 327 avx2_opt="$default_feature"
 328 guest_agent="$default_feature"
 329 vss_win32_sdk="$default_feature"
 330 win_sdk="no"
 331 want_tools="$default_feature"
 332 coroutine=""
 333 coroutine_pool="$default_feature"
 334 debug_stack_usage="no"
 335 crypto_afalg="no"
 336 tls_priority="NORMAL"
 337 tpm="$default_feature"
 338 live_block_migration=${default_feature:-yes}
 339 numa="$default_feature"
 340 replication=${default_feature:-yes}
 341 bochs=${default_feature:-yes}
 342 cloop=${default_feature:-yes}
 343 dmg=${default_feature:-yes}
 344 qcow1=${default_feature:-yes}
 345 vdi=${default_feature:-yes}
 346 vvfat=${default_feature:-yes}
 347 qed=${default_feature:-yes}
 348 parallels=${default_feature:-yes}
 349 debug_mutex="no"
 350 plugins="$default_feature"
 351 rng_none="no"
 352 secret_keyring="$default_feature"
 353 meson=""
 354 meson_args=""
 355 ninja=""
 356 gio="$default_feature"
 357 skip_meson=no
 358 slirp_smbd="$default_feature"
 359
 360 # The following Meson options are handled manually (still they
 361 # are included in the automatically generated help message)
 362
 363 # 1. Track which submodules are needed
 364 capstone="auto"
 365 fdt="auto"
 366 slirp="auto"
 367
 368 # 2. Support --with/--without option
 369 default_devices="true"
 370
 371 # 3. Automatically enable/disable other options
 372 tcg="enabled"
 373 cfi="false"
 374
 375 # 4. Detection partly done in configure
 376 xen=${default_feature:+disabled}
 377
 378 # parse CC options second
 379 for opt do
 380   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 381   case "$opt" in
 382   --cross-prefix=*) cross_prefix="$optarg"
 383                     cross_compile="yes"
 384   ;;
 385   --cc=*) CC="$optarg"
 386   ;;
 387   --cxx=*) CXX="$optarg"
 388   ;;
 389   --cpu=*) cpu="$optarg"
 390   ;;
 391   --extra-cflags=*)
 392     EXTRA_CFLAGS="$EXTRA_CFLAGS $optarg"
 393     EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 394     ;;
 395   --extra-cxxflags=*) EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS $optarg"
 396   ;;
 397   --extra-ldflags=*) EXTRA_LDFLAGS="$EXTRA_LDFLAGS $optarg"
 398   ;;
 399   --enable-debug-info) debug_info="yes"
 400   ;;
 401   --disable-debug-info) debug_info="no"
 402   ;;
 403   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 404   ;;
 405   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-cflags-}; cc_arch=${cc_arch%%=*}
 406                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 407                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 408   ;;
 409   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 410                 cc_archs="$cc_archs $cc_arch"
 411                 eval "cross_cc_${cc_arch}=\$optarg"
 412                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 413   ;;
 414   esac
 415 done
 416 # OS specific
 417 # Using uname is really, really broken.  Once we have the right set of checks
 418 # we can eliminate its usage altogether.
 419
 420 # Preferred compiler:
 421 #  ${CC} (if set)
 422 #  ${cross_prefix}gcc (if cross-prefix specified)
 423 #  system compiler
 424 if test -z "${CC}${cross_prefix}"; then
 425   cc="$host_cc"
 426 else
 427   cc="${CC-${cross_prefix}gcc}"
 428 fi
 429
 430 if test -z "${CXX}${cross_prefix}"; then
 431   cxx="c++"
 432 else
 433   cxx="${CXX-${cross_prefix}g++}"
 434 fi
 435
 436 ar="${AR-${cross_prefix}ar}"
 437 as="${AS-${cross_prefix}as}"
 438 ccas="${CCAS-$cc}"
 439 cpp="${CPP-$cc -E}"
 440 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 441 ld="${LD-${cross_prefix}ld}"
 442 ranlib="${RANLIB-${cross_prefix}ranlib}"
 443 nm="${NM-${cross_prefix}nm}"
 444 strip="${STRIP-${cross_prefix}strip}"
 445 windres="${WINDRES-${cross_prefix}windres}"
 446 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 447 query_pkg_config() {
 448     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 449 }
 450 pkg_config=query_pkg_config
 451 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 452
 453 # default flags for all hosts
 454 # We use -fwrapv to tell the compiler that we require a C dialect where
 455 # left shift of signed integers is well defined and has the expected
 456 # 2s-complement style results. (Both clang and gcc agree that it
 457 # provides these semantics.)
 458 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
 459 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 460 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 461 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 462
 463 QEMU_LDFLAGS=
 464
 465 # Flags that are needed during configure but later taken care of by Meson
 466 CONFIGURE_CFLAGS="-std=gnu11 -Wall"
 467 CONFIGURE_LDFLAGS=
 468
 469
 470 check_define() {
 471 cat > $TMPC <<EOF
 472 #if !defined($1)
 473 #error $1 not defined
 474 #endif
 475 int main(void) { return 0; }
 476 EOF
 477   compile_object
 478 }
 479
 480 check_include() {
 481 cat > $TMPC <<EOF
 482 #include <$1>
 483 int main(void) { return 0; }
 484 EOF
 485   compile_object
 486 }
 487
 488 write_c_skeleton() {
 489     cat > $TMPC <<EOF
 490 int main(void) { return 0; }
 491 EOF
 492 }
 493
 494 if check_define __linux__ ; then
 495   targetos=linux
 496 elif check_define _WIN32 ; then
 497   targetos=windows
 498 elif check_define __OpenBSD__ ; then
 499   targetos=openbsd
 500 elif check_define __sun__ ; then
 501   targetos=sunos
 502 elif check_define __HAIKU__ ; then
 503   targetos=haiku
 504 elif check_define __FreeBSD__ ; then
 505   targetos=freebsd
 506 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 507   targetos=gnu/kfreebsd
 508 elif check_define __DragonFly__ ; then
 509   targetos=dragonfly
 510 elif check_define __NetBSD__; then
 511   targetos=netbsd
 512 elif check_define __APPLE__; then
 513   targetos=darwin
 514 else
 515   # This is a fatal error, but don't report it yet, because we
 516   # might be going to just print the --help text, or it might
 517   # be the result of a missing compiler.
 518   targetos=bogus
 519 fi
 520
 521 # OS specific
 522
 523 mingw32="no"
 524 bsd="no"
 525 linux="no"
 526 solaris="no"
 527 case $targetos in
 528 windows)
 529   mingw32="yes"
 530   plugins="no"
 531   pie="no"
 532 ;;
 533 gnu/kfreebsd)
 534   bsd="yes"
 535 ;;
 536 freebsd)
 537   bsd="yes"
 538   make="${MAKE-gmake}"
 539   # needed for kinfo_getvmmap(3) in libutil.h
 540 ;;
 541 dragonfly)
 542   bsd="yes"
 543   make="${MAKE-gmake}"
 544 ;;
 545 netbsd)
 546   bsd="yes"
 547   make="${MAKE-gmake}"
 548 ;;
 549 openbsd)
 550   bsd="yes"
 551   make="${MAKE-gmake}"
 552 ;;
 553 darwin)
 554   bsd="yes"
 555   darwin="yes"
 556   # Disable attempts to use ObjectiveC features in os/object.h since they
 557   # won't work when we're compiling with gcc as a C compiler.
 558   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 559 ;;
 560 sunos)
 561   solaris="yes"
 562   make="${MAKE-gmake}"
 563   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 564 # needed for CMSG_ macros in sys/socket.h
 565   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 566 # needed for TIOCWIN* defines in termios.h
 567   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 568   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 569   # Note that this check is broken for cross-compilation: if you're
 570   # cross-compiling to one of these OSes then you'll need to specify
 571   # the correct CPU with the --cpu option.
 572   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 573     cpu="x86_64"
 574   fi
 575 ;;
 576 haiku)
 577   pie="no"
 578   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE -fPIC $QEMU_CFLAGS"
 579 ;;
 580 linux)
 581   linux="yes"
 582   vhost_user=${default_feature:-yes}
 583 ;;
 584 esac
 585
 586 if test ! -z "$cpu" ; then
 587   # command line argument
 588   :
 589 elif check_define __i386__ ; then
 590   cpu="i386"
 591 elif check_define __x86_64__ ; then
 592   if check_define __ILP32__ ; then
 593     cpu="x32"
 594   else
 595     cpu="x86_64"
 596   fi
 597 elif check_define __sparc__ ; then
 598   if check_define __arch64__ ; then
 599     cpu="sparc64"
 600   else
 601     cpu="sparc"
 602   fi
 603 elif check_define _ARCH_PPC ; then
 604   if check_define _ARCH_PPC64 ; then
 605     if check_define _LITTLE_ENDIAN ; then
 606       cpu="ppc64le"
 607     else
 608       cpu="ppc64"
 609     fi
 610   else
 611     cpu="ppc"
 612   fi
 613 elif check_define __mips__ ; then
 614   cpu="mips"
 615 elif check_define __s390__ ; then
 616   if check_define __s390x__ ; then
 617     cpu="s390x"
 618   else
 619     cpu="s390"
 620   fi
 621 elif check_define __riscv ; then
 622   cpu="riscv"
 623 elif check_define __arm__ ; then
 624   cpu="arm"
 625 elif check_define __aarch64__ ; then
 626   cpu="aarch64"
 627 elif check_define __loongarch64 ; then
 628   cpu="loongarch64"
 629 else
 630   cpu=$(uname -m)
 631 fi
 632
 633 # Normalise host CPU name, set multilib cflags
 634 # Note that this case should only have supported host CPUs, not guests.
 635 case "$cpu" in
 636   armv*b|armv*l|arm)
 637     cpu="arm" ;;
 638
 639   i386|i486|i586|i686|i86pc|BePC)
 640     cpu="i386"
 641     CPU_CFLAGS="-m32" ;;
 642   x32)
 643     cpu="x86_64"
 644     CPU_CFLAGS="-mx32" ;;
 645   x86_64|amd64)
 646     cpu="x86_64"
 647     # ??? Only extremely old AMD cpus do not have cmpxchg16b.
 648     # If we truly care, we should simply detect this case at
 649     # runtime and generate the fallback to serial emulation.
 650     CPU_CFLAGS="-m64 -mcx16" ;;
 651
 652   mips*)
 653     cpu="mips" ;;
 654
 655   ppc)
 656     CPU_CFLAGS="-m32" ;;
 657   ppc64)
 658     CPU_CFLAGS="-m64 -mbig" ;;
 659   ppc64le)
 660     cpu="ppc64"
 661     CPU_CFLAGS="-m64 -mlittle" ;;
 662
 663   s390)
 664     CPU_CFLAGS="-m31" ;;
 665   s390x)
 666     CPU_CFLAGS="-m64" ;;
 667
 668   sparc|sun4[cdmuv])
 669     cpu="sparc"
 670     CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc" ;;
 671   sparc64)
 672     CPU_CFLAGS="-m64 -mcpu=ultrasparc" ;;
 673 esac
 674
 675 : ${make=${MAKE-make}}
 676
 677 # We prefer python 3.x. A bare 'python' is traditionally
 678 # python 2.x, but some distros have it as python 3.x, so
 679 # we check that too
 680 python=
 681 explicit_python=no
 682 for binary in "${PYTHON-python3}" python
 683 do
 684     if has "$binary"
 685     then
 686         python=$(command -v "$binary")
 687         break
 688     fi
 689 done
 690
 691
 692 # Check for ancillary tools used in testing
 693 genisoimage=
 694 for binary in genisoimage mkisofs
 695 do
 696     if has $binary
 697     then
 698         genisoimage=$(command -v "$binary")
 699         break
 700     fi
 701 done
 702
 703 # Default objcc to clang if available, otherwise use CC
 704 if has clang; then
 705   objcc=clang
 706 else
 707   objcc="$cc"
 708 fi
 709
 710 if test "$mingw32" = "yes" ; then
 711   EXESUF=".exe"
 712   # MinGW needs -mthreads for TLS and macro _MT.
 713   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 714   write_c_skeleton;
 715   prefix="/qemu"
 716   qemu_suffix=""
 717   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 718 fi
 719
 720 werror=""
 721
 722 . $source_path/scripts/meson-buildoptions.sh
 723
 724 meson_options=
 725 meson_option_parse() {
 726   meson_options="$meson_options $(_meson_option_parse "$@")"
 727   if test $? -eq 1; then
 728     echo "ERROR: unknown option $1"
 729     echo "Try '$0 --help' for more information"
 730     exit 1
 731   fi
 732 }
 733
 734 for opt do
 735   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 736   case "$opt" in
 737   --help|-h) show_help=yes
 738   ;;
 739   --version|-V) exec cat $source_path/VERSION
 740   ;;
 741   --prefix=*) prefix="$optarg"
 742   ;;
 743   --interp-prefix=*) interp_prefix="$optarg"
 744   ;;
 745   --cross-prefix=*)
 746   ;;
 747   --cc=*)
 748   ;;
 749   --host-cc=*) host_cc="$optarg"
 750   ;;
 751   --cxx=*)
 752   ;;
 753   --iasl=*) iasl="$optarg"
 754   ;;
 755   --objcc=*) objcc="$optarg"
 756   ;;
 757   --make=*) make="$optarg"
 758   ;;
 759   --install=*)
 760   ;;
 761   --python=*) python="$optarg" ; explicit_python=yes
 762   ;;
 763   --sphinx-build=*) sphinx_build="$optarg"
 764   ;;
 765   --skip-meson) skip_meson=yes
 766   ;;
 767   --meson=*) meson="$optarg"
 768   ;;
 769   --ninja=*) ninja="$optarg"
 770   ;;
 771   --smbd=*) smbd="$optarg"
 772   ;;
 773   --extra-cflags=*)
 774   ;;
 775   --extra-cxxflags=*)
 776   ;;
 777   --extra-ldflags=*)
 778   ;;
 779   --enable-debug-info)
 780   ;;
 781   --disable-debug-info)
 782   ;;
 783   --cross-cc-*)
 784   ;;
 785   --enable-modules)
 786       modules="yes"
 787   ;;
 788   --disable-modules)
 789       modules="no"
 790   ;;
 791   --disable-module-upgrades) module_upgrades="no"
 792   ;;
 793   --enable-module-upgrades) module_upgrades="yes"
 794   ;;
 795   --cpu=*)
 796   ;;
 797   --target-list=*) target_list="$optarg"
 798                    if test "$target_list_exclude"; then
 799                        error_exit "Can't mix --target-list with --target-list-exclude"
 800                    fi
 801   ;;
 802   --target-list-exclude=*) target_list_exclude="$optarg"
 803                    if test "$target_list"; then
 804                        error_exit "Can't mix --target-list-exclude with --target-list"
 805                    fi
 806   ;;
 807   --with-trace-file=*) trace_file="$optarg"
 808   ;;
 809   --with-default-devices) default_devices="true"
 810   ;;
 811   --without-default-devices) default_devices="false"
 812   ;;
 813   --with-devices-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --with-devices-FOO option"
 814   ;;
 815   --with-devices-*) device_arch=${opt#--with-devices-};
 816                     device_arch=${device_arch%%=*}
 817                     cf=$source_path/configs/devices/$device_arch-softmmu/$optarg.mak
 818                     if test -f "$cf"; then
 819                         device_archs="$device_archs $device_arch"
 820                         eval "devices_${device_arch}=\$optarg"
 821                     else
 822                         error_exit "File $cf does not exist"
 823                     fi
 824   ;;
 825   --without-default-features) # processed above
 826   ;;
 827   --enable-gprof) gprof="yes"
 828   ;;
 829   --enable-gcov) gcov="yes"
 830   ;;
 831   --static)
 832     static="yes"
 833     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 834   ;;
 835   --mandir=*) mandir="$optarg"
 836   ;;
 837   --bindir=*) bindir="$optarg"
 838   ;;
 839   --libdir=*) libdir="$optarg"
 840   ;;
 841   --libexecdir=*) libexecdir="$optarg"
 842   ;;
 843   --includedir=*) includedir="$optarg"
 844   ;;
 845   --datadir=*) datadir="$optarg"
 846   ;;
 847   --with-suffix=*) qemu_suffix="$optarg"
 848   ;;
 849   --docdir=*) docdir="$optarg"
 850   ;;
 851   --localedir=*) localedir="$optarg"
 852   ;;
 853   --sysconfdir=*) sysconfdir="$optarg"
 854   ;;
 855   --localstatedir=*) local_statedir="$optarg"
 856   ;;
 857   --firmwarepath=*) firmwarepath="$optarg"
 858   ;;
 859   --host=*|--build=*|\
 860   --disable-dependency-tracking|\
 861   --sbindir=*|--sharedstatedir=*|\
 862   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 863   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 864     # These switches are silently ignored, for compatibility with
 865     # autoconf-generated configure scripts. This allows QEMU's
 866     # configure to be used by RPM and similar macros that set
 867     # lots of directory switches by default.
 868   ;;
 869   --disable-qom-cast-debug) qom_cast_debug="no"
 870   ;;
 871   --enable-qom-cast-debug) qom_cast_debug="yes"
 872   ;;
 873   --audio-drv-list=*) audio_drv_list="$optarg"
 874   ;;
 875   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 876   ;;
 877   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
 878   ;;
 879   --enable-block-drv-whitelist-in-tools) block_drv_whitelist_tools="yes"
 880   ;;
 881   --disable-block-drv-whitelist-in-tools) block_drv_whitelist_tools="no"
 882   ;;
 883   --enable-debug-tcg) debug_tcg="yes"
 884   ;;
 885   --disable-debug-tcg) debug_tcg="no"
 886   ;;
 887   --enable-debug)
 888       # Enable debugging options that aren't excessively noisy
 889       debug_tcg="yes"
 890       debug_mutex="yes"
 891       debug="yes"
 892       fortify_source="no"
 893   ;;
 894   --enable-sanitizers) sanitizers="yes"
 895   ;;
 896   --disable-sanitizers) sanitizers="no"
 897   ;;
 898   --enable-tsan) tsan="yes"
 899   ;;
 900   --disable-tsan) tsan="no"
 901   ;;
 902   --disable-slirp) slirp="disabled"
 903   ;;
 904   --enable-slirp) slirp="enabled"
 905   ;;
 906   --enable-slirp=git) slirp="internal"
 907   ;;
 908   --enable-slirp=*) slirp="$optarg"
 909   ;;
 910   --disable-xen) xen="disabled"
 911   ;;
 912   --enable-xen) xen="enabled"
 913   ;;
 914   --disable-tcg) tcg="disabled"
 915                  plugins="no"
 916   ;;
 917   --enable-tcg) tcg="enabled"
 918   ;;
 919   --enable-profiler) profiler="yes"
 920   ;;
 921   --disable-system) softmmu="no"
 922   ;;
 923   --enable-system) softmmu="yes"
 924   ;;
 925   --disable-user)
 926       linux_user="no" ;
 927       bsd_user="no" ;
 928   ;;
 929   --enable-user) ;;
 930   --disable-linux-user) linux_user="no"
 931   ;;
 932   --enable-linux-user) linux_user="yes"
 933   ;;
 934   --disable-bsd-user) bsd_user="no"
 935   ;;
 936   --enable-bsd-user) bsd_user="yes"
 937   ;;
 938   --enable-pie) pie="yes"
 939   ;;
 940   --disable-pie) pie="no"
 941   ;;
 942   --enable-werror) werror="yes"
 943   ;;
 944   --disable-werror) werror="no"
 945   ;;
 946   --enable-lto) lto="true"
 947   ;;
 948   --disable-lto) lto="false"
 949   ;;
 950   --enable-stack-protector) stack_protector="yes"
 951   ;;
 952   --disable-stack-protector) stack_protector="no"
 953   ;;
 954   --enable-safe-stack) safe_stack="yes"
 955   ;;
 956   --disable-safe-stack) safe_stack="no"
 957   ;;
 958   --enable-cfi)
 959       cfi="true";
 960       lto="true";
 961   ;;
 962   --disable-cfi) cfi="false"
 963   ;;
 964   --disable-fdt) fdt="disabled"
 965   ;;
 966   --enable-fdt) fdt="enabled"
 967   ;;
 968   --enable-fdt=git) fdt="internal"
 969   ;;
 970   --enable-fdt=*) fdt="$optarg"
 971   ;;
 972   --disable-membarrier) membarrier="no"
 973   ;;
 974   --enable-membarrier) membarrier="yes"
 975   ;;
 976   --with-pkgversion=*) pkgversion="$optarg"
 977   ;;
 978   --with-coroutine=*) coroutine="$optarg"
 979   ;;
 980   --disable-coroutine-pool) coroutine_pool="no"
 981   ;;
 982   --enable-coroutine-pool) coroutine_pool="yes"
 983   ;;
 984   --enable-debug-stack-usage) debug_stack_usage="yes"
 985   ;;
 986   --enable-crypto-afalg) crypto_afalg="yes"
 987   ;;
 988   --disable-crypto-afalg) crypto_afalg="no"
 989   ;;
 990   --disable-vhost-net) vhost_net="no"
 991   ;;
 992   --enable-vhost-net) vhost_net="yes"
 993   ;;
 994   --disable-vhost-crypto) vhost_crypto="no"
 995   ;;
 996   --enable-vhost-crypto) vhost_crypto="yes"
 997   ;;
 998   --disable-vhost-scsi) vhost_scsi="no"
 999   ;;
1000   --enable-vhost-scsi) vhost_scsi="yes"
1001   ;;
1002   --disable-vhost-vsock) vhost_vsock="no"
1003   ;;
1004   --enable-vhost-vsock) vhost_vsock="yes"
1005   ;;
1006   --disable-vhost-user-fs) vhost_user_fs="no"
1007   ;;
1008   --enable-vhost-user-fs) vhost_user_fs="yes"
1009   ;;
1010   --disable-opengl) opengl="no"
1011   ;;
1012   --enable-opengl) opengl="yes"
1013   ;;
1014   --disable-zlib-test)
1015   ;;
1016   --enable-guest-agent) guest_agent="yes"
1017   ;;
1018   --disable-guest-agent) guest_agent="no"
1019   ;;
1020   --with-vss-sdk) vss_win32_sdk=""
1021   ;;
1022   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1023   ;;
1024   --without-vss-sdk) vss_win32_sdk="no"
1025   ;;
1026   --with-win-sdk) win_sdk=""
1027   ;;
1028   --with-win-sdk=*) win_sdk="$optarg"
1029   ;;
1030   --without-win-sdk) win_sdk="no"
1031   ;;
1032   --enable-tools) want_tools="yes"
1033   ;;
1034   --disable-tools) want_tools="no"
1035   ;;
1036   --disable-avx2) avx2_opt="no"
1037   ;;
1038   --enable-avx2) avx2_opt="yes"
1039   ;;
1040   --disable-avx512f) avx512f_opt="no"
1041   ;;
1042   --enable-avx512f) avx512f_opt="yes"
1043   ;;
1044   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1045       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1046   ;;
1047   --enable-vhdx|--disable-vhdx)
1048       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1049   ;;
1050   --enable-uuid|--disable-uuid)
1051       echo "$0: $opt is obsolete, UUID support is always built" >&2
1052   ;;
1053   --tls-priority=*) tls_priority="$optarg"
1054   ;;
1055   --enable-rdma) rdma="yes"
1056   ;;
1057   --disable-rdma) rdma="no"
1058   ;;
1059   --enable-pvrdma) pvrdma="yes"
1060   ;;
1061   --disable-pvrdma) pvrdma="no"
1062   ;;
1063   --disable-tpm) tpm="no"
1064   ;;
1065   --enable-tpm) tpm="yes"
1066   ;;
1067   --disable-live-block-migration) live_block_migration="no"
1068   ;;
1069   --enable-live-block-migration) live_block_migration="yes"
1070   ;;
1071   --disable-numa) numa="no"
1072   ;;
1073   --enable-numa) numa="yes"
1074   ;;
1075   --disable-replication) replication="no"
1076   ;;
1077   --enable-replication) replication="yes"
1078   ;;
1079   --disable-bochs) bochs="no"
1080   ;;
1081   --enable-bochs) bochs="yes"
1082   ;;
1083   --disable-cloop) cloop="no"
1084   ;;
1085   --enable-cloop) cloop="yes"
1086   ;;
1087   --disable-dmg) dmg="no"
1088   ;;
1089   --enable-dmg) dmg="yes"
1090   ;;
1091   --disable-qcow1) qcow1="no"
1092   ;;
1093   --enable-qcow1) qcow1="yes"
1094   ;;
1095   --disable-vdi) vdi="no"
1096   ;;
1097   --enable-vdi) vdi="yes"
1098   ;;
1099   --disable-vvfat) vvfat="no"
1100   ;;
1101   --enable-vvfat) vvfat="yes"
1102   ;;
1103   --disable-qed) qed="no"
1104   ;;
1105   --enable-qed) qed="yes"
1106   ;;
1107   --disable-parallels) parallels="no"
1108   ;;
1109   --enable-parallels) parallels="yes"
1110   ;;
1111   --disable-vhost-user) vhost_user="no"
1112   ;;
1113   --enable-vhost-user) vhost_user="yes"
1114   ;;
1115   --disable-vhost-vdpa) vhost_vdpa="no"
1116   ;;
1117   --enable-vhost-vdpa) vhost_vdpa="yes"
1118   ;;
1119   --disable-vhost-kernel) vhost_kernel="no"
1120   ;;
1121   --enable-vhost-kernel) vhost_kernel="yes"
1122   ;;
1123   --disable-capstone) capstone="disabled"
1124   ;;
1125   --enable-capstone) capstone="enabled"
1126   ;;
1127   --enable-capstone=git) capstone="internal"
1128   ;;
1129   --enable-capstone=*) capstone="$optarg"
1130   ;;
1131   --with-git=*) git="$optarg"
1132   ;;
1133   --with-git-submodules=*)
1134       git_submodules_action="$optarg"
1135   ;;
1136   --enable-debug-mutex) debug_mutex=yes
1137   ;;
1138   --disable-debug-mutex) debug_mutex=no
1139   ;;
1140   --enable-plugins) if test "$mingw32" = "yes"; then
1141                         error_exit "TCG plugins not currently supported on Windows platforms"
1142                     else
1143                         plugins="yes"
1144                     fi
1145   ;;
1146   --disable-plugins) plugins="no"
1147   ;;
1148   --enable-containers) use_containers="yes"
1149   ;;
1150   --disable-containers) use_containers="no"
1151   ;;
1152   --gdb=*) gdb_bin="$optarg"
1153   ;;
1154   --enable-rng-none) rng_none=yes
1155   ;;
1156   --disable-rng-none) rng_none=no
1157   ;;
1158   --enable-keyring) secret_keyring="yes"
1159   ;;
1160   --disable-keyring) secret_keyring="no"
1161   ;;
1162   --enable-gio) gio=yes
1163   ;;
1164   --disable-gio) gio=no
1165   ;;
1166   --enable-slirp-smbd) slirp_smbd=yes
1167   ;;
1168   --disable-slirp-smbd) slirp_smbd=no
1169   ;;
1170   # backwards compatibility options
1171   --enable-trace-backend=*) meson_option_parse "--enable-trace-backends=$optarg" "$optarg"
1172   ;;
1173   --disable-blobs) meson_option_parse --disable-install-blobs ""
1174   ;;
1175   --enable-tcmalloc) meson_option_parse --enable-malloc=tcmalloc tcmalloc
1176   ;;
1177   --enable-jemalloc) meson_option_parse --enable-malloc=jemalloc jemalloc
1178   ;;
1179   # everything else has the same name in configure and meson
1180   --enable-* | --disable-*) meson_option_parse "$opt" "$optarg"
1181   ;;
1182   *)
1183       echo "ERROR: unknown option $opt"
1184       echo "Try '$0 --help' for more information"
1185       exit 1
1186   ;;
1187   esac
1188 done
1189
1190 # test for any invalid configuration combinations
1191 if test "$plugins" = "yes" -a "$tcg" = "disabled"; then
1192     error_exit "Can't enable plugins on non-TCG builds"
1193 fi
1194
1195 case $git_submodules_action in
1196     update|validate)
1197         if test ! -e "$source_path/.git"; then
1198             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1199             exit 1
1200         fi
1201     ;;
1202     ignore)
1203         if ! test -f "$source_path/ui/keycodemapdb/README"
1204         then
1205             echo
1206             echo "ERROR: missing GIT submodules"
1207             echo
1208             if test -e "$source_path/.git"; then
1209                 echo "--with-git-submodules=ignore specified but submodules were not"
1210                 echo "checked out.  Please initialize and update submodules."
1211             else
1212                 echo "This is not a GIT checkout but module content appears to"
1213                 echo "be missing. Do not use 'git archive' or GitHub download links"
1214                 echo "to acquire QEMU source archives. Non-GIT builds are only"
1215                 echo "supported with source archives linked from:"
1216                 echo
1217                 echo "  https://www.qemu.org/download/#source"
1218                 echo
1219                 echo "Developers working with GIT can use scripts/archive-source.sh"
1220                 echo "if they need to create valid source archives."
1221             fi
1222             echo
1223             exit 1
1224         fi
1225     ;;
1226     *)
1227         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1228         exit 1
1229     ;;
1230 esac
1231
1232 libdir="${libdir:-$prefix/lib}"
1233 libexecdir="${libexecdir:-$prefix/libexec}"
1234 includedir="${includedir:-$prefix/include}"
1235
1236 if test "$mingw32" = "yes" ; then
1237     bindir="${bindir:-$prefix}"
1238 else
1239     bindir="${bindir:-$prefix/bin}"
1240 fi
1241 mandir="${mandir:-$prefix/share/man}"
1242 datadir="${datadir:-$prefix/share}"
1243 docdir="${docdir:-$prefix/share/doc}"
1244 sysconfdir="${sysconfdir:-$prefix/etc}"
1245 local_statedir="${local_statedir:-$prefix/var}"
1246 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1247 localedir="${localedir:-$datadir/locale}"
1248
1249 if eval test -z "\${cross_cc_$cpu}"; then
1250     eval "cross_cc_${cpu}=\$cc"
1251     cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1252 fi
1253
1254 default_target_list=""
1255 deprecated_targets_list=ppc64abi32-linux-user
1256 deprecated_features=""
1257 mak_wilds=""
1258
1259 if [ "$linux_user" != no ]; then
1260     if [ "$targetos" = linux ] && [ -d $source_path/linux-user/include/host/$cpu ]; then
1261         linux_user=yes
1262     elif [ "$linux_user" = yes ]; then
1263         error_exit "linux-user not supported on this architecture"
1264     fi
1265 fi
1266 if [ "$bsd_user" != no ]; then
1267     if [ "$bsd_user" = "" ]; then
1268         test $targetos = freebsd && bsd_user=yes
1269     fi
1270     if [ "$bsd_user" = yes ] && ! [ -d $source_path/bsd-user/$targetos ]; then
1271         error_exit "bsd-user not supported on this host OS"
1272     fi
1273 fi
1274 if [ "$softmmu" = "yes" ]; then
1275     mak_wilds="${mak_wilds} $source_path/configs/targets/*-softmmu.mak"
1276 fi
1277 if [ "$linux_user" = "yes" ]; then
1278     mak_wilds="${mak_wilds} $source_path/configs/targets/*-linux-user.mak"
1279 fi
1280 if [ "$bsd_user" = "yes" ]; then
1281     mak_wilds="${mak_wilds} $source_path/configs/targets/*-bsd-user.mak"
1282 fi
1283
1284 # If the user doesn't explicitly specify a deprecated target we will
1285 # skip it.
1286 if test -z "$target_list"; then
1287     if test -z "$target_list_exclude"; then
1288         target_list_exclude="$deprecated_targets_list"
1289     else
1290         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1291     fi
1292 fi
1293
1294 for config in $mak_wilds; do
1295     target="$(basename "$config" .mak)"
1296     if echo "$target_list_exclude" | grep -vq "$target"; then
1297         default_target_list="${default_target_list} $target"
1298     fi
1299 done
1300
1301 if test x"$show_help" = x"yes" ; then
1302 cat << EOF
1303
1304 Usage: configure [options]
1305 Options: [defaults in brackets after descriptions]
1306
1307 Standard options:
1308   --help                   print this message
1309   --prefix=PREFIX          install in PREFIX [$prefix]
1310   --interp-prefix=PREFIX   where to find shared libraries, etc.
1311                            use %M for cpu name [$interp_prefix]
1312   --target-list=LIST       set target list (default: build all non-deprecated)
1313 $(echo Available targets: $default_target_list | \
1314   fold -s -w 53 | sed -e 's/^/                           /')
1315 $(echo Deprecated targets: $deprecated_targets_list | \
1316   fold -s -w 53 | sed -e 's/^/                           /')
1317   --target-list-exclude=LIST exclude a set of targets from the default target-list
1318
1319 Advanced options (experts only):
1320   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1321   --cc=CC                  use C compiler CC [$cc]
1322   --iasl=IASL              use ACPI compiler IASL [$iasl]
1323   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1324                            build time
1325   --cxx=CXX                use C++ compiler CXX [$cxx]
1326   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1327   --extra-cflags=CFLAGS    append extra C compiler flags CFLAGS
1328   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags CXXFLAGS
1329   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1330   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1331   --cross-cc-cflags-ARCH=  use compiler flags when building ARCH guest tests
1332   --make=MAKE              use specified make [$make]
1333   --python=PYTHON          use specified python [$python]
1334   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1335   --meson=MESON            use specified meson [$meson]
1336   --ninja=NINJA            use specified ninja [$ninja]
1337   --smbd=SMBD              use specified smbd [$smbd]
1338   --with-git=GIT           use specified git [$git]
1339   --with-git-submodules=update   update git submodules (default if .git dir exists)
1340   --with-git-submodules=validate fail if git submodules are not up to date
1341   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1342   --static                 enable static build [$static]
1343   --mandir=PATH            install man pages in PATH
1344   --datadir=PATH           install firmware in PATH/$qemu_suffix
1345   --localedir=PATH         install translation in PATH/$qemu_suffix
1346   --docdir=PATH            install documentation in PATH/$qemu_suffix
1347   --bindir=PATH            install binaries in PATH
1348   --libdir=PATH            install libraries in PATH
1349   --libexecdir=PATH        install helper binaries in PATH
1350   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1351   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1352   --firmwarepath=PATH      search PATH for firmware files
1353   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1354   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1355   --with-pkgversion=VERS   use specified string as sub-version of the package
1356   --without-default-features default all --enable-* options to "disabled"
1357   --without-default-devices  do not include any device that is not needed to
1358                            start the emulator (only use if you are including
1359                            desired devices in configs/devices/)
1360   --with-devices-ARCH=NAME override default configs/devices
1361   --enable-debug           enable common debug build options
1362   --enable-sanitizers      enable default sanitizers
1363   --enable-tsan            enable thread sanitizer
1364   --disable-werror         disable compilation abort on warning
1365   --disable-stack-protector disable compiler-provided stack protection
1366   --audio-drv-list=LIST    set audio drivers to try if -audiodev is not used
1367   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1368   --block-drv-rw-whitelist=L
1369                            set block driver read-write whitelist
1370                            (by default affects only QEMU, not tools like qemu-img)
1371   --block-drv-ro-whitelist=L
1372                            set block driver read-only whitelist
1373                            (by default affects only QEMU, not tools like qemu-img)
1374   --enable-block-drv-whitelist-in-tools
1375                            use block whitelist also in tools instead of only QEMU
1376   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1377                            Default:trace-<pid>
1378   --cpu=CPU                Build for host CPU [$cpu]
1379   --with-coroutine=BACKEND coroutine backend. Supported options:
1380                            ucontext, sigaltstack, windows
1381   --enable-gcov            enable test coverage analysis with gcov
1382   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1383   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1384   --tls-priority           default TLS protocol/cipher priority string
1385   --enable-gprof           QEMU profiling with gprof
1386   --enable-profiler        profiler support
1387   --enable-debug-stack-usage
1388                            track the maximum stack usage of stacks created by qemu_alloc_stack
1389   --enable-plugins
1390                            enable plugins via shared library loading
1391   --disable-containers     don't use containers for cross-building
1392   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1393 EOF
1394   meson_options_help
1395 cat << EOF
1396   system          all system emulation targets
1397   user            supported user emulation targets
1398   linux-user      all linux usermode emulation targets
1399   bsd-user        all BSD usermode emulation targets
1400   guest-agent     build the QEMU Guest Agent
1401   pie             Position Independent Executables
1402   modules         modules support (non-Windows)
1403   module-upgrades try to load modules from alternate paths for upgrades
1404   debug-tcg       TCG debugging (default is disabled)
1405   debug-info      debugging information
1406   lto             Enable Link-Time Optimization.
1407   safe-stack      SafeStack Stack Smash Protection. Depends on
1408                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1409   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1410   rdma            Enable RDMA-based migration
1411   pvrdma          Enable PVRDMA support
1412   vhost-net       vhost-net kernel acceleration support
1413   vhost-vsock     virtio sockets device support
1414   vhost-scsi      vhost-scsi kernel target support
1415   vhost-crypto    vhost-user-crypto backend support
1416   vhost-kernel    vhost kernel backend support
1417   vhost-user      vhost-user backend support
1418   vhost-vdpa      vhost-vdpa kernel backend support
1419   live-block-migration   Block migration in the main migration stream
1420   coroutine-pool  coroutine freelist (better performance)
1421   tpm             TPM support
1422   numa            libnuma support
1423   avx2            AVX2 optimization support
1424   avx512f         AVX512F optimization support
1425   replication     replication support
1426   opengl          opengl support
1427   qom-cast-debug  cast debugging support
1428   tools           build qemu-io, qemu-nbd and qemu-img tools
1429   bochs           bochs image format support
1430   cloop           cloop image format support
1431   dmg             dmg image format support
1432   qcow1           qcow v1 image format support
1433   vdi             vdi image format support
1434   vvfat           vvfat image format support
1435   qed             qed image format support
1436   parallels       parallels image format support
1437   crypto-afalg    Linux AF_ALG crypto backend driver
1438   debug-mutex     mutex debugging support
1439   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1440   gio             libgio support
1441   slirp-smbd      use smbd (at path --smbd=*) in slirp networking
1442
1443 NOTE: The object files are built at the place where configure is launched
1444 EOF
1445 exit 0
1446 fi
1447
1448 # Remove old dependency files to make sure that they get properly regenerated
1449 rm -f */config-devices.mak.d
1450
1451 if test -z "$python"
1452 then
1453     error_exit "Python not found. Use --python=/path/to/python"
1454 fi
1455 if ! has "$make"
1456 then
1457     error_exit "GNU make ($make) not found"
1458 fi
1459
1460 # Note that if the Python conditional here evaluates True we will exit
1461 # with status 1 which is a shell 'false' value.
1462 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1463   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1464       "Use --python=/path/to/python to specify a supported Python."
1465 fi
1466
1467 # Preserve python version since some functionality is dependent on it
1468 python_version=$($python -c 'import sys; print("%d.%d.%d" % (sys.version_info[0], sys.version_info[1], sys.version_info[2]))' 2>/dev/null)
1469
1470 # Suppress writing compiled files
1471 python="$python -B"
1472
1473 if test -z "$meson"; then
1474     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.59.3; then
1475         meson=meson
1476     elif test $git_submodules_action != 'ignore' ; then
1477         meson=git
1478     elif test -e "${source_path}/meson/meson.py" ; then
1479         meson=internal
1480     else
1481         if test "$explicit_python" = yes; then
1482             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1483         else
1484             error_exit "Meson not found.  Use --meson=/path/to/meson"
1485         fi
1486     fi
1487 else
1488     # Meson uses its own Python interpreter to invoke other Python scripts,
1489     # but the user wants to use the one they specified with --python.
1490     #
1491     # We do not want to override the distro Python interpreter (and sometimes
1492     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1493     # just require --meson=git|internal together with --python.
1494     if test "$explicit_python" = yes; then
1495         case "$meson" in
1496             git | internal) ;;
1497             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1498         esac
1499     fi
1500 fi
1501
1502 if test "$meson" = git; then
1503     git_submodules="${git_submodules} meson"
1504 fi
1505
1506 case "$meson" in
1507     git | internal)
1508         meson="$python ${source_path}/meson/meson.py"
1509         ;;
1510     *) meson=$(command -v "$meson") ;;
1511 esac
1512
1513 # Probe for ninja
1514
1515 if test -z "$ninja"; then
1516     for c in ninja ninja-build samu; do
1517         if has $c; then
1518             ninja=$(command -v "$c")
1519             break
1520         fi
1521     done
1522     if test -z "$ninja"; then
1523       error_exit "Cannot find Ninja"
1524     fi
1525 fi
1526
1527 # Check that the C compiler works. Doing this here before testing
1528 # the host CPU ensures that we had a valid CC to autodetect the
1529 # $cpu var (and we should bail right here if that's not the case).
1530 # It also allows the help message to be printed without a CC.
1531 write_c_skeleton;
1532 if compile_object ; then
1533   : C compiler works ok
1534 else
1535     error_exit "\"$cc\" either does not exist or does not work"
1536 fi
1537 if ! compile_prog ; then
1538     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1539 fi
1540
1541 # Consult white-list to determine whether to enable werror
1542 # by default.  Only enable by default for git builds
1543 if test -z "$werror" ; then
1544     if test "$git_submodules_action" != "ignore" && \
1545         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1546         werror="yes"
1547     else
1548         werror="no"
1549     fi
1550 fi
1551
1552 if test "$targetos" = "bogus"; then
1553     # Now that we know that we're not printing the help and that
1554     # the compiler works (so the results of the check_defines we used
1555     # to identify the OS are reliable), if we didn't recognize the
1556     # host OS we should stop now.
1557     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1558 fi
1559
1560 # Check whether the compiler matches our minimum requirements:
1561 cat > $TMPC << EOF
1562 #if defined(__clang_major__) && defined(__clang_minor__)
1563 # ifdef __apple_build_version__
1564 #  if __clang_major__ < 10 || (__clang_major__ == 10 && __clang_minor__ < 0)
1565 #   error You need at least XCode Clang v10.0 to compile QEMU
1566 #  endif
1567 # else
1568 #  if __clang_major__ < 6 || (__clang_major__ == 6 && __clang_minor__ < 0)
1569 #   error You need at least Clang v6.0 to compile QEMU
1570 #  endif
1571 # endif
1572 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1573 # if __GNUC__ < 7 || (__GNUC__ == 7 && __GNUC_MINOR__ < 4)
1574 #  error You need at least GCC v7.4.0 to compile QEMU
1575 # endif
1576 #else
1577 # error You either need GCC or Clang to compiler QEMU
1578 #endif
1579 int main (void) { return 0; }
1580 EOF
1581 if ! compile_prog "" "" ; then
1582     error_exit "You need at least GCC v7.4 or Clang v6.0 (or XCode Clang v10.0)"
1583 fi
1584
1585 # Accumulate -Wfoo and -Wno-bar separately.
1586 # We will list all of the enable flags first, and the disable flags second.
1587 # Note that we do not add -Werror, because that would enable it for all
1588 # configure tests. If a configure test failed due to -Werror this would
1589 # just silently disable some features, so it's too error prone.
1590
1591 warn_flags=
1592 add_to warn_flags -Wold-style-declaration
1593 add_to warn_flags -Wold-style-definition
1594 add_to warn_flags -Wtype-limits
1595 add_to warn_flags -Wformat-security
1596 add_to warn_flags -Wformat-y2k
1597 add_to warn_flags -Winit-self
1598 add_to warn_flags -Wignored-qualifiers
1599 add_to warn_flags -Wempty-body
1600 add_to warn_flags -Wnested-externs
1601 add_to warn_flags -Wendif-labels
1602 add_to warn_flags -Wexpansion-to-defined
1603 add_to warn_flags -Wimplicit-fallthrough=2
1604
1605 nowarn_flags=
1606 add_to nowarn_flags -Wno-initializer-overrides
1607 add_to nowarn_flags -Wno-missing-include-dirs
1608 add_to nowarn_flags -Wno-shift-negative-value
1609 add_to nowarn_flags -Wno-string-plus-int
1610 add_to nowarn_flags -Wno-typedef-redefinition
1611 add_to nowarn_flags -Wno-tautological-type-limit-compare
1612 add_to nowarn_flags -Wno-psabi
1613
1614 gcc_flags="$warn_flags $nowarn_flags"
1615
1616 cc_has_warning_flag() {
1617     write_c_skeleton;
1618
1619     # Use the positive sense of the flag when testing for -Wno-wombat
1620     # support (gcc will happily accept the -Wno- form of unknown
1621     # warning options).
1622     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1623     compile_prog "-Werror $optflag" ""
1624 }
1625
1626 for flag in $gcc_flags; do
1627     if cc_has_warning_flag $flag ; then
1628         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1629     fi
1630 done
1631
1632 if test "$stack_protector" != "no"; then
1633   cat > $TMPC << EOF
1634 int main(int argc, char *argv[])
1635 {
1636     char arr[64], *p = arr, *c = argv[0];
1637     while (*c) {
1638         *p++ = *c++;
1639     }
1640     return 0;
1641 }
1642 EOF
1643   gcc_flags="-fstack-protector-strong -fstack-protector-all"
1644   sp_on=0
1645   for flag in $gcc_flags; do
1646     # We need to check both a compile and a link, since some compiler
1647     # setups fail only on a .c->.o compile and some only at link time
1648     if compile_object "-Werror $flag" &&
1649        compile_prog "-Werror $flag" ""; then
1650       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1651       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
1652       sp_on=1
1653       break
1654     fi
1655   done
1656   if test "$stack_protector" = yes; then
1657     if test $sp_on = 0; then
1658       error_exit "Stack protector not supported"
1659     fi
1660   fi
1661 fi
1662
1663 # Disable -Wmissing-braces on older compilers that warn even for
1664 # the "universal" C zero initializer {0}.
1665 cat > $TMPC << EOF
1666 struct {
1667   int a[2];
1668 } x = {0};
1669 EOF
1670 if compile_object "-Werror" "" ; then
1671   :
1672 else
1673   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
1674 fi
1675
1676 # Our module code doesn't support Windows
1677 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
1678   error_exit "Modules are not available for Windows"
1679 fi
1680
1681 # module_upgrades is only reasonable if modules are enabled
1682 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
1683   error_exit "Can't enable module-upgrades as Modules are not enabled"
1684 fi
1685
1686 # Static linking is not possible with plugins, modules or PIE
1687 if test "$static" = "yes" ; then
1688   if test "$modules" = "yes" ; then
1689     error_exit "static and modules are mutually incompatible"
1690   fi
1691   if test "$plugins" = "yes"; then
1692     error_exit "static and plugins are mutually incompatible"
1693   else
1694     plugins="no"
1695   fi
1696 fi
1697 test "$plugins" = "" && plugins=yes
1698
1699 cat > $TMPC << EOF
1700
1701 #ifdef __linux__
1702 #  define THREAD __thread
1703 #else
1704 #  define THREAD
1705 #endif
1706 static THREAD int tls_var;
1707 int main(void) { return tls_var; }
1708 EOF
1709
1710 # Check we support -fno-pie and -no-pie first; we will need the former for
1711 # building ROMs, and both for everything if --disable-pie is passed.
1712 if compile_prog "-Werror -fno-pie" "-no-pie"; then
1713   CFLAGS_NOPIE="-fno-pie"
1714   LDFLAGS_NOPIE="-no-pie"
1715 fi
1716
1717 if test "$static" = "yes"; then
1718   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
1719     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1720     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
1721     pie="yes"
1722   elif test "$pie" = "yes"; then
1723     error_exit "-static-pie not available due to missing toolchain support"
1724   else
1725     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
1726     pie="no"
1727   fi
1728 elif test "$pie" = "no"; then
1729   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
1730   CONFIGURE_LDFLAGS="$LDFLAGS_NOPIE $CONFIGURE_LDFLAGS"
1731 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
1732   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
1733   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
1734   pie="yes"
1735 elif test "$pie" = "yes"; then
1736   error_exit "PIE not available due to missing toolchain support"
1737 else
1738   echo "Disabling PIE due to missing toolchain support"
1739   pie="no"
1740 fi
1741
1742 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
1743 # The combination is known as "full relro", because .got.plt is read-only too.
1744 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1745   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
1746 fi
1747
1748 ##########################################
1749 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1750 # use i686 as default anyway, but for those that don't, an explicit
1751 # specification is necessary
1752
1753 if test "$cpu" = "i386"; then
1754   cat > $TMPC << EOF
1755 static int sfaa(int *ptr)
1756 {
1757   return __sync_fetch_and_and(ptr, 0);
1758 }
1759
1760 int main(void)
1761 {
1762   int val = 42;
1763   val = __sync_val_compare_and_swap(&val, 0, 1);
1764   sfaa(&val);
1765   return val;
1766 }
1767 EOF
1768   if ! compile_prog "" "" ; then
1769     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1770   fi
1771 fi
1772
1773 if test "$tcg" = "enabled"; then
1774     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
1775     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
1776 fi
1777
1778 if test -z "${target_list+xxx}" ; then
1779     default_targets=yes
1780     for target in $default_target_list; do
1781         target_list="$target_list $target"
1782     done
1783     target_list="${target_list# }"
1784 else
1785     default_targets=no
1786     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
1787     for target in $target_list; do
1788         # Check that we recognised the target name; this allows a more
1789         # friendly error message than if we let it fall through.
1790         case " $default_target_list " in
1791             *" $target "*)
1792                 ;;
1793             *)
1794                 error_exit "Unknown target name '$target'"
1795                 ;;
1796         esac
1797     done
1798 fi
1799
1800 for target in $target_list; do
1801     # if a deprecated target is enabled we note it here
1802     if echo "$deprecated_targets_list" | grep -q "$target"; then
1803         add_to deprecated_features $target
1804     fi
1805 done
1806
1807 # see if system emulation was really requested
1808 case " $target_list " in
1809   *"-softmmu "*) softmmu=yes
1810   ;;
1811   *) softmmu=no
1812   ;;
1813 esac
1814
1815 feature_not_found() {
1816   feature=$1
1817   remedy=$2
1818
1819   error_exit "User requested feature $feature" \
1820       "configure was not able to find it." \
1821       "$remedy"
1822 }
1823
1824 # ---
1825 # big/little endian test
1826 cat > $TMPC << EOF
1827 #include <stdio.h>
1828 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1829 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1830 int main(int argc, char *argv[])
1831 {
1832     return printf("%s %s\n", (char *)big_endian, (char *)little_endian);
1833 }
1834 EOF
1835
1836 if compile_prog ; then
1837     if strings -a $TMPE | grep -q BiGeNdIaN ; then
1838         bigendian="yes"
1839     elif strings -a $TMPE | grep -q LiTtLeEnDiAn ; then
1840         bigendian="no"
1841     else
1842         echo big/little test failed
1843         exit 1
1844     fi
1845 else
1846     echo big/little test failed
1847     exit 1
1848 fi
1849
1850 ##########################################
1851 # system tools
1852 if test -z "$want_tools"; then
1853     if test "$softmmu" = "no"; then
1854         want_tools=no
1855     else
1856         want_tools=yes
1857     fi
1858 fi
1859
1860 #########################################
1861 # vhost interdependencies and host support
1862
1863 # vhost backends
1864 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
1865   error_exit "vhost-user is only available on Linux"
1866 fi
1867 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
1868 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
1869   error_exit "vhost-vdpa is only available on Linux"
1870 fi
1871 test "$vhost_kernel" = "" && vhost_kernel=$linux
1872 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
1873   error_exit "vhost-kernel is only available on Linux"
1874 fi
1875
1876 # vhost-kernel devices
1877 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
1878 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
1879   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
1880 fi
1881 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
1882 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
1883   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
1884 fi
1885
1886 # vhost-user backends
1887 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
1888 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
1889   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
1890 fi
1891 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
1892 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
1893   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
1894 fi
1895 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
1896 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
1897   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
1898 fi
1899 #vhost-vdpa backends
1900 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
1901 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
1902   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
1903 fi
1904
1905 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
1906 if test "$vhost_net" = ""; then
1907   test "$vhost_net_user" = "yes" && vhost_net=yes
1908   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
1909   test "$vhost_kernel" = "yes" && vhost_net=yes
1910 fi
1911
1912 ##########################################
1913 # pkg-config probe
1914
1915 if ! has "$pkg_config_exe"; then
1916   error_exit "pkg-config binary '$pkg_config_exe' not found"
1917 fi
1918
1919 ##########################################
1920 # xen probe
1921
1922 if test "$xen" != "disabled" ; then
1923   # Check whether Xen library path is specified via --extra-ldflags to avoid
1924   # overriding this setting with pkg-config output. If not, try pkg-config
1925   # to obtain all needed flags.
1926
1927   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
1928      $pkg_config --exists xencontrol ; then
1929     xen_ctrl_version="$(printf '%d%02d%02d' \
1930       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
1931     xen=enabled
1932     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
1933     xen_pc="$xen_pc xenevtchn xendevicemodel"
1934     if $pkg_config --exists xentoolcore; then
1935       xen_pc="$xen_pc xentoolcore"
1936     fi
1937     xen_cflags="$($pkg_config --cflags $xen_pc)"
1938     xen_libs="$($pkg_config --libs $xen_pc)"
1939   else
1940
1941     xen_libs="-lxenstore -lxenctrl"
1942     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
1943
1944     # First we test whether Xen headers and libraries are available.
1945     # If no, we are done and there is no Xen support.
1946     # If yes, more tests are run to detect the Xen version.
1947
1948     # Xen (any)
1949     cat > $TMPC <<EOF
1950 #include <xenctrl.h>
1951 int main(void) {
1952   return 0;
1953 }
1954 EOF
1955     if ! compile_prog "" "$xen_libs" ; then
1956       # Xen not found
1957       if test "$xen" = "enabled" ; then
1958         feature_not_found "xen" "Install xen devel"
1959       fi
1960       xen=disabled
1961
1962     # Xen unstable
1963     elif
1964         cat > $TMPC <<EOF &&
1965 #undef XC_WANT_COMPAT_DEVICEMODEL_API
1966 #define __XEN_TOOLS__
1967 #include <xendevicemodel.h>
1968 #include <xenforeignmemory.h>
1969 int main(void) {
1970   xendevicemodel_handle *xd;
1971   xenforeignmemory_handle *xfmem;
1972
1973   xd = xendevicemodel_open(0, 0);
1974   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
1975
1976   xfmem = xenforeignmemory_open(0, 0);
1977   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
1978
1979   return 0;
1980 }
1981 EOF
1982         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
1983       then
1984       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
1985       xen_ctrl_version=41100
1986       xen=enabled
1987     elif
1988         cat > $TMPC <<EOF &&
1989 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
1990 #include <xenforeignmemory.h>
1991 #include <xentoolcore.h>
1992 int main(void) {
1993   xenforeignmemory_handle *xfmem;
1994
1995   xfmem = xenforeignmemory_open(0, 0);
1996   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
1997   xentoolcore_restrict_all(0);
1998
1999   return 0;
2000 }
2001 EOF
2002         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2003       then
2004       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2005       xen_ctrl_version=41000
2006       xen=enabled
2007     elif
2008         cat > $TMPC <<EOF &&
2009 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2010 #define __XEN_TOOLS__
2011 #include <xendevicemodel.h>
2012 int main(void) {
2013   xendevicemodel_handle *xd;
2014
2015   xd = xendevicemodel_open(0, 0);
2016   xendevicemodel_close(xd);
2017
2018   return 0;
2019 }
2020 EOF
2021         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2022       then
2023       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2024       xen_ctrl_version=40900
2025       xen=enabled
2026     elif
2027         cat > $TMPC <<EOF &&
2028 /*
2029  * If we have stable libs the we don't want the libxc compat
2030  * layers, regardless of what CFLAGS we may have been given.
2031  *
2032  * Also, check if xengnttab_grant_copy_segment_t is defined and
2033  * grant copy operation is implemented.
2034  */
2035 #undef XC_WANT_COMPAT_EVTCHN_API
2036 #undef XC_WANT_COMPAT_GNTTAB_API
2037 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2038 #include <xenctrl.h>
2039 #include <xenstore.h>
2040 #include <xenevtchn.h>
2041 #include <xengnttab.h>
2042 #include <xenforeignmemory.h>
2043 #include <stdint.h>
2044 #include <xen/hvm/hvm_info_table.h>
2045 #if !defined(HVM_MAX_VCPUS)
2046 # error HVM_MAX_VCPUS not defined
2047 #endif
2048 int main(void) {
2049   xc_interface *xc = NULL;
2050   xenforeignmemory_handle *xfmem;
2051   xenevtchn_handle *xe;
2052   xengnttab_handle *xg;
2053   xengnttab_grant_copy_segment_t* seg = NULL;
2054
2055   xs_daemon_open();
2056
2057   xc = xc_interface_open(0, 0, 0);
2058   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2059   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2060   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2061   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2062
2063   xfmem = xenforeignmemory_open(0, 0);
2064   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2065
2066   xe = xenevtchn_open(0, 0);
2067   xenevtchn_fd(xe);
2068
2069   xg = xengnttab_open(0, 0);
2070   xengnttab_grant_copy(xg, 0, seg);
2071
2072   return 0;
2073 }
2074 EOF
2075         compile_prog "" "$xen_libs $xen_stable_libs"
2076       then
2077       xen_ctrl_version=40800
2078       xen=enabled
2079     elif
2080         cat > $TMPC <<EOF &&
2081 /*
2082  * If we have stable libs the we don't want the libxc compat
2083  * layers, regardless of what CFLAGS we may have been given.
2084  */
2085 #undef XC_WANT_COMPAT_EVTCHN_API
2086 #undef XC_WANT_COMPAT_GNTTAB_API
2087 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2088 #include <xenctrl.h>
2089 #include <xenstore.h>
2090 #include <xenevtchn.h>
2091 #include <xengnttab.h>
2092 #include <xenforeignmemory.h>
2093 #include <stdint.h>
2094 #include <xen/hvm/hvm_info_table.h>
2095 #if !defined(HVM_MAX_VCPUS)
2096 # error HVM_MAX_VCPUS not defined
2097 #endif
2098 int main(void) {
2099   xc_interface *xc = NULL;
2100   xenforeignmemory_handle *xfmem;
2101   xenevtchn_handle *xe;
2102   xengnttab_handle *xg;
2103
2104   xs_daemon_open();
2105
2106   xc = xc_interface_open(0, 0, 0);
2107   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2108   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2109   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2110   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2111
2112   xfmem = xenforeignmemory_open(0, 0);
2113   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2114
2115   xe = xenevtchn_open(0, 0);
2116   xenevtchn_fd(xe);
2117
2118   xg = xengnttab_open(0, 0);
2119   xengnttab_map_grant_ref(xg, 0, 0, 0);
2120
2121   return 0;
2122 }
2123 EOF
2124         compile_prog "" "$xen_libs $xen_stable_libs"
2125       then
2126       xen_ctrl_version=40701
2127       xen=enabled
2128
2129     # Xen 4.6
2130     elif
2131         cat > $TMPC <<EOF &&
2132 #include <xenctrl.h>
2133 #include <xenstore.h>
2134 #include <stdint.h>
2135 #include <xen/hvm/hvm_info_table.h>
2136 #if !defined(HVM_MAX_VCPUS)
2137 # error HVM_MAX_VCPUS not defined
2138 #endif
2139 int main(void) {
2140   xc_interface *xc;
2141   xs_daemon_open();
2142   xc = xc_interface_open(0, 0, 0);
2143   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2144   xc_gnttab_open(NULL, 0);
2145   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2146   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2147   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2148   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2149   return 0;
2150 }
2151 EOF
2152         compile_prog "" "$xen_libs"
2153       then
2154       xen_ctrl_version=40600
2155       xen=enabled
2156
2157     # Xen 4.5
2158     elif
2159         cat > $TMPC <<EOF &&
2160 #include <xenctrl.h>
2161 #include <xenstore.h>
2162 #include <stdint.h>
2163 #include <xen/hvm/hvm_info_table.h>
2164 #if !defined(HVM_MAX_VCPUS)
2165 # error HVM_MAX_VCPUS not defined
2166 #endif
2167 int main(void) {
2168   xc_interface *xc;
2169   xs_daemon_open();
2170   xc = xc_interface_open(0, 0, 0);
2171   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2172   xc_gnttab_open(NULL, 0);
2173   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2174   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2175   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2176   return 0;
2177 }
2178 EOF
2179         compile_prog "" "$xen_libs"
2180       then
2181       xen_ctrl_version=40500
2182       xen=enabled
2183
2184     elif
2185         cat > $TMPC <<EOF &&
2186 #include <xenctrl.h>
2187 #include <xenstore.h>
2188 #include <stdint.h>
2189 #include <xen/hvm/hvm_info_table.h>
2190 #if !defined(HVM_MAX_VCPUS)
2191 # error HVM_MAX_VCPUS not defined
2192 #endif
2193 int main(void) {
2194   xc_interface *xc;
2195   xs_daemon_open();
2196   xc = xc_interface_open(0, 0, 0);
2197   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2198   xc_gnttab_open(NULL, 0);
2199   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2200   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2201   return 0;
2202 }
2203 EOF
2204         compile_prog "" "$xen_libs"
2205       then
2206       xen_ctrl_version=40200
2207       xen=enabled
2208
2209     else
2210       if test "$xen" = "enabled" ; then
2211         feature_not_found "xen (unsupported version)" \
2212                           "Install a supported xen (xen 4.2 or newer)"
2213       fi
2214       xen=disabled
2215     fi
2216
2217     if test "$xen" = enabled; then
2218       if test $xen_ctrl_version -ge 40701  ; then
2219         xen_libs="$xen_libs $xen_stable_libs "
2220       fi
2221     fi
2222   fi
2223 fi
2224
2225 ##########################################
2226 # RDMA needs OpenFabrics libraries
2227 if test "$rdma" != "no" ; then
2228   cat > $TMPC <<EOF
2229 #include <rdma/rdma_cma.h>
2230 int main(void) { return 0; }
2231 EOF
2232   rdma_libs="-lrdmacm -libverbs -libumad"
2233   if compile_prog "" "$rdma_libs" ; then
2234     rdma="yes"
2235   else
2236     if test "$rdma" = "yes" ; then
2237         error_exit \
2238             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2239             " Your options:" \
2240             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2241             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2242             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2243     fi
2244     rdma="no"
2245   fi
2246 fi
2247
2248 ##########################################
2249 # PVRDMA detection
2250
2251 cat > $TMPC <<EOF &&
2252 #include <sys/mman.h>
2253
2254 int
2255 main(void)
2256 {
2257     char buf = 0;
2258     void *addr = &buf;
2259     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
2260
2261     return 0;
2262 }
2263 EOF
2264
2265 if test "$rdma" = "yes" ; then
2266     case "$pvrdma" in
2267     "")
2268         if compile_prog "" ""; then
2269             pvrdma="yes"
2270         else
2271             pvrdma="no"
2272         fi
2273         ;;
2274     "yes")
2275         if ! compile_prog "" ""; then
2276             error_exit "PVRDMA is not supported since mremap is not implemented"
2277         fi
2278         pvrdma="yes"
2279         ;;
2280     "no")
2281         pvrdma="no"
2282         ;;
2283     esac
2284 else
2285     if test "$pvrdma" = "yes" ; then
2286         error_exit "PVRDMA requires rdma suppport"
2287     fi
2288     pvrdma="no"
2289 fi
2290
2291 # Let's see if enhanced reg_mr is supported
2292 if test "$pvrdma" = "yes" ; then
2293
2294 cat > $TMPC <<EOF &&
2295 #include <infiniband/verbs.h>
2296
2297 int
2298 main(void)
2299 {
2300     struct ibv_mr *mr;
2301     struct ibv_pd *pd = NULL;
2302     size_t length = 10;
2303     uint64_t iova = 0;
2304     int access = 0;
2305     void *addr = NULL;
2306
2307     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
2308
2309     ibv_dereg_mr(mr);
2310
2311     return 0;
2312 }
2313 EOF
2314     if ! compile_prog "" "-libverbs"; then
2315         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
2316     fi
2317 fi
2318
2319 ##########################################
2320 # glib support probe
2321
2322 glib_req_ver=2.56
2323 glib_modules=gthread-2.0
2324 if test "$modules" = yes; then
2325     glib_modules="$glib_modules gmodule-export-2.0"
2326 elif test "$plugins" = "yes"; then
2327     glib_modules="$glib_modules gmodule-no-export-2.0"
2328 fi
2329
2330 for i in $glib_modules; do
2331     if $pkg_config --atleast-version=$glib_req_ver $i; then
2332         glib_cflags=$($pkg_config --cflags $i)
2333         glib_libs=$($pkg_config --libs $i)
2334     else
2335         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2336     fi
2337 done
2338
2339 # This workaround is required due to a bug in pkg-config file for glib as it
2340 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
2341
2342 if test "$static" = yes && test "$mingw32" = yes; then
2343     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
2344 fi
2345
2346 if ! test "$gio" = "no"; then
2347     pass=no
2348     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
2349         gio_cflags=$($pkg_config --cflags gio-2.0)
2350         gio_libs=$($pkg_config --libs gio-2.0)
2351         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
2352         if ! has "$gdbus_codegen"; then
2353             gdbus_codegen=
2354         fi
2355         # Check that the libraries actually work -- Ubuntu 18.04 ships
2356         # with pkg-config --static --libs data for gio-2.0 that is missing
2357         # -lblkid and will give a link error.
2358         cat > $TMPC <<EOF
2359 #include <gio/gio.h>
2360 int main(void)
2361 {
2362     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
2363     return 0;
2364 }
2365 EOF
2366         if compile_prog "$gio_cflags" "$gio_libs" ; then
2367             pass=yes
2368         else
2369             pass=no
2370         fi
2371
2372         if test "$pass" = "yes" &&
2373             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
2374             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
2375             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
2376         fi
2377     fi
2378
2379     if test "$pass" = "no"; then
2380         if test "$gio" = "yes"; then
2381             feature_not_found "gio" "Install libgio >= 2.0"
2382         else
2383             gio=no
2384         fi
2385     else
2386         gio=yes
2387     fi
2388 fi
2389
2390 # Sanity check that the current size_t matches the
2391 # size that glib thinks it should be. This catches
2392 # problems on multi-arch where people try to build
2393 # 32-bit QEMU while pointing at 64-bit glib headers
2394 cat > $TMPC <<EOF
2395 #include <glib.h>
2396 #include <unistd.h>
2397
2398 #define QEMU_BUILD_BUG_ON(x) \
2399   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
2400
2401 int main(void) {
2402    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
2403    return 0;
2404 }
2405 EOF
2406
2407 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
2408     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
2409                "You probably need to set PKG_CONFIG_LIBDIR"\
2410                "to point to the right pkg-config files for your"\
2411                "build target"
2412 fi
2413
2414 # Silence clang warnings triggered by glib < 2.57.2
2415 cat > $TMPC << EOF
2416 #include <glib.h>
2417 typedef struct Foo {
2418     int i;
2419 } Foo;
2420 static void foo_free(Foo *f)
2421 {
2422     g_free(f);
2423 }
2424 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
2425 int main(void) { return 0; }
2426 EOF
2427 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2428     if cc_has_warning_flag "-Wno-unused-function"; then
2429         glib_cflags="$glib_cflags -Wno-unused-function"
2430         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
2431     fi
2432 fi
2433
2434 ##########################################
2435 # SHA command probe for modules
2436 if test "$modules" = yes; then
2437     shacmd_probe="sha1sum sha1 shasum"
2438     for c in $shacmd_probe; do
2439         if has $c; then
2440             shacmd="$c"
2441             break
2442         fi
2443     done
2444     if test "$shacmd" = ""; then
2445         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2446     fi
2447 fi
2448
2449 ##########################################
2450 # TPM emulation is only on POSIX
2451
2452 if test "$tpm" = ""; then
2453   if test "$mingw32" = "yes"; then
2454     tpm=no
2455   else
2456     tpm=yes
2457   fi
2458 elif test "$tpm" = "yes"; then
2459   if test "$mingw32" = "yes" ; then
2460     error_exit "TPM emulation only available on POSIX systems"
2461   fi
2462 fi
2463
2464 ##########################################
2465 # fdt probe
2466
2467 case "$fdt" in
2468   auto | enabled | internal)
2469     # Simpler to always update submodule, even if not needed.
2470     git_submodules="${git_submodules} dtc"
2471     ;;
2472 esac
2473
2474 ##########################################
2475 # opengl probe (for sdl2, gtk)
2476
2477 if test "$opengl" != "no" ; then
2478   epoxy=no
2479   if $pkg_config epoxy; then
2480     cat > $TMPC << EOF
2481 #include <epoxy/egl.h>
2482 int main(void) { return 0; }
2483 EOF
2484     if compile_prog "" "" ; then
2485       epoxy=yes
2486     fi
2487   fi
2488
2489   if test "$epoxy" = "yes" ; then
2490     opengl_cflags="$($pkg_config --cflags epoxy)"
2491     opengl_libs="$($pkg_config --libs epoxy)"
2492     opengl=yes
2493   else
2494     if test "$opengl" = "yes" ; then
2495       feature_not_found "opengl" "Please install epoxy with EGL"
2496     fi
2497     opengl_cflags=""
2498     opengl_libs=""
2499     opengl=no
2500   fi
2501 fi
2502
2503 ##########################################
2504 # libnuma probe
2505
2506 if test "$numa" != "no" ; then
2507   cat > $TMPC << EOF
2508 #include <numa.h>
2509 int main(void) { return numa_available(); }
2510 EOF
2511
2512   if compile_prog "" "-lnuma" ; then
2513     numa=yes
2514     numa_libs="-lnuma"
2515   else
2516     if test "$numa" = "yes" ; then
2517       feature_not_found "numa" "install numactl devel"
2518     fi
2519     numa=no
2520   fi
2521 fi
2522
2523 # check for usbfs
2524 have_usbfs=no
2525 if test "$linux_user" = "yes"; then
2526   cat > $TMPC << EOF
2527 #include <linux/usbdevice_fs.h>
2528
2529 #ifndef USBDEVFS_GET_CAPABILITIES
2530 #error "USBDEVFS_GET_CAPABILITIES undefined"
2531 #endif
2532
2533 #ifndef USBDEVFS_DISCONNECT_CLAIM
2534 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
2535 #endif
2536
2537 int main(void)
2538 {
2539     return 0;
2540 }
2541 EOF
2542   if compile_prog "" ""; then
2543     have_usbfs=yes
2544   fi
2545 fi
2546
2547 ##########################################
2548 # check if we have VSS SDK headers for win
2549
2550 guest_agent_with_vss="no"
2551 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
2552         test "$vss_win32_sdk" != "no" ; then
2553   case "$vss_win32_sdk" in
2554     "")   vss_win32_include="-isystem $source_path" ;;
2555     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
2556           # handle path with spaces. So we symlink the headers into ".sdk/vss".
2557           vss_win32_include="-isystem $source_path/.sdk/vss"
2558           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
2559           ;;
2560     *)    vss_win32_include="-isystem $vss_win32_sdk"
2561   esac
2562   cat > $TMPC << EOF
2563 #define __MIDL_user_allocate_free_DEFINED__
2564 #include <inc/win2003/vss.h>
2565 int main(void) { return VSS_CTX_BACKUP; }
2566 EOF
2567   if compile_prog "$vss_win32_include" "" ; then
2568     guest_agent_with_vss="yes"
2569     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
2570     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
2571     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
2572   else
2573     if test "$vss_win32_sdk" != "" ; then
2574       echo "ERROR: Please download and install Microsoft VSS SDK:"
2575       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
2576       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
2577       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
2578       echo "ERROR: The headers are extracted in the directory \`inc'."
2579       feature_not_found "VSS support"
2580     fi
2581   fi
2582 fi
2583
2584 ##########################################
2585 # lookup Windows platform SDK (if not specified)
2586 # The SDK is needed only to build .tlb (type library) file of guest agent
2587 # VSS provider from the source. It is usually unnecessary because the
2588 # pre-compiled .tlb file is included.
2589
2590 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
2591         test "$guest_agent_with_vss" = "yes" ; then
2592   if test -z "$win_sdk"; then
2593     programfiles="$PROGRAMFILES"
2594     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
2595     if test -n "$programfiles"; then
2596       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
2597     else
2598       feature_not_found "Windows SDK"
2599     fi
2600   elif test "$win_sdk" = "no"; then
2601     win_sdk=""
2602   fi
2603 fi
2604
2605 ##########################################
2606 # check if mingw environment provides a recent ntddscsi.h
2607 guest_agent_ntddscsi="no"
2608 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
2609   cat > $TMPC << EOF
2610 #include <windows.h>
2611 #include <ntddscsi.h>
2612 int main(void) {
2613 #if !defined(IOCTL_SCSI_GET_ADDRESS)
2614 #error Missing required ioctl definitions
2615 #endif
2616   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
2617   return addr.Lun;
2618 }
2619 EOF
2620   if compile_prog "" "" ; then
2621     guest_agent_ntddscsi=yes
2622     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
2623   fi
2624 fi
2625
2626 ##########################################
2627 # capstone
2628
2629 case "$capstone" in
2630   auto | enabled | internal)
2631     # Simpler to always update submodule, even if not needed.
2632     git_submodules="${git_submodules} capstone"
2633     ;;
2634 esac
2635
2636 ##########################################
2637 # check and set a backend for coroutine
2638
2639 # We prefer ucontext, but it's not always possible. The fallback
2640 # is sigcontext. On Windows the only valid backend is the Windows
2641 # specific one.
2642
2643 ucontext_works=no
2644 if test "$darwin" != "yes"; then
2645   cat > $TMPC << EOF
2646 #include <ucontext.h>
2647 #ifdef __stub_makecontext
2648 #error Ignoring glibc stub makecontext which will always fail
2649 #endif
2650 int main(void) { makecontext(0, 0, 0); return 0; }
2651 EOF
2652   if compile_prog "" "" ; then
2653     ucontext_works=yes
2654   fi
2655 fi
2656
2657 if test "$coroutine" = ""; then
2658   if test "$mingw32" = "yes"; then
2659     coroutine=win32
2660   elif test "$ucontext_works" = "yes"; then
2661     coroutine=ucontext
2662   else
2663     coroutine=sigaltstack
2664   fi
2665 else
2666   case $coroutine in
2667   windows)
2668     if test "$mingw32" != "yes"; then
2669       error_exit "'windows' coroutine backend only valid for Windows"
2670     fi
2671     # Unfortunately the user visible backend name doesn't match the
2672     # coroutine-*.c filename for this case, so we have to adjust it here.
2673     coroutine=win32
2674     ;;
2675   ucontext)
2676     if test "$ucontext_works" != "yes"; then
2677       feature_not_found "ucontext"
2678     fi
2679     ;;
2680   sigaltstack)
2681     if test "$mingw32" = "yes"; then
2682       error_exit "only the 'windows' coroutine backend is valid for Windows"
2683     fi
2684     ;;
2685   *)
2686     error_exit "unknown coroutine backend $coroutine"
2687     ;;
2688   esac
2689 fi
2690
2691 if test "$coroutine_pool" = ""; then
2692   coroutine_pool=yes
2693 fi
2694
2695 if test "$debug_stack_usage" = "yes"; then
2696   if test "$coroutine_pool" = "yes"; then
2697     echo "WARN: disabling coroutine pool for stack usage debugging"
2698     coroutine_pool=no
2699   fi
2700 fi
2701
2702 ##################################################
2703 # SafeStack
2704
2705
2706 if test "$safe_stack" = "yes"; then
2707 cat > $TMPC << EOF
2708 int main(int argc, char *argv[])
2709 {
2710 #if ! __has_feature(safe_stack)
2711 #error SafeStack Disabled
2712 #endif
2713     return 0;
2714 }
2715 EOF
2716   flag="-fsanitize=safe-stack"
2717   # Check that safe-stack is supported and enabled.
2718   if compile_prog "-Werror $flag" "$flag"; then
2719     # Flag needed both at compilation and at linking
2720     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2721     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2722   else
2723     error_exit "SafeStack not supported by your compiler"
2724   fi
2725   if test "$coroutine" != "ucontext"; then
2726     error_exit "SafeStack is only supported by the coroutine backend ucontext"
2727   fi
2728 else
2729 cat > $TMPC << EOF
2730 int main(int argc, char *argv[])
2731 {
2732 #if defined(__has_feature)
2733 #if __has_feature(safe_stack)
2734 #error SafeStack Enabled
2735 #endif
2736 #endif
2737     return 0;
2738 }
2739 EOF
2740 if test "$safe_stack" = "no"; then
2741   # Make sure that safe-stack is disabled
2742   if ! compile_prog "-Werror" ""; then
2743     # SafeStack was already enabled, try to explicitly remove the feature
2744     flag="-fno-sanitize=safe-stack"
2745     if ! compile_prog "-Werror $flag" "$flag"; then
2746       error_exit "Configure cannot disable SafeStack"
2747     fi
2748     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2749     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2750   fi
2751 else # "$safe_stack" = ""
2752   # Set safe_stack to yes or no based on pre-existing flags
2753   if compile_prog "-Werror" ""; then
2754     safe_stack="no"
2755   else
2756     safe_stack="yes"
2757     if test "$coroutine" != "ucontext"; then
2758       error_exit "SafeStack is only supported by the coroutine backend ucontext"
2759     fi
2760   fi
2761 fi
2762 fi
2763
2764 ########################################
2765 # check if cpuid.h is usable.
2766
2767 cat > $TMPC << EOF
2768 #include <cpuid.h>
2769 int main(void) {
2770     unsigned a, b, c, d;
2771     unsigned max = __get_cpuid_max(0, 0);
2772
2773     if (max >= 1) {
2774         __cpuid(1, a, b, c, d);
2775     }
2776
2777     if (max >= 7) {
2778         __cpuid_count(7, 0, a, b, c, d);
2779     }
2780
2781     return 0;
2782 }
2783 EOF
2784 if compile_prog "" "" ; then
2785     cpuid_h=yes
2786 fi
2787
2788 ##########################################
2789 # avx2 optimization requirement check
2790 #
2791 # There is no point enabling this if cpuid.h is not usable,
2792 # since we won't be able to select the new routines.
2793
2794 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
2795   cat > $TMPC << EOF
2796 #pragma GCC push_options
2797 #pragma GCC target("avx2")
2798 #include <cpuid.h>
2799 #include <immintrin.h>
2800 static int bar(void *a) {
2801     __m256i x = *(__m256i *)a;
2802     return _mm256_testz_si256(x, x);
2803 }
2804 int main(int argc, char *argv[]) { return bar(argv[0]); }
2805 EOF
2806   if compile_object "-Werror" ; then
2807     avx2_opt="yes"
2808   else
2809     avx2_opt="no"
2810   fi
2811 fi
2812
2813 ##########################################
2814 # avx512f optimization requirement check
2815 #
2816 # There is no point enabling this if cpuid.h is not usable,
2817 # since we won't be able to select the new routines.
2818 # by default, it is turned off.
2819 # if user explicitly want to enable it, check environment
2820
2821 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
2822   cat > $TMPC << EOF
2823 #pragma GCC push_options
2824 #pragma GCC target("avx512f")
2825 #include <cpuid.h>
2826 #include <immintrin.h>
2827 static int bar(void *a) {
2828     __m512i x = *(__m512i *)a;
2829     return _mm512_test_epi64_mask(x, x);
2830 }
2831 int main(int argc, char *argv[])
2832 {
2833         return bar(argv[0]);
2834 }
2835 EOF
2836   if ! compile_object "-Werror" ; then
2837     avx512f_opt="no"
2838   fi
2839 else
2840   avx512f_opt="no"
2841 fi
2842
2843 ########################################
2844 # check if __[u]int128_t is usable.
2845
2846 int128=no
2847 cat > $TMPC << EOF
2848 __int128_t a;
2849 __uint128_t b;
2850 int main (void) {
2851   a = a + b;
2852   b = a * b;
2853   a = a * a;
2854   return 0;
2855 }
2856 EOF
2857 if compile_prog "" "" ; then
2858     int128=yes
2859 fi
2860
2861 #########################################
2862 # See if 128-bit atomic operations are supported.
2863
2864 atomic128=no
2865 if test "$int128" = "yes"; then
2866   cat > $TMPC << EOF
2867 int main(void)
2868 {
2869   unsigned __int128 x = 0, y = 0;
2870   y = __atomic_load(&x, 0);
2871   __atomic_store(&x, y, 0);
2872   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
2873   return 0;
2874 }
2875 EOF
2876   if compile_prog "" "" ; then
2877     atomic128=yes
2878   fi
2879 fi
2880
2881 cmpxchg128=no
2882 if test "$int128" = yes && test "$atomic128" = no; then
2883   cat > $TMPC << EOF
2884 int main(void)
2885 {
2886   unsigned __int128 x = 0, y = 0;
2887   __sync_val_compare_and_swap_16(&x, y, x);
2888   return 0;
2889 }
2890 EOF
2891   if compile_prog "" "" ; then
2892     cmpxchg128=yes
2893   fi
2894 fi
2895
2896 ########################################
2897 # check if ccache is interfering with
2898 # semantic analysis of macros
2899
2900 unset CCACHE_CPP2
2901 ccache_cpp2=no
2902 cat > $TMPC << EOF
2903 static const int Z = 1;
2904 #define fn() ({ Z; })
2905 #define TAUT(X) ((X) == Z)
2906 #define PAREN(X, Y) (X == Y)
2907 #define ID(X) (X)
2908 int main(int argc, char *argv[])
2909 {
2910     int x = 0, y = 0;
2911     x = ID(x);
2912     x = fn();
2913     fn();
2914     if (PAREN(x, y)) return 0;
2915     if (TAUT(Z)) return 0;
2916     return 0;
2917 }
2918 EOF
2919
2920 if ! compile_object "-Werror"; then
2921     ccache_cpp2=yes
2922 fi
2923
2924 #################################################
2925 # clang does not support glibc + FORTIFY_SOURCE.
2926
2927 if test "$fortify_source" != "no"; then
2928   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
2929     fortify_source="no";
2930   elif test -n "$cxx" && has $cxx &&
2931        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
2932     fortify_source="no";
2933   else
2934     fortify_source="yes"
2935   fi
2936 fi
2937
2938 ##########################################
2939 # check for usable membarrier system call
2940 if test "$membarrier" = "yes"; then
2941     have_membarrier=no
2942     if test "$mingw32" = "yes" ; then
2943         have_membarrier=yes
2944     elif test "$linux" = "yes" ; then
2945         cat > $TMPC << EOF
2946     #include <linux/membarrier.h>
2947     #include <sys/syscall.h>
2948     #include <unistd.h>
2949     #include <stdlib.h>
2950     int main(void) {
2951         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
2952         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
2953         exit(0);
2954     }
2955 EOF
2956         if compile_prog "" "" ; then
2957             have_membarrier=yes
2958         fi
2959     fi
2960     if test "$have_membarrier" = "no"; then
2961       feature_not_found "membarrier" "membarrier system call not available"
2962     fi
2963 else
2964     # Do not enable it by default even for Mingw32, because it doesn't
2965     # work on Wine.
2966     membarrier=no
2967 fi
2968
2969 ##########################################
2970 # check for usable AF_ALG environment
2971 have_afalg=no
2972 cat > $TMPC << EOF
2973 #include <errno.h>
2974 #include <sys/types.h>
2975 #include <sys/socket.h>
2976 #include <linux/if_alg.h>
2977 int main(void) {
2978     int sock;
2979     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
2980     return sock;
2981 }
2982 EOF
2983 if compile_prog "" "" ; then
2984     have_afalg=yes
2985 fi
2986 if test "$crypto_afalg" = "yes"
2987 then
2988     if test "$have_afalg" != "yes"
2989     then
2990         error_exit "AF_ALG requested but could not be detected"
2991     fi
2992 fi
2993
2994
2995 ##########################################
2996 # checks for sanitizers
2997
2998 have_asan=no
2999 have_ubsan=no
3000 have_asan_iface_h=no
3001 have_asan_iface_fiber=no
3002
3003 if test "$sanitizers" = "yes" ; then
3004   write_c_skeleton
3005   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
3006       have_asan=yes
3007   fi
3008
3009   # we could use a simple skeleton for flags checks, but this also
3010   # detect the static linking issue of ubsan, see also:
3011   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
3012   cat > $TMPC << EOF
3013 #include <stdlib.h>
3014 int main(void) {
3015     void *tmp = malloc(10);
3016     if (tmp != NULL) {
3017         return *(int *)(tmp + 2);
3018     }
3019     return 1;
3020 }
3021 EOF
3022   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
3023       have_ubsan=yes
3024   fi
3025
3026   if check_include "sanitizer/asan_interface.h" ; then
3027       have_asan_iface_h=yes
3028   fi
3029
3030   cat > $TMPC << EOF
3031 #include <sanitizer/asan_interface.h>
3032 int main(void) {
3033   __sanitizer_start_switch_fiber(0, 0, 0);
3034   return 0;
3035 }
3036 EOF
3037   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
3038       have_asan_iface_fiber=yes
3039   fi
3040 fi
3041
3042 # Thread sanitizer is, for now, much noisier than the other sanitizers;
3043 # keep it separate until that is not the case.
3044 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
3045   error_exit "TSAN is not supported with other sanitiziers."
3046 fi
3047 have_tsan=no
3048 have_tsan_iface_fiber=no
3049 if test "$tsan" = "yes" ; then
3050   write_c_skeleton
3051   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
3052       have_tsan=yes
3053   fi
3054   cat > $TMPC << EOF
3055 #include <sanitizer/tsan_interface.h>
3056 int main(void) {
3057   __tsan_create_fiber(0);
3058   return 0;
3059 }
3060 EOF
3061   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
3062       have_tsan_iface_fiber=yes
3063   fi
3064 fi
3065
3066 ##########################################
3067 # check for slirp
3068
3069 case "$slirp" in
3070   auto | enabled | internal)
3071     # Simpler to always update submodule, even if not needed.
3072     git_submodules="${git_submodules} slirp"
3073     ;;
3074 esac
3075
3076 # Check for slirp smbd dupport
3077 : ${smbd=${SMBD-/usr/sbin/smbd}}
3078 if test "$slirp_smbd" != "no" ; then
3079   if test "$mingw32" = "yes" ; then
3080     if test "$slirp_smbd" = "yes" ; then
3081       error_exit "Host smbd not supported on this platform."
3082     fi
3083     slirp_smbd=no
3084   else
3085     slirp_smbd=yes
3086   fi
3087 fi
3088
3089 ##########################################
3090 # check for usable __NR_keyctl syscall
3091
3092 if test "$linux" = "yes" ; then
3093
3094     have_keyring=no
3095     cat > $TMPC << EOF
3096 #include <errno.h>
3097 #include <asm/unistd.h>
3098 #include <linux/keyctl.h>
3099 #include <unistd.h>
3100 int main(void) {
3101     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
3102 }
3103 EOF
3104     if compile_prog "" "" ; then
3105         have_keyring=yes
3106     fi
3107 fi
3108 if test "$secret_keyring" != "no"
3109 then
3110     if test "$have_keyring" = "yes"
3111     then
3112         secret_keyring=yes
3113     else
3114         if test "$secret_keyring" = "yes"
3115         then
3116             error_exit "syscall __NR_keyctl requested, \
3117 but not implemented on your system"
3118         else
3119             secret_keyring=no
3120         fi
3121     fi
3122 fi
3123
3124 ##########################################
3125 # End of CC checks
3126 # After here, no more $cc or $ld runs
3127
3128 write_c_skeleton
3129
3130 if test "$gcov" = "yes" ; then
3131   :
3132 elif test "$fortify_source" = "yes" ; then
3133   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
3134   debug=no
3135 fi
3136
3137 case "$ARCH" in
3138 alpha)
3139   # Ensure there's only a single GP
3140   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
3141 ;;
3142 esac
3143
3144 if test "$gprof" = "yes" ; then
3145   QEMU_CFLAGS="-p $QEMU_CFLAGS"
3146   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
3147 fi
3148
3149 if test "$have_asan" = "yes"; then
3150   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
3151   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
3152   if test "$have_asan_iface_h" = "no" ; then
3153       echo "ASAN build enabled, but ASAN header missing." \
3154            "Without code annotation, the report may be inferior."
3155   elif test "$have_asan_iface_fiber" = "no" ; then
3156       echo "ASAN build enabled, but ASAN header is too old." \
3157            "Without code annotation, the report may be inferior."
3158   fi
3159 fi
3160 if test "$have_tsan" = "yes" ; then
3161   if test "$have_tsan_iface_fiber" = "yes" ; then
3162     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
3163     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
3164   else
3165     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
3166   fi
3167 elif test "$tsan" = "yes" ; then
3168   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
3169 fi
3170 if test "$have_ubsan" = "yes"; then
3171   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
3172   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
3173 fi
3174
3175 ##########################################
3176
3177 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
3178 if test "$solaris" = "no" && test "$tsan" = "no"; then
3179     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
3180         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
3181     fi
3182 fi
3183
3184 # Use ASLR, no-SEH and DEP if available
3185 if test "$mingw32" = "yes" ; then
3186     flags="--no-seh --nxcompat"
3187
3188     # Disable ASLR for debug builds to allow debugging with gdb
3189     if test "$debug" = "no" ; then
3190         flags="--dynamicbase $flags"
3191     fi
3192
3193     for flag in $flags; do
3194         if ld_has $flag ; then
3195             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
3196         fi
3197     done
3198 fi
3199
3200 # Probe for guest agent support/options
3201
3202 if [ "$guest_agent" != "no" ]; then
3203   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
3204       guest_agent=no
3205   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
3206       guest_agent=yes
3207   elif [ "$guest_agent" != yes ]; then
3208       guest_agent=no
3209   else
3210       error_exit "Guest agent is not supported on this platform"
3211   fi
3212 fi
3213
3214 # Guest agent Windows MSI package
3215
3216 if test "$QEMU_GA_MANUFACTURER" = ""; then
3217   QEMU_GA_MANUFACTURER=QEMU
3218 fi
3219 if test "$QEMU_GA_DISTRO" = ""; then
3220   QEMU_GA_DISTRO=Linux
3221 fi
3222 if test "$QEMU_GA_VERSION" = ""; then
3223     QEMU_GA_VERSION=$(cat $source_path/VERSION)
3224 fi
3225
3226 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
3227
3228 # Mac OS X ships with a broken assembler
3229 roms=
3230 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
3231         test "$targetos" != "darwin" && test "$targetos" != "sunos" && \
3232         test "$targetos" != "haiku" && test "$softmmu" = yes ; then
3233     # Different host OS linkers have different ideas about the name of the ELF
3234     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
3235     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
3236     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
3237         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
3238             ld_i386_emulation="$emu"
3239             roms="optionrom"
3240             break
3241         fi
3242     done
3243 fi
3244
3245 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
3246 # or -march=z10 (which is the lowest architecture level that Clang supports)
3247 if test "$cpu" = "s390x" ; then
3248   write_c_skeleton
3249   compile_prog "-march=z900" ""
3250   has_z900=$?
3251   if [ $has_z900 = 0 ] || compile_object "-march=z10 -msoft-float -Werror"; then
3252     if [ $has_z900 != 0 ]; then
3253       echo "WARNING: Your compiler does not support the z900!"
3254       echo "         The s390-ccw bios will only work with guest CPUs >= z10."
3255     fi
3256     roms="$roms s390-ccw"
3257     # SLOF is required for building the s390-ccw firmware on s390x,
3258     # since it is using the libnet code from SLOF for network booting.
3259     git_submodules="${git_submodules} roms/SLOF"
3260   fi
3261 fi
3262
3263 # Check that the C++ compiler exists and works with the C compiler.
3264 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
3265 if has $cxx; then
3266     cat > $TMPC <<EOF
3267 int c_function(void);
3268 int main(void) { return c_function(); }
3269 EOF
3270
3271     compile_object
3272
3273     cat > $TMPCXX <<EOF
3274 extern "C" {
3275    int c_function(void);
3276 }
3277 int c_function(void) { return 42; }
3278 EOF
3279
3280     update_cxxflags
3281
3282     if do_cxx $CXXFLAGS $EXTRA_CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
3283         # C++ compiler $cxx works ok with C compiler $cc
3284         :
3285     else
3286         echo "C++ compiler $cxx does not work with C compiler $cc"
3287         echo "Disabling C++ specific optional code"
3288         cxx=
3289     fi
3290 else
3291     echo "No C++ compiler available; disabling C++ specific optional code"
3292     cxx=
3293 fi
3294
3295 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
3296     exit 1
3297 fi
3298
3299 config_host_mak="config-host.mak"
3300
3301 echo "# Automatically generated by configure - do not modify" > $config_host_mak
3302 echo >> $config_host_mak
3303
3304 echo all: >> $config_host_mak
3305 echo "GIT=$git" >> $config_host_mak
3306 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
3307 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
3308
3309 if test "$debug_tcg" = "yes" ; then
3310   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
3311 fi
3312 if test "$mingw32" = "yes" ; then
3313   echo "CONFIG_WIN32=y" >> $config_host_mak
3314   if test "$guest_agent_with_vss" = "yes" ; then
3315     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
3316     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
3317     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
3318   fi
3319   if test "$guest_agent_ntddscsi" = "yes" ; then
3320     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
3321   fi
3322   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
3323   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
3324   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
3325   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
3326 else
3327   echo "CONFIG_POSIX=y" >> $config_host_mak
3328 fi
3329
3330 if test "$linux" = "yes" ; then
3331   echo "CONFIG_LINUX=y" >> $config_host_mak
3332 fi
3333
3334 if test "$darwin" = "yes" ; then
3335   echo "CONFIG_DARWIN=y" >> $config_host_mak
3336 fi
3337
3338 if test "$solaris" = "yes" ; then
3339   echo "CONFIG_SOLARIS=y" >> $config_host_mak
3340 fi
3341 if test "$static" = "yes" ; then
3342   echo "CONFIG_STATIC=y" >> $config_host_mak
3343 fi
3344 if test "$profiler" = "yes" ; then
3345   echo "CONFIG_PROFILER=y" >> $config_host_mak
3346 fi
3347 if test "$want_tools" = "yes" ; then
3348   echo "CONFIG_TOOLS=y" >> $config_host_mak
3349 fi
3350 if test "$guest_agent" = "yes" ; then
3351   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
3352 fi
3353 if test "$slirp_smbd" = "yes" ; then
3354   echo "CONFIG_SLIRP_SMBD=y" >> $config_host_mak
3355   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
3356 fi
3357 if test "$gprof" = "yes" ; then
3358   echo "CONFIG_GPROF=y" >> $config_host_mak
3359 fi
3360 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
3361 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
3362 if test "$block_drv_whitelist_tools" = "yes" ; then
3363   echo "CONFIG_BDRV_WHITELIST_TOOLS=y" >> $config_host_mak
3364 fi
3365 qemu_version=$(head $source_path/VERSION)
3366 echo "PKGVERSION=$pkgversion" >>$config_host_mak
3367 echo "SRC_PATH=$source_path" >> $config_host_mak
3368 echo "TARGET_DIRS=$target_list" >> $config_host_mak
3369 if test "$modules" = "yes"; then
3370   # $shacmd can generate a hash started with digit, which the compiler doesn't
3371   # like as an symbol. So prefix it with an underscore
3372   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
3373   echo "CONFIG_MODULES=y" >> $config_host_mak
3374 fi
3375 if test "$module_upgrades" = "yes"; then
3376   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
3377 fi
3378 if test "$have_usbfs" = "yes" ; then
3379   echo "CONFIG_USBFS=y" >> $config_host_mak
3380 fi
3381 if test "$gio" = "yes" ; then
3382     echo "CONFIG_GIO=y" >> $config_host_mak
3383     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
3384     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
3385 fi
3386 if test "$gdbus_codegen" != "" ; then
3387     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
3388 fi
3389 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
3390
3391 if test "$xen" = "enabled" ; then
3392   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
3393   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
3394   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
3395   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
3396 fi
3397 if test "$vhost_scsi" = "yes" ; then
3398   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
3399 fi
3400 if test "$vhost_net" = "yes" ; then
3401   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
3402 fi
3403 if test "$vhost_net_user" = "yes" ; then
3404   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
3405 fi
3406 if test "$vhost_net_vdpa" = "yes" ; then
3407   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
3408 fi
3409 if test "$vhost_crypto" = "yes" ; then
3410   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
3411 fi
3412 if test "$vhost_vsock" = "yes" ; then
3413   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
3414   if test "$vhost_user" = "yes" ; then
3415     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
3416   fi
3417 fi
3418 if test "$vhost_kernel" = "yes" ; then
3419   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
3420 fi
3421 if test "$vhost_user" = "yes" ; then
3422   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
3423 fi
3424 if test "$vhost_vdpa" = "yes" ; then
3425   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
3426 fi
3427 if test "$vhost_user_fs" = "yes" ; then
3428   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
3429 fi
3430 if test "$membarrier" = "yes" ; then
3431   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
3432 fi
3433 if test "$tcg" = "enabled" -a "$tcg_interpreter" = "true" ; then
3434   echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
3435 fi
3436
3437 if test "$opengl" = "yes" ; then
3438   echo "CONFIG_OPENGL=y" >> $config_host_mak
3439   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
3440   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
3441 fi
3442
3443 if test "$avx2_opt" = "yes" ; then
3444   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
3445 fi
3446
3447 if test "$avx512f_opt" = "yes" ; then
3448   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
3449 fi
3450
3451 # XXX: suppress that
3452 if [ "$bsd" = "yes" ] ; then
3453   echo "CONFIG_BSD=y" >> $config_host_mak
3454 fi
3455
3456 if test "$qom_cast_debug" = "yes" ; then
3457   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
3458 fi
3459
3460 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
3461 if test "$coroutine_pool" = "yes" ; then
3462   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
3463 else
3464   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
3465 fi
3466
3467 if test "$debug_stack_usage" = "yes" ; then
3468   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
3469 fi
3470
3471 if test "$crypto_afalg" = "yes" ; then
3472   echo "CONFIG_AF_ALG=y" >> $config_host_mak
3473 fi
3474
3475 if test "$have_asan_iface_fiber" = "yes" ; then
3476     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
3477 fi
3478
3479 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
3480     echo "CONFIG_TSAN=y" >> $config_host_mak
3481 fi
3482
3483 if test "$cpuid_h" = "yes" ; then
3484   echo "CONFIG_CPUID_H=y" >> $config_host_mak
3485 fi
3486
3487 if test "$int128" = "yes" ; then
3488   echo "CONFIG_INT128=y" >> $config_host_mak
3489 fi
3490
3491 if test "$atomic128" = "yes" ; then
3492   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
3493 fi
3494
3495 if test "$cmpxchg128" = "yes" ; then
3496   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
3497 fi
3498
3499 if test "$live_block_migration" = "yes" ; then
3500   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
3501 fi
3502
3503 if test "$tpm" = "yes"; then
3504   echo 'CONFIG_TPM=y' >> $config_host_mak
3505 fi
3506
3507 if test "$rdma" = "yes" ; then
3508   echo "CONFIG_RDMA=y" >> $config_host_mak
3509   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
3510 fi
3511
3512 if test "$pvrdma" = "yes" ; then
3513   echo "CONFIG_PVRDMA=y" >> $config_host_mak
3514 fi
3515
3516 if test "$replication" = "yes" ; then
3517   echo "CONFIG_REPLICATION=y" >> $config_host_mak
3518 fi
3519
3520 if test "$debug_mutex" = "yes" ; then
3521   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
3522 fi
3523
3524 if test "$bochs" = "yes" ; then
3525   echo "CONFIG_BOCHS=y" >> $config_host_mak
3526 fi
3527 if test "$cloop" = "yes" ; then
3528   echo "CONFIG_CLOOP=y" >> $config_host_mak
3529 fi
3530 if test "$dmg" = "yes" ; then
3531   echo "CONFIG_DMG=y" >> $config_host_mak
3532 fi
3533 if test "$qcow1" = "yes" ; then
3534   echo "CONFIG_QCOW1=y" >> $config_host_mak
3535 fi
3536 if test "$vdi" = "yes" ; then
3537   echo "CONFIG_VDI=y" >> $config_host_mak
3538 fi
3539 if test "$vvfat" = "yes" ; then
3540   echo "CONFIG_VVFAT=y" >> $config_host_mak
3541 fi
3542 if test "$qed" = "yes" ; then
3543   echo "CONFIG_QED=y" >> $config_host_mak
3544 fi
3545 if test "$parallels" = "yes" ; then
3546   echo "CONFIG_PARALLELS=y" >> $config_host_mak
3547 fi
3548
3549 if test "$plugins" = "yes" ; then
3550     echo "CONFIG_PLUGIN=y" >> $config_host_mak
3551 fi
3552
3553 if test -n "$gdb_bin"; then
3554     gdb_version=$($gdb_bin --version | head -n 1)
3555     if version_ge ${gdb_version##* } 9.1; then
3556         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
3557     fi
3558 fi
3559
3560 if test "$secret_keyring" = "yes" ; then
3561   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
3562 fi
3563
3564 echo "ROMS=$roms" >> $config_host_mak
3565 echo "MAKE=$make" >> $config_host_mak
3566 echo "PYTHON=$python" >> $config_host_mak
3567 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
3568 echo "MESON=$meson" >> $config_host_mak
3569 echo "NINJA=$ninja" >> $config_host_mak
3570 echo "CC=$cc" >> $config_host_mak
3571 echo "HOST_CC=$host_cc" >> $config_host_mak
3572 if $iasl -h > /dev/null 2>&1; then
3573   echo "CONFIG_IASL=$iasl" >> $config_host_mak
3574 fi
3575 echo "AR=$ar" >> $config_host_mak
3576 echo "AS=$as" >> $config_host_mak
3577 echo "CCAS=$ccas" >> $config_host_mak
3578 echo "CPP=$cpp" >> $config_host_mak
3579 echo "OBJCOPY=$objcopy" >> $config_host_mak
3580 echo "LD=$ld" >> $config_host_mak
3581 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
3582 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
3583 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
3584 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
3585 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
3586 echo "GLIB_VERSION=$(pkg-config --modversion glib-2.0)" >> $config_host_mak
3587 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
3588 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
3589 echo "STRIP=$strip" >> $config_host_mak
3590 echo "EXESUF=$EXESUF" >> $config_host_mak
3591 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
3592
3593 if test "$rng_none" = "yes"; then
3594   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
3595 fi
3596
3597 # use included Linux headers
3598 if test "$linux" = "yes" ; then
3599   mkdir -p linux-headers
3600   case "$cpu" in
3601   i386|x86_64)
3602     linux_arch=x86
3603     ;;
3604   ppc|ppc64)
3605     linux_arch=powerpc
3606     ;;
3607   s390x)
3608     linux_arch=s390
3609     ;;
3610   aarch64)
3611     linux_arch=arm64
3612     ;;
3613   loongarch*)
3614     linux_arch=loongarch
3615     ;;
3616   mips64)
3617     linux_arch=mips
3618     ;;
3619   *)
3620     # For most CPUs the kernel architecture name and QEMU CPU name match.
3621     linux_arch="$cpu"
3622     ;;
3623   esac
3624     # For non-KVM architectures we will not have asm headers
3625     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
3626       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
3627     fi
3628 fi
3629
3630 for target in $target_list; do
3631     target_dir="$target"
3632     target_name=$(echo $target | cut -d '-' -f 1)$EXESUF
3633     mkdir -p $target_dir
3634     case $target in
3635         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
3636         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
3637     esac
3638 done
3639
3640 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
3641 if test "$default_targets" = "yes"; then
3642   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
3643 fi
3644
3645 if test "$numa" = "yes"; then
3646   echo "CONFIG_NUMA=y" >> $config_host_mak
3647   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
3648 fi
3649
3650 if test "$ccache_cpp2" = "yes"; then
3651   echo "export CCACHE_CPP2=y" >> $config_host_mak
3652 fi
3653
3654 if test "$safe_stack" = "yes"; then
3655   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
3656 fi
3657
3658 # If we're using a separate build tree, set it up now.
3659 # LINKS are things to symlink back into the source tree
3660 # (these can be both files and directories).
3661 # Caution: do not add files or directories here using wildcards. This
3662 # will result in problems later if a new file matching the wildcard is
3663 # added to the source tree -- nothing will cause configure to be rerun
3664 # so the build tree will be missing the link back to the new file, and
3665 # tests might fail. Prefer to keep the relevant files in their own
3666 # directory and symlink the directory instead.
3667 LINKS="Makefile"
3668 LINKS="$LINKS tests/tcg/Makefile.target"
3669 LINKS="$LINKS pc-bios/optionrom/Makefile"
3670 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
3671 LINKS="$LINKS roms/seabios/Makefile"
3672 LINKS="$LINKS pc-bios/qemu-icon.bmp"
3673 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
3674 LINKS="$LINKS tests/avocado tests/data"
3675 LINKS="$LINKS tests/qemu-iotests/check"
3676 LINKS="$LINKS python"
3677 LINKS="$LINKS contrib/plugins/Makefile "
3678 for bios_file in \
3679     $source_path/pc-bios/*.bin \
3680     $source_path/pc-bios/*.elf \
3681     $source_path/pc-bios/*.lid \
3682     $source_path/pc-bios/*.rom \
3683     $source_path/pc-bios/*.dtb \
3684     $source_path/pc-bios/*.img \
3685     $source_path/pc-bios/openbios-* \
3686     $source_path/pc-bios/u-boot.* \
3687     $source_path/pc-bios/palcode-* \
3688     $source_path/pc-bios/qemu_vga.ndrv
3689
3690 do
3691     LINKS="$LINKS pc-bios/$(basename $bios_file)"
3692 done
3693 for f in $LINKS ; do
3694     if [ -e "$source_path/$f" ]; then
3695         mkdir -p `dirname ./$f`
3696         symlink "$source_path/$f" "$f"
3697     fi
3698 done
3699
3700 (for i in $cross_cc_vars; do
3701   export $i
3702 done
3703 export target_list source_path use_containers cpu
3704 $source_path/tests/tcg/configure.sh)
3705
3706 # temporary config to build submodules
3707 if test -f $source_path/roms/seabios/Makefile; then
3708   for rom in seabios; do
3709     config_mak=roms/$rom/config.mak
3710     echo "# Automatically generated by configure - do not modify" > $config_mak
3711     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
3712     echo "AS=$as" >> $config_mak
3713     echo "CCAS=$ccas" >> $config_mak
3714     echo "CC=$cc" >> $config_mak
3715     echo "BCC=bcc" >> $config_mak
3716     echo "CPP=$cpp" >> $config_mak
3717     echo "OBJCOPY=objcopy" >> $config_mak
3718     echo "IASL=$iasl" >> $config_mak
3719     echo "LD=$ld" >> $config_mak
3720     echo "RANLIB=$ranlib" >> $config_mak
3721   done
3722 fi
3723
3724 config_mak=pc-bios/optionrom/config.mak
3725 echo "# Automatically generated by configure - do not modify" > $config_mak
3726 echo "TOPSRC_DIR=$source_path" >> $config_mak
3727
3728 if test "$skip_meson" = no; then
3729   cross="config-meson.cross.new"
3730   meson_quote() {
3731     test $# = 0 && return
3732     echo "'$(echo $* | sed "s/ /','/g")'"
3733   }
3734
3735   echo "# Automatically generated by configure - do not modify" > $cross
3736   echo "[properties]" >> $cross
3737
3738   # unroll any custom device configs
3739   for a in $device_archs; do
3740       eval "c=\$devices_${a}"
3741       echo "${a}-softmmu = '$c'" >> $cross
3742   done
3743
3744   test -z "$cxx" && echo "link_language = 'c'" >> $cross
3745   echo "[built-in options]" >> $cross
3746   echo "c_args = [$(meson_quote $CFLAGS $EXTRA_CFLAGS)]" >> $cross
3747   echo "cpp_args = [$(meson_quote $CXXFLAGS $EXTRA_CXXFLAGS)]" >> $cross
3748   echo "c_link_args = [$(meson_quote $CFLAGS $LDFLAGS $EXTRA_CFLAGS $EXTRA_LDFLAGS)]" >> $cross
3749   echo "cpp_link_args = [$(meson_quote $CXXFLAGS $LDFLAGS $EXTRA_CXXFLAGS $EXTRA_LDFLAGS)]" >> $cross
3750   echo "[binaries]" >> $cross
3751   echo "c = [$(meson_quote $cc $CPU_CFLAGS)]" >> $cross
3752   test -n "$cxx" && echo "cpp = [$(meson_quote $cxx $CPU_CFLAGS)]" >> $cross
3753   test -n "$objcc" && echo "objc = [$(meson_quote $objcc $CPU_CFLAGS)]" >> $cross
3754   echo "ar = [$(meson_quote $ar)]" >> $cross
3755   echo "nm = [$(meson_quote $nm)]" >> $cross
3756   echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
3757   echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
3758   if has $sdl2_config; then
3759     echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
3760   fi
3761   echo "strip = [$(meson_quote $strip)]" >> $cross
3762   echo "windres = [$(meson_quote $windres)]" >> $cross
3763   if test "$cross_compile" = "yes"; then
3764     cross_arg="--cross-file config-meson.cross"
3765     echo "[host_machine]" >> $cross
3766     echo "system = '$targetos'" >> $cross
3767     case "$cpu" in
3768         i386)
3769             echo "cpu_family = 'x86'" >> $cross
3770             ;;
3771         *)
3772             echo "cpu_family = '$cpu'" >> $cross
3773             ;;
3774     esac
3775     echo "cpu = '$cpu'" >> $cross
3776     if test "$bigendian" = "yes" ; then
3777         echo "endian = 'big'" >> $cross
3778     else
3779         echo "endian = 'little'" >> $cross
3780     fi
3781   else
3782     cross_arg="--native-file config-meson.cross"
3783   fi
3784   mv $cross config-meson.cross
3785
3786   rm -rf meson-private meson-info meson-logs
3787   run_meson() {
3788     NINJA=$ninja $meson setup \
3789         --prefix "$prefix" \
3790         --libdir "$libdir" \
3791         --libexecdir "$libexecdir" \
3792         --bindir "$bindir" \
3793         --includedir "$includedir" \
3794         --datadir "$datadir" \
3795         --mandir "$mandir" \
3796         --sysconfdir "$sysconfdir" \
3797         --localedir "$localedir" \
3798         --localstatedir "$local_statedir" \
3799         -Daudio_drv_list=$audio_drv_list \
3800         -Ddefault_devices=$default_devices \
3801         -Ddocdir="$docdir" \
3802         -Dqemu_firmwarepath="$firmwarepath" \
3803         -Dqemu_suffix="$qemu_suffix" \
3804         -Dsphinx_build="$sphinx_build" \
3805         -Dtrace_file="$trace_file" \
3806         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
3807         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
3808         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
3809         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
3810         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
3811         -Db_lto=$lto -Dcfi=$cfi -Dtcg=$tcg -Dxen=$xen \
3812         -Dcapstone=$capstone -Dfdt=$fdt -Dslirp=$slirp \
3813         $(test -n "${LIB_FUZZING_ENGINE+xxx}" && echo "-Dfuzzing_engine=$LIB_FUZZING_ENGINE") \
3814         $(if test "$default_feature" = no; then echo "-Dauto_features=disabled"; fi) \
3815         "$@" $cross_arg "$PWD" "$source_path"
3816   }
3817   eval run_meson $meson_options
3818   if test "$?" -ne 0 ; then
3819       error_exit "meson setup failed"
3820   fi
3821 else
3822   if test -f meson-private/cmd_line.txt; then
3823     # Adjust old command line options whose type was changed
3824     # Avoids having to use "setup --wipe" when Meson is upgraded
3825     perl -i -ne '
3826       s/^gettext = true$/gettext = auto/;
3827       s/^gettext = false$/gettext = disabled/;
3828       /^b_staticpic/ && next;
3829       print;' meson-private/cmd_line.txt
3830   fi
3831 fi
3832
3833 if test -n "${deprecated_features}"; then
3834     echo "Warning, deprecated features enabled."
3835     echo "Please see docs/about/deprecated.rst"
3836     echo "  features: ${deprecated_features}"
3837 fi
3838
3839 # Save the configure command line for later reuse.
3840 cat <<EOD >config.status
3841 #!/bin/sh
3842 # Generated by configure.
3843 # Run this file to recreate the current configuration.
3844 # Compiler output produced by configure, useful for debugging
3845 # configure, is in config.log if it exists.
3846 EOD
3847
3848 preserve_env() {
3849     envname=$1
3850
3851     eval envval=\$$envname
3852
3853     if test -n "$envval"
3854     then
3855         echo "$envname='$envval'" >> config.status
3856         echo "export $envname" >> config.status
3857     else
3858         echo "unset $envname" >> config.status
3859     fi
3860 }
3861
3862 # Preserve various env variables that influence what
3863 # features/build target configure will detect
3864 preserve_env AR
3865 preserve_env AS
3866 preserve_env CC
3867 preserve_env CPP
3868 preserve_env CFLAGS
3869 preserve_env CXX
3870 preserve_env CXXFLAGS
3871 preserve_env INSTALL
3872 preserve_env LD
3873 preserve_env LDFLAGS
3874 preserve_env LD_LIBRARY_PATH
3875 preserve_env LIBTOOL
3876 preserve_env MAKE
3877 preserve_env NM
3878 preserve_env OBJCOPY
3879 preserve_env PATH
3880 preserve_env PKG_CONFIG
3881 preserve_env PKG_CONFIG_LIBDIR
3882 preserve_env PKG_CONFIG_PATH
3883 preserve_env PYTHON
3884 preserve_env SDL2_CONFIG
3885 preserve_env SMBD
3886 preserve_env STRIP
3887 preserve_env WINDRES
3888
3889 printf "exec" >>config.status
3890 for i in "$0" "$@"; do
3891   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
3892 done
3893 echo ' "$@"' >>config.status
3894 chmod +x config.status
3895
3896 rm -r "$TMPDIR1"