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     local 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=`echo $1 | 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="$default_feature"
 369 HOST_DSOSUF=".so"
 370 modules="no"
 371 module_upgrades="no"
 372 prefix="/usr/local"
 373 qemu_suffix="qemu"
 374 slirp="auto"
 375 oss_lib=""
 376 bsd="no"
 377 linux="no"
 378 solaris="no"
 379 profiler="no"
 380 cocoa="auto"
 381 softmmu="yes"
 382 linux_user="no"
 383 bsd_user="no"
 384 blobs="true"
 385 pkgversion=""
 386 pie=""
 387 qom_cast_debug="yes"
 388 trace_backends="log"
 389 trace_file="trace"
 390 spice="$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 opengl_dmabuf="no"
 398 cpuid_h="no"
 399 avx2_opt="$default_feature"
 400 capstone="auto"
 401 lzo="auto"
 402 snappy="auto"
 403 bzip2="auto"
 404 lzfse="auto"
 405 zstd="auto"
 406 guest_agent="$default_feature"
 407 guest_agent_with_vss="no"
 408 guest_agent_ntddscsi="no"
 409 guest_agent_msi="auto"
 410 vss_win32_sdk="$default_feature"
 411 win_sdk="no"
 412 want_tools="$default_feature"
 413 libiscsi="auto"
 414 libnfs="auto"
 415 coroutine=""
 416 coroutine_pool="$default_feature"
 417 debug_stack_usage="no"
 418 crypto_afalg="no"
 419 cfi="false"
 420 cfi_debug="false"
 421 seccomp="auto"
 422 glusterfs="auto"
 423 gtk="auto"
 424 tls_priority="NORMAL"
 425 gnutls="$default_feature"
 426 nettle="$default_feature"
 427 nettle_xts="no"
 428 gcrypt="$default_feature"
 429 gcrypt_hmac="no"
 430 gcrypt_xts="no"
 431 qemu_private_xts="yes"
 432 auth_pam="$default_feature"
 433 vte="$default_feature"
 434 virglrenderer="$default_feature"
 435 tpm="$default_feature"
 436 libssh="$default_feature"
 437 live_block_migration=${default_feature:-yes}
 438 numa="$default_feature"
 439 tcmalloc="no"
 440 jemalloc="no"
 441 replication=${default_feature:-yes}
 442 bochs=${default_feature:-yes}
 443 cloop=${default_feature:-yes}
 444 dmg=${default_feature:-yes}
 445 qcow1=${default_feature:-yes}
 446 vdi=${default_feature:-yes}
 447 vvfat=${default_feature:-yes}
 448 qed=${default_feature:-yes}
 449 parallels=${default_feature:-yes}
 450 sheepdog="no"
 451 libxml2="$default_feature"
 452 debug_mutex="no"
 453 libpmem="$default_feature"
 454 default_devices="true"
 455 plugins="no"
 456 fuzzing="no"
 457 rng_none="no"
 458 secret_keyring="$default_feature"
 459 libdaxctl="$default_feature"
 460 meson=""
 461 ninja=""
 462 skip_meson=no
 463 gettext="auto"
 464 fuse="auto"
 465 fuse_lseek="auto"
 466
 467 malloc_trim="auto"
 468
 469 # parse CC options second
 470 for opt do
 471   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 472   case "$opt" in
 473   --cross-prefix=*) cross_prefix="$optarg"
 474                     cross_compile="yes"
 475   ;;
 476   --cc=*) CC="$optarg"
 477   ;;
 478   --cxx=*) CXX="$optarg"
 479   ;;
 480   --cpu=*) cpu="$optarg"
 481   ;;
 482   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 483                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 484   ;;
 485   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 486   ;;
 487   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 488                      EXTRA_LDFLAGS="$optarg"
 489   ;;
 490   --enable-debug-info) debug_info="yes"
 491   ;;
 492   --disable-debug-info) debug_info="no"
 493   ;;
 494   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 495   ;;
 496   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 497                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 498                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 499   ;;
 500   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 501                 cc_archs="$cc_archs $cc_arch"
 502                 eval "cross_cc_${cc_arch}=\$optarg"
 503                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 504   ;;
 505   esac
 506 done
 507 # OS specific
 508 # Using uname is really, really broken.  Once we have the right set of checks
 509 # we can eliminate its usage altogether.
 510
 511 # Preferred compiler:
 512 #  ${CC} (if set)
 513 #  ${cross_prefix}gcc (if cross-prefix specified)
 514 #  system compiler
 515 if test -z "${CC}${cross_prefix}"; then
 516   cc="$host_cc"
 517 else
 518   cc="${CC-${cross_prefix}gcc}"
 519 fi
 520
 521 if test -z "${CXX}${cross_prefix}"; then
 522   cxx="c++"
 523 else
 524   cxx="${CXX-${cross_prefix}g++}"
 525 fi
 526
 527 ar="${AR-${cross_prefix}ar}"
 528 as="${AS-${cross_prefix}as}"
 529 ccas="${CCAS-$cc}"
 530 cpp="${CPP-$cc -E}"
 531 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 532 ld="${LD-${cross_prefix}ld}"
 533 ranlib="${RANLIB-${cross_prefix}ranlib}"
 534 nm="${NM-${cross_prefix}nm}"
 535 strip="${STRIP-${cross_prefix}strip}"
 536 windres="${WINDRES-${cross_prefix}windres}"
 537 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 538 query_pkg_config() {
 539     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 540 }
 541 pkg_config=query_pkg_config
 542 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 543
 544 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 545 ARFLAGS="${ARFLAGS-rv}"
 546
 547 # default flags for all hosts
 548 # We use -fwrapv to tell the compiler that we require a C dialect where
 549 # left shift of signed integers is well defined and has the expected
 550 # 2s-complement style results. (Both clang and gcc agree that it
 551 # provides these semantics.)
 552 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 553 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 554 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 555 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 556
 557 # Flags that are needed during configure but later taken care of by Meson
 558 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 559 CONFIGURE_LDFLAGS=
 560
 561
 562 check_define() {
 563 cat > $TMPC <<EOF
 564 #if !defined($1)
 565 #error $1 not defined
 566 #endif
 567 int main(void) { return 0; }
 568 EOF
 569   compile_object
 570 }
 571
 572 check_include() {
 573 cat > $TMPC <<EOF
 574 #include <$1>
 575 int main(void) { return 0; }
 576 EOF
 577   compile_object
 578 }
 579
 580 write_c_skeleton() {
 581     cat > $TMPC <<EOF
 582 int main(void) { return 0; }
 583 EOF
 584 }
 585
 586 write_c_fuzzer_skeleton() {
 587     cat > $TMPC <<EOF
 588 #include <stdint.h>
 589 #include <sys/types.h>
 590 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 591 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 592 EOF
 593 }
 594
 595 if check_define __linux__ ; then
 596   targetos="Linux"
 597 elif check_define _WIN32 ; then
 598   targetos='MINGW32'
 599 elif check_define __OpenBSD__ ; then
 600   targetos='OpenBSD'
 601 elif check_define __sun__ ; then
 602   targetos='SunOS'
 603 elif check_define __HAIKU__ ; then
 604   targetos='Haiku'
 605 elif check_define __FreeBSD__ ; then
 606   targetos='FreeBSD'
 607 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 608   targetos='GNU/kFreeBSD'
 609 elif check_define __DragonFly__ ; then
 610   targetos='DragonFly'
 611 elif check_define __NetBSD__; then
 612   targetos='NetBSD'
 613 elif check_define __APPLE__; then
 614   targetos='Darwin'
 615 else
 616   # This is a fatal error, but don't report it yet, because we
 617   # might be going to just print the --help text, or it might
 618   # be the result of a missing compiler.
 619   targetos='bogus'
 620 fi
 621
 622 # Some host OSes need non-standard checks for which CPU to use.
 623 # Note that these checks are broken for cross-compilation: if you're
 624 # cross-compiling to one of these OSes then you'll need to specify
 625 # the correct CPU with the --cpu option.
 626 case $targetos in
 627 Darwin)
 628   HOST_DSOSUF=".dylib"
 629   ;;
 630 SunOS)
 631   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 632   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 633     cpu="x86_64"
 634   fi
 635 esac
 636
 637 if test ! -z "$cpu" ; then
 638   # command line argument
 639   :
 640 elif check_define __i386__ ; then
 641   cpu="i386"
 642 elif check_define __x86_64__ ; then
 643   if check_define __ILP32__ ; then
 644     cpu="x32"
 645   else
 646     cpu="x86_64"
 647   fi
 648 elif check_define __sparc__ ; then
 649   if check_define __arch64__ ; then
 650     cpu="sparc64"
 651   else
 652     cpu="sparc"
 653   fi
 654 elif check_define _ARCH_PPC ; then
 655   if check_define _ARCH_PPC64 ; then
 656     if check_define _LITTLE_ENDIAN ; then
 657       cpu="ppc64le"
 658     else
 659       cpu="ppc64"
 660     fi
 661   else
 662     cpu="ppc"
 663   fi
 664 elif check_define __mips__ ; then
 665   cpu="mips"
 666 elif check_define __s390__ ; then
 667   if check_define __s390x__ ; then
 668     cpu="s390x"
 669   else
 670     cpu="s390"
 671   fi
 672 elif check_define __riscv ; then
 673   if check_define _LP64 ; then
 674     cpu="riscv64"
 675   else
 676     cpu="riscv32"
 677   fi
 678 elif check_define __arm__ ; then
 679   cpu="arm"
 680 elif check_define __aarch64__ ; then
 681   cpu="aarch64"
 682 else
 683   cpu=$(uname -m)
 684 fi
 685
 686 ARCH=
 687 # Normalise host CPU name and set ARCH.
 688 # Note that this case should only have supported host CPUs, not guests.
 689 case "$cpu" in
 690   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 691   ;;
 692   ppc64le)
 693     ARCH="ppc64"
 694   ;;
 695   i386|i486|i586|i686|i86pc|BePC)
 696     cpu="i386"
 697   ;;
 698   x86_64|amd64)
 699     cpu="x86_64"
 700   ;;
 701   armv*b|armv*l|arm)
 702     cpu="arm"
 703   ;;
 704   aarch64)
 705     cpu="aarch64"
 706   ;;
 707   mips*)
 708     cpu="mips"
 709   ;;
 710   sparc|sun4[cdmuv])
 711     cpu="sparc"
 712   ;;
 713   *)
 714     # This will result in either an error or falling back to TCI later
 715     ARCH=unknown
 716   ;;
 717 esac
 718 if test -z "$ARCH"; then
 719   ARCH="$cpu"
 720 fi
 721
 722 # OS specific
 723
 724 case $targetos in
 725 MINGW32*)
 726   mingw32="yes"
 727   audio_possible_drivers="dsound sdl"
 728   if check_include dsound.h; then
 729     audio_drv_list="dsound"
 730   else
 731     audio_drv_list=""
 732   fi
 733   supported_os="yes"
 734   pie="no"
 735 ;;
 736 GNU/kFreeBSD)
 737   bsd="yes"
 738   audio_drv_list="oss try-sdl"
 739   audio_possible_drivers="oss sdl pa"
 740 ;;
 741 FreeBSD)
 742   bsd="yes"
 743   make="${MAKE-gmake}"
 744   audio_drv_list="oss try-sdl"
 745   audio_possible_drivers="oss sdl pa"
 746   # needed for kinfo_getvmmap(3) in libutil.h
 747   netmap=""  # enable netmap autodetect
 748 ;;
 749 DragonFly)
 750   bsd="yes"
 751   make="${MAKE-gmake}"
 752   audio_drv_list="oss try-sdl"
 753   audio_possible_drivers="oss sdl pa"
 754 ;;
 755 NetBSD)
 756   bsd="yes"
 757   make="${MAKE-gmake}"
 758   audio_drv_list="oss try-sdl"
 759   audio_possible_drivers="oss sdl"
 760   oss_lib="-lossaudio"
 761 ;;
 762 OpenBSD)
 763   bsd="yes"
 764   make="${MAKE-gmake}"
 765   audio_drv_list="try-sdl"
 766   audio_possible_drivers="sdl"
 767 ;;
 768 Darwin)
 769   bsd="yes"
 770   darwin="yes"
 771   audio_drv_list="try-coreaudio try-sdl"
 772   audio_possible_drivers="coreaudio sdl"
 773   # Disable attempts to use ObjectiveC features in os/object.h since they
 774   # won't work when we're compiling with gcc as a C compiler.
 775   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 776 ;;
 777 SunOS)
 778   solaris="yes"
 779   make="${MAKE-gmake}"
 780   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 781   if test -f /usr/include/sys/soundcard.h ; then
 782     audio_drv_list="oss try-sdl"
 783   fi
 784   audio_possible_drivers="oss sdl"
 785 # needed for CMSG_ macros in sys/socket.h
 786   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 787 # needed for TIOCWIN* defines in termios.h
 788   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 789 ;;
 790 Haiku)
 791   haiku="yes"
 792   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 793 ;;
 794 Linux)
 795   audio_drv_list="try-pa oss"
 796   audio_possible_drivers="oss alsa sdl pa"
 797   linux="yes"
 798   linux_user="yes"
 799   vhost_user=${default_feature:-yes}
 800 ;;
 801 esac
 802
 803 if [ "$bsd" = "yes" ] ; then
 804   if [ "$darwin" != "yes" ] ; then
 805     bsd_user="yes"
 806   fi
 807 fi
 808
 809 : ${make=${MAKE-make}}
 810
 811 # We prefer python 3.x. A bare 'python' is traditionally
 812 # python 2.x, but some distros have it as python 3.x, so
 813 # we check that too
 814 python=
 815 explicit_python=no
 816 for binary in "${PYTHON-python3}" python
 817 do
 818     if has "$binary"
 819     then
 820         python=$(command -v "$binary")
 821         break
 822     fi
 823 done
 824
 825
 826 # Check for ancillary tools used in testing
 827 genisoimage=
 828 for binary in genisoimage mkisofs
 829 do
 830     if has $binary
 831     then
 832         genisoimage=$(command -v "$binary")
 833         break
 834     fi
 835 done
 836
 837 : ${smbd=${SMBD-/usr/sbin/smbd}}
 838
 839 # Default objcc to clang if available, otherwise use CC
 840 if has clang; then
 841   objcc=clang
 842 else
 843   objcc="$cc"
 844 fi
 845
 846 if test "$mingw32" = "yes" ; then
 847   EXESUF=".exe"
 848   HOST_DSOSUF=".dll"
 849   # MinGW needs -mthreads for TLS and macro _MT.
 850   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 851   write_c_skeleton;
 852   prefix="/qemu"
 853   qemu_suffix=""
 854   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 855 fi
 856
 857 werror=""
 858
 859 for opt do
 860   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 861   case "$opt" in
 862   --help|-h) show_help=yes
 863   ;;
 864   --version|-V) exec cat $source_path/VERSION
 865   ;;
 866   --prefix=*) prefix="$optarg"
 867   ;;
 868   --interp-prefix=*) interp_prefix="$optarg"
 869   ;;
 870   --cross-prefix=*)
 871   ;;
 872   --cc=*)
 873   ;;
 874   --host-cc=*) host_cc="$optarg"
 875   ;;
 876   --cxx=*)
 877   ;;
 878   --iasl=*) iasl="$optarg"
 879   ;;
 880   --objcc=*) objcc="$optarg"
 881   ;;
 882   --make=*) make="$optarg"
 883   ;;
 884   --install=*)
 885   ;;
 886   --python=*) python="$optarg" ; explicit_python=yes
 887   ;;
 888   --sphinx-build=*) sphinx_build="$optarg"
 889   ;;
 890   --skip-meson) skip_meson=yes
 891   ;;
 892   --meson=*) meson="$optarg"
 893   ;;
 894   --ninja=*) ninja="$optarg"
 895   ;;
 896   --smbd=*) smbd="$optarg"
 897   ;;
 898   --extra-cflags=*)
 899   ;;
 900   --extra-cxxflags=*)
 901   ;;
 902   --extra-ldflags=*)
 903   ;;
 904   --enable-debug-info)
 905   ;;
 906   --disable-debug-info)
 907   ;;
 908   --cross-cc-*)
 909   ;;
 910   --enable-modules)
 911       modules="yes"
 912   ;;
 913   --disable-modules)
 914       modules="no"
 915   ;;
 916   --disable-module-upgrades) module_upgrades="no"
 917   ;;
 918   --enable-module-upgrades) module_upgrades="yes"
 919   ;;
 920   --cpu=*)
 921   ;;
 922   --target-list=*) target_list="$optarg"
 923                    if test "$target_list_exclude"; then
 924                        error_exit "Can't mix --target-list with --target-list-exclude"
 925                    fi
 926   ;;
 927   --target-list-exclude=*) target_list_exclude="$optarg"
 928                    if test "$target_list"; then
 929                        error_exit "Can't mix --target-list-exclude with --target-list"
 930                    fi
 931   ;;
 932   --enable-trace-backends=*) trace_backends="$optarg"
 933   ;;
 934   # XXX: backwards compatibility
 935   --enable-trace-backend=*) trace_backends="$optarg"
 936   ;;
 937   --with-trace-file=*) trace_file="$optarg"
 938   ;;
 939   --with-default-devices) default_devices="true"
 940   ;;
 941   --without-default-devices) default_devices="false"
 942   ;;
 943   --without-default-features) # processed above
 944   ;;
 945   --enable-gprof) gprof="yes"
 946   ;;
 947   --enable-gcov) gcov="yes"
 948   ;;
 949   --static)
 950     static="yes"
 951     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 952   ;;
 953   --mandir=*) mandir="$optarg"
 954   ;;
 955   --bindir=*) bindir="$optarg"
 956   ;;
 957   --libdir=*) libdir="$optarg"
 958   ;;
 959   --libexecdir=*) libexecdir="$optarg"
 960   ;;
 961   --includedir=*) includedir="$optarg"
 962   ;;
 963   --datadir=*) datadir="$optarg"
 964   ;;
 965   --with-suffix=*) qemu_suffix="$optarg"
 966   ;;
 967   --docdir=*) docdir="$optarg"
 968   ;;
 969   --localedir=*) localedir="$optarg"
 970   ;;
 971   --sysconfdir=*) sysconfdir="$optarg"
 972   ;;
 973   --localstatedir=*) local_statedir="$optarg"
 974   ;;
 975   --firmwarepath=*) firmwarepath="$optarg"
 976   ;;
 977   --host=*|--build=*|\
 978   --disable-dependency-tracking|\
 979   --sbindir=*|--sharedstatedir=*|\
 980   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 981   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 982     # These switches are silently ignored, for compatibility with
 983     # autoconf-generated configure scripts. This allows QEMU's
 984     # configure to be used by RPM and similar macros that set
 985     # lots of directory switches by default.
 986   ;;
 987   --disable-sdl) sdl="disabled"
 988   ;;
 989   --enable-sdl) sdl="enabled"
 990   ;;
 991   --disable-sdl-image) sdl_image="disabled"
 992   ;;
 993   --enable-sdl-image) sdl_image="enabled"
 994   ;;
 995   --disable-qom-cast-debug) qom_cast_debug="no"
 996   ;;
 997   --enable-qom-cast-debug) qom_cast_debug="yes"
 998   ;;
 999   --disable-virtfs) virtfs="disabled"
1000   ;;
1001   --enable-virtfs) virtfs="enabled"
1002   ;;
1003   --disable-libudev) libudev="disabled"
1004   ;;
1005   --enable-libudev) libudev="enabled"
1006   ;;
1007   --disable-virtiofsd) virtiofsd="disabled"
1008   ;;
1009   --enable-virtiofsd) virtiofsd="enabled"
1010   ;;
1011   --disable-mpath) mpath="disabled"
1012   ;;
1013   --enable-mpath) mpath="enabled"
1014   ;;
1015   --disable-vnc) vnc="disabled"
1016   ;;
1017   --enable-vnc) vnc="enabled"
1018   ;;
1019   --disable-gettext) gettext="disabled"
1020   ;;
1021   --enable-gettext) gettext="enabled"
1022   ;;
1023   --oss-lib=*) oss_lib="$optarg"
1024   ;;
1025   --audio-drv-list=*) audio_drv_list="$optarg"
1026   ;;
1027   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1028   ;;
1029   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1030   ;;
1031   --enable-debug-tcg) debug_tcg="yes"
1032   ;;
1033   --disable-debug-tcg) debug_tcg="no"
1034   ;;
1035   --enable-debug)
1036       # Enable debugging options that aren't excessively noisy
1037       debug_tcg="yes"
1038       debug_mutex="yes"
1039       debug="yes"
1040       strip_opt="no"
1041       fortify_source="no"
1042   ;;
1043   --enable-sanitizers) sanitizers="yes"
1044   ;;
1045   --disable-sanitizers) sanitizers="no"
1046   ;;
1047   --enable-tsan) tsan="yes"
1048   ;;
1049   --disable-tsan) tsan="no"
1050   ;;
1051   --enable-sparse) sparse="enabled"
1052   ;;
1053   --disable-sparse) sparse="disabled"
1054   ;;
1055   --disable-strip) strip_opt="no"
1056   ;;
1057   --disable-vnc-sasl) vnc_sasl="disabled"
1058   ;;
1059   --enable-vnc-sasl) vnc_sasl="enabled"
1060   ;;
1061   --disable-vnc-jpeg) vnc_jpeg="disabled"
1062   ;;
1063   --enable-vnc-jpeg) vnc_jpeg="enabled"
1064   ;;
1065   --disable-vnc-png) vnc_png="disabled"
1066   ;;
1067   --enable-vnc-png) vnc_png="enabled"
1068   ;;
1069   --disable-slirp) slirp="disabled"
1070   ;;
1071   --enable-slirp) slirp="enabled"
1072   ;;
1073   --enable-slirp=git) slirp="internal"
1074   ;;
1075   --enable-slirp=system) slirp="system"
1076   ;;
1077   --disable-vde) vde="no"
1078   ;;
1079   --enable-vde) vde="yes"
1080   ;;
1081   --disable-netmap) netmap="no"
1082   ;;
1083   --enable-netmap) netmap="yes"
1084   ;;
1085   --disable-xen) xen="disabled"
1086   ;;
1087   --enable-xen) xen="enabled"
1088   ;;
1089   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1090   ;;
1091   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1092   ;;
1093   --disable-brlapi) brlapi="disabled"
1094   ;;
1095   --enable-brlapi) brlapi="enabled"
1096   ;;
1097   --disable-kvm) kvm="disabled"
1098   ;;
1099   --enable-kvm) kvm="enabled"
1100   ;;
1101   --disable-hax) hax="disabled"
1102   ;;
1103   --enable-hax) hax="enabled"
1104   ;;
1105   --disable-hvf) hvf="disabled"
1106   ;;
1107   --enable-hvf) hvf="enabled"
1108   ;;
1109   --disable-whpx) whpx="disabled"
1110   ;;
1111   --enable-whpx) whpx="enabled"
1112   ;;
1113   --disable-tcg-interpreter) tcg_interpreter="false"
1114   ;;
1115   --enable-tcg-interpreter) tcg_interpreter="true"
1116   ;;
1117   --disable-cap-ng)  cap_ng="disabled"
1118   ;;
1119   --enable-cap-ng) cap_ng="enabled"
1120   ;;
1121   --disable-tcg) tcg="disabled"
1122   ;;
1123   --enable-tcg) tcg="enabled"
1124   ;;
1125   --disable-malloc-trim) malloc_trim="disabled"
1126   ;;
1127   --enable-malloc-trim) malloc_trim="enabled"
1128   ;;
1129   --disable-spice) spice="no"
1130   ;;
1131   --enable-spice) spice="yes"
1132   ;;
1133   --disable-libiscsi) libiscsi="disabled"
1134   ;;
1135   --enable-libiscsi) libiscsi="enabled"
1136   ;;
1137   --disable-libnfs) libnfs="disabled"
1138   ;;
1139   --enable-libnfs) libnfs="enabled"
1140   ;;
1141   --enable-profiler) profiler="yes"
1142   ;;
1143   --disable-cocoa) cocoa="disabled"
1144   ;;
1145   --enable-cocoa) cocoa="enabled"
1146   ;;
1147   --disable-system) softmmu="no"
1148   ;;
1149   --enable-system) softmmu="yes"
1150   ;;
1151   --disable-user)
1152       linux_user="no" ;
1153       bsd_user="no" ;
1154   ;;
1155   --enable-user) ;;
1156   --disable-linux-user) linux_user="no"
1157   ;;
1158   --enable-linux-user) linux_user="yes"
1159   ;;
1160   --disable-bsd-user) bsd_user="no"
1161   ;;
1162   --enable-bsd-user) bsd_user="yes"
1163   ;;
1164   --enable-pie) pie="yes"
1165   ;;
1166   --disable-pie) pie="no"
1167   ;;
1168   --enable-werror) werror="yes"
1169   ;;
1170   --disable-werror) werror="no"
1171   ;;
1172   --enable-lto) lto="true"
1173   ;;
1174   --disable-lto) lto="false"
1175   ;;
1176   --enable-stack-protector) stack_protector="yes"
1177   ;;
1178   --disable-stack-protector) stack_protector="no"
1179   ;;
1180   --enable-safe-stack) safe_stack="yes"
1181   ;;
1182   --disable-safe-stack) safe_stack="no"
1183   ;;
1184   --enable-cfi)
1185       cfi="true";
1186       lto="true";
1187   ;;
1188   --disable-cfi) cfi="false"
1189   ;;
1190   --enable-cfi-debug) cfi_debug="true"
1191   ;;
1192   --disable-cfi-debug) cfi_debug="false"
1193   ;;
1194   --disable-curses) curses="disabled"
1195   ;;
1196   --enable-curses) curses="enabled"
1197   ;;
1198   --disable-iconv) iconv="disabled"
1199   ;;
1200   --enable-iconv) iconv="enabled"
1201   ;;
1202   --disable-curl) curl="disabled"
1203   ;;
1204   --enable-curl) curl="enabled"
1205   ;;
1206   --disable-fdt) fdt="disabled"
1207   ;;
1208   --enable-fdt) fdt="enabled"
1209   ;;
1210   --enable-fdt=git) fdt="internal"
1211   ;;
1212   --enable-fdt=system) fdt="system"
1213   ;;
1214   --disable-linux-aio) linux_aio="no"
1215   ;;
1216   --enable-linux-aio) linux_aio="yes"
1217   ;;
1218   --disable-linux-io-uring) linux_io_uring="no"
1219   ;;
1220   --enable-linux-io-uring) linux_io_uring="yes"
1221   ;;
1222   --disable-attr) attr="disabled"
1223   ;;
1224   --enable-attr) attr="enabled"
1225   ;;
1226   --disable-membarrier) membarrier="no"
1227   ;;
1228   --enable-membarrier) membarrier="yes"
1229   ;;
1230   --disable-blobs) blobs="false"
1231   ;;
1232   --with-pkgversion=*) pkgversion="$optarg"
1233   ;;
1234   --with-coroutine=*) coroutine="$optarg"
1235   ;;
1236   --disable-coroutine-pool) coroutine_pool="no"
1237   ;;
1238   --enable-coroutine-pool) coroutine_pool="yes"
1239   ;;
1240   --enable-debug-stack-usage) debug_stack_usage="yes"
1241   ;;
1242   --enable-crypto-afalg) crypto_afalg="yes"
1243   ;;
1244   --disable-crypto-afalg) crypto_afalg="no"
1245   ;;
1246   --disable-docs) docs="disabled"
1247   ;;
1248   --enable-docs) docs="enabled"
1249   ;;
1250   --disable-vhost-net) vhost_net="no"
1251   ;;
1252   --enable-vhost-net) vhost_net="yes"
1253   ;;
1254   --disable-vhost-crypto) vhost_crypto="no"
1255   ;;
1256   --enable-vhost-crypto) vhost_crypto="yes"
1257   ;;
1258   --disable-vhost-scsi) vhost_scsi="no"
1259   ;;
1260   --enable-vhost-scsi) vhost_scsi="yes"
1261   ;;
1262   --disable-vhost-vsock) vhost_vsock="no"
1263   ;;
1264   --enable-vhost-vsock) vhost_vsock="yes"
1265   ;;
1266   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1267   ;;
1268   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1269   ;;
1270   --disable-vhost-user-fs) vhost_user_fs="no"
1271   ;;
1272   --enable-vhost-user-fs) vhost_user_fs="yes"
1273   ;;
1274   --disable-opengl) opengl="no"
1275   ;;
1276   --enable-opengl) opengl="yes"
1277   ;;
1278   --disable-rbd) rbd="disabled"
1279   ;;
1280   --enable-rbd) rbd="enabled"
1281   ;;
1282   --disable-xfsctl) xfs="no"
1283   ;;
1284   --enable-xfsctl) xfs="yes"
1285   ;;
1286   --disable-smartcard) smartcard="no"
1287   ;;
1288   --enable-smartcard) smartcard="yes"
1289   ;;
1290   --disable-u2f) u2f="disabled"
1291   ;;
1292   --enable-u2f) u2f="enabled"
1293   ;;
1294   --disable-libusb) libusb="no"
1295   ;;
1296   --enable-libusb) libusb="yes"
1297   ;;
1298   --disable-usb-redir) usb_redir="no"
1299   ;;
1300   --enable-usb-redir) usb_redir="yes"
1301   ;;
1302   --disable-zlib-test)
1303   ;;
1304   --disable-lzo) lzo="disabled"
1305   ;;
1306   --enable-lzo) lzo="enabled"
1307   ;;
1308   --disable-snappy) snappy="disabled"
1309   ;;
1310   --enable-snappy) snappy="enabled"
1311   ;;
1312   --disable-bzip2) bzip2="disabled"
1313   ;;
1314   --enable-bzip2) bzip2="enabled"
1315   ;;
1316   --enable-lzfse) lzfse="enabled"
1317   ;;
1318   --disable-lzfse) lzfse="disabled"
1319   ;;
1320   --disable-zstd) zstd="disabled"
1321   ;;
1322   --enable-zstd) zstd="enabled"
1323   ;;
1324   --enable-guest-agent) guest_agent="yes"
1325   ;;
1326   --disable-guest-agent) guest_agent="no"
1327   ;;
1328   --enable-guest-agent-msi) guest_agent_msi="enabled"
1329   ;;
1330   --disable-guest-agent-msi) guest_agent_msi="disabled"
1331   ;;
1332   --with-vss-sdk) vss_win32_sdk=""
1333   ;;
1334   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1335   ;;
1336   --without-vss-sdk) vss_win32_sdk="no"
1337   ;;
1338   --with-win-sdk) win_sdk=""
1339   ;;
1340   --with-win-sdk=*) win_sdk="$optarg"
1341   ;;
1342   --without-win-sdk) win_sdk="no"
1343   ;;
1344   --enable-tools) want_tools="yes"
1345   ;;
1346   --disable-tools) want_tools="no"
1347   ;;
1348   --enable-seccomp) seccomp="enabled"
1349   ;;
1350   --disable-seccomp) seccomp="disabled"
1351   ;;
1352   --disable-glusterfs) glusterfs="disabled"
1353   ;;
1354   --disable-avx2) avx2_opt="no"
1355   ;;
1356   --enable-avx2) avx2_opt="yes"
1357   ;;
1358   --disable-avx512f) avx512f_opt="no"
1359   ;;
1360   --enable-avx512f) avx512f_opt="yes"
1361   ;;
1362
1363   --enable-glusterfs) glusterfs="enabled"
1364   ;;
1365   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1366       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1367   ;;
1368   --enable-vhdx|--disable-vhdx)
1369       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1370   ;;
1371   --enable-uuid|--disable-uuid)
1372       echo "$0: $opt is obsolete, UUID support is always built" >&2
1373   ;;
1374   --disable-gtk) gtk="disabled"
1375   ;;
1376   --enable-gtk) gtk="enabled"
1377   ;;
1378   --tls-priority=*) tls_priority="$optarg"
1379   ;;
1380   --disable-gnutls) gnutls="no"
1381   ;;
1382   --enable-gnutls) gnutls="yes"
1383   ;;
1384   --disable-nettle) nettle="no"
1385   ;;
1386   --enable-nettle) nettle="yes"
1387   ;;
1388   --disable-gcrypt) gcrypt="no"
1389   ;;
1390   --enable-gcrypt) gcrypt="yes"
1391   ;;
1392   --disable-auth-pam) auth_pam="no"
1393   ;;
1394   --enable-auth-pam) auth_pam="yes"
1395   ;;
1396   --enable-rdma) rdma="yes"
1397   ;;
1398   --disable-rdma) rdma="no"
1399   ;;
1400   --enable-pvrdma) pvrdma="yes"
1401   ;;
1402   --disable-pvrdma) pvrdma="no"
1403   ;;
1404   --disable-vte) vte="no"
1405   ;;
1406   --enable-vte) vte="yes"
1407   ;;
1408   --disable-virglrenderer) virglrenderer="no"
1409   ;;
1410   --enable-virglrenderer) virglrenderer="yes"
1411   ;;
1412   --disable-tpm) tpm="no"
1413   ;;
1414   --enable-tpm) tpm="yes"
1415   ;;
1416   --disable-libssh) libssh="no"
1417   ;;
1418   --enable-libssh) libssh="yes"
1419   ;;
1420   --disable-live-block-migration) live_block_migration="no"
1421   ;;
1422   --enable-live-block-migration) live_block_migration="yes"
1423   ;;
1424   --disable-numa) numa="no"
1425   ;;
1426   --enable-numa) numa="yes"
1427   ;;
1428   --disable-libxml2) libxml2="no"
1429   ;;
1430   --enable-libxml2) libxml2="yes"
1431   ;;
1432   --disable-tcmalloc) tcmalloc="no"
1433   ;;
1434   --enable-tcmalloc) tcmalloc="yes"
1435   ;;
1436   --disable-jemalloc) jemalloc="no"
1437   ;;
1438   --enable-jemalloc) jemalloc="yes"
1439   ;;
1440   --disable-replication) replication="no"
1441   ;;
1442   --enable-replication) replication="yes"
1443   ;;
1444   --disable-bochs) bochs="no"
1445   ;;
1446   --enable-bochs) bochs="yes"
1447   ;;
1448   --disable-cloop) cloop="no"
1449   ;;
1450   --enable-cloop) cloop="yes"
1451   ;;
1452   --disable-dmg) dmg="no"
1453   ;;
1454   --enable-dmg) dmg="yes"
1455   ;;
1456   --disable-qcow1) qcow1="no"
1457   ;;
1458   --enable-qcow1) qcow1="yes"
1459   ;;
1460   --disable-vdi) vdi="no"
1461   ;;
1462   --enable-vdi) vdi="yes"
1463   ;;
1464   --disable-vvfat) vvfat="no"
1465   ;;
1466   --enable-vvfat) vvfat="yes"
1467   ;;
1468   --disable-qed) qed="no"
1469   ;;
1470   --enable-qed) qed="yes"
1471   ;;
1472   --disable-parallels) parallels="no"
1473   ;;
1474   --enable-parallels) parallels="yes"
1475   ;;
1476   --disable-sheepdog) sheepdog="no"
1477   ;;
1478   --enable-sheepdog) sheepdog="yes"
1479   ;;
1480   --disable-vhost-user) vhost_user="no"
1481   ;;
1482   --enable-vhost-user) vhost_user="yes"
1483   ;;
1484   --disable-vhost-vdpa) vhost_vdpa="no"
1485   ;;
1486   --enable-vhost-vdpa) vhost_vdpa="yes"
1487   ;;
1488   --disable-vhost-kernel) vhost_kernel="no"
1489   ;;
1490   --enable-vhost-kernel) vhost_kernel="yes"
1491   ;;
1492   --disable-capstone) capstone="disabled"
1493   ;;
1494   --enable-capstone) capstone="enabled"
1495   ;;
1496   --enable-capstone=git) capstone="internal"
1497   ;;
1498   --enable-capstone=system) capstone="system"
1499   ;;
1500   --with-git=*) git="$optarg"
1501   ;;
1502   --enable-git-update)
1503       git_submodules_action="update"
1504       echo "--enable-git-update deprecated, use --with-git-submodules=update"
1505   ;;
1506   --disable-git-update)
1507       git_submodules_action="validate"
1508       echo "--disable-git-update deprecated, use --with-git-submodules=validate"
1509   ;;
1510   --with-git-submodules=*)
1511       git_submodules_action="$optarg"
1512   ;;
1513   --enable-debug-mutex) debug_mutex=yes
1514   ;;
1515   --disable-debug-mutex) debug_mutex=no
1516   ;;
1517   --enable-libpmem) libpmem=yes
1518   ;;
1519   --disable-libpmem) libpmem=no
1520   ;;
1521   --enable-xkbcommon) xkbcommon="enabled"
1522   ;;
1523   --disable-xkbcommon) xkbcommon="disabled"
1524   ;;
1525   --enable-plugins) plugins="yes"
1526   ;;
1527   --disable-plugins) plugins="no"
1528   ;;
1529   --enable-containers) use_containers="yes"
1530   ;;
1531   --disable-containers) use_containers="no"
1532   ;;
1533   --enable-fuzzing) fuzzing=yes
1534   ;;
1535   --disable-fuzzing) fuzzing=no
1536   ;;
1537   --gdb=*) gdb_bin="$optarg"
1538   ;;
1539   --enable-rng-none) rng_none=yes
1540   ;;
1541   --disable-rng-none) rng_none=no
1542   ;;
1543   --enable-keyring) secret_keyring="yes"
1544   ;;
1545   --disable-keyring) secret_keyring="no"
1546   ;;
1547   --enable-libdaxctl) libdaxctl=yes
1548   ;;
1549   --disable-libdaxctl) libdaxctl=no
1550   ;;
1551   --enable-fuse) fuse="enabled"
1552   ;;
1553   --disable-fuse) fuse="disabled"
1554   ;;
1555   --enable-fuse-lseek) fuse_lseek="enabled"
1556   ;;
1557   --disable-fuse-lseek) fuse_lseek="disabled"
1558   ;;
1559   *)
1560       echo "ERROR: unknown option $opt"
1561       echo "Try '$0 --help' for more information"
1562       exit 1
1563   ;;
1564   esac
1565 done
1566
1567 case $git_submodules_action in
1568     update|validate)
1569         if test ! -e "$source_path/.git"; then
1570             echo "ERROR: cannot $git_submodules_action git submodules without .git"
1571             exit 1
1572         fi
1573     ;;
1574     ignore)
1575     ;;
1576     *)
1577         echo "ERROR: invalid --with-git-submodules= value '$git_submodules_action'"
1578         exit 1
1579     ;;
1580 esac
1581
1582 libdir="${libdir:-$prefix/lib}"
1583 libexecdir="${libexecdir:-$prefix/libexec}"
1584 includedir="${includedir:-$prefix/include}"
1585
1586 if test "$mingw32" = "yes" ; then
1587     bindir="${bindir:-$prefix}"
1588 else
1589     bindir="${bindir:-$prefix/bin}"
1590 fi
1591 mandir="${mandir:-$prefix/share/man}"
1592 datadir="${datadir:-$prefix/share}"
1593 docdir="${docdir:-$prefix/share/doc}"
1594 sysconfdir="${sysconfdir:-$prefix/etc}"
1595 local_statedir="${local_statedir:-$prefix/var}"
1596 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1597 localedir="${localedir:-$datadir/locale}"
1598
1599 case "$cpu" in
1600     ppc)
1601            CPU_CFLAGS="-m32"
1602            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1603            ;;
1604     ppc64)
1605            CPU_CFLAGS="-m64"
1606            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1607            ;;
1608     sparc)
1609            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1610            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1611            ;;
1612     sparc64)
1613            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1614            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1615            ;;
1616     s390)
1617            CPU_CFLAGS="-m31"
1618            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1619            ;;
1620     s390x)
1621            CPU_CFLAGS="-m64"
1622            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1623            ;;
1624     i386)
1625            CPU_CFLAGS="-m32"
1626            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1627            ;;
1628     x86_64)
1629            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1630            # If we truly care, we should simply detect this case at
1631            # runtime and generate the fallback to serial emulation.
1632            CPU_CFLAGS="-m64 -mcx16"
1633            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1634            ;;
1635     x32)
1636            CPU_CFLAGS="-mx32"
1637            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1638            ;;
1639     # No special flags required for other host CPUs
1640 esac
1641
1642 eval "cross_cc_${cpu}=\$host_cc"
1643 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1644 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1645
1646 # For user-mode emulation the host arch has to be one we explicitly
1647 # support, even if we're using TCI.
1648 if [ "$ARCH" = "unknown" ]; then
1649   bsd_user="no"
1650   linux_user="no"
1651 fi
1652
1653 default_target_list=""
1654 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1655 deprecated_features=""
1656 mak_wilds=""
1657
1658 if [ "$softmmu" = "yes" ]; then
1659     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1660 fi
1661 if [ "$linux_user" = "yes" ]; then
1662     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1663 fi
1664 if [ "$bsd_user" = "yes" ]; then
1665     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1666 fi
1667
1668 # If the user doesn't explicitly specify a deprecated target we will
1669 # skip it.
1670 if test -z "$target_list"; then
1671     if test -z "$target_list_exclude"; then
1672         target_list_exclude="$deprecated_targets_list"
1673     else
1674         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1675     fi
1676 fi
1677
1678 for config in $mak_wilds; do
1679     target="$(basename "$config" .mak)"
1680     if echo "$target_list_exclude" | grep -vq "$target"; then
1681         default_target_list="${default_target_list} $target"
1682     fi
1683 done
1684
1685 # Enumerate public trace backends for --help output
1686 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1687
1688 if test x"$show_help" = x"yes" ; then
1689 cat << EOF
1690
1691 Usage: configure [options]
1692 Options: [defaults in brackets after descriptions]
1693
1694 Standard options:
1695   --help                   print this message
1696   --prefix=PREFIX          install in PREFIX [$prefix]
1697   --interp-prefix=PREFIX   where to find shared libraries, etc.
1698                            use %M for cpu name [$interp_prefix]
1699   --target-list=LIST       set target list (default: build all non-deprecated)
1700 $(echo Available targets: $default_target_list | \
1701   fold -s -w 53 | sed -e 's/^/                           /')
1702 $(echo Deprecated targets: $deprecated_targets_list | \
1703   fold -s -w 53 | sed -e 's/^/                           /')
1704   --target-list-exclude=LIST exclude a set of targets from the default target-list
1705
1706 Advanced options (experts only):
1707   --cross-prefix=PREFIX    use PREFIX for compile tools, PREFIX can be blank [$cross_prefix]
1708   --cc=CC                  use C compiler CC [$cc]
1709   --iasl=IASL              use ACPI compiler IASL [$iasl]
1710   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1711                            build time
1712   --cxx=CXX                use C++ compiler CXX [$cxx]
1713   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1714   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1715   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1716   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1717   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1718   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1719   --make=MAKE              use specified make [$make]
1720   --python=PYTHON          use specified python [$python]
1721   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1722   --meson=MESON            use specified meson [$meson]
1723   --ninja=NINJA            use specified ninja [$ninja]
1724   --smbd=SMBD              use specified smbd [$smbd]
1725   --with-git=GIT           use specified git [$git]
1726   --with-git-submodules=update   update git submodules (default if .git dir exists)
1727   --with-git-submodules=validate fail if git submodules are not up to date
1728   --with-git-submodules=ignore   do not update or check git submodules (default if no .git dir)
1729   --static                 enable static build [$static]
1730   --mandir=PATH            install man pages in PATH
1731   --datadir=PATH           install firmware in PATH/$qemu_suffix
1732   --localedir=PATH         install translation in PATH/$qemu_suffix
1733   --docdir=PATH            install documentation in PATH/$qemu_suffix
1734   --bindir=PATH            install binaries in PATH
1735   --libdir=PATH            install libraries in PATH
1736   --libexecdir=PATH        install helper binaries in PATH
1737   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1738   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1739   --firmwarepath=PATH      search PATH for firmware files
1740   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1741   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1742   --with-pkgversion=VERS   use specified string as sub-version of the package
1743   --without-default-features default all --enable-* options to "disabled"
1744   --without-default-devices  do not include any device that is not needed to
1745                            start the emulator (only use if you are including
1746                            desired devices in default-configs/devices/)
1747   --enable-debug           enable common debug build options
1748   --enable-sanitizers      enable default sanitizers
1749   --enable-tsan            enable thread sanitizer
1750   --disable-strip          disable stripping binaries
1751   --disable-werror         disable compilation abort on warning
1752   --disable-stack-protector disable compiler-provided stack protection
1753   --audio-drv-list=LIST    set audio drivers list:
1754                            Available drivers: $audio_possible_drivers
1755   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1756   --block-drv-rw-whitelist=L
1757                            set block driver read-write whitelist
1758                            (affects only QEMU, not qemu-img)
1759   --block-drv-ro-whitelist=L
1760                            set block driver read-only whitelist
1761                            (affects only QEMU, not qemu-img)
1762   --enable-trace-backends=B Set trace backend
1763                            Available backends: $trace_backend_list
1764   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1765                            Default:trace-<pid>
1766   --disable-slirp          disable SLIRP userspace network connectivity
1767   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1768   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1769   --oss-lib                path to OSS library
1770   --cpu=CPU                Build for host CPU [$cpu]
1771   --with-coroutine=BACKEND coroutine backend. Supported options:
1772                            ucontext, sigaltstack, windows
1773   --enable-gcov            enable test coverage analysis with gcov
1774   --disable-blobs          disable installing provided firmware blobs
1775   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1776   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1777   --tls-priority           default TLS protocol/cipher priority string
1778   --enable-gprof           QEMU profiling with gprof
1779   --enable-profiler        profiler support
1780   --enable-debug-stack-usage
1781                            track the maximum stack usage of stacks created by qemu_alloc_stack
1782   --enable-plugins
1783                            enable plugins via shared library loading
1784   --disable-containers     don't use containers for cross-building
1785   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1786
1787 Optional features, enabled with --enable-FEATURE and
1788 disabled with --disable-FEATURE, default is enabled if available
1789 (unless built with --without-default-features):
1790
1791   system          all system emulation targets
1792   user            supported user emulation targets
1793   linux-user      all linux usermode emulation targets
1794   bsd-user        all BSD usermode emulation targets
1795   docs            build documentation
1796   guest-agent     build the QEMU Guest Agent
1797   guest-agent-msi build guest agent Windows MSI installation package
1798   pie             Position Independent Executables
1799   modules         modules support (non-Windows)
1800   module-upgrades try to load modules from alternate paths for upgrades
1801   debug-tcg       TCG debugging (default is disabled)
1802   debug-info      debugging information
1803   lto             Enable Link-Time Optimization.
1804   sparse          sparse checker
1805   safe-stack      SafeStack Stack Smash Protection. Depends on
1806                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1807   cfi             Enable Control-Flow Integrity for indirect function calls.
1808                   In case of a cfi violation, QEMU is terminated with SIGILL
1809                   Depends on lto and is incompatible with modules
1810                   Automatically enables Link-Time Optimization (lto)
1811   cfi-debug       In case of a cfi violation, a message containing the line that
1812                   triggered the error is written to stderr. After the error,
1813                   QEMU is still terminated with SIGILL
1814   gnutls          GNUTLS cryptography support
1815   nettle          nettle cryptography support
1816   gcrypt          libgcrypt cryptography support
1817   auth-pam        PAM access control
1818   sdl             SDL UI
1819   sdl-image       SDL Image support for icons
1820   gtk             gtk UI
1821   vte             vte support for the gtk UI
1822   curses          curses UI
1823   iconv           font glyph conversion support
1824   vnc             VNC UI support
1825   vnc-sasl        SASL encryption for VNC server
1826   vnc-jpeg        JPEG lossy compression for VNC server
1827   vnc-png         PNG compression for VNC server
1828   cocoa           Cocoa UI (Mac OS X only)
1829   virtfs          VirtFS
1830   virtiofsd       build virtiofs daemon (virtiofsd)
1831   libudev         Use libudev to enumerate host devices
1832   mpath           Multipath persistent reservation passthrough
1833   xen             xen backend driver support
1834   xen-pci-passthrough    PCI passthrough support for Xen
1835   brlapi          BrlAPI (Braile)
1836   curl            curl connectivity
1837   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1838   fdt             fdt device tree
1839   kvm             KVM acceleration support
1840   hax             HAX acceleration support
1841   hvf             Hypervisor.framework acceleration support
1842   whpx            Windows Hypervisor Platform acceleration support
1843   rdma            Enable RDMA-based migration
1844   pvrdma          Enable PVRDMA support
1845   vde             support for vde network
1846   netmap          support for netmap network
1847   linux-aio       Linux AIO support
1848   linux-io-uring  Linux io_uring support
1849   cap-ng          libcap-ng support
1850   attr            attr and xattr support
1851   vhost-net       vhost-net kernel acceleration support
1852   vhost-vsock     virtio sockets device support
1853   vhost-scsi      vhost-scsi kernel target support
1854   vhost-crypto    vhost-user-crypto backend support
1855   vhost-kernel    vhost kernel backend support
1856   vhost-user      vhost-user backend support
1857   vhost-user-blk-server    vhost-user-blk server support
1858   vhost-vdpa      vhost-vdpa kernel backend support
1859   spice           spice
1860   rbd             rados block device (rbd)
1861   libiscsi        iscsi support
1862   libnfs          nfs support
1863   smartcard       smartcard support (libcacard)
1864   u2f             U2F support (u2f-emu)
1865   libusb          libusb (for usb passthrough)
1866   live-block-migration   Block migration in the main migration stream
1867   usb-redir       usb network redirection support
1868   lzo             support of lzo compression library
1869   snappy          support of snappy compression library
1870   bzip2           support of bzip2 compression library
1871                   (for reading bzip2-compressed dmg images)
1872   lzfse           support of lzfse compression library
1873                   (for reading lzfse-compressed dmg images)
1874   zstd            support for zstd compression library
1875                   (for migration compression and qcow2 cluster compression)
1876   seccomp         seccomp support
1877   coroutine-pool  coroutine freelist (better performance)
1878   glusterfs       GlusterFS backend
1879   tpm             TPM support
1880   libssh          ssh block device support
1881   numa            libnuma support
1882   libxml2         for Parallels image format
1883   tcmalloc        tcmalloc support
1884   jemalloc        jemalloc support
1885   avx2            AVX2 optimization support
1886   avx512f         AVX512F optimization support
1887   replication     replication support
1888   opengl          opengl support
1889   virglrenderer   virgl rendering support
1890   xfsctl          xfsctl support
1891   qom-cast-debug  cast debugging support
1892   tools           build qemu-io, qemu-nbd and qemu-img tools
1893   bochs           bochs image format support
1894   cloop           cloop image format support
1895   dmg             dmg image format support
1896   qcow1           qcow v1 image format support
1897   vdi             vdi image format support
1898   vvfat           vvfat image format support
1899   qed             qed image format support
1900   parallels       parallels image format support
1901   sheepdog        sheepdog block driver support (deprecated)
1902   crypto-afalg    Linux AF_ALG crypto backend driver
1903   capstone        capstone disassembler support
1904   debug-mutex     mutex debugging support
1905   libpmem         libpmem support
1906   xkbcommon       xkbcommon support
1907   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1908   libdaxctl       libdaxctl support
1909   fuse            FUSE block device export
1910   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1911
1912 NOTE: The object files are built at the place where configure is launched
1913 EOF
1914 exit 0
1915 fi
1916
1917 # Remove old dependency files to make sure that they get properly regenerated
1918 rm -f */config-devices.mak.d
1919
1920 if test -z "$python"
1921 then
1922     error_exit "Python not found. Use --python=/path/to/python"
1923 fi
1924 if ! has "$make"
1925 then
1926     error_exit "GNU make ($make) not found"
1927 fi
1928
1929 # Note that if the Python conditional here evaluates True we will exit
1930 # with status 1 which is a shell 'false' value.
1931 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1932   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1933       "Use --python=/path/to/python to specify a supported Python."
1934 fi
1935
1936 # Preserve python version since some functionality is dependent on it
1937 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)
1938
1939 # Suppress writing compiled files
1940 python="$python -B"
1941
1942 if test -z "$meson"; then
1943     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1944         meson=meson
1945     elif test $git_submodules_action != 'ignore' ; then
1946         meson=git
1947     elif test -e "${source_path}/meson/meson.py" ; then
1948         meson=internal
1949     else
1950         if test "$explicit_python" = yes; then
1951             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1952         else
1953             error_exit "Meson not found.  Use --meson=/path/to/meson"
1954         fi
1955     fi
1956 else
1957     # Meson uses its own Python interpreter to invoke other Python scripts,
1958     # but the user wants to use the one they specified with --python.
1959     #
1960     # We do not want to override the distro Python interpreter (and sometimes
1961     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1962     # just require --meson=git|internal together with --python.
1963     if test "$explicit_python" = yes; then
1964         case "$meson" in
1965             git | internal) ;;
1966             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1967         esac
1968     fi
1969 fi
1970
1971 if test "$meson" = git; then
1972     git_submodules="${git_submodules} meson"
1973 fi
1974
1975 case "$meson" in
1976     git | internal)
1977         meson="$python ${source_path}/meson/meson.py"
1978         ;;
1979     *) meson=$(command -v "$meson") ;;
1980 esac
1981
1982 # Probe for ninja
1983
1984 if test -z "$ninja"; then
1985     for c in ninja ninja-build samu; do
1986         if has $c; then
1987             ninja=$(command -v "$c")
1988             break
1989         fi
1990     done
1991     if test -z "$ninja"; then
1992       error_exit "Cannot find Ninja"
1993     fi
1994 fi
1995
1996 # Check that the C compiler works. Doing this here before testing
1997 # the host CPU ensures that we had a valid CC to autodetect the
1998 # $cpu var (and we should bail right here if that's not the case).
1999 # It also allows the help message to be printed without a CC.
2000 write_c_skeleton;
2001 if compile_object ; then
2002   : C compiler works ok
2003 else
2004     error_exit "\"$cc\" either does not exist or does not work"
2005 fi
2006 if ! compile_prog ; then
2007     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2008 fi
2009
2010 # Consult white-list to determine whether to enable werror
2011 # by default.  Only enable by default for git builds
2012 if test -z "$werror" ; then
2013     if test "$git_submodules_action" != "ignore" && \
2014         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2015         werror="yes"
2016     else
2017         werror="no"
2018     fi
2019 fi
2020
2021 if test "$targetos" = "bogus"; then
2022     # Now that we know that we're not printing the help and that
2023     # the compiler works (so the results of the check_defines we used
2024     # to identify the OS are reliable), if we didn't recognize the
2025     # host OS we should stop now.
2026     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2027 fi
2028
2029 # Check whether the compiler matches our minimum requirements:
2030 cat > $TMPC << EOF
2031 #if defined(__clang_major__) && defined(__clang_minor__)
2032 # ifdef __apple_build_version__
2033 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2034 #   error You need at least XCode Clang v5.1 to compile QEMU
2035 #  endif
2036 # else
2037 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2038 #   error You need at least Clang v3.4 to compile QEMU
2039 #  endif
2040 # endif
2041 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2042 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2043 #  error You need at least GCC v4.8 to compile QEMU
2044 # endif
2045 #else
2046 # error You either need GCC or Clang to compiler QEMU
2047 #endif
2048 int main (void) { return 0; }
2049 EOF
2050 if ! compile_prog "" "" ; then
2051     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2052 fi
2053
2054 # Accumulate -Wfoo and -Wno-bar separately.
2055 # We will list all of the enable flags first, and the disable flags second.
2056 # Note that we do not add -Werror, because that would enable it for all
2057 # configure tests. If a configure test failed due to -Werror this would
2058 # just silently disable some features, so it's too error prone.
2059
2060 warn_flags=
2061 add_to warn_flags -Wold-style-declaration
2062 add_to warn_flags -Wold-style-definition
2063 add_to warn_flags -Wtype-limits
2064 add_to warn_flags -Wformat-security
2065 add_to warn_flags -Wformat-y2k
2066 add_to warn_flags -Winit-self
2067 add_to warn_flags -Wignored-qualifiers
2068 add_to warn_flags -Wempty-body
2069 add_to warn_flags -Wnested-externs
2070 add_to warn_flags -Wendif-labels
2071 add_to warn_flags -Wexpansion-to-defined
2072 add_to warn_flags -Wimplicit-fallthrough=2
2073
2074 nowarn_flags=
2075 add_to nowarn_flags -Wno-initializer-overrides
2076 add_to nowarn_flags -Wno-missing-include-dirs
2077 add_to nowarn_flags -Wno-shift-negative-value
2078 add_to nowarn_flags -Wno-string-plus-int
2079 add_to nowarn_flags -Wno-typedef-redefinition
2080 add_to nowarn_flags -Wno-tautological-type-limit-compare
2081 add_to nowarn_flags -Wno-psabi
2082
2083 gcc_flags="$warn_flags $nowarn_flags"
2084
2085 cc_has_warning_flag() {
2086     write_c_skeleton;
2087
2088     # Use the positive sense of the flag when testing for -Wno-wombat
2089     # support (gcc will happily accept the -Wno- form of unknown
2090     # warning options).
2091     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2092     compile_prog "-Werror $optflag" ""
2093 }
2094
2095 for flag in $gcc_flags; do
2096     if cc_has_warning_flag $flag ; then
2097         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2098     fi
2099 done
2100
2101 if test "$stack_protector" != "no"; then
2102   cat > $TMPC << EOF
2103 int main(int argc, char *argv[])
2104 {
2105     char arr[64], *p = arr, *c = argv[0];
2106     while (*c) {
2107         *p++ = *c++;
2108     }
2109     return 0;
2110 }
2111 EOF
2112   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2113   sp_on=0
2114   for flag in $gcc_flags; do
2115     # We need to check both a compile and a link, since some compiler
2116     # setups fail only on a .c->.o compile and some only at link time
2117     if compile_object "-Werror $flag" &&
2118        compile_prog "-Werror $flag" ""; then
2119       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2120       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2121       sp_on=1
2122       break
2123     fi
2124   done
2125   if test "$stack_protector" = yes; then
2126     if test $sp_on = 0; then
2127       error_exit "Stack protector not supported"
2128     fi
2129   fi
2130 fi
2131
2132 # Disable -Wmissing-braces on older compilers that warn even for
2133 # the "universal" C zero initializer {0}.
2134 cat > $TMPC << EOF
2135 struct {
2136   int a[2];
2137 } x = {0};
2138 EOF
2139 if compile_object "-Werror" "" ; then
2140   :
2141 else
2142   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2143 fi
2144
2145 # Our module code doesn't support Windows
2146 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2147   error_exit "Modules are not available for Windows"
2148 fi
2149
2150 # module_upgrades is only reasonable if modules are enabled
2151 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2152   error_exit "Can't enable module-upgrades as Modules are not enabled"
2153 fi
2154
2155 # Static linking is not possible with modules or PIE
2156 if test "$static" = "yes" ; then
2157   if test "$modules" = "yes" ; then
2158     error_exit "static and modules are mutually incompatible"
2159   fi
2160 fi
2161
2162 # Unconditional check for compiler __thread support
2163   cat > $TMPC << EOF
2164 static __thread int tls_var;
2165 int main(void) { return tls_var; }
2166 EOF
2167
2168 if ! compile_prog "-Werror" "" ; then
2169     error_exit "Your compiler does not support the __thread specifier for " \
2170         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2171 fi
2172
2173 cat > $TMPC << EOF
2174
2175 #ifdef __linux__
2176 #  define THREAD __thread
2177 #else
2178 #  define THREAD
2179 #endif
2180 static THREAD int tls_var;
2181 int main(void) { return tls_var; }
2182 EOF
2183
2184 # Check we support --no-pie first; we will need this for building ROMs.
2185 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2186   CFLAGS_NOPIE="-fno-pie"
2187 fi
2188
2189 if test "$static" = "yes"; then
2190   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2191     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2192     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2193     pie="yes"
2194   elif test "$pie" = "yes"; then
2195     error_exit "-static-pie not available due to missing toolchain support"
2196   else
2197     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2198     pie="no"
2199   fi
2200 elif test "$pie" = "no"; then
2201   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2202 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2203   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2204   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2205   pie="yes"
2206 elif test "$pie" = "yes"; then
2207   error_exit "PIE not available due to missing toolchain support"
2208 else
2209   echo "Disabling PIE due to missing toolchain support"
2210   pie="no"
2211 fi
2212
2213 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2214 # The combination is known as "full relro", because .got.plt is read-only too.
2215 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2216   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2217 fi
2218
2219 ##########################################
2220 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2221 # use i686 as default anyway, but for those that don't, an explicit
2222 # specification is necessary
2223
2224 if test "$cpu" = "i386"; then
2225   cat > $TMPC << EOF
2226 static int sfaa(int *ptr)
2227 {
2228   return __sync_fetch_and_and(ptr, 0);
2229 }
2230
2231 int main(void)
2232 {
2233   int val = 42;
2234   val = __sync_val_compare_and_swap(&val, 0, 1);
2235   sfaa(&val);
2236   return val;
2237 }
2238 EOF
2239   if ! compile_prog "" "" ; then
2240     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2241   fi
2242 fi
2243
2244 #########################################
2245 # Solaris specific configure tool chain decisions
2246
2247 if test "$solaris" = "yes" ; then
2248   if has ar; then
2249     :
2250   else
2251     if test -f /usr/ccs/bin/ar ; then
2252       error_exit "No path includes ar" \
2253           "Add /usr/ccs/bin to your path and rerun configure"
2254     fi
2255     error_exit "No path includes ar"
2256   fi
2257 fi
2258
2259 if test -z "${target_list+xxx}" ; then
2260     default_targets=yes
2261     for target in $default_target_list; do
2262         target_list="$target_list $target"
2263     done
2264     target_list="${target_list# }"
2265 else
2266     default_targets=no
2267     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2268     for target in $target_list; do
2269         # Check that we recognised the target name; this allows a more
2270         # friendly error message than if we let it fall through.
2271         case " $default_target_list " in
2272             *" $target "*)
2273                 ;;
2274             *)
2275                 error_exit "Unknown target name '$target'"
2276                 ;;
2277         esac
2278     done
2279 fi
2280
2281 for target in $target_list; do
2282     # if a deprecated target is enabled we note it here
2283     if echo "$deprecated_targets_list" | grep -q "$target"; then
2284         add_to deprecated_features $target
2285     fi
2286 done
2287
2288 # see if system emulation was really requested
2289 case " $target_list " in
2290   *"-softmmu "*) softmmu=yes
2291   ;;
2292   *) softmmu=no
2293   ;;
2294 esac
2295
2296 feature_not_found() {
2297   feature=$1
2298   remedy=$2
2299
2300   error_exit "User requested feature $feature" \
2301       "configure was not able to find it." \
2302       "$remedy"
2303 }
2304
2305 # ---
2306 # big/little endian test
2307 cat > $TMPC << EOF
2308 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2309 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2310 extern int foo(short *, short *);
2311 int main(int argc, char *argv[]) {
2312     return foo(big_endian, little_endian);
2313 }
2314 EOF
2315
2316 if compile_object ; then
2317     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2318         bigendian="yes"
2319     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2320         bigendian="no"
2321     else
2322         echo big/little test failed
2323     fi
2324 else
2325     echo big/little test failed
2326 fi
2327
2328 ##########################################
2329 # system tools
2330 if test -z "$want_tools"; then
2331     if test "$softmmu" = "no"; then
2332         want_tools=no
2333     else
2334         want_tools=yes
2335     fi
2336 fi
2337
2338 ##########################################
2339 # Disable features only meaningful for system-mode emulation
2340 if test "$softmmu" = "no"; then
2341     audio_drv_list=""
2342 fi
2343
2344 ##########################################
2345 # Some versions of Mac OS X incorrectly define SIZE_MAX
2346 cat > $TMPC << EOF
2347 #include <stdint.h>
2348 #include <stdio.h>
2349 int main(int argc, char *argv[]) {
2350     return printf("%zu", SIZE_MAX);
2351 }
2352 EOF
2353 have_broken_size_max=no
2354 if ! compile_object -Werror ; then
2355     have_broken_size_max=yes
2356 fi
2357
2358 ##########################################
2359 # L2TPV3 probe
2360
2361 cat > $TMPC <<EOF
2362 #include <sys/socket.h>
2363 #include <linux/ip.h>
2364 int main(void) { return sizeof(struct mmsghdr); }
2365 EOF
2366 if compile_prog "" "" ; then
2367   l2tpv3=yes
2368 else
2369   l2tpv3=no
2370 fi
2371
2372 cat > $TMPC <<EOF
2373 #include <sys/mman.h>
2374 int main(int argc, char *argv[]) {
2375     return mlockall(MCL_FUTURE);
2376 }
2377 EOF
2378 if compile_prog "" "" ; then
2379   have_mlockall=yes
2380 else
2381   have_mlockall=no
2382 fi
2383
2384 #########################################
2385 # vhost interdependencies and host support
2386
2387 # vhost backends
2388 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2389   error_exit "vhost-user is only available on Linux"
2390 fi
2391 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2392 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2393   error_exit "vhost-vdpa is only available on Linux"
2394 fi
2395 test "$vhost_kernel" = "" && vhost_kernel=$linux
2396 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2397   error_exit "vhost-kernel is only available on Linux"
2398 fi
2399
2400 # vhost-kernel devices
2401 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2402 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2403   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2404 fi
2405 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2406 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2407   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2408 fi
2409
2410 # vhost-user backends
2411 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2412 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2413   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2414 fi
2415 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2416 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2417   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2418 fi
2419 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2420 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2421   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2422 fi
2423 #vhost-vdpa backends
2424 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2425 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2426   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2427 fi
2428
2429 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2430 if test "$vhost_net" = ""; then
2431   test "$vhost_net_user" = "yes" && vhost_net=yes
2432   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2433   test "$vhost_kernel" = "yes" && vhost_net=yes
2434 fi
2435
2436 ##########################################
2437 # pkg-config probe
2438
2439 if ! has "$pkg_config_exe"; then
2440   error_exit "pkg-config binary '$pkg_config_exe' not found"
2441 fi
2442
2443 ##########################################
2444 # NPTL probe
2445
2446 if test "$linux_user" = "yes"; then
2447   cat > $TMPC <<EOF
2448 #include <sched.h>
2449 #include <linux/futex.h>
2450 int main(void) {
2451 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2452 #error bork
2453 #endif
2454   return 0;
2455 }
2456 EOF
2457   if ! compile_object ; then
2458     feature_not_found "nptl" "Install glibc and linux kernel headers."
2459   fi
2460 fi
2461
2462 ##########################################
2463 # xen probe
2464
2465 if test "$xen" != "disabled" ; then
2466   # Check whether Xen library path is specified via --extra-ldflags to avoid
2467   # overriding this setting with pkg-config output. If not, try pkg-config
2468   # to obtain all needed flags.
2469
2470   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2471      $pkg_config --exists xencontrol ; then
2472     xen_ctrl_version="$(printf '%d%02d%02d' \
2473       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2474     xen=enabled
2475     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2476     xen_pc="$xen_pc xenevtchn xendevicemodel"
2477     if $pkg_config --exists xentoolcore; then
2478       xen_pc="$xen_pc xentoolcore"
2479     fi
2480     xen_cflags="$($pkg_config --cflags $xen_pc)"
2481     xen_libs="$($pkg_config --libs $xen_pc)"
2482   else
2483
2484     xen_libs="-lxenstore -lxenctrl"
2485     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2486
2487     # First we test whether Xen headers and libraries are available.
2488     # If no, we are done and there is no Xen support.
2489     # If yes, more tests are run to detect the Xen version.
2490
2491     # Xen (any)
2492     cat > $TMPC <<EOF
2493 #include <xenctrl.h>
2494 int main(void) {
2495   return 0;
2496 }
2497 EOF
2498     if ! compile_prog "" "$xen_libs" ; then
2499       # Xen not found
2500       if test "$xen" = "enabled" ; then
2501         feature_not_found "xen" "Install xen devel"
2502       fi
2503       xen=disabled
2504
2505     # Xen unstable
2506     elif
2507         cat > $TMPC <<EOF &&
2508 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2509 #define __XEN_TOOLS__
2510 #include <xendevicemodel.h>
2511 #include <xenforeignmemory.h>
2512 int main(void) {
2513   xendevicemodel_handle *xd;
2514   xenforeignmemory_handle *xfmem;
2515
2516   xd = xendevicemodel_open(0, 0);
2517   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2518
2519   xfmem = xenforeignmemory_open(0, 0);
2520   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2521
2522   return 0;
2523 }
2524 EOF
2525         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2526       then
2527       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2528       xen_ctrl_version=41100
2529       xen=enabled
2530     elif
2531         cat > $TMPC <<EOF &&
2532 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2533 #include <xenforeignmemory.h>
2534 #include <xentoolcore.h>
2535 int main(void) {
2536   xenforeignmemory_handle *xfmem;
2537
2538   xfmem = xenforeignmemory_open(0, 0);
2539   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2540   xentoolcore_restrict_all(0);
2541
2542   return 0;
2543 }
2544 EOF
2545         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2546       then
2547       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2548       xen_ctrl_version=41000
2549       xen=enabled
2550     elif
2551         cat > $TMPC <<EOF &&
2552 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2553 #define __XEN_TOOLS__
2554 #include <xendevicemodel.h>
2555 int main(void) {
2556   xendevicemodel_handle *xd;
2557
2558   xd = xendevicemodel_open(0, 0);
2559   xendevicemodel_close(xd);
2560
2561   return 0;
2562 }
2563 EOF
2564         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2565       then
2566       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2567       xen_ctrl_version=40900
2568       xen=enabled
2569     elif
2570         cat > $TMPC <<EOF &&
2571 /*
2572  * If we have stable libs the we don't want the libxc compat
2573  * layers, regardless of what CFLAGS we may have been given.
2574  *
2575  * Also, check if xengnttab_grant_copy_segment_t is defined and
2576  * grant copy operation is implemented.
2577  */
2578 #undef XC_WANT_COMPAT_EVTCHN_API
2579 #undef XC_WANT_COMPAT_GNTTAB_API
2580 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2581 #include <xenctrl.h>
2582 #include <xenstore.h>
2583 #include <xenevtchn.h>
2584 #include <xengnttab.h>
2585 #include <xenforeignmemory.h>
2586 #include <stdint.h>
2587 #include <xen/hvm/hvm_info_table.h>
2588 #if !defined(HVM_MAX_VCPUS)
2589 # error HVM_MAX_VCPUS not defined
2590 #endif
2591 int main(void) {
2592   xc_interface *xc = NULL;
2593   xenforeignmemory_handle *xfmem;
2594   xenevtchn_handle *xe;
2595   xengnttab_handle *xg;
2596   xengnttab_grant_copy_segment_t* seg = NULL;
2597
2598   xs_daemon_open();
2599
2600   xc = xc_interface_open(0, 0, 0);
2601   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2602   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2603   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2604   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2605
2606   xfmem = xenforeignmemory_open(0, 0);
2607   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2608
2609   xe = xenevtchn_open(0, 0);
2610   xenevtchn_fd(xe);
2611
2612   xg = xengnttab_open(0, 0);
2613   xengnttab_grant_copy(xg, 0, seg);
2614
2615   return 0;
2616 }
2617 EOF
2618         compile_prog "" "$xen_libs $xen_stable_libs"
2619       then
2620       xen_ctrl_version=40800
2621       xen=enabled
2622     elif
2623         cat > $TMPC <<EOF &&
2624 /*
2625  * If we have stable libs the we don't want the libxc compat
2626  * layers, regardless of what CFLAGS we may have been given.
2627  */
2628 #undef XC_WANT_COMPAT_EVTCHN_API
2629 #undef XC_WANT_COMPAT_GNTTAB_API
2630 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2631 #include <xenctrl.h>
2632 #include <xenstore.h>
2633 #include <xenevtchn.h>
2634 #include <xengnttab.h>
2635 #include <xenforeignmemory.h>
2636 #include <stdint.h>
2637 #include <xen/hvm/hvm_info_table.h>
2638 #if !defined(HVM_MAX_VCPUS)
2639 # error HVM_MAX_VCPUS not defined
2640 #endif
2641 int main(void) {
2642   xc_interface *xc = NULL;
2643   xenforeignmemory_handle *xfmem;
2644   xenevtchn_handle *xe;
2645   xengnttab_handle *xg;
2646
2647   xs_daemon_open();
2648
2649   xc = xc_interface_open(0, 0, 0);
2650   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2651   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2652   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2653   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2654
2655   xfmem = xenforeignmemory_open(0, 0);
2656   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2657
2658   xe = xenevtchn_open(0, 0);
2659   xenevtchn_fd(xe);
2660
2661   xg = xengnttab_open(0, 0);
2662   xengnttab_map_grant_ref(xg, 0, 0, 0);
2663
2664   return 0;
2665 }
2666 EOF
2667         compile_prog "" "$xen_libs $xen_stable_libs"
2668       then
2669       xen_ctrl_version=40701
2670       xen=enabled
2671
2672     # Xen 4.6
2673     elif
2674         cat > $TMPC <<EOF &&
2675 #include <xenctrl.h>
2676 #include <xenstore.h>
2677 #include <stdint.h>
2678 #include <xen/hvm/hvm_info_table.h>
2679 #if !defined(HVM_MAX_VCPUS)
2680 # error HVM_MAX_VCPUS not defined
2681 #endif
2682 int main(void) {
2683   xc_interface *xc;
2684   xs_daemon_open();
2685   xc = xc_interface_open(0, 0, 0);
2686   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2687   xc_gnttab_open(NULL, 0);
2688   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2689   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2690   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2691   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2692   return 0;
2693 }
2694 EOF
2695         compile_prog "" "$xen_libs"
2696       then
2697       xen_ctrl_version=40600
2698       xen=enabled
2699
2700     # Xen 4.5
2701     elif
2702         cat > $TMPC <<EOF &&
2703 #include <xenctrl.h>
2704 #include <xenstore.h>
2705 #include <stdint.h>
2706 #include <xen/hvm/hvm_info_table.h>
2707 #if !defined(HVM_MAX_VCPUS)
2708 # error HVM_MAX_VCPUS not defined
2709 #endif
2710 int main(void) {
2711   xc_interface *xc;
2712   xs_daemon_open();
2713   xc = xc_interface_open(0, 0, 0);
2714   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2715   xc_gnttab_open(NULL, 0);
2716   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2717   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2718   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2719   return 0;
2720 }
2721 EOF
2722         compile_prog "" "$xen_libs"
2723       then
2724       xen_ctrl_version=40500
2725       xen=enabled
2726
2727     elif
2728         cat > $TMPC <<EOF &&
2729 #include <xenctrl.h>
2730 #include <xenstore.h>
2731 #include <stdint.h>
2732 #include <xen/hvm/hvm_info_table.h>
2733 #if !defined(HVM_MAX_VCPUS)
2734 # error HVM_MAX_VCPUS not defined
2735 #endif
2736 int main(void) {
2737   xc_interface *xc;
2738   xs_daemon_open();
2739   xc = xc_interface_open(0, 0, 0);
2740   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2741   xc_gnttab_open(NULL, 0);
2742   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2743   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2744   return 0;
2745 }
2746 EOF
2747         compile_prog "" "$xen_libs"
2748       then
2749       xen_ctrl_version=40200
2750       xen=enabled
2751
2752     else
2753       if test "$xen" = "enabled" ; then
2754         feature_not_found "xen (unsupported version)" \
2755                           "Install a supported xen (xen 4.2 or newer)"
2756       fi
2757       xen=disabled
2758     fi
2759
2760     if test "$xen" = enabled; then
2761       if test $xen_ctrl_version -ge 40701  ; then
2762         xen_libs="$xen_libs $xen_stable_libs "
2763       fi
2764     fi
2765   fi
2766 fi
2767
2768 ##########################################
2769 # GNUTLS probe
2770
2771 if test "$gnutls" != "no"; then
2772     pass="no"
2773     if $pkg_config --exists "gnutls >= 3.1.18"; then
2774         gnutls_cflags=$($pkg_config --cflags gnutls)
2775         gnutls_libs=$($pkg_config --libs gnutls)
2776         # Packaging for the static libraries is not always correct.
2777         # At least ubuntu 18.04 ships only shared libraries.
2778         write_c_skeleton
2779         if compile_prog "" "$gnutls_libs" ; then
2780             pass="yes"
2781         fi
2782     fi
2783     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2784         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2785     else
2786         gnutls="$pass"
2787     fi
2788 fi
2789
2790
2791 # If user didn't give a --disable/enable-gcrypt flag,
2792 # then mark as disabled if user requested nettle
2793 # explicitly
2794 if test -z "$gcrypt"
2795 then
2796     if test "$nettle" = "yes"
2797     then
2798         gcrypt="no"
2799     fi
2800 fi
2801
2802 # If user didn't give a --disable/enable-nettle flag,
2803 # then mark as disabled if user requested gcrypt
2804 # explicitly
2805 if test -z "$nettle"
2806 then
2807     if test "$gcrypt" = "yes"
2808     then
2809         nettle="no"
2810     fi
2811 fi
2812
2813 has_libgcrypt() {
2814     if ! has "libgcrypt-config"
2815     then
2816         return 1
2817     fi
2818
2819     if test -n "$cross_prefix"
2820     then
2821         host=$(libgcrypt-config --host)
2822         if test "$host-" != $cross_prefix
2823         then
2824             return 1
2825         fi
2826     fi
2827
2828     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2829     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2830
2831     if test $maj != 1 || test $min -lt 5
2832     then
2833        return 1
2834     fi
2835
2836     return 0
2837 }
2838
2839
2840 if test "$nettle" != "no"; then
2841     pass="no"
2842     if $pkg_config --exists "nettle >= 2.7.1"; then
2843         nettle_cflags=$($pkg_config --cflags nettle)
2844         nettle_libs=$($pkg_config --libs nettle)
2845         nettle_version=$($pkg_config --modversion nettle)
2846         # Link test to make sure the given libraries work (e.g for static).
2847         write_c_skeleton
2848         if compile_prog "" "$nettle_libs" ; then
2849             if test -z "$gcrypt"; then
2850                gcrypt="no"
2851             fi
2852             pass="yes"
2853         fi
2854     fi
2855     if test "$pass" = "yes"
2856     then
2857         cat > $TMPC << EOF
2858 #include <nettle/xts.h>
2859 int main(void) {
2860   return 0;
2861 }
2862 EOF
2863         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2864             nettle_xts=yes
2865             qemu_private_xts=no
2866         fi
2867     fi
2868     if test "$pass" = "no" && test "$nettle" = "yes"; then
2869         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2870     else
2871         nettle="$pass"
2872     fi
2873 fi
2874
2875 if test "$gcrypt" != "no"; then
2876     pass="no"
2877     if has_libgcrypt; then
2878         gcrypt_cflags=$(libgcrypt-config --cflags)
2879         gcrypt_libs=$(libgcrypt-config --libs)
2880         # Debian has removed -lgpg-error from libgcrypt-config
2881         # as it "spreads unnecessary dependencies" which in
2882         # turn breaks static builds...
2883         if test "$static" = "yes"
2884         then
2885             gcrypt_libs="$gcrypt_libs -lgpg-error"
2886         fi
2887
2888         # Link test to make sure the given libraries work (e.g for static).
2889         write_c_skeleton
2890         if compile_prog "" "$gcrypt_libs" ; then
2891             pass="yes"
2892         fi
2893     fi
2894     if test "$pass" = "yes"; then
2895         gcrypt="yes"
2896         cat > $TMPC << EOF
2897 #include <gcrypt.h>
2898 int main(void) {
2899   gcry_mac_hd_t handle;
2900   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
2901                 GCRY_MAC_FLAG_SECURE, NULL);
2902   return 0;
2903 }
2904 EOF
2905         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2906             gcrypt_hmac=yes
2907         fi
2908         cat > $TMPC << EOF
2909 #include <gcrypt.h>
2910 int main(void) {
2911   gcry_cipher_hd_t handle;
2912   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
2913   return 0;
2914 }
2915 EOF
2916         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2917             gcrypt_xts=yes
2918             qemu_private_xts=no
2919         fi
2920     elif test "$gcrypt" = "yes"; then
2921         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2922     else
2923         gcrypt="no"
2924     fi
2925 fi
2926
2927
2928 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2929 then
2930     error_exit "Only one of gcrypt & nettle can be enabled"
2931 fi
2932
2933 ##########################################
2934 # libtasn1 - only for the TLS creds/session test suite
2935
2936 tasn1=yes
2937 tasn1_cflags=""
2938 tasn1_libs=""
2939 if $pkg_config --exists "libtasn1"; then
2940     tasn1_cflags=$($pkg_config --cflags libtasn1)
2941     tasn1_libs=$($pkg_config --libs libtasn1)
2942 else
2943     tasn1=no
2944 fi
2945
2946
2947 ##########################################
2948 # PAM probe
2949
2950 if test "$auth_pam" != "no"; then
2951     cat > $TMPC <<EOF
2952 #include <security/pam_appl.h>
2953 #include <stdio.h>
2954 int main(void) {
2955    const char *service_name = "qemu";
2956    const char *user = "frank";
2957    const struct pam_conv pam_conv = { 0 };
2958    pam_handle_t *pamh = NULL;
2959    pam_start(service_name, user, &pam_conv, &pamh);
2960    return 0;
2961 }
2962 EOF
2963     if compile_prog "" "-lpam" ; then
2964         auth_pam=yes
2965     else
2966         if test "$auth_pam" = "yes"; then
2967             feature_not_found "PAM" "Install PAM development package"
2968         else
2969             auth_pam=no
2970         fi
2971     fi
2972 fi
2973
2974 ##########################################
2975 # VTE probe
2976
2977 if test "$vte" != "no"; then
2978     vteminversion="0.32.0"
2979     if $pkg_config --exists "vte-2.91"; then
2980       vtepackage="vte-2.91"
2981     else
2982       vtepackage="vte-2.90"
2983     fi
2984     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
2985         vte_cflags=$($pkg_config --cflags $vtepackage)
2986         vte_libs=$($pkg_config --libs $vtepackage)
2987         vteversion=$($pkg_config --modversion $vtepackage)
2988         vte="yes"
2989     elif test "$vte" = "yes"; then
2990         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
2991     else
2992         vte="no"
2993     fi
2994 fi
2995
2996 ##########################################
2997 # RDMA needs OpenFabrics libraries
2998 if test "$rdma" != "no" ; then
2999   cat > $TMPC <<EOF
3000 #include <rdma/rdma_cma.h>
3001 int main(void) { return 0; }
3002 EOF
3003   rdma_libs="-lrdmacm -libverbs -libumad"
3004   if compile_prog "" "$rdma_libs" ; then
3005     rdma="yes"
3006   else
3007     if test "$rdma" = "yes" ; then
3008         error_exit \
3009             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3010             " Your options:" \
3011             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3012             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3013             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3014     fi
3015     rdma="no"
3016   fi
3017 fi
3018
3019 ##########################################
3020 # PVRDMA detection
3021
3022 cat > $TMPC <<EOF &&
3023 #include <sys/mman.h>
3024
3025 int
3026 main(void)
3027 {
3028     char buf = 0;
3029     void *addr = &buf;
3030     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3031
3032     return 0;
3033 }
3034 EOF
3035
3036 if test "$rdma" = "yes" ; then
3037     case "$pvrdma" in
3038     "")
3039         if compile_prog "" ""; then
3040             pvrdma="yes"
3041         else
3042             pvrdma="no"
3043         fi
3044         ;;
3045     "yes")
3046         if ! compile_prog "" ""; then
3047             error_exit "PVRDMA is not supported since mremap is not implemented"
3048         fi
3049         pvrdma="yes"
3050         ;;
3051     "no")
3052         pvrdma="no"
3053         ;;
3054     esac
3055 else
3056     if test "$pvrdma" = "yes" ; then
3057         error_exit "PVRDMA requires rdma suppport"
3058     fi
3059     pvrdma="no"
3060 fi
3061
3062 # Let's see if enhanced reg_mr is supported
3063 if test "$pvrdma" = "yes" ; then
3064
3065 cat > $TMPC <<EOF &&
3066 #include <infiniband/verbs.h>
3067
3068 int
3069 main(void)
3070 {
3071     struct ibv_mr *mr;
3072     struct ibv_pd *pd = NULL;
3073     size_t length = 10;
3074     uint64_t iova = 0;
3075     int access = 0;
3076     void *addr = NULL;
3077
3078     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3079
3080     ibv_dereg_mr(mr);
3081
3082     return 0;
3083 }
3084 EOF
3085     if ! compile_prog "" "-libverbs"; then
3086         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3087     fi
3088 fi
3089
3090 ##########################################
3091 # xfsctl() probe, used for file-posix.c
3092 if test "$xfs" != "no" ; then
3093   cat > $TMPC << EOF
3094 #include <stddef.h>  /* NULL */
3095 #include <xfs/xfs.h>
3096 int main(void)
3097 {
3098     xfsctl(NULL, 0, 0, NULL);
3099     return 0;
3100 }
3101 EOF
3102   if compile_prog "" "" ; then
3103     xfs="yes"
3104   else
3105     if test "$xfs" = "yes" ; then
3106       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3107     fi
3108     xfs=no
3109   fi
3110 fi
3111
3112 ##########################################
3113 # vde libraries probe
3114 if test "$vde" != "no" ; then
3115   vde_libs="-lvdeplug"
3116   cat > $TMPC << EOF
3117 #include <libvdeplug.h>
3118 int main(void)
3119 {
3120     struct vde_open_args a = {0, 0, 0};
3121     char s[] = "";
3122     vde_open(s, s, &a);
3123     return 0;
3124 }
3125 EOF
3126   if compile_prog "" "$vde_libs" ; then
3127     vde=yes
3128   else
3129     if test "$vde" = "yes" ; then
3130       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3131     fi
3132     vde=no
3133   fi
3134 fi
3135
3136 ##########################################
3137 # netmap support probe
3138 # Apart from looking for netmap headers, we make sure that the host API version
3139 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3140 # a minor/major version number. Minor new features will be marked with values up
3141 # to 15, and if something happens that requires a change to the backend we will
3142 # move above 15, submit the backend fixes and modify this two bounds.
3143 if test "$netmap" != "no" ; then
3144   cat > $TMPC << EOF
3145 #include <inttypes.h>
3146 #include <net/if.h>
3147 #include <net/netmap.h>
3148 #include <net/netmap_user.h>
3149 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3150 #error
3151 #endif
3152 int main(void) { return 0; }
3153 EOF
3154   if compile_prog "" "" ; then
3155     netmap=yes
3156   else
3157     if test "$netmap" = "yes" ; then
3158       feature_not_found "netmap"
3159     fi
3160     netmap=no
3161   fi
3162 fi
3163
3164 ##########################################
3165 # detect CoreAudio
3166 if test "$coreaudio" != "no" ; then
3167   coreaudio_libs="-framework CoreAudio"
3168   cat > $TMPC << EOF
3169 #include <CoreAudio/CoreAudio.h>
3170 int main(void)
3171 {
3172   return (int)AudioGetCurrentHostTime();
3173 }
3174 EOF
3175   if compile_prog "" "$coreaudio_libs" ; then
3176     coreaudio=yes
3177   else
3178     coreaudio=no
3179   fi
3180 fi
3181
3182 ##########################################
3183 # Sound support libraries probe
3184
3185 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3186 for drv in $audio_drv_list; do
3187     case $drv in
3188     alsa | try-alsa)
3189     if $pkg_config alsa --exists; then
3190         alsa_libs=$($pkg_config alsa --libs)
3191         alsa_cflags=$($pkg_config alsa --cflags)
3192         alsa=yes
3193         if test "$drv" = "try-alsa"; then
3194             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3195         fi
3196     else
3197         if test "$drv" = "try-alsa"; then
3198             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3199         else
3200             error_exit "$drv check failed" \
3201                 "Make sure to have the $drv libs and headers installed."
3202         fi
3203     fi
3204     ;;
3205
3206     pa | try-pa)
3207     if $pkg_config libpulse --exists; then
3208         libpulse=yes
3209         pulse_libs=$($pkg_config libpulse --libs)
3210         pulse_cflags=$($pkg_config libpulse --cflags)
3211         if test "$drv" = "try-pa"; then
3212             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3213         fi
3214     else
3215         if test "$drv" = "try-pa"; then
3216             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3217         else
3218             error_exit "$drv check failed" \
3219                 "Make sure to have the $drv libs and headers installed."
3220         fi
3221     fi
3222     ;;
3223
3224     sdl)
3225     if test "$sdl" = "no"; then
3226         error_exit "sdl not found or disabled, can not use sdl audio driver"
3227     fi
3228     ;;
3229
3230     try-sdl)
3231     if test "$sdl" = "no"; then
3232         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3233     else
3234         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3235     fi
3236     ;;
3237
3238     coreaudio | try-coreaudio)
3239     if test "$coreaudio" = "no"; then
3240       if test "$drv" = "try-coreaudio"; then
3241         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio//')
3242       else
3243         error_exit "$drv check failed" \
3244                 "Make sure to have the $drv is available."
3245       fi
3246     else
3247       coreaudio_libs="-framework CoreAudio"
3248       if test "$drv" = "try-coreaudio"; then
3249         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-coreaudio/coreaudio/')
3250       fi
3251     fi
3252     ;;
3253
3254     dsound)
3255       dsound_libs="-lole32 -ldxguid"
3256       audio_win_int="yes"
3257     ;;
3258
3259     oss)
3260       oss_libs="$oss_lib"
3261     ;;
3262
3263     jack | try-jack)
3264     if $pkg_config jack --exists; then
3265         libjack=yes
3266         jack_libs=$($pkg_config jack --libs)
3267         if test "$drv" = "try-jack"; then
3268             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3269         fi
3270     else
3271         if test "$drv" = "try-jack"; then
3272             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3273         else
3274             error_exit "$drv check failed" \
3275                 "Make sure to have the $drv libs and headers installed."
3276         fi
3277     fi
3278     ;;
3279
3280     *)
3281     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3282         error_exit "Unknown driver '$drv' selected" \
3283             "Possible drivers are: $audio_possible_drivers"
3284     }
3285     ;;
3286     esac
3287 done
3288
3289 ##########################################
3290 # glib support probe
3291
3292 glib_req_ver=2.48
3293 glib_modules=gthread-2.0
3294 if test "$modules" = yes; then
3295     glib_modules="$glib_modules gmodule-export-2.0"
3296 fi
3297 if test "$plugins" = yes; then
3298     glib_modules="$glib_modules gmodule-2.0"
3299 fi
3300
3301 for i in $glib_modules; do
3302     if $pkg_config --atleast-version=$glib_req_ver $i; then
3303         glib_cflags=$($pkg_config --cflags $i)
3304         glib_libs=$($pkg_config --libs $i)
3305     else
3306         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3307     fi
3308 done
3309
3310 # This workaround is required due to a bug in pkg-config file for glib as it
3311 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3312
3313 if test "$static" = yes && test "$mingw32" = yes; then
3314     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3315 fi
3316
3317 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3318     gio_cflags=$($pkg_config --cflags gio-2.0)
3319     gio_libs=$($pkg_config --libs gio-2.0)
3320     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3321     if [ ! -x "$gdbus_codegen" ]; then
3322         gdbus_codegen=
3323     fi
3324     # Check that the libraries actually work -- Ubuntu 18.04 ships
3325     # with pkg-config --static --libs data for gio-2.0 that is missing
3326     # -lblkid and will give a link error.
3327     cat > $TMPC <<EOF
3328 #include <gio/gio.h>
3329 int main(void)
3330 {
3331     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3332     return 0;
3333 }
3334 EOF
3335     if compile_prog "$gio_cflags" "$gio_libs" ; then
3336         gio=yes
3337     else
3338         gio=no
3339     fi
3340 else
3341     gio=no
3342 fi
3343
3344 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3345     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3346     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3347 fi
3348
3349 # Sanity check that the current size_t matches the
3350 # size that glib thinks it should be. This catches
3351 # problems on multi-arch where people try to build
3352 # 32-bit QEMU while pointing at 64-bit glib headers
3353 cat > $TMPC <<EOF
3354 #include <glib.h>
3355 #include <unistd.h>
3356
3357 #define QEMU_BUILD_BUG_ON(x) \
3358   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3359
3360 int main(void) {
3361    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3362    return 0;
3363 }
3364 EOF
3365
3366 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3367     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3368                "You probably need to set PKG_CONFIG_LIBDIR"\
3369                "to point to the right pkg-config files for your"\
3370                "build target"
3371 fi
3372
3373 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3374 cat > $TMPC << EOF
3375 #include <glib.h>
3376 int main(void) { return 0; }
3377 EOF
3378 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3379     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3380         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3381         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3382     fi
3383 fi
3384
3385 # Silence clang warnings triggered by glib < 2.57.2
3386 cat > $TMPC << EOF
3387 #include <glib.h>
3388 typedef struct Foo {
3389     int i;
3390 } Foo;
3391 static void foo_free(Foo *f)
3392 {
3393     g_free(f);
3394 }
3395 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3396 int main(void) { return 0; }
3397 EOF
3398 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3399     if cc_has_warning_flag "-Wno-unused-function"; then
3400         glib_cflags="$glib_cflags -Wno-unused-function"
3401         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3402     fi
3403 fi
3404
3405 ##########################################
3406 # SHA command probe for modules
3407 if test "$modules" = yes; then
3408     shacmd_probe="sha1sum sha1 shasum"
3409     for c in $shacmd_probe; do
3410         if has $c; then
3411             shacmd="$c"
3412             break
3413         fi
3414     done
3415     if test "$shacmd" = ""; then
3416         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3417     fi
3418 fi
3419
3420 ##########################################
3421 # pthread probe
3422 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3423
3424 pthread=no
3425 cat > $TMPC << EOF
3426 #include <pthread.h>
3427 static void *f(void *p) { return NULL; }
3428 int main(void) {
3429   pthread_t thread;
3430   pthread_create(&thread, 0, f, 0);
3431   return 0;
3432 }
3433 EOF
3434 if compile_prog "" "" ; then
3435   pthread=yes
3436 else
3437   for pthread_lib in $PTHREADLIBS_LIST; do
3438     if compile_prog "" "$pthread_lib" ; then
3439       pthread=yes
3440       break
3441     fi
3442   done
3443 fi
3444
3445 if test "$mingw32" != yes && test "$pthread" = no; then
3446   error_exit "pthread check failed" \
3447       "Make sure to have the pthread libs and headers installed."
3448 fi
3449
3450 # check for pthread_setname_np with thread id
3451 pthread_setname_np_w_tid=no
3452 cat > $TMPC << EOF
3453 #include <pthread.h>
3454
3455 static void *f(void *p) { return NULL; }
3456 int main(void)
3457 {
3458     pthread_t thread;
3459     pthread_create(&thread, 0, f, 0);
3460     pthread_setname_np(thread, "QEMU");
3461     return 0;
3462 }
3463 EOF
3464 if compile_prog "" "$pthread_lib" ; then
3465   pthread_setname_np_w_tid=yes
3466 fi
3467
3468 # check for pthread_setname_np without thread id
3469 pthread_setname_np_wo_tid=no
3470 cat > $TMPC << EOF
3471 #include <pthread.h>
3472
3473 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3474 int main(void)
3475 {
3476     pthread_t thread;
3477     pthread_create(&thread, 0, f, 0);
3478     return 0;
3479 }
3480 EOF
3481 if compile_prog "" "$pthread_lib" ; then
3482   pthread_setname_np_wo_tid=yes
3483 fi
3484
3485 ##########################################
3486 # libssh probe
3487 if test "$libssh" != "no" ; then
3488   if $pkg_config --exists libssh; then
3489     libssh_cflags=$($pkg_config libssh --cflags)
3490     libssh_libs=$($pkg_config libssh --libs)
3491     libssh=yes
3492   else
3493     if test "$libssh" = "yes" ; then
3494       error_exit "libssh required for --enable-libssh"
3495     fi
3496     libssh=no
3497   fi
3498 fi
3499
3500 ##########################################
3501 # Check for libssh 0.8
3502 # This is done like this instead of using the LIBSSH_VERSION_* and
3503 # SSH_VERSION_* macros because some distributions in the past shipped
3504 # snapshots of the future 0.8 from Git, and those snapshots did not
3505 # have updated version numbers (still referring to 0.7.0).
3506
3507 if test "$libssh" = "yes"; then
3508   cat > $TMPC <<EOF
3509 #include <libssh/libssh.h>
3510 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3511 EOF
3512   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3513     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3514   fi
3515 fi
3516
3517 ##########################################
3518 # linux-aio probe
3519
3520 if test "$linux_aio" != "no" ; then
3521   cat > $TMPC <<EOF
3522 #include <libaio.h>
3523 #include <sys/eventfd.h>
3524 #include <stddef.h>
3525 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3526 EOF
3527   if compile_prog "" "-laio" ; then
3528     linux_aio=yes
3529   else
3530     if test "$linux_aio" = "yes" ; then
3531       feature_not_found "linux AIO" "Install libaio devel"
3532     fi
3533     linux_aio=no
3534   fi
3535 fi
3536 ##########################################
3537 # linux-io-uring probe
3538
3539 if test "$linux_io_uring" != "no" ; then
3540   if $pkg_config liburing; then
3541     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3542     linux_io_uring_libs=$($pkg_config --libs liburing)
3543     linux_io_uring=yes
3544   else
3545     if test "$linux_io_uring" = "yes" ; then
3546       feature_not_found "linux io_uring" "Install liburing devel"
3547     fi
3548     linux_io_uring=no
3549   fi
3550 fi
3551
3552 ##########################################
3553 # TPM emulation is only on POSIX
3554
3555 if test "$tpm" = ""; then
3556   if test "$mingw32" = "yes"; then
3557     tpm=no
3558   else
3559     tpm=yes
3560   fi
3561 elif test "$tpm" = "yes"; then
3562   if test "$mingw32" = "yes" ; then
3563     error_exit "TPM emulation only available on POSIX systems"
3564   fi
3565 fi
3566
3567 ##########################################
3568 # iovec probe
3569 cat > $TMPC <<EOF
3570 #include <sys/types.h>
3571 #include <sys/uio.h>
3572 #include <unistd.h>
3573 int main(void) { return sizeof(struct iovec); }
3574 EOF
3575 iovec=no
3576 if compile_prog "" "" ; then
3577   iovec=yes
3578 fi
3579
3580 ##########################################
3581 # fdt probe
3582
3583 case "$fdt" in
3584   auto | enabled | internal)
3585     # Simpler to always update submodule, even if not needed.
3586     if test "$git_submodules_action" != "ignore"; then
3587       git_submodules="${git_submodules} dtc"
3588     fi
3589     ;;
3590 esac
3591
3592 ##########################################
3593 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3594
3595 gbm="no"
3596 if $pkg_config gbm; then
3597     gbm_cflags="$($pkg_config --cflags gbm)"
3598     gbm_libs="$($pkg_config --libs gbm)"
3599     gbm="yes"
3600 fi
3601
3602 if test "$opengl" != "no" ; then
3603   opengl_pkgs="epoxy gbm"
3604   if $pkg_config $opengl_pkgs; then
3605     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3606     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3607     opengl=yes
3608   else
3609     if test "$opengl" = "yes" ; then
3610       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3611     fi
3612     opengl_cflags=""
3613     opengl_libs=""
3614     opengl=no
3615   fi
3616 fi
3617
3618 if test "$opengl" = "yes"; then
3619   cat > $TMPC << EOF
3620 #include <epoxy/egl.h>
3621 #ifndef EGL_MESA_image_dma_buf_export
3622 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3623 #endif
3624 int main(void) { return 0; }
3625 EOF
3626   if compile_prog "" "" ; then
3627     opengl_dmabuf=yes
3628   fi
3629 fi
3630
3631 ##########################################
3632 # libxml2 probe
3633 if test "$libxml2" != "no" ; then
3634     if $pkg_config --exists libxml-2.0; then
3635         libxml2="yes"
3636         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3637         libxml2_libs=$($pkg_config --libs libxml-2.0)
3638     else
3639         if test "$libxml2" = "yes"; then
3640             feature_not_found "libxml2" "Install libxml2 devel"
3641         fi
3642         libxml2="no"
3643     fi
3644 fi
3645
3646 # Check for inotify functions when we are building linux-user
3647 # emulator.  This is done because older glibc versions don't
3648 # have syscall stubs for these implemented.  In that case we
3649 # don't provide them even if kernel supports them.
3650 #
3651 inotify=no
3652 cat > $TMPC << EOF
3653 #include <sys/inotify.h>
3654
3655 int
3656 main(void)
3657 {
3658         /* try to start inotify */
3659         return inotify_init();
3660 }
3661 EOF
3662 if compile_prog "" "" ; then
3663   inotify=yes
3664 fi
3665
3666 inotify1=no
3667 cat > $TMPC << EOF
3668 #include <sys/inotify.h>
3669
3670 int
3671 main(void)
3672 {
3673     /* try to start inotify */
3674     return inotify_init1(0);
3675 }
3676 EOF
3677 if compile_prog "" "" ; then
3678   inotify1=yes
3679 fi
3680
3681 # check if pipe2 is there
3682 pipe2=no
3683 cat > $TMPC << EOF
3684 #include <unistd.h>
3685 #include <fcntl.h>
3686
3687 int main(void)
3688 {
3689     int pipefd[2];
3690     return pipe2(pipefd, O_CLOEXEC);
3691 }
3692 EOF
3693 if compile_prog "" "" ; then
3694   pipe2=yes
3695 fi
3696
3697 # check if accept4 is there
3698 accept4=no
3699 cat > $TMPC << EOF
3700 #include <sys/socket.h>
3701 #include <stddef.h>
3702
3703 int main(void)
3704 {
3705     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3706     return 0;
3707 }
3708 EOF
3709 if compile_prog "" "" ; then
3710   accept4=yes
3711 fi
3712
3713 # check if tee/splice is there. vmsplice was added same time.
3714 splice=no
3715 cat > $TMPC << EOF
3716 #include <unistd.h>
3717 #include <fcntl.h>
3718 #include <limits.h>
3719
3720 int main(void)
3721 {
3722     int len, fd = 0;
3723     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3724     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3725     return 0;
3726 }
3727 EOF
3728 if compile_prog "" "" ; then
3729   splice=yes
3730 fi
3731
3732 ##########################################
3733 # libnuma probe
3734
3735 if test "$numa" != "no" ; then
3736   cat > $TMPC << EOF
3737 #include <numa.h>
3738 int main(void) { return numa_available(); }
3739 EOF
3740
3741   if compile_prog "" "-lnuma" ; then
3742     numa=yes
3743     numa_libs="-lnuma"
3744   else
3745     if test "$numa" = "yes" ; then
3746       feature_not_found "numa" "install numactl devel"
3747     fi
3748     numa=no
3749   fi
3750 fi
3751
3752 malloc=system
3753 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3754     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3755     exit 1
3756 elif test "$tcmalloc" = "yes" ; then
3757     malloc=tcmalloc
3758 elif test "$jemalloc" = "yes" ; then
3759     malloc=jemalloc
3760 fi
3761
3762 ##########################################
3763 # signalfd probe
3764 signalfd="no"
3765 cat > $TMPC << EOF
3766 #include <unistd.h>
3767 #include <sys/syscall.h>
3768 #include <signal.h>
3769 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3770 EOF
3771
3772 if compile_prog "" "" ; then
3773   signalfd=yes
3774 fi
3775
3776 # check if optreset global is declared by <getopt.h>
3777 optreset="no"
3778 cat > $TMPC << EOF
3779 #include <getopt.h>
3780 int main(void) { return optreset; }
3781 EOF
3782
3783 if compile_prog "" "" ; then
3784   optreset=yes
3785 fi
3786
3787 # check if eventfd is supported
3788 eventfd=no
3789 cat > $TMPC << EOF
3790 #include <sys/eventfd.h>
3791
3792 int main(void)
3793 {
3794     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3795 }
3796 EOF
3797 if compile_prog "" "" ; then
3798   eventfd=yes
3799 fi
3800
3801 # check if memfd is supported
3802 memfd=no
3803 cat > $TMPC << EOF
3804 #include <sys/mman.h>
3805
3806 int main(void)
3807 {
3808     return memfd_create("foo", MFD_ALLOW_SEALING);
3809 }
3810 EOF
3811 if compile_prog "" "" ; then
3812   memfd=yes
3813 fi
3814
3815 # check for usbfs
3816 have_usbfs=no
3817 if test "$linux_user" = "yes"; then
3818   cat > $TMPC << EOF
3819 #include <linux/usbdevice_fs.h>
3820
3821 #ifndef USBDEVFS_GET_CAPABILITIES
3822 #error "USBDEVFS_GET_CAPABILITIES undefined"
3823 #endif
3824
3825 #ifndef USBDEVFS_DISCONNECT_CLAIM
3826 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3827 #endif
3828
3829 int main(void)
3830 {
3831     return 0;
3832 }
3833 EOF
3834   if compile_prog "" ""; then
3835     have_usbfs=yes
3836   fi
3837 fi
3838
3839 # check for fallocate
3840 fallocate=no
3841 cat > $TMPC << EOF
3842 #include <fcntl.h>
3843
3844 int main(void)
3845 {
3846     fallocate(0, 0, 0, 0);
3847     return 0;
3848 }
3849 EOF
3850 if compile_prog "" "" ; then
3851   fallocate=yes
3852 fi
3853
3854 # check for fallocate hole punching
3855 fallocate_punch_hole=no
3856 cat > $TMPC << EOF
3857 #include <fcntl.h>
3858 #include <linux/falloc.h>
3859
3860 int main(void)
3861 {
3862     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3863     return 0;
3864 }
3865 EOF
3866 if compile_prog "" "" ; then
3867   fallocate_punch_hole=yes
3868 fi
3869
3870 # check that fallocate supports range zeroing inside the file
3871 fallocate_zero_range=no
3872 cat > $TMPC << EOF
3873 #include <fcntl.h>
3874 #include <linux/falloc.h>
3875
3876 int main(void)
3877 {
3878     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3879     return 0;
3880 }
3881 EOF
3882 if compile_prog "" "" ; then
3883   fallocate_zero_range=yes
3884 fi
3885
3886 # check for posix_fallocate
3887 posix_fallocate=no
3888 cat > $TMPC << EOF
3889 #include <fcntl.h>
3890
3891 int main(void)
3892 {
3893     posix_fallocate(0, 0, 0);
3894     return 0;
3895 }
3896 EOF
3897 if compile_prog "" "" ; then
3898     posix_fallocate=yes
3899 fi
3900
3901 # check for sync_file_range
3902 sync_file_range=no
3903 cat > $TMPC << EOF
3904 #include <fcntl.h>
3905
3906 int main(void)
3907 {
3908     sync_file_range(0, 0, 0, 0);
3909     return 0;
3910 }
3911 EOF
3912 if compile_prog "" "" ; then
3913   sync_file_range=yes
3914 fi
3915
3916 # check for linux/fiemap.h and FS_IOC_FIEMAP
3917 fiemap=no
3918 cat > $TMPC << EOF
3919 #include <sys/ioctl.h>
3920 #include <linux/fs.h>
3921 #include <linux/fiemap.h>
3922
3923 int main(void)
3924 {
3925     ioctl(0, FS_IOC_FIEMAP, 0);
3926     return 0;
3927 }
3928 EOF
3929 if compile_prog "" "" ; then
3930   fiemap=yes
3931 fi
3932
3933 # check for dup3
3934 dup3=no
3935 cat > $TMPC << EOF
3936 #include <unistd.h>
3937
3938 int main(void)
3939 {
3940     dup3(0, 0, 0);
3941     return 0;
3942 }
3943 EOF
3944 if compile_prog "" "" ; then
3945   dup3=yes
3946 fi
3947
3948 # check for ppoll support
3949 ppoll=no
3950 cat > $TMPC << EOF
3951 #include <poll.h>
3952
3953 int main(void)
3954 {
3955     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3956     ppoll(&pfd, 1, 0, 0);
3957     return 0;
3958 }
3959 EOF
3960 if compile_prog "" "" ; then
3961   ppoll=yes
3962 fi
3963
3964 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3965 prctl_pr_set_timerslack=no
3966 cat > $TMPC << EOF
3967 #include <sys/prctl.h>
3968
3969 int main(void)
3970 {
3971     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3972     return 0;
3973 }
3974 EOF
3975 if compile_prog "" "" ; then
3976   prctl_pr_set_timerslack=yes
3977 fi
3978
3979 # check for epoll support
3980 epoll=no
3981 cat > $TMPC << EOF
3982 #include <sys/epoll.h>
3983
3984 int main(void)
3985 {
3986     epoll_create(0);
3987     return 0;
3988 }
3989 EOF
3990 if compile_prog "" "" ; then
3991   epoll=yes
3992 fi
3993
3994 # epoll_create1 is a later addition
3995 # so we must check separately for its presence
3996 epoll_create1=no
3997 cat > $TMPC << EOF
3998 #include <sys/epoll.h>
3999
4000 int main(void)
4001 {
4002     /* Note that we use epoll_create1 as a value, not as
4003      * a function being called. This is necessary so that on
4004      * old SPARC glibc versions where the function was present in
4005      * the library but not declared in the header file we will
4006      * fail the configure check. (Otherwise we will get a compiler
4007      * warning but not an error, and will proceed to fail the
4008      * qemu compile where we compile with -Werror.)
4009      */
4010     return (int)(uintptr_t)&epoll_create1;
4011 }
4012 EOF
4013 if compile_prog "" "" ; then
4014   epoll_create1=yes
4015 fi
4016
4017 # check for sendfile support
4018 sendfile=no
4019 cat > $TMPC << EOF
4020 #include <sys/sendfile.h>
4021
4022 int main(void)
4023 {
4024     return sendfile(0, 0, 0, 0);
4025 }
4026 EOF
4027 if compile_prog "" "" ; then
4028   sendfile=yes
4029 fi
4030
4031 # check for timerfd support (glibc 2.8 and newer)
4032 timerfd=no
4033 cat > $TMPC << EOF
4034 #include <sys/timerfd.h>
4035
4036 int main(void)
4037 {
4038     return(timerfd_create(CLOCK_REALTIME, 0));
4039 }
4040 EOF
4041 if compile_prog "" "" ; then
4042   timerfd=yes
4043 fi
4044
4045 # check for setns and unshare support
4046 setns=no
4047 cat > $TMPC << EOF
4048 #include <sched.h>
4049
4050 int main(void)
4051 {
4052     int ret;
4053     ret = setns(0, 0);
4054     ret = unshare(0);
4055     return ret;
4056 }
4057 EOF
4058 if compile_prog "" "" ; then
4059   setns=yes
4060 fi
4061
4062 # clock_adjtime probe
4063 clock_adjtime=no
4064 cat > $TMPC <<EOF
4065 #include <time.h>
4066 #include <sys/timex.h>
4067
4068 int main(void)
4069 {
4070     return clock_adjtime(0, 0);
4071 }
4072 EOF
4073 clock_adjtime=no
4074 if compile_prog "" "" ; then
4075   clock_adjtime=yes
4076 fi
4077
4078 # syncfs probe
4079 syncfs=no
4080 cat > $TMPC <<EOF
4081 #include <unistd.h>
4082
4083 int main(void)
4084 {
4085     return syncfs(0);
4086 }
4087 EOF
4088 syncfs=no
4089 if compile_prog "" "" ; then
4090   syncfs=yes
4091 fi
4092
4093 # Search for bswap_32 function
4094 byteswap_h=no
4095 cat > $TMPC << EOF
4096 #include <byteswap.h>
4097 int main(void) { return bswap_32(0); }
4098 EOF
4099 if compile_prog "" "" ; then
4100   byteswap_h=yes
4101 fi
4102
4103 # Search for bswap32 function
4104 bswap_h=no
4105 cat > $TMPC << EOF
4106 #include <sys/endian.h>
4107 #include <sys/types.h>
4108 #include <machine/bswap.h>
4109 int main(void) { return bswap32(0); }
4110 EOF
4111 if compile_prog "" "" ; then
4112   bswap_h=yes
4113 fi
4114
4115 # Check whether we have openpty() in either libc or libutil
4116 cat > $TMPC << EOF
4117 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4118 int main(void) { return openpty(0, 0, 0, 0, 0); }
4119 EOF
4120
4121 have_openpty="no"
4122 if compile_prog "" "" ; then
4123   have_openpty="yes"
4124 else
4125   if compile_prog "" "-lutil" ; then
4126     have_openpty="yes"
4127   fi
4128 fi
4129
4130 ##########################################
4131 # spice probe
4132 if test "$spice" != "no" ; then
4133   cat > $TMPC << EOF
4134 #include <spice.h>
4135 int main(void) { spice_server_new(); return 0; }
4136 EOF
4137   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4138   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4139   if $pkg_config --atleast-version=0.12.5 spice-server && \
4140      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4141      compile_prog "$spice_cflags" "$spice_libs" ; then
4142     spice="yes"
4143   else
4144     if test "$spice" = "yes" ; then
4145       feature_not_found "spice" \
4146           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4147     fi
4148     spice="no"
4149   fi
4150 fi
4151
4152 # check for smartcard support
4153 if test "$smartcard" != "no"; then
4154     if $pkg_config --atleast-version=2.5.1 libcacard; then
4155         libcacard_cflags=$($pkg_config --cflags libcacard)
4156         libcacard_libs=$($pkg_config --libs libcacard)
4157         smartcard="yes"
4158     else
4159         if test "$smartcard" = "yes"; then
4160             feature_not_found "smartcard" "Install libcacard devel"
4161         fi
4162         smartcard="no"
4163     fi
4164 fi
4165
4166 # check for libusb
4167 if test "$libusb" != "no" ; then
4168     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4169         libusb="yes"
4170         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4171         libusb_libs=$($pkg_config --libs libusb-1.0)
4172     else
4173         if test "$libusb" = "yes"; then
4174             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4175         fi
4176         libusb="no"
4177     fi
4178 fi
4179
4180 # check for usbredirparser for usb network redirection support
4181 if test "$usb_redir" != "no" ; then
4182     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4183         usb_redir="yes"
4184         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4185         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4186     else
4187         if test "$usb_redir" = "yes"; then
4188             feature_not_found "usb-redir" "Install usbredir devel"
4189         fi
4190         usb_redir="no"
4191     fi
4192 fi
4193
4194 ##########################################
4195 # check if we have VSS SDK headers for win
4196
4197 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4198         test "$vss_win32_sdk" != "no" ; then
4199   case "$vss_win32_sdk" in
4200     "")   vss_win32_include="-isystem $source_path" ;;
4201     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4202           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4203           vss_win32_include="-isystem $source_path/.sdk/vss"
4204           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4205           ;;
4206     *)    vss_win32_include="-isystem $vss_win32_sdk"
4207   esac
4208   cat > $TMPC << EOF
4209 #define __MIDL_user_allocate_free_DEFINED__
4210 #include <inc/win2003/vss.h>
4211 int main(void) { return VSS_CTX_BACKUP; }
4212 EOF
4213   if compile_prog "$vss_win32_include" "" ; then
4214     guest_agent_with_vss="yes"
4215     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4216     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4217     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4218   else
4219     if test "$vss_win32_sdk" != "" ; then
4220       echo "ERROR: Please download and install Microsoft VSS SDK:"
4221       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4222       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4223       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4224       echo "ERROR: The headers are extracted in the directory \`inc'."
4225       feature_not_found "VSS support"
4226     fi
4227     guest_agent_with_vss="no"
4228   fi
4229 fi
4230
4231 ##########################################
4232 # lookup Windows platform SDK (if not specified)
4233 # The SDK is needed only to build .tlb (type library) file of guest agent
4234 # VSS provider from the source. It is usually unnecessary because the
4235 # pre-compiled .tlb file is included.
4236
4237 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4238         test "$guest_agent_with_vss" = "yes" ; then
4239   if test -z "$win_sdk"; then
4240     programfiles="$PROGRAMFILES"
4241     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4242     if test -n "$programfiles"; then
4243       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4244     else
4245       feature_not_found "Windows SDK"
4246     fi
4247   elif test "$win_sdk" = "no"; then
4248     win_sdk=""
4249   fi
4250 fi
4251
4252 ##########################################
4253 # check if mingw environment provides a recent ntddscsi.h
4254 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4255   cat > $TMPC << EOF
4256 #include <windows.h>
4257 #include <ntddscsi.h>
4258 int main(void) {
4259 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4260 #error Missing required ioctl definitions
4261 #endif
4262   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4263   return addr.Lun;
4264 }
4265 EOF
4266   if compile_prog "" "" ; then
4267     guest_agent_ntddscsi=yes
4268     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4269   fi
4270 fi
4271
4272 ##########################################
4273 # virgl renderer probe
4274
4275 if test "$virglrenderer" != "no" ; then
4276   cat > $TMPC << EOF
4277 #include <virglrenderer.h>
4278 int main(void) { virgl_renderer_poll(); return 0; }
4279 EOF
4280   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4281   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4282   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4283   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4284      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4285     virglrenderer="yes"
4286   else
4287     if test "$virglrenderer" = "yes" ; then
4288       feature_not_found "virglrenderer"
4289     fi
4290     virglrenderer="no"
4291   fi
4292 fi
4293
4294 ##########################################
4295 # capstone
4296
4297 case "$capstone" in
4298   auto | enabled | internal)
4299     # Simpler to always update submodule, even if not needed.
4300     if test "$git_submodules_action" != "ignore"; then
4301       git_submodules="${git_submodules} capstone"
4302     fi
4303     ;;
4304 esac
4305
4306 ##########################################
4307 # check if we have fdatasync
4308
4309 fdatasync=no
4310 cat > $TMPC << EOF
4311 #include <unistd.h>
4312 int main(void) {
4313 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4314 return fdatasync(0);
4315 #else
4316 #error Not supported
4317 #endif
4318 }
4319 EOF
4320 if compile_prog "" "" ; then
4321     fdatasync=yes
4322 fi
4323
4324 ##########################################
4325 # check if we have madvise
4326
4327 madvise=no
4328 cat > $TMPC << EOF
4329 #include <sys/types.h>
4330 #include <sys/mman.h>
4331 #include <stddef.h>
4332 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4333 EOF
4334 if compile_prog "" "" ; then
4335     madvise=yes
4336 fi
4337
4338 ##########################################
4339 # check if we have posix_madvise
4340
4341 posix_madvise=no
4342 cat > $TMPC << EOF
4343 #include <sys/mman.h>
4344 #include <stddef.h>
4345 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4346 EOF
4347 if compile_prog "" "" ; then
4348     posix_madvise=yes
4349 fi
4350
4351 ##########################################
4352 # check if we have posix_memalign()
4353
4354 posix_memalign=no
4355 cat > $TMPC << EOF
4356 #include <stdlib.h>
4357 int main(void) {
4358     void *p;
4359     return posix_memalign(&p, 8, 8);
4360 }
4361 EOF
4362 if compile_prog "" "" ; then
4363     posix_memalign=yes
4364 fi
4365
4366 ##########################################
4367 # check if we have posix_syslog
4368
4369 posix_syslog=no
4370 cat > $TMPC << EOF
4371 #include <syslog.h>
4372 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4373 EOF
4374 if compile_prog "" "" ; then
4375     posix_syslog=yes
4376 fi
4377
4378 ##########################################
4379 # check if we have sem_timedwait
4380
4381 sem_timedwait=no
4382 cat > $TMPC << EOF
4383 #include <semaphore.h>
4384 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4385 EOF
4386 if compile_prog "" "" ; then
4387     sem_timedwait=yes
4388 fi
4389
4390 ##########################################
4391 # check if we have strchrnul
4392
4393 strchrnul=no
4394 cat > $TMPC << EOF
4395 #include <string.h>
4396 int main(void);
4397 // Use a haystack that the compiler shouldn't be able to constant fold
4398 char *haystack = (char*)&main;
4399 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4400 EOF
4401 if compile_prog "" "" ; then
4402     strchrnul=yes
4403 fi
4404
4405 #########################################
4406 # check if we have st_atim
4407
4408 st_atim=no
4409 cat > $TMPC << EOF
4410 #include <sys/stat.h>
4411 #include <stddef.h>
4412 int main(void) { return offsetof(struct stat, st_atim); }
4413 EOF
4414 if compile_prog "" "" ; then
4415     st_atim=yes
4416 fi
4417
4418 ##########################################
4419 # check if trace backend exists
4420
4421 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4422 if test "$?" -ne 0 ; then
4423   error_exit "invalid trace backends" \
4424       "Please choose supported trace backends."
4425 fi
4426
4427 ##########################################
4428 # For 'ust' backend, test if ust headers are present
4429 if have_backend "ust"; then
4430   cat > $TMPC << EOF
4431 #include <lttng/tracepoint.h>
4432 int main(void) { return 0; }
4433 EOF
4434   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4435     if $pkg_config lttng-ust --exists; then
4436       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4437     else
4438       lttng_ust_libs="-llttng-ust -ldl"
4439     fi
4440     if $pkg_config liburcu-bp --exists; then
4441       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4442     else
4443       urcu_bp_libs="-lurcu-bp"
4444     fi
4445   else
4446     error_exit "Trace backend 'ust' missing lttng-ust header files"
4447   fi
4448 fi
4449
4450 ##########################################
4451 # For 'dtrace' backend, test if 'dtrace' command is present
4452 if have_backend "dtrace"; then
4453   if ! has 'dtrace' ; then
4454     error_exit "dtrace command is not found in PATH $PATH"
4455   fi
4456   trace_backend_stap="no"
4457   if has 'stap' ; then
4458     trace_backend_stap="yes"
4459
4460     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4461     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4462     # instead. QEMU --enable-modules depends on this because the SystemTap
4463     # semaphores are linked into the main binary and not the module's shared
4464     # object.
4465     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4466   fi
4467 fi
4468
4469 ##########################################
4470 # check and set a backend for coroutine
4471
4472 # We prefer ucontext, but it's not always possible. The fallback
4473 # is sigcontext. On Windows the only valid backend is the Windows
4474 # specific one.
4475
4476 ucontext_works=no
4477 if test "$darwin" != "yes"; then
4478   cat > $TMPC << EOF
4479 #include <ucontext.h>
4480 #ifdef __stub_makecontext
4481 #error Ignoring glibc stub makecontext which will always fail
4482 #endif
4483 int main(void) { makecontext(0, 0, 0); return 0; }
4484 EOF
4485   if compile_prog "" "" ; then
4486     ucontext_works=yes
4487   fi
4488 fi
4489
4490 if test "$coroutine" = ""; then
4491   if test "$mingw32" = "yes"; then
4492     coroutine=win32
4493   elif test "$ucontext_works" = "yes"; then
4494     coroutine=ucontext
4495   else
4496     coroutine=sigaltstack
4497   fi
4498 else
4499   case $coroutine in
4500   windows)
4501     if test "$mingw32" != "yes"; then
4502       error_exit "'windows' coroutine backend only valid for Windows"
4503     fi
4504     # Unfortunately the user visible backend name doesn't match the
4505     # coroutine-*.c filename for this case, so we have to adjust it here.
4506     coroutine=win32
4507     ;;
4508   ucontext)
4509     if test "$ucontext_works" != "yes"; then
4510       feature_not_found "ucontext"
4511     fi
4512     ;;
4513   sigaltstack)
4514     if test "$mingw32" = "yes"; then
4515       error_exit "only the 'windows' coroutine backend is valid for Windows"
4516     fi
4517     ;;
4518   *)
4519     error_exit "unknown coroutine backend $coroutine"
4520     ;;
4521   esac
4522 fi
4523
4524 if test "$coroutine_pool" = ""; then
4525   coroutine_pool=yes
4526 fi
4527
4528 if test "$debug_stack_usage" = "yes"; then
4529   if test "$coroutine_pool" = "yes"; then
4530     echo "WARN: disabling coroutine pool for stack usage debugging"
4531     coroutine_pool=no
4532   fi
4533 fi
4534
4535 ##################################################
4536 # SafeStack
4537
4538
4539 if test "$safe_stack" = "yes"; then
4540 cat > $TMPC << EOF
4541 int main(int argc, char *argv[])
4542 {
4543 #if ! __has_feature(safe_stack)
4544 #error SafeStack Disabled
4545 #endif
4546     return 0;
4547 }
4548 EOF
4549   flag="-fsanitize=safe-stack"
4550   # Check that safe-stack is supported and enabled.
4551   if compile_prog "-Werror $flag" "$flag"; then
4552     # Flag needed both at compilation and at linking
4553     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4554     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4555   else
4556     error_exit "SafeStack not supported by your compiler"
4557   fi
4558   if test "$coroutine" != "ucontext"; then
4559     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4560   fi
4561 else
4562 cat > $TMPC << EOF
4563 int main(int argc, char *argv[])
4564 {
4565 #if defined(__has_feature)
4566 #if __has_feature(safe_stack)
4567 #error SafeStack Enabled
4568 #endif
4569 #endif
4570     return 0;
4571 }
4572 EOF
4573 if test "$safe_stack" = "no"; then
4574   # Make sure that safe-stack is disabled
4575   if ! compile_prog "-Werror" ""; then
4576     # SafeStack was already enabled, try to explicitly remove the feature
4577     flag="-fno-sanitize=safe-stack"
4578     if ! compile_prog "-Werror $flag" "$flag"; then
4579       error_exit "Configure cannot disable SafeStack"
4580     fi
4581     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4582     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4583   fi
4584 else # "$safe_stack" = ""
4585   # Set safe_stack to yes or no based on pre-existing flags
4586   if compile_prog "-Werror" ""; then
4587     safe_stack="no"
4588   else
4589     safe_stack="yes"
4590     if test "$coroutine" != "ucontext"; then
4591       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4592     fi
4593   fi
4594 fi
4595 fi
4596
4597 ##########################################
4598 # check if we have open_by_handle_at
4599
4600 open_by_handle_at=no
4601 cat > $TMPC << EOF
4602 #include <fcntl.h>
4603 #if !defined(AT_EMPTY_PATH)
4604 # error missing definition
4605 #else
4606 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4607 #endif
4608 EOF
4609 if compile_prog "" "" ; then
4610     open_by_handle_at=yes
4611 fi
4612
4613 ########################################
4614 # check if we have linux/magic.h
4615
4616 linux_magic_h=no
4617 cat > $TMPC << EOF
4618 #include <linux/magic.h>
4619 int main(void) {
4620   return 0;
4621 }
4622 EOF
4623 if compile_prog "" "" ; then
4624     linux_magic_h=yes
4625 fi
4626
4627 ########################################
4628 # check if we have valgrind/valgrind.h
4629
4630 valgrind_h=no
4631 cat > $TMPC << EOF
4632 #include <valgrind/valgrind.h>
4633 int main(void) {
4634   return 0;
4635 }
4636 EOF
4637 if compile_prog "" "" ; then
4638     valgrind_h=yes
4639 fi
4640
4641 ########################################
4642 # check if environ is declared
4643
4644 has_environ=no
4645 cat > $TMPC << EOF
4646 #include <unistd.h>
4647 int main(void) {
4648     environ = 0;
4649     return 0;
4650 }
4651 EOF
4652 if compile_prog "" "" ; then
4653     has_environ=yes
4654 fi
4655
4656 ########################################
4657 # check if cpuid.h is usable.
4658
4659 cat > $TMPC << EOF
4660 #include <cpuid.h>
4661 int main(void) {
4662     unsigned a, b, c, d;
4663     int max = __get_cpuid_max(0, 0);
4664
4665     if (max >= 1) {
4666         __cpuid(1, a, b, c, d);
4667     }
4668
4669     if (max >= 7) {
4670         __cpuid_count(7, 0, a, b, c, d);
4671     }
4672
4673     return 0;
4674 }
4675 EOF
4676 if compile_prog "" "" ; then
4677     cpuid_h=yes
4678 fi
4679
4680 ##########################################
4681 # avx2 optimization requirement check
4682 #
4683 # There is no point enabling this if cpuid.h is not usable,
4684 # since we won't be able to select the new routines.
4685
4686 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4687   cat > $TMPC << EOF
4688 #pragma GCC push_options
4689 #pragma GCC target("avx2")
4690 #include <cpuid.h>
4691 #include <immintrin.h>
4692 static int bar(void *a) {
4693     __m256i x = *(__m256i *)a;
4694     return _mm256_testz_si256(x, x);
4695 }
4696 int main(int argc, char *argv[]) { return bar(argv[0]); }
4697 EOF
4698   if compile_object "" ; then
4699     avx2_opt="yes"
4700   else
4701     avx2_opt="no"
4702   fi
4703 fi
4704
4705 ##########################################
4706 # avx512f optimization requirement check
4707 #
4708 # There is no point enabling this if cpuid.h is not usable,
4709 # since we won't be able to select the new routines.
4710 # by default, it is turned off.
4711 # if user explicitly want to enable it, check environment
4712
4713 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4714   cat > $TMPC << EOF
4715 #pragma GCC push_options
4716 #pragma GCC target("avx512f")
4717 #include <cpuid.h>
4718 #include <immintrin.h>
4719 static int bar(void *a) {
4720     __m512i x = *(__m512i *)a;
4721     return _mm512_test_epi64_mask(x, x);
4722 }
4723 int main(int argc, char *argv[])
4724 {
4725         return bar(argv[0]);
4726 }
4727 EOF
4728   if ! compile_object "" ; then
4729     avx512f_opt="no"
4730   fi
4731 else
4732   avx512f_opt="no"
4733 fi
4734
4735 ########################################
4736 # check if __[u]int128_t is usable.
4737
4738 int128=no
4739 cat > $TMPC << EOF
4740 __int128_t a;
4741 __uint128_t b;
4742 int main (void) {
4743   a = a + b;
4744   b = a * b;
4745   a = a * a;
4746   return 0;
4747 }
4748 EOF
4749 if compile_prog "" "" ; then
4750     int128=yes
4751 fi
4752
4753 #########################################
4754 # See if 128-bit atomic operations are supported.
4755
4756 atomic128=no
4757 if test "$int128" = "yes"; then
4758   cat > $TMPC << EOF
4759 int main(void)
4760 {
4761   unsigned __int128 x = 0, y = 0;
4762   y = __atomic_load_16(&x, 0);
4763   __atomic_store_16(&x, y, 0);
4764   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
4765   return 0;
4766 }
4767 EOF
4768   if compile_prog "" "" ; then
4769     atomic128=yes
4770   fi
4771 fi
4772
4773 cmpxchg128=no
4774 if test "$int128" = yes && test "$atomic128" = no; then
4775   cat > $TMPC << EOF
4776 int main(void)
4777 {
4778   unsigned __int128 x = 0, y = 0;
4779   __sync_val_compare_and_swap_16(&x, y, x);
4780   return 0;
4781 }
4782 EOF
4783   if compile_prog "" "" ; then
4784     cmpxchg128=yes
4785   fi
4786 fi
4787
4788 #########################################
4789 # See if 64-bit atomic operations are supported.
4790 # Note that without __atomic builtins, we can only
4791 # assume atomic loads/stores max at pointer size.
4792
4793 cat > $TMPC << EOF
4794 #include <stdint.h>
4795 int main(void)
4796 {
4797   uint64_t x = 0, y = 0;
4798 #ifdef __ATOMIC_RELAXED
4799   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4800   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4801   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4802   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4803   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4804 #else
4805   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4806   __sync_lock_test_and_set(&x, y);
4807   __sync_val_compare_and_swap(&x, y, 0);
4808   __sync_fetch_and_add(&x, y);
4809 #endif
4810   return 0;
4811 }
4812 EOF
4813 if compile_prog "" "" ; then
4814   atomic64=yes
4815 fi
4816
4817 #########################################
4818 # See if --dynamic-list is supported by the linker
4819 ld_dynamic_list="no"
4820 if test "$static" = "no" ; then
4821     cat > $TMPTXT <<EOF
4822 {
4823   foo;
4824 };
4825 EOF
4826
4827     cat > $TMPC <<EOF
4828 #include <stdio.h>
4829 void foo(void);
4830
4831 void foo(void)
4832 {
4833   printf("foo\n");
4834 }
4835
4836 int main(void)
4837 {
4838   foo();
4839   return 0;
4840 }
4841 EOF
4842
4843     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4844         ld_dynamic_list="yes"
4845     fi
4846 fi
4847
4848 #########################################
4849 # See if -exported_symbols_list is supported by the linker
4850
4851 ld_exported_symbols_list="no"
4852 if test "$static" = "no" ; then
4853     cat > $TMPTXT <<EOF
4854   _foo
4855 EOF
4856
4857     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4858         ld_exported_symbols_list="yes"
4859     fi
4860 fi
4861
4862 if  test "$plugins" = "yes" &&
4863     test "$ld_dynamic_list" = "no" &&
4864     test "$ld_exported_symbols_list" = "no" ; then
4865   error_exit \
4866       "Plugin support requires dynamic linking and specifying a set of symbols " \
4867       "that are exported to plugins. Unfortunately your linker doesn't " \
4868       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4869       "for this purpose. You can't build with --static."
4870 fi
4871
4872 ########################################
4873 # See if __attribute__((alias)) is supported.
4874 # This false for Xcode 9, but has been remedied for Xcode 10.
4875 # Unfortunately, travis uses Xcode 9 by default.
4876
4877 attralias=no
4878 cat > $TMPC << EOF
4879 int x = 1;
4880 extern const int y __attribute__((alias("x")));
4881 int main(void) { return 0; }
4882 EOF
4883 if compile_prog "" "" ; then
4884     attralias=yes
4885 fi
4886
4887 ########################################
4888 # check if getauxval is available.
4889
4890 getauxval=no
4891 cat > $TMPC << EOF
4892 #include <sys/auxv.h>
4893 int main(void) {
4894   return getauxval(AT_HWCAP) == 0;
4895 }
4896 EOF
4897 if compile_prog "" "" ; then
4898     getauxval=yes
4899 fi
4900
4901 ########################################
4902 # check if ccache is interfering with
4903 # semantic analysis of macros
4904
4905 unset CCACHE_CPP2
4906 ccache_cpp2=no
4907 cat > $TMPC << EOF
4908 static const int Z = 1;
4909 #define fn() ({ Z; })
4910 #define TAUT(X) ((X) == Z)
4911 #define PAREN(X, Y) (X == Y)
4912 #define ID(X) (X)
4913 int main(int argc, char *argv[])
4914 {
4915     int x = 0, y = 0;
4916     x = ID(x);
4917     x = fn();
4918     fn();
4919     if (PAREN(x, y)) return 0;
4920     if (TAUT(Z)) return 0;
4921     return 0;
4922 }
4923 EOF
4924
4925 if ! compile_object "-Werror"; then
4926     ccache_cpp2=yes
4927 fi
4928
4929 #################################################
4930 # clang does not support glibc + FORTIFY_SOURCE.
4931
4932 if test "$fortify_source" != "no"; then
4933   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4934     fortify_source="no";
4935   elif test -n "$cxx" && has $cxx &&
4936        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4937     fortify_source="no";
4938   else
4939     fortify_source="yes"
4940   fi
4941 fi
4942
4943 ###############################################
4944 # Check if copy_file_range is provided by glibc
4945 have_copy_file_range=no
4946 cat > $TMPC << EOF
4947 #include <unistd.h>
4948 int main(void) {
4949   copy_file_range(0, NULL, 0, NULL, 0, 0);
4950   return 0;
4951 }
4952 EOF
4953 if compile_prog "" "" ; then
4954     have_copy_file_range=yes
4955 fi
4956
4957 ##########################################
4958 # check if struct fsxattr is available via linux/fs.h
4959
4960 have_fsxattr=no
4961 cat > $TMPC << EOF
4962 #include <linux/fs.h>
4963 struct fsxattr foo;
4964 int main(void) {
4965   return 0;
4966 }
4967 EOF
4968 if compile_prog "" "" ; then
4969     have_fsxattr=yes
4970 fi
4971
4972 ##########################################
4973 # check for usable membarrier system call
4974 if test "$membarrier" = "yes"; then
4975     have_membarrier=no
4976     if test "$mingw32" = "yes" ; then
4977         have_membarrier=yes
4978     elif test "$linux" = "yes" ; then
4979         cat > $TMPC << EOF
4980     #include <linux/membarrier.h>
4981     #include <sys/syscall.h>
4982     #include <unistd.h>
4983     #include <stdlib.h>
4984     int main(void) {
4985         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4986         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4987         exit(0);
4988     }
4989 EOF
4990         if compile_prog "" "" ; then
4991             have_membarrier=yes
4992         fi
4993     fi
4994     if test "$have_membarrier" = "no"; then
4995       feature_not_found "membarrier" "membarrier system call not available"
4996     fi
4997 else
4998     # Do not enable it by default even for Mingw32, because it doesn't
4999     # work on Wine.
5000     membarrier=no
5001 fi
5002
5003 ##########################################
5004 # check if rtnetlink.h exists and is useful
5005 have_rtnetlink=no
5006 cat > $TMPC << EOF
5007 #include <linux/rtnetlink.h>
5008 int main(void) {
5009   return IFLA_PROTO_DOWN;
5010 }
5011 EOF
5012 if compile_prog "" "" ; then
5013     have_rtnetlink=yes
5014 fi
5015
5016 ##########################################
5017 # check for usable AF_VSOCK environment
5018 have_af_vsock=no
5019 cat > $TMPC << EOF
5020 #include <errno.h>
5021 #include <sys/types.h>
5022 #include <sys/socket.h>
5023 #if !defined(AF_VSOCK)
5024 # error missing AF_VSOCK flag
5025 #endif
5026 #include <linux/vm_sockets.h>
5027 int main(void) {
5028     int sock, ret;
5029     struct sockaddr_vm svm;
5030     socklen_t len = sizeof(svm);
5031     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5032     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5033     if ((ret == -1) && (errno == ENOTCONN)) {
5034         return 0;
5035     }
5036     return -1;
5037 }
5038 EOF
5039 if compile_prog "" "" ; then
5040     have_af_vsock=yes
5041 fi
5042
5043 ##########################################
5044 # check for usable AF_ALG environment
5045 have_afalg=no
5046 cat > $TMPC << EOF
5047 #include <errno.h>
5048 #include <sys/types.h>
5049 #include <sys/socket.h>
5050 #include <linux/if_alg.h>
5051 int main(void) {
5052     int sock;
5053     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5054     return sock;
5055 }
5056 EOF
5057 if compile_prog "" "" ; then
5058     have_afalg=yes
5059 fi
5060 if test "$crypto_afalg" = "yes"
5061 then
5062     if test "$have_afalg" != "yes"
5063     then
5064         error_exit "AF_ALG requested but could not be detected"
5065     fi
5066 fi
5067
5068
5069 #################################################
5070 # check for sysmacros.h
5071
5072 have_sysmacros=no
5073 cat > $TMPC << EOF
5074 #include <sys/sysmacros.h>
5075 int main(void) {
5076     return makedev(0, 0);
5077 }
5078 EOF
5079 if compile_prog "" "" ; then
5080     have_sysmacros=yes
5081 fi
5082
5083 ##########################################
5084 # check for _Static_assert()
5085
5086 have_static_assert=no
5087 cat > $TMPC << EOF
5088 _Static_assert(1, "success");
5089 int main(void) {
5090     return 0;
5091 }
5092 EOF
5093 if compile_prog "" "" ; then
5094     have_static_assert=yes
5095 fi
5096
5097 ##########################################
5098 # check for utmpx.h, it is missing e.g. on OpenBSD
5099
5100 have_utmpx=no
5101 cat > $TMPC << EOF
5102 #include <utmpx.h>
5103 struct utmpx user_info;
5104 int main(void) {
5105     return 0;
5106 }
5107 EOF
5108 if compile_prog "" "" ; then
5109     have_utmpx=yes
5110 fi
5111
5112 ##########################################
5113 # check for getrandom()
5114
5115 have_getrandom=no
5116 cat > $TMPC << EOF
5117 #include <sys/random.h>
5118 int main(void) {
5119     return getrandom(0, 0, GRND_NONBLOCK);
5120 }
5121 EOF
5122 if compile_prog "" "" ; then
5123     have_getrandom=yes
5124 fi
5125
5126 ##########################################
5127 # checks for sanitizers
5128
5129 have_asan=no
5130 have_ubsan=no
5131 have_asan_iface_h=no
5132 have_asan_iface_fiber=no
5133
5134 if test "$sanitizers" = "yes" ; then
5135   write_c_skeleton
5136   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5137       have_asan=yes
5138   fi
5139
5140   # we could use a simple skeleton for flags checks, but this also
5141   # detect the static linking issue of ubsan, see also:
5142   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5143   cat > $TMPC << EOF
5144 #include <stdlib.h>
5145 int main(void) {
5146     void *tmp = malloc(10);
5147     if (tmp != NULL) {
5148         return *(int *)(tmp + 2);
5149     }
5150     return 1;
5151 }
5152 EOF
5153   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5154       have_ubsan=yes
5155   fi
5156
5157   if check_include "sanitizer/asan_interface.h" ; then
5158       have_asan_iface_h=yes
5159   fi
5160
5161   cat > $TMPC << EOF
5162 #include <sanitizer/asan_interface.h>
5163 int main(void) {
5164   __sanitizer_start_switch_fiber(0, 0, 0);
5165   return 0;
5166 }
5167 EOF
5168   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5169       have_asan_iface_fiber=yes
5170   fi
5171 fi
5172
5173 ##########################################
5174 # checks for fuzzer
5175 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5176   write_c_fuzzer_skeleton
5177   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5178     have_fuzzer=yes
5179   else
5180     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5181     exit 1
5182   fi
5183 fi
5184
5185 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5186 # keep it separate until that is not the case.
5187 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5188   error_exit "TSAN is not supported with other sanitiziers."
5189 fi
5190 have_tsan=no
5191 have_tsan_iface_fiber=no
5192 if test "$tsan" = "yes" ; then
5193   write_c_skeleton
5194   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5195       have_tsan=yes
5196   fi
5197   cat > $TMPC << EOF
5198 #include <sanitizer/tsan_interface.h>
5199 int main(void) {
5200   __tsan_create_fiber(0);
5201   return 0;
5202 }
5203 EOF
5204   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5205       have_tsan_iface_fiber=yes
5206   fi
5207 fi
5208
5209 ##########################################
5210 # check for libpmem
5211
5212 if test "$libpmem" != "no"; then
5213         if $pkg_config --exists "libpmem"; then
5214                 libpmem="yes"
5215                 libpmem_libs=$($pkg_config --libs libpmem)
5216                 libpmem_cflags=$($pkg_config --cflags libpmem)
5217         else
5218                 if test "$libpmem" = "yes" ; then
5219                         feature_not_found "libpmem" "Install nvml or pmdk"
5220                 fi
5221                 libpmem="no"
5222         fi
5223 fi
5224
5225 ##########################################
5226 # check for libdaxctl
5227
5228 if test "$libdaxctl" != "no"; then
5229         if $pkg_config --atleast-version=57 "libdaxctl"; then
5230                 libdaxctl="yes"
5231                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5232                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5233         else
5234                 if test "$libdaxctl" = "yes" ; then
5235                         feature_not_found "libdaxctl" "Install libdaxctl"
5236                 fi
5237                 libdaxctl="no"
5238         fi
5239 fi
5240
5241 ##########################################
5242 # check for slirp
5243
5244 case "$slirp" in
5245   auto | enabled | internal)
5246     # Simpler to always update submodule, even if not needed.
5247     if test "$git_submodules_action" != "ignore"; then
5248       git_submodules="${git_submodules} slirp"
5249     fi
5250     ;;
5251 esac
5252
5253 ##########################################
5254 # check for usable __NR_keyctl syscall
5255
5256 if test "$linux" = "yes" ; then
5257
5258     have_keyring=no
5259     cat > $TMPC << EOF
5260 #include <errno.h>
5261 #include <asm/unistd.h>
5262 #include <linux/keyctl.h>
5263 #include <unistd.h>
5264 int main(void) {
5265     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5266 }
5267 EOF
5268     if compile_prog "" "" ; then
5269         have_keyring=yes
5270     fi
5271 fi
5272 if test "$secret_keyring" != "no"
5273 then
5274     if test "$have_keyring" = "yes"
5275     then
5276         secret_keyring=yes
5277     else
5278         if test "$secret_keyring" = "yes"
5279         then
5280             error_exit "syscall __NR_keyctl requested, \
5281 but not implemented on your system"
5282         else
5283             secret_keyring=no
5284         fi
5285     fi
5286 fi
5287
5288 ##########################################
5289 # End of CC checks
5290 # After here, no more $cc or $ld runs
5291
5292 write_c_skeleton
5293
5294 if test "$gcov" = "yes" ; then
5295   :
5296 elif test "$fortify_source" = "yes" ; then
5297   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5298   debug=no
5299 fi
5300
5301 case "$ARCH" in
5302 alpha)
5303   # Ensure there's only a single GP
5304   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5305 ;;
5306 esac
5307
5308 if test "$gprof" = "yes" ; then
5309   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5310   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5311 fi
5312
5313 if test "$have_asan" = "yes"; then
5314   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5315   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5316   if test "$have_asan_iface_h" = "no" ; then
5317       echo "ASAN build enabled, but ASAN header missing." \
5318            "Without code annotation, the report may be inferior."
5319   elif test "$have_asan_iface_fiber" = "no" ; then
5320       echo "ASAN build enabled, but ASAN header is too old." \
5321            "Without code annotation, the report may be inferior."
5322   fi
5323 fi
5324 if test "$have_tsan" = "yes" ; then
5325   if test "$have_tsan_iface_fiber" = "yes" ; then
5326     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5327     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5328   else
5329     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5330   fi
5331 elif test "$tsan" = "yes" ; then
5332   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5333 fi
5334 if test "$have_ubsan" = "yes"; then
5335   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5336   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5337 fi
5338
5339 ##########################################
5340
5341 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5342 if test "$solaris" = "no" && test "$tsan" = "no"; then
5343     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5344         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5345     fi
5346 fi
5347
5348 # Use ASLR, no-SEH and DEP if available
5349 if test "$mingw32" = "yes" ; then
5350     flags="--no-seh --nxcompat"
5351
5352     # Disable ASLR for debug builds to allow debugging with gdb
5353     if test "$debug" = "no" ; then
5354         flags="--dynamicbase $flags"
5355     fi
5356
5357     for flag in $flags; do
5358         if ld_has $flag ; then
5359             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5360         fi
5361     done
5362 fi
5363
5364 # We can only support ivshmem if we have eventfd
5365 if [ "$eventfd" = "yes" ]; then
5366   ivshmem=yes
5367 fi
5368
5369 # Probe for guest agent support/options
5370
5371 if [ "$guest_agent" != "no" ]; then
5372   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5373       guest_agent=no
5374   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5375       guest_agent=yes
5376   elif [ "$guest_agent" != yes ]; then
5377       guest_agent=no
5378   else
5379       error_exit "Guest agent is not supported on this platform"
5380   fi
5381 fi
5382
5383 # Guest agent Windows MSI package
5384
5385 if test "$QEMU_GA_MANUFACTURER" = ""; then
5386   QEMU_GA_MANUFACTURER=QEMU
5387 fi
5388 if test "$QEMU_GA_DISTRO" = ""; then
5389   QEMU_GA_DISTRO=Linux
5390 fi
5391 if test "$QEMU_GA_VERSION" = ""; then
5392     QEMU_GA_VERSION=$(cat $source_path/VERSION)
5393 fi
5394
5395 QEMU_GA_MSI_MINGW_DLL_PATH="$($pkg_config --variable=prefix glib-2.0)/bin"
5396
5397 # Mac OS X ships with a broken assembler
5398 roms=
5399 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5400         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5401         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5402     # Different host OS linkers have different ideas about the name of the ELF
5403     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5404     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5405     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5406         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5407             ld_i386_emulation="$emu"
5408             roms="optionrom"
5409             break
5410         fi
5411     done
5412 fi
5413
5414 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5415 if test "$cpu" = "s390x" ; then
5416   write_c_skeleton
5417   if compile_prog "-march=z900" ""; then
5418     roms="$roms s390-ccw"
5419     # SLOF is required for building the s390-ccw firmware on s390x,
5420     # since it is using the libnet code from SLOF for network booting.
5421     if test "$git_submodules_action" != "ignore"; then
5422       git_submodules="${git_submodules} roms/SLOF"
5423     fi
5424   fi
5425 fi
5426
5427 # Check that the C++ compiler exists and works with the C compiler.
5428 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5429 if has $cxx; then
5430     cat > $TMPC <<EOF
5431 int c_function(void);
5432 int main(void) { return c_function(); }
5433 EOF
5434
5435     compile_object
5436
5437     cat > $TMPCXX <<EOF
5438 extern "C" {
5439    int c_function(void);
5440 }
5441 int c_function(void) { return 42; }
5442 EOF
5443
5444     update_cxxflags
5445
5446     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5447         # C++ compiler $cxx works ok with C compiler $cc
5448         :
5449     else
5450         echo "C++ compiler $cxx does not work with C compiler $cc"
5451         echo "Disabling C++ specific optional code"
5452         cxx=
5453     fi
5454 else
5455     echo "No C++ compiler available; disabling C++ specific optional code"
5456     cxx=
5457 fi
5458
5459 if !(GIT="$git" "$source_path/scripts/git-submodule.sh" "$git_submodules_action" "$git_submodules"); then
5460     exit 1
5461 fi
5462
5463 config_host_mak="config-host.mak"
5464
5465 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5466 echo >> $config_host_mak
5467
5468 echo all: >> $config_host_mak
5469 echo "GIT=$git" >> $config_host_mak
5470 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5471 echo "GIT_SUBMODULES_ACTION=$git_submodules_action" >> $config_host_mak
5472
5473 echo "ARCH=$ARCH" >> $config_host_mak
5474
5475 if test "$debug_tcg" = "yes" ; then
5476   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5477 fi
5478 if test "$strip_opt" = "yes" ; then
5479   echo "STRIP=${strip}" >> $config_host_mak
5480 fi
5481 if test "$bigendian" = "yes" ; then
5482   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5483 fi
5484 if test "$mingw32" = "yes" ; then
5485   echo "CONFIG_WIN32=y" >> $config_host_mak
5486   if test "$guest_agent_with_vss" = "yes" ; then
5487     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5488     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5489     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5490   fi
5491   if test "$guest_agent_ntddscsi" = "yes" ; then
5492     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5493   fi
5494   echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5495   echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5496   echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5497   echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5498 else
5499   echo "CONFIG_POSIX=y" >> $config_host_mak
5500 fi
5501
5502 if test "$linux" = "yes" ; then
5503   echo "CONFIG_LINUX=y" >> $config_host_mak
5504 fi
5505
5506 if test "$darwin" = "yes" ; then
5507   echo "CONFIG_DARWIN=y" >> $config_host_mak
5508 fi
5509
5510 if test "$solaris" = "yes" ; then
5511   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5512 fi
5513 if test "$haiku" = "yes" ; then
5514   echo "CONFIG_HAIKU=y" >> $config_host_mak
5515 fi
5516 if test "$static" = "yes" ; then
5517   echo "CONFIG_STATIC=y" >> $config_host_mak
5518 fi
5519 if test "$profiler" = "yes" ; then
5520   echo "CONFIG_PROFILER=y" >> $config_host_mak
5521 fi
5522 if test "$want_tools" = "yes" ; then
5523   echo "CONFIG_TOOLS=y" >> $config_host_mak
5524 fi
5525 if test "$guest_agent" = "yes" ; then
5526   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5527 fi
5528 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5529 if test "$vde" = "yes" ; then
5530   echo "CONFIG_VDE=y" >> $config_host_mak
5531   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5532 fi
5533 if test "$netmap" = "yes" ; then
5534   echo "CONFIG_NETMAP=y" >> $config_host_mak
5535 fi
5536 if test "$l2tpv3" = "yes" ; then
5537   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5538 fi
5539 if test "$gprof" = "yes" ; then
5540   echo "CONFIG_GPROF=y" >> $config_host_mak
5541 fi
5542 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5543 for drv in $audio_drv_list; do
5544     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5545     echo "$def=y" >> $config_host_mak
5546 done
5547 if test "$alsa" = "yes" ; then
5548     echo "CONFIG_ALSA=y" >> $config_host_mak
5549 fi
5550 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5551 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5552 if test "$libpulse" = "yes" ; then
5553     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5554 fi
5555 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5556 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5557 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5558 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5559 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5560 if test "$libjack" = "yes" ; then
5561     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5562 fi
5563 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5564 if test "$audio_win_int" = "yes" ; then
5565   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5566 fi
5567 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5568 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5569 if test "$xfs" = "yes" ; then
5570   echo "CONFIG_XFS=y" >> $config_host_mak
5571 fi
5572 qemu_version=$(head $source_path/VERSION)
5573 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5574 echo "SRC_PATH=$source_path" >> $config_host_mak
5575 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5576 if test "$modules" = "yes"; then
5577   # $shacmd can generate a hash started with digit, which the compiler doesn't
5578   # like as an symbol. So prefix it with an underscore
5579   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5580   echo "CONFIG_MODULES=y" >> $config_host_mak
5581 fi
5582 if test "$module_upgrades" = "yes"; then
5583   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5584 fi
5585 if test "$pipe2" = "yes" ; then
5586   echo "CONFIG_PIPE2=y" >> $config_host_mak
5587 fi
5588 if test "$accept4" = "yes" ; then
5589   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5590 fi
5591 if test "$splice" = "yes" ; then
5592   echo "CONFIG_SPLICE=y" >> $config_host_mak
5593 fi
5594 if test "$eventfd" = "yes" ; then
5595   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5596 fi
5597 if test "$memfd" = "yes" ; then
5598   echo "CONFIG_MEMFD=y" >> $config_host_mak
5599 fi
5600 if test "$have_usbfs" = "yes" ; then
5601   echo "CONFIG_USBFS=y" >> $config_host_mak
5602 fi
5603 if test "$fallocate" = "yes" ; then
5604   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5605 fi
5606 if test "$fallocate_punch_hole" = "yes" ; then
5607   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5608 fi
5609 if test "$fallocate_zero_range" = "yes" ; then
5610   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5611 fi
5612 if test "$posix_fallocate" = "yes" ; then
5613   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5614 fi
5615 if test "$sync_file_range" = "yes" ; then
5616   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5617 fi
5618 if test "$fiemap" = "yes" ; then
5619   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5620 fi
5621 if test "$dup3" = "yes" ; then
5622   echo "CONFIG_DUP3=y" >> $config_host_mak
5623 fi
5624 if test "$ppoll" = "yes" ; then
5625   echo "CONFIG_PPOLL=y" >> $config_host_mak
5626 fi
5627 if test "$prctl_pr_set_timerslack" = "yes" ; then
5628   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5629 fi
5630 if test "$epoll" = "yes" ; then
5631   echo "CONFIG_EPOLL=y" >> $config_host_mak
5632 fi
5633 if test "$epoll_create1" = "yes" ; then
5634   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5635 fi
5636 if test "$sendfile" = "yes" ; then
5637   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5638 fi
5639 if test "$timerfd" = "yes" ; then
5640   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5641 fi
5642 if test "$setns" = "yes" ; then
5643   echo "CONFIG_SETNS=y" >> $config_host_mak
5644 fi
5645 if test "$clock_adjtime" = "yes" ; then
5646   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5647 fi
5648 if test "$syncfs" = "yes" ; then
5649   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5650 fi
5651 if test "$inotify" = "yes" ; then
5652   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5653 fi
5654 if test "$inotify1" = "yes" ; then
5655   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5656 fi
5657 if test "$sem_timedwait" = "yes" ; then
5658   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5659 fi
5660 if test "$strchrnul" = "yes" ; then
5661   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5662 fi
5663 if test "$st_atim" = "yes" ; then
5664   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5665 fi
5666 if test "$byteswap_h" = "yes" ; then
5667   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5668 fi
5669 if test "$bswap_h" = "yes" ; then
5670   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5671 fi
5672 if test "$gio" = "yes" ; then
5673     echo "CONFIG_GIO=y" >> $config_host_mak
5674     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5675     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5676     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5677 fi
5678 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5679 if test "$gnutls" = "yes" ; then
5680   echo "CONFIG_GNUTLS=y" >> $config_host_mak
5681   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
5682   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
5683 fi
5684 if test "$gcrypt" = "yes" ; then
5685   echo "CONFIG_GCRYPT=y" >> $config_host_mak
5686   if test "$gcrypt_hmac" = "yes" ; then
5687     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
5688   fi
5689   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
5690   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
5691 fi
5692 if test "$nettle" = "yes" ; then
5693   echo "CONFIG_NETTLE=y" >> $config_host_mak
5694   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
5695   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
5696   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
5697 fi
5698 if test "$qemu_private_xts" = "yes" ; then
5699   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
5700 fi
5701 if test "$tasn1" = "yes" ; then
5702   echo "CONFIG_TASN1=y" >> $config_host_mak
5703 fi
5704 if test "$auth_pam" = "yes" ; then
5705     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
5706 fi
5707 if test "$have_broken_size_max" = "yes" ; then
5708     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5709 fi
5710 if test "$have_openpty" = "yes" ; then
5711     echo "HAVE_OPENPTY=y" >> $config_host_mak
5712 fi
5713
5714 # Work around a system header bug with some kernel/XFS header
5715 # versions where they both try to define 'struct fsxattr':
5716 # xfs headers will not try to redefine structs from linux headers
5717 # if this macro is set.
5718 if test "$have_fsxattr" = "yes" ; then
5719     echo "HAVE_FSXATTR=y" >> $config_host_mak
5720 fi
5721 if test "$have_copy_file_range" = "yes" ; then
5722     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5723 fi
5724 if test "$vte" = "yes" ; then
5725   echo "CONFIG_VTE=y" >> $config_host_mak
5726   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
5727   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
5728 fi
5729 if test "$virglrenderer" = "yes" ; then
5730   echo "CONFIG_VIRGL=y" >> $config_host_mak
5731   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
5732   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
5733 fi
5734 if test "$xen" = "enabled" ; then
5735   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5736   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5737   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5738   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5739 fi
5740 if test "$linux_aio" = "yes" ; then
5741   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5742 fi
5743 if test "$linux_io_uring" = "yes" ; then
5744   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
5745   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
5746   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
5747 fi
5748 if test "$vhost_scsi" = "yes" ; then
5749   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5750 fi
5751 if test "$vhost_net" = "yes" ; then
5752   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5753 fi
5754 if test "$vhost_net_user" = "yes" ; then
5755   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5756 fi
5757 if test "$vhost_net_vdpa" = "yes" ; then
5758   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5759 fi
5760 if test "$vhost_crypto" = "yes" ; then
5761   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5762 fi
5763 if test "$vhost_vsock" = "yes" ; then
5764   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5765   if test "$vhost_user" = "yes" ; then
5766     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5767   fi
5768 fi
5769 if test "$vhost_kernel" = "yes" ; then
5770   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5771 fi
5772 if test "$vhost_user" = "yes" ; then
5773   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5774 fi
5775 if test "$vhost_vdpa" = "yes" ; then
5776   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5777 fi
5778 if test "$vhost_user_fs" = "yes" ; then
5779   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5780 fi
5781 if test "$iovec" = "yes" ; then
5782   echo "CONFIG_IOVEC=y" >> $config_host_mak
5783 fi
5784 if test "$membarrier" = "yes" ; then
5785   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5786 fi
5787 if test "$signalfd" = "yes" ; then
5788   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5789 fi
5790 if test "$optreset" = "yes" ; then
5791   echo "HAVE_OPTRESET=y" >> $config_host_mak
5792 fi
5793 if test "$fdatasync" = "yes" ; then
5794   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5795 fi
5796 if test "$madvise" = "yes" ; then
5797   echo "CONFIG_MADVISE=y" >> $config_host_mak
5798 fi
5799 if test "$posix_madvise" = "yes" ; then
5800   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5801 fi
5802 if test "$posix_memalign" = "yes" ; then
5803   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5804 fi
5805 if test "$spice" = "yes" ; then
5806   echo "CONFIG_SPICE=y" >> $config_host_mak
5807   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
5808   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5809 fi
5810
5811 if test "$smartcard" = "yes" ; then
5812   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
5813   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
5814   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
5815 fi
5816
5817 if test "$libusb" = "yes" ; then
5818   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
5819   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
5820   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
5821 fi
5822
5823 if test "$usb_redir" = "yes" ; then
5824   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
5825   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
5826   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
5827 fi
5828
5829 if test "$opengl" = "yes" ; then
5830   echo "CONFIG_OPENGL=y" >> $config_host_mak
5831   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5832   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5833   if test "$opengl_dmabuf" = "yes" ; then
5834     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
5835   fi
5836 fi
5837
5838 if test "$gbm" = "yes" ; then
5839     echo "CONFIG_GBM=y" >> $config_host_mak
5840     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5841     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5842 fi
5843
5844
5845 if test "$avx2_opt" = "yes" ; then
5846   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5847 fi
5848
5849 if test "$avx512f_opt" = "yes" ; then
5850   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5851 fi
5852
5853 # XXX: suppress that
5854 if [ "$bsd" = "yes" ] ; then
5855   echo "CONFIG_BSD=y" >> $config_host_mak
5856 fi
5857
5858 if test "$qom_cast_debug" = "yes" ; then
5859   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5860 fi
5861
5862 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5863 if test "$coroutine_pool" = "yes" ; then
5864   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5865 else
5866   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5867 fi
5868
5869 if test "$debug_stack_usage" = "yes" ; then
5870   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5871 fi
5872
5873 if test "$crypto_afalg" = "yes" ; then
5874   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5875 fi
5876
5877 if test "$open_by_handle_at" = "yes" ; then
5878   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5879 fi
5880
5881 if test "$linux_magic_h" = "yes" ; then
5882   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5883 fi
5884
5885 if test "$valgrind_h" = "yes" ; then
5886   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5887 fi
5888
5889 if test "$have_asan_iface_fiber" = "yes" ; then
5890     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5891 fi
5892
5893 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5894     echo "CONFIG_TSAN=y" >> $config_host_mak
5895 fi
5896
5897 if test "$has_environ" = "yes" ; then
5898   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5899 fi
5900
5901 if test "$cpuid_h" = "yes" ; then
5902   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5903 fi
5904
5905 if test "$int128" = "yes" ; then
5906   echo "CONFIG_INT128=y" >> $config_host_mak
5907 fi
5908
5909 if test "$atomic128" = "yes" ; then
5910   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5911 fi
5912
5913 if test "$cmpxchg128" = "yes" ; then
5914   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5915 fi
5916
5917 if test "$atomic64" = "yes" ; then
5918   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5919 fi
5920
5921 if test "$attralias" = "yes" ; then
5922   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
5923 fi
5924
5925 if test "$getauxval" = "yes" ; then
5926   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5927 fi
5928
5929 if test "$libssh" = "yes" ; then
5930   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5931   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5932   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5933 fi
5934
5935 if test "$live_block_migration" = "yes" ; then
5936   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5937 fi
5938
5939 if test "$tpm" = "yes"; then
5940   echo 'CONFIG_TPM=y' >> $config_host_mak
5941 fi
5942
5943 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5944 if have_backend "nop"; then
5945   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
5946 fi
5947 if have_backend "simple"; then
5948   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
5949   # Set the appropriate trace file.
5950   trace_file="\"$trace_file-\" FMT_pid"
5951 fi
5952 if have_backend "log"; then
5953   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
5954 fi
5955 if have_backend "ust"; then
5956   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
5957   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
5958   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
5959 fi
5960 if have_backend "dtrace"; then
5961   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
5962   if test "$trace_backend_stap" = "yes" ; then
5963     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
5964   fi
5965 fi
5966 if have_backend "ftrace"; then
5967   if test "$linux" = "yes" ; then
5968     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
5969   else
5970     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
5971   fi
5972 fi
5973 if have_backend "syslog"; then
5974   if test "$posix_syslog" = "yes" ; then
5975     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
5976   else
5977     feature_not_found "syslog(trace backend)" "syslog not available"
5978   fi
5979 fi
5980 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
5981
5982 if test "$rdma" = "yes" ; then
5983   echo "CONFIG_RDMA=y" >> $config_host_mak
5984   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
5985 fi
5986
5987 if test "$pvrdma" = "yes" ; then
5988   echo "CONFIG_PVRDMA=y" >> $config_host_mak
5989 fi
5990
5991 if test "$have_rtnetlink" = "yes" ; then
5992   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
5993 fi
5994
5995 if test "$libxml2" = "yes" ; then
5996   echo "CONFIG_LIBXML2=y" >> $config_host_mak
5997   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
5998   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
5999 fi
6000
6001 if test "$replication" = "yes" ; then
6002   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6003 fi
6004
6005 if test "$have_af_vsock" = "yes" ; then
6006   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6007 fi
6008
6009 if test "$have_sysmacros" = "yes" ; then
6010   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6011 fi
6012
6013 if test "$have_static_assert" = "yes" ; then
6014   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6015 fi
6016
6017 if test "$have_utmpx" = "yes" ; then
6018   echo "HAVE_UTMPX=y" >> $config_host_mak
6019 fi
6020 if test "$have_getrandom" = "yes" ; then
6021   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6022 fi
6023 if test "$ivshmem" = "yes" ; then
6024   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6025 fi
6026 if test "$debug_mutex" = "yes" ; then
6027   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6028 fi
6029
6030 # Hold two types of flag:
6031 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6032 #                                     a thread we have a handle to
6033 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6034 #                                     platform
6035 if test "$pthread_setname_np_w_tid" = "yes" ; then
6036   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6037   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6038 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6039   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6040   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6041 fi
6042
6043 if test "$libpmem" = "yes" ; then
6044   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6045   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6046   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6047 fi
6048
6049 if test "$libdaxctl" = "yes" ; then
6050   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6051   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6052 fi
6053
6054 if test "$bochs" = "yes" ; then
6055   echo "CONFIG_BOCHS=y" >> $config_host_mak
6056 fi
6057 if test "$cloop" = "yes" ; then
6058   echo "CONFIG_CLOOP=y" >> $config_host_mak
6059 fi
6060 if test "$dmg" = "yes" ; then
6061   echo "CONFIG_DMG=y" >> $config_host_mak
6062 fi
6063 if test "$qcow1" = "yes" ; then
6064   echo "CONFIG_QCOW1=y" >> $config_host_mak
6065 fi
6066 if test "$vdi" = "yes" ; then
6067   echo "CONFIG_VDI=y" >> $config_host_mak
6068 fi
6069 if test "$vvfat" = "yes" ; then
6070   echo "CONFIG_VVFAT=y" >> $config_host_mak
6071 fi
6072 if test "$qed" = "yes" ; then
6073   echo "CONFIG_QED=y" >> $config_host_mak
6074 fi
6075 if test "$parallels" = "yes" ; then
6076   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6077 fi
6078 if test "$sheepdog" = "yes" ; then
6079   add_to deprecated_features "sheepdog"
6080   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6081 fi
6082 if test "$have_mlockall" = "yes" ; then
6083   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6084 fi
6085 if test "$fuzzing" = "yes" ; then
6086   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6087   # needed CFLAGS have already been provided
6088   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6089     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6090     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6091   else
6092     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6093   fi
6094 fi
6095
6096 if test "$plugins" = "yes" ; then
6097     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6098     # Copy the export object list to the build dir
6099     if test "$ld_dynamic_list" = "yes" ; then
6100         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6101         ld_symbols=qemu-plugins-ld.symbols
6102         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6103     elif test "$ld_exported_symbols_list" = "yes" ; then
6104         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6105         ld64_symbols=qemu-plugins-ld64.symbols
6106         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6107         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6108             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6109     else
6110         error_exit \
6111             "If \$plugins=yes, either \$ld_dynamic_list or " \
6112             "\$ld_exported_symbols_list should have been set to 'yes'."
6113     fi
6114 fi
6115
6116 if test -n "$gdb_bin"; then
6117     gdb_version=$($gdb_bin --version | head -n 1)
6118     if version_ge ${gdb_version##* } 8.3.1; then
6119         echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6120     fi
6121 fi
6122
6123 if test "$secret_keyring" = "yes" ; then
6124   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6125 fi
6126
6127 echo "ROMS=$roms" >> $config_host_mak
6128 echo "MAKE=$make" >> $config_host_mak
6129 echo "PYTHON=$python" >> $config_host_mak
6130 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6131 echo "MESON=$meson" >> $config_host_mak
6132 echo "NINJA=$ninja" >> $config_host_mak
6133 echo "CC=$cc" >> $config_host_mak
6134 if $iasl -h > /dev/null 2>&1; then
6135   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6136 fi
6137 echo "CXX=$cxx" >> $config_host_mak
6138 echo "OBJCC=$objcc" >> $config_host_mak
6139 echo "AR=$ar" >> $config_host_mak
6140 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6141 echo "AS=$as" >> $config_host_mak
6142 echo "CCAS=$ccas" >> $config_host_mak
6143 echo "CPP=$cpp" >> $config_host_mak
6144 echo "OBJCOPY=$objcopy" >> $config_host_mak
6145 echo "LD=$ld" >> $config_host_mak
6146 echo "RANLIB=$ranlib" >> $config_host_mak
6147 echo "NM=$nm" >> $config_host_mak
6148 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6149 echo "WINDRES=$windres" >> $config_host_mak
6150 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6151 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6152 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6153 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6154 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6155 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6156 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6157 echo "EXESUF=$EXESUF" >> $config_host_mak
6158 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6159 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6160 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6161 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6162 if test "$gcov" = "yes" ; then
6163   echo "CONFIG_GCOV=y" >> $config_host_mak
6164 fi
6165
6166 if test "$fuzzing" != "no"; then
6167     echo "CONFIG_FUZZ=y" >> $config_host_mak
6168 fi
6169 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6170
6171 if test "$rng_none" = "yes"; then
6172   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6173 fi
6174
6175 # use included Linux headers
6176 if test "$linux" = "yes" ; then
6177   mkdir -p linux-headers
6178   case "$cpu" in
6179   i386|x86_64|x32)
6180     linux_arch=x86
6181     ;;
6182   ppc|ppc64|ppc64le)
6183     linux_arch=powerpc
6184     ;;
6185   s390x)
6186     linux_arch=s390
6187     ;;
6188   aarch64)
6189     linux_arch=arm64
6190     ;;
6191   mips64)
6192     linux_arch=mips
6193     ;;
6194   *)
6195     # For most CPUs the kernel architecture name and QEMU CPU name match.
6196     linux_arch="$cpu"
6197     ;;
6198   esac
6199     # For non-KVM architectures we will not have asm headers
6200     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6201       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6202     fi
6203 fi
6204
6205 for target in $target_list; do
6206     target_dir="$target"
6207     target_name=$(echo $target | cut -d '-' -f 1)
6208     mkdir -p $target_dir
6209     case $target in
6210         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6211         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6212     esac
6213 done
6214
6215 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6216 if test "$default_targets" = "yes"; then
6217   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6218 fi
6219
6220 if test "$numa" = "yes"; then
6221   echo "CONFIG_NUMA=y" >> $config_host_mak
6222   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6223 fi
6224
6225 if test "$ccache_cpp2" = "yes"; then
6226   echo "export CCACHE_CPP2=y" >> $config_host_mak
6227 fi
6228
6229 if test "$safe_stack" = "yes"; then
6230   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6231 fi
6232
6233 # If we're using a separate build tree, set it up now.
6234 # DIRS are directories which we simply mkdir in the build tree;
6235 # LINKS are things to symlink back into the source tree
6236 # (these can be both files and directories).
6237 # Caution: do not add files or directories here using wildcards. This
6238 # will result in problems later if a new file matching the wildcard is
6239 # added to the source tree -- nothing will cause configure to be rerun
6240 # so the build tree will be missing the link back to the new file, and
6241 # tests might fail. Prefer to keep the relevant files in their own
6242 # directory and symlink the directory instead.
6243 # UNLINK is used to remove symlinks from older development versions
6244 # that might get into the way when doing "git update" without doing
6245 # a "make distclean" in between.
6246 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6247 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6248 DIRS="$DIRS docs docs/interop fsdev scsi"
6249 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6250 DIRS="$DIRS roms/seabios"
6251 DIRS="$DIRS contrib/plugins/"
6252 LINKS="Makefile"
6253 LINKS="$LINKS tests/tcg/lm32/Makefile"
6254 LINKS="$LINKS tests/tcg/Makefile.target"
6255 LINKS="$LINKS pc-bios/optionrom/Makefile"
6256 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6257 LINKS="$LINKS roms/seabios/Makefile"
6258 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6259 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6260 LINKS="$LINKS tests/acceptance tests/data"
6261 LINKS="$LINKS tests/qemu-iotests/check"
6262 LINKS="$LINKS python"
6263 LINKS="$LINKS contrib/plugins/Makefile "
6264 UNLINK="pc-bios/keymaps"
6265 for bios_file in \
6266     $source_path/pc-bios/*.bin \
6267     $source_path/pc-bios/*.elf \
6268     $source_path/pc-bios/*.lid \
6269     $source_path/pc-bios/*.rom \
6270     $source_path/pc-bios/*.dtb \
6271     $source_path/pc-bios/*.img \
6272     $source_path/pc-bios/openbios-* \
6273     $source_path/pc-bios/u-boot.* \
6274     $source_path/pc-bios/edk2-*.fd.bz2 \
6275     $source_path/pc-bios/palcode-*
6276 do
6277     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6278 done
6279 mkdir -p $DIRS
6280 for f in $LINKS ; do
6281     if [ -e "$source_path/$f" ]; then
6282         symlink "$source_path/$f" "$f"
6283     fi
6284 done
6285 for f in $UNLINK ; do
6286     if [ -L "$f" ]; then
6287         rm -f "$f"
6288     fi
6289 done
6290
6291 (for i in $cross_cc_vars; do
6292   export $i
6293 done
6294 export target_list source_path use_containers
6295 $source_path/tests/tcg/configure.sh)
6296
6297 # temporary config to build submodules
6298 for rom in seabios; do
6299     config_mak=roms/$rom/config.mak
6300     echo "# Automatically generated by configure - do not modify" > $config_mak
6301     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6302     echo "AS=$as" >> $config_mak
6303     echo "CCAS=$ccas" >> $config_mak
6304     echo "CC=$cc" >> $config_mak
6305     echo "BCC=bcc" >> $config_mak
6306     echo "CPP=$cpp" >> $config_mak
6307     echo "OBJCOPY=objcopy" >> $config_mak
6308     echo "IASL=$iasl" >> $config_mak
6309     echo "LD=$ld" >> $config_mak
6310     echo "RANLIB=$ranlib" >> $config_mak
6311 done
6312
6313 if test "$skip_meson" = no; then
6314 cross="config-meson.cross.new"
6315 meson_quote() {
6316     echo "'$(echo $* | sed "s/ /','/g")'"
6317 }
6318
6319 echo "# Automatically generated by configure - do not modify" > $cross
6320 echo "[properties]" >> $cross
6321 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6322 echo "[built-in options]" >> $cross
6323 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6324 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6325 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6326 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6327 echo "[binaries]" >> $cross
6328 echo "c = [$(meson_quote $cc)]" >> $cross
6329 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6330 test -n "$objcc" && echo "objc = [$(meson_quote $objcc)]" >> $cross
6331 echo "ar = [$(meson_quote $ar)]" >> $cross
6332 echo "nm = [$(meson_quote $nm)]" >> $cross
6333 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6334 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6335 if has $sdl2_config; then
6336   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6337 fi
6338 echo "strip = [$(meson_quote $strip)]" >> $cross
6339 echo "windres = [$(meson_quote $windres)]" >> $cross
6340 if test "$cross_compile" = "yes"; then
6341     cross_arg="--cross-file config-meson.cross"
6342     echo "[host_machine]" >> $cross
6343     if test "$mingw32" = "yes" ; then
6344         echo "system = 'windows'" >> $cross
6345     fi
6346     if test "$linux" = "yes" ; then
6347         echo "system = 'linux'" >> $cross
6348     fi
6349     if test "$darwin" = "yes" ; then
6350         echo "system = 'darwin'" >> $cross
6351     fi
6352     case "$ARCH" in
6353         i386)
6354             echo "cpu_family = 'x86'" >> $cross
6355             ;;
6356         x86_64)
6357             echo "cpu_family = 'x86_64'" >> $cross
6358             ;;
6359         ppc64le)
6360             echo "cpu_family = 'ppc64'" >> $cross
6361             ;;
6362         *)
6363             echo "cpu_family = '$ARCH'" >> $cross
6364             ;;
6365     esac
6366     echo "cpu = '$cpu'" >> $cross
6367     if test "$bigendian" = "yes" ; then
6368         echo "endian = 'big'" >> $cross
6369     else
6370         echo "endian = 'little'" >> $cross
6371     fi
6372 else
6373     cross_arg="--native-file config-meson.cross"
6374 fi
6375 mv $cross config-meson.cross
6376
6377 rm -rf meson-private meson-info meson-logs
6378 unset staticpic
6379 if ! version_ge "$($meson --version)" 0.56.0; then
6380   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6381 fi
6382 NINJA=$ninja $meson setup \
6383         --prefix "$prefix" \
6384         --libdir "$libdir" \
6385         --libexecdir "$libexecdir" \
6386         --bindir "$bindir" \
6387         --includedir "$includedir" \
6388         --datadir "$datadir" \
6389         --mandir "$mandir" \
6390         --sysconfdir "$sysconfdir" \
6391         --localedir "$localedir" \
6392         --localstatedir "$local_statedir" \
6393         -Ddocdir="$docdir" \
6394         -Dqemu_firmwarepath="$firmwarepath" \
6395         -Dqemu_suffix="$qemu_suffix" \
6396         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6397         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6398         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6399         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6400         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6401         ${staticpic:+-Db_staticpic=$staticpic} \
6402         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6403         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6404         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6405         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6406         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6407         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6408         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6409         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6410         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6411         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6412         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6413         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse \
6414         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6415         -Dattr=$attr -Ddefault_devices=$default_devices \
6416         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6417         -Dvhost_user_blk_server=$vhost_user_blk_server \
6418         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek -Dguest_agent_msi=$guest_agent_msi \
6419         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6420         -Dtcg_interpreter=$tcg_interpreter \
6421         $cross_arg \
6422         "$PWD" "$source_path"
6423
6424 if test "$?" -ne 0 ; then
6425     error_exit "meson setup failed"
6426 fi
6427 fi
6428
6429 if test -n "${deprecated_features}"; then
6430     echo "Warning, deprecated features enabled."
6431     echo "Please see docs/system/deprecated.rst"
6432     echo "  features: ${deprecated_features}"
6433 fi
6434
6435 # Save the configure command line for later reuse.
6436 cat <<EOD >config.status
6437 #!/bin/sh
6438 # Generated by configure.
6439 # Run this file to recreate the current configuration.
6440 # Compiler output produced by configure, useful for debugging
6441 # configure, is in config.log if it exists.
6442 EOD
6443
6444 preserve_env() {
6445     envname=$1
6446
6447     eval envval=\$$envname
6448
6449     if test -n "$envval"
6450     then
6451         echo "$envname='$envval'" >> config.status
6452         echo "export $envname" >> config.status
6453     else
6454         echo "unset $envname" >> config.status
6455     fi
6456 }
6457
6458 # Preserve various env variables that influence what
6459 # features/build target configure will detect
6460 preserve_env AR
6461 preserve_env AS
6462 preserve_env CC
6463 preserve_env CPP
6464 preserve_env CXX
6465 preserve_env INSTALL
6466 preserve_env LD
6467 preserve_env LD_LIBRARY_PATH
6468 preserve_env LIBTOOL
6469 preserve_env MAKE
6470 preserve_env NM
6471 preserve_env OBJCOPY
6472 preserve_env PATH
6473 preserve_env PKG_CONFIG
6474 preserve_env PKG_CONFIG_LIBDIR
6475 preserve_env PKG_CONFIG_PATH
6476 preserve_env PYTHON
6477 preserve_env SDL2_CONFIG
6478 preserve_env SMBD
6479 preserve_env STRIP
6480 preserve_env WINDRES
6481
6482 printf "exec" >>config.status
6483 for i in "$0" "$@"; do
6484   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6485 done
6486 echo ' "$@"' >>config.status
6487 chmod +x config.status
6488
6489 rm -r "$TMPDIR1"