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" "$PWD" | grep -q "[[:space:]:]";
 232 then
 233   error_exit "main directory cannot contain spaces nor colons"
 234 fi
 235
 236 # default parameters
 237 cpu=""
 238 iasl="iasl"
 239 interp_prefix="/usr/gnemul/qemu-%M"
 240 static="no"
 241 cross_prefix=""
 242 audio_drv_list=""
 243 block_drv_rw_whitelist=""
 244 block_drv_ro_whitelist=""
 245 host_cc="cc"
 246 audio_win_int=""
 247 libs_qga=""
 248 debug_info="yes"
 249 lto="false"
 250 stack_protector=""
 251 safe_stack=""
 252 use_containers="yes"
 253 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 254
 255 if test -e "$source_path/.git"
 256 then
 257     git_update=yes
 258     git_submodules="ui/keycodemapdb"
 259     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 260     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 261 else
 262     git_update=no
 263     git_submodules=""
 264
 265     if ! test -f "$source_path/ui/keycodemapdb/README"
 266     then
 267         echo
 268         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 269         echo
 270         echo "This is not a GIT checkout but module content appears to"
 271         echo "be missing. Do not use 'git archive' or GitHub download links"
 272         echo "to acquire QEMU source archives. Non-GIT builds are only"
 273         echo "supported with source archives linked from:"
 274         echo
 275         echo "  https://www.qemu.org/download/#source"
 276         echo
 277         echo "Developers working with GIT can use scripts/archive-source.sh"
 278         echo "if they need to create valid source archives."
 279         echo
 280         exit 1
 281     fi
 282 fi
 283 git="git"
 284
 285 # Don't accept a target_list environment variable.
 286 unset target_list
 287 unset target_list_exclude
 288
 289 # Default value for a variable defining feature "foo".
 290 #  * foo="no"  feature will only be used if --enable-foo arg is given
 291 #  * foo=""    feature will be searched for, and if found, will be used
 292 #              unless --disable-foo is given
 293 #  * foo="yes" this value will only be set by --enable-foo flag.
 294 #              feature will searched for,
 295 #              if not found, configure exits with error
 296 #
 297 # Always add --enable-foo and --disable-foo command line args.
 298 # Distributions want to ensure that several features are compiled in, and it
 299 # is impossible without a --enable-foo that exits if a feature is not found.
 300
 301 default_feature=""
 302 # parse CC options second
 303 for opt do
 304   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 305   case "$opt" in
 306       --without-default-features)
 307           default_feature="no"
 308   ;;
 309   esac
 310 done
 311
 312 brlapi="auto"
 313 curl="auto"
 314 iconv="auto"
 315 curses="auto"
 316 docs="auto"
 317 fdt="auto"
 318 netmap="no"
 319 sdl="auto"
 320 sdl_image="auto"
 321 virtiofsd="auto"
 322 virtfs="auto"
 323 libudev="auto"
 324 mpath="auto"
 325 vnc="enabled"
 326 sparse="auto"
 327 vde="$default_feature"
 328 vnc_sasl="auto"
 329 vnc_jpeg="auto"
 330 vnc_png="auto"
 331 xkbcommon="auto"
 332 xen="$default_feature"
 333 xen_ctrl_version="$default_feature"
 334 xen_pci_passthrough="auto"
 335 linux_aio="$default_feature"
 336 linux_io_uring="$default_feature"
 337 cap_ng="auto"
 338 attr="auto"
 339 xfs="$default_feature"
 340 tcg="enabled"
 341 membarrier="$default_feature"
 342 vhost_net="$default_feature"
 343 vhost_crypto="$default_feature"
 344 vhost_scsi="$default_feature"
 345 vhost_vsock="$default_feature"
 346 vhost_user="no"
 347 vhost_user_blk_server="auto"
 348 vhost_user_fs="$default_feature"
 349 kvm="auto"
 350 hax="auto"
 351 hvf="auto"
 352 whpx="auto"
 353 rdma="$default_feature"
 354 pvrdma="$default_feature"
 355 gprof="no"
 356 debug_tcg="no"
 357 debug="no"
 358 sanitizers="no"
 359 tsan="no"
 360 fortify_source="$default_feature"
 361 strip_opt="yes"
 362 tcg_interpreter="no"
 363 bigendian="no"
 364 mingw32="no"
 365 gcov="no"
 366 EXESUF="$default_feature"
 367 HOST_DSOSUF=".so"
 368 modules="no"
 369 module_upgrades="no"
 370 prefix="/usr/local"
 371 qemu_suffix="qemu"
 372 slirp="auto"
 373 oss_lib=""
 374 bsd="no"
 375 linux="no"
 376 solaris="no"
 377 profiler="no"
 378 cocoa="auto"
 379 softmmu="yes"
 380 linux_user="no"
 381 bsd_user="no"
 382 blobs="true"
 383 pkgversion=""
 384 pie=""
 385 qom_cast_debug="yes"
 386 trace_backends="log"
 387 trace_file="trace"
 388 spice="$default_feature"
 389 rbd="auto"
 390 smartcard="$default_feature"
 391 u2f="auto"
 392 libusb="$default_feature"
 393 usb_redir="$default_feature"
 394 opengl="$default_feature"
 395 opengl_dmabuf="no"
 396 cpuid_h="no"
 397 avx2_opt="$default_feature"
 398 capstone="auto"
 399 lzo="auto"
 400 snappy="auto"
 401 bzip2="auto"
 402 lzfse="auto"
 403 zstd="auto"
 404 guest_agent="$default_feature"
 405 guest_agent_with_vss="no"
 406 guest_agent_ntddscsi="no"
 407 guest_agent_msi="$default_feature"
 408 vss_win32_sdk="$default_feature"
 409 win_sdk="no"
 410 want_tools="$default_feature"
 411 libiscsi="auto"
 412 libnfs="auto"
 413 coroutine=""
 414 coroutine_pool="$default_feature"
 415 debug_stack_usage="no"
 416 crypto_afalg="no"
 417 cfi="false"
 418 cfi_debug="false"
 419 seccomp="auto"
 420 glusterfs="auto"
 421 gtk="auto"
 422 tls_priority="NORMAL"
 423 gnutls="$default_feature"
 424 nettle="$default_feature"
 425 nettle_xts="no"
 426 gcrypt="$default_feature"
 427 gcrypt_hmac="no"
 428 gcrypt_xts="no"
 429 qemu_private_xts="yes"
 430 auth_pam="$default_feature"
 431 vte="$default_feature"
 432 virglrenderer="$default_feature"
 433 tpm="$default_feature"
 434 libssh="$default_feature"
 435 live_block_migration=${default_feature:-yes}
 436 numa="$default_feature"
 437 tcmalloc="no"
 438 jemalloc="no"
 439 replication=${default_feature:-yes}
 440 bochs=${default_feature:-yes}
 441 cloop=${default_feature:-yes}
 442 dmg=${default_feature:-yes}
 443 qcow1=${default_feature:-yes}
 444 vdi=${default_feature:-yes}
 445 vvfat=${default_feature:-yes}
 446 qed=${default_feature:-yes}
 447 parallels=${default_feature:-yes}
 448 sheepdog="no"
 449 libxml2="$default_feature"
 450 debug_mutex="no"
 451 libpmem="$default_feature"
 452 default_devices="true"
 453 plugins="no"
 454 fuzzing="no"
 455 rng_none="no"
 456 secret_keyring="$default_feature"
 457 libdaxctl="$default_feature"
 458 meson=""
 459 ninja=""
 460 skip_meson=no
 461 gettext="auto"
 462 fuse="auto"
 463 fuse_lseek="auto"
 464
 465 malloc_trim="auto"
 466
 467 # parse CC options second
 468 for opt do
 469   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 470   case "$opt" in
 471   --cross-prefix=*) cross_prefix="$optarg"
 472   ;;
 473   --cc=*) CC="$optarg"
 474   ;;
 475   --cxx=*) CXX="$optarg"
 476   ;;
 477   --cpu=*) cpu="$optarg"
 478   ;;
 479   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 480                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 481   ;;
 482   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 483   ;;
 484   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 485                      EXTRA_LDFLAGS="$optarg"
 486   ;;
 487   --enable-debug-info) debug_info="yes"
 488   ;;
 489   --disable-debug-info) debug_info="no"
 490   ;;
 491   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 492   ;;
 493   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 494                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 495                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 496   ;;
 497   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 498                 cc_archs="$cc_archs $cc_arch"
 499                 eval "cross_cc_${cc_arch}=\$optarg"
 500                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 501   ;;
 502   esac
 503 done
 504 # OS specific
 505 # Using uname is really, really broken.  Once we have the right set of checks
 506 # we can eliminate its usage altogether.
 507
 508 # Preferred compiler:
 509 #  ${CC} (if set)
 510 #  ${cross_prefix}gcc (if cross-prefix specified)
 511 #  system compiler
 512 if test -z "${CC}${cross_prefix}"; then
 513   cc="$host_cc"
 514 else
 515   cc="${CC-${cross_prefix}gcc}"
 516 fi
 517
 518 if test -z "${CXX}${cross_prefix}"; then
 519   cxx="c++"
 520 else
 521   cxx="${CXX-${cross_prefix}g++}"
 522 fi
 523
 524 ar="${AR-${cross_prefix}ar}"
 525 as="${AS-${cross_prefix}as}"
 526 ccas="${CCAS-$cc}"
 527 cpp="${CPP-$cc -E}"
 528 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 529 ld="${LD-${cross_prefix}ld}"
 530 ranlib="${RANLIB-${cross_prefix}ranlib}"
 531 nm="${NM-${cross_prefix}nm}"
 532 strip="${STRIP-${cross_prefix}strip}"
 533 windres="${WINDRES-${cross_prefix}windres}"
 534 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 535 query_pkg_config() {
 536     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 537 }
 538 pkg_config=query_pkg_config
 539 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 540
 541 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 542 ARFLAGS="${ARFLAGS-rv}"
 543
 544 # default flags for all hosts
 545 # We use -fwrapv to tell the compiler that we require a C dialect where
 546 # left shift of signed integers is well defined and has the expected
 547 # 2s-complement style results. (Both clang and gcc agree that it
 548 # provides these semantics.)
 549 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 550 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 551 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 552 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 553
 554 # Flags that are needed during configure but later taken care of by Meson
 555 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 556 CONFIGURE_LDFLAGS=
 557
 558
 559 check_define() {
 560 cat > $TMPC <<EOF
 561 #if !defined($1)
 562 #error $1 not defined
 563 #endif
 564 int main(void) { return 0; }
 565 EOF
 566   compile_object
 567 }
 568
 569 check_include() {
 570 cat > $TMPC <<EOF
 571 #include <$1>
 572 int main(void) { return 0; }
 573 EOF
 574   compile_object
 575 }
 576
 577 write_c_skeleton() {
 578     cat > $TMPC <<EOF
 579 int main(void) { return 0; }
 580 EOF
 581 }
 582
 583 write_c_fuzzer_skeleton() {
 584     cat > $TMPC <<EOF
 585 #include <stdint.h>
 586 #include <sys/types.h>
 587 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 588 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 589 EOF
 590 }
 591
 592 if check_define __linux__ ; then
 593   targetos="Linux"
 594 elif check_define _WIN32 ; then
 595   targetos='MINGW32'
 596 elif check_define __OpenBSD__ ; then
 597   targetos='OpenBSD'
 598 elif check_define __sun__ ; then
 599   targetos='SunOS'
 600 elif check_define __HAIKU__ ; then
 601   targetos='Haiku'
 602 elif check_define __FreeBSD__ ; then
 603   targetos='FreeBSD'
 604 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 605   targetos='GNU/kFreeBSD'
 606 elif check_define __DragonFly__ ; then
 607   targetos='DragonFly'
 608 elif check_define __NetBSD__; then
 609   targetos='NetBSD'
 610 elif check_define __APPLE__; then
 611   targetos='Darwin'
 612 else
 613   # This is a fatal error, but don't report it yet, because we
 614   # might be going to just print the --help text, or it might
 615   # be the result of a missing compiler.
 616   targetos='bogus'
 617 fi
 618
 619 # Some host OSes need non-standard checks for which CPU to use.
 620 # Note that these checks are broken for cross-compilation: if you're
 621 # cross-compiling to one of these OSes then you'll need to specify
 622 # the correct CPU with the --cpu option.
 623 case $targetos in
 624 Darwin)
 625   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 626   # run 64-bit userspace code.
 627   # If the user didn't specify a CPU explicitly and the kernel says this is
 628   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 629   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 630     cpu="x86_64"
 631   fi
 632   HOST_DSOSUF=".dylib"
 633   ;;
 634 SunOS)
 635   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 636   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 637     cpu="x86_64"
 638   fi
 639 esac
 640
 641 if test ! -z "$cpu" ; then
 642   # command line argument
 643   :
 644 elif check_define __i386__ ; then
 645   cpu="i386"
 646 elif check_define __x86_64__ ; then
 647   if check_define __ILP32__ ; then
 648     cpu="x32"
 649   else
 650     cpu="x86_64"
 651   fi
 652 elif check_define __sparc__ ; then
 653   if check_define __arch64__ ; then
 654     cpu="sparc64"
 655   else
 656     cpu="sparc"
 657   fi
 658 elif check_define _ARCH_PPC ; then
 659   if check_define _ARCH_PPC64 ; then
 660     if check_define _LITTLE_ENDIAN ; then
 661       cpu="ppc64le"
 662     else
 663       cpu="ppc64"
 664     fi
 665   else
 666     cpu="ppc"
 667   fi
 668 elif check_define __mips__ ; then
 669   cpu="mips"
 670 elif check_define __s390__ ; then
 671   if check_define __s390x__ ; then
 672     cpu="s390x"
 673   else
 674     cpu="s390"
 675   fi
 676 elif check_define __riscv ; then
 677   if check_define _LP64 ; then
 678     cpu="riscv64"
 679   else
 680     cpu="riscv32"
 681   fi
 682 elif check_define __arm__ ; then
 683   cpu="arm"
 684 elif check_define __aarch64__ ; then
 685   cpu="aarch64"
 686 else
 687   cpu=$(uname -m)
 688 fi
 689
 690 ARCH=
 691 # Normalise host CPU name and set ARCH.
 692 # Note that this case should only have supported host CPUs, not guests.
 693 case "$cpu" in
 694   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 695   ;;
 696   ppc64le)
 697     ARCH="ppc64"
 698   ;;
 699   i386|i486|i586|i686|i86pc|BePC)
 700     cpu="i386"
 701   ;;
 702   x86_64|amd64)
 703     cpu="x86_64"
 704   ;;
 705   armv*b|armv*l|arm)
 706     cpu="arm"
 707   ;;
 708   aarch64)
 709     cpu="aarch64"
 710   ;;
 711   mips*)
 712     cpu="mips"
 713   ;;
 714   sparc|sun4[cdmuv])
 715     cpu="sparc"
 716   ;;
 717   *)
 718     # This will result in either an error or falling back to TCI later
 719     ARCH=unknown
 720   ;;
 721 esac
 722 if test -z "$ARCH"; then
 723   ARCH="$cpu"
 724 fi
 725
 726 # OS specific
 727
 728 case $targetos in
 729 MINGW32*)
 730   mingw32="yes"
 731   audio_possible_drivers="dsound sdl"
 732   if check_include dsound.h; then
 733     audio_drv_list="dsound"
 734   else
 735     audio_drv_list=""
 736   fi
 737   supported_os="yes"
 738   pie="no"
 739 ;;
 740 GNU/kFreeBSD)
 741   bsd="yes"
 742   audio_drv_list="oss try-sdl"
 743   audio_possible_drivers="oss sdl pa"
 744 ;;
 745 FreeBSD)
 746   bsd="yes"
 747   make="${MAKE-gmake}"
 748   audio_drv_list="oss try-sdl"
 749   audio_possible_drivers="oss sdl pa"
 750   # needed for kinfo_getvmmap(3) in libutil.h
 751   netmap=""  # enable netmap autodetect
 752 ;;
 753 DragonFly)
 754   bsd="yes"
 755   make="${MAKE-gmake}"
 756   audio_drv_list="oss try-sdl"
 757   audio_possible_drivers="oss sdl pa"
 758 ;;
 759 NetBSD)
 760   bsd="yes"
 761   make="${MAKE-gmake}"
 762   audio_drv_list="oss try-sdl"
 763   audio_possible_drivers="oss sdl"
 764   oss_lib="-lossaudio"
 765 ;;
 766 OpenBSD)
 767   bsd="yes"
 768   make="${MAKE-gmake}"
 769   audio_drv_list="try-sdl"
 770   audio_possible_drivers="sdl"
 771 ;;
 772 Darwin)
 773   bsd="yes"
 774   darwin="yes"
 775   if [ "$cpu" = "x86_64" ] ; then
 776     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 777     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 778   fi
 779   audio_drv_list="coreaudio try-sdl"
 780   audio_possible_drivers="coreaudio sdl"
 781   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 782   # Disable attempts to use ObjectiveC features in os/object.h since they
 783   # won't work when we're compiling with gcc as a C compiler.
 784   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 785 ;;
 786 SunOS)
 787   solaris="yes"
 788   make="${MAKE-gmake}"
 789   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 790   if test -f /usr/include/sys/soundcard.h ; then
 791     audio_drv_list="oss try-sdl"
 792   fi
 793   audio_possible_drivers="oss sdl"
 794 # needed for CMSG_ macros in sys/socket.h
 795   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 796 # needed for TIOCWIN* defines in termios.h
 797   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 798 ;;
 799 Haiku)
 800   haiku="yes"
 801   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 802 ;;
 803 Linux)
 804   audio_drv_list="try-pa oss"
 805   audio_possible_drivers="oss alsa sdl pa"
 806   linux="yes"
 807   linux_user="yes"
 808   vhost_user=${default_feature:-yes}
 809 ;;
 810 esac
 811
 812 if [ "$bsd" = "yes" ] ; then
 813   if [ "$darwin" != "yes" ] ; then
 814     bsd_user="yes"
 815   fi
 816 fi
 817
 818 : ${make=${MAKE-make}}
 819
 820 # We prefer python 3.x. A bare 'python' is traditionally
 821 # python 2.x, but some distros have it as python 3.x, so
 822 # we check that too
 823 python=
 824 explicit_python=no
 825 for binary in "${PYTHON-python3}" python
 826 do
 827     if has "$binary"
 828     then
 829         python=$(command -v "$binary")
 830         break
 831     fi
 832 done
 833
 834
 835 # Check for ancillary tools used in testing
 836 genisoimage=
 837 for binary in genisoimage mkisofs
 838 do
 839     if has $binary
 840     then
 841         genisoimage=$(command -v "$binary")
 842         break
 843     fi
 844 done
 845
 846 : ${smbd=${SMBD-/usr/sbin/smbd}}
 847
 848 # Default objcc to clang if available, otherwise use CC
 849 if has clang; then
 850   objcc=clang
 851 else
 852   objcc="$cc"
 853 fi
 854
 855 if test "$mingw32" = "yes" ; then
 856   EXESUF=".exe"
 857   HOST_DSOSUF=".dll"
 858   # MinGW needs -mthreads for TLS and macro _MT.
 859   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 860   write_c_skeleton;
 861   prefix="/qemu"
 862   qemu_suffix=""
 863   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 864 fi
 865
 866 werror=""
 867
 868 for opt do
 869   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 870   case "$opt" in
 871   --help|-h) show_help=yes
 872   ;;
 873   --version|-V) exec cat $source_path/VERSION
 874   ;;
 875   --prefix=*) prefix="$optarg"
 876   ;;
 877   --interp-prefix=*) interp_prefix="$optarg"
 878   ;;
 879   --cross-prefix=*)
 880   ;;
 881   --cc=*)
 882   ;;
 883   --host-cc=*) host_cc="$optarg"
 884   ;;
 885   --cxx=*)
 886   ;;
 887   --iasl=*) iasl="$optarg"
 888   ;;
 889   --objcc=*) objcc="$optarg"
 890   ;;
 891   --make=*) make="$optarg"
 892   ;;
 893   --install=*)
 894   ;;
 895   --python=*) python="$optarg" ; explicit_python=yes
 896   ;;
 897   --sphinx-build=*) sphinx_build="$optarg"
 898   ;;
 899   --skip-meson) skip_meson=yes
 900   ;;
 901   --meson=*) meson="$optarg"
 902   ;;
 903   --ninja=*) ninja="$optarg"
 904   ;;
 905   --smbd=*) smbd="$optarg"
 906   ;;
 907   --extra-cflags=*)
 908   ;;
 909   --extra-cxxflags=*)
 910   ;;
 911   --extra-ldflags=*)
 912   ;;
 913   --enable-debug-info)
 914   ;;
 915   --disable-debug-info)
 916   ;;
 917   --cross-cc-*)
 918   ;;
 919   --enable-modules)
 920       modules="yes"
 921   ;;
 922   --disable-modules)
 923       modules="no"
 924   ;;
 925   --disable-module-upgrades) module_upgrades="no"
 926   ;;
 927   --enable-module-upgrades) module_upgrades="yes"
 928   ;;
 929   --cpu=*)
 930   ;;
 931   --target-list=*) target_list="$optarg"
 932                    if test "$target_list_exclude"; then
 933                        error_exit "Can't mix --target-list with --target-list-exclude"
 934                    fi
 935   ;;
 936   --target-list-exclude=*) target_list_exclude="$optarg"
 937                    if test "$target_list"; then
 938                        error_exit "Can't mix --target-list-exclude with --target-list"
 939                    fi
 940   ;;
 941   --enable-trace-backends=*) trace_backends="$optarg"
 942   ;;
 943   # XXX: backwards compatibility
 944   --enable-trace-backend=*) trace_backends="$optarg"
 945   ;;
 946   --with-trace-file=*) trace_file="$optarg"
 947   ;;
 948   --with-default-devices) default_devices="true"
 949   ;;
 950   --without-default-devices) default_devices="false"
 951   ;;
 952   --without-default-features) # processed above
 953   ;;
 954   --enable-gprof) gprof="yes"
 955   ;;
 956   --enable-gcov) gcov="yes"
 957   ;;
 958   --static)
 959     static="yes"
 960     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 961   ;;
 962   --mandir=*) mandir="$optarg"
 963   ;;
 964   --bindir=*) bindir="$optarg"
 965   ;;
 966   --libdir=*) libdir="$optarg"
 967   ;;
 968   --libexecdir=*) libexecdir="$optarg"
 969   ;;
 970   --includedir=*) includedir="$optarg"
 971   ;;
 972   --datadir=*) datadir="$optarg"
 973   ;;
 974   --with-suffix=*) qemu_suffix="$optarg"
 975   ;;
 976   --docdir=*) docdir="$optarg"
 977   ;;
 978   --localedir=*) localedir="$optarg"
 979   ;;
 980   --sysconfdir=*) sysconfdir="$optarg"
 981   ;;
 982   --localstatedir=*) local_statedir="$optarg"
 983   ;;
 984   --firmwarepath=*) firmwarepath="$optarg"
 985   ;;
 986   --host=*|--build=*|\
 987   --disable-dependency-tracking|\
 988   --sbindir=*|--sharedstatedir=*|\
 989   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 990   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 991     # These switches are silently ignored, for compatibility with
 992     # autoconf-generated configure scripts. This allows QEMU's
 993     # configure to be used by RPM and similar macros that set
 994     # lots of directory switches by default.
 995   ;;
 996   --disable-sdl) sdl="disabled"
 997   ;;
 998   --enable-sdl) sdl="enabled"
 999   ;;
1000   --disable-sdl-image) sdl_image="disabled"
1001   ;;
1002   --enable-sdl-image) sdl_image="enabled"
1003   ;;
1004   --disable-qom-cast-debug) qom_cast_debug="no"
1005   ;;
1006   --enable-qom-cast-debug) qom_cast_debug="yes"
1007   ;;
1008   --disable-virtfs) virtfs="disabled"
1009   ;;
1010   --enable-virtfs) virtfs="enabled"
1011   ;;
1012   --disable-libudev) libudev="disabled"
1013   ;;
1014   --enable-libudev) libudev="enabled"
1015   ;;
1016   --disable-virtiofsd) virtiofsd="disabled"
1017   ;;
1018   --enable-virtiofsd) virtiofsd="enabled"
1019   ;;
1020   --disable-mpath) mpath="disabled"
1021   ;;
1022   --enable-mpath) mpath="enabled"
1023   ;;
1024   --disable-vnc) vnc="disabled"
1025   ;;
1026   --enable-vnc) vnc="enabled"
1027   ;;
1028   --disable-gettext) gettext="disabled"
1029   ;;
1030   --enable-gettext) gettext="enabled"
1031   ;;
1032   --oss-lib=*) oss_lib="$optarg"
1033   ;;
1034   --audio-drv-list=*) audio_drv_list="$optarg"
1035   ;;
1036   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1037   ;;
1038   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1039   ;;
1040   --enable-debug-tcg) debug_tcg="yes"
1041   ;;
1042   --disable-debug-tcg) debug_tcg="no"
1043   ;;
1044   --enable-debug)
1045       # Enable debugging options that aren't excessively noisy
1046       debug_tcg="yes"
1047       debug_mutex="yes"
1048       debug="yes"
1049       strip_opt="no"
1050       fortify_source="no"
1051   ;;
1052   --enable-sanitizers) sanitizers="yes"
1053   ;;
1054   --disable-sanitizers) sanitizers="no"
1055   ;;
1056   --enable-tsan) tsan="yes"
1057   ;;
1058   --disable-tsan) tsan="no"
1059   ;;
1060   --enable-sparse) sparse="enabled"
1061   ;;
1062   --disable-sparse) sparse="disabled"
1063   ;;
1064   --disable-strip) strip_opt="no"
1065   ;;
1066   --disable-vnc-sasl) vnc_sasl="disabled"
1067   ;;
1068   --enable-vnc-sasl) vnc_sasl="enabled"
1069   ;;
1070   --disable-vnc-jpeg) vnc_jpeg="disabled"
1071   ;;
1072   --enable-vnc-jpeg) vnc_jpeg="enabled"
1073   ;;
1074   --disable-vnc-png) vnc_png="disabled"
1075   ;;
1076   --enable-vnc-png) vnc_png="enabled"
1077   ;;
1078   --disable-slirp) slirp="disabled"
1079   ;;
1080   --enable-slirp) slirp="enabled"
1081   ;;
1082   --enable-slirp=git) slirp="internal"
1083   ;;
1084   --enable-slirp=system) slirp="system"
1085   ;;
1086   --disable-vde) vde="no"
1087   ;;
1088   --enable-vde) vde="yes"
1089   ;;
1090   --disable-netmap) netmap="no"
1091   ;;
1092   --enable-netmap) netmap="yes"
1093   ;;
1094   --disable-xen) xen="disabled"
1095   ;;
1096   --enable-xen) xen="enabled"
1097   ;;
1098   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1099   ;;
1100   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1101   ;;
1102   --disable-brlapi) brlapi="disabled"
1103   ;;
1104   --enable-brlapi) brlapi="enabled"
1105   ;;
1106   --disable-kvm) kvm="disabled"
1107   ;;
1108   --enable-kvm) kvm="enabled"
1109   ;;
1110   --disable-hax) hax="disabled"
1111   ;;
1112   --enable-hax) hax="enabled"
1113   ;;
1114   --disable-hvf) hvf="disabled"
1115   ;;
1116   --enable-hvf) hvf="enabled"
1117   ;;
1118   --disable-whpx) whpx="disabled"
1119   ;;
1120   --enable-whpx) whpx="enabled"
1121   ;;
1122   --disable-tcg-interpreter) tcg_interpreter="no"
1123   ;;
1124   --enable-tcg-interpreter) tcg_interpreter="yes"
1125   ;;
1126   --disable-cap-ng)  cap_ng="disabled"
1127   ;;
1128   --enable-cap-ng) cap_ng="enabled"
1129   ;;
1130   --disable-tcg) tcg="disabled"
1131   ;;
1132   --enable-tcg) tcg="enabled"
1133   ;;
1134   --disable-malloc-trim) malloc_trim="disabled"
1135   ;;
1136   --enable-malloc-trim) malloc_trim="enabled"
1137   ;;
1138   --disable-spice) spice="no"
1139   ;;
1140   --enable-spice) spice="yes"
1141   ;;
1142   --disable-libiscsi) libiscsi="disabled"
1143   ;;
1144   --enable-libiscsi) libiscsi="enabled"
1145   ;;
1146   --disable-libnfs) libnfs="disabled"
1147   ;;
1148   --enable-libnfs) libnfs="enabled"
1149   ;;
1150   --enable-profiler) profiler="yes"
1151   ;;
1152   --disable-cocoa) cocoa="disabled"
1153   ;;
1154   --enable-cocoa) cocoa="enabled"
1155   ;;
1156   --disable-system) softmmu="no"
1157   ;;
1158   --enable-system) softmmu="yes"
1159   ;;
1160   --disable-user)
1161       linux_user="no" ;
1162       bsd_user="no" ;
1163   ;;
1164   --enable-user) ;;
1165   --disable-linux-user) linux_user="no"
1166   ;;
1167   --enable-linux-user) linux_user="yes"
1168   ;;
1169   --disable-bsd-user) bsd_user="no"
1170   ;;
1171   --enable-bsd-user) bsd_user="yes"
1172   ;;
1173   --enable-pie) pie="yes"
1174   ;;
1175   --disable-pie) pie="no"
1176   ;;
1177   --enable-werror) werror="yes"
1178   ;;
1179   --disable-werror) werror="no"
1180   ;;
1181   --enable-lto) lto="true"
1182   ;;
1183   --disable-lto) lto="false"
1184   ;;
1185   --enable-stack-protector) stack_protector="yes"
1186   ;;
1187   --disable-stack-protector) stack_protector="no"
1188   ;;
1189   --enable-safe-stack) safe_stack="yes"
1190   ;;
1191   --disable-safe-stack) safe_stack="no"
1192   ;;
1193   --enable-cfi)
1194       cfi="true";
1195       lto="true";
1196   ;;
1197   --disable-cfi) cfi="false"
1198   ;;
1199   --enable-cfi-debug) cfi_debug="true"
1200   ;;
1201   --disable-cfi-debug) cfi_debug="false"
1202   ;;
1203   --disable-curses) curses="disabled"
1204   ;;
1205   --enable-curses) curses="enabled"
1206   ;;
1207   --disable-iconv) iconv="disabled"
1208   ;;
1209   --enable-iconv) iconv="enabled"
1210   ;;
1211   --disable-curl) curl="disabled"
1212   ;;
1213   --enable-curl) curl="enabled"
1214   ;;
1215   --disable-fdt) fdt="disabled"
1216   ;;
1217   --enable-fdt) fdt="enabled"
1218   ;;
1219   --enable-fdt=git) fdt="internal"
1220   ;;
1221   --enable-fdt=system) fdt="system"
1222   ;;
1223   --disable-linux-aio) linux_aio="no"
1224   ;;
1225   --enable-linux-aio) linux_aio="yes"
1226   ;;
1227   --disable-linux-io-uring) linux_io_uring="no"
1228   ;;
1229   --enable-linux-io-uring) linux_io_uring="yes"
1230   ;;
1231   --disable-attr) attr="disabled"
1232   ;;
1233   --enable-attr) attr="enabled"
1234   ;;
1235   --disable-membarrier) membarrier="no"
1236   ;;
1237   --enable-membarrier) membarrier="yes"
1238   ;;
1239   --disable-blobs) blobs="false"
1240   ;;
1241   --with-pkgversion=*) pkgversion="$optarg"
1242   ;;
1243   --with-coroutine=*) coroutine="$optarg"
1244   ;;
1245   --disable-coroutine-pool) coroutine_pool="no"
1246   ;;
1247   --enable-coroutine-pool) coroutine_pool="yes"
1248   ;;
1249   --enable-debug-stack-usage) debug_stack_usage="yes"
1250   ;;
1251   --enable-crypto-afalg) crypto_afalg="yes"
1252   ;;
1253   --disable-crypto-afalg) crypto_afalg="no"
1254   ;;
1255   --disable-docs) docs="disabled"
1256   ;;
1257   --enable-docs) docs="enabled"
1258   ;;
1259   --disable-vhost-net) vhost_net="no"
1260   ;;
1261   --enable-vhost-net) vhost_net="yes"
1262   ;;
1263   --disable-vhost-crypto) vhost_crypto="no"
1264   ;;
1265   --enable-vhost-crypto) vhost_crypto="yes"
1266   ;;
1267   --disable-vhost-scsi) vhost_scsi="no"
1268   ;;
1269   --enable-vhost-scsi) vhost_scsi="yes"
1270   ;;
1271   --disable-vhost-vsock) vhost_vsock="no"
1272   ;;
1273   --enable-vhost-vsock) vhost_vsock="yes"
1274   ;;
1275   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1276   ;;
1277   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1278   ;;
1279   --disable-vhost-user-fs) vhost_user_fs="no"
1280   ;;
1281   --enable-vhost-user-fs) vhost_user_fs="yes"
1282   ;;
1283   --disable-opengl) opengl="no"
1284   ;;
1285   --enable-opengl) opengl="yes"
1286   ;;
1287   --disable-rbd) rbd="disabled"
1288   ;;
1289   --enable-rbd) rbd="enabled"
1290   ;;
1291   --disable-xfsctl) xfs="no"
1292   ;;
1293   --enable-xfsctl) xfs="yes"
1294   ;;
1295   --disable-smartcard) smartcard="no"
1296   ;;
1297   --enable-smartcard) smartcard="yes"
1298   ;;
1299   --disable-u2f) u2f="disabled"
1300   ;;
1301   --enable-u2f) u2f="enabled"
1302   ;;
1303   --disable-libusb) libusb="no"
1304   ;;
1305   --enable-libusb) libusb="yes"
1306   ;;
1307   --disable-usb-redir) usb_redir="no"
1308   ;;
1309   --enable-usb-redir) usb_redir="yes"
1310   ;;
1311   --disable-zlib-test)
1312   ;;
1313   --disable-lzo) lzo="disabled"
1314   ;;
1315   --enable-lzo) lzo="enabled"
1316   ;;
1317   --disable-snappy) snappy="disabled"
1318   ;;
1319   --enable-snappy) snappy="enabled"
1320   ;;
1321   --disable-bzip2) bzip2="disabled"
1322   ;;
1323   --enable-bzip2) bzip2="enabled"
1324   ;;
1325   --enable-lzfse) lzfse="enabled"
1326   ;;
1327   --disable-lzfse) lzfse="disabled"
1328   ;;
1329   --disable-zstd) zstd="disabled"
1330   ;;
1331   --enable-zstd) zstd="enabled"
1332   ;;
1333   --enable-guest-agent) guest_agent="yes"
1334   ;;
1335   --disable-guest-agent) guest_agent="no"
1336   ;;
1337   --enable-guest-agent-msi) guest_agent_msi="yes"
1338   ;;
1339   --disable-guest-agent-msi) guest_agent_msi="no"
1340   ;;
1341   --with-vss-sdk) vss_win32_sdk=""
1342   ;;
1343   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1344   ;;
1345   --without-vss-sdk) vss_win32_sdk="no"
1346   ;;
1347   --with-win-sdk) win_sdk=""
1348   ;;
1349   --with-win-sdk=*) win_sdk="$optarg"
1350   ;;
1351   --without-win-sdk) win_sdk="no"
1352   ;;
1353   --enable-tools) want_tools="yes"
1354   ;;
1355   --disable-tools) want_tools="no"
1356   ;;
1357   --enable-seccomp) seccomp="enabled"
1358   ;;
1359   --disable-seccomp) seccomp="disabled"
1360   ;;
1361   --disable-glusterfs) glusterfs="disabled"
1362   ;;
1363   --disable-avx2) avx2_opt="no"
1364   ;;
1365   --enable-avx2) avx2_opt="yes"
1366   ;;
1367   --disable-avx512f) avx512f_opt="no"
1368   ;;
1369   --enable-avx512f) avx512f_opt="yes"
1370   ;;
1371
1372   --enable-glusterfs) glusterfs="enabled"
1373   ;;
1374   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1375       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1376   ;;
1377   --enable-vhdx|--disable-vhdx)
1378       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1379   ;;
1380   --enable-uuid|--disable-uuid)
1381       echo "$0: $opt is obsolete, UUID support is always built" >&2
1382   ;;
1383   --disable-gtk) gtk="disabled"
1384   ;;
1385   --enable-gtk) gtk="enabled"
1386   ;;
1387   --tls-priority=*) tls_priority="$optarg"
1388   ;;
1389   --disable-gnutls) gnutls="no"
1390   ;;
1391   --enable-gnutls) gnutls="yes"
1392   ;;
1393   --disable-nettle) nettle="no"
1394   ;;
1395   --enable-nettle) nettle="yes"
1396   ;;
1397   --disable-gcrypt) gcrypt="no"
1398   ;;
1399   --enable-gcrypt) gcrypt="yes"
1400   ;;
1401   --disable-auth-pam) auth_pam="no"
1402   ;;
1403   --enable-auth-pam) auth_pam="yes"
1404   ;;
1405   --enable-rdma) rdma="yes"
1406   ;;
1407   --disable-rdma) rdma="no"
1408   ;;
1409   --enable-pvrdma) pvrdma="yes"
1410   ;;
1411   --disable-pvrdma) pvrdma="no"
1412   ;;
1413   --disable-vte) vte="no"
1414   ;;
1415   --enable-vte) vte="yes"
1416   ;;
1417   --disable-virglrenderer) virglrenderer="no"
1418   ;;
1419   --enable-virglrenderer) virglrenderer="yes"
1420   ;;
1421   --disable-tpm) tpm="no"
1422   ;;
1423   --enable-tpm) tpm="yes"
1424   ;;
1425   --disable-libssh) libssh="no"
1426   ;;
1427   --enable-libssh) libssh="yes"
1428   ;;
1429   --disable-live-block-migration) live_block_migration="no"
1430   ;;
1431   --enable-live-block-migration) live_block_migration="yes"
1432   ;;
1433   --disable-numa) numa="no"
1434   ;;
1435   --enable-numa) numa="yes"
1436   ;;
1437   --disable-libxml2) libxml2="no"
1438   ;;
1439   --enable-libxml2) libxml2="yes"
1440   ;;
1441   --disable-tcmalloc) tcmalloc="no"
1442   ;;
1443   --enable-tcmalloc) tcmalloc="yes"
1444   ;;
1445   --disable-jemalloc) jemalloc="no"
1446   ;;
1447   --enable-jemalloc) jemalloc="yes"
1448   ;;
1449   --disable-replication) replication="no"
1450   ;;
1451   --enable-replication) replication="yes"
1452   ;;
1453   --disable-bochs) bochs="no"
1454   ;;
1455   --enable-bochs) bochs="yes"
1456   ;;
1457   --disable-cloop) cloop="no"
1458   ;;
1459   --enable-cloop) cloop="yes"
1460   ;;
1461   --disable-dmg) dmg="no"
1462   ;;
1463   --enable-dmg) dmg="yes"
1464   ;;
1465   --disable-qcow1) qcow1="no"
1466   ;;
1467   --enable-qcow1) qcow1="yes"
1468   ;;
1469   --disable-vdi) vdi="no"
1470   ;;
1471   --enable-vdi) vdi="yes"
1472   ;;
1473   --disable-vvfat) vvfat="no"
1474   ;;
1475   --enable-vvfat) vvfat="yes"
1476   ;;
1477   --disable-qed) qed="no"
1478   ;;
1479   --enable-qed) qed="yes"
1480   ;;
1481   --disable-parallels) parallels="no"
1482   ;;
1483   --enable-parallels) parallels="yes"
1484   ;;
1485   --disable-sheepdog) sheepdog="no"
1486   ;;
1487   --enable-sheepdog) sheepdog="yes"
1488   ;;
1489   --disable-vhost-user) vhost_user="no"
1490   ;;
1491   --enable-vhost-user) vhost_user="yes"
1492   ;;
1493   --disable-vhost-vdpa) vhost_vdpa="no"
1494   ;;
1495   --enable-vhost-vdpa) vhost_vdpa="yes"
1496   ;;
1497   --disable-vhost-kernel) vhost_kernel="no"
1498   ;;
1499   --enable-vhost-kernel) vhost_kernel="yes"
1500   ;;
1501   --disable-capstone) capstone="disabled"
1502   ;;
1503   --enable-capstone) capstone="enabled"
1504   ;;
1505   --enable-capstone=git) capstone="internal"
1506   ;;
1507   --enable-capstone=system) capstone="system"
1508   ;;
1509   --with-git=*) git="$optarg"
1510   ;;
1511   --enable-git-update) git_update=yes
1512   ;;
1513   --disable-git-update) git_update=no
1514   ;;
1515   --enable-debug-mutex) debug_mutex=yes
1516   ;;
1517   --disable-debug-mutex) debug_mutex=no
1518   ;;
1519   --enable-libpmem) libpmem=yes
1520   ;;
1521   --disable-libpmem) libpmem=no
1522   ;;
1523   --enable-xkbcommon) xkbcommon="enabled"
1524   ;;
1525   --disable-xkbcommon) xkbcommon="disabled"
1526   ;;
1527   --enable-plugins) plugins="yes"
1528   ;;
1529   --disable-plugins) plugins="no"
1530   ;;
1531   --enable-containers) use_containers="yes"
1532   ;;
1533   --disable-containers) use_containers="no"
1534   ;;
1535   --enable-fuzzing) fuzzing=yes
1536   ;;
1537   --disable-fuzzing) fuzzing=no
1538   ;;
1539   --gdb=*) gdb_bin="$optarg"
1540   ;;
1541   --enable-rng-none) rng_none=yes
1542   ;;
1543   --disable-rng-none) rng_none=no
1544   ;;
1545   --enable-keyring) secret_keyring="yes"
1546   ;;
1547   --disable-keyring) secret_keyring="no"
1548   ;;
1549   --enable-libdaxctl) libdaxctl=yes
1550   ;;
1551   --disable-libdaxctl) libdaxctl=no
1552   ;;
1553   --enable-fuse) fuse="enabled"
1554   ;;
1555   --disable-fuse) fuse="disabled"
1556   ;;
1557   --enable-fuse-lseek) fuse_lseek="enabled"
1558   ;;
1559   --disable-fuse-lseek) fuse_lseek="disabled"
1560   ;;
1561   *)
1562       echo "ERROR: unknown option $opt"
1563       echo "Try '$0 --help' for more information"
1564       exit 1
1565   ;;
1566   esac
1567 done
1568
1569 libdir="${libdir:-$prefix/lib}"
1570 libexecdir="${libexecdir:-$prefix/libexec}"
1571 includedir="${includedir:-$prefix/include}"
1572
1573 if test "$mingw32" = "yes" ; then
1574     mandir="$prefix"
1575     datadir="$prefix"
1576     docdir="$prefix"
1577     bindir="$prefix"
1578     sysconfdir="$prefix"
1579     local_statedir="$prefix"
1580 else
1581     mandir="${mandir:-$prefix/share/man}"
1582     datadir="${datadir:-$prefix/share}"
1583     docdir="${docdir:-$prefix/share/doc}"
1584     bindir="${bindir:-$prefix/bin}"
1585     sysconfdir="${sysconfdir:-$prefix/etc}"
1586     local_statedir="${local_statedir:-$prefix/var}"
1587 fi
1588 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1589 localedir="${localedir:-$datadir/locale}"
1590
1591 case "$cpu" in
1592     ppc)
1593            CPU_CFLAGS="-m32"
1594            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1595            ;;
1596     ppc64)
1597            CPU_CFLAGS="-m64"
1598            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1599            ;;
1600     sparc)
1601            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1602            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1603            ;;
1604     sparc64)
1605            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1606            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1607            ;;
1608     s390)
1609            CPU_CFLAGS="-m31"
1610            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1611            ;;
1612     s390x)
1613            CPU_CFLAGS="-m64"
1614            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1615            ;;
1616     i386)
1617            CPU_CFLAGS="-m32"
1618            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1619            ;;
1620     x86_64)
1621            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1622            # If we truly care, we should simply detect this case at
1623            # runtime and generate the fallback to serial emulation.
1624            CPU_CFLAGS="-m64 -mcx16"
1625            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1626            ;;
1627     x32)
1628            CPU_CFLAGS="-mx32"
1629            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1630            ;;
1631     # No special flags required for other host CPUs
1632 esac
1633
1634 eval "cross_cc_${cpu}=\$host_cc"
1635 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1636 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1637
1638 # For user-mode emulation the host arch has to be one we explicitly
1639 # support, even if we're using TCI.
1640 if [ "$ARCH" = "unknown" ]; then
1641   bsd_user="no"
1642   linux_user="no"
1643 fi
1644
1645 default_target_list=""
1646 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1647 deprecated_features=""
1648 mak_wilds=""
1649
1650 if [ "$softmmu" = "yes" ]; then
1651     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1652 fi
1653 if [ "$linux_user" = "yes" ]; then
1654     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1655 fi
1656 if [ "$bsd_user" = "yes" ]; then
1657     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1658 fi
1659
1660 # If the user doesn't explicitly specify a deprecated target we will
1661 # skip it.
1662 if test -z "$target_list"; then
1663     if test -z "$target_list_exclude"; then
1664         target_list_exclude="$deprecated_targets_list"
1665     else
1666         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1667     fi
1668 fi
1669
1670 for config in $mak_wilds; do
1671     target="$(basename "$config" .mak)"
1672     if echo "$target_list_exclude" | grep -vq "$target"; then
1673         default_target_list="${default_target_list} $target"
1674     fi
1675 done
1676
1677 # Enumerate public trace backends for --help output
1678 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1679
1680 if test x"$show_help" = x"yes" ; then
1681 cat << EOF
1682
1683 Usage: configure [options]
1684 Options: [defaults in brackets after descriptions]
1685
1686 Standard options:
1687   --help                   print this message
1688   --prefix=PREFIX          install in PREFIX [$prefix]
1689   --interp-prefix=PREFIX   where to find shared libraries, etc.
1690                            use %M for cpu name [$interp_prefix]
1691   --target-list=LIST       set target list (default: build all non-deprecated)
1692 $(echo Available targets: $default_target_list | \
1693   fold -s -w 53 | sed -e 's/^/                           /')
1694 $(echo Deprecated targets: $deprecated_targets_list | \
1695   fold -s -w 53 | sed -e 's/^/                           /')
1696   --target-list-exclude=LIST exclude a set of targets from the default target-list
1697
1698 Advanced options (experts only):
1699   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1700   --cc=CC                  use C compiler CC [$cc]
1701   --iasl=IASL              use ACPI compiler IASL [$iasl]
1702   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1703                            build time
1704   --cxx=CXX                use C++ compiler CXX [$cxx]
1705   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1706   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1707   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1708   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1709   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1710   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1711   --make=MAKE              use specified make [$make]
1712   --python=PYTHON          use specified python [$python]
1713   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1714   --meson=MESON            use specified meson [$meson]
1715   --ninja=NINJA            use specified ninja [$ninja]
1716   --smbd=SMBD              use specified smbd [$smbd]
1717   --with-git=GIT           use specified git [$git]
1718   --static                 enable static build [$static]
1719   --mandir=PATH            install man pages in PATH
1720   --datadir=PATH           install firmware in PATH/$qemu_suffix
1721   --localedir=PATH         install translation in PATH/$qemu_suffix
1722   --docdir=PATH            install documentation in PATH/$qemu_suffix
1723   --bindir=PATH            install binaries in PATH
1724   --libdir=PATH            install libraries in PATH
1725   --libexecdir=PATH        install helper binaries in PATH
1726   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1727   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1728   --firmwarepath=PATH      search PATH for firmware files
1729   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1730   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1731   --with-pkgversion=VERS   use specified string as sub-version of the package
1732   --without-default-features default all --enable-* options to "disabled"
1733   --without-default-devices  do not include any device that is not needed to
1734                            start the emulator (only use if you are including
1735                            desired devices in default-configs/devices/)
1736   --enable-debug           enable common debug build options
1737   --enable-sanitizers      enable default sanitizers
1738   --enable-tsan            enable thread sanitizer
1739   --disable-strip          disable stripping binaries
1740   --disable-werror         disable compilation abort on warning
1741   --disable-stack-protector disable compiler-provided stack protection
1742   --audio-drv-list=LIST    set audio drivers list:
1743                            Available drivers: $audio_possible_drivers
1744   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1745   --block-drv-rw-whitelist=L
1746                            set block driver read-write whitelist
1747                            (affects only QEMU, not qemu-img)
1748   --block-drv-ro-whitelist=L
1749                            set block driver read-only whitelist
1750                            (affects only QEMU, not qemu-img)
1751   --enable-trace-backends=B Set trace backend
1752                            Available backends: $trace_backend_list
1753   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1754                            Default:trace-<pid>
1755   --disable-slirp          disable SLIRP userspace network connectivity
1756   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1757   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1758   --oss-lib                path to OSS library
1759   --cpu=CPU                Build for host CPU [$cpu]
1760   --with-coroutine=BACKEND coroutine backend. Supported options:
1761                            ucontext, sigaltstack, windows
1762   --enable-gcov            enable test coverage analysis with gcov
1763   --disable-blobs          disable installing provided firmware blobs
1764   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1765   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1766   --tls-priority           default TLS protocol/cipher priority string
1767   --enable-gprof           QEMU profiling with gprof
1768   --enable-profiler        profiler support
1769   --enable-debug-stack-usage
1770                            track the maximum stack usage of stacks created by qemu_alloc_stack
1771   --enable-plugins
1772                            enable plugins via shared library loading
1773   --disable-containers     don't use containers for cross-building
1774   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1775
1776 Optional features, enabled with --enable-FEATURE and
1777 disabled with --disable-FEATURE, default is enabled if available
1778 (unless built with --without-default-features):
1779
1780   system          all system emulation targets
1781   user            supported user emulation targets
1782   linux-user      all linux usermode emulation targets
1783   bsd-user        all BSD usermode emulation targets
1784   docs            build documentation
1785   guest-agent     build the QEMU Guest Agent
1786   guest-agent-msi build guest agent Windows MSI installation package
1787   pie             Position Independent Executables
1788   modules         modules support (non-Windows)
1789   module-upgrades try to load modules from alternate paths for upgrades
1790   debug-tcg       TCG debugging (default is disabled)
1791   debug-info      debugging information
1792   lto             Enable Link-Time Optimization.
1793   sparse          sparse checker
1794   safe-stack      SafeStack Stack Smash Protection. Depends on
1795                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1796   cfi             Enable Control-Flow Integrity for indirect function calls.
1797                   In case of a cfi violation, QEMU is terminated with SIGILL
1798                   Depends on lto and is incompatible with modules
1799                   Automatically enables Link-Time Optimization (lto)
1800   cfi-debug       In case of a cfi violation, a message containing the line that
1801                   triggered the error is written to stderr. After the error,
1802                   QEMU is still terminated with SIGILL
1803   gnutls          GNUTLS cryptography support
1804   nettle          nettle cryptography support
1805   gcrypt          libgcrypt cryptography support
1806   auth-pam        PAM access control
1807   sdl             SDL UI
1808   sdl-image       SDL Image support for icons
1809   gtk             gtk UI
1810   vte             vte support for the gtk UI
1811   curses          curses UI
1812   iconv           font glyph conversion support
1813   vnc             VNC UI support
1814   vnc-sasl        SASL encryption for VNC server
1815   vnc-jpeg        JPEG lossy compression for VNC server
1816   vnc-png         PNG compression for VNC server
1817   cocoa           Cocoa UI (Mac OS X only)
1818   virtfs          VirtFS
1819   virtiofsd       build virtiofs daemon (virtiofsd)
1820   libudev         Use libudev to enumerate host devices
1821   mpath           Multipath persistent reservation passthrough
1822   xen             xen backend driver support
1823   xen-pci-passthrough    PCI passthrough support for Xen
1824   brlapi          BrlAPI (Braile)
1825   curl            curl connectivity
1826   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1827   fdt             fdt device tree
1828   kvm             KVM acceleration support
1829   hax             HAX acceleration support
1830   hvf             Hypervisor.framework acceleration support
1831   whpx            Windows Hypervisor Platform acceleration support
1832   rdma            Enable RDMA-based migration
1833   pvrdma          Enable PVRDMA support
1834   vde             support for vde network
1835   netmap          support for netmap network
1836   linux-aio       Linux AIO support
1837   linux-io-uring  Linux io_uring support
1838   cap-ng          libcap-ng support
1839   attr            attr and xattr support
1840   vhost-net       vhost-net kernel acceleration support
1841   vhost-vsock     virtio sockets device support
1842   vhost-scsi      vhost-scsi kernel target support
1843   vhost-crypto    vhost-user-crypto backend support
1844   vhost-kernel    vhost kernel backend support
1845   vhost-user      vhost-user backend support
1846   vhost-user-blk-server    vhost-user-blk server support
1847   vhost-vdpa      vhost-vdpa kernel backend support
1848   spice           spice
1849   rbd             rados block device (rbd)
1850   libiscsi        iscsi support
1851   libnfs          nfs support
1852   smartcard       smartcard support (libcacard)
1853   u2f             U2F support (u2f-emu)
1854   libusb          libusb (for usb passthrough)
1855   live-block-migration   Block migration in the main migration stream
1856   usb-redir       usb network redirection support
1857   lzo             support of lzo compression library
1858   snappy          support of snappy compression library
1859   bzip2           support of bzip2 compression library
1860                   (for reading bzip2-compressed dmg images)
1861   lzfse           support of lzfse compression library
1862                   (for reading lzfse-compressed dmg images)
1863   zstd            support for zstd compression library
1864                   (for migration compression and qcow2 cluster compression)
1865   seccomp         seccomp support
1866   coroutine-pool  coroutine freelist (better performance)
1867   glusterfs       GlusterFS backend
1868   tpm             TPM support
1869   libssh          ssh block device support
1870   numa            libnuma support
1871   libxml2         for Parallels image format
1872   tcmalloc        tcmalloc support
1873   jemalloc        jemalloc support
1874   avx2            AVX2 optimization support
1875   avx512f         AVX512F optimization support
1876   replication     replication support
1877   opengl          opengl support
1878   virglrenderer   virgl rendering support
1879   xfsctl          xfsctl support
1880   qom-cast-debug  cast debugging support
1881   tools           build qemu-io, qemu-nbd and qemu-img tools
1882   bochs           bochs image format support
1883   cloop           cloop image format support
1884   dmg             dmg image format support
1885   qcow1           qcow v1 image format support
1886   vdi             vdi image format support
1887   vvfat           vvfat image format support
1888   qed             qed image format support
1889   parallels       parallels image format support
1890   sheepdog        sheepdog block driver support (deprecated)
1891   crypto-afalg    Linux AF_ALG crypto backend driver
1892   capstone        capstone disassembler support
1893   debug-mutex     mutex debugging support
1894   libpmem         libpmem support
1895   xkbcommon       xkbcommon support
1896   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1897   libdaxctl       libdaxctl support
1898   fuse            FUSE block device export
1899   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1900
1901 NOTE: The object files are built at the place where configure is launched
1902 EOF
1903 exit 0
1904 fi
1905
1906 # Remove old dependency files to make sure that they get properly regenerated
1907 rm -f */config-devices.mak.d
1908
1909 if test -z "$python"
1910 then
1911     error_exit "Python not found. Use --python=/path/to/python"
1912 fi
1913 if ! has "$make"
1914 then
1915     error_exit "GNU make ($make) not found"
1916 fi
1917
1918 # Note that if the Python conditional here evaluates True we will exit
1919 # with status 1 which is a shell 'false' value.
1920 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1921   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1922       "Use --python=/path/to/python to specify a supported Python."
1923 fi
1924
1925 # Preserve python version since some functionality is dependent on it
1926 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)
1927
1928 # Suppress writing compiled files
1929 python="$python -B"
1930
1931 if test -z "$meson"; then
1932     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1933         meson=meson
1934     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1935         meson=git
1936     elif test -e "${source_path}/meson/meson.py" ; then
1937         meson=internal
1938     else
1939         if test "$explicit_python" = yes; then
1940             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1941         else
1942             error_exit "Meson not found.  Use --meson=/path/to/meson"
1943         fi
1944     fi
1945 else
1946     # Meson uses its own Python interpreter to invoke other Python scripts,
1947     # but the user wants to use the one they specified with --python.
1948     #
1949     # We do not want to override the distro Python interpreter (and sometimes
1950     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1951     # just require --meson=git|internal together with --python.
1952     if test "$explicit_python" = yes; then
1953         case "$meson" in
1954             git | internal) ;;
1955             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1956         esac
1957     fi
1958 fi
1959
1960 if test "$meson" = git; then
1961     git_submodules="${git_submodules} meson"
1962 fi
1963
1964 case "$meson" in
1965     git | internal)
1966         meson="$python ${source_path}/meson/meson.py"
1967         ;;
1968     *) meson=$(command -v "$meson") ;;
1969 esac
1970
1971 # Probe for ninja
1972
1973 if test -z "$ninja"; then
1974     for c in ninja ninja-build samu; do
1975         if has $c; then
1976             ninja=$(command -v "$c")
1977             break
1978         fi
1979     done
1980     if test -z "$ninja"; then
1981       error_exit "Cannot find Ninja"
1982     fi
1983 fi
1984
1985 # Check that the C compiler works. Doing this here before testing
1986 # the host CPU ensures that we had a valid CC to autodetect the
1987 # $cpu var (and we should bail right here if that's not the case).
1988 # It also allows the help message to be printed without a CC.
1989 write_c_skeleton;
1990 if compile_object ; then
1991   : C compiler works ok
1992 else
1993     error_exit "\"$cc\" either does not exist or does not work"
1994 fi
1995 if ! compile_prog ; then
1996     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1997 fi
1998
1999 # Consult white-list to determine whether to enable werror
2000 # by default.  Only enable by default for git builds
2001 if test -z "$werror" ; then
2002     if test -e "$source_path/.git" && \
2003         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2004         werror="yes"
2005     else
2006         werror="no"
2007     fi
2008 fi
2009
2010 if test "$targetos" = "bogus"; then
2011     # Now that we know that we're not printing the help and that
2012     # the compiler works (so the results of the check_defines we used
2013     # to identify the OS are reliable), if we didn't recognize the
2014     # host OS we should stop now.
2015     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2016 fi
2017
2018 # Check whether the compiler matches our minimum requirements:
2019 cat > $TMPC << EOF
2020 #if defined(__clang_major__) && defined(__clang_minor__)
2021 # ifdef __apple_build_version__
2022 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2023 #   error You need at least XCode Clang v5.1 to compile QEMU
2024 #  endif
2025 # else
2026 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2027 #   error You need at least Clang v3.4 to compile QEMU
2028 #  endif
2029 # endif
2030 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2031 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2032 #  error You need at least GCC v4.8 to compile QEMU
2033 # endif
2034 #else
2035 # error You either need GCC or Clang to compiler QEMU
2036 #endif
2037 int main (void) { return 0; }
2038 EOF
2039 if ! compile_prog "" "" ; then
2040     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2041 fi
2042
2043 # Accumulate -Wfoo and -Wno-bar separately.
2044 # We will list all of the enable flags first, and the disable flags second.
2045 # Note that we do not add -Werror, because that would enable it for all
2046 # configure tests. If a configure test failed due to -Werror this would
2047 # just silently disable some features, so it's too error prone.
2048
2049 warn_flags=
2050 add_to warn_flags -Wold-style-declaration
2051 add_to warn_flags -Wold-style-definition
2052 add_to warn_flags -Wtype-limits
2053 add_to warn_flags -Wformat-security
2054 add_to warn_flags -Wformat-y2k
2055 add_to warn_flags -Winit-self
2056 add_to warn_flags -Wignored-qualifiers
2057 add_to warn_flags -Wempty-body
2058 add_to warn_flags -Wnested-externs
2059 add_to warn_flags -Wendif-labels
2060 add_to warn_flags -Wexpansion-to-defined
2061 add_to warn_flags -Wimplicit-fallthrough=2
2062
2063 nowarn_flags=
2064 add_to nowarn_flags -Wno-initializer-overrides
2065 add_to nowarn_flags -Wno-missing-include-dirs
2066 add_to nowarn_flags -Wno-shift-negative-value
2067 add_to nowarn_flags -Wno-string-plus-int
2068 add_to nowarn_flags -Wno-typedef-redefinition
2069 add_to nowarn_flags -Wno-tautological-type-limit-compare
2070 add_to nowarn_flags -Wno-psabi
2071
2072 gcc_flags="$warn_flags $nowarn_flags"
2073
2074 cc_has_warning_flag() {
2075     write_c_skeleton;
2076
2077     # Use the positive sense of the flag when testing for -Wno-wombat
2078     # support (gcc will happily accept the -Wno- form of unknown
2079     # warning options).
2080     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2081     compile_prog "-Werror $optflag" ""
2082 }
2083
2084 for flag in $gcc_flags; do
2085     if cc_has_warning_flag $flag ; then
2086         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2087     fi
2088 done
2089
2090 if test "$stack_protector" != "no"; then
2091   cat > $TMPC << EOF
2092 int main(int argc, char *argv[])
2093 {
2094     char arr[64], *p = arr, *c = argv[0];
2095     while (*c) {
2096         *p++ = *c++;
2097     }
2098     return 0;
2099 }
2100 EOF
2101   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2102   sp_on=0
2103   for flag in $gcc_flags; do
2104     # We need to check both a compile and a link, since some compiler
2105     # setups fail only on a .c->.o compile and some only at link time
2106     if compile_object "-Werror $flag" &&
2107        compile_prog "-Werror $flag" ""; then
2108       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2109       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2110       sp_on=1
2111       break
2112     fi
2113   done
2114   if test "$stack_protector" = yes; then
2115     if test $sp_on = 0; then
2116       error_exit "Stack protector not supported"
2117     fi
2118   fi
2119 fi
2120
2121 # Disable -Wmissing-braces on older compilers that warn even for
2122 # the "universal" C zero initializer {0}.
2123 cat > $TMPC << EOF
2124 struct {
2125   int a[2];
2126 } x = {0};
2127 EOF
2128 if compile_object "-Werror" "" ; then
2129   :
2130 else
2131   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2132 fi
2133
2134 # Our module code doesn't support Windows
2135 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2136   error_exit "Modules are not available for Windows"
2137 fi
2138
2139 # module_upgrades is only reasonable if modules are enabled
2140 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2141   error_exit "Can't enable module-upgrades as Modules are not enabled"
2142 fi
2143
2144 # Static linking is not possible with modules or PIE
2145 if test "$static" = "yes" ; then
2146   if test "$modules" = "yes" ; then
2147     error_exit "static and modules are mutually incompatible"
2148   fi
2149 fi
2150
2151 # Unconditional check for compiler __thread support
2152   cat > $TMPC << EOF
2153 static __thread int tls_var;
2154 int main(void) { return tls_var; }
2155 EOF
2156
2157 if ! compile_prog "-Werror" "" ; then
2158     error_exit "Your compiler does not support the __thread specifier for " \
2159         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2160 fi
2161
2162 cat > $TMPC << EOF
2163
2164 #ifdef __linux__
2165 #  define THREAD __thread
2166 #else
2167 #  define THREAD
2168 #endif
2169 static THREAD int tls_var;
2170 int main(void) { return tls_var; }
2171 EOF
2172
2173 # Check we support --no-pie first; we will need this for building ROMs.
2174 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2175   CFLAGS_NOPIE="-fno-pie"
2176 fi
2177
2178 if test "$static" = "yes"; then
2179   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2180     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2181     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2182     pie="yes"
2183   elif test "$pie" = "yes"; then
2184     error_exit "-static-pie not available due to missing toolchain support"
2185   else
2186     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2187     pie="no"
2188   fi
2189 elif test "$pie" = "no"; then
2190   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2191 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2192   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2193   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2194   pie="yes"
2195 elif test "$pie" = "yes"; then
2196   error_exit "PIE not available due to missing toolchain support"
2197 else
2198   echo "Disabling PIE due to missing toolchain support"
2199   pie="no"
2200 fi
2201
2202 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2203 # The combination is known as "full relro", because .got.plt is read-only too.
2204 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2205   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2206 fi
2207
2208 ##########################################
2209 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2210 # use i686 as default anyway, but for those that don't, an explicit
2211 # specification is necessary
2212
2213 if test "$cpu" = "i386"; then
2214   cat > $TMPC << EOF
2215 static int sfaa(int *ptr)
2216 {
2217   return __sync_fetch_and_and(ptr, 0);
2218 }
2219
2220 int main(void)
2221 {
2222   int val = 42;
2223   val = __sync_val_compare_and_swap(&val, 0, 1);
2224   sfaa(&val);
2225   return val;
2226 }
2227 EOF
2228   if ! compile_prog "" "" ; then
2229     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2230   fi
2231 fi
2232
2233 #########################################
2234 # Solaris specific configure tool chain decisions
2235
2236 if test "$solaris" = "yes" ; then
2237   if has ar; then
2238     :
2239   else
2240     if test -f /usr/ccs/bin/ar ; then
2241       error_exit "No path includes ar" \
2242           "Add /usr/ccs/bin to your path and rerun configure"
2243     fi
2244     error_exit "No path includes ar"
2245   fi
2246 fi
2247
2248 if test -z "${target_list+xxx}" ; then
2249     default_targets=yes
2250     for target in $default_target_list; do
2251         target_list="$target_list $target"
2252     done
2253     target_list="${target_list# }"
2254 else
2255     default_targets=no
2256     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2257     for target in $target_list; do
2258         # Check that we recognised the target name; this allows a more
2259         # friendly error message than if we let it fall through.
2260         case " $default_target_list " in
2261             *" $target "*)
2262                 ;;
2263             *)
2264                 error_exit "Unknown target name '$target'"
2265                 ;;
2266         esac
2267     done
2268 fi
2269
2270 for target in $target_list; do
2271     # if a deprecated target is enabled we note it here
2272     if echo "$deprecated_targets_list" | grep -q "$target"; then
2273         add_to deprecated_features $target
2274     fi
2275 done
2276
2277 # see if system emulation was really requested
2278 case " $target_list " in
2279   *"-softmmu "*) softmmu=yes
2280   ;;
2281   *) softmmu=no
2282   ;;
2283 esac
2284
2285 feature_not_found() {
2286   feature=$1
2287   remedy=$2
2288
2289   error_exit "User requested feature $feature" \
2290       "configure was not able to find it." \
2291       "$remedy"
2292 }
2293
2294 # ---
2295 # big/little endian test
2296 cat > $TMPC << EOF
2297 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2298 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2299 extern int foo(short *, short *);
2300 int main(int argc, char *argv[]) {
2301     return foo(big_endian, little_endian);
2302 }
2303 EOF
2304
2305 if compile_object ; then
2306     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2307         bigendian="yes"
2308     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2309         bigendian="no"
2310     else
2311         echo big/little test failed
2312     fi
2313 else
2314     echo big/little test failed
2315 fi
2316
2317 ##########################################
2318 # system tools
2319 if test -z "$want_tools"; then
2320     if test "$softmmu" = "no"; then
2321         want_tools=no
2322     else
2323         want_tools=yes
2324     fi
2325 fi
2326
2327 ##########################################
2328 # Some versions of Mac OS X incorrectly define SIZE_MAX
2329 cat > $TMPC << EOF
2330 #include <stdint.h>
2331 #include <stdio.h>
2332 int main(int argc, char *argv[]) {
2333     return printf("%zu", SIZE_MAX);
2334 }
2335 EOF
2336 have_broken_size_max=no
2337 if ! compile_object -Werror ; then
2338     have_broken_size_max=yes
2339 fi
2340
2341 ##########################################
2342 # L2TPV3 probe
2343
2344 cat > $TMPC <<EOF
2345 #include <sys/socket.h>
2346 #include <linux/ip.h>
2347 int main(void) { return sizeof(struct mmsghdr); }
2348 EOF
2349 if compile_prog "" "" ; then
2350   l2tpv3=yes
2351 else
2352   l2tpv3=no
2353 fi
2354
2355 cat > $TMPC <<EOF
2356 #include <sys/mman.h>
2357 int main(int argc, char *argv[]) {
2358     return mlockall(MCL_FUTURE);
2359 }
2360 EOF
2361 if compile_prog "" "" ; then
2362   have_mlockall=yes
2363 else
2364   have_mlockall=no
2365 fi
2366
2367 #########################################
2368 # vhost interdependencies and host support
2369
2370 # vhost backends
2371 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2372   error_exit "vhost-user is only available on Linux"
2373 fi
2374 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2375 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2376   error_exit "vhost-vdpa is only available on Linux"
2377 fi
2378 test "$vhost_kernel" = "" && vhost_kernel=$linux
2379 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2380   error_exit "vhost-kernel is only available on Linux"
2381 fi
2382
2383 # vhost-kernel devices
2384 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2385 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2386   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2387 fi
2388 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2389 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2390   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2391 fi
2392
2393 # vhost-user backends
2394 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2395 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2396   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2397 fi
2398 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2399 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2400   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2401 fi
2402 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2403 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2404   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2405 fi
2406 #vhost-vdpa backends
2407 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2408 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2409   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2410 fi
2411
2412 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2413 if test "$vhost_net" = ""; then
2414   test "$vhost_net_user" = "yes" && vhost_net=yes
2415   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2416   test "$vhost_kernel" = "yes" && vhost_net=yes
2417 fi
2418
2419 ##########################################
2420 # pkg-config probe
2421
2422 if ! has "$pkg_config_exe"; then
2423   error_exit "pkg-config binary '$pkg_config_exe' not found"
2424 fi
2425
2426 ##########################################
2427 # NPTL probe
2428
2429 if test "$linux_user" = "yes"; then
2430   cat > $TMPC <<EOF
2431 #include <sched.h>
2432 #include <linux/futex.h>
2433 int main(void) {
2434 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2435 #error bork
2436 #endif
2437   return 0;
2438 }
2439 EOF
2440   if ! compile_object ; then
2441     feature_not_found "nptl" "Install glibc and linux kernel headers."
2442   fi
2443 fi
2444
2445 ##########################################
2446 # xen probe
2447
2448 if test "$xen" != "disabled" ; then
2449   # Check whether Xen library path is specified via --extra-ldflags to avoid
2450   # overriding this setting with pkg-config output. If not, try pkg-config
2451   # to obtain all needed flags.
2452
2453   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2454      $pkg_config --exists xencontrol ; then
2455     xen_ctrl_version="$(printf '%d%02d%02d' \
2456       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2457     xen=enabled
2458     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2459     xen_pc="$xen_pc xenevtchn xendevicemodel"
2460     if $pkg_config --exists xentoolcore; then
2461       xen_pc="$xen_pc xentoolcore"
2462     fi
2463     xen_cflags="$($pkg_config --cflags $xen_pc)"
2464     xen_libs="$($pkg_config --libs $xen_pc)"
2465   else
2466
2467     xen_libs="-lxenstore -lxenctrl"
2468     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2469
2470     # First we test whether Xen headers and libraries are available.
2471     # If no, we are done and there is no Xen support.
2472     # If yes, more tests are run to detect the Xen version.
2473
2474     # Xen (any)
2475     cat > $TMPC <<EOF
2476 #include <xenctrl.h>
2477 int main(void) {
2478   return 0;
2479 }
2480 EOF
2481     if ! compile_prog "" "$xen_libs" ; then
2482       # Xen not found
2483       if test "$xen" = "enabled" ; then
2484         feature_not_found "xen" "Install xen devel"
2485       fi
2486       xen=disabled
2487
2488     # Xen unstable
2489     elif
2490         cat > $TMPC <<EOF &&
2491 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2492 #define __XEN_TOOLS__
2493 #include <xendevicemodel.h>
2494 #include <xenforeignmemory.h>
2495 int main(void) {
2496   xendevicemodel_handle *xd;
2497   xenforeignmemory_handle *xfmem;
2498
2499   xd = xendevicemodel_open(0, 0);
2500   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2501
2502   xfmem = xenforeignmemory_open(0, 0);
2503   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2504
2505   return 0;
2506 }
2507 EOF
2508         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2509       then
2510       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2511       xen_ctrl_version=41100
2512       xen=enabled
2513     elif
2514         cat > $TMPC <<EOF &&
2515 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2516 #include <xenforeignmemory.h>
2517 #include <xentoolcore.h>
2518 int main(void) {
2519   xenforeignmemory_handle *xfmem;
2520
2521   xfmem = xenforeignmemory_open(0, 0);
2522   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2523   xentoolcore_restrict_all(0);
2524
2525   return 0;
2526 }
2527 EOF
2528         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2529       then
2530       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2531       xen_ctrl_version=41000
2532       xen=enabled
2533     elif
2534         cat > $TMPC <<EOF &&
2535 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2536 #define __XEN_TOOLS__
2537 #include <xendevicemodel.h>
2538 int main(void) {
2539   xendevicemodel_handle *xd;
2540
2541   xd = xendevicemodel_open(0, 0);
2542   xendevicemodel_close(xd);
2543
2544   return 0;
2545 }
2546 EOF
2547         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2548       then
2549       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2550       xen_ctrl_version=40900
2551       xen=enabled
2552     elif
2553         cat > $TMPC <<EOF &&
2554 /*
2555  * If we have stable libs the we don't want the libxc compat
2556  * layers, regardless of what CFLAGS we may have been given.
2557  *
2558  * Also, check if xengnttab_grant_copy_segment_t is defined and
2559  * grant copy operation is implemented.
2560  */
2561 #undef XC_WANT_COMPAT_EVTCHN_API
2562 #undef XC_WANT_COMPAT_GNTTAB_API
2563 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2564 #include <xenctrl.h>
2565 #include <xenstore.h>
2566 #include <xenevtchn.h>
2567 #include <xengnttab.h>
2568 #include <xenforeignmemory.h>
2569 #include <stdint.h>
2570 #include <xen/hvm/hvm_info_table.h>
2571 #if !defined(HVM_MAX_VCPUS)
2572 # error HVM_MAX_VCPUS not defined
2573 #endif
2574 int main(void) {
2575   xc_interface *xc = NULL;
2576   xenforeignmemory_handle *xfmem;
2577   xenevtchn_handle *xe;
2578   xengnttab_handle *xg;
2579   xengnttab_grant_copy_segment_t* seg = NULL;
2580
2581   xs_daemon_open();
2582
2583   xc = xc_interface_open(0, 0, 0);
2584   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2585   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2586   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2587   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2588
2589   xfmem = xenforeignmemory_open(0, 0);
2590   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2591
2592   xe = xenevtchn_open(0, 0);
2593   xenevtchn_fd(xe);
2594
2595   xg = xengnttab_open(0, 0);
2596   xengnttab_grant_copy(xg, 0, seg);
2597
2598   return 0;
2599 }
2600 EOF
2601         compile_prog "" "$xen_libs $xen_stable_libs"
2602       then
2603       xen_ctrl_version=40800
2604       xen=enabled
2605     elif
2606         cat > $TMPC <<EOF &&
2607 /*
2608  * If we have stable libs the we don't want the libxc compat
2609  * layers, regardless of what CFLAGS we may have been given.
2610  */
2611 #undef XC_WANT_COMPAT_EVTCHN_API
2612 #undef XC_WANT_COMPAT_GNTTAB_API
2613 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2614 #include <xenctrl.h>
2615 #include <xenstore.h>
2616 #include <xenevtchn.h>
2617 #include <xengnttab.h>
2618 #include <xenforeignmemory.h>
2619 #include <stdint.h>
2620 #include <xen/hvm/hvm_info_table.h>
2621 #if !defined(HVM_MAX_VCPUS)
2622 # error HVM_MAX_VCPUS not defined
2623 #endif
2624 int main(void) {
2625   xc_interface *xc = NULL;
2626   xenforeignmemory_handle *xfmem;
2627   xenevtchn_handle *xe;
2628   xengnttab_handle *xg;
2629
2630   xs_daemon_open();
2631
2632   xc = xc_interface_open(0, 0, 0);
2633   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2634   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2635   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2636   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2637
2638   xfmem = xenforeignmemory_open(0, 0);
2639   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2640
2641   xe = xenevtchn_open(0, 0);
2642   xenevtchn_fd(xe);
2643
2644   xg = xengnttab_open(0, 0);
2645   xengnttab_map_grant_ref(xg, 0, 0, 0);
2646
2647   return 0;
2648 }
2649 EOF
2650         compile_prog "" "$xen_libs $xen_stable_libs"
2651       then
2652       xen_ctrl_version=40701
2653       xen=enabled
2654
2655     # Xen 4.6
2656     elif
2657         cat > $TMPC <<EOF &&
2658 #include <xenctrl.h>
2659 #include <xenstore.h>
2660 #include <stdint.h>
2661 #include <xen/hvm/hvm_info_table.h>
2662 #if !defined(HVM_MAX_VCPUS)
2663 # error HVM_MAX_VCPUS not defined
2664 #endif
2665 int main(void) {
2666   xc_interface *xc;
2667   xs_daemon_open();
2668   xc = xc_interface_open(0, 0, 0);
2669   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2670   xc_gnttab_open(NULL, 0);
2671   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2672   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2673   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2674   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2675   return 0;
2676 }
2677 EOF
2678         compile_prog "" "$xen_libs"
2679       then
2680       xen_ctrl_version=40600
2681       xen=enabled
2682
2683     # Xen 4.5
2684     elif
2685         cat > $TMPC <<EOF &&
2686 #include <xenctrl.h>
2687 #include <xenstore.h>
2688 #include <stdint.h>
2689 #include <xen/hvm/hvm_info_table.h>
2690 #if !defined(HVM_MAX_VCPUS)
2691 # error HVM_MAX_VCPUS not defined
2692 #endif
2693 int main(void) {
2694   xc_interface *xc;
2695   xs_daemon_open();
2696   xc = xc_interface_open(0, 0, 0);
2697   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2698   xc_gnttab_open(NULL, 0);
2699   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2700   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2701   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2702   return 0;
2703 }
2704 EOF
2705         compile_prog "" "$xen_libs"
2706       then
2707       xen_ctrl_version=40500
2708       xen=enabled
2709
2710     elif
2711         cat > $TMPC <<EOF &&
2712 #include <xenctrl.h>
2713 #include <xenstore.h>
2714 #include <stdint.h>
2715 #include <xen/hvm/hvm_info_table.h>
2716 #if !defined(HVM_MAX_VCPUS)
2717 # error HVM_MAX_VCPUS not defined
2718 #endif
2719 int main(void) {
2720   xc_interface *xc;
2721   xs_daemon_open();
2722   xc = xc_interface_open(0, 0, 0);
2723   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2724   xc_gnttab_open(NULL, 0);
2725   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2726   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2727   return 0;
2728 }
2729 EOF
2730         compile_prog "" "$xen_libs"
2731       then
2732       xen_ctrl_version=40200
2733       xen=enabled
2734
2735     else
2736       if test "$xen" = "enabled" ; then
2737         feature_not_found "xen (unsupported version)" \
2738                           "Install a supported xen (xen 4.2 or newer)"
2739       fi
2740       xen=disabled
2741     fi
2742
2743     if test "$xen" = enabled; then
2744       if test $xen_ctrl_version -ge 40701  ; then
2745         xen_libs="$xen_libs $xen_stable_libs "
2746       fi
2747     fi
2748   fi
2749 fi
2750
2751 ##########################################
2752 # GNUTLS probe
2753
2754 if test "$gnutls" != "no"; then
2755     pass="no"
2756     if $pkg_config --exists "gnutls >= 3.1.18"; then
2757         gnutls_cflags=$($pkg_config --cflags gnutls)
2758         gnutls_libs=$($pkg_config --libs gnutls)
2759         # Packaging for the static libraries is not always correct.
2760         # At least ubuntu 18.04 ships only shared libraries.
2761         write_c_skeleton
2762         if compile_prog "" "$gnutls_libs" ; then
2763             pass="yes"
2764         fi
2765     fi
2766     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2767         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2768     else
2769         gnutls="$pass"
2770     fi
2771 fi
2772
2773
2774 # If user didn't give a --disable/enable-gcrypt flag,
2775 # then mark as disabled if user requested nettle
2776 # explicitly
2777 if test -z "$gcrypt"
2778 then
2779     if test "$nettle" = "yes"
2780     then
2781         gcrypt="no"
2782     fi
2783 fi
2784
2785 # If user didn't give a --disable/enable-nettle flag,
2786 # then mark as disabled if user requested gcrypt
2787 # explicitly
2788 if test -z "$nettle"
2789 then
2790     if test "$gcrypt" = "yes"
2791     then
2792         nettle="no"
2793     fi
2794 fi
2795
2796 has_libgcrypt() {
2797     if ! has "libgcrypt-config"
2798     then
2799         return 1
2800     fi
2801
2802     if test -n "$cross_prefix"
2803     then
2804         host=$(libgcrypt-config --host)
2805         if test "$host-" != $cross_prefix
2806         then
2807             return 1
2808         fi
2809     fi
2810
2811     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2812     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2813
2814     if test $maj != 1 || test $min -lt 5
2815     then
2816        return 1
2817     fi
2818
2819     return 0
2820 }
2821
2822
2823 if test "$nettle" != "no"; then
2824     pass="no"
2825     if $pkg_config --exists "nettle >= 2.7.1"; then
2826         nettle_cflags=$($pkg_config --cflags nettle)
2827         nettle_libs=$($pkg_config --libs nettle)
2828         nettle_version=$($pkg_config --modversion nettle)
2829         # Link test to make sure the given libraries work (e.g for static).
2830         write_c_skeleton
2831         if compile_prog "" "$nettle_libs" ; then
2832             if test -z "$gcrypt"; then
2833                gcrypt="no"
2834             fi
2835             pass="yes"
2836         fi
2837     fi
2838     if test "$pass" = "yes"
2839     then
2840         cat > $TMPC << EOF
2841 #include <nettle/xts.h>
2842 int main(void) {
2843   return 0;
2844 }
2845 EOF
2846         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2847             nettle_xts=yes
2848             qemu_private_xts=no
2849         fi
2850     fi
2851     if test "$pass" = "no" && test "$nettle" = "yes"; then
2852         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2853     else
2854         nettle="$pass"
2855     fi
2856 fi
2857
2858 if test "$gcrypt" != "no"; then
2859     pass="no"
2860     if has_libgcrypt; then
2861         gcrypt_cflags=$(libgcrypt-config --cflags)
2862         gcrypt_libs=$(libgcrypt-config --libs)
2863         # Debian has removed -lgpg-error from libgcrypt-config
2864         # as it "spreads unnecessary dependencies" which in
2865         # turn breaks static builds...
2866         if test "$static" = "yes"
2867         then
2868             gcrypt_libs="$gcrypt_libs -lgpg-error"
2869         fi
2870
2871         # Link test to make sure the given libraries work (e.g for static).
2872         write_c_skeleton
2873         if compile_prog "" "$gcrypt_libs" ; then
2874             pass="yes"
2875         fi
2876     fi
2877     if test "$pass" = "yes"; then
2878         gcrypt="yes"
2879         cat > $TMPC << EOF
2880 #include <gcrypt.h>
2881 int main(void) {
2882   gcry_mac_hd_t handle;
2883   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
2884                 GCRY_MAC_FLAG_SECURE, NULL);
2885   return 0;
2886 }
2887 EOF
2888         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2889             gcrypt_hmac=yes
2890         fi
2891         cat > $TMPC << EOF
2892 #include <gcrypt.h>
2893 int main(void) {
2894   gcry_cipher_hd_t handle;
2895   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
2896   return 0;
2897 }
2898 EOF
2899         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
2900             gcrypt_xts=yes
2901             qemu_private_xts=no
2902         fi
2903     elif test "$gcrypt" = "yes"; then
2904         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
2905     else
2906         gcrypt="no"
2907     fi
2908 fi
2909
2910
2911 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
2912 then
2913     error_exit "Only one of gcrypt & nettle can be enabled"
2914 fi
2915
2916 ##########################################
2917 # libtasn1 - only for the TLS creds/session test suite
2918
2919 tasn1=yes
2920 tasn1_cflags=""
2921 tasn1_libs=""
2922 if $pkg_config --exists "libtasn1"; then
2923     tasn1_cflags=$($pkg_config --cflags libtasn1)
2924     tasn1_libs=$($pkg_config --libs libtasn1)
2925 else
2926     tasn1=no
2927 fi
2928
2929
2930 ##########################################
2931 # PAM probe
2932
2933 if test "$auth_pam" != "no"; then
2934     cat > $TMPC <<EOF
2935 #include <security/pam_appl.h>
2936 #include <stdio.h>
2937 int main(void) {
2938    const char *service_name = "qemu";
2939    const char *user = "frank";
2940    const struct pam_conv pam_conv = { 0 };
2941    pam_handle_t *pamh = NULL;
2942    pam_start(service_name, user, &pam_conv, &pamh);
2943    return 0;
2944 }
2945 EOF
2946     if compile_prog "" "-lpam" ; then
2947         auth_pam=yes
2948     else
2949         if test "$auth_pam" = "yes"; then
2950             feature_not_found "PAM" "Install PAM development package"
2951         else
2952             auth_pam=no
2953         fi
2954     fi
2955 fi
2956
2957 ##########################################
2958 # VTE probe
2959
2960 if test "$vte" != "no"; then
2961     vteminversion="0.32.0"
2962     if $pkg_config --exists "vte-2.91"; then
2963       vtepackage="vte-2.91"
2964     else
2965       vtepackage="vte-2.90"
2966     fi
2967     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
2968         vte_cflags=$($pkg_config --cflags $vtepackage)
2969         vte_libs=$($pkg_config --libs $vtepackage)
2970         vteversion=$($pkg_config --modversion $vtepackage)
2971         vte="yes"
2972     elif test "$vte" = "yes"; then
2973         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
2974     else
2975         vte="no"
2976     fi
2977 fi
2978
2979 ##########################################
2980 # RDMA needs OpenFabrics libraries
2981 if test "$rdma" != "no" ; then
2982   cat > $TMPC <<EOF
2983 #include <rdma/rdma_cma.h>
2984 int main(void) { return 0; }
2985 EOF
2986   rdma_libs="-lrdmacm -libverbs -libumad"
2987   if compile_prog "" "$rdma_libs" ; then
2988     rdma="yes"
2989   else
2990     if test "$rdma" = "yes" ; then
2991         error_exit \
2992             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
2993             " Your options:" \
2994             "  (1) Fast: Install infiniband packages (devel) from your distro." \
2995             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
2996             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
2997     fi
2998     rdma="no"
2999   fi
3000 fi
3001
3002 ##########################################
3003 # PVRDMA detection
3004
3005 cat > $TMPC <<EOF &&
3006 #include <sys/mman.h>
3007
3008 int
3009 main(void)
3010 {
3011     char buf = 0;
3012     void *addr = &buf;
3013     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3014
3015     return 0;
3016 }
3017 EOF
3018
3019 if test "$rdma" = "yes" ; then
3020     case "$pvrdma" in
3021     "")
3022         if compile_prog "" ""; then
3023             pvrdma="yes"
3024         else
3025             pvrdma="no"
3026         fi
3027         ;;
3028     "yes")
3029         if ! compile_prog "" ""; then
3030             error_exit "PVRDMA is not supported since mremap is not implemented"
3031         fi
3032         pvrdma="yes"
3033         ;;
3034     "no")
3035         pvrdma="no"
3036         ;;
3037     esac
3038 else
3039     if test "$pvrdma" = "yes" ; then
3040         error_exit "PVRDMA requires rdma suppport"
3041     fi
3042     pvrdma="no"
3043 fi
3044
3045 # Let's see if enhanced reg_mr is supported
3046 if test "$pvrdma" = "yes" ; then
3047
3048 cat > $TMPC <<EOF &&
3049 #include <infiniband/verbs.h>
3050
3051 int
3052 main(void)
3053 {
3054     struct ibv_mr *mr;
3055     struct ibv_pd *pd = NULL;
3056     size_t length = 10;
3057     uint64_t iova = 0;
3058     int access = 0;
3059     void *addr = NULL;
3060
3061     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3062
3063     ibv_dereg_mr(mr);
3064
3065     return 0;
3066 }
3067 EOF
3068     if ! compile_prog "" "-libverbs"; then
3069         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3070     fi
3071 fi
3072
3073 ##########################################
3074 # xfsctl() probe, used for file-posix.c
3075 if test "$xfs" != "no" ; then
3076   cat > $TMPC << EOF
3077 #include <stddef.h>  /* NULL */
3078 #include <xfs/xfs.h>
3079 int main(void)
3080 {
3081     xfsctl(NULL, 0, 0, NULL);
3082     return 0;
3083 }
3084 EOF
3085   if compile_prog "" "" ; then
3086     xfs="yes"
3087   else
3088     if test "$xfs" = "yes" ; then
3089       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3090     fi
3091     xfs=no
3092   fi
3093 fi
3094
3095 ##########################################
3096 # vde libraries probe
3097 if test "$vde" != "no" ; then
3098   vde_libs="-lvdeplug"
3099   cat > $TMPC << EOF
3100 #include <libvdeplug.h>
3101 int main(void)
3102 {
3103     struct vde_open_args a = {0, 0, 0};
3104     char s[] = "";
3105     vde_open(s, s, &a);
3106     return 0;
3107 }
3108 EOF
3109   if compile_prog "" "$vde_libs" ; then
3110     vde=yes
3111   else
3112     if test "$vde" = "yes" ; then
3113       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3114     fi
3115     vde=no
3116   fi
3117 fi
3118
3119 ##########################################
3120 # netmap support probe
3121 # Apart from looking for netmap headers, we make sure that the host API version
3122 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3123 # a minor/major version number. Minor new features will be marked with values up
3124 # to 15, and if something happens that requires a change to the backend we will
3125 # move above 15, submit the backend fixes and modify this two bounds.
3126 if test "$netmap" != "no" ; then
3127   cat > $TMPC << EOF
3128 #include <inttypes.h>
3129 #include <net/if.h>
3130 #include <net/netmap.h>
3131 #include <net/netmap_user.h>
3132 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3133 #error
3134 #endif
3135 int main(void) { return 0; }
3136 EOF
3137   if compile_prog "" "" ; then
3138     netmap=yes
3139   else
3140     if test "$netmap" = "yes" ; then
3141       feature_not_found "netmap"
3142     fi
3143     netmap=no
3144   fi
3145 fi
3146
3147 ##########################################
3148 # Sound support libraries probe
3149
3150 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3151 for drv in $audio_drv_list; do
3152     case $drv in
3153     alsa | try-alsa)
3154     if $pkg_config alsa --exists; then
3155         alsa_libs=$($pkg_config alsa --libs)
3156         alsa_cflags=$($pkg_config alsa --cflags)
3157         alsa=yes
3158         if test "$drv" = "try-alsa"; then
3159             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3160         fi
3161     else
3162         if test "$drv" = "try-alsa"; then
3163             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3164         else
3165             error_exit "$drv check failed" \
3166                 "Make sure to have the $drv libs and headers installed."
3167         fi
3168     fi
3169     ;;
3170
3171     pa | try-pa)
3172     if $pkg_config libpulse --exists; then
3173         libpulse=yes
3174         pulse_libs=$($pkg_config libpulse --libs)
3175         pulse_cflags=$($pkg_config libpulse --cflags)
3176         if test "$drv" = "try-pa"; then
3177             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3178         fi
3179     else
3180         if test "$drv" = "try-pa"; then
3181             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3182         else
3183             error_exit "$drv check failed" \
3184                 "Make sure to have the $drv libs and headers installed."
3185         fi
3186     fi
3187     ;;
3188
3189     sdl)
3190     if test "$sdl" = "no"; then
3191         error_exit "sdl not found or disabled, can not use sdl audio driver"
3192     fi
3193     ;;
3194
3195     try-sdl)
3196     if test "$sdl" = "no"; then
3197         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3198     else
3199         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3200     fi
3201     ;;
3202
3203     coreaudio)
3204       coreaudio_libs="-framework CoreAudio"
3205     ;;
3206
3207     dsound)
3208       dsound_libs="-lole32 -ldxguid"
3209       audio_win_int="yes"
3210     ;;
3211
3212     oss)
3213       oss_libs="$oss_lib"
3214     ;;
3215
3216     jack | try-jack)
3217     if $pkg_config jack --exists; then
3218         libjack=yes
3219         jack_libs=$($pkg_config jack --libs)
3220         if test "$drv" = "try-jack"; then
3221             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3222         fi
3223     else
3224         if test "$drv" = "try-jack"; then
3225             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3226         else
3227             error_exit "$drv check failed" \
3228                 "Make sure to have the $drv libs and headers installed."
3229         fi
3230     fi
3231     ;;
3232
3233     *)
3234     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3235         error_exit "Unknown driver '$drv' selected" \
3236             "Possible drivers are: $audio_possible_drivers"
3237     }
3238     ;;
3239     esac
3240 done
3241
3242 ##########################################
3243 # glib support probe
3244
3245 glib_req_ver=2.48
3246 glib_modules=gthread-2.0
3247 if test "$modules" = yes; then
3248     glib_modules="$glib_modules gmodule-export-2.0"
3249 fi
3250 if test "$plugins" = yes; then
3251     glib_modules="$glib_modules gmodule-2.0"
3252 fi
3253
3254 for i in $glib_modules; do
3255     if $pkg_config --atleast-version=$glib_req_ver $i; then
3256         glib_cflags=$($pkg_config --cflags $i)
3257         glib_libs=$($pkg_config --libs $i)
3258     else
3259         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3260     fi
3261 done
3262
3263 # This workaround is required due to a bug in pkg-config file for glib as it
3264 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3265
3266 if test "$static" = yes && test "$mingw32" = yes; then
3267     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3268 fi
3269
3270 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3271     gio_cflags=$($pkg_config --cflags gio-2.0)
3272     gio_libs=$($pkg_config --libs gio-2.0)
3273     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3274     if [ ! -x "$gdbus_codegen" ]; then
3275         gdbus_codegen=
3276     fi
3277     # Check that the libraries actually work -- Ubuntu 18.04 ships
3278     # with pkg-config --static --libs data for gio-2.0 that is missing
3279     # -lblkid and will give a link error.
3280     cat > $TMPC <<EOF
3281 #include <gio/gio.h>
3282 int main(void)
3283 {
3284     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3285     return 0;
3286 }
3287 EOF
3288     if compile_prog "$gio_cflags" "$gio_libs" ; then
3289         gio=yes
3290     else
3291         gio=no
3292     fi
3293 else
3294     gio=no
3295 fi
3296
3297 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3298     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3299     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3300 fi
3301
3302 # Sanity check that the current size_t matches the
3303 # size that glib thinks it should be. This catches
3304 # problems on multi-arch where people try to build
3305 # 32-bit QEMU while pointing at 64-bit glib headers
3306 cat > $TMPC <<EOF
3307 #include <glib.h>
3308 #include <unistd.h>
3309
3310 #define QEMU_BUILD_BUG_ON(x) \
3311   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3312
3313 int main(void) {
3314    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3315    return 0;
3316 }
3317 EOF
3318
3319 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3320     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3321                "You probably need to set PKG_CONFIG_LIBDIR"\
3322                "to point to the right pkg-config files for your"\
3323                "build target"
3324 fi
3325
3326 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3327 cat > $TMPC << EOF
3328 #include <glib.h>
3329 int main(void) { return 0; }
3330 EOF
3331 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3332     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3333         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3334         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3335     fi
3336 fi
3337
3338 # Silence clang warnings triggered by glib < 2.57.2
3339 cat > $TMPC << EOF
3340 #include <glib.h>
3341 typedef struct Foo {
3342     int i;
3343 } Foo;
3344 static void foo_free(Foo *f)
3345 {
3346     g_free(f);
3347 }
3348 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3349 int main(void) { return 0; }
3350 EOF
3351 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3352     if cc_has_warning_flag "-Wno-unused-function"; then
3353         glib_cflags="$glib_cflags -Wno-unused-function"
3354         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3355     fi
3356 fi
3357
3358 ##########################################
3359 # SHA command probe for modules
3360 if test "$modules" = yes; then
3361     shacmd_probe="sha1sum sha1 shasum"
3362     for c in $shacmd_probe; do
3363         if has $c; then
3364             shacmd="$c"
3365             break
3366         fi
3367     done
3368     if test "$shacmd" = ""; then
3369         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3370     fi
3371 fi
3372
3373 ##########################################
3374 # pthread probe
3375 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3376
3377 pthread=no
3378 cat > $TMPC << EOF
3379 #include <pthread.h>
3380 static void *f(void *p) { return NULL; }
3381 int main(void) {
3382   pthread_t thread;
3383   pthread_create(&thread, 0, f, 0);
3384   return 0;
3385 }
3386 EOF
3387 if compile_prog "" "" ; then
3388   pthread=yes
3389 else
3390   for pthread_lib in $PTHREADLIBS_LIST; do
3391     if compile_prog "" "$pthread_lib" ; then
3392       pthread=yes
3393       found=no
3394       for lib_entry in $LIBS; do
3395         if test "$lib_entry" = "$pthread_lib"; then
3396           found=yes
3397           break
3398         fi
3399       done
3400       if test "$found" = "no"; then
3401         LIBS="$pthread_lib $LIBS"
3402       fi
3403       break
3404     fi
3405   done
3406 fi
3407
3408 if test "$mingw32" != yes && test "$pthread" = no; then
3409   error_exit "pthread check failed" \
3410       "Make sure to have the pthread libs and headers installed."
3411 fi
3412
3413 # check for pthread_setname_np with thread id
3414 pthread_setname_np_w_tid=no
3415 cat > $TMPC << EOF
3416 #include <pthread.h>
3417
3418 static void *f(void *p) { return NULL; }
3419 int main(void)
3420 {
3421     pthread_t thread;
3422     pthread_create(&thread, 0, f, 0);
3423     pthread_setname_np(thread, "QEMU");
3424     return 0;
3425 }
3426 EOF
3427 if compile_prog "" "$pthread_lib" ; then
3428   pthread_setname_np_w_tid=yes
3429 fi
3430
3431 # check for pthread_setname_np without thread id
3432 pthread_setname_np_wo_tid=no
3433 cat > $TMPC << EOF
3434 #include <pthread.h>
3435
3436 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3437 int main(void)
3438 {
3439     pthread_t thread;
3440     pthread_create(&thread, 0, f, 0);
3441     return 0;
3442 }
3443 EOF
3444 if compile_prog "" "$pthread_lib" ; then
3445   pthread_setname_np_wo_tid=yes
3446 fi
3447
3448 ##########################################
3449 # libssh probe
3450 if test "$libssh" != "no" ; then
3451   if $pkg_config --exists libssh; then
3452     libssh_cflags=$($pkg_config libssh --cflags)
3453     libssh_libs=$($pkg_config libssh --libs)
3454     libssh=yes
3455   else
3456     if test "$libssh" = "yes" ; then
3457       error_exit "libssh required for --enable-libssh"
3458     fi
3459     libssh=no
3460   fi
3461 fi
3462
3463 ##########################################
3464 # Check for libssh 0.8
3465 # This is done like this instead of using the LIBSSH_VERSION_* and
3466 # SSH_VERSION_* macros because some distributions in the past shipped
3467 # snapshots of the future 0.8 from Git, and those snapshots did not
3468 # have updated version numbers (still referring to 0.7.0).
3469
3470 if test "$libssh" = "yes"; then
3471   cat > $TMPC <<EOF
3472 #include <libssh/libssh.h>
3473 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3474 EOF
3475   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3476     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3477   fi
3478 fi
3479
3480 ##########################################
3481 # linux-aio probe
3482
3483 if test "$linux_aio" != "no" ; then
3484   cat > $TMPC <<EOF
3485 #include <libaio.h>
3486 #include <sys/eventfd.h>
3487 #include <stddef.h>
3488 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3489 EOF
3490   if compile_prog "" "-laio" ; then
3491     linux_aio=yes
3492   else
3493     if test "$linux_aio" = "yes" ; then
3494       feature_not_found "linux AIO" "Install libaio devel"
3495     fi
3496     linux_aio=no
3497   fi
3498 fi
3499 ##########################################
3500 # linux-io-uring probe
3501
3502 if test "$linux_io_uring" != "no" ; then
3503   if $pkg_config liburing; then
3504     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3505     linux_io_uring_libs=$($pkg_config --libs liburing)
3506     linux_io_uring=yes
3507   else
3508     if test "$linux_io_uring" = "yes" ; then
3509       feature_not_found "linux io_uring" "Install liburing devel"
3510     fi
3511     linux_io_uring=no
3512   fi
3513 fi
3514
3515 ##########################################
3516 # TPM emulation is only on POSIX
3517
3518 if test "$tpm" = ""; then
3519   if test "$mingw32" = "yes"; then
3520     tpm=no
3521   else
3522     tpm=yes
3523   fi
3524 elif test "$tpm" = "yes"; then
3525   if test "$mingw32" = "yes" ; then
3526     error_exit "TPM emulation only available on POSIX systems"
3527   fi
3528 fi
3529
3530 ##########################################
3531 # iovec probe
3532 cat > $TMPC <<EOF
3533 #include <sys/types.h>
3534 #include <sys/uio.h>
3535 #include <unistd.h>
3536 int main(void) { return sizeof(struct iovec); }
3537 EOF
3538 iovec=no
3539 if compile_prog "" "" ; then
3540   iovec=yes
3541 fi
3542
3543 ##########################################
3544 # preadv probe
3545 cat > $TMPC <<EOF
3546 #include <sys/types.h>
3547 #include <sys/uio.h>
3548 #include <unistd.h>
3549 int main(void) { return preadv(0, 0, 0, 0); }
3550 EOF
3551 preadv=no
3552 if compile_prog "" "" ; then
3553   preadv=yes
3554 fi
3555
3556 ##########################################
3557 # fdt probe
3558
3559 case "$fdt" in
3560   auto | enabled | internal)
3561     # Simpler to always update submodule, even if not needed.
3562     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3563       git_submodules="${git_submodules} dtc"
3564     fi
3565     ;;
3566 esac
3567
3568 ##########################################
3569 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3570
3571 gbm="no"
3572 if $pkg_config gbm; then
3573     gbm_cflags="$($pkg_config --cflags gbm)"
3574     gbm_libs="$($pkg_config --libs gbm)"
3575     gbm="yes"
3576 fi
3577
3578 if test "$opengl" != "no" ; then
3579   opengl_pkgs="epoxy gbm"
3580   if $pkg_config $opengl_pkgs; then
3581     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3582     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3583     opengl=yes
3584   else
3585     if test "$opengl" = "yes" ; then
3586       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3587     fi
3588     opengl_cflags=""
3589     opengl_libs=""
3590     opengl=no
3591   fi
3592 fi
3593
3594 if test "$opengl" = "yes"; then
3595   cat > $TMPC << EOF
3596 #include <epoxy/egl.h>
3597 #ifndef EGL_MESA_image_dma_buf_export
3598 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3599 #endif
3600 int main(void) { return 0; }
3601 EOF
3602   if compile_prog "" "" ; then
3603     opengl_dmabuf=yes
3604   fi
3605 fi
3606
3607 ##########################################
3608 # libxml2 probe
3609 if test "$libxml2" != "no" ; then
3610     if $pkg_config --exists libxml-2.0; then
3611         libxml2="yes"
3612         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3613         libxml2_libs=$($pkg_config --libs libxml-2.0)
3614     else
3615         if test "$libxml2" = "yes"; then
3616             feature_not_found "libxml2" "Install libxml2 devel"
3617         fi
3618         libxml2="no"
3619     fi
3620 fi
3621
3622 # Check for inotify functions when we are building linux-user
3623 # emulator.  This is done because older glibc versions don't
3624 # have syscall stubs for these implemented.  In that case we
3625 # don't provide them even if kernel supports them.
3626 #
3627 inotify=no
3628 cat > $TMPC << EOF
3629 #include <sys/inotify.h>
3630
3631 int
3632 main(void)
3633 {
3634         /* try to start inotify */
3635         return inotify_init();
3636 }
3637 EOF
3638 if compile_prog "" "" ; then
3639   inotify=yes
3640 fi
3641
3642 inotify1=no
3643 cat > $TMPC << EOF
3644 #include <sys/inotify.h>
3645
3646 int
3647 main(void)
3648 {
3649     /* try to start inotify */
3650     return inotify_init1(0);
3651 }
3652 EOF
3653 if compile_prog "" "" ; then
3654   inotify1=yes
3655 fi
3656
3657 # check if pipe2 is there
3658 pipe2=no
3659 cat > $TMPC << EOF
3660 #include <unistd.h>
3661 #include <fcntl.h>
3662
3663 int main(void)
3664 {
3665     int pipefd[2];
3666     return pipe2(pipefd, O_CLOEXEC);
3667 }
3668 EOF
3669 if compile_prog "" "" ; then
3670   pipe2=yes
3671 fi
3672
3673 # check if accept4 is there
3674 accept4=no
3675 cat > $TMPC << EOF
3676 #include <sys/socket.h>
3677 #include <stddef.h>
3678
3679 int main(void)
3680 {
3681     accept4(0, NULL, NULL, SOCK_CLOEXEC);
3682     return 0;
3683 }
3684 EOF
3685 if compile_prog "" "" ; then
3686   accept4=yes
3687 fi
3688
3689 # check if tee/splice is there. vmsplice was added same time.
3690 splice=no
3691 cat > $TMPC << EOF
3692 #include <unistd.h>
3693 #include <fcntl.h>
3694 #include <limits.h>
3695
3696 int main(void)
3697 {
3698     int len, fd = 0;
3699     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3700     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3701     return 0;
3702 }
3703 EOF
3704 if compile_prog "" "" ; then
3705   splice=yes
3706 fi
3707
3708 ##########################################
3709 # libnuma probe
3710
3711 if test "$numa" != "no" ; then
3712   cat > $TMPC << EOF
3713 #include <numa.h>
3714 int main(void) { return numa_available(); }
3715 EOF
3716
3717   if compile_prog "" "-lnuma" ; then
3718     numa=yes
3719     numa_libs="-lnuma"
3720   else
3721     if test "$numa" = "yes" ; then
3722       feature_not_found "numa" "install numactl devel"
3723     fi
3724     numa=no
3725   fi
3726 fi
3727
3728 malloc=system
3729 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
3730     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
3731     exit 1
3732 elif test "$tcmalloc" = "yes" ; then
3733     malloc=tcmalloc
3734 elif test "$jemalloc" = "yes" ; then
3735     malloc=jemalloc
3736 fi
3737
3738 ##########################################
3739 # signalfd probe
3740 signalfd="no"
3741 cat > $TMPC << EOF
3742 #include <unistd.h>
3743 #include <sys/syscall.h>
3744 #include <signal.h>
3745 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3746 EOF
3747
3748 if compile_prog "" "" ; then
3749   signalfd=yes
3750 fi
3751
3752 # check if optreset global is declared by <getopt.h>
3753 optreset="no"
3754 cat > $TMPC << EOF
3755 #include <getopt.h>
3756 int main(void) { return optreset; }
3757 EOF
3758
3759 if compile_prog "" "" ; then
3760   optreset=yes
3761 fi
3762
3763 # check if eventfd is supported
3764 eventfd=no
3765 cat > $TMPC << EOF
3766 #include <sys/eventfd.h>
3767
3768 int main(void)
3769 {
3770     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3771 }
3772 EOF
3773 if compile_prog "" "" ; then
3774   eventfd=yes
3775 fi
3776
3777 # check if memfd is supported
3778 memfd=no
3779 cat > $TMPC << EOF
3780 #include <sys/mman.h>
3781
3782 int main(void)
3783 {
3784     return memfd_create("foo", MFD_ALLOW_SEALING);
3785 }
3786 EOF
3787 if compile_prog "" "" ; then
3788   memfd=yes
3789 fi
3790
3791 # check for usbfs
3792 have_usbfs=no
3793 if test "$linux_user" = "yes"; then
3794   cat > $TMPC << EOF
3795 #include <linux/usbdevice_fs.h>
3796
3797 #ifndef USBDEVFS_GET_CAPABILITIES
3798 #error "USBDEVFS_GET_CAPABILITIES undefined"
3799 #endif
3800
3801 #ifndef USBDEVFS_DISCONNECT_CLAIM
3802 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
3803 #endif
3804
3805 int main(void)
3806 {
3807     return 0;
3808 }
3809 EOF
3810   if compile_prog "" ""; then
3811     have_usbfs=yes
3812   fi
3813 fi
3814
3815 # check for fallocate
3816 fallocate=no
3817 cat > $TMPC << EOF
3818 #include <fcntl.h>
3819
3820 int main(void)
3821 {
3822     fallocate(0, 0, 0, 0);
3823     return 0;
3824 }
3825 EOF
3826 if compile_prog "" "" ; then
3827   fallocate=yes
3828 fi
3829
3830 # check for fallocate hole punching
3831 fallocate_punch_hole=no
3832 cat > $TMPC << EOF
3833 #include <fcntl.h>
3834 #include <linux/falloc.h>
3835
3836 int main(void)
3837 {
3838     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3839     return 0;
3840 }
3841 EOF
3842 if compile_prog "" "" ; then
3843   fallocate_punch_hole=yes
3844 fi
3845
3846 # check that fallocate supports range zeroing inside the file
3847 fallocate_zero_range=no
3848 cat > $TMPC << EOF
3849 #include <fcntl.h>
3850 #include <linux/falloc.h>
3851
3852 int main(void)
3853 {
3854     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3855     return 0;
3856 }
3857 EOF
3858 if compile_prog "" "" ; then
3859   fallocate_zero_range=yes
3860 fi
3861
3862 # check for posix_fallocate
3863 posix_fallocate=no
3864 cat > $TMPC << EOF
3865 #include <fcntl.h>
3866
3867 int main(void)
3868 {
3869     posix_fallocate(0, 0, 0);
3870     return 0;
3871 }
3872 EOF
3873 if compile_prog "" "" ; then
3874     posix_fallocate=yes
3875 fi
3876
3877 # check for sync_file_range
3878 sync_file_range=no
3879 cat > $TMPC << EOF
3880 #include <fcntl.h>
3881
3882 int main(void)
3883 {
3884     sync_file_range(0, 0, 0, 0);
3885     return 0;
3886 }
3887 EOF
3888 if compile_prog "" "" ; then
3889   sync_file_range=yes
3890 fi
3891
3892 # check for linux/fiemap.h and FS_IOC_FIEMAP
3893 fiemap=no
3894 cat > $TMPC << EOF
3895 #include <sys/ioctl.h>
3896 #include <linux/fs.h>
3897 #include <linux/fiemap.h>
3898
3899 int main(void)
3900 {
3901     ioctl(0, FS_IOC_FIEMAP, 0);
3902     return 0;
3903 }
3904 EOF
3905 if compile_prog "" "" ; then
3906   fiemap=yes
3907 fi
3908
3909 # check for dup3
3910 dup3=no
3911 cat > $TMPC << EOF
3912 #include <unistd.h>
3913
3914 int main(void)
3915 {
3916     dup3(0, 0, 0);
3917     return 0;
3918 }
3919 EOF
3920 if compile_prog "" "" ; then
3921   dup3=yes
3922 fi
3923
3924 # check for ppoll support
3925 ppoll=no
3926 cat > $TMPC << EOF
3927 #include <poll.h>
3928
3929 int main(void)
3930 {
3931     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3932     ppoll(&pfd, 1, 0, 0);
3933     return 0;
3934 }
3935 EOF
3936 if compile_prog "" "" ; then
3937   ppoll=yes
3938 fi
3939
3940 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3941 prctl_pr_set_timerslack=no
3942 cat > $TMPC << EOF
3943 #include <sys/prctl.h>
3944
3945 int main(void)
3946 {
3947     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3948     return 0;
3949 }
3950 EOF
3951 if compile_prog "" "" ; then
3952   prctl_pr_set_timerslack=yes
3953 fi
3954
3955 # check for epoll support
3956 epoll=no
3957 cat > $TMPC << EOF
3958 #include <sys/epoll.h>
3959
3960 int main(void)
3961 {
3962     epoll_create(0);
3963     return 0;
3964 }
3965 EOF
3966 if compile_prog "" "" ; then
3967   epoll=yes
3968 fi
3969
3970 # epoll_create1 is a later addition
3971 # so we must check separately for its presence
3972 epoll_create1=no
3973 cat > $TMPC << EOF
3974 #include <sys/epoll.h>
3975
3976 int main(void)
3977 {
3978     /* Note that we use epoll_create1 as a value, not as
3979      * a function being called. This is necessary so that on
3980      * old SPARC glibc versions where the function was present in
3981      * the library but not declared in the header file we will
3982      * fail the configure check. (Otherwise we will get a compiler
3983      * warning but not an error, and will proceed to fail the
3984      * qemu compile where we compile with -Werror.)
3985      */
3986     return (int)(uintptr_t)&epoll_create1;
3987 }
3988 EOF
3989 if compile_prog "" "" ; then
3990   epoll_create1=yes
3991 fi
3992
3993 # check for sendfile support
3994 sendfile=no
3995 cat > $TMPC << EOF
3996 #include <sys/sendfile.h>
3997
3998 int main(void)
3999 {
4000     return sendfile(0, 0, 0, 0);
4001 }
4002 EOF
4003 if compile_prog "" "" ; then
4004   sendfile=yes
4005 fi
4006
4007 # check for timerfd support (glibc 2.8 and newer)
4008 timerfd=no
4009 cat > $TMPC << EOF
4010 #include <sys/timerfd.h>
4011
4012 int main(void)
4013 {
4014     return(timerfd_create(CLOCK_REALTIME, 0));
4015 }
4016 EOF
4017 if compile_prog "" "" ; then
4018   timerfd=yes
4019 fi
4020
4021 # check for setns and unshare support
4022 setns=no
4023 cat > $TMPC << EOF
4024 #include <sched.h>
4025
4026 int main(void)
4027 {
4028     int ret;
4029     ret = setns(0, 0);
4030     ret = unshare(0);
4031     return ret;
4032 }
4033 EOF
4034 if compile_prog "" "" ; then
4035   setns=yes
4036 fi
4037
4038 # clock_adjtime probe
4039 clock_adjtime=no
4040 cat > $TMPC <<EOF
4041 #include <time.h>
4042
4043 int main(void)
4044 {
4045     return clock_adjtime(0, 0);
4046 }
4047 EOF
4048 clock_adjtime=no
4049 if compile_prog "" "" ; then
4050   clock_adjtime=yes
4051 fi
4052
4053 # syncfs probe
4054 syncfs=no
4055 cat > $TMPC <<EOF
4056 #include <unistd.h>
4057
4058 int main(void)
4059 {
4060     return syncfs(0);
4061 }
4062 EOF
4063 syncfs=no
4064 if compile_prog "" "" ; then
4065   syncfs=yes
4066 fi
4067
4068 # Search for bswap_32 function
4069 byteswap_h=no
4070 cat > $TMPC << EOF
4071 #include <byteswap.h>
4072 int main(void) { return bswap_32(0); }
4073 EOF
4074 if compile_prog "" "" ; then
4075   byteswap_h=yes
4076 fi
4077
4078 # Search for bswap32 function
4079 bswap_h=no
4080 cat > $TMPC << EOF
4081 #include <sys/endian.h>
4082 #include <sys/types.h>
4083 #include <machine/bswap.h>
4084 int main(void) { return bswap32(0); }
4085 EOF
4086 if compile_prog "" "" ; then
4087   bswap_h=yes
4088 fi
4089
4090 ##########################################
4091 # Do we need librt
4092 # uClibc provides 2 versions of clock_gettime(), one with realtime
4093 # support and one without. This means that the clock_gettime() don't
4094 # need -lrt. We still need it for timer_create() so we check for this
4095 # function in addition.
4096 cat > $TMPC <<EOF
4097 #include <signal.h>
4098 #include <time.h>
4099 int main(void) {
4100   timer_create(CLOCK_REALTIME, NULL, NULL);
4101   return clock_gettime(CLOCK_REALTIME, NULL);
4102 }
4103 EOF
4104
4105 if compile_prog "" "" ; then
4106   :
4107 # we need pthread for static linking. use previous pthread test result
4108 elif compile_prog "" "$pthread_lib -lrt" ; then
4109   LIBS="$LIBS -lrt"
4110 fi
4111
4112 # Check whether we have openpty() in either libc or libutil
4113 cat > $TMPC << EOF
4114 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4115 int main(void) { return openpty(0, 0, 0, 0, 0); }
4116 EOF
4117
4118 have_openpty="no"
4119 if compile_prog "" "" ; then
4120   have_openpty="yes"
4121 else
4122   if compile_prog "" "-lutil" ; then
4123     have_openpty="yes"
4124   fi
4125 fi
4126
4127 ##########################################
4128 # spice probe
4129 if test "$spice" != "no" ; then
4130   cat > $TMPC << EOF
4131 #include <spice.h>
4132 int main(void) { spice_server_new(); return 0; }
4133 EOF
4134   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4135   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4136   if $pkg_config --atleast-version=0.12.5 spice-server && \
4137      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4138      compile_prog "$spice_cflags" "$spice_libs" ; then
4139     spice="yes"
4140   else
4141     if test "$spice" = "yes" ; then
4142       feature_not_found "spice" \
4143           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4144     fi
4145     spice="no"
4146   fi
4147 fi
4148
4149 # check for smartcard support
4150 if test "$smartcard" != "no"; then
4151     if $pkg_config --atleast-version=2.5.1 libcacard; then
4152         libcacard_cflags=$($pkg_config --cflags libcacard)
4153         libcacard_libs=$($pkg_config --libs libcacard)
4154         smartcard="yes"
4155     else
4156         if test "$smartcard" = "yes"; then
4157             feature_not_found "smartcard" "Install libcacard devel"
4158         fi
4159         smartcard="no"
4160     fi
4161 fi
4162
4163 # check for libusb
4164 if test "$libusb" != "no" ; then
4165     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4166         libusb="yes"
4167         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4168         libusb_libs=$($pkg_config --libs libusb-1.0)
4169     else
4170         if test "$libusb" = "yes"; then
4171             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4172         fi
4173         libusb="no"
4174     fi
4175 fi
4176
4177 # check for usbredirparser for usb network redirection support
4178 if test "$usb_redir" != "no" ; then
4179     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4180         usb_redir="yes"
4181         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4182         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4183     else
4184         if test "$usb_redir" = "yes"; then
4185             feature_not_found "usb-redir" "Install usbredir devel"
4186         fi
4187         usb_redir="no"
4188     fi
4189 fi
4190
4191 ##########################################
4192 # check if we have VSS SDK headers for win
4193
4194 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4195         test "$vss_win32_sdk" != "no" ; then
4196   case "$vss_win32_sdk" in
4197     "")   vss_win32_include="-isystem $source_path" ;;
4198     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4199           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4200           vss_win32_include="-isystem $source_path/.sdk/vss"
4201           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4202           ;;
4203     *)    vss_win32_include="-isystem $vss_win32_sdk"
4204   esac
4205   cat > $TMPC << EOF
4206 #define __MIDL_user_allocate_free_DEFINED__
4207 #include <inc/win2003/vss.h>
4208 int main(void) { return VSS_CTX_BACKUP; }
4209 EOF
4210   if compile_prog "$vss_win32_include" "" ; then
4211     guest_agent_with_vss="yes"
4212     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4213     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4214     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4215   else
4216     if test "$vss_win32_sdk" != "" ; then
4217       echo "ERROR: Please download and install Microsoft VSS SDK:"
4218       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4219       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4220       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4221       echo "ERROR: The headers are extracted in the directory \`inc'."
4222       feature_not_found "VSS support"
4223     fi
4224     guest_agent_with_vss="no"
4225   fi
4226 fi
4227
4228 ##########################################
4229 # lookup Windows platform SDK (if not specified)
4230 # The SDK is needed only to build .tlb (type library) file of guest agent
4231 # VSS provider from the source. It is usually unnecessary because the
4232 # pre-compiled .tlb file is included.
4233
4234 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4235         test "$guest_agent_with_vss" = "yes" ; then
4236   if test -z "$win_sdk"; then
4237     programfiles="$PROGRAMFILES"
4238     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4239     if test -n "$programfiles"; then
4240       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4241     else
4242       feature_not_found "Windows SDK"
4243     fi
4244   elif test "$win_sdk" = "no"; then
4245     win_sdk=""
4246   fi
4247 fi
4248
4249 ##########################################
4250 # check if mingw environment provides a recent ntddscsi.h
4251 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4252   cat > $TMPC << EOF
4253 #include <windows.h>
4254 #include <ntddscsi.h>
4255 int main(void) {
4256 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4257 #error Missing required ioctl definitions
4258 #endif
4259   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4260   return addr.Lun;
4261 }
4262 EOF
4263   if compile_prog "" "" ; then
4264     guest_agent_ntddscsi=yes
4265     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4266   fi
4267 fi
4268
4269 ##########################################
4270 # virgl renderer probe
4271
4272 if test "$virglrenderer" != "no" ; then
4273   cat > $TMPC << EOF
4274 #include <virglrenderer.h>
4275 int main(void) { virgl_renderer_poll(); return 0; }
4276 EOF
4277   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4278   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4279   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4280   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4281      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4282     virglrenderer="yes"
4283   else
4284     if test "$virglrenderer" = "yes" ; then
4285       feature_not_found "virglrenderer"
4286     fi
4287     virglrenderer="no"
4288   fi
4289 fi
4290
4291 ##########################################
4292 # capstone
4293
4294 case "$capstone" in
4295   auto | enabled | internal)
4296     # Simpler to always update submodule, even if not needed.
4297     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4298       git_submodules="${git_submodules} capstone"
4299     fi
4300     ;;
4301 esac
4302
4303 ##########################################
4304 # check if we have fdatasync
4305
4306 fdatasync=no
4307 cat > $TMPC << EOF
4308 #include <unistd.h>
4309 int main(void) {
4310 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4311 return fdatasync(0);
4312 #else
4313 #error Not supported
4314 #endif
4315 }
4316 EOF
4317 if compile_prog "" "" ; then
4318     fdatasync=yes
4319 fi
4320
4321 ##########################################
4322 # check if we have madvise
4323
4324 madvise=no
4325 cat > $TMPC << EOF
4326 #include <sys/types.h>
4327 #include <sys/mman.h>
4328 #include <stddef.h>
4329 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4330 EOF
4331 if compile_prog "" "" ; then
4332     madvise=yes
4333 fi
4334
4335 ##########################################
4336 # check if we have posix_madvise
4337
4338 posix_madvise=no
4339 cat > $TMPC << EOF
4340 #include <sys/mman.h>
4341 #include <stddef.h>
4342 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4343 EOF
4344 if compile_prog "" "" ; then
4345     posix_madvise=yes
4346 fi
4347
4348 ##########################################
4349 # check if we have posix_memalign()
4350
4351 posix_memalign=no
4352 cat > $TMPC << EOF
4353 #include <stdlib.h>
4354 int main(void) {
4355     void *p;
4356     return posix_memalign(&p, 8, 8);
4357 }
4358 EOF
4359 if compile_prog "" "" ; then
4360     posix_memalign=yes
4361 fi
4362
4363 ##########################################
4364 # check if we have posix_syslog
4365
4366 posix_syslog=no
4367 cat > $TMPC << EOF
4368 #include <syslog.h>
4369 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4370 EOF
4371 if compile_prog "" "" ; then
4372     posix_syslog=yes
4373 fi
4374
4375 ##########################################
4376 # check if we have sem_timedwait
4377
4378 sem_timedwait=no
4379 cat > $TMPC << EOF
4380 #include <semaphore.h>
4381 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4382 EOF
4383 if compile_prog "" "" ; then
4384     sem_timedwait=yes
4385 fi
4386
4387 ##########################################
4388 # check if we have strchrnul
4389
4390 strchrnul=no
4391 cat > $TMPC << EOF
4392 #include <string.h>
4393 int main(void);
4394 // Use a haystack that the compiler shouldn't be able to constant fold
4395 char *haystack = (char*)&main;
4396 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4397 EOF
4398 if compile_prog "" "" ; then
4399     strchrnul=yes
4400 fi
4401
4402 #########################################
4403 # check if we have st_atim
4404
4405 st_atim=no
4406 cat > $TMPC << EOF
4407 #include <sys/stat.h>
4408 #include <stddef.h>
4409 int main(void) { return offsetof(struct stat, st_atim); }
4410 EOF
4411 if compile_prog "" "" ; then
4412     st_atim=yes
4413 fi
4414
4415 ##########################################
4416 # check if trace backend exists
4417
4418 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4419 if test "$?" -ne 0 ; then
4420   error_exit "invalid trace backends" \
4421       "Please choose supported trace backends."
4422 fi
4423
4424 ##########################################
4425 # For 'ust' backend, test if ust headers are present
4426 if have_backend "ust"; then
4427   cat > $TMPC << EOF
4428 #include <lttng/tracepoint.h>
4429 int main(void) { return 0; }
4430 EOF
4431   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4432     if $pkg_config lttng-ust --exists; then
4433       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4434     else
4435       lttng_ust_libs="-llttng-ust -ldl"
4436     fi
4437     if $pkg_config liburcu-bp --exists; then
4438       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4439     else
4440       urcu_bp_libs="-lurcu-bp"
4441     fi
4442   else
4443     error_exit "Trace backend 'ust' missing lttng-ust header files"
4444   fi
4445 fi
4446
4447 ##########################################
4448 # For 'dtrace' backend, test if 'dtrace' command is present
4449 if have_backend "dtrace"; then
4450   if ! has 'dtrace' ; then
4451     error_exit "dtrace command is not found in PATH $PATH"
4452   fi
4453   trace_backend_stap="no"
4454   if has 'stap' ; then
4455     trace_backend_stap="yes"
4456
4457     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4458     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4459     # instead. QEMU --enable-modules depends on this because the SystemTap
4460     # semaphores are linked into the main binary and not the module's shared
4461     # object.
4462     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4463   fi
4464 fi
4465
4466 ##########################################
4467 # check and set a backend for coroutine
4468
4469 # We prefer ucontext, but it's not always possible. The fallback
4470 # is sigcontext. On Windows the only valid backend is the Windows
4471 # specific one.
4472
4473 ucontext_works=no
4474 if test "$darwin" != "yes"; then
4475   cat > $TMPC << EOF
4476 #include <ucontext.h>
4477 #ifdef __stub_makecontext
4478 #error Ignoring glibc stub makecontext which will always fail
4479 #endif
4480 int main(void) { makecontext(0, 0, 0); return 0; }
4481 EOF
4482   if compile_prog "" "" ; then
4483     ucontext_works=yes
4484   fi
4485 fi
4486
4487 if test "$coroutine" = ""; then
4488   if test "$mingw32" = "yes"; then
4489     coroutine=win32
4490   elif test "$ucontext_works" = "yes"; then
4491     coroutine=ucontext
4492   else
4493     coroutine=sigaltstack
4494   fi
4495 else
4496   case $coroutine in
4497   windows)
4498     if test "$mingw32" != "yes"; then
4499       error_exit "'windows' coroutine backend only valid for Windows"
4500     fi
4501     # Unfortunately the user visible backend name doesn't match the
4502     # coroutine-*.c filename for this case, so we have to adjust it here.
4503     coroutine=win32
4504     ;;
4505   ucontext)
4506     if test "$ucontext_works" != "yes"; then
4507       feature_not_found "ucontext"
4508     fi
4509     ;;
4510   sigaltstack)
4511     if test "$mingw32" = "yes"; then
4512       error_exit "only the 'windows' coroutine backend is valid for Windows"
4513     fi
4514     ;;
4515   *)
4516     error_exit "unknown coroutine backend $coroutine"
4517     ;;
4518   esac
4519 fi
4520
4521 if test "$coroutine_pool" = ""; then
4522   coroutine_pool=yes
4523 fi
4524
4525 if test "$debug_stack_usage" = "yes"; then
4526   if test "$coroutine_pool" = "yes"; then
4527     echo "WARN: disabling coroutine pool for stack usage debugging"
4528     coroutine_pool=no
4529   fi
4530 fi
4531
4532 ##################################################
4533 # SafeStack
4534
4535
4536 if test "$safe_stack" = "yes"; then
4537 cat > $TMPC << EOF
4538 int main(int argc, char *argv[])
4539 {
4540 #if ! __has_feature(safe_stack)
4541 #error SafeStack Disabled
4542 #endif
4543     return 0;
4544 }
4545 EOF
4546   flag="-fsanitize=safe-stack"
4547   # Check that safe-stack is supported and enabled.
4548   if compile_prog "-Werror $flag" "$flag"; then
4549     # Flag needed both at compilation and at linking
4550     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4551     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4552   else
4553     error_exit "SafeStack not supported by your compiler"
4554   fi
4555   if test "$coroutine" != "ucontext"; then
4556     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4557   fi
4558 else
4559 cat > $TMPC << EOF
4560 int main(int argc, char *argv[])
4561 {
4562 #if defined(__has_feature)
4563 #if __has_feature(safe_stack)
4564 #error SafeStack Enabled
4565 #endif
4566 #endif
4567     return 0;
4568 }
4569 EOF
4570 if test "$safe_stack" = "no"; then
4571   # Make sure that safe-stack is disabled
4572   if ! compile_prog "-Werror" ""; then
4573     # SafeStack was already enabled, try to explicitly remove the feature
4574     flag="-fno-sanitize=safe-stack"
4575     if ! compile_prog "-Werror $flag" "$flag"; then
4576       error_exit "Configure cannot disable SafeStack"
4577     fi
4578     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4579     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4580   fi
4581 else # "$safe_stack" = ""
4582   # Set safe_stack to yes or no based on pre-existing flags
4583   if compile_prog "-Werror" ""; then
4584     safe_stack="no"
4585   else
4586     safe_stack="yes"
4587     if test "$coroutine" != "ucontext"; then
4588       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4589     fi
4590   fi
4591 fi
4592 fi
4593
4594 ##########################################
4595 # check if we have open_by_handle_at
4596
4597 open_by_handle_at=no
4598 cat > $TMPC << EOF
4599 #include <fcntl.h>
4600 #if !defined(AT_EMPTY_PATH)
4601 # error missing definition
4602 #else
4603 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4604 #endif
4605 EOF
4606 if compile_prog "" "" ; then
4607     open_by_handle_at=yes
4608 fi
4609
4610 ########################################
4611 # check if we have linux/magic.h
4612
4613 linux_magic_h=no
4614 cat > $TMPC << EOF
4615 #include <linux/magic.h>
4616 int main(void) {
4617   return 0;
4618 }
4619 EOF
4620 if compile_prog "" "" ; then
4621     linux_magic_h=yes
4622 fi
4623
4624 ########################################
4625 # check if we have valgrind/valgrind.h
4626
4627 valgrind_h=no
4628 cat > $TMPC << EOF
4629 #include <valgrind/valgrind.h>
4630 int main(void) {
4631   return 0;
4632 }
4633 EOF
4634 if compile_prog "" "" ; then
4635     valgrind_h=yes
4636 fi
4637
4638 ########################################
4639 # check if environ is declared
4640
4641 has_environ=no
4642 cat > $TMPC << EOF
4643 #include <unistd.h>
4644 int main(void) {
4645     environ = 0;
4646     return 0;
4647 }
4648 EOF
4649 if compile_prog "" "" ; then
4650     has_environ=yes
4651 fi
4652
4653 ########################################
4654 # check if cpuid.h is usable.
4655
4656 cat > $TMPC << EOF
4657 #include <cpuid.h>
4658 int main(void) {
4659     unsigned a, b, c, d;
4660     int max = __get_cpuid_max(0, 0);
4661
4662     if (max >= 1) {
4663         __cpuid(1, a, b, c, d);
4664     }
4665
4666     if (max >= 7) {
4667         __cpuid_count(7, 0, a, b, c, d);
4668     }
4669
4670     return 0;
4671 }
4672 EOF
4673 if compile_prog "" "" ; then
4674     cpuid_h=yes
4675 fi
4676
4677 ##########################################
4678 # avx2 optimization requirement check
4679 #
4680 # There is no point enabling this if cpuid.h is not usable,
4681 # since we won't be able to select the new routines.
4682
4683 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
4684   cat > $TMPC << EOF
4685 #pragma GCC push_options
4686 #pragma GCC target("avx2")
4687 #include <cpuid.h>
4688 #include <immintrin.h>
4689 static int bar(void *a) {
4690     __m256i x = *(__m256i *)a;
4691     return _mm256_testz_si256(x, x);
4692 }
4693 int main(int argc, char *argv[]) { return bar(argv[0]); }
4694 EOF
4695   if compile_object "" ; then
4696     avx2_opt="yes"
4697   else
4698     avx2_opt="no"
4699   fi
4700 fi
4701
4702 ##########################################
4703 # avx512f optimization requirement check
4704 #
4705 # There is no point enabling this if cpuid.h is not usable,
4706 # since we won't be able to select the new routines.
4707 # by default, it is turned off.
4708 # if user explicitly want to enable it, check environment
4709
4710 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
4711   cat > $TMPC << EOF
4712 #pragma GCC push_options
4713 #pragma GCC target("avx512f")
4714 #include <cpuid.h>
4715 #include <immintrin.h>
4716 static int bar(void *a) {
4717     __m512i x = *(__m512i *)a;
4718     return _mm512_test_epi64_mask(x, x);
4719 }
4720 int main(int argc, char *argv[])
4721 {
4722         return bar(argv[0]);
4723 }
4724 EOF
4725   if ! compile_object "" ; then
4726     avx512f_opt="no"
4727   fi
4728 else
4729   avx512f_opt="no"
4730 fi
4731
4732 ########################################
4733 # check if __[u]int128_t is usable.
4734
4735 int128=no
4736 cat > $TMPC << EOF
4737 __int128_t a;
4738 __uint128_t b;
4739 int main (void) {
4740   a = a + b;
4741   b = a * b;
4742   a = a * a;
4743   return 0;
4744 }
4745 EOF
4746 if compile_prog "" "" ; then
4747     int128=yes
4748 fi
4749
4750 #########################################
4751 # See if 128-bit atomic operations are supported.
4752
4753 atomic128=no
4754 if test "$int128" = "yes"; then
4755   cat > $TMPC << EOF
4756 int main(void)
4757 {
4758   unsigned __int128 x = 0, y = 0;
4759   y = __atomic_load_16(&x, 0);
4760   __atomic_store_16(&x, y, 0);
4761   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
4762   return 0;
4763 }
4764 EOF
4765   if compile_prog "" "" ; then
4766     atomic128=yes
4767   fi
4768 fi
4769
4770 cmpxchg128=no
4771 if test "$int128" = yes && test "$atomic128" = no; then
4772   cat > $TMPC << EOF
4773 int main(void)
4774 {
4775   unsigned __int128 x = 0, y = 0;
4776   __sync_val_compare_and_swap_16(&x, y, x);
4777   return 0;
4778 }
4779 EOF
4780   if compile_prog "" "" ; then
4781     cmpxchg128=yes
4782   fi
4783 fi
4784
4785 #########################################
4786 # See if 64-bit atomic operations are supported.
4787 # Note that without __atomic builtins, we can only
4788 # assume atomic loads/stores max at pointer size.
4789
4790 cat > $TMPC << EOF
4791 #include <stdint.h>
4792 int main(void)
4793 {
4794   uint64_t x = 0, y = 0;
4795 #ifdef __ATOMIC_RELAXED
4796   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
4797   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
4798   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
4799   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
4800   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
4801 #else
4802   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
4803   __sync_lock_test_and_set(&x, y);
4804   __sync_val_compare_and_swap(&x, y, 0);
4805   __sync_fetch_and_add(&x, y);
4806 #endif
4807   return 0;
4808 }
4809 EOF
4810 if compile_prog "" "" ; then
4811   atomic64=yes
4812 fi
4813
4814 #########################################
4815 # See if --dynamic-list is supported by the linker
4816 ld_dynamic_list="no"
4817 if test "$static" = "no" ; then
4818     cat > $TMPTXT <<EOF
4819 {
4820   foo;
4821 };
4822 EOF
4823
4824     cat > $TMPC <<EOF
4825 #include <stdio.h>
4826 void foo(void);
4827
4828 void foo(void)
4829 {
4830   printf("foo\n");
4831 }
4832
4833 int main(void)
4834 {
4835   foo();
4836   return 0;
4837 }
4838 EOF
4839
4840     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
4841         ld_dynamic_list="yes"
4842     fi
4843 fi
4844
4845 #########################################
4846 # See if -exported_symbols_list is supported by the linker
4847
4848 ld_exported_symbols_list="no"
4849 if test "$static" = "no" ; then
4850     cat > $TMPTXT <<EOF
4851   _foo
4852 EOF
4853
4854     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
4855         ld_exported_symbols_list="yes"
4856     fi
4857 fi
4858
4859 if  test "$plugins" = "yes" &&
4860     test "$ld_dynamic_list" = "no" &&
4861     test "$ld_exported_symbols_list" = "no" ; then
4862   error_exit \
4863       "Plugin support requires dynamic linking and specifying a set of symbols " \
4864       "that are exported to plugins. Unfortunately your linker doesn't " \
4865       "support the flag (--dynamic-list or -exported_symbols_list) used " \
4866       "for this purpose. You can't build with --static."
4867 fi
4868
4869 ########################################
4870 # See if __attribute__((alias)) is supported.
4871 # This false for Xcode 9, but has been remedied for Xcode 10.
4872 # Unfortunately, travis uses Xcode 9 by default.
4873
4874 attralias=no
4875 cat > $TMPC << EOF
4876 int x = 1;
4877 extern const int y __attribute__((alias("x")));
4878 int main(void) { return 0; }
4879 EOF
4880 if compile_prog "" "" ; then
4881     attralias=yes
4882 fi
4883
4884 ########################################
4885 # check if getauxval is available.
4886
4887 getauxval=no
4888 cat > $TMPC << EOF
4889 #include <sys/auxv.h>
4890 int main(void) {
4891   return getauxval(AT_HWCAP) == 0;
4892 }
4893 EOF
4894 if compile_prog "" "" ; then
4895     getauxval=yes
4896 fi
4897
4898 ########################################
4899 # check if ccache is interfering with
4900 # semantic analysis of macros
4901
4902 unset CCACHE_CPP2
4903 ccache_cpp2=no
4904 cat > $TMPC << EOF
4905 static const int Z = 1;
4906 #define fn() ({ Z; })
4907 #define TAUT(X) ((X) == Z)
4908 #define PAREN(X, Y) (X == Y)
4909 #define ID(X) (X)
4910 int main(int argc, char *argv[])
4911 {
4912     int x = 0, y = 0;
4913     x = ID(x);
4914     x = fn();
4915     fn();
4916     if (PAREN(x, y)) return 0;
4917     if (TAUT(Z)) return 0;
4918     return 0;
4919 }
4920 EOF
4921
4922 if ! compile_object "-Werror"; then
4923     ccache_cpp2=yes
4924 fi
4925
4926 #################################################
4927 # clang does not support glibc + FORTIFY_SOURCE.
4928
4929 if test "$fortify_source" != "no"; then
4930   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
4931     fortify_source="no";
4932   elif test -n "$cxx" && has $cxx &&
4933        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
4934     fortify_source="no";
4935   else
4936     fortify_source="yes"
4937   fi
4938 fi
4939
4940 ###############################################
4941 # Check if copy_file_range is provided by glibc
4942 have_copy_file_range=no
4943 cat > $TMPC << EOF
4944 #include <unistd.h>
4945 int main(void) {
4946   copy_file_range(0, NULL, 0, NULL, 0, 0);
4947   return 0;
4948 }
4949 EOF
4950 if compile_prog "" "" ; then
4951     have_copy_file_range=yes
4952 fi
4953
4954 ##########################################
4955 # check if struct fsxattr is available via linux/fs.h
4956
4957 have_fsxattr=no
4958 cat > $TMPC << EOF
4959 #include <linux/fs.h>
4960 struct fsxattr foo;
4961 int main(void) {
4962   return 0;
4963 }
4964 EOF
4965 if compile_prog "" "" ; then
4966     have_fsxattr=yes
4967 fi
4968
4969 ##########################################
4970 # check for usable membarrier system call
4971 if test "$membarrier" = "yes"; then
4972     have_membarrier=no
4973     if test "$mingw32" = "yes" ; then
4974         have_membarrier=yes
4975     elif test "$linux" = "yes" ; then
4976         cat > $TMPC << EOF
4977     #include <linux/membarrier.h>
4978     #include <sys/syscall.h>
4979     #include <unistd.h>
4980     #include <stdlib.h>
4981     int main(void) {
4982         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
4983         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
4984         exit(0);
4985     }
4986 EOF
4987         if compile_prog "" "" ; then
4988             have_membarrier=yes
4989         fi
4990     fi
4991     if test "$have_membarrier" = "no"; then
4992       feature_not_found "membarrier" "membarrier system call not available"
4993     fi
4994 else
4995     # Do not enable it by default even for Mingw32, because it doesn't
4996     # work on Wine.
4997     membarrier=no
4998 fi
4999
5000 ##########################################
5001 # check if rtnetlink.h exists and is useful
5002 have_rtnetlink=no
5003 cat > $TMPC << EOF
5004 #include <linux/rtnetlink.h>
5005 int main(void) {
5006   return IFLA_PROTO_DOWN;
5007 }
5008 EOF
5009 if compile_prog "" "" ; then
5010     have_rtnetlink=yes
5011 fi
5012
5013 ##########################################
5014 # check for usable AF_VSOCK environment
5015 have_af_vsock=no
5016 cat > $TMPC << EOF
5017 #include <errno.h>
5018 #include <sys/types.h>
5019 #include <sys/socket.h>
5020 #if !defined(AF_VSOCK)
5021 # error missing AF_VSOCK flag
5022 #endif
5023 #include <linux/vm_sockets.h>
5024 int main(void) {
5025     int sock, ret;
5026     struct sockaddr_vm svm;
5027     socklen_t len = sizeof(svm);
5028     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5029     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5030     if ((ret == -1) && (errno == ENOTCONN)) {
5031         return 0;
5032     }
5033     return -1;
5034 }
5035 EOF
5036 if compile_prog "" "" ; then
5037     have_af_vsock=yes
5038 fi
5039
5040 ##########################################
5041 # check for usable AF_ALG environment
5042 have_afalg=no
5043 cat > $TMPC << EOF
5044 #include <errno.h>
5045 #include <sys/types.h>
5046 #include <sys/socket.h>
5047 #include <linux/if_alg.h>
5048 int main(void) {
5049     int sock;
5050     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5051     return sock;
5052 }
5053 EOF
5054 if compile_prog "" "" ; then
5055     have_afalg=yes
5056 fi
5057 if test "$crypto_afalg" = "yes"
5058 then
5059     if test "$have_afalg" != "yes"
5060     then
5061         error_exit "AF_ALG requested but could not be detected"
5062     fi
5063 fi
5064
5065
5066 #################################################
5067 # check for sysmacros.h
5068
5069 have_sysmacros=no
5070 cat > $TMPC << EOF
5071 #include <sys/sysmacros.h>
5072 int main(void) {
5073     return makedev(0, 0);
5074 }
5075 EOF
5076 if compile_prog "" "" ; then
5077     have_sysmacros=yes
5078 fi
5079
5080 ##########################################
5081 # check for _Static_assert()
5082
5083 have_static_assert=no
5084 cat > $TMPC << EOF
5085 _Static_assert(1, "success");
5086 int main(void) {
5087     return 0;
5088 }
5089 EOF
5090 if compile_prog "" "" ; then
5091     have_static_assert=yes
5092 fi
5093
5094 ##########################################
5095 # check for utmpx.h, it is missing e.g. on OpenBSD
5096
5097 have_utmpx=no
5098 cat > $TMPC << EOF
5099 #include <utmpx.h>
5100 struct utmpx user_info;
5101 int main(void) {
5102     return 0;
5103 }
5104 EOF
5105 if compile_prog "" "" ; then
5106     have_utmpx=yes
5107 fi
5108
5109 ##########################################
5110 # check for getrandom()
5111
5112 have_getrandom=no
5113 cat > $TMPC << EOF
5114 #include <sys/random.h>
5115 int main(void) {
5116     return getrandom(0, 0, GRND_NONBLOCK);
5117 }
5118 EOF
5119 if compile_prog "" "" ; then
5120     have_getrandom=yes
5121 fi
5122
5123 ##########################################
5124 # checks for sanitizers
5125
5126 have_asan=no
5127 have_ubsan=no
5128 have_asan_iface_h=no
5129 have_asan_iface_fiber=no
5130
5131 if test "$sanitizers" = "yes" ; then
5132   write_c_skeleton
5133   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5134       have_asan=yes
5135   fi
5136
5137   # we could use a simple skeleton for flags checks, but this also
5138   # detect the static linking issue of ubsan, see also:
5139   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5140   cat > $TMPC << EOF
5141 #include <stdlib.h>
5142 int main(void) {
5143     void *tmp = malloc(10);
5144     if (tmp != NULL) {
5145         return *(int *)(tmp + 2);
5146     }
5147     return 1;
5148 }
5149 EOF
5150   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5151       have_ubsan=yes
5152   fi
5153
5154   if check_include "sanitizer/asan_interface.h" ; then
5155       have_asan_iface_h=yes
5156   fi
5157
5158   cat > $TMPC << EOF
5159 #include <sanitizer/asan_interface.h>
5160 int main(void) {
5161   __sanitizer_start_switch_fiber(0, 0, 0);
5162   return 0;
5163 }
5164 EOF
5165   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5166       have_asan_iface_fiber=yes
5167   fi
5168 fi
5169
5170 ##########################################
5171 # checks for fuzzer
5172 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5173   write_c_fuzzer_skeleton
5174   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5175     have_fuzzer=yes
5176   else
5177     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5178     exit 1
5179   fi
5180 fi
5181
5182 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5183 # keep it separate until that is not the case.
5184 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5185   error_exit "TSAN is not supported with other sanitiziers."
5186 fi
5187 have_tsan=no
5188 have_tsan_iface_fiber=no
5189 if test "$tsan" = "yes" ; then
5190   write_c_skeleton
5191   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5192       have_tsan=yes
5193   fi
5194   cat > $TMPC << EOF
5195 #include <sanitizer/tsan_interface.h>
5196 int main(void) {
5197   __tsan_create_fiber(0);
5198   return 0;
5199 }
5200 EOF
5201   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5202       have_tsan_iface_fiber=yes
5203   fi
5204 fi
5205
5206 ##########################################
5207 # check for libpmem
5208
5209 if test "$libpmem" != "no"; then
5210         if $pkg_config --exists "libpmem"; then
5211                 libpmem="yes"
5212                 libpmem_libs=$($pkg_config --libs libpmem)
5213                 libpmem_cflags=$($pkg_config --cflags libpmem)
5214         else
5215                 if test "$libpmem" = "yes" ; then
5216                         feature_not_found "libpmem" "Install nvml or pmdk"
5217                 fi
5218                 libpmem="no"
5219         fi
5220 fi
5221
5222 ##########################################
5223 # check for libdaxctl
5224
5225 if test "$libdaxctl" != "no"; then
5226         if $pkg_config --atleast-version=57 "libdaxctl"; then
5227                 libdaxctl="yes"
5228                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5229                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5230         else
5231                 if test "$libdaxctl" = "yes" ; then
5232                         feature_not_found "libdaxctl" "Install libdaxctl"
5233                 fi
5234                 libdaxctl="no"
5235         fi
5236 fi
5237
5238 ##########################################
5239 # check for slirp
5240
5241 case "$slirp" in
5242   auto | enabled | internal)
5243     # Simpler to always update submodule, even if not needed.
5244     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5245       git_submodules="${git_submodules} slirp"
5246     fi
5247     ;;
5248 esac
5249
5250 ##########################################
5251 # check for usable __NR_keyctl syscall
5252
5253 if test "$linux" = "yes" ; then
5254
5255     have_keyring=no
5256     cat > $TMPC << EOF
5257 #include <errno.h>
5258 #include <asm/unistd.h>
5259 #include <linux/keyctl.h>
5260 #include <unistd.h>
5261 int main(void) {
5262     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5263 }
5264 EOF
5265     if compile_prog "" "" ; then
5266         have_keyring=yes
5267     fi
5268 fi
5269 if test "$secret_keyring" != "no"
5270 then
5271     if test "$have_keyring" = "yes"
5272     then
5273         secret_keyring=yes
5274     else
5275         if test "$secret_keyring" = "yes"
5276         then
5277             error_exit "syscall __NR_keyctl requested, \
5278 but not implemented on your system"
5279         else
5280             secret_keyring=no
5281         fi
5282     fi
5283 fi
5284
5285 ##########################################
5286 # End of CC checks
5287 # After here, no more $cc or $ld runs
5288
5289 write_c_skeleton
5290
5291 if test "$gcov" = "yes" ; then
5292   :
5293 elif test "$fortify_source" = "yes" ; then
5294   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5295   debug=no
5296 fi
5297
5298 case "$ARCH" in
5299 alpha)
5300   # Ensure there's only a single GP
5301   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5302 ;;
5303 esac
5304
5305 if test "$gprof" = "yes" ; then
5306   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5307   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5308 fi
5309
5310 if test "$have_asan" = "yes"; then
5311   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5312   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5313   if test "$have_asan_iface_h" = "no" ; then
5314       echo "ASAN build enabled, but ASAN header missing." \
5315            "Without code annotation, the report may be inferior."
5316   elif test "$have_asan_iface_fiber" = "no" ; then
5317       echo "ASAN build enabled, but ASAN header is too old." \
5318            "Without code annotation, the report may be inferior."
5319   fi
5320 fi
5321 if test "$have_tsan" = "yes" ; then
5322   if test "$have_tsan_iface_fiber" = "yes" ; then
5323     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5324     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5325   else
5326     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5327   fi
5328 elif test "$tsan" = "yes" ; then
5329   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5330 fi
5331 if test "$have_ubsan" = "yes"; then
5332   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5333   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5334 fi
5335
5336 ##########################################
5337
5338 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5339 if test "$solaris" = "no" && test "$tsan" = "no"; then
5340     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5341         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5342     fi
5343 fi
5344
5345 # Use ASLR, no-SEH and DEP if available
5346 if test "$mingw32" = "yes" ; then
5347     flags="--no-seh --nxcompat"
5348
5349     # Disable ASLR for debug builds to allow debugging with gdb
5350     if test "$debug" = "no" ; then
5351         flags="--dynamicbase $flags"
5352     fi
5353
5354     for flag in $flags; do
5355         if ld_has $flag ; then
5356             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5357         fi
5358     done
5359 fi
5360
5361 # We can only support ivshmem if we have eventfd
5362 if [ "$eventfd" = "yes" ]; then
5363   ivshmem=yes
5364 fi
5365
5366 # Probe for guest agent support/options
5367
5368 if [ "$guest_agent" != "no" ]; then
5369   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5370       guest_agent=no
5371   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5372       guest_agent=yes
5373   elif [ "$guest_agent" != yes ]; then
5374       guest_agent=no
5375   else
5376       error_exit "Guest agent is not supported on this platform"
5377   fi
5378 fi
5379
5380 # Guest agent Window MSI  package
5381
5382 if test "$guest_agent" != yes; then
5383   if test "$guest_agent_msi" = yes; then
5384     error_exit "MSI guest agent package requires guest agent enabled"
5385   fi
5386   guest_agent_msi=no
5387 elif test "$mingw32" != "yes"; then
5388   if test "$guest_agent_msi" = "yes"; then
5389     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5390   fi
5391   guest_agent_msi=no
5392 elif ! has wixl; then
5393   if test "$guest_agent_msi" = "yes"; then
5394     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5395   fi
5396   guest_agent_msi=no
5397 else
5398   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5399   # disabled explicitly
5400   if test "$guest_agent_msi" != "no"; then
5401     guest_agent_msi=yes
5402   fi
5403 fi
5404
5405 if test "$guest_agent_msi" = "yes"; then
5406   if test "$guest_agent_with_vss" = "yes"; then
5407     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5408   fi
5409
5410   if test "$QEMU_GA_MANUFACTURER" = ""; then
5411     QEMU_GA_MANUFACTURER=QEMU
5412   fi
5413
5414   if test "$QEMU_GA_DISTRO" = ""; then
5415     QEMU_GA_DISTRO=Linux
5416   fi
5417
5418   if test "$QEMU_GA_VERSION" = ""; then
5419       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5420   fi
5421
5422   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5423
5424   case "$cpu" in
5425   x86_64)
5426     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5427     ;;
5428   i386)
5429     QEMU_GA_MSI_ARCH="-D Arch=32"
5430     ;;
5431   *)
5432     error_exit "CPU $cpu not supported for building installation package"
5433     ;;
5434   esac
5435 fi
5436
5437 # Mac OS X ships with a broken assembler
5438 roms=
5439 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5440         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5441         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5442     # Different host OS linkers have different ideas about the name of the ELF
5443     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5444     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5445     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5446         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5447             ld_i386_emulation="$emu"
5448             roms="optionrom"
5449             break
5450         fi
5451     done
5452 fi
5453
5454 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5455 if test "$cpu" = "s390x" ; then
5456   write_c_skeleton
5457   if compile_prog "-march=z900" ""; then
5458     roms="$roms s390-ccw"
5459     # SLOF is required for building the s390-ccw firmware on s390x,
5460     # since it is using the libnet code from SLOF for network booting.
5461     if test -e "${source_path}/.git" ; then
5462       git_submodules="${git_submodules} roms/SLOF"
5463     fi
5464   fi
5465 fi
5466
5467 # Check that the C++ compiler exists and works with the C compiler.
5468 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5469 if has $cxx; then
5470     cat > $TMPC <<EOF
5471 int c_function(void);
5472 int main(void) { return c_function(); }
5473 EOF
5474
5475     compile_object
5476
5477     cat > $TMPCXX <<EOF
5478 extern "C" {
5479    int c_function(void);
5480 }
5481 int c_function(void) { return 42; }
5482 EOF
5483
5484     update_cxxflags
5485
5486     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5487         # C++ compiler $cxx works ok with C compiler $cc
5488         :
5489     else
5490         echo "C++ compiler $cxx does not work with C compiler $cc"
5491         echo "Disabling C++ specific optional code"
5492         cxx=
5493     fi
5494 else
5495     echo "No C++ compiler available; disabling C++ specific optional code"
5496     cxx=
5497 fi
5498
5499 if test $git_update = 'yes' ; then
5500     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5501 fi
5502
5503 config_host_mak="config-host.mak"
5504
5505 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5506 echo >> $config_host_mak
5507
5508 echo all: >> $config_host_mak
5509 echo "GIT=$git" >> $config_host_mak
5510 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5511 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5512
5513 echo "ARCH=$ARCH" >> $config_host_mak
5514
5515 if test "$debug_tcg" = "yes" ; then
5516   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5517 fi
5518 if test "$strip_opt" = "yes" ; then
5519   echo "STRIP=${strip}" >> $config_host_mak
5520 fi
5521 if test "$bigendian" = "yes" ; then
5522   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5523 fi
5524 if test "$mingw32" = "yes" ; then
5525   echo "CONFIG_WIN32=y" >> $config_host_mak
5526   if test "$guest_agent_with_vss" = "yes" ; then
5527     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5528     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5529     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5530   fi
5531   if test "$guest_agent_ntddscsi" = "yes" ; then
5532     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5533   fi
5534   if test "$guest_agent_msi" = "yes"; then
5535     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5536     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5537     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5538     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5539     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5540     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5541     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5542   fi
5543 else
5544   echo "CONFIG_POSIX=y" >> $config_host_mak
5545 fi
5546
5547 if test "$linux" = "yes" ; then
5548   echo "CONFIG_LINUX=y" >> $config_host_mak
5549 fi
5550
5551 if test "$darwin" = "yes" ; then
5552   echo "CONFIG_DARWIN=y" >> $config_host_mak
5553 fi
5554
5555 if test "$solaris" = "yes" ; then
5556   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5557 fi
5558 if test "$haiku" = "yes" ; then
5559   echo "CONFIG_HAIKU=y" >> $config_host_mak
5560 fi
5561 if test "$static" = "yes" ; then
5562   echo "CONFIG_STATIC=y" >> $config_host_mak
5563 fi
5564 if test "$profiler" = "yes" ; then
5565   echo "CONFIG_PROFILER=y" >> $config_host_mak
5566 fi
5567 if test "$want_tools" = "yes" ; then
5568   echo "CONFIG_TOOLS=y" >> $config_host_mak
5569 fi
5570 if test "$guest_agent" = "yes" ; then
5571   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5572 fi
5573 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5574 if test "$vde" = "yes" ; then
5575   echo "CONFIG_VDE=y" >> $config_host_mak
5576   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5577 fi
5578 if test "$netmap" = "yes" ; then
5579   echo "CONFIG_NETMAP=y" >> $config_host_mak
5580 fi
5581 if test "$l2tpv3" = "yes" ; then
5582   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5583 fi
5584 if test "$gprof" = "yes" ; then
5585   echo "CONFIG_GPROF=y" >> $config_host_mak
5586 fi
5587 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5588 for drv in $audio_drv_list; do
5589     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5590     echo "$def=y" >> $config_host_mak
5591 done
5592 if test "$alsa" = "yes" ; then
5593     echo "CONFIG_ALSA=y" >> $config_host_mak
5594 fi
5595 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5596 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5597 if test "$libpulse" = "yes" ; then
5598     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5599 fi
5600 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
5601 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
5602 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
5603 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
5604 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
5605 if test "$libjack" = "yes" ; then
5606     echo "CONFIG_LIBJACK=y" >> $config_host_mak
5607 fi
5608 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
5609 if test "$audio_win_int" = "yes" ; then
5610   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
5611 fi
5612 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
5613 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
5614 if test "$xfs" = "yes" ; then
5615   echo "CONFIG_XFS=y" >> $config_host_mak
5616 fi
5617 qemu_version=$(head $source_path/VERSION)
5618 echo "PKGVERSION=$pkgversion" >>$config_host_mak
5619 echo "SRC_PATH=$source_path" >> $config_host_mak
5620 echo "TARGET_DIRS=$target_list" >> $config_host_mak
5621 if test "$modules" = "yes"; then
5622   # $shacmd can generate a hash started with digit, which the compiler doesn't
5623   # like as an symbol. So prefix it with an underscore
5624   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
5625   echo "CONFIG_MODULES=y" >> $config_host_mak
5626 fi
5627 if test "$module_upgrades" = "yes"; then
5628   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
5629 fi
5630 if test "$pipe2" = "yes" ; then
5631   echo "CONFIG_PIPE2=y" >> $config_host_mak
5632 fi
5633 if test "$accept4" = "yes" ; then
5634   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
5635 fi
5636 if test "$splice" = "yes" ; then
5637   echo "CONFIG_SPLICE=y" >> $config_host_mak
5638 fi
5639 if test "$eventfd" = "yes" ; then
5640   echo "CONFIG_EVENTFD=y" >> $config_host_mak
5641 fi
5642 if test "$memfd" = "yes" ; then
5643   echo "CONFIG_MEMFD=y" >> $config_host_mak
5644 fi
5645 if test "$have_usbfs" = "yes" ; then
5646   echo "CONFIG_USBFS=y" >> $config_host_mak
5647 fi
5648 if test "$fallocate" = "yes" ; then
5649   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
5650 fi
5651 if test "$fallocate_punch_hole" = "yes" ; then
5652   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
5653 fi
5654 if test "$fallocate_zero_range" = "yes" ; then
5655   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
5656 fi
5657 if test "$posix_fallocate" = "yes" ; then
5658   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
5659 fi
5660 if test "$sync_file_range" = "yes" ; then
5661   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
5662 fi
5663 if test "$fiemap" = "yes" ; then
5664   echo "CONFIG_FIEMAP=y" >> $config_host_mak
5665 fi
5666 if test "$dup3" = "yes" ; then
5667   echo "CONFIG_DUP3=y" >> $config_host_mak
5668 fi
5669 if test "$ppoll" = "yes" ; then
5670   echo "CONFIG_PPOLL=y" >> $config_host_mak
5671 fi
5672 if test "$prctl_pr_set_timerslack" = "yes" ; then
5673   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
5674 fi
5675 if test "$epoll" = "yes" ; then
5676   echo "CONFIG_EPOLL=y" >> $config_host_mak
5677 fi
5678 if test "$epoll_create1" = "yes" ; then
5679   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
5680 fi
5681 if test "$sendfile" = "yes" ; then
5682   echo "CONFIG_SENDFILE=y" >> $config_host_mak
5683 fi
5684 if test "$timerfd" = "yes" ; then
5685   echo "CONFIG_TIMERFD=y" >> $config_host_mak
5686 fi
5687 if test "$setns" = "yes" ; then
5688   echo "CONFIG_SETNS=y" >> $config_host_mak
5689 fi
5690 if test "$clock_adjtime" = "yes" ; then
5691   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
5692 fi
5693 if test "$syncfs" = "yes" ; then
5694   echo "CONFIG_SYNCFS=y" >> $config_host_mak
5695 fi
5696 if test "$inotify" = "yes" ; then
5697   echo "CONFIG_INOTIFY=y" >> $config_host_mak
5698 fi
5699 if test "$inotify1" = "yes" ; then
5700   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
5701 fi
5702 if test "$sem_timedwait" = "yes" ; then
5703   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
5704 fi
5705 if test "$strchrnul" = "yes" ; then
5706   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
5707 fi
5708 if test "$st_atim" = "yes" ; then
5709   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
5710 fi
5711 if test "$byteswap_h" = "yes" ; then
5712   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
5713 fi
5714 if test "$bswap_h" = "yes" ; then
5715   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
5716 fi
5717 if test "$gio" = "yes" ; then
5718     echo "CONFIG_GIO=y" >> $config_host_mak
5719     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
5720     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
5721     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
5722 fi
5723 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
5724 if test "$gnutls" = "yes" ; then
5725   echo "CONFIG_GNUTLS=y" >> $config_host_mak
5726   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
5727   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
5728 fi
5729 if test "$gcrypt" = "yes" ; then
5730   echo "CONFIG_GCRYPT=y" >> $config_host_mak
5731   if test "$gcrypt_hmac" = "yes" ; then
5732     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
5733   fi
5734   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
5735   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
5736 fi
5737 if test "$nettle" = "yes" ; then
5738   echo "CONFIG_NETTLE=y" >> $config_host_mak
5739   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
5740   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
5741   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
5742 fi
5743 if test "$qemu_private_xts" = "yes" ; then
5744   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
5745 fi
5746 if test "$tasn1" = "yes" ; then
5747   echo "CONFIG_TASN1=y" >> $config_host_mak
5748 fi
5749 if test "$auth_pam" = "yes" ; then
5750     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
5751 fi
5752 if test "$have_broken_size_max" = "yes" ; then
5753     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
5754 fi
5755 if test "$have_openpty" = "yes" ; then
5756     echo "HAVE_OPENPTY=y" >> $config_host_mak
5757 fi
5758
5759 # Work around a system header bug with some kernel/XFS header
5760 # versions where they both try to define 'struct fsxattr':
5761 # xfs headers will not try to redefine structs from linux headers
5762 # if this macro is set.
5763 if test "$have_fsxattr" = "yes" ; then
5764     echo "HAVE_FSXATTR=y" >> $config_host_mak
5765 fi
5766 if test "$have_copy_file_range" = "yes" ; then
5767     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
5768 fi
5769 if test "$vte" = "yes" ; then
5770   echo "CONFIG_VTE=y" >> $config_host_mak
5771   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
5772   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
5773 fi
5774 if test "$virglrenderer" = "yes" ; then
5775   echo "CONFIG_VIRGL=y" >> $config_host_mak
5776   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
5777   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
5778 fi
5779 if test "$xen" = "enabled" ; then
5780   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
5781   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
5782   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
5783   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
5784 fi
5785 if test "$linux_aio" = "yes" ; then
5786   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
5787 fi
5788 if test "$linux_io_uring" = "yes" ; then
5789   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
5790   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
5791   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
5792 fi
5793 if test "$vhost_scsi" = "yes" ; then
5794   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
5795 fi
5796 if test "$vhost_net" = "yes" ; then
5797   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
5798 fi
5799 if test "$vhost_net_user" = "yes" ; then
5800   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
5801 fi
5802 if test "$vhost_net_vdpa" = "yes" ; then
5803   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
5804 fi
5805 if test "$vhost_crypto" = "yes" ; then
5806   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
5807 fi
5808 if test "$vhost_vsock" = "yes" ; then
5809   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
5810   if test "$vhost_user" = "yes" ; then
5811     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
5812   fi
5813 fi
5814 if test "$vhost_kernel" = "yes" ; then
5815   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
5816 fi
5817 if test "$vhost_user" = "yes" ; then
5818   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
5819 fi
5820 if test "$vhost_vdpa" = "yes" ; then
5821   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
5822 fi
5823 if test "$vhost_user_fs" = "yes" ; then
5824   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
5825 fi
5826 if test "$iovec" = "yes" ; then
5827   echo "CONFIG_IOVEC=y" >> $config_host_mak
5828 fi
5829 if test "$preadv" = "yes" ; then
5830   echo "CONFIG_PREADV=y" >> $config_host_mak
5831 fi
5832 if test "$membarrier" = "yes" ; then
5833   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
5834 fi
5835 if test "$signalfd" = "yes" ; then
5836   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
5837 fi
5838 if test "$optreset" = "yes" ; then
5839   echo "HAVE_OPTRESET=y" >> $config_host_mak
5840 fi
5841 if test "$tcg" = "enabled"; then
5842   if test "$tcg_interpreter" = "yes" ; then
5843     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
5844   fi
5845 fi
5846 if test "$fdatasync" = "yes" ; then
5847   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
5848 fi
5849 if test "$madvise" = "yes" ; then
5850   echo "CONFIG_MADVISE=y" >> $config_host_mak
5851 fi
5852 if test "$posix_madvise" = "yes" ; then
5853   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
5854 fi
5855 if test "$posix_memalign" = "yes" ; then
5856   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
5857 fi
5858 if test "$spice" = "yes" ; then
5859   echo "CONFIG_SPICE=y" >> $config_host_mak
5860   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
5861   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
5862 fi
5863
5864 if test "$smartcard" = "yes" ; then
5865   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
5866   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
5867   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
5868 fi
5869
5870 if test "$libusb" = "yes" ; then
5871   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
5872   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
5873   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
5874 fi
5875
5876 if test "$usb_redir" = "yes" ; then
5877   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
5878   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
5879   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
5880 fi
5881
5882 if test "$opengl" = "yes" ; then
5883   echo "CONFIG_OPENGL=y" >> $config_host_mak
5884   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
5885   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
5886   if test "$opengl_dmabuf" = "yes" ; then
5887     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
5888   fi
5889 fi
5890
5891 if test "$gbm" = "yes" ; then
5892     echo "CONFIG_GBM=y" >> $config_host_mak
5893     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
5894     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
5895 fi
5896
5897
5898 if test "$avx2_opt" = "yes" ; then
5899   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
5900 fi
5901
5902 if test "$avx512f_opt" = "yes" ; then
5903   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
5904 fi
5905
5906 # XXX: suppress that
5907 if [ "$bsd" = "yes" ] ; then
5908   echo "CONFIG_BSD=y" >> $config_host_mak
5909 fi
5910
5911 if test "$qom_cast_debug" = "yes" ; then
5912   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
5913 fi
5914
5915 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
5916 if test "$coroutine_pool" = "yes" ; then
5917   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
5918 else
5919   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
5920 fi
5921
5922 if test "$debug_stack_usage" = "yes" ; then
5923   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
5924 fi
5925
5926 if test "$crypto_afalg" = "yes" ; then
5927   echo "CONFIG_AF_ALG=y" >> $config_host_mak
5928 fi
5929
5930 if test "$open_by_handle_at" = "yes" ; then
5931   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
5932 fi
5933
5934 if test "$linux_magic_h" = "yes" ; then
5935   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
5936 fi
5937
5938 if test "$valgrind_h" = "yes" ; then
5939   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
5940 fi
5941
5942 if test "$have_asan_iface_fiber" = "yes" ; then
5943     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
5944 fi
5945
5946 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
5947     echo "CONFIG_TSAN=y" >> $config_host_mak
5948 fi
5949
5950 if test "$has_environ" = "yes" ; then
5951   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
5952 fi
5953
5954 if test "$cpuid_h" = "yes" ; then
5955   echo "CONFIG_CPUID_H=y" >> $config_host_mak
5956 fi
5957
5958 if test "$int128" = "yes" ; then
5959   echo "CONFIG_INT128=y" >> $config_host_mak
5960 fi
5961
5962 if test "$atomic128" = "yes" ; then
5963   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
5964 fi
5965
5966 if test "$cmpxchg128" = "yes" ; then
5967   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
5968 fi
5969
5970 if test "$atomic64" = "yes" ; then
5971   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
5972 fi
5973
5974 if test "$attralias" = "yes" ; then
5975   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
5976 fi
5977
5978 if test "$getauxval" = "yes" ; then
5979   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
5980 fi
5981
5982 if test "$libssh" = "yes" ; then
5983   echo "CONFIG_LIBSSH=y" >> $config_host_mak
5984   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
5985   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
5986 fi
5987
5988 if test "$live_block_migration" = "yes" ; then
5989   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
5990 fi
5991
5992 if test "$tpm" = "yes"; then
5993   echo 'CONFIG_TPM=y' >> $config_host_mak
5994 fi
5995
5996 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
5997 if have_backend "nop"; then
5998   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
5999 fi
6000 if have_backend "simple"; then
6001   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6002   # Set the appropriate trace file.
6003   trace_file="\"$trace_file-\" FMT_pid"
6004 fi
6005 if have_backend "log"; then
6006   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6007 fi
6008 if have_backend "ust"; then
6009   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6010   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6011   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6012 fi
6013 if have_backend "dtrace"; then
6014   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6015   if test "$trace_backend_stap" = "yes" ; then
6016     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6017   fi
6018 fi
6019 if have_backend "ftrace"; then
6020   if test "$linux" = "yes" ; then
6021     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6022   else
6023     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6024   fi
6025 fi
6026 if have_backend "syslog"; then
6027   if test "$posix_syslog" = "yes" ; then
6028     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6029   else
6030     feature_not_found "syslog(trace backend)" "syslog not available"
6031   fi
6032 fi
6033 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6034
6035 if test "$rdma" = "yes" ; then
6036   echo "CONFIG_RDMA=y" >> $config_host_mak
6037   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6038 fi
6039
6040 if test "$pvrdma" = "yes" ; then
6041   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6042 fi
6043
6044 if test "$have_rtnetlink" = "yes" ; then
6045   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6046 fi
6047
6048 if test "$libxml2" = "yes" ; then
6049   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6050   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6051   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6052 fi
6053
6054 if test "$replication" = "yes" ; then
6055   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6056 fi
6057
6058 if test "$have_af_vsock" = "yes" ; then
6059   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6060 fi
6061
6062 if test "$have_sysmacros" = "yes" ; then
6063   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6064 fi
6065
6066 if test "$have_static_assert" = "yes" ; then
6067   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6068 fi
6069
6070 if test "$have_utmpx" = "yes" ; then
6071   echo "HAVE_UTMPX=y" >> $config_host_mak
6072 fi
6073 if test "$have_getrandom" = "yes" ; then
6074   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6075 fi
6076 if test "$ivshmem" = "yes" ; then
6077   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6078 fi
6079 if test "$debug_mutex" = "yes" ; then
6080   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6081 fi
6082
6083 # Hold two types of flag:
6084 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6085 #                                     a thread we have a handle to
6086 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6087 #                                     platform
6088 if test "$pthread_setname_np_w_tid" = "yes" ; then
6089   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6090   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6091 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6092   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6093   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6094 fi
6095
6096 if test "$libpmem" = "yes" ; then
6097   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6098   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6099   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6100 fi
6101
6102 if test "$libdaxctl" = "yes" ; then
6103   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6104   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6105 fi
6106
6107 if test "$bochs" = "yes" ; then
6108   echo "CONFIG_BOCHS=y" >> $config_host_mak
6109 fi
6110 if test "$cloop" = "yes" ; then
6111   echo "CONFIG_CLOOP=y" >> $config_host_mak
6112 fi
6113 if test "$dmg" = "yes" ; then
6114   echo "CONFIG_DMG=y" >> $config_host_mak
6115 fi
6116 if test "$qcow1" = "yes" ; then
6117   echo "CONFIG_QCOW1=y" >> $config_host_mak
6118 fi
6119 if test "$vdi" = "yes" ; then
6120   echo "CONFIG_VDI=y" >> $config_host_mak
6121 fi
6122 if test "$vvfat" = "yes" ; then
6123   echo "CONFIG_VVFAT=y" >> $config_host_mak
6124 fi
6125 if test "$qed" = "yes" ; then
6126   echo "CONFIG_QED=y" >> $config_host_mak
6127 fi
6128 if test "$parallels" = "yes" ; then
6129   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6130 fi
6131 if test "$sheepdog" = "yes" ; then
6132   add_to deprecated_features "sheepdog"
6133   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6134 fi
6135 if test "$have_mlockall" = "yes" ; then
6136   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6137 fi
6138 if test "$fuzzing" = "yes" ; then
6139   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6140   # needed CFLAGS have already been provided
6141   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6142     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6143     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6144   else
6145     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6146   fi
6147 fi
6148
6149 if test "$plugins" = "yes" ; then
6150     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6151     # Copy the export object list to the build dir
6152     if test "$ld_dynamic_list" = "yes" ; then
6153         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6154         ld_symbols=qemu-plugins-ld.symbols
6155         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6156     elif test "$ld_exported_symbols_list" = "yes" ; then
6157         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6158         ld64_symbols=qemu-plugins-ld64.symbols
6159         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6160         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6161             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6162     else
6163         error_exit \
6164             "If \$plugins=yes, either \$ld_dynamic_list or " \
6165             "\$ld_exported_symbols_list should have been set to 'yes'."
6166     fi
6167 fi
6168
6169 if test -n "$gdb_bin" ; then
6170     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6171 fi
6172
6173 if test "$secret_keyring" = "yes" ; then
6174   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6175 fi
6176
6177 echo "ROMS=$roms" >> $config_host_mak
6178 echo "MAKE=$make" >> $config_host_mak
6179 echo "PYTHON=$python" >> $config_host_mak
6180 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6181 echo "MESON=$meson" >> $config_host_mak
6182 echo "NINJA=$ninja" >> $config_host_mak
6183 echo "CC=$cc" >> $config_host_mak
6184 if $iasl -h > /dev/null 2>&1; then
6185   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6186 fi
6187 echo "CXX=$cxx" >> $config_host_mak
6188 echo "OBJCC=$objcc" >> $config_host_mak
6189 echo "AR=$ar" >> $config_host_mak
6190 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6191 echo "AS=$as" >> $config_host_mak
6192 echo "CCAS=$ccas" >> $config_host_mak
6193 echo "CPP=$cpp" >> $config_host_mak
6194 echo "OBJCOPY=$objcopy" >> $config_host_mak
6195 echo "LD=$ld" >> $config_host_mak
6196 echo "RANLIB=$ranlib" >> $config_host_mak
6197 echo "NM=$nm" >> $config_host_mak
6198 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6199 echo "WINDRES=$windres" >> $config_host_mak
6200 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6201 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6202 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6203 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6204 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6205 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6206 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6207 echo "EXESUF=$EXESUF" >> $config_host_mak
6208 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6209 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6210 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6211 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6212 if test "$gcov" = "yes" ; then
6213   echo "CONFIG_GCOV=y" >> $config_host_mak
6214 fi
6215
6216 if test "$fuzzing" != "no"; then
6217     echo "CONFIG_FUZZ=y" >> $config_host_mak
6218 fi
6219 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6220
6221 if test "$rng_none" = "yes"; then
6222   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6223 fi
6224
6225 # use included Linux headers
6226 if test "$linux" = "yes" ; then
6227   mkdir -p linux-headers
6228   case "$cpu" in
6229   i386|x86_64|x32)
6230     linux_arch=x86
6231     ;;
6232   ppc|ppc64|ppc64le)
6233     linux_arch=powerpc
6234     ;;
6235   s390x)
6236     linux_arch=s390
6237     ;;
6238   aarch64)
6239     linux_arch=arm64
6240     ;;
6241   mips64)
6242     linux_arch=mips
6243     ;;
6244   *)
6245     # For most CPUs the kernel architecture name and QEMU CPU name match.
6246     linux_arch="$cpu"
6247     ;;
6248   esac
6249     # For non-KVM architectures we will not have asm headers
6250     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6251       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6252     fi
6253 fi
6254
6255 for target in $target_list; do
6256     target_dir="$target"
6257     target_name=$(echo $target | cut -d '-' -f 1)
6258     mkdir -p $target_dir
6259     case $target in
6260         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6261         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6262     esac
6263 done
6264
6265 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6266 if test "$default_targets" = "yes"; then
6267   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6268 fi
6269
6270 if test "$numa" = "yes"; then
6271   echo "CONFIG_NUMA=y" >> $config_host_mak
6272   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6273 fi
6274
6275 if test "$ccache_cpp2" = "yes"; then
6276   echo "export CCACHE_CPP2=y" >> $config_host_mak
6277 fi
6278
6279 if test "$safe_stack" = "yes"; then
6280   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6281 fi
6282
6283 # If we're using a separate build tree, set it up now.
6284 # DIRS are directories which we simply mkdir in the build tree;
6285 # LINKS are things to symlink back into the source tree
6286 # (these can be both files and directories).
6287 # Caution: do not add files or directories here using wildcards. This
6288 # will result in problems later if a new file matching the wildcard is
6289 # added to the source tree -- nothing will cause configure to be rerun
6290 # so the build tree will be missing the link back to the new file, and
6291 # tests might fail. Prefer to keep the relevant files in their own
6292 # directory and symlink the directory instead.
6293 # UNLINK is used to remove symlinks from older development versions
6294 # that might get into the way when doing "git update" without doing
6295 # a "make distclean" in between.
6296 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6297 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6298 DIRS="$DIRS docs docs/interop fsdev scsi"
6299 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6300 DIRS="$DIRS roms/seabios"
6301 DIRS="$DIRS contrib/plugins/"
6302 LINKS="Makefile"
6303 LINKS="$LINKS tests/tcg/lm32/Makefile"
6304 LINKS="$LINKS tests/tcg/Makefile.target"
6305 LINKS="$LINKS pc-bios/optionrom/Makefile"
6306 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6307 LINKS="$LINKS roms/seabios/Makefile"
6308 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6309 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6310 LINKS="$LINKS tests/acceptance tests/data"
6311 LINKS="$LINKS tests/qemu-iotests/check"
6312 LINKS="$LINKS python"
6313 LINKS="$LINKS contrib/plugins/Makefile "
6314 UNLINK="pc-bios/keymaps"
6315 for bios_file in \
6316     $source_path/pc-bios/*.bin \
6317     $source_path/pc-bios/*.elf \
6318     $source_path/pc-bios/*.lid \
6319     $source_path/pc-bios/*.rom \
6320     $source_path/pc-bios/*.dtb \
6321     $source_path/pc-bios/*.img \
6322     $source_path/pc-bios/openbios-* \
6323     $source_path/pc-bios/u-boot.* \
6324     $source_path/pc-bios/edk2-*.fd.bz2 \
6325     $source_path/pc-bios/palcode-*
6326 do
6327     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6328 done
6329 mkdir -p $DIRS
6330 for f in $LINKS ; do
6331     if [ -e "$source_path/$f" ]; then
6332         symlink "$source_path/$f" "$f"
6333     fi
6334 done
6335 for f in $UNLINK ; do
6336     if [ -L "$f" ]; then
6337         rm -f "$f"
6338     fi
6339 done
6340
6341 (for i in $cross_cc_vars; do
6342   export $i
6343 done
6344 export target_list source_path use_containers
6345 $source_path/tests/tcg/configure.sh)
6346
6347 # temporary config to build submodules
6348 for rom in seabios; do
6349     config_mak=roms/$rom/config.mak
6350     echo "# Automatically generated by configure - do not modify" > $config_mak
6351     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6352     echo "AS=$as" >> $config_mak
6353     echo "CCAS=$ccas" >> $config_mak
6354     echo "CC=$cc" >> $config_mak
6355     echo "BCC=bcc" >> $config_mak
6356     echo "CPP=$cpp" >> $config_mak
6357     echo "OBJCOPY=objcopy" >> $config_mak
6358     echo "IASL=$iasl" >> $config_mak
6359     echo "LD=$ld" >> $config_mak
6360     echo "RANLIB=$ranlib" >> $config_mak
6361 done
6362
6363 if test "$skip_meson" = no; then
6364 cross="config-meson.cross.new"
6365 meson_quote() {
6366     echo "'$(echo $* | sed "s/ /','/g")'"
6367 }
6368
6369 echo "# Automatically generated by configure - do not modify" > $cross
6370 echo "[properties]" >> $cross
6371 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6372 echo "[built-in options]" >> $cross
6373 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6374 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6375 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6376 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6377 echo "[binaries]" >> $cross
6378 echo "c = [$(meson_quote $cc)]" >> $cross
6379 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6380 echo "ar = [$(meson_quote $ar)]" >> $cross
6381 echo "nm = [$(meson_quote $nm)]" >> $cross
6382 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6383 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6384 if has $sdl2_config; then
6385   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6386 fi
6387 echo "strip = [$(meson_quote $strip)]" >> $cross
6388 echo "windres = [$(meson_quote $windres)]" >> $cross
6389 if test -n "$cross_prefix"; then
6390     cross_arg="--cross-file config-meson.cross"
6391     echo "[host_machine]" >> $cross
6392     if test "$mingw32" = "yes" ; then
6393         echo "system = 'windows'" >> $cross
6394     fi
6395     if test "$linux" = "yes" ; then
6396         echo "system = 'linux'" >> $cross
6397     fi
6398     case "$ARCH" in
6399         i386|x86_64)
6400             echo "cpu_family = 'x86'" >> $cross
6401             ;;
6402         ppc64le)
6403             echo "cpu_family = 'ppc64'" >> $cross
6404             ;;
6405         *)
6406             echo "cpu_family = '$ARCH'" >> $cross
6407             ;;
6408     esac
6409     echo "cpu = '$cpu'" >> $cross
6410     if test "$bigendian" = "yes" ; then
6411         echo "endian = 'big'" >> $cross
6412     else
6413         echo "endian = 'little'" >> $cross
6414     fi
6415 else
6416     cross_arg="--native-file config-meson.cross"
6417 fi
6418 mv $cross config-meson.cross
6419
6420 rm -rf meson-private meson-info meson-logs
6421 unset staticpic
6422 if ! version_ge "$($meson --version)" 0.56.0; then
6423   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6424 fi
6425 NINJA=$ninja $meson setup \
6426         --prefix "$prefix" \
6427         --libdir "$libdir" \
6428         --libexecdir "$libexecdir" \
6429         --bindir "$bindir" \
6430         --includedir "$includedir" \
6431         --datadir "$datadir" \
6432         --mandir "$mandir" \
6433         --sysconfdir "$sysconfdir" \
6434         --localedir "$localedir" \
6435         --localstatedir "$local_statedir" \
6436         -Ddocdir="$docdir" \
6437         -Dqemu_firmwarepath="$firmwarepath" \
6438         -Dqemu_suffix="$qemu_suffix" \
6439         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6440         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6441         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6442         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6443         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6444         ${staticpic:+-Db_staticpic=$staticpic} \
6445         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6446         -Db_lto=$lto -Dcfi=$cfi -Dcfi_debug=$cfi_debug \
6447         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6448         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6449         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6450         -Dcocoa=$cocoa -Dgtk=$gtk -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6451         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6452         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6453         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt -Dbrlapi=$brlapi \
6454         -Dcurl=$curl -Dglusterfs=$glusterfs -Dbzip2=$bzip2 -Dlibiscsi=$libiscsi \
6455         -Dlibnfs=$libnfs -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6456         -Drbd=$rbd -Dlzo=$lzo -Dsnappy=$snappy -Dlzfse=$lzfse \
6457         -Dzstd=$zstd -Dseccomp=$seccomp -Dvirtfs=$virtfs -Dcap_ng=$cap_ng \
6458         -Dattr=$attr -Ddefault_devices=$default_devices \
6459         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6460         -Dvhost_user_blk_server=$vhost_user_blk_server \
6461         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
6462         $(if test "$default_features" = no; then echo "-Dauto_features=disabled"; fi) \
6463         $cross_arg \
6464         "$PWD" "$source_path"
6465
6466 if test "$?" -ne 0 ; then
6467     error_exit "meson setup failed"
6468 fi
6469 fi
6470
6471 if test -n "${deprecated_features}"; then
6472     echo "Warning, deprecated features enabled."
6473     echo "Please see docs/system/deprecated.rst"
6474     echo "  features: ${deprecated_features}"
6475 fi
6476
6477 # Save the configure command line for later reuse.
6478 cat <<EOD >config.status
6479 #!/bin/sh
6480 # Generated by configure.
6481 # Run this file to recreate the current configuration.
6482 # Compiler output produced by configure, useful for debugging
6483 # configure, is in config.log if it exists.
6484 EOD
6485
6486 preserve_env() {
6487     envname=$1
6488
6489     eval envval=\$$envname
6490
6491     if test -n "$envval"
6492     then
6493         echo "$envname='$envval'" >> config.status
6494         echo "export $envname" >> config.status
6495     else
6496         echo "unset $envname" >> config.status
6497     fi
6498 }
6499
6500 # Preserve various env variables that influence what
6501 # features/build target configure will detect
6502 preserve_env AR
6503 preserve_env AS
6504 preserve_env CC
6505 preserve_env CPP
6506 preserve_env CXX
6507 preserve_env INSTALL
6508 preserve_env LD
6509 preserve_env LD_LIBRARY_PATH
6510 preserve_env LIBTOOL
6511 preserve_env MAKE
6512 preserve_env NM
6513 preserve_env OBJCOPY
6514 preserve_env PATH
6515 preserve_env PKG_CONFIG
6516 preserve_env PKG_CONFIG_LIBDIR
6517 preserve_env PKG_CONFIG_PATH
6518 preserve_env PYTHON
6519 preserve_env SDL2_CONFIG
6520 preserve_env SMBD
6521 preserve_env STRIP
6522 preserve_env WINDRES
6523
6524 printf "exec" >>config.status
6525 for i in "$0" "$@"; do
6526   test "$i" = --skip-meson || printf " %s" "$(quote_sh "$i")" >>config.status
6527 done
6528 echo ' "$@"' >>config.status
6529 chmod +x config.status
6530
6531 rm -r "$TMPDIR1"