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}/${TMPB}.exe"
  81 TMPTXT="${TMPDIR1}/${TMPB}.txt"
  82
  83 rm -f config.log
  84
  85 # Print a helpful header at the top of config.log
  86 echo "# QEMU configure log $(date)" >> config.log
  87 printf "# Configured with:" >> config.log
  88 printf " '%s'" "$0" "$@" >> config.log
  89 echo >> config.log
  90 echo "#" >> config.log
  91
  92 quote_sh() {
  93     printf "%s" "$1" | sed "s,','\\\\'',g; s,.*,'&',"
  94 }
  95
  96 print_error() {
  97     (echo
  98     echo "ERROR: $1"
  99     while test -n "$2"; do
 100         echo "       $2"
 101         shift
 102     done
 103     echo) >&2
 104 }
 105
 106 error_exit() {
 107     print_error "$@"
 108     exit 1
 109 }
 110
 111 do_compiler() {
 112     # Run the compiler, capturing its output to the log. First argument
 113     # is compiler binary to execute.
 114     compiler="$1"
 115     shift
 116     if test -n "$BASH_VERSION"; then eval '
 117         echo >>config.log "
 118 funcs: ${FUNCNAME[*]}
 119 lines: ${BASH_LINENO[*]}"
 120     '; fi
 121     echo $compiler "$@" >> config.log
 122     $compiler "$@" >> config.log 2>&1 || return $?
 123     # Test passed. If this is an --enable-werror build, rerun
 124     # the test with -Werror and bail out if it fails. This
 125     # makes warning-generating-errors in configure test code
 126     # obvious to developers.
 127     if test "$werror" != "yes"; then
 128         return 0
 129     fi
 130     # Don't bother rerunning the compile if we were already using -Werror
 131     case "$*" in
 132         *-Werror*)
 133            return 0
 134         ;;
 135     esac
 136     echo $compiler -Werror "$@" >> config.log
 137     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 138     error_exit "configure test passed without -Werror but failed with -Werror." \
 139         "This is probably a bug in the configure script. The failing command" \
 140         "will be at the bottom of config.log." \
 141         "You can run configure with --disable-werror to bypass this check."
 142 }
 143
 144 do_cc() {
 145     do_compiler "$cc" "$@"
 146 }
 147
 148 do_cxx() {
 149     do_compiler "$cxx" "$@"
 150 }
 151
 152 # Append $2 to the variable named $1, with space separation
 153 add_to() {
 154     eval $1=\${$1:+\"\$$1 \"}\$2
 155 }
 156
 157 update_cxxflags() {
 158     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 159     # options which some versions of GCC's C++ compiler complain about
 160     # because they only make sense for C programs.
 161     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 162     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 163     for arg in $QEMU_CFLAGS; do
 164         case $arg in
 165             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 166             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 167                 ;;
 168             *)
 169                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 170                 ;;
 171         esac
 172     done
 173 }
 174
 175 compile_object() {
 176   local_cflags="$1"
 177   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 178 }
 179
 180 compile_prog() {
 181   local_cflags="$1"
 182   local_ldflags="$2"
 183   do_cc $CFLAGS $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 184       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 185 }
 186
 187 # symbolically link $1 to $2.  Portable version of "ln -sf".
 188 symlink() {
 189   rm -rf "$2"
 190   mkdir -p "$(dirname "$2")"
 191   ln -s "$1" "$2"
 192 }
 193
 194 # check whether a command is available to this shell (may be either an
 195 # executable or a builtin)
 196 has() {
 197     type "$1" >/dev/null 2>&1
 198 }
 199
 200 version_ge () {
 201     local_ver1=$(expr "$1" : '\([0-9.]*\)' | tr . ' ')
 202     local_ver2=$(echo "$2" | tr . ' ')
 203     while true; do
 204         set x $local_ver1
 205         local_first=${2-0}
 206         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 207         shift ${2:+2}
 208         local_ver1=$*
 209         set x $local_ver2
 210         # the second argument finished, the first must be greater or equal
 211         test $# = 1 && return 0
 212         test $local_first -lt $2 && return 1
 213         test $local_first -gt $2 && return 0
 214         shift ${2:+2}
 215         local_ver2=$*
 216     done
 217 }
 218
 219 have_backend () {
 220     echo "$trace_backends" | grep "$1" >/dev/null
 221 }
 222
 223 glob() {
 224     eval test -z '"${1#'"$2"'}"'
 225 }
 226
 227 ld_has() {
 228     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 229 }
 230
 231 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_compile="no"
 242 cross_prefix=""
 243 audio_drv_list=""
 244 block_drv_rw_whitelist=""
 245 block_drv_ro_whitelist=""
 246 host_cc="cc"
 247 audio_win_int=""
 248 libs_qga=""
 249 debug_info="yes"
 250 lto="false"
 251 stack_protector=""
 252 safe_stack=""
 253 use_containers="yes"
 254 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 255
 256 if test -e "$source_path/.git"
 257 then
 258     git_submodules_action="update"
 259     git_submodules="ui/keycodemapdb"
 260     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 261     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 262 else
 263     git_submodules_action="ignore"
 264     git_submodules=""
 265
 266     if ! test -f "$source_path/ui/keycodemapdb/README"
 267     then
 268         echo
 269         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 270         echo
 271         echo "This is not a GIT checkout but module content appears to"
 272         echo "be missing. Do not use 'git archive' or GitHub download links"
 273         echo "to acquire QEMU source archives. Non-GIT builds are only"
 274         echo "supported with source archives linked from:"
 275         echo
 276         echo "  https://www.qemu.org/download/#source"
 277         echo
 278         echo "Developers working with GIT can use scripts/archive-source.sh"
 279         echo "if they need to create valid source archives."
 280         echo
 281         exit 1
 282     fi
 283 fi
 284 git="git"
 285
 286 # Don't accept a target_list environment variable.
 287 unset target_list
 288 unset target_list_exclude
 289
 290 # Default value for a variable defining feature "foo".
 291 #  * foo="no"  feature will only be used if --enable-foo arg is given
 292 #  * foo=""    feature will be searched for, and if found, will be used
 293 #              unless --disable-foo is given
 294 #  * foo="yes" this value will only be set by --enable-foo flag.
 295 #              feature will searched for,
 296 #              if not found, configure exits with error
 297 #
 298 # Always add --enable-foo and --disable-foo command line args.
 299 # Distributions want to ensure that several features are compiled in, and it
 300 # is impossible without a --enable-foo that exits if a feature is not found.
 301
 302 default_feature=""
 303 # parse CC options second
 304 for opt do
 305   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 306   case "$opt" in
 307       --without-default-features)
 308           default_feature="no"
 309   ;;
 310   esac
 311 done
 312
 313 brlapi="auto"
 314 curl="auto"
 315 iconv="auto"
 316 curses="auto"
 317 docs="auto"
 318 fdt="auto"
 319 netmap="no"
 320 sdl="auto"
 321 sdl_image="auto"
 322 coreaudio="auto"
 323 virtiofsd="auto"
 324 virtfs="auto"
 325 libudev="auto"
 326 mpath="auto"
 327 vnc="enabled"
 328 sparse="auto"
 329 vde="$default_feature"
 330 vnc_sasl="auto"
 331 vnc_jpeg="auto"
 332 vnc_png="auto"
 333 xkbcommon="auto"
 334 xen="$default_feature"
 335 xen_ctrl_version="$default_feature"
 336 xen_pci_passthrough="auto"
 337 linux_aio="$default_feature"
 338 linux_io_uring="$default_feature"
 339 cap_ng="auto"
 340 attr="auto"
 341 xfs="$default_feature"
 342 tcg="enabled"
 343 membarrier="$default_feature"
 344 vhost_net="$default_feature"
 345 vhost_crypto="$default_feature"
 346 vhost_scsi="$default_feature"
 347 vhost_vsock="$default_feature"
 348 vhost_user="no"
 349 vhost_user_blk_server="auto"
 350 vhost_user_fs="$default_feature"
 351 kvm="auto"
 352 hax="auto"
 353 hvf="auto"
 354 whpx="auto"
 355 rdma="$default_feature"
 356 pvrdma="$default_feature"
 357 gprof="no"
 358 debug_tcg="no"
 359 debug="no"
 360 sanitizers="no"
 361 tsan="no"
 362 fortify_source="$default_feature"
 363 strip_opt="yes"
 364 tcg_interpreter="false"
 365 bigendian="no"
 366 mingw32="no"
 367 gcov="no"
 368 EXESUF=""
 369 HOST_DSOSUF=".so"
 370 modules="no"
 371 module_upgrades="no"
 372 prefix="/usr/local"
 373 qemu_suffix="qemu"
 374 slirp="auto"
 375 oss_lib=""
 376 bsd="no"
 377 linux="no"
 378 solaris="no"
 379 profiler="no"
 380 cocoa="auto"
 381 softmmu="yes"
 382 linux_user="no"
 383 bsd_user="no"
 384 blobs="true"
 385 pkgversion=""
 386 pie=""
 387 qom_cast_debug="yes"
 388 trace_backends="log"
 389 trace_file="trace"
 390 spice="$default_feature"
 391 rbd="auto"
 392 smartcard="$default_feature"
 393 u2f="auto"
 394 libusb="$default_feature"
 395 usb_redir="$default_feature"
 396 opengl="$default_feature"
 397 cpuid_h="no"
 398 avx2_opt="$default_feature"
 399 capstone="auto"
 400 lzo="auto"
 401 snappy="auto"
 402 bzip2="auto"
 403 lzfse="auto"
 404 zstd="auto"
 405 guest_agent="$default_feature"
 406 guest_agent_with_vss="no"
 407 guest_agent_ntddscsi="no"
 408 guest_agent_msi="auto"
 409 vss_win32_sdk="$default_feature"
 410 win_sdk="no"
 411 want_tools="$default_feature"
 412 libiscsi="auto"
 413 libnfs="auto"
 414 coroutine=""
 415 coroutine_pool="$default_feature"
 416 debug_stack_usage="no"
 417 crypto_afalg="no"
 418 cfi="false"
 419 cfi_debug="false"
 420 seccomp="auto"
 421 glusterfs="auto"
 422 gtk="auto"
 423 tls_priority="NORMAL"
 424 gnutls="$default_feature"
 425 nettle="$default_feature"
 426 nettle_xts="no"
 427 gcrypt="$default_feature"
 428 gcrypt_hmac="no"
 429 gcrypt_xts="no"
 430 qemu_private_xts="yes"
 431 auth_pam="$default_feature"
 432 vte="$default_feature"
 433 virglrenderer="$default_feature"
 434 tpm="$default_feature"
 435 libssh="$default_feature"
 436 live_block_migration=${default_feature:-yes}
 437 numa="$default_feature"
 438 tcmalloc="no"
 439 jemalloc="no"
 440 replication=${default_feature:-yes}
 441 bochs=${default_feature:-yes}
 442 cloop=${default_feature:-yes}
 443 dmg=${default_feature:-yes}
 444 qcow1=${default_feature:-yes}
 445 vdi=${default_feature:-yes}
 446 vvfat=${default_feature:-yes}
 447 qed=${default_feature:-yes}
 448 parallels=${default_feature:-yes}
 449 sheepdog="no"
 450 libxml2="$default_feature"
 451 debug_mutex="no"
 452 libpmem="$default_feature"
 453 default_devices="true"
 454 plugins="no"
 455 fuzzing="no"
 456 rng_none="no"
 457 secret_keyring="$default_feature"
 458 libdaxctl="$default_feature"
 459 meson=""
 460 ninja=""
 461 skip_meson=no
 462 gettext="auto"
 463 fuse="auto"
 464 fuse_lseek="auto"
 465 multiprocess="auto"
 466
 467 malloc_trim="auto"
 468 gio="$default_feature"
 469
 470 # parse CC options second
 471 for opt do
 472   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 473   case "$opt" in
 474   --cross-prefix=*) cross_prefix="$optarg"
 475                     cross_compile="yes"
 476   ;;
 477   --cc=*) CC="$optarg"
 478   ;;
 479   --cxx=*) CXX="$optarg"
 480   ;;
 481   --cpu=*) cpu="$optarg"
 482   ;;
 483   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 484                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 485   ;;
 486   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 487   ;;
 488   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 489                      EXTRA_LDFLAGS="$optarg"
 490   ;;
 491   --enable-debug-info) debug_info="yes"
 492   ;;
 493   --disable-debug-info) debug_info="no"
 494   ;;
 495   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 496   ;;
 497   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 498                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 499                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 500   ;;
 501   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 502                 cc_archs="$cc_archs $cc_arch"
 503                 eval "cross_cc_${cc_arch}=\$optarg"
 504                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 505   ;;
 506   esac
 507 done
 508 # OS specific
 509 # Using uname is really, really broken.  Once we have the right set of checks
 510 # we can eliminate its usage altogether.
 511
 512 # Preferred compiler:
 513 #  ${CC} (if set)
 514 #  ${cross_prefix}gcc (if cross-prefix specified)
 515 #  system compiler
 516 if test -z "${CC}${cross_prefix}"; then
 517   cc="$host_cc"
 518 else
 519   cc="${CC-${cross_prefix}gcc}"
 520 fi
 521
 522 if test -z "${CXX}${cross_prefix}"; then
 523   cxx="c++"
 524 else
 525   cxx="${CXX-${cross_prefix}g++}"
 526 fi
 527
 528 ar="${AR-${cross_prefix}ar}"
 529 as="${AS-${cross_prefix}as}"
 530 ccas="${CCAS-$cc}"
 531 cpp="${CPP-$cc -E}"
 532 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 533 ld="${LD-${cross_prefix}ld}"
 534 ranlib="${RANLIB-${cross_prefix}ranlib}"
 535 nm="${NM-${cross_prefix}nm}"
 536 strip="${STRIP-${cross_prefix}strip}"
 537 windres="${WINDRES-${cross_prefix}windres}"
 538 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 539 query_pkg_config() {
 540     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 541 }
 542 pkg_config=query_pkg_config
 543 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 544
 545 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 546 ARFLAGS="${ARFLAGS-rv}"
 547
 548 # default flags for all hosts
 549 # We use -fwrapv to tell the compiler that we require a C dialect where
 550 # left shift of signed integers is well defined and has the expected
 551 # 2s-complement style results. (Both clang and gcc agree that it
 552 # provides these semantics.)
 553 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 554 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 555 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 556 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 557
 558 # Flags that are needed during configure but later taken care of by Meson
 559 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 560 CONFIGURE_LDFLAGS=
 561
 562
 563 check_define() {
 564 cat > $TMPC <<EOF
 565 #if !defined($1)
 566 #error $1 not defined
 567 #endif
 568 int main(void) { return 0; }
 569 EOF
 570   compile_object
 571 }
 572
 573 check_include() {
 574 cat > $TMPC <<EOF
 575 #include <$1>
 576 int main(void) { return 0; }
 577 EOF
 578   compile_object
 579 }
 580
 581 write_c_skeleton() {
 582     cat > $TMPC <<EOF
 583 int main(void) { return 0; }
 584 EOF
 585 }
 586
 587 write_c_fuzzer_skeleton() {
 588     cat > $TMPC <<EOF
 589 #include <stdint.h>
 590 #include <sys/types.h>
 591 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 592 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 593 EOF
 594 }
 595
 596 if check_define __linux__ ; then
 597   targetos="Linux"
 598 elif check_define _WIN32 ; then
 599   targetos='MINGW32'
 600 elif check_define __OpenBSD__ ; then
 601   targetos='OpenBSD'
 602 elif check_define __sun__ ; then
 603   targetos='SunOS'
 604 elif check_define __HAIKU__ ; then
 605   targetos='Haiku'
 606 elif check_define __FreeBSD__ ; then
 607   targetos='FreeBSD'
 608 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 609   targetos='GNU/kFreeBSD'
 610 elif check_define __DragonFly__ ; then
 611   targetos='DragonFly'
 612 elif check_define __NetBSD__; then
 613   targetos='NetBSD'
 614 elif check_define __APPLE__; then
 615   targetos='Darwin'
 616 else
 617   # This is a fatal error, but don't report it yet, because we
 618   # might be going to just print the --help text, or it might
 619   # be the result of a missing compiler.
 620   targetos='bogus'
 621 fi
 622
 623 # Some host OSes need non-standard checks for which CPU to use.
 624 # Note that these checks are broken for cross-compilation: if you're
 625 # cross-compiling to one of these OSes then you'll need to specify
 626 # the correct CPU with the --cpu option.
 627 case $targetos in
 628 Darwin)
 629   HOST_DSOSUF=".dylib"
 630   ;;
 631 SunOS)
 632   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 633   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 634     cpu="x86_64"
 635   fi
 636 esac
 637
 638 if test ! -z "$cpu" ; then
 639   # command line argument
 640   :
 641 elif check_define __i386__ ; then
 642   cpu="i386"
 643 elif check_define __x86_64__ ; then
 644   if check_define __ILP32__ ; then
 645     cpu="x32"
 646   else
 647     cpu="x86_64"
 648   fi
 649 elif check_define __sparc__ ; then
 650   if check_define __arch64__ ; then
 651     cpu="sparc64"
 652   else
 653     cpu="sparc"
 654   fi
 655 elif check_define _ARCH_PPC ; then
 656   if check_define _ARCH_PPC64 ; then
 657     if check_define _LITTLE_ENDIAN ; then
 658       cpu="ppc64le"
 659     else
 660       cpu="ppc64"
 661     fi
 662   else
 663     cpu="ppc"
 664   fi
 665 elif check_define __mips__ ; then
 666   cpu="mips"
 667 elif check_define __s390__ ; then
 668   if check_define __s390x__ ; then
 669     cpu="s390x"
 670   else
 671     cpu="s390"
 672   fi
 673 elif check_define __riscv ; then
 674   if check_define _LP64 ; then
 675     cpu="riscv64"
 676   else
 677     cpu="riscv32"
 678   fi
 679 elif check_define __arm__ ; then
 680   cpu="arm"
 681 elif check_define __aarch64__ ; then
 682   cpu="aarch64"
 683 else
 684   cpu=$(uname -m)
 685 fi
 686
 687 ARCH=
 688 # Normalise host CPU name and set ARCH.
 689 # Note that this case should only have supported host CPUs, not guests.
 690 case "$cpu" in
 691   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 692   ;;
 693   ppc64le)
 694     ARCH="ppc64"
 695   ;;
 696   i386|i486|i586|i686|i86pc|BePC)
 697     cpu="i386"
 698   ;;
 699   x86_64|amd64)
 700     cpu="x86_64"
 701   ;;
 702   armv*b|armv*l|arm)
 703     cpu="arm"
 704   ;;
 705   aarch64)
 706     cpu="aarch64"
 707   ;;
 708   mips*)
 709     cpu="mips"
 710   ;;
 711   sparc|sun4[cdmuv])
 712     cpu="sparc"
 713   ;;
 714   *)
 715     # This will result in either an error or falling back to TCI later
 716     ARCH=unknown
 717   ;;
 718 esac
 719 if test -z "$ARCH"; then
 720   ARCH="$cpu"
 721 fi
 722
 723 # OS specific
 724
 725 case $targetos in
 726 MINGW32*)
 727   mingw32="yes"
 728   audio_possible_drivers="dsound sdl"
 729   if check_include dsound.h; then
 730     audio_drv_list="dsound"
 731   else
 732     audio_drv_list=""
 733   fi
 734   supported_os="yes"
 735   pie="no"
 736 ;;
 737 GNU/kFreeBSD)
 738   bsd="yes"
 739   audio_drv_list="oss try-sdl"
 740   audio_possible_drivers="oss sdl pa"
 741 ;;
 742 FreeBSD)
 743   bsd="yes"
 744   make="${MAKE-gmake}"
 745   audio_drv_list="oss try-sdl"
 746   audio_possible_drivers="oss sdl pa"
 747   # needed for kinfo_getvmmap(3) in libutil.h
 748   netmap=""  # enable netmap autodetect
 749 ;;
 750 DragonFly)
 751   bsd="yes"
 752   make="${MAKE-gmake}"
 753   audio_drv_list="oss try-sdl"
 754   audio_possible_drivers="oss sdl pa"
 755 ;;
 756 NetBSD)
 757   bsd="yes"
 758   make="${MAKE-gmake}"
 759   audio_drv_list="oss try-sdl"
 760   audio_possible_drivers="oss sdl"
 761   oss_lib="-lossaudio"
 762 ;;
 763 OpenBSD)
 764   bsd="yes"
 765   make="${MAKE-gmake}"
 766   audio_drv_list="try-sdl"
 767   audio_possible_drivers="sdl"
 768 ;;
 769 Darwin)
 770   bsd="yes"
 771   darwin="yes"
 772   audio_drv_list="try-coreaudio try-sdl"
 773   audio_possible_drivers="coreaudio sdl"
 774   # Disable attempts to use ObjectiveC features in os/object.h since they
 775   # won't work when we're compiling with gcc as a C compiler.
 776   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 777 ;;
 778 SunOS)
 779   solaris="yes"
 780   make="${MAKE-gmake}"
 781   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 782   if test -f /usr/include/sys/soundcard.h ; then
 783     audio_drv_list="oss try-sdl"
 784   fi
 785   audio_possible_drivers="oss sdl"
 786 # needed for CMSG_ macros in sys/socket.h
 787   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 788 # needed for TIOCWIN* defines in termios.h
 789   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 790 ;;
 791 Haiku)
 792   haiku="yes"
 793   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 794 ;;
 795 Linux)
 796   audio_drv_list="try-pa oss"
 797   audio_possible_drivers="oss alsa sdl pa"
 798   linux="yes"
 799   linux_user="yes"
 800   vhost_user=${default_feature:-yes}
 801 ;;
 802 esac
 803
 804 if [ "$bsd" = "yes" ] ; then
 805   if [ "$darwin" != "yes" ] ; then
 806     bsd_user="yes"
 807   fi
 808 fi
 809
 810 : ${make=${MAKE-make}}
 811
 812 # We prefer python 3.x. A bare 'python' is traditionally
 813 # python 2.x, but some distros have it as python 3.x, so
 814 # we check that too
 815 python=
 816 explicit_python=no
 817 for binary in "${PYTHON-python3}" python
 818 do
 819     if has "$binary"
 820     then
 821         python=$(command -v "$binary")
 822         break
 823     fi
 824 done
 825
 826
 827 # Check for ancillary tools used in testing
 828 genisoimage=
 829 for binary in genisoimage mkisofs
 830 do
 831     if has $binary
 832     then
 833         genisoimage=$(command -v "$binary")
 834         break
 835     fi
 836 done
 837
 838 : ${smbd=${SMBD-/usr/sbin/smbd}}
 839
 840 # Default objcc to clang if available, otherwise use CC
 841 if has clang; then
 842   objcc=clang
 843 else
 844   objcc="$cc"
 845 fi
 846
 847 if test "$mingw32" = "yes" ; then
 848   EXESUF=".exe"
 849   HOST_DSOSUF=".dll"
 850   # MinGW needs -mthreads for TLS and macro _MT.
 851   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 852   write_c_skeleton;
 853   prefix="/qemu"
 854   qemu_suffix=""
 855   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 856 fi
 857
 858 werror=""
 859
 860 for opt do
 861   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 862   case "$opt" in
 863   --help|-h) show_help=yes
 864   ;;
 865   --version|-V) exec cat $source_path/VERSION
 866   ;;
 867   --prefix=*) prefix="$optarg"
 868   ;;
 869   --interp-prefix=*) interp_prefix="$optarg"
 870   ;;
 871   --cross-prefix=*)
 872   ;;
 873   --cc=*)
 874   ;;
 875   --host-cc=*) host_cc="$optarg"
 876   ;;
 877   --cxx=*)
 878   ;;
 879   --iasl=*) iasl="$optarg"
 880   ;;
 881   --objcc=*) objcc="$optarg"
 882   ;;
 883   --make=*) make="$optarg"
 884   ;;
 885   --install=*)
 886   ;;
 887   --python=*) python="$optarg" ; explicit_python=yes
 888   ;;
 889   --sphinx-build=*) sphinx_build="$optarg"
 890   ;;
 891   --skip-meson) skip_meson=yes
 892   ;;
 893   --meson=*) meson="$optarg"
 894   ;;
 895   --ninja=*) ninja="$optarg"
 896   ;;
 897   --smbd=*) smbd="$optarg"
 898   ;;
 899   --extra-cflags=*)
 900   ;;
 901   --extra-cxxflags=*)
 902   ;;
 903   --extra-ldflags=*)
 904   ;;
 905   --enable-debug-info)
 906   ;;
 907   --disable-debug-info)
 908   ;;
 909   --cross-cc-*)
 910   ;;
 911   --enable-modules)
 912       modules="yes"
 913   ;;
 914   --disable-modules)
 915       modules="no"
 916   ;;
 917   --disable-module-upgrades) module_upgrades="no"
 918   ;;
 919   --enable-module-upgrades) module_upgrades="yes"
 920   ;;
 921   --cpu=*)
 922   ;;
 923   --target-list=*) target_list="$optarg"
 924                    if test "$target_list_exclude"; then
 925                        error_exit "Can't mix --target-list with --target-list-exclude"
 926                    fi
 927   ;;
 928   --target-list-exclude=*) target_list_exclude="$optarg"
 929                    if test "$target_list"; then
 930                        error_exit "Can't mix --target-list-exclude with --target-list"
 931                    fi
 932   ;;
 933   --enable-trace-backends=*) trace_backends="$optarg"
 934   ;;
 935   # XXX: backwards compatibility
 936   --enable-trace-backend=*) trace_backends="$optarg"
 937   ;;
 938   --with-trace-file=*) trace_file="$optarg"
 939   ;;
 940   --with-default-devices) default_devices="true"
 941   ;;
 942   --without-default-devices) default_devices="false"
 943   ;;
 944   --without-default-features) # processed above
 945   ;;
 946   --enable-gprof) gprof="yes"
 947   ;;
 948   --enable-gcov) gcov="yes"
 949   ;;
 950   --static)
 951     static="yes"
 952     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 953   ;;
 954   --mandir=*) mandir="$optarg"
 955   ;;
 956   --bindir=*) bindir="$optarg"
 957   ;;
 958   --libdir=*) libdir="$optarg"
 959   ;;
 960   --libexecdir=*) libexecdir="$optarg"
 961   ;;
 962   --includedir=*) includedir="$optarg"
 963   ;;
 964   --datadir=*) datadir="$optarg"
 965   ;;
 966   --with-suffix=*) qemu_suffix="$optarg"
 967   ;;
 968   --docdir=*) docdir="$optarg"
 969   ;;
 970   --localedir=*) localedir="$optarg"
 971   ;;
 972   --sysconfdir=*) sysconfdir="$optarg"
 973   ;;
 974   --localstatedir=*) local_statedir="$optarg"
 975   ;;
 976   --firmwarepath=*) firmwarepath="$optarg"
 977   ;;
 978   --host=*|--build=*|\
 979   --disable-dependency-tracking|\
 980   --sbindir=*|--sharedstatedir=*|\
 981   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 982   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 983     # These switches are silently ignored, for compatibility with
 984     # autoconf-generated configure scripts. This allows QEMU's
 985     # configure to be used by RPM and similar macros that set
 986     # lots of directory switches by default.
 987   ;;
 988   --disable-sdl) sdl="disabled"
 989   ;;
 990   --enable-sdl) sdl="enabled"
 991   ;;
 992   --disable-sdl-image) sdl_image="disabled"
 993   ;;
 994   --enable-sdl-image) sdl_image="enabled"
 995   ;;
 996   --disable-qom-cast-debug) qom_cast_debug="no"
 997   ;;
 998   --enable-qom-cast-debug) qom_cast_debug="yes"
 999   ;;
1000   --disable-virtfs) virtfs="disabled"
1001   ;;
1002   --enable-virtfs) virtfs="enabled"
1003   ;;
1004   --disable-libudev) libudev="disabled"
1005   ;;
1006   --enable-libudev) libudev="enabled"
1007   ;;
1008   --disable-virtiofsd) virtiofsd="disabled"
1009   ;;
1010   --enable-virtiofsd) virtiofsd="enabled"
1011   ;;
1012   --disable-mpath) mpath="disabled"
1013   ;;
1014   --enable-mpath) mpath="enabled"
1015   ;;
1016   --disable-vnc) vnc="disabled"
1017   ;;
1018   --enable-vnc) vnc="enabled"
1019   ;;
1020   --disable-gettext) gettext="disabled"
1021   ;;
1022   --enable-gettext) gettext="enabled"
1023   ;;
1024   --oss-lib=*) oss_lib="$optarg"
1025   ;;
1026   --audio-drv-list=*) audio_drv_list="$optarg"
1027   ;;
1028   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1029   ;;
1030   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1031   ;;
1032   --enable-debug-tcg) debug_tcg="yes"
1033   ;;
1034   --disable-debug-tcg) debug_tcg="no"
1035   ;;
1036   --enable-debug)
1037       # Enable debugging options that aren't excessively noisy
1038       debug_tcg="yes"
1039       debug_mutex="yes"
1040       debug="yes"
1041       strip_opt="no"
1042       fortify_source="no"
1043   ;;
1044   --enable-sanitizers) sanitizers="yes"
1045   ;;
1046   --disable-sanitizers) sanitizers="no"
1047   ;;
1048   --enable-tsan) tsan="yes"
1049   ;;
1050   --disable-tsan) tsan="no"
1051   ;;
1052   --enable-sparse) sparse="enabled"
1053   ;;
1054   --disable-sparse) sparse="disabled"
1055   ;;
1056   --disable-strip) strip_opt="no"
1057   ;;
1058   --disable-vnc-sasl) vnc_sasl="disabled"
1059   ;;
1060   --enable-vnc-sasl) vnc_sasl="enabled"
1061   ;;
1062   --disable-vnc-jpeg) vnc_jpeg="disabled"
1063   ;;
1064   --enable-vnc-jpeg) vnc_jpeg="enabled"
1065   ;;
1066   --disable-vnc-png) vnc_png="disabled"
1067   ;;
1068   --enable-vnc-png) vnc_png="enabled"
1069   ;;
1070   --disable-slirp) slirp="disabled"
1071   ;;
1072   --enable-slirp) slirp="enabled"
1073   ;;
1074   --enable-slirp=git) slirp="internal"
1075   ;;
1076   --enable-slirp=system) slirp="system"
1077   ;;
1078   --disable-vde) vde="no"
1079   ;;
1080   --enable-vde) vde="yes"
1081   ;;
1082   --disable-netmap) netmap="no"
1083   ;;
1084   --enable-netmap) netmap="yes"
1085   ;;
1086   --disable-xen) xen="disabled"
1087   ;;
1088   --enable-xen) xen="enabled"
1089   ;;
1090   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1091   ;;
1092   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1093   ;;
1094   --disable-brlapi) brlapi="disabled"
1095   ;;
1096   --enable-brlapi) brlapi="enabled"
1097   ;;
1098   --disable-kvm) kvm="disabled"
1099   ;;
1100   --enable-kvm) kvm="enabled"
1101   ;;
1102   --disable-hax) hax="disabled"
1103   ;;
1104   --enable-hax) hax="enabled"
1105   ;;
1106   --disable-hvf) hvf="disabled"
1107   ;;
1108   --enable-hvf) hvf="enabled"
1109   ;;
1110   --disable-whpx) whpx="disabled"
1111   ;;
1112   --enable-whpx) whpx="enabled"
1113   ;;
1114   --disable-tcg-interpreter) tcg_interpreter="false"
1115   ;;
1116   --enable-tcg-interpreter) tcg_interpreter="true"
1117   ;;
1118   --disable-cap-ng)  cap_ng="disabled"
1119   ;;
1120   --enable-cap-ng) cap_ng="enabled"
1121   ;;
1122   --disable-tcg) tcg="disabled"
1123   ;;
1124   --enable-tcg) tcg="enabled"
1125   ;;
1126   --disable-malloc-trim) malloc_trim="disabled"
1127   ;;
1128   --enable-malloc-trim) malloc_trim="enabled"
1129   ;;
1130   --disable-spice) spice="no"
1131   ;;
1132   --enable-spice) spice="yes"
1133   ;;
1134   --disable-libiscsi) libiscsi="disabled"
1135   ;;
1136   --enable-libiscsi) libiscsi="enabled"
1137   ;;
1138   --disable-libnfs) libnfs="disabled"
1139   ;;
1140   --enable-libnfs) libnfs="enabled"
1141   ;;
1142   --enable-profiler) profiler="yes"
1143   ;;
1144   --disable-cocoa) cocoa="disabled"
1145   ;;
1146   --enable-cocoa) cocoa="enabled"
1147   ;;
1148   --disable-system) softmmu="no"
1149   ;;
1150   --enable-system) softmmu="yes"
1151   ;;
1152   --disable-user)
1153       linux_user="no" ;
1154       bsd_user="no" ;
1155   ;;
1156   --enable-user) ;;
1157   --disable-linux-user) linux_user="no"
1158   ;;
1159   --enable-linux-user) linux_user="yes"
1160   ;;
1161   --disable-bsd-user) bsd_user="no"
1162   ;;
1163   --enable-bsd-user) bsd_user="yes"
1164   ;;
1165   --enable-pie) pie="yes"
1166   ;;
1167   --disable-pie) pie="no"
1168   ;;
1169   --enable-werror) werror="yes"
1170   ;;
1171   --disable-werror) werror="no"
1172   ;;
1173   --enable-lto) lto="true"
1174   ;;
1175   --disable-lto) lto="false"
1176   ;;
1177   --enable-stack-protector) stack_protector="yes"
1178   ;;
1179   --disable-stack-protector) stack_protector="no"
1180   ;;
1181   --enable-safe-stack) safe_stack="yes"
1182   ;;
1183   --disable-safe-stack) safe_stack="no"
1184   ;;
1185   --enable-cfi)
1186       cfi="true";
1187       lto="true";
1188   ;;
1189   --disable-cfi) cfi="false"
1190   ;;
1191   --enable-cfi-debug) cfi_debug="true"
1192   ;;
1193   --disable-cfi-debug) cfi_debug="false"
1194   ;;
1195   --disable-curses) curses="disabled"
1196   ;;
1197   --enable-curses) curses="enabled"
1198   ;;
1199   --disable-iconv) iconv="disabled"
1200   ;;
1201   --enable-iconv) iconv="enabled"
1202   ;;
1203   --disable-curl) curl="disabled"
1204   ;;
1205   --enable-curl) curl="enabled"
1206   ;;
1207   --disable-fdt) fdt="disabled"
1208   ;;
1209   --enable-fdt) fdt="enabled"
1210   ;;
1211   --enable-fdt=git) fdt="internal"
1212   ;;
1213   --enable-fdt=system) fdt="system"
1214   ;;
1215   --disable-linux-aio) linux_aio="no"
1216   ;;
1217   --enable-linux-aio) linux_aio="yes"
1218   ;;
1219   --disable-linux-io-uring) linux_io_uring="no"
1220   ;;
1221   --enable-linux-io-uring) linux_io_uring="yes"
1222   ;;
1223   --disable-attr) attr="disabled"
1224   ;;
1225   --enable-attr) attr="enabled"
1226   ;;
1227   --disable-membarrier) membarrier="no"
1228   ;;
1229   --enable-membarrier) membarrier="yes"
1230   ;;
1231   --disable-blobs) blobs="false"
1232   ;;
1233   --with-pkgversion=*) pkgversion="$optarg"
1234   ;;
1235   --with-coroutine=*) coroutine="$optarg"
1236   ;;
1237   --disable-coroutine-pool) coroutine_pool="no"
1238   ;;
1239   --enable-coroutine-pool) coroutine_pool="yes"
1240   ;;
1241   --enable-debug-stack-usage) debug_stack_usage="yes"
1242   ;;
1243   --enable-crypto-afalg) crypto_afalg="yes"
1244   ;;
1245   --disable-crypto-afalg) crypto_afalg="no"
1246   ;;
1247   --disable-docs) docs="disabled"
1248   ;;
1249   --enable-docs) docs="enabled"
1250   ;;
1251   --disable-vhost-net) vhost_net="no"
1252   ;;
1253   --enable-vhost-net) vhost_net="yes"
1254   ;;
1255   --disable-vhost-crypto) vhost_crypto="no"
1256   ;;
1257   --enable-vhost-crypto) vhost_crypto="yes"
1258   ;;
1259   --disable-vhost-scsi) vhost_scsi="no"
1260   ;;
1261   --enable-vhost-scsi) vhost_scsi="yes"
1262   ;;
1263   --disable-vhost-vsock) vhost_vsock="no"
1264   ;;
1265   --enable-vhost-vsock) vhost_vsock="yes"
1266   ;;
1267   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1268   ;;
1269   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1270   ;;
1271   --disable-vhost-user-fs) vhost_user_fs="no"
1272   ;;
1273   --enable-vhost-user-fs) vhost_user_fs="yes"
1274   ;;
1275   --disable-opengl) opengl="no"
1276   ;;
1277   --enable-opengl) opengl="yes"
1278   ;;
1279   --disable-rbd) rbd="disabled"
1280   ;;
1281   --enable-rbd) rbd="enabled"
1282   ;;
1283   --disable-xfsctl) xfs="no"
1284   ;;
1285   --enable-xfsctl) xfs="yes"
1286   ;;
1287   --disable-smartcard) smartcard="no"
1288   ;;
1289   --enable-smartcard) smartcard="yes"
1290   ;;
1291   --disable-u2f) u2f="disabled"
1292   ;;
1293   --enable-u2f) u2f="enabled"
1294   ;;
1295   --disable-libusb) libusb="no"
1296   ;;
1297   --enable-libusb) libusb="yes"
1298   ;;
1299   --disable-usb-redir) usb_redir="no"
1300   ;;
1301   --enable-usb-redir) usb_redir="yes"
1302   ;;
1303   --disable-zlib-test)
1304   ;;
1305   --disable-lzo) lzo="disabled"
1306   ;;
1307   --enable-lzo) lzo="enabled"
1308   ;;
1309   --disable-snappy) snappy="disabled"
1310   ;;
1311   --enable-snappy) snappy="enabled"
1312   ;;
1313   --disable-bzip2) bzip2="disabled"
1314   ;;
1315   --enable-bzip2) bzip2="enabled"
1316   ;;
1317   --enable-lzfse) lzfse="enabled"
1318   ;;
1319   --disable-lzfse) lzfse="disabled"
1320   ;;
1321   --disable-zstd) zstd="disabled"
1322   ;;
1323   --enable-zstd) zstd="enabled"
1324   ;;
1325   --enable-guest-agent) guest_agent="yes"
1326   ;;
1327   --disable-guest-agent) guest_agent="no"
1328   ;;
1329   --enable-guest-agent-msi) guest_agent_msi="enabled"
1330   ;;
1331   --disable-guest-agent-msi) guest_agent_msi="disabled"
1332   ;;
1333   --with-vss-sdk) vss_win32_sdk=""
1334   ;;
1335   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1336   ;;
1337   --without-vss-sdk) vss_win32_sdk="no"
1338   ;;
1339   --with-win-sdk) win_sdk=""
1340   ;;
1341   --with-win-sdk=*) win_sdk="$optarg"
1342   ;;
1343   --without-win-sdk) win_sdk="no"
1344   ;;
1345   --enable-tools) want_tools="yes"
1346   ;;
1347   --disable-tools) want_tools="no"
1348   ;;
1349   --enable-seccomp) seccomp="enabled"
1350   ;;
1351   --disable-seccomp) seccomp="disabled"
1352   ;;
1353   --disable-glusterfs) glusterfs="disabled"
1354   ;;
1355   --disable-avx2) avx2_opt="no"
1356   ;;
1357   --enable-avx2) avx2_opt="yes"
1358   ;;
1359   --disable-avx512f) avx512f_opt="no"
1360   ;;
1361   --enable-avx512f) avx512f_opt="yes"
1362   ;;
1363
1364   --enable-glusterfs) glusterfs="enabled"
1365   ;;
1366   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1367       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1368   ;;
1369   --enable-vhdx|--disable-vhdx)
1370       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1371   ;;
1372   --enable-uuid|--disable-uuid)
1373       echo "$0: $opt is obsolete, UUID support is always built" >&2
1374   ;;
1375   --disable-gtk) gtk="disabled"
1376   ;;
1377   --enable-gtk) gtk="enabled"
1378   ;;
1379   --tls-priority=*) tls_priority="$optarg"
1380   ;;
1381   --disable-gnutls) gnutls="no"
1382   ;;
1383   --enable-gnutls) gnutls="yes"
1384   ;;
1385   --disable-nettle) nettle="no"
1386   ;;
1387   --enable-nettle) nettle="yes"
1388   ;;
1389   --disable-gcrypt) gcrypt="no"
1390   ;;
1391   --enable-gcrypt) gcrypt="yes"
1392   ;;
1393   --disable-auth-pam) auth_pam="no"
1394   ;;
1395   --enable-auth-pam) auth_pam="yes"
1396   ;;
1397   --enable-rdma) rdma="yes"
1398   ;;
1399   --disable-rdma) rdma="no"
1400   ;;
1401   --enable-pvrdma) pvrdma="yes"
1402   ;;
1403   --disable-pvrdma) pvrdma="no"
1404   ;;
1405   --disable-vte) vte="no"
1406   ;;
1407   --enable-vte) vte="yes"
1408   ;;
1409   --disable-virglrenderer) virglrenderer="no"
1410   ;;
1411   --enable-virglrenderer) virglrenderer="yes"
1412   ;;
1413   --disable-tpm) tpm="no"
1414   ;;
1415   --enable-tpm) tpm="yes"
1416   ;;
1417   --disable-libssh) libssh="no"
1418   ;;
1419   --enable-libssh) libssh="yes"
1420   ;;
1421   --disable-live-block-migration) live_block_migration="no"
1422   ;;
1423   --enable-live-block-migration) live_block_migration="yes"
1424   ;;
1425   --disable-numa) numa="no"
1426   ;;
1427   --enable-numa) numa="yes"
1428   ;;
1429   --disable-libxml2) libxml2="no"
1430   ;;
1431   --enable-libxml2) libxml2="yes"
1432   ;;
1433   --disable-tcmalloc) tcmalloc="no"
1434   ;;
1435   --enable-tcmalloc) tcmalloc="yes"
1436   ;;
1437   --disable-jemalloc) jemalloc="no"
1438   ;;
1439   --enable-jemalloc) jemalloc="yes"
1440   ;;
1441   --disable-replication) replication="no"
1442   ;;
1443   --enable-replication) replication="yes"
1444   ;;
1445   --disable-bochs) bochs="no"
1446   ;;
1447   --enable-bochs) bochs="yes"
1448   ;;
1449   --disable-cloop) cloop="no"
1450   ;;
1451   --enable-cloop) cloop="yes"
1452   ;;
1453   --disable-dmg) dmg="no"
1454   ;;
1455   --enable-dmg) dmg="yes"
1456   ;;
1457   --disable-qcow1) qcow1="no"
1458   ;;
1459   --enable-qcow1) qcow1="yes"
1460   ;;
1461   --disable-vdi) vdi="no"
1462   ;;
1463   --enable-vdi) vdi="yes"
1464   ;;
1465   --disable-vvfat) vvfat="no"
1466   ;;
1467   --enable-vvfat) vvfat="yes"
1468   ;;
1469   --disable-qed) qed="no"
1470   ;;
1471   --enable-qed) qed="yes"
1472   ;;
1473   --disable-parallels) parallels="no"
1474   ;;
1475   --enable-parallels) parallels="yes"
1476   ;;
1477   --disable-sheepdog) sheepdog="no"
1478   ;;
1479   --enable-sheepdog) sheepdog="yes"
1480   ;;
1481   --disable-vhost-user) vhost_user="no"
1482   ;;
1483   --enable-vhost-user) vhost_user="yes"
1484   ;;
1485   --disable-vhost-vdpa) vhost_vdpa="no"
1486   ;;
1487   --enable-vhost-vdpa) vhost_vdpa="yes"
1488   ;;
1489   --disable-vhost-kernel) vhost_kernel="no"
1490   ;;
1491   --enable-vhost-kernel) vhost_kernel="yes"
1492   ;;
1493   --disable-capstone) capstone="disabled"
1494   ;;
1495   --enable-capstone) capstone="enabled"
1496   ;;
1497   --enable-capstone=git) capstone="internal"
1498   ;;
1499   --enable-capstone=system) capstone="system"
1500   ;;
1501   --with-git=*) git="$optarg"
1502   ;;
1503   --enable-git-update)
1504       git_submodules_action="update"
1505       echo "--enable-git-update deprecated, use --with-git-submodules=update"
1506   ;;
1507   --disable-git-update)
1508       git_submodules_action="validate"
1509       echo "--disable-git-update deprecated, use --with-git-submodules=validate"
1510   ;;
1511   --with-git-submodules=*)
1512       git_submodules_action="$optarg"
1513   ;;
1514   --enable-debug-mutex) debug_mutex=yes
1515   ;;
1516   --disable-debug-mutex) debug_mutex=no
1517   ;;
1518   --enable-libpmem) libpmem=yes
1519   ;;
1520   --disable-libpmem) libpmem=no
1521   ;;
1522   --enable-xkbcommon) xkbcommon="enabled"
1523   ;;
1524   --disable-xkbcommon) xkbcommon="disabled"
1525   ;;
1526   --enable-plugins) plugins="yes"
1527   ;;
1528   --disable-plugins) plugins="no"
1529   ;;
1530   --enable-containers) use_containers="yes"
1531   ;;
1532   --disable-containers) use_containers="no"
1533   ;;
1534   --enable-fuzzing) fuzzing=yes
1535   ;;
1536   --disable-fuzzing) fuzzing=no
1537   ;;
1538   --gdb=*) gdb_bin="$optarg"
1539   ;;
1540   --enable-rng-none) rng_none=yes
1541   ;;
1542   --disable-rng-none) rng_none=no
1543   ;;
1544   --enable-keyring) secret_keyring="yes"
1545   ;;
1546   --disable-keyring) secret_keyring="no"
1547   ;;
1548   --enable-libdaxctl) libdaxctl=yes
1549   ;;
1550   --disable-libdaxctl) libdaxctl=no
1551   ;;
1552   --enable-fuse) fuse="enabled"
1553   ;;
1554   --disable-fuse) fuse="disabled"
1555   ;;
1556   --enable-fuse-lseek) fuse_lseek="enabled"
1557   ;;
1558   --disable-fuse-lseek) fuse_lseek="disabled"
1559   ;;
1560   --enable-multiprocess) multiprocess="enabled"
1561   ;;
1562   --disable-multiprocess) multiprocess="disabled"
1563   ;;
1564   --enable-gio) gio=yes
1565   ;;
1566   --disable-gio) gio=no
1567   ;;
1568   *)
1569       echo "ERROR: unknown option $opt"
1570       echo "Try '$0 --help' for more information"
1571       exit 1
1572   ;;
1573   esac
1574 done
1575
1576 case $git_submodules_action in
1577     update|validate)
1578         if test ! -e "$source_path/.git"; then
1579             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1580             exit 1
1581         fi
1582     ;;
1583     ignore)
1584     ;;
1585     *)
1586         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1587         exit 1
1588     ;;
1589 esac
1590
1591 libdir="${libdir:-$prefix/lib}"
1592 libexecdir="${libexecdir:-$prefix/libexec}"
1593 includedir="${includedir:-$prefix/include}"
1594
1595 if test "$mingw32" = "yes" ; then
1596     bindir="${bindir:-$prefix}"
1597 else
1598     bindir="${bindir:-$prefix/bin}"
1599 fi
1600 mandir="${mandir:-$prefix/share/man}"
1601 datadir="${datadir:-$prefix/share}"
1602 docdir="${docdir:-$prefix/share/doc}"
1603 sysconfdir="${sysconfdir:-$prefix/etc}"
1604 local_statedir="${local_statedir:-$prefix/var}"
1605 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1606 localedir="${localedir:-$datadir/locale}"
1607
1608 case "$cpu" in
1609     ppc)
1610            CPU_CFLAGS="-m32"
1611            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1612            ;;
1613     ppc64)
1614            CPU_CFLAGS="-m64"
1615            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1616            ;;
1617     sparc)
1618            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1619            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1620            ;;
1621     sparc64)
1622            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1623            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1624            ;;
1625     s390)
1626            CPU_CFLAGS="-m31"
1627            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1628            ;;
1629     s390x)
1630            CPU_CFLAGS="-m64"
1631            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1632            ;;
1633     i386)
1634            CPU_CFLAGS="-m32"
1635            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1636            ;;
1637     x86_64)
1638            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1639            # If we truly care, we should simply detect this case at
1640            # runtime and generate the fallback to serial emulation.
1641            CPU_CFLAGS="-m64 -mcx16"
1642            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1643            ;;
1644     x32)
1645            CPU_CFLAGS="-mx32"
1646            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1647            ;;
1648     # No special flags required for other host CPUs
1649 esac
1650
1651 eval "cross_cc_${cpu}=\$host_cc"
1652 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1653 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1654
1655 # For user-mode emulation the host arch has to be one we explicitly
1656 # support, even if we're using TCI.
1657 if [ "$ARCH" = "unknown" ]; then
1658   bsd_user="no"
1659   linux_user="no"
1660 fi
1661
1662 default_target_list=""
1663 deprecated_targets_list=ppc64abi32-linux-user,lm32-softmmu,unicore32-softmmu
1664 deprecated_features=""
1665 mak_wilds=""
1666
1667 if [ "$softmmu" = "yes" ]; then
1668     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1669 fi
1670 if [ "$linux_user" = "yes" ]; then
1671     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1672 fi
1673 if [ "$bsd_user" = "yes" ]; then
1674     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1675 fi
1676
1677 # If the user doesn't explicitly specify a deprecated target we will
1678 # skip it.
1679 if test -z "$target_list"; then
1680     if test -z "$target_list_exclude"; then
1681         target_list_exclude="$deprecated_targets_list"
1682     else
1683         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1684     fi
1685 fi
1686
1687 for config in $mak_wilds; do
1688     target="$(basename "$config" .mak)"
1689     if echo "$target_list_exclude" | grep -vq "$target"; then
1690         default_target_list="${default_target_list} $target"
1691     fi
1692 done
1693
1694 # Enumerate public trace backends for --help output
1695 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1696
1697 if test x"$show_help" = x"yes" ; then
1698 cat << EOF
1699
1700 Usage: configure [options]
1701 Options: [defaults in brackets after descriptions]
1702
1703 Standard options:
1704   --help                   print this message
1705   --prefix=PREFIX          install in PREFIX [$prefix]
1706   --interp-prefix=PREFIX   where to find shared libraries, etc.
1707                            use %M for cpu name [$interp_prefix]
1708   --target-list=LIST       set target list (default: build all non-deprecated)
1709 $(echo Available targets: $default_target_list | \
1710   fold -s -w 53 | sed -e 's/^/                           /')
1711 $(echo Deprecated targets: $deprecated_targets_list | \
1712   fold -s -w 53 | sed -e 's/^/                           /')
1713   --target-list-exclude=LIST exclude a set of targets from the default target-list
1714
1715 Advanced options (experts only):
1716   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1717   --cc=CC                  use C compiler CC [$cc]
1718   --iasl=IASL              use ACPI compiler IASL [$iasl]
1719   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1720                            build time
1721   --cxx=CXX                use C++ compiler CXX [$cxx]
1722   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1723   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1724   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1725   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1726   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1727   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1728   --make=MAKE              use specified make [$make]
1729   --python=PYTHON          use specified python [$python]
1730   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1731   --meson=MESON            use specified meson [$meson]
1732   --ninja=NINJA            use specified ninja [$ninja]
1733   --smbd=SMBD              use specified smbd [$smbd]
1734   --with-git=GIT           use specified git [$git]
1735   --with-git-submodules=update   update git submodules (default if .git dir exists)
1736   --with-git-submodules=validate fail if git submodules are not up to date
1737   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1738   --static                 enable static build [$static]
1739   --mandir=PATH            install man pages in PATH
1740   --datadir=PATH           install firmware in PATH/$qemu_suffix
1741   --localedir=PATH         install translation in PATH/$qemu_suffix
1742   --docdir=PATH            install documentation in PATH/$qemu_suffix
1743   --bindir=PATH            install binaries in PATH
1744   --libdir=PATH            install libraries in PATH
1745   --libexecdir=PATH        install helper binaries in PATH
1746   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1747   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1748   --firmwarepath=PATH      search PATH for firmware files
1749   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1750   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1751   --with-pkgversion=VERS   use specified string as sub-version of the package
1752   --without-default-features default all --enable-* options to "disabled"
1753   --without-default-devices  do not include any device that is not needed to
1754                            start the emulator (only use if you are including
1755                            desired devices in default-configs/devices/)
1756   --enable-debug           enable common debug build options
1757   --enable-sanitizers      enable default sanitizers
1758   --enable-tsan            enable thread sanitizer
1759   --disable-strip          disable stripping binaries
1760   --disable-werror         disable compilation abort on warning
1761   --disable-stack-protector disable compiler-provided stack protection
1762   --audio-drv-list=LIST    set audio drivers list:
1763                            Available drivers: $audio_possible_drivers
1764   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1765   --block-drv-rw-whitelist=L
1766                            set block driver read-write whitelist
1767                            (affects only QEMU, not qemu-img)
1768   --block-drv-ro-whitelist=L
1769                            set block driver read-only whitelist
1770                            (affects only QEMU, not qemu-img)
1771   --enable-trace-backends=B Set trace backend
1772                            Available backends: $trace_backend_list
1773   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1774                            Default:trace-<pid>
1775   --disable-slirp          disable SLIRP userspace network connectivity
1776   --enable-tcg-interpreter enable TCI (TCG with bytecode interpreter, experimental and slow)
1777   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1778   --oss-lib                path to OSS library
1779   --cpu=CPU                Build for host CPU [$cpu]
1780   --with-coroutine=BACKEND coroutine backend. Supported options:
1781                            ucontext, sigaltstack, windows
1782   --enable-gcov            enable test coverage analysis with gcov
1783   --disable-blobs          disable installing provided firmware blobs
1784   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1785   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1786   --tls-priority           default TLS protocol/cipher priority string
1787   --enable-gprof           QEMU profiling with gprof
1788   --enable-profiler        profiler support
1789   --enable-debug-stack-usage
1790                            track the maximum stack usage of stacks created by qemu_alloc_stack
1791   --enable-plugins
1792                            enable plugins via shared library loading
1793   --disable-containers     don't use containers for cross-building
1794   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1795
1796 Optional features, enabled with --enable-FEATURE and
1797 disabled with --disable-FEATURE, default is enabled if available
1798 (unless built with --without-default-features):
1799
1800   system          all system emulation targets
1801   user            supported user emulation targets
1802   linux-user      all linux usermode emulation targets
1803   bsd-user        all BSD usermode emulation targets
1804   docs            build documentation
1805   guest-agent     build the QEMU Guest Agent
1806   guest-agent-msi build guest agent Windows MSI installation package
1807   pie             Position Independent Executables
1808   modules         modules support (non-Windows)
1809   module-upgrades try to load modules from alternate paths for upgrades
1810   debug-tcg       TCG debugging (default is disabled)
1811   debug-info      debugging information
1812   lto             Enable Link-Time Optimization.
1813   sparse          sparse checker
1814   safe-stack      SafeStack Stack Smash Protection. Depends on
1815                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1816   cfi             Enable Control-Flow Integrity for indirect function calls.
1817                   In case of a cfi violation, QEMU is terminated with SIGILL
1818                   Depends on lto and is incompatible with modules
1819                   Automatically enables Link-Time Optimization (lto)
1820   cfi-debug       In case of a cfi violation, a message containing the line that
1821                   triggered the error is written to stderr. After the error,
1822                   QEMU is still terminated with SIGILL
1823   gnutls          GNUTLS cryptography support
1824   nettle          nettle cryptography support
1825   gcrypt          libgcrypt cryptography support
1826   auth-pam        PAM access control
1827   sdl             SDL UI
1828   sdl-image       SDL Image support for icons
1829   gtk             gtk UI
1830   vte             vte support for the gtk UI
1831   curses          curses UI
1832   iconv           font glyph conversion support
1833   vnc             VNC UI support
1834   vnc-sasl        SASL encryption for VNC server
1835   vnc-jpeg        JPEG lossy compression for VNC server
1836   vnc-png         PNG compression for VNC server
1837   cocoa           Cocoa UI (Mac OS X only)
1838   virtfs          VirtFS
1839   virtiofsd       build virtiofs daemon (virtiofsd)
1840   libudev         Use libudev to enumerate host devices
1841   mpath           Multipath persistent reservation passthrough
1842   xen             xen backend driver support
1843   xen-pci-passthrough    PCI passthrough support for Xen
1844   brlapi          BrlAPI (Braile)
1845   curl            curl connectivity
1846   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1847   fdt             fdt device tree
1848   kvm             KVM acceleration support
1849   hax             HAX acceleration support
1850   hvf             Hypervisor.framework acceleration support
1851   whpx            Windows Hypervisor Platform acceleration support
1852   rdma            Enable RDMA-based migration
1853   pvrdma          Enable PVRDMA support
1854   vde             support for vde network
1855   netmap          support for netmap network
1856   linux-aio       Linux AIO support
1857   linux-io-uring  Linux io_uring support
1858   cap-ng          libcap-ng support
1859   attr            attr and xattr support
1860   vhost-net       vhost-net kernel acceleration support
1861   vhost-vsock     virtio sockets device support
1862   vhost-scsi      vhost-scsi kernel target support
1863   vhost-crypto    vhost-user-crypto backend support
1864   vhost-kernel    vhost kernel backend support
1865   vhost-user      vhost-user backend support
1866   vhost-user-blk-server    vhost-user-blk server support
1867   vhost-vdpa      vhost-vdpa kernel backend support
1868   spice           spice
1869   rbd             rados block device (rbd)
1870   libiscsi        iscsi support
1871   libnfs          nfs support
1872   smartcard       smartcard support (libcacard)
1873   u2f             U2F support (u2f-emu)
1874   libusb          libusb (for usb passthrough)
1875   live-block-migration   Block migration in the main migration stream
1876   usb-redir       usb network redirection support
1877   lzo             support of lzo compression library
1878   snappy          support of snappy compression library
1879   bzip2           support of bzip2 compression library
1880                   (for reading bzip2-compressed dmg images)
1881   lzfse           support of lzfse compression library
1882                   (for reading lzfse-compressed dmg images)
1883   zstd            support for zstd compression library
1884                   (for migration compression and qcow2 cluster compression)
1885   seccomp         seccomp support
1886   coroutine-pool  coroutine freelist (better performance)
1887   glusterfs       GlusterFS backend
1888   tpm             TPM support
1889   libssh          ssh block device support
1890   numa            libnuma support
1891   libxml2         for Parallels image format
1892   tcmalloc        tcmalloc support
1893   jemalloc        jemalloc support
1894   avx2            AVX2 optimization support
1895   avx512f         AVX512F optimization support
1896   replication     replication support
1897   opengl          opengl support
1898   virglrenderer   virgl rendering support
1899   xfsctl          xfsctl support
1900   qom-cast-debug  cast debugging support
1901   tools           build qemu-io, qemu-nbd and qemu-img tools
1902   bochs           bochs image format support
1903   cloop           cloop image format support
1904   dmg             dmg image format support
1905   qcow1           qcow v1 image format support
1906   vdi             vdi image format support
1907   vvfat           vvfat image format support
1908   qed             qed image format support
1909   parallels       parallels image format support
1910   sheepdog        sheepdog block driver support (deprecated)
1911   crypto-afalg    Linux AF_ALG crypto backend driver
1912   capstone        capstone disassembler support
1913   debug-mutex     mutex debugging support
1914   libpmem         libpmem support
1915   xkbcommon       xkbcommon support
1916   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1917   libdaxctl       libdaxctl support
1918   fuse            FUSE block device export
1919   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1920   multiprocess    Out of process device emulation support
1921   gio             libgio support
1922
1923 NOTE: The object files are built at the place where configure is launched
1924 EOF
1925 exit 0
1926 fi
1927
1928 # Remove old dependency files to make sure that they get properly regenerated
1929 rm -f */config-devices.mak.d
1930
1931 if test -z "$python"
1932 then
1933     error_exit "Python not found. Use --python=/path/to/python"
1934 fi
1935 if ! has "$make"
1936 then
1937     error_exit "GNU make ($make) not found"
1938 fi
1939
1940 # Note that if the Python conditional here evaluates True we will exit
1941 # with status 1 which is a shell 'false' value.
1942 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1943   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1944       "Use --python=/path/to/python to specify a supported Python."
1945 fi
1946
1947 # Preserve python version since some functionality is dependent on it
1948 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)
1949
1950 # Suppress writing compiled files
1951 python="$python -B"
1952
1953 if test -z "$meson"; then
1954     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1955         meson=meson
1956     elif test $git_submodules_action != 'ignore' ; then
1957         meson=git
1958     elif test -e "${source_path}/meson/meson.py" ; then
1959         meson=internal
1960     else
1961         if test "$explicit_python" = yes; then
1962             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1963         else
1964             error_exit "Meson not found.  Use --meson=/path/to/meson"
1965         fi
1966     fi
1967 else
1968     # Meson uses its own Python interpreter to invoke other Python scripts,
1969     # but the user wants to use the one they specified with --python.
1970     #
1971     # We do not want to override the distro Python interpreter (and sometimes
1972     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1973     # just require --meson=git|internal together with --python.
1974     if test "$explicit_python" = yes; then
1975         case "$meson" in
1976             git | internal) ;;
1977             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1978         esac
1979     fi
1980 fi
1981
1982 if test "$meson" = git; then
1983     git_submodules="${git_submodules} meson"
1984 fi
1985
1986 case "$meson" in
1987     git | internal)
1988         meson="$python ${source_path}/meson/meson.py"
1989         ;;
1990     *) meson=$(command -v "$meson") ;;
1991 esac
1992
1993 # Probe for ninja
1994
1995 if test -z "$ninja"; then
1996     for c in ninja ninja-build samu; do
1997         if has $c; then
1998             ninja=$(command -v "$c")
1999             break
2000         fi
2001     done
2002     if test -z "$ninja"; then
2003       error_exit "Cannot find Ninja"
2004     fi
2005 fi
2006
2007 # Check that the C compiler works. Doing this here before testing
2008 # the host CPU ensures that we had a valid CC to autodetect the
2009 # $cpu var (and we should bail right here if that's not the case).
2010 # It also allows the help message to be printed without a CC.
2011 write_c_skeleton;
2012 if compile_object ; then
2013   : C compiler works ok
2014 else
2015     error_exit "\"$cc\" either does not exist or does not work"
2016 fi
2017 if ! compile_prog ; then
2018     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2019 fi
2020
2021 # Consult white-list to determine whether to enable werror
2022 # by default.  Only enable by default for git builds
2023 if test -z "$werror" ; then
2024     if test "$git_submodules_action" != "ignore" && \
2025         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2026         werror="yes"
2027     else
2028         werror="no"
2029     fi
2030 fi
2031
2032 if test "$targetos" = "bogus"; then
2033     # Now that we know that we're not printing the help and that
2034     # the compiler works (so the results of the check_defines we used
2035     # to identify the OS are reliable), if we didn't recognize the
2036     # host OS we should stop now.
2037     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2038 fi
2039
2040 # Check whether the compiler matches our minimum requirements:
2041 cat > $TMPC << EOF
2042 #if defined(__clang_major__) && defined(__clang_minor__)
2043 # ifdef __apple_build_version__
2044 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2045 #   error You need at least XCode Clang v5.1 to compile QEMU
2046 #  endif
2047 # else
2048 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2049 #   error You need at least Clang v3.4 to compile QEMU
2050 #  endif
2051 # endif
2052 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2053 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2054 #  error You need at least GCC v4.8 to compile QEMU
2055 # endif
2056 #else
2057 # error You either need GCC or Clang to compiler QEMU
2058 #endif
2059 int main (void) { return 0; }
2060 EOF
2061 if ! compile_prog "" "" ; then
2062     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2063 fi
2064
2065 # Accumulate -Wfoo and -Wno-bar separately.
2066 # We will list all of the enable flags first, and the disable flags second.
2067 # Note that we do not add -Werror, because that would enable it for all
2068 # configure tests. If a configure test failed due to -Werror this would
2069 # just silently disable some features, so it's too error prone.
2070
2071 warn_flags=
2072 add_to warn_flags -Wold-style-declaration
2073 add_to warn_flags -Wold-style-definition
2074 add_to warn_flags -Wtype-limits
2075 add_to warn_flags -Wformat-security
2076 add_to warn_flags -Wformat-y2k
2077 add_to warn_flags -Winit-self
2078 add_to warn_flags -Wignored-qualifiers
2079 add_to warn_flags -Wempty-body
2080 add_to warn_flags -Wnested-externs
2081 add_to warn_flags -Wendif-labels
2082 add_to warn_flags -Wexpansion-to-defined
2083 add_to warn_flags -Wimplicit-fallthrough=2
2084
2085 nowarn_flags=
2086 add_to nowarn_flags -Wno-initializer-overrides
2087 add_to nowarn_flags -Wno-missing-include-dirs
2088 add_to nowarn_flags -Wno-shift-negative-value
2089 add_to nowarn_flags -Wno-string-plus-int
2090 add_to nowarn_flags -Wno-typedef-redefinition
2091 add_to nowarn_flags -Wno-tautological-type-limit-compare
2092 add_to nowarn_flags -Wno-psabi
2093
2094 gcc_flags="$warn_flags $nowarn_flags"
2095
2096 cc_has_warning_flag() {
2097     write_c_skeleton;
2098
2099     # Use the positive sense of the flag when testing for -Wno-wombat
2100     # support (gcc will happily accept the -Wno- form of unknown
2101     # warning options).
2102     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2103     compile_prog "-Werror $optflag" ""
2104 }
2105
2106 for flag in $gcc_flags; do
2107     if cc_has_warning_flag $flag ; then
2108         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2109     fi
2110 done
2111
2112 if test "$stack_protector" != "no"; then
2113   cat > $TMPC << EOF
2114 int main(int argc, char *argv[])
2115 {
2116     char arr[64], *p = arr, *c = argv[0];
2117     while (*c) {
2118         *p++ = *c++;
2119     }
2120     return 0;
2121 }
2122 EOF
2123   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2124   sp_on=0
2125   for flag in $gcc_flags; do
2126     # We need to check both a compile and a link, since some compiler
2127     # setups fail only on a .c->.o compile and some only at link time
2128     if compile_object "-Werror $flag" &&
2129        compile_prog "-Werror $flag" ""; then
2130       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2131       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2132       sp_on=1
2133       break
2134     fi
2135   done
2136   if test "$stack_protector" = yes; then
2137     if test $sp_on = 0; then
2138       error_exit "Stack protector not supported"
2139     fi
2140   fi
2141 fi
2142
2143 # Disable -Wmissing-braces on older compilers that warn even for
2144 # the "universal" C zero initializer {0}.
2145 cat > $TMPC << EOF
2146 struct {
2147   int a[2];
2148 } x = {0};
2149 EOF
2150 if compile_object "-Werror" "" ; then
2151   :
2152 else
2153   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2154 fi
2155
2156 # Our module code doesn't support Windows
2157 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2158   error_exit "Modules are not available for Windows"
2159 fi
2160
2161 # module_upgrades is only reasonable if modules are enabled
2162 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2163   error_exit "Can't enable module-upgrades as Modules are not enabled"
2164 fi
2165
2166 # Static linking is not possible with modules or PIE
2167 if test "$static" = "yes" ; then
2168   if test "$modules" = "yes" ; then
2169     error_exit "static and modules are mutually incompatible"
2170   fi
2171 fi
2172
2173 # Unconditional check for compiler __thread support
2174   cat > $TMPC << EOF
2175 static __thread int tls_var;
2176 int main(void) { return tls_var; }
2177 EOF
2178
2179 if ! compile_prog "-Werror" "" ; then
2180     error_exit "Your compiler does not support the __thread specifier for " \
2181         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2182 fi
2183
2184 cat > $TMPC << EOF
2185
2186 #ifdef __linux__
2187 #  define THREAD __thread
2188 #else
2189 #  define THREAD
2190 #endif
2191 static THREAD int tls_var;
2192 int main(void) { return tls_var; }
2193 EOF
2194
2195 # Check we support --no-pie first; we will need this for building ROMs.
2196 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2197   CFLAGS_NOPIE="-fno-pie"
2198 fi
2199
2200 if test "$static" = "yes"; then
2201   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2202     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2203     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2204     pie="yes"
2205   elif test "$pie" = "yes"; then
2206     error_exit "-static-pie not available due to missing toolchain support"
2207   else
2208     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2209     pie="no"
2210   fi
2211 elif test "$pie" = "no"; then
2212   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2213 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2214   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2215   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2216   pie="yes"
2217 elif test "$pie" = "yes"; then
2218   error_exit "PIE not available due to missing toolchain support"
2219 else
2220   echo "Disabling PIE due to missing toolchain support"
2221   pie="no"
2222 fi
2223
2224 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2225 # The combination is known as "full relro", because .got.plt is read-only too.
2226 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2227   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2228 fi
2229
2230 ##########################################
2231 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2232 # use i686 as default anyway, but for those that don't, an explicit
2233 # specification is necessary
2234
2235 if test "$cpu" = "i386"; then
2236   cat > $TMPC << EOF
2237 static int sfaa(int *ptr)
2238 {
2239   return __sync_fetch_and_and(ptr, 0);
2240 }
2241
2242 int main(void)
2243 {
2244   int val = 42;
2245   val = __sync_val_compare_and_swap(&val, 0, 1);
2246   sfaa(&val);
2247   return val;
2248 }
2249 EOF
2250   if ! compile_prog "" "" ; then
2251     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2252   fi
2253 fi
2254
2255 #########################################
2256 # Solaris specific configure tool chain decisions
2257
2258 if test "$solaris" = "yes" ; then
2259   if has ar; then
2260     :
2261   else
2262     if test -f /usr/ccs/bin/ar ; then
2263       error_exit "No path includes ar" \
2264           "Add /usr/ccs/bin to your path and rerun configure"
2265     fi
2266     error_exit "No path includes ar"
2267   fi
2268 fi
2269
2270 if test -z "${target_list+xxx}" ; then
2271     default_targets=yes
2272     for target in $default_target_list; do
2273         target_list="$target_list $target"
2274     done
2275     target_list="${target_list# }"
2276 else
2277     default_targets=no
2278     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2279     for target in $target_list; do
2280         # Check that we recognised the target name; this allows a more
2281         # friendly error message than if we let it fall through.
2282         case " $default_target_list " in
2283             *" $target "*)
2284                 ;;
2285             *)
2286                 error_exit "Unknown target name '$target'"
2287                 ;;
2288         esac
2289     done
2290 fi
2291
2292 for target in $target_list; do
2293     # if a deprecated target is enabled we note it here
2294     if echo "$deprecated_targets_list" | grep -q "$target"; then
2295         add_to deprecated_features $target
2296     fi
2297 done
2298
2299 # see if system emulation was really requested
2300 case " $target_list " in
2301   *"-softmmu "*) softmmu=yes
2302   ;;
2303   *) softmmu=no
2304   ;;
2305 esac
2306
2307 feature_not_found() {
2308   feature=$1
2309   remedy=$2
2310
2311   error_exit "User requested feature $feature" \
2312       "configure was not able to find it." \
2313       "$remedy"
2314 }
2315
2316 # ---
2317 # big/little endian test
2318 cat > $TMPC << EOF
2319 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2320 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2321 extern int foo(short *, short *);
2322 int main(int argc, char *argv[]) {
2323     return foo(big_endian, little_endian);
2324 }
2325 EOF
2326
2327 if compile_object ; then
2328     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2329         bigendian="yes"
2330     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2331         bigendian="no"
2332     else
2333         echo big/little test failed
2334     fi
2335 else
2336     echo big/little test failed
2337 fi
2338
2339 ##########################################
2340 # system tools
2341 if test -z "$want_tools"; then
2342     if test "$softmmu" = "no"; then
2343         want_tools=no
2344     else
2345         want_tools=yes
2346     fi
2347 fi
2348
2349 ##########################################
2350 # Disable features only meaningful for system-mode emulation
2351 if test "$softmmu" = "no"; then
2352     audio_drv_list=""
2353 fi
2354
2355 ##########################################
2356 # Some versions of Mac OS X incorrectly define SIZE_MAX
2357 cat > $TMPC << EOF
2358 #include <stdint.h>
2359 #include <stdio.h>
2360 int main(int argc, char *argv[]) {
2361     return printf("%zu", SIZE_MAX);
2362 }
2363 EOF
2364 have_broken_size_max=no
2365 if ! compile_object -Werror ; then
2366     have_broken_size_max=yes
2367 fi
2368
2369 ##########################################
2370 # L2TPV3 probe
2371
2372 cat > $TMPC <<EOF
2373 #include <sys/socket.h>
2374 #include <linux/ip.h>
2375 int main(void) { return sizeof(struct mmsghdr); }
2376 EOF
2377 if compile_prog "" "" ; then
2378   l2tpv3=yes
2379 else
2380   l2tpv3=no
2381 fi
2382
2383 cat > $TMPC <<EOF
2384 #include <sys/mman.h>
2385 int main(int argc, char *argv[]) {
2386     return mlockall(MCL_FUTURE);
2387 }
2388 EOF
2389 if compile_prog "" "" ; then
2390   have_mlockall=yes
2391 else
2392   have_mlockall=no
2393 fi
2394
2395 #########################################
2396 # vhost interdependencies and host support
2397
2398 # vhost backends
2399 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2400   error_exit "vhost-user is only available on Linux"
2401 fi
2402 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2403 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2404   error_exit "vhost-vdpa is only available on Linux"
2405 fi
2406 test "$vhost_kernel" = "" && vhost_kernel=$linux
2407 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2408   error_exit "vhost-kernel is only available on Linux"
2409 fi
2410
2411 # vhost-kernel devices
2412 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2413 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2414   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2415 fi
2416 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2417 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2418   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2419 fi
2420
2421 # vhost-user backends
2422 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2423 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2424   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2425 fi
2426 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2427 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2428   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2429 fi
2430 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2431 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2432   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2433 fi
2434 #vhost-vdpa backends
2435 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2436 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2437   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2438 fi
2439
2440 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2441 if test "$vhost_net" = ""; then
2442   test "$vhost_net_user" = "yes" && vhost_net=yes
2443   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2444   test "$vhost_kernel" = "yes" && vhost_net=yes
2445 fi
2446
2447 ##########################################
2448 # pkg-config probe
2449
2450 if ! has "$pkg_config_exe"; then
2451   error_exit "pkg-config binary '$pkg_config_exe' not found"
2452 fi
2453
2454 ##########################################
2455 # NPTL probe
2456
2457 if test "$linux_user" = "yes"; then
2458   cat > $TMPC <<EOF
2459 #include <sched.h>
2460 #include <linux/futex.h>
2461 int main(void) {
2462 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2463 #error bork
2464 #endif
2465   return 0;
2466 }
2467 EOF
2468   if ! compile_object ; then
2469     feature_not_found "nptl" "Install glibc and linux kernel headers."
2470   fi
2471 fi
2472
2473 ##########################################
2474 # xen probe
2475
2476 if test "$xen" != "disabled" ; then
2477   # Check whether Xen library path is specified via --extra-ldflags to avoid
2478   # overriding this setting with pkg-config output. If not, try pkg-config
2479   # to obtain all needed flags.
2480
2481   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2482      $pkg_config --exists xencontrol ; then
2483     xen_ctrl_version="$(printf '%d%02d%02d' \
2484       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2485     xen=enabled
2486     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2487     xen_pc="$xen_pc xenevtchn xendevicemodel"
2488     if $pkg_config --exists xentoolcore; then
2489       xen_pc="$xen_pc xentoolcore"
2490     fi
2491     xen_cflags="$($pkg_config --cflags $xen_pc)"
2492     xen_libs="$($pkg_config --libs $xen_pc)"
2493   else
2494
2495     xen_libs="-lxenstore -lxenctrl"
2496     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2497
2498     # First we test whether Xen headers and libraries are available.
2499     # If no, we are done and there is no Xen support.
2500     # If yes, more tests are run to detect the Xen version.
2501
2502     # Xen (any)
2503     cat > $TMPC <<EOF
2504 #include <xenctrl.h>
2505 int main(void) {
2506   return 0;
2507 }
2508 EOF
2509     if ! compile_prog "" "$xen_libs" ; then
2510       # Xen not found
2511       if test "$xen" = "enabled" ; then
2512         feature_not_found "xen" "Install xen devel"
2513       fi
2514       xen=disabled
2515
2516     # Xen unstable
2517     elif
2518         cat > $TMPC <<EOF &&
2519 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2520 #define __XEN_TOOLS__
2521 #include <xendevicemodel.h>
2522 #include <xenforeignmemory.h>
2523 int main(void) {
2524   xendevicemodel_handle *xd;
2525   xenforeignmemory_handle *xfmem;
2526
2527   xd = xendevicemodel_open(0, 0);
2528   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2529
2530   xfmem = xenforeignmemory_open(0, 0);
2531   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2532
2533   return 0;
2534 }
2535 EOF
2536         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2537       then
2538       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2539       xen_ctrl_version=41100
2540       xen=enabled
2541     elif
2542         cat > $TMPC <<EOF &&
2543 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2544 #include <xenforeignmemory.h>
2545 #include <xentoolcore.h>
2546 int main(void) {
2547   xenforeignmemory_handle *xfmem;
2548
2549   xfmem = xenforeignmemory_open(0, 0);
2550   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2551   xentoolcore_restrict_all(0);
2552
2553   return 0;
2554 }
2555 EOF
2556         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2557       then
2558       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2559       xen_ctrl_version=41000
2560       xen=enabled
2561     elif
2562         cat > $TMPC <<EOF &&
2563 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2564 #define __XEN_TOOLS__
2565 #include <xendevicemodel.h>
2566 int main(void) {
2567   xendevicemodel_handle *xd;
2568
2569   xd = xendevicemodel_open(0, 0);
2570   xendevicemodel_close(xd);
2571
2572   return 0;
2573 }
2574 EOF
2575         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2576       then
2577       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2578       xen_ctrl_version=40900
2579       xen=enabled
2580     elif
2581         cat > $TMPC <<EOF &&
2582 /*
2583  * If we have stable libs the we don't want the libxc compat
2584  * layers, regardless of what CFLAGS we may have been given.
2585  *
2586  * Also, check if xengnttab_grant_copy_segment_t is defined and
2587  * grant copy operation is implemented.
2588  */
2589 #undef XC_WANT_COMPAT_EVTCHN_API
2590 #undef XC_WANT_COMPAT_GNTTAB_API
2591 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2592 #include <xenctrl.h>
2593 #include <xenstore.h>
2594 #include <xenevtchn.h>
2595 #include <xengnttab.h>
2596 #include <xenforeignmemory.h>
2597 #include <stdint.h>
2598 #include <xen/hvm/hvm_info_table.h>
2599 #if !defined(HVM_MAX_VCPUS)
2600 # error HVM_MAX_VCPUS not defined
2601 #endif
2602 int main(void) {
2603   xc_interface *xc = NULL;
2604   xenforeignmemory_handle *xfmem;
2605   xenevtchn_handle *xe;
2606   xengnttab_handle *xg;
2607   xengnttab_grant_copy_segment_t* seg = NULL;
2608
2609   xs_daemon_open();
2610
2611   xc = xc_interface_open(0, 0, 0);
2612   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2613   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2614   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2615   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2616
2617   xfmem = xenforeignmemory_open(0, 0);
2618   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2619
2620   xe = xenevtchn_open(0, 0);
2621   xenevtchn_fd(xe);
2622
2623   xg = xengnttab_open(0, 0);
2624   xengnttab_grant_copy(xg, 0, seg);
2625
2626   return 0;
2627 }
2628 EOF
2629         compile_prog "" "$xen_libs $xen_stable_libs"
2630       then
2631       xen_ctrl_version=40800
2632       xen=enabled
2633     elif
2634         cat > $TMPC <<EOF &&
2635 /*
2636  * If we have stable libs the we don't want the libxc compat
2637  * layers, regardless of what CFLAGS we may have been given.
2638  */
2639 #undef XC_WANT_COMPAT_EVTCHN_API
2640 #undef XC_WANT_COMPAT_GNTTAB_API
2641 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2642 #include <xenctrl.h>
2643 #include <xenstore.h>
2644 #include <xenevtchn.h>
2645 #include <xengnttab.h>
2646 #include <xenforeignmemory.h>
2647 #include <stdint.h>
2648 #include <xen/hvm/hvm_info_table.h>
2649 #if !defined(HVM_MAX_VCPUS)
2650 # error HVM_MAX_VCPUS not defined
2651 #endif
2652 int main(void) {
2653   xc_interface *xc = NULL;
2654   xenforeignmemory_handle *xfmem;
2655   xenevtchn_handle *xe;
2656   xengnttab_handle *xg;
2657
2658   xs_daemon_open();
2659
2660   xc = xc_interface_open(0, 0, 0);
2661   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2662   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2663   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2664   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2665
2666   xfmem = xenforeignmemory_open(0, 0);
2667   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2668
2669   xe = xenevtchn_open(0, 0);
2670   xenevtchn_fd(xe);
2671
2672   xg = xengnttab_open(0, 0);
2673   xengnttab_map_grant_ref(xg, 0, 0, 0);
2674
2675   return 0;
2676 }
2677 EOF
2678         compile_prog "" "$xen_libs $xen_stable_libs"
2679       then
2680       xen_ctrl_version=40701
2681       xen=enabled
2682
2683     # Xen 4.6
2684     elif
2685         cat > $TMPC <<EOF &&
2686 #include <xenctrl.h>
2687 #include <xenstore.h>
2688 #include <stdint.h>
2689 #include <xen/hvm/hvm_info_table.h>
2690 #if !defined(HVM_MAX_VCPUS)
2691 # error HVM_MAX_VCPUS not defined
2692 #endif
2693 int main(void) {
2694   xc_interface *xc;
2695   xs_daemon_open();
2696   xc = xc_interface_open(0, 0, 0);
2697   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2698   xc_gnttab_open(NULL, 0);
2699   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2700   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2701   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2702   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2703   return 0;
2704 }
2705 EOF
2706         compile_prog "" "$xen_libs"
2707       then
2708       xen_ctrl_version=40600
2709       xen=enabled
2710
2711     # Xen 4.5
2712     elif
2713         cat > $TMPC <<EOF &&
2714 #include <xenctrl.h>
2715 #include <xenstore.h>
2716 #include <stdint.h>
2717 #include <xen/hvm/hvm_info_table.h>
2718 #if !defined(HVM_MAX_VCPUS)
2719 # error HVM_MAX_VCPUS not defined
2720 #endif
2721 int main(void) {
2722   xc_interface *xc;
2723   xs_daemon_open();
2724   xc = xc_interface_open(0, 0, 0);
2725   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2726   xc_gnttab_open(NULL, 0);
2727   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2728   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2729   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2730   return 0;
2731 }
2732 EOF
2733         compile_prog "" "$xen_libs"
2734       then
2735       xen_ctrl_version=40500
2736       xen=enabled
2737
2738     elif
2739         cat > $TMPC <<EOF &&
2740 #include <xenctrl.h>
2741 #include <xenstore.h>
2742 #include <stdint.h>
2743 #include <xen/hvm/hvm_info_table.h>
2744 #if !defined(HVM_MAX_VCPUS)
2745 # error HVM_MAX_VCPUS not defined
2746 #endif
2747 int main(void) {
2748   xc_interface *xc;
2749   xs_daemon_open();
2750   xc = xc_interface_open(0, 0, 0);
2751   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2752   xc_gnttab_open(NULL, 0);
2753   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2754   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2755   return 0;
2756 }
2757 EOF
2758         compile_prog "" "$xen_libs"
2759       then
2760       xen_ctrl_version=40200
2761       xen=enabled
2762
2763     else
2764       if test "$xen" = "enabled" ; then
2765         feature_not_found "xen (unsupported version)" \
2766                           "Install a supported xen (xen 4.2 or newer)"
2767       fi
2768       xen=disabled
2769     fi
2770
2771     if test "$xen" = enabled; then
2772       if test $xen_ctrl_version -ge 40701  ; then
2773         xen_libs="$xen_libs $xen_stable_libs "
2774       fi
2775     fi
2776   fi
2777 fi
2778
2779 ##########################################
2780 # GNUTLS probe
2781
2782 if test "$gnutls" != "no"; then
2783     pass="no"
2784     if $pkg_config --exists "gnutls >= 3.1.18"; then
2785         gnutls_cflags=$($pkg_config --cflags gnutls)
2786         gnutls_libs=$($pkg_config --libs gnutls)
2787         # Packaging for the static libraries is not always correct.
2788         # At least ubuntu 18.04 ships only shared libraries.
2789         write_c_skeleton
2790         if compile_prog "" "$gnutls_libs" ; then
2791             pass="yes"
2792         fi
2793     fi
2794     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2795         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2796     else
2797         gnutls="$pass"
2798     fi
2799 fi
2800
2801
2802 # If user didn't give a --disable/enable-gcrypt flag,
2803 # then mark as disabled if user requested nettle
2804 # explicitly
2805 if test -z "$gcrypt"
2806 then
2807     if test "$nettle" = "yes"
2808     then
2809         gcrypt="no"
2810     fi
2811 fi
2812
2813 # If user didn't give a --disable/enable-nettle flag,
2814 # then mark as disabled if user requested gcrypt
2815 # explicitly
2816 if test -z "$nettle"
2817 then
2818     if test "$gcrypt" = "yes"
2819     then
2820         nettle="no"
2821     fi
2822 fi
2823
2824 has_libgcrypt() {
2825     if ! has "libgcrypt-config"
2826     then
2827         return 1
2828     fi
2829
2830     if test -n "$cross_prefix"
2831     then
2832         host=$(libgcrypt-config --host)
2833         if test "$host-" != $cross_prefix
2834         then
2835             return 1
2836         fi
2837     fi
2838
2839     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2840     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2841
2842     if test $maj != 1 || test $min -lt 5
2843     then
2844        return 1
2845     fi
2846
2847     return 0
2848 }
2849
2850
2851 if test "$nettle" != "no"; then
2852     pass="no"
2853     if $pkg_config --exists "nettle >= 2.7.1"; then
2854         nettle_cflags=$($pkg_config --cflags nettle)
2855         nettle_libs=$($pkg_config --libs nettle)
2856         nettle_version=$($pkg_config --modversion nettle)
2857         # Link test to make sure the given libraries work (e.g for static).
2858         write_c_skeleton
2859         if compile_prog "" "$nettle_libs" ; then
2860             if test -z "$gcrypt"; then
2861                gcrypt="no"
2862             fi
2863             pass="yes"
2864         fi
2865     fi
2866     if test "$pass" = "yes"
2867     then
2868         cat > $TMPC << EOF
2869 #include <nettle/xts.h>
2870 int main(void) {
2871   return 0;
2872 }
2873 EOF
2874         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2875             nettle_xts=yes
2876             qemu_private_xts=no
2877         fi
2878     fi
2879     if test "$pass" = "no" && test "$nettle" = "yes"; then
2880         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2881     else
2882         nettle="$pass"
2883     fi
2884 fi
2885
2886 if test "$gcrypt" != "no"; then
2887     pass="no"
2888     if has_libgcrypt; then
2889         gcrypt_cflags=$(libgcrypt-config --cflags)
2890         gcrypt_libs=$(libgcrypt-config --libs)
2891         # Debian has removed -lgpg-error from libgcrypt-config
2892         # as it "spreads unnecessary dependencies" which in
2893         # turn breaks static builds...
2894         if test "$static" = "yes"
2895         then
2896             gcrypt_libs="$gcrypt_libs -lgpg-error"
2897         fi
2898
2899         # Link test to make sure the given libraries work (e.g for static).
2900         write_c_skeleton
2901         if compile_prog "" "$gcrypt_libs" ; then
2902             pass="yes"
2903         fi
2904     fi
2905     if test "$pass" = "yes"; then
2906         gcrypt="yes"
2907         cat > $TMPC << EOF
2908 #include <gcrypt.h>
2909 int main(void) {
2910   gcry_mac_hd_t handle;
2911   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
2912                 GCRY_MAC_FLAG_SECURE, NULL);
2913   return 0;
2914 }
2915 EOF
2916         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2917             gcrypt_hmac=yes
2918         fi
2919         cat > $TMPC << EOF
2920 #include <gcrypt.h>
2921 int main(void) {
2922   gcry_cipher_hd_t handle;
2923   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
2924   return 0;
2925 }
2926 EOF
2927         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2928             gcrypt_xts=yes
2929             qemu_private_xts=no
2930         fi
2931     elif test "$gcrypt" = "yes"; then
2932         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2933     else
2934         gcrypt="no"
2935     fi
2936 fi
2937
2938
2939 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2940 then
2941     error_exit "Only one of gcrypt & nettle can be enabled"
2942 fi
2943
2944 ##########################################
2945 # libtasn1 - only for the TLS creds/session test suite
2946
2947 tasn1=yes
2948 tasn1_cflags=""
2949 tasn1_libs=""
2950 if $pkg_config --exists "libtasn1"; then
2951     tasn1_cflags=$($pkg_config --cflags libtasn1)
2952     tasn1_libs=$($pkg_config --libs libtasn1)
2953 else
2954     tasn1=no
2955 fi
2956
2957
2958 ##########################################
2959 # PAM probe
2960
2961 if test "$auth_pam" != "no"; then
2962     cat > $TMPC <<EOF
2963 #include <security/pam_appl.h>
2964 #include <stdio.h>
2965 int main(void) {
2966    const char *service_name = "qemu";
2967    const char *user = "frank";
2968    const struct pam_conv pam_conv = { 0 };
2969    pam_handle_t *pamh = NULL;
2970    pam_start(service_name, user, &pam_conv, &pamh);
2971    return 0;
2972 }
2973 EOF
2974     if compile_prog "" "-lpam" ; then
2975         auth_pam=yes
2976     else
2977         if test "$auth_pam" = "yes"; then
2978             feature_not_found "PAM" "Install PAM development package"
2979         else
2980             auth_pam=no
2981         fi
2982     fi
2983 fi
2984
2985 ##########################################
2986 # VTE probe
2987
2988 if test "$vte" != "no"; then
2989     vteminversion="0.32.0"
2990     if $pkg_config --exists "vte-2.91"; then
2991       vtepackage="vte-2.91"
2992     else
2993       vtepackage="vte-2.90"
2994     fi
2995     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
2996         vte_cflags=$($pkg_config --cflags $vtepackage)
2997         vte_libs=$($pkg_config --libs $vtepackage)
2998         vteversion=$($pkg_config --modversion $vtepackage)
2999         vte="yes"
3000     elif test "$vte" = "yes"; then
3001         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3002     else
3003         vte="no"
3004     fi
3005 fi
3006
3007 ##########################################
3008 # RDMA needs OpenFabrics libraries
3009 if test "$rdma" != "no" ; then
3010   cat > $TMPC <<EOF
3011 #include <rdma/rdma_cma.h>
3012 int main(void) { return 0; }
3013 EOF
3014   rdma_libs="-lrdmacm -libverbs -libumad"
3015   if compile_prog "" "$rdma_libs" ; then
3016     rdma="yes"
3017   else
3018     if test "$rdma" = "yes" ; then
3019         error_exit \
3020             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3021             " Your options:" \
3022             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3023             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3024             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3025     fi
3026     rdma="no"
3027   fi
3028 fi
3029
3030 ##########################################
3031 # PVRDMA detection
3032
3033 cat > $TMPC <<EOF &&
3034 #include <sys/mman.h>
3035
3036 int
3037 main(void)
3038 {
3039     char buf = 0;
3040     void *addr = &buf;
3041     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3042
3043     return 0;
3044 }
3045 EOF
3046
3047 if test "$rdma" = "yes" ; then
3048     case "$pvrdma" in
3049     "")
3050         if compile_prog "" ""; then
3051             pvrdma="yes"
3052         else
3053             pvrdma="no"
3054         fi
3055         ;;
3056     "yes")
3057         if ! compile_prog "" ""; then
3058             error_exit "PVRDMA is not supported since mremap is not implemented"
3059         fi
3060         pvrdma="yes"
3061         ;;
3062     "no")
3063         pvrdma="no"
3064         ;;
3065     esac
3066 else
3067     if test "$pvrdma" = "yes" ; then
3068         error_exit "PVRDMA requires rdma suppport"
3069     fi
3070     pvrdma="no"
3071 fi
3072
3073 # Let's see if enhanced reg_mr is supported
3074 if test "$pvrdma" = "yes" ; then
3075
3076 cat > $TMPC <<EOF &&
3077 #include <infiniband/verbs.h>
3078
3079 int
3080 main(void)
3081 {
3082     struct ibv_mr *mr;
3083     struct ibv_pd *pd = NULL;
3084     size_t length = 10;
3085     uint64_t iova = 0;
3086     int access = 0;
3087     void *addr = NULL;
3088
3089     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3090
3091     ibv_dereg_mr(mr);
3092
3093     return 0;
3094 }
3095 EOF
3096     if ! compile_prog "" "-libverbs"; then
3097         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3098     fi
3099 fi
3100
3101 ##########################################
3102 # xfsctl() probe, used for file-posix.c
3103 if test "$xfs" != "no" ; then
3104   cat > $TMPC << EOF
3105 #include <stddef.h>  /* NULL */
3106 #include <xfs/xfs.h>
3107 int main(void)
3108 {
3109     xfsctl(NULL, 0, 0, NULL);
3110     return 0;
3111 }
3112 EOF
3113   if compile_prog "" "" ; then
3114     xfs="yes"
3115   else
3116     if test "$xfs" = "yes" ; then
3117       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3118     fi
3119     xfs=no
3120   fi
3121 fi
3122
3123 ##########################################
3124 # vde libraries probe
3125 if test "$vde" != "no" ; then
3126   vde_libs="-lvdeplug"
3127   cat > $TMPC << EOF
3128 #include <libvdeplug.h>
3129 int main(void)
3130 {
3131     struct vde_open_args a = {0, 0, 0};
3132     char s[] = "";
3133     vde_open(s, s, &a);
3134     return 0;
3135 }
3136 EOF
3137   if compile_prog "" "$vde_libs" ; then
3138     vde=yes
3139   else
3140     if test "$vde" = "yes" ; then
3141       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3142     fi
3143     vde=no
3144   fi
3145 fi
3146
3147 ##########################################
3148 # netmap support probe
3149 # Apart from looking for netmap headers, we make sure that the host API version
3150 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3151 # a minor/major version number. Minor new features will be marked with values up
3152 # to 15, and if something happens that requires a change to the backend we will
3153 # move above 15, submit the backend fixes and modify this two bounds.
3154 if test "$netmap" != "no" ; then
3155   cat > $TMPC << EOF
3156 #include <inttypes.h>
3157 #include <net/if.h>
3158 #include <net/netmap.h>
3159 #include <net/netmap_user.h>
3160 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3161 #error
3162 #endif
3163 int main(void) { return 0; }
3164 EOF
3165   if compile_prog "" "" ; then
3166     netmap=yes
3167   else
3168     if test "$netmap" = "yes" ; then
3169       feature_not_found "netmap"
3170     fi
3171     netmap=no
3172   fi
3173 fi
3174
3175 ##########################################
3176 # detect CoreAudio
3177 if test "$coreaudio" != "no" ; then
3178   coreaudio_libs="-framework CoreAudio"
3179   cat > $TMPC << EOF
3180 #include <CoreAudio/CoreAudio.h>
3181 int main(void)
3182 {
3183   return (int)AudioGetCurrentHostTime();
3184 }
3185 EOF
3186   if compile_prog "" "$coreaudio_libs" ; then
3187     coreaudio=yes
3188   else
3189     coreaudio=no
3190   fi
3191 fi
3192
3193 ##########################################
3194 # Sound support libraries probe
3195
3196 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3197 for drv in $audio_drv_list; do
3198     case $drv in
3199     alsa | try-alsa)
3200     if $pkg_config alsa --exists; then
3201         alsa_libs=$($pkg_config alsa --libs)
3202         alsa_cflags=$($pkg_config alsa --cflags)
3203         alsa=yes
3204         if test "$drv" = "try-alsa"; then
3205             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3206         fi
3207     else
3208         if test "$drv" = "try-alsa"; then
3209             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3210         else
3211             error_exit "$drv check failed" \
3212                 "Make sure to have the $drv libs and headers installed."
3213         fi
3214     fi
3215     ;;
3216
3217     pa | try-pa)
3218     if $pkg_config libpulse --exists; then
3219         libpulse=yes
3220         pulse_libs=$($pkg_config libpulse --libs)
3221         pulse_cflags=$($pkg_config libpulse --cflags)
3222         if test "$drv" = "try-pa"; then
3223             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3224         fi
3225     else
3226         if test "$drv" = "try-pa"; then
3227             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3228         else
3229             error_exit "$drv check failed" \
3230                 "Make sure to have the $drv libs and headers installed."
3231         fi
3232     fi
3233     ;;
3234
3235     sdl)
3236     if test "$sdl" = "no"; then
3237         error_exit "sdl not found or disabled, can not use sdl audio driver"
3238     fi
3239     ;;
3240
3241     try-sdl)
3242     if test "$sdl" = "no"; then
3243         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3244     else
3245         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3246     fi
3247     ;;
3248
3249     coreaudio | try-coreaudio)
3250     if test "$coreaudio" = "no"; then
3251       if test "$drv" = "try-coreaudio"; then
3252         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio//')
3253       else
3254         error_exit "$drv check failed" \
3255                 "Make sure to have the $drv is available."
3256       fi
3257     else
3258       coreaudio_libs="-framework CoreAudio"
3259       if test "$drv" = "try-coreaudio"; then
3260         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio/coreaudio/')
3261       fi
3262     fi
3263     ;;
3264
3265     dsound)
3266       dsound_libs="-lole32 -ldxguid"
3267       audio_win_int="yes"
3268     ;;
3269
3270     oss)
3271       oss_libs="$oss_lib"
3272     ;;
3273
3274     jack | try-jack)
3275     if $pkg_config jack --exists; then
3276         libjack=yes
3277         jack_libs=$($pkg_config jack --libs)
3278         if test "$drv" = "try-jack"; then
3279             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3280         fi
3281     else
3282         if test "$drv" = "try-jack"; then
3283             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3284         else
3285             error_exit "$drv check failed" \
3286                 "Make sure to have the $drv libs and headers installed."
3287         fi
3288     fi
3289     ;;
3290
3291     *)
3292     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3293         error_exit "Unknown driver '$drv' selected" \
3294             "Possible drivers are: $audio_possible_drivers"
3295     }
3296     ;;
3297     esac
3298 done
3299
3300 ##########################################
3301 # glib support probe
3302
3303 glib_req_ver=2.48
3304 glib_modules=gthread-2.0
3305 if test "$modules" = yes; then
3306     glib_modules="$glib_modules gmodule-export-2.0"
3307 fi
3308 if test "$plugins" = yes; then
3309     glib_modules="$glib_modules gmodule-2.0"
3310 fi
3311
3312 for i in $glib_modules; do
3313     if $pkg_config --atleast-version=$glib_req_ver $i; then
3314         glib_cflags=$($pkg_config --cflags $i)
3315         glib_libs=$($pkg_config --libs $i)
3316     else
3317         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3318     fi
3319 done
3320
3321 # This workaround is required due to a bug in pkg-config file for glib as it
3322 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3323
3324 if test "$static" = yes && test "$mingw32" = yes; then
3325     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3326 fi
3327
3328 if ! test "$gio" = "no"; then
3329     pass=no
3330     if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3331         gio_cflags=$($pkg_config --cflags gio-2.0)
3332         gio_libs=$($pkg_config --libs gio-2.0)
3333         gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3334         if [ ! -x "$gdbus_codegen" ]; then
3335             gdbus_codegen=
3336         fi
3337         # Check that the libraries actually work -- Ubuntu 18.04 ships
3338         # with pkg-config --static --libs data for gio-2.0 that is missing
3339         # -lblkid and will give a link error.
3340         cat > $TMPC <<EOF
3341 #include <gio/gio.h>
3342 int main(void)
3343 {
3344     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3345     return 0;
3346 }
3347 EOF
3348         if compile_prog "$gio_cflags" "$gio_libs" ; then
3349             pass=yes
3350         else
3351             pass=no
3352         fi
3353
3354         if test "$pass" = "yes" &&
3355             $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3356             gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3357             gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3358         fi
3359     fi
3360
3361     if test "$pass" = "no"; then
3362         if test "$gio" = "yes"; then
3363             feature_not_found "gio" "Install libgio >= 2.0"
3364         else
3365             gio=no
3366         fi
3367     else
3368         gio=yes
3369     fi
3370 fi
3371
3372 # Sanity check that the current size_t matches the
3373 # size that glib thinks it should be. This catches
3374 # problems on multi-arch where people try to build
3375 # 32-bit QEMU while pointing at 64-bit glib headers
3376 cat > $TMPC <<EOF
3377 #include <glib.h>
3378 #include <unistd.h>
3379
3380 #define QEMU_BUILD_BUG_ON(x) \
3381   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3382
3383 int main(void) {
3384    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3385    return 0;
3386 }
3387 EOF
3388
3389 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3390     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3391                "You probably need to set PKG_CONFIG_LIBDIR"\
3392                "to point to the right pkg-config files for your"\
3393                "build target"
3394 fi
3395
3396 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3397 cat > $TMPC << EOF
3398 #include <glib.h>
3399 int main(void) { return 0; }
3400 EOF
3401 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3402     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3403         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3404         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3405     fi
3406 fi
3407
3408 # Silence clang warnings triggered by glib < 2.57.2
3409 cat > $TMPC << EOF
3410 #include <glib.h>
3411 typedef struct Foo {
3412     int i;
3413 } Foo;
3414 static void foo_free(Foo *f)
3415 {
3416     g_free(f);
3417 }
3418 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3419 int main(void) { return 0; }
3420 EOF
3421 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3422     if cc_has_warning_flag "-Wno-unused-function"; then
3423         glib_cflags="$glib_cflags -Wno-unused-function"
3424         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3425     fi
3426 fi
3427
3428 ##########################################
3429 # SHA command probe for modules
3430 if test "$modules" = yes; then
3431     shacmd_probe="sha1sum sha1 shasum"
3432     for c in $shacmd_probe; do
3433         if has $c; then
3434             shacmd="$c"
3435             break
3436         fi
3437     done
3438     if test "$shacmd" = ""; then
3439         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3440     fi
3441 fi
3442
3443 ##########################################
3444 # pthread probe
3445 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3446
3447 pthread=no
3448 cat > $TMPC << EOF
3449 #include <pthread.h>
3450 static void *f(void *p) { return NULL; }
3451 int main(void) {
3452   pthread_t thread;
3453   pthread_create(&thread, 0, f, 0);
3454   return 0;
3455 }
3456 EOF
3457 if compile_prog "" "" ; then
3458   pthread=yes
3459 else
3460   for pthread_lib in $PTHREADLIBS_LIST; do
3461     if compile_prog "" "$pthread_lib" ; then
3462       pthread=yes
3463       break
3464     fi
3465   done
3466 fi
3467
3468 if test "$mingw32" != yes && test "$pthread" = no; then
3469   error_exit "pthread check failed" \
3470       "Make sure to have the pthread libs and headers installed."
3471 fi
3472
3473 # check for pthread_setname_np with thread id
3474 pthread_setname_np_w_tid=no
3475 cat > $TMPC << EOF
3476 #include <pthread.h>
3477
3478 static void *f(void *p) { return NULL; }
3479 int main(void)
3480 {
3481     pthread_t thread;
3482     pthread_create(&thread, 0, f, 0);
3483     pthread_setname_np(thread, "QEMU");
3484     return 0;
3485 }
3486 EOF
3487 if compile_prog "" "$pthread_lib" ; then
3488   pthread_setname_np_w_tid=yes
3489 fi
3490
3491 # check for pthread_setname_np without thread id
3492 pthread_setname_np_wo_tid=no
3493 cat > $TMPC << EOF
3494 #include <pthread.h>
3495
3496 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3497 int main(void)
3498 {
3499     pthread_t thread;
3500     pthread_create(&thread, 0, f, 0);
3501     return 0;
3502 }
3503 EOF
3504 if compile_prog "" "$pthread_lib" ; then
3505   pthread_setname_np_wo_tid=yes
3506 fi
3507
3508 ##########################################
3509 # libssh probe
3510 if test "$libssh" != "no" ; then
3511   if $pkg_config --exists libssh; then
3512     libssh_cflags=$($pkg_config libssh --cflags)
3513     libssh_libs=$($pkg_config libssh --libs)
3514     libssh=yes
3515   else
3516     if test "$libssh" = "yes" ; then
3517       error_exit "libssh required for --enable-libssh"
3518     fi
3519     libssh=no
3520   fi
3521 fi
3522
3523 ##########################################
3524 # Check for libssh 0.8
3525 # This is done like this instead of using the LIBSSH_VERSION_* and
3526 # SSH_VERSION_* macros because some distributions in the past shipped
3527 # snapshots of the future 0.8 from Git, and those snapshots did not
3528 # have updated version numbers (still referring to 0.7.0).
3529
3530 if test "$libssh" = "yes"; then
3531   cat > $TMPC <<EOF
3532 #include <libssh/libssh.h>
3533 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3534 EOF
3535   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3536     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3537   fi
3538 fi
3539
3540 ##########################################
3541 # linux-aio probe
3542
3543 if test "$linux_aio" != "no" ; then
3544   cat > $TMPC <<EOF
3545 #include <libaio.h>
3546 #include <sys/eventfd.h>
3547 #include <stddef.h>
3548 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3549 EOF
3550   if compile_prog "" "-laio" ; then
3551     linux_aio=yes
3552   else
3553     if test "$linux_aio" = "yes" ; then
3554       feature_not_found "linux AIO" "Install libaio devel"
3555     fi
3556     linux_aio=no
3557   fi
3558 fi
3559 ##########################################
3560 # linux-io-uring probe
3561
3562 if test "$linux_io_uring" != "no" ; then
3563   if $pkg_config liburing; then
3564     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3565     linux_io_uring_libs=$($pkg_config --libs liburing)
3566     linux_io_uring=yes
3567   else
3568     if test "$linux_io_uring" = "yes" ; then
3569       feature_not_found "linux io_uring" "Install liburing devel"
3570     fi
3571     linux_io_uring=no
3572   fi
3573 fi
3574
3575 ##########################################
3576 # TPM emulation is only on POSIX
3577
3578 if test "$tpm" = ""; then
3579   if test "$mingw32" = "yes"; then
3580     tpm=no
3581   else
3582     tpm=yes
3583   fi
3584 elif test "$tpm" = "yes"; then
3585   if test "$mingw32" = "yes" ; then
3586     error_exit "TPM emulation only available on POSIX systems"
3587   fi
3588 fi
3589
3590 ##########################################
3591 # iovec probe
3592 cat > $TMPC <<EOF
3593 #include <sys/types.h>
3594 #include <sys/uio.h>
3595 #include <unistd.h>
3596 int main(void) { return sizeof(struct iovec); }
3597 EOF
3598 iovec=no
3599 if compile_prog "" "" ; then
3600   iovec=yes
3601 fi
3602
3603 ##########################################
3604 # fdt probe
3605
3606 case "$fdt" in
3607   auto | enabled | internal)
3608     # Simpler to always update submodule, even if not needed.
3609     if test "$git_submodules_action" != "ignore"; then
3610       git_submodules="${git_submodules} dtc"
3611     fi
3612     ;;
3613 esac
3614
3615 ##########################################
3616 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3617
3618 gbm="no"
3619 if $pkg_config gbm; then
3620     gbm_cflags="$($pkg_config --cflags gbm)"
3621     gbm_libs="$($pkg_config --libs gbm)"
3622     gbm="yes"
3623 fi
3624
3625 if test "$opengl" != "no" ; then
3626   epoxy=no
3627   if $pkg_config epoxy; then
3628     cat > $TMPC << EOF
3629 #include <epoxy/egl.h>
3630 int main(void) { return 0; }
3631 EOF
3632     if compile_prog "" "" ; then
3633       epoxy=yes
3634     fi
3635   fi
3636
3637   if test "$epoxy" = "yes" ; then
3638     opengl_cflags="$($pkg_config --cflags epoxy)"
3639     opengl_libs="$($pkg_config --libs epoxy)"
3640     opengl=yes
3641   else
3642     if test "$opengl" = "yes" ; then
3643       feature_not_found "opengl" "Please install epoxy with EGL"
3644     fi
3645     opengl_cflags=""
3646     opengl_libs=""
3647     opengl=no
3648   fi
3649 fi
3650
3651 ##########################################
3652 # libxml2 probe
3653 if test "$libxml2" != "no" ; then
3654     if $pkg_config --exists libxml-2.0; then
3655         libxml2="yes"
3656         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3657         libxml2_libs=$($pkg_config --libs libxml-2.0)
3658     else
3659         if test "$libxml2" = "yes"; then
3660             feature_not_found "libxml2" "Install libxml2 devel"
3661         fi
3662         libxml2="no"
3663     fi
3664 fi
3665
3666 # Check for inotify functions when we are building linux-user
3667 # emulator.  This is done because older glibc versions don't
3668 # have syscall stubs for these implemented.  In that case we
3669 # don't provide them even if kernel supports them.
3670 #
3671 inotify=no
3672 cat > $TMPC << EOF
3673 #include <sys/inotify.h>
3674
3675 int
3676 main(void)
3677 {
3678         /* try to start inotify */
3679         return inotify_init();
3680 }
3681 EOF
3682 if compile_prog "" "" ; then
3683   inotify=yes
3684 fi
3685
3686 inotify1=no
3687 cat > $TMPC << EOF
3688 #include <sys/inotify.h>
3689
3690 int
3691 main(void)
3692 {
3693     /* try to start inotify */
3694     return inotify_init1(0);
3695 }
3696 EOF
3697 if compile_prog "" "" ; then
3698   inotify1=yes
3699 fi
3700
3701 # check if pipe2 is there
3702 pipe2=no
3703 cat > $TMPC << EOF
3704 #include <unistd.h>
3705 #include <fcntl.h>
3706
3707 int main(void)
3708 {
3709     int pipefd[2];
3710     return pipe2(pipefd, O_CLOEXEC);
3711 }
3712 EOF
3713 if compile_prog "" "" ; then
3714   pipe2=yes
3715 fi
3716
3717 # check if accept4 is there
3718 accept4=no
3719 cat > $TMPC << EOF
3720 #include <sys/socket.h>
3721 #include <stddef.h>
3722
3723 int main(void)
3724 {
3725     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3726     return 0;
3727 }
3728 EOF
3729 if compile_prog "" "" ; then
3730   accept4=yes
3731 fi
3732
3733 # check if tee/splice is there. vmsplice was added same time.
3734 splice=no
3735 cat > $TMPC << EOF
3736 #include <unistd.h>
3737 #include <fcntl.h>
3738 #include <limits.h>
3739
3740 int main(void)
3741 {
3742     int len, fd = 0;
3743     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3744     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3745     return 0;
3746 }
3747 EOF
3748 if compile_prog "" "" ; then
3749   splice=yes
3750 fi
3751
3752 ##########################################
3753 # libnuma probe
3754
3755 if test "$numa" != "no" ; then
3756   cat > $TMPC << EOF
3757 #include <numa.h>
3758 int main(void) { return numa_available(); }
3759 EOF
3760
3761   if compile_prog "" "-lnuma" ; then
3762     numa=yes
3763     numa_libs="-lnuma"
3764   else
3765     if test "$numa" = "yes" ; then
3766       feature_not_found "numa" "install numactl devel"
3767     fi
3768     numa=no
3769   fi
3770 fi
3771
3772 malloc=system
3773 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3774     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3775     exit 1
3776 elif test "$tcmalloc" = "yes" ; then
3777     malloc=tcmalloc
3778 elif test "$jemalloc" = "yes" ; then
3779     malloc=jemalloc
3780 fi
3781
3782 ##########################################
3783 # signalfd probe
3784 signalfd="no"
3785 cat > $TMPC << EOF
3786 #include <unistd.h>
3787 #include <sys/syscall.h>
3788 #include <signal.h>
3789 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3790 EOF
3791
3792 if compile_prog "" "" ; then
3793   signalfd=yes
3794 fi
3795
3796 # check if optreset global is declared by <getopt.h>
3797 optreset="no"
3798 cat > $TMPC << EOF
3799 #include <getopt.h>
3800 int main(void) { return optreset; }
3801 EOF
3802
3803 if compile_prog "" "" ; then
3804   optreset=yes
3805 fi
3806
3807 # check if eventfd is supported
3808 eventfd=no
3809 cat > $TMPC << EOF
3810 #include <sys/eventfd.h>
3811
3812 int main(void)
3813 {
3814     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3815 }
3816 EOF
3817 if compile_prog "" "" ; then
3818   eventfd=yes
3819 fi
3820
3821 # check if memfd is supported
3822 memfd=no
3823 cat > $TMPC << EOF
3824 #include <sys/mman.h>
3825
3826 int main(void)
3827 {
3828     return memfd_create("foo", MFD_ALLOW_SEALING);
3829 }
3830 EOF
3831 if compile_prog "" "" ; then
3832   memfd=yes
3833 fi
3834
3835 # check for usbfs
3836 have_usbfs=no
3837 if test "$linux_user" = "yes"; then
3838   cat > $TMPC << EOF
3839 #include <linux/usbdevice_fs.h>
3840
3841 #ifndef USBDEVFS_GET_CAPABILITIES
3842 #error "USBDEVFS_GET_CAPABILITIES undefined"
3843 #endif
3844
3845 #ifndef USBDEVFS_DISCONNECT_CLAIM
3846 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3847 #endif
3848
3849 int main(void)
3850 {
3851     return 0;
3852 }
3853 EOF
3854   if compile_prog "" ""; then
3855     have_usbfs=yes
3856   fi
3857 fi
3858
3859 # check for fallocate
3860 fallocate=no
3861 cat > $TMPC << EOF
3862 #include <fcntl.h>
3863
3864 int main(void)
3865 {
3866     fallocate(0, 0, 0, 0);
3867     return 0;
3868 }
3869 EOF
3870 if compile_prog "" "" ; then
3871   fallocate=yes
3872 fi
3873
3874 # check for fallocate hole punching
3875 fallocate_punch_hole=no
3876 cat > $TMPC << EOF
3877 #include <fcntl.h>
3878 #include <linux/falloc.h>
3879
3880 int main(void)
3881 {
3882     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3883     return 0;
3884 }
3885 EOF
3886 if compile_prog "" "" ; then
3887   fallocate_punch_hole=yes
3888 fi
3889
3890 # check that fallocate supports range zeroing inside the file
3891 fallocate_zero_range=no
3892 cat > $TMPC << EOF
3893 #include <fcntl.h>
3894 #include <linux/falloc.h>
3895
3896 int main(void)
3897 {
3898     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3899     return 0;
3900 }
3901 EOF
3902 if compile_prog "" "" ; then
3903   fallocate_zero_range=yes
3904 fi
3905
3906 # check for posix_fallocate
3907 posix_fallocate=no
3908 cat > $TMPC << EOF
3909 #include <fcntl.h>
3910
3911 int main(void)
3912 {
3913     posix_fallocate(0, 0, 0);
3914     return 0;
3915 }
3916 EOF
3917 if compile_prog "" "" ; then
3918     posix_fallocate=yes
3919 fi
3920
3921 # check for sync_file_range
3922 sync_file_range=no
3923 cat > $TMPC << EOF
3924 #include <fcntl.h>
3925
3926 int main(void)
3927 {
3928     sync_file_range(0, 0, 0, 0);
3929     return 0;
3930 }
3931 EOF
3932 if compile_prog "" "" ; then
3933   sync_file_range=yes
3934 fi
3935
3936 # check for linux/fiemap.h and FS_IOC_FIEMAP
3937 fiemap=no
3938 cat > $TMPC << EOF
3939 #include <sys/ioctl.h>
3940 #include <linux/fs.h>
3941 #include <linux/fiemap.h>
3942
3943 int main(void)
3944 {
3945     ioctl(0, FS_IOC_FIEMAP, 0);
3946     return 0;
3947 }
3948 EOF
3949 if compile_prog "" "" ; then
3950   fiemap=yes
3951 fi
3952
3953 # check for dup3
3954 dup3=no
3955 cat > $TMPC << EOF
3956 #include <unistd.h>
3957
3958 int main(void)
3959 {
3960     dup3(0, 0, 0);
3961     return 0;
3962 }
3963 EOF
3964 if compile_prog "" "" ; then
3965   dup3=yes
3966 fi
3967
3968 # check for ppoll support
3969 ppoll=no
3970 cat > $TMPC << EOF
3971 #include <poll.h>
3972
3973 int main(void)
3974 {
3975     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3976     ppoll(&pfd, 1, 0, 0);
3977     return 0;
3978 }
3979 EOF
3980 if compile_prog "" "" ; then
3981   ppoll=yes
3982 fi
3983
3984 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3985 prctl_pr_set_timerslack=no
3986 cat > $TMPC << EOF
3987 #include <sys/prctl.h>
3988
3989 int main(void)
3990 {
3991     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3992     return 0;
3993 }
3994 EOF
3995 if compile_prog "" "" ; then
3996   prctl_pr_set_timerslack=yes
3997 fi
3998
3999 # check for epoll support
4000 epoll=no
4001 cat > $TMPC << EOF
4002 #include <sys/epoll.h>
4003
4004 int main(void)
4005 {
4006     epoll_create(0);
4007     return 0;
4008 }
4009 EOF
4010 if compile_prog "" "" ; then
4011   epoll=yes
4012 fi
4013
4014 # epoll_create1 is a later addition
4015 # so we must check separately for its presence
4016 epoll_create1=no
4017 cat > $TMPC << EOF
4018 #include <sys/epoll.h>
4019
4020 int main(void)
4021 {
4022     /* Note that we use epoll_create1 as a value, not as
4023      * a function being called. This is necessary so that on
4024      * old SPARC glibc versions where the function was present in
4025      * the library but not declared in the header file we will
4026      * fail the configure check. (Otherwise we will get a compiler
4027      * warning but not an error, and will proceed to fail the
4028      * qemu compile where we compile with -Werror.)
4029      */
4030     return (int)(uintptr_t)&epoll_create1;
4031 }
4032 EOF
4033 if compile_prog "" "" ; then
4034   epoll_create1=yes
4035 fi
4036
4037 # check for sendfile support
4038 sendfile=no
4039 cat > $TMPC << EOF
4040 #include <sys/sendfile.h>
4041
4042 int main(void)
4043 {
4044     return sendfile(0, 0, 0, 0);
4045 }
4046 EOF
4047 if compile_prog "" "" ; then
4048   sendfile=yes
4049 fi
4050
4051 # check for timerfd support (glibc 2.8 and newer)
4052 timerfd=no
4053 cat > $TMPC << EOF
4054 #include <sys/timerfd.h>
4055
4056 int main(void)
4057 {
4058     return(timerfd_create(CLOCK_REALTIME, 0));
4059 }
4060 EOF
4061 if compile_prog "" "" ; then
4062   timerfd=yes
4063 fi
4064
4065 # check for setns and unshare support
4066 setns=no
4067 cat > $TMPC << EOF
4068 #include <sched.h>
4069
4070 int main(void)
4071 {
4072     int ret;
4073     ret = setns(0, 0);
4074     ret = unshare(0);
4075     return ret;
4076 }
4077 EOF
4078 if compile_prog "" "" ; then
4079   setns=yes
4080 fi
4081
4082 # clock_adjtime probe
4083 clock_adjtime=no
4084 cat > $TMPC <<EOF
4085 #include <time.h>
4086 #include <sys/timex.h>
4087
4088 int main(void)
4089 {
4090     return clock_adjtime(0, 0);
4091 }
4092 EOF
4093 clock_adjtime=no
4094 if compile_prog "" "" ; then
4095   clock_adjtime=yes
4096 fi
4097
4098 # syncfs probe
4099 syncfs=no
4100 cat > $TMPC <<EOF
4101 #include <unistd.h>
4102
4103 int main(void)
4104 {
4105     return syncfs(0);
4106 }
4107 EOF
4108 syncfs=no
4109 if compile_prog "" "" ; then
4110   syncfs=yes
4111 fi
4112
4113 # Search for bswap_32 function
4114 byteswap_h=no
4115 cat > $TMPC << EOF
4116 #include <byteswap.h>
4117 int main(void) { return bswap_32(0); }
4118 EOF
4119 if compile_prog "" "" ; then
4120   byteswap_h=yes
4121 fi
4122
4123 # Search for bswap32 function
4124 bswap_h=no
4125 cat > $TMPC << EOF
4126 #include <sys/endian.h>
4127 #include <sys/types.h>
4128 #include <machine/bswap.h>
4129 int main(void) { return bswap32(0); }
4130 EOF
4131 if compile_prog "" "" ; then
4132   bswap_h=yes
4133 fi
4134
4135 # Check whether we have openpty() in either libc or libutil
4136 cat > $TMPC << EOF
4137 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4138 int main(void) { return openpty(0, 0, 0, 0, 0); }
4139 EOF
4140
4141 have_openpty="no"
4142 if compile_prog "" "" ; then
4143   have_openpty="yes"
4144 else
4145   if compile_prog "" "-lutil" ; then
4146     have_openpty="yes"
4147   fi
4148 fi
4149
4150 ##########################################
4151 # spice probe
4152 if test "$spice" != "no" ; then
4153   cat > $TMPC << EOF
4154 #include <spice.h>
4155 int main(void) { spice_server_new(); return 0; }
4156 EOF
4157   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4158   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4159   if $pkg_config --atleast-version=0.12.5 spice-server && \
4160      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4161      compile_prog "$spice_cflags" "$spice_libs" ; then
4162     spice="yes"
4163   else
4164     if test "$spice" = "yes" ; then
4165       feature_not_found "spice" \
4166           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4167     fi
4168     spice="no"
4169   fi
4170 fi
4171
4172 # check for smartcard support
4173 if test "$smartcard" != "no"; then
4174     if $pkg_config --atleast-version=2.5.1 libcacard; then
4175         libcacard_cflags=$($pkg_config --cflags libcacard)
4176         libcacard_libs=$($pkg_config --libs libcacard)
4177         smartcard="yes"
4178     else
4179         if test "$smartcard" = "yes"; then
4180             feature_not_found "smartcard" "Install libcacard devel"
4181         fi
4182         smartcard="no"
4183     fi
4184 fi
4185
4186 # check for libusb
4187 if test "$libusb" != "no" ; then
4188     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4189         libusb="yes"
4190         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4191         libusb_libs=$($pkg_config --libs libusb-1.0)
4192     else
4193         if test "$libusb" = "yes"; then
4194             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4195         fi
4196         libusb="no"
4197     fi
4198 fi
4199
4200 # check for usbredirparser for usb network redirection support
4201 if test "$usb_redir" != "no" ; then
4202     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4203         usb_redir="yes"
4204         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4205         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4206     else
4207         if test "$usb_redir" = "yes"; then
4208             feature_not_found "usb-redir" "Install usbredir devel"
4209         fi
4210         usb_redir="no"
4211     fi
4212 fi
4213
4214 ##########################################
4215 # check if we have VSS SDK headers for win
4216
4217 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4218         test "$vss_win32_sdk" != "no" ; then
4219   case "$vss_win32_sdk" in
4220     "")   vss_win32_include="-isystem $source_path" ;;
4221     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4222           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4223           vss_win32_include="-isystem $source_path/.sdk/vss"
4224           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4225           ;;
4226     *)    vss_win32_include="-isystem $vss_win32_sdk"
4227   esac
4228   cat > $TMPC << EOF
4229 #define __MIDL_user_allocate_free_DEFINED__
4230 #include <inc/win2003/vss.h>
4231 int main(void) { return VSS_CTX_BACKUP; }
4232 EOF
4233   if compile_prog "$vss_win32_include" "" ; then
4234     guest_agent_with_vss="yes"
4235     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4236     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4237     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4238   else
4239     if test "$vss_win32_sdk" != "" ; then
4240       echo "ERROR: Please download and install Microsoft VSS SDK:"
4241       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4242       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4243       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4244       echo "ERROR: The headers are extracted in the directory \`inc'."
4245       feature_not_found "VSS support"
4246     fi
4247     guest_agent_with_vss="no"
4248   fi
4249 fi
4250
4251 ##########################################
4252 # lookup Windows platform SDK (if not specified)
4253 # The SDK is needed only to build .tlb (type library) file of guest agent
4254 # VSS provider from the source. It is usually unnecessary because the
4255 # pre-compiled .tlb file is included.
4256
4257 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4258         test "$guest_agent_with_vss" = "yes" ; then
4259   if test -z "$win_sdk"; then
4260     programfiles="$PROGRAMFILES"
4261     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4262     if test -n "$programfiles"; then
4263       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4264     else
4265       feature_not_found "Windows SDK"
4266     fi
4267   elif test "$win_sdk" = "no"; then
4268     win_sdk=""
4269   fi
4270 fi
4271
4272 ##########################################
4273 # check if mingw environment provides a recent ntddscsi.h
4274 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4275   cat > $TMPC << EOF
4276 #include <windows.h>
4277 #include <ntddscsi.h>
4278 int main(void) {
4279 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4280 #error Missing required ioctl definitions
4281 #endif
4282   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4283   return addr.Lun;
4284 }
4285 EOF
4286   if compile_prog "" "" ; then
4287     guest_agent_ntddscsi=yes
4288     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4289   fi
4290 fi
4291
4292 ##########################################
4293 # virgl renderer probe
4294
4295 if test "$virglrenderer" != "no" ; then
4296   cat > $TMPC << EOF
4297 #include <virglrenderer.h>
4298 int main(void) { virgl_renderer_poll(); return 0; }
4299 EOF
4300   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4301   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4302   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4303   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4304      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4305     virglrenderer="yes"
4306   else
4307     if test "$virglrenderer" = "yes" ; then
4308       feature_not_found "virglrenderer"
4309     fi
4310     virglrenderer="no"
4311   fi
4312 fi
4313
4314 ##########################################
4315 # capstone
4316
4317 case "$capstone" in
4318   auto | enabled | internal)
4319     # Simpler to always update submodule, even if not needed.
4320     if test "$git_submodules_action" != "ignore"; then
4321       git_submodules="${git_submodules} capstone"
4322     fi
4323     ;;
4324 esac
4325
4326 ##########################################
4327 # check if we have fdatasync
4328
4329 fdatasync=no
4330 cat > $TMPC << EOF
4331 #include <unistd.h>
4332 int main(void) {
4333 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4334 return fdatasync(0);
4335 #else
4336 #error Not supported
4337 #endif
4338 }
4339 EOF
4340 if compile_prog "" "" ; then
4341     fdatasync=yes
4342 fi
4343
4344 ##########################################
4345 # check if we have madvise
4346
4347 madvise=no
4348 cat > $TMPC << EOF
4349 #include <sys/types.h>
4350 #include <sys/mman.h>
4351 #include <stddef.h>
4352 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4353 EOF
4354 if compile_prog "" "" ; then
4355     madvise=yes
4356 fi
4357
4358 ##########################################
4359 # check if we have posix_madvise
4360
4361 posix_madvise=no
4362 cat > $TMPC << EOF
4363 #include <sys/mman.h>
4364 #include <stddef.h>
4365 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4366 EOF
4367 if compile_prog "" "" ; then
4368     posix_madvise=yes
4369 fi
4370
4371 ##########################################
4372 # check if we have posix_memalign()
4373
4374 posix_memalign=no
4375 cat > $TMPC << EOF
4376 #include <stdlib.h>
4377 int main(void) {
4378     void *p;
4379     return posix_memalign(&p, 8, 8);
4380 }
4381 EOF
4382 if compile_prog "" "" ; then
4383     posix_memalign=yes
4384 fi
4385
4386 ##########################################
4387 # check if we have posix_syslog
4388
4389 posix_syslog=no
4390 cat > $TMPC << EOF
4391 #include <syslog.h>
4392 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4393 EOF
4394 if compile_prog "" "" ; then
4395     posix_syslog=yes
4396 fi
4397
4398 ##########################################
4399 # check if we have sem_timedwait
4400
4401 sem_timedwait=no
4402 cat > $TMPC << EOF
4403 #include <semaphore.h>
4404 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4405 EOF
4406 if compile_prog "" "" ; then
4407     sem_timedwait=yes
4408 fi
4409
4410 ##########################################
4411 # check if we have strchrnul
4412
4413 strchrnul=no
4414 cat > $TMPC << EOF
4415 #include <string.h>
4416 int main(void);
4417 // Use a haystack that the compiler shouldn't be able to constant fold
4418 char *haystack = (char*)&main;
4419 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4420 EOF
4421 if compile_prog "" "" ; then
4422     strchrnul=yes
4423 fi
4424
4425 #########################################
4426 # check if we have st_atim
4427
4428 st_atim=no
4429 cat > $TMPC << EOF
4430 #include <sys/stat.h>
4431 #include <stddef.h>
4432 int main(void) { return offsetof(struct stat, st_atim); }
4433 EOF
4434 if compile_prog "" "" ; then
4435     st_atim=yes
4436 fi
4437
4438 ##########################################
4439 # check if trace backend exists
4440
4441 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4442 if test "$?" -ne 0 ; then
4443   error_exit "invalid trace backends" \
4444       "Please choose supported trace backends."
4445 fi
4446
4447 ##########################################
4448 # For 'ust' backend, test if ust headers are present
4449 if have_backend "ust"; then
4450   cat > $TMPC << EOF
4451 #include <lttng/tracepoint.h>
4452 int main(void) { return 0; }
4453 EOF
4454   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4455     if $pkg_config lttng-ust --exists; then
4456       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4457     else
4458       lttng_ust_libs="-llttng-ust -ldl"
4459     fi
4460     if $pkg_config liburcu-bp --exists; then
4461       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4462     else
4463       urcu_bp_libs="-lurcu-bp"
4464     fi
4465   else
4466     error_exit "Trace backend 'ust' missing lttng-ust header files"
4467   fi
4468 fi
4469
4470 ##########################################
4471 # For 'dtrace' backend, test if 'dtrace' command is present
4472 if have_backend "dtrace"; then
4473   if ! has 'dtrace' ; then
4474     error_exit "dtrace command is not found in PATH $PATH"
4475   fi
4476   trace_backend_stap="no"
4477   if has 'stap' ; then
4478     trace_backend_stap="yes"
4479
4480     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4481     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4482     # instead. QEMU --enable-modules depends on this because the SystemTap
4483     # semaphores are linked into the main binary and not the module's shared
4484     # object.
4485     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4486   fi
4487 fi
4488
4489 ##########################################
4490 # check and set a backend for coroutine
4491
4492 # We prefer ucontext, but it's not always possible. The fallback
4493 # is sigcontext. On Windows the only valid backend is the Windows
4494 # specific one.
4495
4496 ucontext_works=no
4497 if test "$darwin" != "yes"; then
4498   cat > $TMPC << EOF
4499 #include <ucontext.h>
4500 #ifdef __stub_makecontext
4501 #error Ignoring glibc stub makecontext which will always fail
4502 #endif
4503 int main(void) { makecontext(0, 0, 0); return 0; }
4504 EOF
4505   if compile_prog "" "" ; then
4506     ucontext_works=yes
4507   fi
4508 fi
4509
4510 if test "$coroutine" = ""; then
4511   if test "$mingw32" = "yes"; then
4512     coroutine=win32
4513   elif test "$ucontext_works" = "yes"; then
4514     coroutine=ucontext
4515   else
4516     coroutine=sigaltstack
4517   fi
4518 else
4519   case $coroutine in
4520   windows)
4521     if test "$mingw32" != "yes"; then
4522       error_exit "'windows' coroutine backend only valid for Windows"
4523     fi
4524     # Unfortunately the user visible backend name doesn't match the
4525     # coroutine-*.c filename for this case, so we have to adjust it here.
4526     coroutine=win32
4527     ;;
4528   ucontext)
4529     if test "$ucontext_works" != "yes"; then
4530       feature_not_found "ucontext"
4531     fi
4532     ;;
4533   sigaltstack)
4534     if test "$mingw32" = "yes"; then
4535       error_exit "only the 'windows' coroutine backend is valid for Windows"
4536     fi
4537     ;;
4538   *)
4539     error_exit "unknown coroutine backend $coroutine"
4540     ;;
4541   esac
4542 fi
4543
4544 if test "$coroutine_pool" = ""; then
4545   coroutine_pool=yes
4546 fi
4547
4548 if test "$debug_stack_usage" = "yes"; then
4549   if test "$coroutine_pool" = "yes"; then
4550     echo "WARN: disabling coroutine pool for stack usage debugging"
4551     coroutine_pool=no
4552   fi
4553 fi
4554
4555 ##################################################
4556 # SafeStack
4557
4558
4559 if test "$safe_stack" = "yes"; then
4560 cat > $TMPC << EOF
4561 int main(int argc, char *argv[])
4562 {
4563 #if ! __has_feature(safe_stack)
4564 #error SafeStack Disabled
4565 #endif
4566     return 0;
4567 }
4568 EOF
4569   flag="-fsanitize=safe-stack"
4570   # Check that safe-stack is supported and enabled.
4571   if compile_prog "-Werror $flag" "$flag"; then
4572     # Flag needed both at compilation and at linking
4573     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4574     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4575   else
4576     error_exit "SafeStack not supported by your compiler"
4577   fi
4578   if test "$coroutine" != "ucontext"; then
4579     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4580   fi
4581 else
4582 cat > $TMPC << EOF
4583 int main(int argc, char *argv[])
4584 {
4585 #if defined(__has_feature)
4586 #if __has_feature(safe_stack)
4587 #error SafeStack Enabled
4588 #endif
4589 #endif
4590     return 0;
4591 }
4592 EOF
4593 if test "$safe_stack" = "no"; then
4594   # Make sure that safe-stack is disabled
4595   if ! compile_prog "-Werror" ""; then
4596     # SafeStack was already enabled, try to explicitly remove the feature
4597     flag="-fno-sanitize=safe-stack"
4598     if ! compile_prog "-Werror $flag" "$flag"; then
4599       error_exit "Configure cannot disable SafeStack"
4600     fi
4601     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4602     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4603   fi
4604 else # "$safe_stack" = ""
4605   # Set safe_stack to yes or no based on pre-existing flags
4606   if compile_prog "-Werror" ""; then
4607     safe_stack="no"
4608   else
4609     safe_stack="yes"
4610     if test "$coroutine" != "ucontext"; then
4611       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4612     fi
4613   fi
4614 fi
4615 fi
4616
4617 ##########################################
4618 # check if we have open_by_handle_at
4619
4620 open_by_handle_at=no
4621 cat > $TMPC << EOF
4622 #include <fcntl.h>
4623 #if !defined(AT_EMPTY_PATH)
4624 # error missing definition
4625 #else
4626 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4627 #endif
4628 EOF
4629 if compile_prog "" "" ; then
4630     open_by_handle_at=yes
4631 fi
4632
4633 ########################################
4634 # check if we have linux/magic.h
4635
4636 linux_magic_h=no
4637 cat > $TMPC << EOF
4638 #include <linux/magic.h>
4639 int main(void) {
4640   return 0;
4641 }
4642 EOF
4643 if compile_prog "" "" ; then
4644     linux_magic_h=yes
4645 fi
4646
4647 ########################################
4648 # check if we have valgrind/valgrind.h
4649
4650 valgrind_h=no
4651 cat > $TMPC << EOF
4652 #include <valgrind/valgrind.h>
4653 int main(void) {
4654   return 0;
4655 }
4656 EOF
4657 if compile_prog "" "" ; then
4658     valgrind_h=yes
4659 fi
4660
4661 ########################################
4662 # check if environ is declared
4663
4664 has_environ=no
4665 cat > $TMPC << EOF
4666 #include <unistd.h>
4667 int main(void) {
4668     environ = 0;
4669     return 0;
4670 }
4671 EOF
4672 if compile_prog "" "" ; then
4673     has_environ=yes
4674 fi
4675
4676 ########################################
4677 # check if cpuid.h is usable.
4678
4679 cat > $TMPC << EOF
4680 #include <cpuid.h>
4681 int main(void) {
4682     unsigned a, b, c, d;
4683     int max = __get_cpuid_max(0, 0);
4684
4685     if (max >= 1) {
4686         __cpuid(1, a, b, c, d);
4687     }
4688
4689     if (max >= 7) {
4690         __cpuid_count(7, 0, a, b, c, d);
4691     }
4692
4693     return 0;
4694 }
4695 EOF
4696 if compile_prog "" "" ; then
4697     cpuid_h=yes
4698 fi
4699
4700 ##########################################
4701 # avx2 optimization requirement check
4702 #
4703 # There is no point enabling this if cpuid.h is not usable,
4704 # since we won't be able to select the new routines.
4705
4706 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4707   cat > $TMPC << EOF
4708 #pragma GCC push_options
4709 #pragma GCC target("avx2")
4710 #include <cpuid.h>
4711 #include <immintrin.h>
4712 static int bar(void *a) {
4713     __m256i x = *(__m256i *)a;
4714     return _mm256_testz_si256(x, x);
4715 }
4716 int main(int argc, char *argv[]) { return bar(argv[0]); }
4717 EOF
4718   if compile_object "" ; then
4719     avx2_opt="yes"
4720   else
4721     avx2_opt="no"
4722   fi
4723 fi
4724
4725 ##########################################
4726 # avx512f optimization requirement check
4727 #
4728 # There is no point enabling this if cpuid.h is not usable,
4729 # since we won't be able to select the new routines.
4730 # by default, it is turned off.
4731 # if user explicitly want to enable it, check environment
4732
4733 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4734   cat > $TMPC << EOF
4735 #pragma GCC push_options
4736 #pragma GCC target("avx512f")
4737 #include <cpuid.h>
4738 #include <immintrin.h>
4739 static int bar(void *a) {
4740     __m512i x = *(__m512i *)a;
4741     return _mm512_test_epi64_mask(x, x);
4742 }
4743 int main(int argc, char *argv[])
4744 {
4745         return bar(argv[0]);
4746 }
4747 EOF
4748   if ! compile_object "" ; then
4749     avx512f_opt="no"
4750   fi
4751 else
4752   avx512f_opt="no"
4753 fi
4754
4755 ########################################
4756 # check if __[u]int128_t is usable.
4757
4758 int128=no
4759 cat > $TMPC << EOF
4760 __int128_t a;
4761 __uint128_t b;
4762 int main (void) {
4763   a = a + b;
4764   b = a * b;
4765   a = a * a;
4766   return 0;
4767 }
4768 EOF
4769 if compile_prog "" "" ; then
4770     int128=yes
4771 fi
4772
4773 #########################################
4774 # See if 128-bit atomic operations are supported.
4775
4776 atomic128=no
4777 if test "$int128" = "yes"; then
4778   cat > $TMPC << EOF
4779 int main(void)
4780 {
4781   unsigned __int128 x = 0, y = 0;
4782   y = __atomic_load(&x, 0);
4783   __atomic_store(&x, y, 0);
4784   __atomic_compare_exchange(&x, &y, x, 0, 0, 0);
4785   return 0;
4786 }
4787 EOF
4788   if compile_prog "" "" ; then
4789     atomic128=yes
4790   fi
4791 fi
4792
4793 cmpxchg128=no
4794 if test "$int128" = yes && test "$atomic128" = no; then
4795   cat > $TMPC << EOF
4796 int main(void)
4797 {
4798   unsigned __int128 x = 0, y = 0;
4799   __sync_val_compare_and_swap_16(&x, y, x);
4800   return 0;
4801 }
4802 EOF
4803   if compile_prog "" "" ; then
4804     cmpxchg128=yes
4805   fi
4806 fi
4807
4808 #########################################
4809 # See if 64-bit atomic operations are supported.
4810 # Note that without __atomic builtins, we can only
4811 # assume atomic loads/stores max at pointer size.
4812
4813 cat > $TMPC << EOF
4814 #include <stdint.h>
4815 int main(void)
4816 {
4817   uint64_t x = 0, y = 0;
4818 #ifdef __ATOMIC_RELAXED
4819   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4820   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4821   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4822   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4823   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4824 #else
4825   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4826   __sync_lock_test_and_set(&x, y);
4827   __sync_val_compare_and_swap(&x, y, 0);
4828   __sync_fetch_and_add(&x, y);
4829 #endif
4830   return 0;
4831 }
4832 EOF
4833 if compile_prog "" "" ; then
4834   atomic64=yes
4835 fi
4836
4837 #########################################
4838 # See if --dynamic-list is supported by the linker
4839 ld_dynamic_list="no"
4840 if test "$static" = "no" ; then
4841     cat > $TMPTXT <<EOF
4842 {
4843   foo;
4844 };
4845 EOF
4846
4847     cat > $TMPC <<EOF
4848 #include <stdio.h>
4849 void foo(void);
4850
4851 void foo(void)
4852 {
4853   printf("foo\n");
4854 }
4855
4856 int main(void)
4857 {
4858   foo();
4859   return 0;
4860 }
4861 EOF
4862
4863     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4864         ld_dynamic_list="yes"
4865     fi
4866 fi
4867
4868 #########################################
4869 # See if -exported_symbols_list is supported by the linker
4870
4871 ld_exported_symbols_list="no"
4872 if test "$static" = "no" ; then
4873     cat > $TMPTXT <<EOF
4874   _foo
4875 EOF
4876
4877     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4878         ld_exported_symbols_list="yes"
4879     fi
4880 fi
4881
4882 if  test "$plugins" = "yes" &&
4883     test "$ld_dynamic_list" = "no" &&
4884     test "$ld_exported_symbols_list" = "no" ; then
4885   error_exit \
4886       "Plugin support requires dynamic linking and specifying a set of symbols " \
4887       "that are exported to plugins. Unfortunately your linker doesn't " \
4888       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4889       "for this purpose. You can't build with --static."
4890 fi
4891
4892 ########################################
4893 # check if getauxval is available.
4894
4895 getauxval=no
4896 cat > $TMPC << EOF
4897 #include <sys/auxv.h>
4898 int main(void) {
4899   return getauxval(AT_HWCAP) == 0;
4900 }
4901 EOF
4902 if compile_prog "" "" ; then
4903     getauxval=yes
4904 fi
4905
4906 ########################################
4907 # check if ccache is interfering with
4908 # semantic analysis of macros
4909
4910 unset CCACHE_CPP2
4911 ccache_cpp2=no
4912 cat > $TMPC << EOF
4913 static const int Z = 1;
4914 #define fn() ({ Z; })
4915 #define TAUT(X) ((X) == Z)
4916 #define PAREN(X, Y) (X == Y)
4917 #define ID(X) (X)
4918 int main(int argc, char *argv[])
4919 {
4920     int x = 0, y = 0;
4921     x = ID(x);
4922     x = fn();
4923     fn();
4924     if (PAREN(x, y)) return 0;
4925     if (TAUT(Z)) return 0;
4926     return 0;
4927 }
4928 EOF
4929
4930 if ! compile_object "-Werror"; then
4931     ccache_cpp2=yes
4932 fi
4933
4934 #################################################
4935 # clang does not support glibc + FORTIFY_SOURCE.
4936
4937 if test "$fortify_source" != "no"; then
4938   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4939     fortify_source="no";
4940   elif test -n "$cxx" && has $cxx &&
4941        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4942     fortify_source="no";
4943   else
4944     fortify_source="yes"
4945   fi
4946 fi
4947
4948 ###############################################
4949 # Check if copy_file_range is provided by glibc
4950 have_copy_file_range=no
4951 cat > $TMPC << EOF
4952 #include <unistd.h>
4953 int main(void) {
4954   copy_file_range(0, NULL, 0, NULL, 0, 0);
4955   return 0;
4956 }
4957 EOF
4958 if compile_prog "" "" ; then
4959     have_copy_file_range=yes
4960 fi
4961
4962 ##########################################
4963 # check if struct fsxattr is available via linux/fs.h
4964
4965 have_fsxattr=no
4966 cat > $TMPC << EOF
4967 #include <linux/fs.h>
4968 struct fsxattr foo;
4969 int main(void) {
4970   return 0;
4971 }
4972 EOF
4973 if compile_prog "" "" ; then
4974     have_fsxattr=yes
4975 fi
4976
4977 ##########################################
4978 # check for usable membarrier system call
4979 if test "$membarrier" = "yes"; then
4980     have_membarrier=no
4981     if test "$mingw32" = "yes" ; then
4982         have_membarrier=yes
4983     elif test "$linux" = "yes" ; then
4984         cat > $TMPC << EOF
4985     #include <linux/membarrier.h>
4986     #include <sys/syscall.h>
4987     #include <unistd.h>
4988     #include <stdlib.h>
4989     int main(void) {
4990         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4991         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4992         exit(0);
4993     }
4994 EOF
4995         if compile_prog "" "" ; then
4996             have_membarrier=yes
4997         fi
4998     fi
4999     if test "$have_membarrier" = "no"; then
5000       feature_not_found "membarrier" "membarrier system call not available"
5001     fi
5002 else
5003     # Do not enable it by default even for Mingw32, because it doesn't
5004     # work on Wine.
5005     membarrier=no
5006 fi
5007
5008 ##########################################
5009 # check if rtnetlink.h exists and is useful
5010 have_rtnetlink=no
5011 cat > $TMPC << EOF
5012 #include <linux/rtnetlink.h>
5013 int main(void) {
5014   return IFLA_PROTO_DOWN;
5015 }
5016 EOF
5017 if compile_prog "" "" ; then
5018     have_rtnetlink=yes
5019 fi
5020
5021 ##########################################
5022 # check for usable AF_VSOCK environment
5023 have_af_vsock=no
5024 cat > $TMPC << EOF
5025 #include <errno.h>
5026 #include <sys/types.h>
5027 #include <sys/socket.h>
5028 #if !defined(AF_VSOCK)
5029 # error missing AF_VSOCK flag
5030 #endif
5031 #include <linux/vm_sockets.h>
5032 int main(void) {
5033     int sock, ret;
5034     struct sockaddr_vm svm;
5035     socklen_t len = sizeof(svm);
5036     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5037     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5038     if ((ret == -1) && (errno == ENOTCONN)) {
5039         return 0;
5040     }
5041     return -1;
5042 }
5043 EOF
5044 if compile_prog "" "" ; then
5045     have_af_vsock=yes
5046 fi
5047
5048 ##########################################
5049 # check for usable AF_ALG environment
5050 have_afalg=no
5051 cat > $TMPC << EOF
5052 #include <errno.h>
5053 #include <sys/types.h>
5054 #include <sys/socket.h>
5055 #include <linux/if_alg.h>
5056 int main(void) {
5057     int sock;
5058     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5059     return sock;
5060 }
5061 EOF
5062 if compile_prog "" "" ; then
5063     have_afalg=yes
5064 fi
5065 if test "$crypto_afalg" = "yes"
5066 then
5067     if test "$have_afalg" != "yes"
5068     then
5069         error_exit "AF_ALG requested but could not be detected"
5070     fi
5071 fi
5072
5073
5074 #################################################
5075 # check for sysmacros.h
5076
5077 have_sysmacros=no
5078 cat > $TMPC << EOF
5079 #include <sys/sysmacros.h>
5080 int main(void) {
5081     return makedev(0, 0);
5082 }
5083 EOF
5084 if compile_prog "" "" ; then
5085     have_sysmacros=yes
5086 fi
5087
5088 ##########################################
5089 # check for _Static_assert()
5090
5091 have_static_assert=no
5092 cat > $TMPC << EOF
5093 _Static_assert(1, "success");
5094 int main(void) {
5095     return 0;
5096 }
5097 EOF
5098 if compile_prog "" "" ; then
5099     have_static_assert=yes
5100 fi
5101
5102 ##########################################
5103 # check for utmpx.h, it is missing e.g. on OpenBSD
5104
5105 have_utmpx=no
5106 cat > $TMPC << EOF
5107 #include <utmpx.h>
5108 struct utmpx user_info;
5109 int main(void) {
5110     return 0;
5111 }
5112 EOF
5113 if compile_prog "" "" ; then
5114     have_utmpx=yes
5115 fi
5116
5117 ##########################################
5118 # check for getrandom()
5119
5120 have_getrandom=no
5121 cat > $TMPC << EOF
5122 #include <sys/random.h>
5123 int main(void) {
5124     return getrandom(0, 0, GRND_NONBLOCK);
5125 }
5126 EOF
5127 if compile_prog "" "" ; then
5128     have_getrandom=yes
5129 fi
5130
5131 ##########################################
5132 # checks for sanitizers
5133
5134 have_asan=no
5135 have_ubsan=no
5136 have_asan_iface_h=no
5137 have_asan_iface_fiber=no
5138
5139 if test "$sanitizers" = "yes" ; then
5140   write_c_skeleton
5141   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5142       have_asan=yes
5143   fi
5144
5145   # we could use a simple skeleton for flags checks, but this also
5146   # detect the static linking issue of ubsan, see also:
5147   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5148   cat > $TMPC << EOF
5149 #include <stdlib.h>
5150 int main(void) {
5151     void *tmp = malloc(10);
5152     if (tmp != NULL) {
5153         return *(int *)(tmp + 2);
5154     }
5155     return 1;
5156 }
5157 EOF
5158   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5159       have_ubsan=yes
5160   fi
5161
5162   if check_include "sanitizer/asan_interface.h" ; then
5163       have_asan_iface_h=yes
5164   fi
5165
5166   cat > $TMPC << EOF
5167 #include <sanitizer/asan_interface.h>
5168 int main(void) {
5169   __sanitizer_start_switch_fiber(0, 0, 0);
5170   return 0;
5171 }
5172 EOF
5173   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5174       have_asan_iface_fiber=yes
5175   fi
5176 fi
5177
5178 ##########################################
5179 # checks for fuzzer
5180 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5181   write_c_fuzzer_skeleton
5182   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5183     have_fuzzer=yes
5184   else
5185     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5186     exit 1
5187   fi
5188 fi
5189
5190 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5191 # keep it separate until that is not the case.
5192 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5193   error_exit "TSAN is not supported with other sanitiziers."
5194 fi
5195 have_tsan=no
5196 have_tsan_iface_fiber=no
5197 if test "$tsan" = "yes" ; then
5198   write_c_skeleton
5199   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5200       have_tsan=yes
5201   fi
5202   cat > $TMPC << EOF
5203 #include <sanitizer/tsan_interface.h>
5204 int main(void) {
5205   __tsan_create_fiber(0);
5206   return 0;
5207 }
5208 EOF
5209   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5210       have_tsan_iface_fiber=yes
5211   fi
5212 fi
5213
5214 ##########################################
5215 # check for libpmem
5216
5217 if test "$libpmem" != "no"; then
5218         if $pkg_config --exists "libpmem"; then
5219                 libpmem="yes"
5220                 libpmem_libs=$($pkg_config --libs libpmem)
5221                 libpmem_cflags=$($pkg_config --cflags libpmem)
5222         else
5223                 if test "$libpmem" = "yes" ; then
5224                         feature_not_found "libpmem" "Install nvml or pmdk"
5225                 fi
5226                 libpmem="no"
5227         fi
5228 fi
5229
5230 ##########################################
5231 # check for libdaxctl
5232
5233 if test "$libdaxctl" != "no"; then
5234         if $pkg_config --atleast-version=57 "libdaxctl"; then
5235                 libdaxctl="yes"
5236                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5237                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5238         else
5239                 if test "$libdaxctl" = "yes" ; then
5240                         feature_not_found "libdaxctl" "Install libdaxctl"
5241                 fi
5242                 libdaxctl="no"
5243         fi
5244 fi
5245
5246 ##########################################
5247 # check for slirp
5248
5249 case "$slirp" in
5250   auto | enabled | internal)
5251     # Simpler to always update submodule, even if not needed.
5252     if test "$git_submodules_action" != "ignore"; then
5253       git_submodules="${git_submodules} slirp"
5254     fi
5255     ;;
5256 esac
5257
5258 ##########################################
5259 # check for usable __NR_keyctl syscall
5260
5261 if test "$linux" = "yes" ; then
5262
5263     have_keyring=no
5264     cat > $TMPC << EOF
5265 #include <errno.h>
5266 #include <asm/unistd.h>
5267 #include <linux/keyctl.h>
5268 #include <unistd.h>
5269 int main(void) {
5270     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5271 }
5272 EOF
5273     if compile_prog "" "" ; then
5274         have_keyring=yes
5275     fi
5276 fi
5277 if test "$secret_keyring" != "no"
5278 then
5279     if test "$have_keyring" = "yes"
5280     then
5281         secret_keyring=yes
5282     else
5283         if test "$secret_keyring" = "yes"
5284         then
5285             error_exit "syscall __NR_keyctl requested, \
5286 but not implemented on your system"
5287         else
5288             secret_keyring=no
5289         fi
5290     fi
5291 fi
5292
5293 ##########################################
5294 # End of CC checks
5295 # After here, no more $cc or $ld runs
5296
5297 write_c_skeleton
5298
5299 if test "$gcov" = "yes" ; then
5300   :
5301 elif test "$fortify_source" = "yes" ; then
5302   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5303   debug=no
5304 fi
5305
5306 case "$ARCH" in
5307 alpha)
5308   # Ensure there's only a single GP
5309   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5310 ;;
5311 esac
5312
5313 if test "$gprof" = "yes" ; then
5314   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5315   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5316 fi
5317
5318 if test "$have_asan" = "yes"; then
5319   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5320   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5321   if test "$have_asan_iface_h" = "no" ; then
5322       echo "ASAN build enabled, but ASAN header missing." \
5323            "Without code annotation, the report may be inferior."
5324   elif test "$have_asan_iface_fiber" = "no" ; then
5325       echo "ASAN build enabled, but ASAN header is too old." \
5326            "Without code annotation, the report may be inferior."
5327   fi
5328 fi
5329 if test "$have_tsan" = "yes" ; then
5330   if test "$have_tsan_iface_fiber" = "yes" ; then
5331     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5332     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5333   else
5334     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5335   fi
5336 elif test "$tsan" = "yes" ; then
5337   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5338 fi
5339 if test "$have_ubsan" = "yes"; then
5340   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5341   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5342 fi
5343
5344 ##########################################
5345
5346 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5347 if test "$solaris" = "no" && test "$tsan" = "no"; then
5348     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5349         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5350     fi
5351 fi
5352
5353 # Use ASLR, no-SEH and DEP if available
5354 if test "$mingw32" = "yes" ; then
5355     flags="--no-seh --nxcompat"
5356
5357     # Disable ASLR for debug builds to allow debugging with gdb
5358     if test "$debug" = "no" ; then
5359         flags="--dynamicbase $flags"
5360     fi
5361
5362     for flag in $flags; do
5363         if ld_has $flag ; then
5364             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5365         fi
5366     done
5367 fi
5368
5369 # We can only support ivshmem if we have eventfd
5370 if [ "$eventfd" = "yes" ]; then
5371   ivshmem=yes
5372 fi
5373
5374 # Probe for guest agent support/options
5375
5376 if [ "$guest_agent" != "no" ]; then
5377   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5378       guest_agent=no
5379   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5380       guest_agent=yes
5381   elif [ "$guest_agent" != yes ]; then
5382       guest_agent=no
5383   else
5384       error_exit "Guest agent is not supported on this platform"
5385   fi
5386 fi
5387
5388 # Guest agent Windows MSI package
5389
5390 if test "$QEMU_GA_MANUFACTURER" = ""; then
5391   QEMU_GA_MANUFACTURER=QEMU
5392 fi
5393 if test "$QEMU_GA_DISTRO" = ""; then
5394   QEMU_GA_DISTRO=Linux
5395 fi
5396 if test "$QEMU_GA_VERSION" = ""; then
5397     QEMU_GA_VERSION=$(cat $source_path/VERSION)
5398 fi
5399
5400 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
5401
5402 # Mac OS X ships with a broken assembler
5403 roms=
5404 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5405         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5406         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5407     # Different host OS linkers have different ideas about the name of the ELF
5408     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5409     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5410     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5411         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5412             ld_i386_emulation="$emu"
5413             roms="optionrom"
5414             break
5415         fi
5416     done
5417 fi
5418
5419 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5420 if test "$cpu" = "s390x" ; then
5421   write_c_skeleton
5422   if compile_prog "-march=z900" ""; then
5423     roms="$roms s390-ccw"
5424     # SLOF is required for building the s390-ccw firmware on s390x,
5425     # since it is using the libnet code from SLOF for network booting.
5426     if test "$git_submodules_action" != "ignore"; then
5427       git_submodules="${git_submodules} roms/SLOF"
5428     fi
5429   fi
5430 fi
5431
5432 # Check that the C++ compiler exists and works with the C compiler.
5433 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5434 if has $cxx; then
5435     cat > $TMPC <<EOF
5436 int c_function(void);
5437 int main(void) { return c_function(); }
5438 EOF
5439
5440     compile_object
5441
5442     cat > $TMPCXX <<EOF
5443 extern "C" {
5444    int c_function(void);
5445 }
5446 int c_function(void) { return 42; }
5447 EOF
5448
5449     update_cxxflags
5450
5451     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5452         # C++ compiler $cxx works ok with C compiler $cc
5453         :
5454     else
5455         echo "C++ compiler $cxx does not work with C compiler $cc"
5456         echo "Disabling C++ specific optional code"
5457         cxx=
5458     fi
5459 else
5460     echo "No C++ compiler available; disabling C++ specific optional code"
5461     cxx=
5462 fi
5463
5464 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
5465     exit 1
5466 fi
5467
5468 config_host_mak="config-host.mak"
5469
5470 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5471 echo >> $config_host_mak
5472
5473 echo all: >> $config_host_mak
5474 echo "GIT=$git" >> $config_host_mak
5475 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5476 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
5477
5478 echo "ARCH=$ARCH" >> $config_host_mak
5479
5480 if test "$debug_tcg" = "yes" ; then
5481   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5482 fi
5483 if test "$strip_opt" = "yes" ; then
5484   echo "STRIP=${strip}" >> $config_host_mak
5485 fi
5486 if test "$bigendian" = "yes" ; then
5487   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5488 fi
5489 if test "$mingw32" = "yes" ; then
5490   echo "CONFIG_WIN32=y" >> $config_host_mak
5491   if test "$guest_agent_with_vss" = "yes" ; then
5492     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5493     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5494     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5495   fi
5496   if test "$guest_agent_ntddscsi" = "yes" ; then
5497     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5498   fi
5499   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5500   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5501   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5502   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5503 else
5504   echo "CONFIG_POSIX=y" >> $config_host_mak
5505 fi
5506
5507 if test "$linux" = "yes" ; then
5508   echo "CONFIG_LINUX=y" >> $config_host_mak
5509 fi
5510
5511 if test "$darwin" = "yes" ; then
5512   echo "CONFIG_DARWIN=y" >> $config_host_mak
5513 fi
5514
5515 if test "$solaris" = "yes" ; then
5516   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5517 fi
5518 if test "$haiku" = "yes" ; then
5519   echo "CONFIG_HAIKU=y" >> $config_host_mak
5520 fi
5521 if test "$static" = "yes" ; then
5522   echo "CONFIG_STATIC=y" >> $config_host_mak
5523 fi
5524 if test "$profiler" = "yes" ; then
5525   echo "CONFIG_PROFILER=y" >> $config_host_mak
5526 fi
5527 if test "$want_tools" = "yes" ; then
5528   echo "CONFIG_TOOLS=y" >> $config_host_mak
5529 fi
5530 if test "$guest_agent" = "yes" ; then
5531   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5532 fi
5533 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5534 if test "$vde" = "yes" ; then
5535   echo "CONFIG_VDE=y" >> $config_host_mak
5536   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5537 fi
5538 if test "$netmap" = "yes" ; then
5539   echo "CONFIG_NETMAP=y" >> $config_host_mak
5540 fi
5541 if test "$l2tpv3" = "yes" ; then
5542   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5543 fi
5544 if test "$gprof" = "yes" ; then
5545   echo "CONFIG_GPROF=y" >> $config_host_mak
5546 fi
5547 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5548 for drv in $audio_drv_list; do
5549     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5550     echo "$def=y" >> $config_host_mak
5551 done
5552 if test "$alsa" = "yes" ; then
5553     echo "CONFIG_ALSA=y" >> $config_host_mak
5554 fi
5555 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5556 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5557 if test "$libpulse" = "yes" ; then
5558     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5559 fi
5560 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5561 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5562 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5563 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5564 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5565 if test "$libjack" = "yes" ; then
5566     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5567 fi
5568 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5569 if test "$audio_win_int" = "yes" ; then
5570   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5571 fi
5572 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5573 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5574 if test "$xfs" = "yes" ; then
5575   echo "CONFIG_XFS=y" >> $config_host_mak
5576 fi
5577 qemu_version=$(head $source_path/VERSION)
5578 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5579 echo "SRC_PATH=$source_path" >> $config_host_mak
5580 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5581 if test "$modules" = "yes"; then
5582   # $shacmd can generate a hash started with digit, which the compiler doesn't
5583   # like as an symbol. So prefix it with an underscore
5584   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5585   echo "CONFIG_MODULES=y" >> $config_host_mak
5586 fi
5587 if test "$module_upgrades" = "yes"; then
5588   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5589 fi
5590 if test "$pipe2" = "yes" ; then
5591   echo "CONFIG_PIPE2=y" >> $config_host_mak
5592 fi
5593 if test "$accept4" = "yes" ; then
5594   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5595 fi
5596 if test "$splice" = "yes" ; then
5597   echo "CONFIG_SPLICE=y" >> $config_host_mak
5598 fi
5599 if test "$eventfd" = "yes" ; then
5600   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5601 fi
5602 if test "$memfd" = "yes" ; then
5603   echo "CONFIG_MEMFD=y" >> $config_host_mak
5604 fi
5605 if test "$have_usbfs" = "yes" ; then
5606   echo "CONFIG_USBFS=y" >> $config_host_mak
5607 fi
5608 if test "$fallocate" = "yes" ; then
5609   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5610 fi
5611 if test "$fallocate_punch_hole" = "yes" ; then
5612   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5613 fi
5614 if test "$fallocate_zero_range" = "yes" ; then
5615   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5616 fi
5617 if test "$posix_fallocate" = "yes" ; then
5618   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5619 fi
5620 if test "$sync_file_range" = "yes" ; then
5621   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5622 fi
5623 if test "$fiemap" = "yes" ; then
5624   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5625 fi
5626 if test "$dup3" = "yes" ; then
5627   echo "CONFIG_DUP3=y" >> $config_host_mak
5628 fi
5629 if test "$ppoll" = "yes" ; then
5630   echo "CONFIG_PPOLL=y" >> $config_host_mak
5631 fi
5632 if test "$prctl_pr_set_timerslack" = "yes" ; then
5633   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5634 fi
5635 if test "$epoll" = "yes" ; then
5636   echo "CONFIG_EPOLL=y" >> $config_host_mak
5637 fi
5638 if test "$epoll_create1" = "yes" ; then
5639   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5640 fi
5641 if test "$sendfile" = "yes" ; then
5642   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5643 fi
5644 if test "$timerfd" = "yes" ; then
5645   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5646 fi
5647 if test "$setns" = "yes" ; then
5648   echo "CONFIG_SETNS=y" >> $config_host_mak
5649 fi
5650 if test "$clock_adjtime" = "yes" ; then
5651   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5652 fi
5653 if test "$syncfs" = "yes" ; then
5654   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5655 fi
5656 if test "$inotify" = "yes" ; then
5657   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5658 fi
5659 if test "$inotify1" = "yes" ; then
5660   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5661 fi
5662 if test "$sem_timedwait" = "yes" ; then
5663   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5664 fi
5665 if test "$strchrnul" = "yes" ; then
5666   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5667 fi
5668 if test "$st_atim" = "yes" ; then
5669   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5670 fi
5671 if test "$byteswap_h" = "yes" ; then
5672   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5673 fi
5674 if test "$bswap_h" = "yes" ; then
5675   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5676 fi
5677 if test "$gio" = "yes" ; then
5678     echo "CONFIG_GIO=y" >> $config_host_mak
5679     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5680     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5681     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5682 fi
5683 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5684 if test "$gnutls" = "yes" ; then
5685   echo "CONFIG_GNUTLS=y" >> $config_host_mak
5686   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
5687   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
5688 fi
5689 if test "$gcrypt" = "yes" ; then
5690   echo "CONFIG_GCRYPT=y" >> $config_host_mak
5691   if test "$gcrypt_hmac" = "yes" ; then
5692     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
5693   fi
5694   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
5695   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
5696 fi
5697 if test "$nettle" = "yes" ; then
5698   echo "CONFIG_NETTLE=y" >> $config_host_mak
5699   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
5700   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
5701   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
5702 fi
5703 if test "$qemu_private_xts" = "yes" ; then
5704   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
5705 fi
5706 if test "$tasn1" = "yes" ; then
5707   echo "CONFIG_TASN1=y" >> $config_host_mak
5708 fi
5709 if test "$auth_pam" = "yes" ; then
5710     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
5711 fi
5712 if test "$have_broken_size_max" = "yes" ; then
5713     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5714 fi
5715 if test "$have_openpty" = "yes" ; then
5716     echo "HAVE_OPENPTY=y" >> $config_host_mak
5717 fi
5718
5719 # Work around a system header bug with some kernel/XFS header
5720 # versions where they both try to define 'struct fsxattr':
5721 # xfs headers will not try to redefine structs from linux headers
5722 # if this macro is set.
5723 if test "$have_fsxattr" = "yes" ; then
5724     echo "HAVE_FSXATTR=y" >> $config_host_mak
5725 fi
5726 if test "$have_copy_file_range" = "yes" ; then
5727     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5728 fi
5729 if test "$vte" = "yes" ; then
5730   echo "CONFIG_VTE=y" >> $config_host_mak
5731   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
5732   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
5733 fi
5734 if test "$virglrenderer" = "yes" ; then
5735   echo "CONFIG_VIRGL=y" >> $config_host_mak
5736   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
5737   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
5738 fi
5739 if test "$xen" = "enabled" ; then
5740   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5741   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5742   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5743   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5744 fi
5745 if test "$linux_aio" = "yes" ; then
5746   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5747 fi
5748 if test "$linux_io_uring" = "yes" ; then
5749   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
5750   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
5751   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
5752 fi
5753 if test "$vhost_scsi" = "yes" ; then
5754   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5755 fi
5756 if test "$vhost_net" = "yes" ; then
5757   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5758 fi
5759 if test "$vhost_net_user" = "yes" ; then
5760   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5761 fi
5762 if test "$vhost_net_vdpa" = "yes" ; then
5763   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5764 fi
5765 if test "$vhost_crypto" = "yes" ; then
5766   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5767 fi
5768 if test "$vhost_vsock" = "yes" ; then
5769   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5770   if test "$vhost_user" = "yes" ; then
5771     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5772   fi
5773 fi
5774 if test "$vhost_kernel" = "yes" ; then
5775   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5776 fi
5777 if test "$vhost_user" = "yes" ; then
5778   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5779 fi
5780 if test "$vhost_vdpa" = "yes" ; then
5781   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5782 fi
5783 if test "$vhost_user_fs" = "yes" ; then
5784   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5785 fi
5786 if test "$iovec" = "yes" ; then
5787   echo "CONFIG_IOVEC=y" >> $config_host_mak
5788 fi
5789 if test "$membarrier" = "yes" ; then
5790   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5791 fi
5792 if test "$signalfd" = "yes" ; then
5793   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5794 fi
5795 if test "$optreset" = "yes" ; then
5796   echo "HAVE_OPTRESET=y" >> $config_host_mak
5797 fi
5798 if test "$fdatasync" = "yes" ; then
5799   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5800 fi
5801 if test "$madvise" = "yes" ; then
5802   echo "CONFIG_MADVISE=y" >> $config_host_mak
5803 fi
5804 if test "$posix_madvise" = "yes" ; then
5805   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5806 fi
5807 if test "$posix_memalign" = "yes" ; then
5808   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5809 fi
5810 if test "$spice" = "yes" ; then
5811   echo "CONFIG_SPICE=y" >> $config_host_mak
5812   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
5813   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5814 fi
5815
5816 if test "$smartcard" = "yes" ; then
5817   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
5818   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
5819   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
5820 fi
5821
5822 if test "$libusb" = "yes" ; then
5823   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
5824   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
5825   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
5826 fi
5827
5828 if test "$usb_redir" = "yes" ; then
5829   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
5830   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
5831   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
5832 fi
5833
5834 if test "$opengl" = "yes" ; then
5835   echo "CONFIG_OPENGL=y" >> $config_host_mak
5836   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5837   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5838 fi
5839
5840 if test "$gbm" = "yes" ; then
5841     echo "CONFIG_GBM=y" >> $config_host_mak
5842     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5843     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5844 fi
5845
5846
5847 if test "$avx2_opt" = "yes" ; then
5848   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5849 fi
5850
5851 if test "$avx512f_opt" = "yes" ; then
5852   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5853 fi
5854
5855 # XXX: suppress that
5856 if [ "$bsd" = "yes" ] ; then
5857   echo "CONFIG_BSD=y" >> $config_host_mak
5858 fi
5859
5860 if test "$qom_cast_debug" = "yes" ; then
5861   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5862 fi
5863
5864 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5865 if test "$coroutine_pool" = "yes" ; then
5866   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5867 else
5868   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5869 fi
5870
5871 if test "$debug_stack_usage" = "yes" ; then
5872   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5873 fi
5874
5875 if test "$crypto_afalg" = "yes" ; then
5876   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5877 fi
5878
5879 if test "$open_by_handle_at" = "yes" ; then
5880   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5881 fi
5882
5883 if test "$linux_magic_h" = "yes" ; then
5884   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5885 fi
5886
5887 if test "$valgrind_h" = "yes" ; then
5888   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5889 fi
5890
5891 if test "$have_asan_iface_fiber" = "yes" ; then
5892     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5893 fi
5894
5895 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5896     echo "CONFIG_TSAN=y" >> $config_host_mak
5897 fi
5898
5899 if test "$has_environ" = "yes" ; then
5900   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5901 fi
5902
5903 if test "$cpuid_h" = "yes" ; then
5904   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5905 fi
5906
5907 if test "$int128" = "yes" ; then
5908   echo "CONFIG_INT128=y" >> $config_host_mak
5909 fi
5910
5911 if test "$atomic128" = "yes" ; then
5912   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5913 fi
5914
5915 if test "$cmpxchg128" = "yes" ; then
5916   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5917 fi
5918
5919 if test "$atomic64" = "yes" ; then
5920   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5921 fi
5922
5923 if test "$getauxval" = "yes" ; then
5924   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5925 fi
5926
5927 if test "$libssh" = "yes" ; then
5928   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5929   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5930   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5931 fi
5932
5933 if test "$live_block_migration" = "yes" ; then
5934   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5935 fi
5936
5937 if test "$tpm" = "yes"; then
5938   echo 'CONFIG_TPM=y' >> $config_host_mak
5939 fi
5940
5941 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5942 if have_backend "nop"; then
5943   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
5944 fi
5945 if have_backend "simple"; then
5946   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
5947   # Set the appropriate trace file.
5948   trace_file="\"$trace_file-\" FMT_pid"
5949 fi
5950 if have_backend "log"; then
5951   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
5952 fi
5953 if have_backend "ust"; then
5954   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
5955   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
5956   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
5957 fi
5958 if have_backend "dtrace"; then
5959   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
5960   if test "$trace_backend_stap" = "yes" ; then
5961     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
5962   fi
5963 fi
5964 if have_backend "ftrace"; then
5965   if test "$linux" = "yes" ; then
5966     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
5967   else
5968     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
5969   fi
5970 fi
5971 if have_backend "syslog"; then
5972   if test "$posix_syslog" = "yes" ; then
5973     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
5974   else
5975     feature_not_found "syslog(trace backend)" "syslog not available"
5976   fi
5977 fi
5978 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
5979
5980 if test "$rdma" = "yes" ; then
5981   echo "CONFIG_RDMA=y" >> $config_host_mak
5982   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
5983 fi
5984
5985 if test "$pvrdma" = "yes" ; then
5986   echo "CONFIG_PVRDMA=y" >> $config_host_mak
5987 fi
5988
5989 if test "$have_rtnetlink" = "yes" ; then
5990   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
5991 fi
5992
5993 if test "$libxml2" = "yes" ; then
5994   echo "CONFIG_LIBXML2=y" >> $config_host_mak
5995   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
5996   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
5997 fi
5998
5999 if test "$replication" = "yes" ; then
6000   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6001 fi
6002
6003 if test "$have_af_vsock" = "yes" ; then
6004   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6005 fi
6006
6007 if test "$have_sysmacros" = "yes" ; then
6008   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6009 fi
6010
6011 if test "$have_static_assert" = "yes" ; then
6012   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6013 fi
6014
6015 if test "$have_utmpx" = "yes" ; then
6016   echo "HAVE_UTMPX=y" >> $config_host_mak
6017 fi
6018 if test "$have_getrandom" = "yes" ; then
6019   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6020 fi
6021 if test "$ivshmem" = "yes" ; then
6022   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6023 fi
6024 if test "$debug_mutex" = "yes" ; then
6025   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6026 fi
6027
6028 # Hold two types of flag:
6029 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6030 #                                     a thread we have a handle to
6031 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6032 #                                     platform
6033 if test "$pthread_setname_np_w_tid" = "yes" ; then
6034   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6035   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6036 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6037   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6038   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6039 fi
6040
6041 if test "$libpmem" = "yes" ; then
6042   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6043   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6044   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6045 fi
6046
6047 if test "$libdaxctl" = "yes" ; then
6048   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6049   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6050 fi
6051
6052 if test "$bochs" = "yes" ; then
6053   echo "CONFIG_BOCHS=y" >> $config_host_mak
6054 fi
6055 if test "$cloop" = "yes" ; then
6056   echo "CONFIG_CLOOP=y" >> $config_host_mak
6057 fi
6058 if test "$dmg" = "yes" ; then
6059   echo "CONFIG_DMG=y" >> $config_host_mak
6060 fi
6061 if test "$qcow1" = "yes" ; then
6062   echo "CONFIG_QCOW1=y" >> $config_host_mak
6063 fi
6064 if test "$vdi" = "yes" ; then
6065   echo "CONFIG_VDI=y" >> $config_host_mak
6066 fi
6067 if test "$vvfat" = "yes" ; then
6068   echo "CONFIG_VVFAT=y" >> $config_host_mak
6069 fi
6070 if test "$qed" = "yes" ; then
6071   echo "CONFIG_QED=y" >> $config_host_mak
6072 fi
6073 if test "$parallels" = "yes" ; then
6074   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6075 fi
6076 if test "$sheepdog" = "yes" ; then
6077   add_to deprecated_features "sheepdog"
6078   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6079 fi
6080 if test "$have_mlockall" = "yes" ; then
6081   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6082 fi
6083 if test "$fuzzing" = "yes" ; then
6084   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6085   # needed CFLAGS have already been provided
6086   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6087     # Add CFLAGS to tell clang to add fuzzer-related instrumentation to all the
6088     # compiled code.
6089     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6090     # To build non-fuzzer binaries with --enable-fuzzing, link everything with
6091     # fsanitize=fuzzer-no-link. Otherwise, the linker will be unable to bind
6092     # the fuzzer-related callbacks added by instrumentation.
6093     QEMU_LDFLAGS="$QEMU_LDFLAGS -fsanitize=fuzzer-no-link"
6094     # For the actual fuzzer binaries, we need to link against the libfuzzer
6095     # library. Provide the flags for doing this in FUZZ_EXE_LDFLAGS. The meson
6096     # rule for the fuzzer adds these to the link_args. They need to be
6097     # configurable, to support OSS-Fuzz
6098     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6099   else
6100     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6101   fi
6102 fi
6103
6104 if test "$plugins" = "yes" ; then
6105     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6106     # Copy the export object list to the build dir
6107     if test "$ld_dynamic_list" = "yes" ; then
6108         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6109         ld_symbols=qemu-plugins-ld.symbols
6110         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6111     elif test "$ld_exported_symbols_list" = "yes" ; then
6112         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6113         ld64_symbols=qemu-plugins-ld64.symbols
6114         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6115         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6116             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6117     else
6118         error_exit \
6119             "If \$plugins=yes, either \$ld_dynamic_list or " \
6120             "\$ld_exported_symbols_list should have been set to 'yes'."
6121     fi
6122 fi
6123
6124 if test -n "$gdb_bin"; then
6125     gdb_version=$($gdb_bin --version | head -n 1)
6126     if version_ge ${gdb_version##* } 9.1; then
6127         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6128     fi
6129 fi
6130
6131 if test "$secret_keyring" = "yes" ; then
6132   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6133 fi
6134
6135 echo "ROMS=$roms" >> $config_host_mak
6136 echo "MAKE=$make" >> $config_host_mak
6137 echo "PYTHON=$python" >> $config_host_mak
6138 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6139 echo "MESON=$meson" >> $config_host_mak
6140 echo "NINJA=$ninja" >> $config_host_mak
6141 echo "CC=$cc" >> $config_host_mak
6142 if $iasl -h > /dev/null 2>&1; then
6143   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6144 fi
6145 echo "CXX=$cxx" >> $config_host_mak
6146 echo "OBJCC=$objcc" >> $config_host_mak
6147 echo "AR=$ar" >> $config_host_mak
6148 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6149 echo "AS=$as" >> $config_host_mak
6150 echo "CCAS=$ccas" >> $config_host_mak
6151 echo "CPP=$cpp" >> $config_host_mak
6152 echo "OBJCOPY=$objcopy" >> $config_host_mak
6153 echo "LD=$ld" >> $config_host_mak
6154 echo "RANLIB=$ranlib" >> $config_host_mak
6155 echo "NM=$nm" >> $config_host_mak
6156 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6157 echo "WINDRES=$windres" >> $config_host_mak
6158 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6159 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6160 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6161 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6162 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6163 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6164 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6165 echo "EXESUF=$EXESUF" >> $config_host_mak
6166 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6167 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6168 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6169 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6170 if test "$gcov" = "yes" ; then
6171   echo "CONFIG_GCOV=y" >> $config_host_mak
6172 fi
6173
6174 if test "$fuzzing" != "no"; then
6175     echo "CONFIG_FUZZ=y" >> $config_host_mak
6176 fi
6177 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6178
6179 if test "$rng_none" = "yes"; then
6180   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6181 fi
6182
6183 # use included Linux headers
6184 if test "$linux" = "yes" ; then
6185   mkdir -p linux-headers
6186   case "$cpu" in
6187   i386|x86_64|x32)
6188     linux_arch=x86
6189     ;;
6190   ppc|ppc64|ppc64le)
6191     linux_arch=powerpc
6192     ;;
6193   s390x)
6194     linux_arch=s390
6195     ;;
6196   aarch64)
6197     linux_arch=arm64
6198     ;;
6199   mips64)
6200     linux_arch=mips
6201     ;;
6202   *)
6203     # For most CPUs the kernel architecture name and QEMU CPU name match.
6204     linux_arch="$cpu"
6205     ;;
6206   esac
6207     # For non-KVM architectures we will not have asm headers
6208     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6209       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6210     fi
6211 fi
6212
6213 for target in $target_list; do
6214     target_dir="$target"
6215     target_name=$(echo $target | cut -d '-' -f 1)
6216     mkdir -p $target_dir
6217     case $target in
6218         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6219         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6220     esac
6221 done
6222
6223 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6224 if test "$default_targets" = "yes"; then
6225   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6226 fi
6227
6228 if test "$numa" = "yes"; then
6229   echo "CONFIG_NUMA=y" >> $config_host_mak
6230   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6231 fi
6232
6233 if test "$ccache_cpp2" = "yes"; then
6234   echo "export CCACHE_CPP2=y" >> $config_host_mak
6235 fi
6236
6237 if test "$safe_stack" = "yes"; then
6238   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6239 fi
6240
6241 # If we're using a separate build tree, set it up now.
6242 # DIRS are directories which we simply mkdir in the build tree;
6243 # LINKS are things to symlink back into the source tree
6244 # (these can be both files and directories).
6245 # Caution: do not add files or directories here using wildcards. This
6246 # will result in problems later if a new file matching the wildcard is
6247 # added to the source tree -- nothing will cause configure to be rerun
6248 # so the build tree will be missing the link back to the new file, and
6249 # tests might fail. Prefer to keep the relevant files in their own
6250 # directory and symlink the directory instead.
6251 # UNLINK is used to remove symlinks from older development versions
6252 # that might get into the way when doing "git update" without doing
6253 # a "make distclean" in between.
6254 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6255 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6256 DIRS="$DIRS docs docs/interop fsdev scsi"
6257 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6258 DIRS="$DIRS roms/seabios"
6259 DIRS="$DIRS contrib/plugins/"
6260 LINKS="Makefile"
6261 LINKS="$LINKS tests/tcg/lm32/Makefile"
6262 LINKS="$LINKS tests/tcg/Makefile.target"
6263 LINKS="$LINKS pc-bios/optionrom/Makefile"
6264 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6265 LINKS="$LINKS roms/seabios/Makefile"
6266 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6267 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6268 LINKS="$LINKS tests/acceptance tests/data"
6269 LINKS="$LINKS tests/qemu-iotests/check"
6270 LINKS="$LINKS python"
6271 LINKS="$LINKS contrib/plugins/Makefile "
6272 UNLINK="pc-bios/keymaps"
6273 for bios_file in \
6274     $source_path/pc-bios/*.bin \
6275     $source_path/pc-bios/*.elf \
6276     $source_path/pc-bios/*.lid \
6277     $source_path/pc-bios/*.rom \
6278     $source_path/pc-bios/*.dtb \
6279     $source_path/pc-bios/*.img \
6280     $source_path/pc-bios/openbios-* \
6281     $source_path/pc-bios/u-boot.* \
6282     $source_path/pc-bios/edk2-*.fd.bz2 \
6283     $source_path/pc-bios/palcode-*
6284 do
6285     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6286 done
6287 mkdir -p $DIRS
6288 for f in $LINKS ; do
6289     if [ -e "$source_path/$f" ]; then
6290         symlink "$source_path/$f" "$f"
6291     fi
6292 done
6293 for f in $UNLINK ; do
6294     if [ -L "$f" ]; then
6295         rm -f "$f"
6296     fi
6297 done
6298
6299 (for i in $cross_cc_vars; do
6300   export $i
6301 done
6302 export target_list source_path use_containers ARCH
6303 $source_path/tests/tcg/configure.sh)
6304
6305 # temporary config to build submodules
6306 for rom in seabios; do
6307     config_mak=roms/$rom/config.mak
6308     echo "# Automatically generated by configure - do not modify" > $config_mak
6309     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6310     echo "AS=$as" >> $config_mak
6311     echo "CCAS=$ccas" >> $config_mak
6312     echo "CC=$cc" >> $config_mak
6313     echo "BCC=bcc" >> $config_mak
6314     echo "CPP=$cpp" >> $config_mak
6315     echo "OBJCOPY=objcopy" >> $config_mak
6316     echo "IASL=$iasl" >> $config_mak
6317     echo "LD=$ld" >> $config_mak
6318     echo "RANLIB=$ranlib" >> $config_mak
6319 done
6320
6321 if test "$skip_meson" = no; then
6322 cross="config-meson.cross.new"
6323 meson_quote() {
6324     echo "'$(echo $* | sed "s/ /','/g")'"
6325 }
6326
6327 echo "# Automatically generated by configure - do not modify" > $cross
6328 echo "[properties]" >> $cross
6329 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6330 echo "[built-in options]" >> $cross
6331 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6332 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6333 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6334 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6335 echo "[binaries]" >> $cross
6336 echo "c = [$(meson_quote $cc)]" >> $cross
6337 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6338 test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
6339 echo "ar = [$(meson_quote $ar)]" >> $cross
6340 echo "nm = [$(meson_quote $nm)]" >> $cross
6341 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6342 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6343 if has $sdl2_config; then
6344   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6345 fi
6346 echo "strip = [$(meson_quote $strip)]" >> $cross
6347 echo "windres = [$(meson_quote $windres)]" >> $cross
6348 if test "$cross_compile" = "yes"; then
6349     cross_arg="--cross-file config-meson.cross"
6350     echo "[host_machine]" >> $cross
6351     if test "$mingw32" = "yes" ; then
6352         echo "system = 'windows'" >> $cross
6353     fi
6354     if test "$linux" = "yes" ; then
6355         echo "system = 'linux'" >> $cross
6356     fi
6357     if test "$darwin" = "yes" ; then
6358         echo "system = 'darwin'" >> $cross
6359     fi
6360     case "$ARCH" in
6361         i386)
6362             echo "cpu_family = 'x86'" >> $cross
6363             ;;
6364         x86_64)
6365             echo "cpu_family = 'x86_64'" >> $cross
6366             ;;
6367         ppc64le)
6368             echo "cpu_family = 'ppc64'" >> $cross
6369             ;;
6370         *)
6371             echo "cpu_family = '$ARCH'" >> $cross
6372             ;;
6373     esac
6374     echo "cpu = '$cpu'" >> $cross
6375     if test "$bigendian" = "yes" ; then
6376         echo "endian = 'big'" >> $cross
6377     else
6378         echo "endian = 'little'" >> $cross
6379     fi
6380 else
6381     cross_arg="--native-file config-meson.cross"
6382 fi
6383 mv $cross config-meson.cross
6384
6385 rm -rf meson-private meson-info meson-logs
6386 unset staticpic
6387 if ! version_ge "$($meson --version)" 0.56.0; then
6388   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6389 fi
6390 NINJA=$ninja $meson setup \
6391         --prefix "$prefix" \
6392         --libdir "$libdir" \
6393         --libexecdir "$libexecdir" \
6394         --bindir "$bindir" \
6395         --includedir "$includedir" \
6396         --datadir "$datadir" \
6397         --mandir "$mandir" \
6398         --sysconfdir "$sysconfdir" \
6399         --localedir "$localedir" \
6400         --localstatedir "$local_statedir" \
6401         -Ddocdir="$docdir" \
6402         -Dqemu_firmwarepath="$firmwarepath" \
6403         -Dqemu_suffix="$qemu_suffix" \
6404         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6405         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6406         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6407         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6408         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6409         ${staticpic:+-Db_staticpic=$staticpic} \
6410         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6411         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6412         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6413         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6414         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6415         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6416         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6417         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6418         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6419         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6420         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6421         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse \
6422         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6423         -Dattr=$attr -Ddefault_devices=$default_devices \
6424         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6425         -Dvhost_user_blk_server=$vhost_user_blk_server -Dmultiprocess=$multiprocess \
6426         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi \
6427         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6428         -Dtcg_interpreter=$tcg_interpreter \
6429         $cross_arg \
6430         "$PWD" "$source_path"
6431
6432 if test "$?" -ne 0 ; then
6433     error_exit "meson setup failed"
6434 fi
6435 fi
6436
6437 if test -n "${deprecated_features}"; then
6438     echo "Warning, deprecated features enabled."
6439     echo "Please see docs/system/deprecated.rst"
6440     echo "  features: ${deprecated_features}"
6441 fi
6442
6443 # Save the configure command line for later reuse.
6444 cat <<EOD >config.status
6445 #!/bin/sh
6446 # Generated by configure.
6447 # Run this file to recreate the current configuration.
6448 # Compiler output produced by configure, useful for debugging
6449 # configure, is in config.log if it exists.
6450 EOD
6451
6452 preserve_env() {
6453     envname=$1
6454
6455     eval envval=\$$envname
6456
6457     if test -n "$envval"
6458     then
6459         echo "$envname='$envval'" >> config.status
6460         echo "export $envname" >> config.status
6461     else
6462         echo "unset $envname" >> config.status
6463     fi
6464 }
6465
6466 # Preserve various env variables that influence what
6467 # features/build target configure will detect
6468 preserve_env AR
6469 preserve_env AS
6470 preserve_env CC
6471 preserve_env CPP
6472 preserve_env CXX
6473 preserve_env INSTALL
6474 preserve_env LD
6475 preserve_env LD_LIBRARY_PATH
6476 preserve_env LIBTOOL
6477 preserve_env MAKE
6478 preserve_env NM
6479 preserve_env OBJCOPY
6480 preserve_env PATH
6481 preserve_env PKG_CONFIG
6482 preserve_env PKG_CONFIG_LIBDIR
6483 preserve_env PKG_CONFIG_PATH
6484 preserve_env PYTHON
6485 preserve_env SDL2_CONFIG
6486 preserve_env SMBD
6487 preserve_env STRIP
6488 preserve_env WINDRES
6489
6490 printf "exec" >>config.status
6491 for i in "$0" "$@"; do
6492   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6493 done
6494 echo ' "$@"' >>config.status
6495 chmod +x config.status
6496
6497 rm -r "$TMPDIR1"