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 print_error() {
  93     (echo
  94     echo "ERROR: $1"
  95     while test -n "$2"; do
  96         echo "       $2"
  97         shift
  98     done
  99     echo) >&2
 100 }
 101
 102 error_exit() {
 103     print_error "$@"
 104     exit 1
 105 }
 106
 107 do_compiler() {
 108     # Run the compiler, capturing its output to the log. First argument
 109     # is compiler binary to execute.
 110     local compiler="$1"
 111     shift
 112     if test -n "$BASH_VERSION"; then eval '
 113         echo >>config.log "
 114 funcs: ${FUNCNAME[*]}
 115 lines: ${BASH_LINENO[*]}"
 116     '; fi
 117     echo $compiler "$@" >> config.log
 118     $compiler "$@" >> config.log 2>&1 || return $?
 119     # Test passed. If this is an --enable-werror build, rerun
 120     # the test with -Werror and bail out if it fails. This
 121     # makes warning-generating-errors in configure test code
 122     # obvious to developers.
 123     if test "$werror" != "yes"; then
 124         return 0
 125     fi
 126     # Don't bother rerunning the compile if we were already using -Werror
 127     case "$*" in
 128         *-Werror*)
 129            return 0
 130         ;;
 131     esac
 132     echo $compiler -Werror "$@" >> config.log
 133     $compiler -Werror "$@" >> config.log 2>&1 && return $?
 134     error_exit "configure test passed without -Werror but failed with -Werror." \
 135         "This is probably a bug in the configure script. The failing command" \
 136         "will be at the bottom of config.log." \
 137         "You can run configure with --disable-werror to bypass this check."
 138 }
 139
 140 do_cc() {
 141     do_compiler "$cc" "$@"
 142 }
 143
 144 do_cxx() {
 145     do_compiler "$cxx" "$@"
 146 }
 147
 148 # Append $2 to the variable named $1, with space separation
 149 add_to() {
 150     eval $1=\${$1:+\"\$$1 \"}\$2
 151 }
 152
 153 update_cxxflags() {
 154     # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
 155     # options which some versions of GCC's C++ compiler complain about
 156     # because they only make sense for C programs.
 157     QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CXXFLAGS=$(echo "$CFLAGS" | sed s/-std=gnu99/-std=gnu++11/)
 159     for arg in $QEMU_CFLAGS; do
 160         case $arg in
 161             -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
 162             -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
 163                 ;;
 164             *)
 165                 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
 166                 ;;
 167         esac
 168     done
 169 }
 170
 171 compile_object() {
 172   local_cflags="$1"
 173   do_cc $CFLAGS $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
 174 }
 175
 176 compile_prog() {
 177   local_cflags="$1"
 178   local_ldflags="$2"
 179   do_cc $CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $QEMU_LDFLAGS $local_ldflags
 180 }
 181
 182 # symbolically link $1 to $2.  Portable version of "ln -sf".
 183 symlink() {
 184   rm -rf "$2"
 185   mkdir -p "$(dirname "$2")"
 186   ln -s "$1" "$2"
 187 }
 188
 189 # check whether a command is available to this shell (may be either an
 190 # executable or a builtin)
 191 has() {
 192     type "$1" >/dev/null 2>&1
 193 }
 194
 195 version_ge () {
 196     local_ver1=`echo $1 | tr . ' '`
 197     local_ver2=`echo $2 | tr . ' '`
 198     while true; do
 199         set x $local_ver1
 200         local_first=${2-0}
 201         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 202         shift ${2:+2}
 203         local_ver1=$*
 204         set x $local_ver2
 205         # the second argument finished, the first must be greater or equal
 206         test $# = 1 && return 0
 207         test $local_first -lt $2 && return 1
 208         test $local_first -gt $2 && return 0
 209         shift ${2:+2}
 210         local_ver2=$*
 211     done
 212 }
 213
 214 have_backend () {
 215     echo "$trace_backends" | grep "$1" >/dev/null
 216 }
 217
 218 glob() {
 219     eval test -z '"${1#'"$2"'}"'
 220 }
 221
 222 supported_hax_target() {
 223     test "$hax" = "yes" || return 1
 224     glob "$1" "*-softmmu" || return 1
 225     case "${1%-softmmu}" in
 226         i386|x86_64)
 227             return 0
 228         ;;
 229     esac
 230     return 1
 231 }
 232
 233 supported_kvm_target() {
 234     test "$kvm" = "yes" || return 1
 235     glob "$1" "*-softmmu" || return 1
 236     case "${1%-softmmu}:$cpu" in
 237         aarch64:aarch64 | \
 238         i386:i386 | i386:x86_64 | i386:x32 | \
 239         x86_64:i386 | x86_64:x86_64 | x86_64:x32 | \
 240         mips:mips | mipsel:mips | mips64:mips | mips64el:mips | \
 241         ppc:ppc | ppc64:ppc | ppc:ppc64 | ppc64:ppc64 | ppc64:ppc64le | \
 242         s390x:s390x)
 243             return 0
 244         ;;
 245     esac
 246     return 1
 247 }
 248
 249 supported_xen_target() {
 250     test "$xen" = "yes" || return 1
 251     glob "$1" "*-softmmu" || return 1
 252     # Only i386 and x86_64 provide the xenpv machine.
 253     case "${1%-softmmu}" in
 254         i386|x86_64)
 255             return 0
 256         ;;
 257     esac
 258     return 1
 259 }
 260
 261 supported_hvf_target() {
 262     test "$hvf" = "yes" || return 1
 263     glob "$1" "*-softmmu" || return 1
 264     case "${1%-softmmu}" in
 265         x86_64)
 266             return 0
 267         ;;
 268     esac
 269     return 1
 270 }
 271
 272 supported_whpx_target() {
 273     test "$whpx" = "yes" || return 1
 274     glob "$1" "*-softmmu" || return 1
 275     case "${1%-softmmu}" in
 276         i386|x86_64)
 277             return 0
 278         ;;
 279     esac
 280     return 1
 281 }
 282
 283 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
 284 deprecated_features=""
 285
 286 supported_target() {
 287     case "$1" in
 288         *-softmmu)
 289             ;;
 290         *-linux-user)
 291             if test "$linux" != "yes"; then
 292                 print_error "Target '$target' is only available on a Linux host"
 293                 return 1
 294             fi
 295             ;;
 296         *-bsd-user)
 297             if test "$bsd" != "yes"; then
 298                 print_error "Target '$target' is only available on a BSD host"
 299                 return 1
 300             fi
 301             ;;
 302         *)
 303             print_error "Invalid target name '$target'"
 304             return 1
 305             ;;
 306     esac
 307
 308     # if a deprecated target is enabled we note it here
 309     if echo "$deprecated_targets_list" | grep -q "$1"; then
 310         add_to deprecated_features $1
 311     fi
 312
 313     test "$tcg" = "yes" && return 0
 314     supported_kvm_target "$1" && return 0
 315     supported_xen_target "$1" && return 0
 316     supported_hax_target "$1" && return 0
 317     supported_hvf_target "$1" && return 0
 318     supported_whpx_target "$1" && return 0
 319     print_error "TCG disabled, but hardware accelerator not available for '$target'"
 320     return 1
 321 }
 322
 323
 324 ld_has() {
 325     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 326 }
 327
 328 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 329 then
 330   error_exit "main directory cannot contain spaces nor colons"
 331 fi
 332
 333 # default parameters
 334 cpu=""
 335 iasl="iasl"
 336 interp_prefix="/usr/gnemul/qemu-%M"
 337 static="no"
 338 cross_prefix=""
 339 audio_drv_list=""
 340 block_drv_rw_whitelist=""
 341 block_drv_ro_whitelist=""
 342 host_cc="cc"
 343 audio_win_int=""
 344 libs_qga=""
 345 debug_info="yes"
 346 stack_protector=""
 347 safe_stack=""
 348 use_containers="yes"
 349 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 350
 351 if test -e "$source_path/.git"
 352 then
 353     git_update=yes
 354     git_submodules="ui/keycodemapdb"
 355     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 356     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 357 else
 358     git_update=no
 359     git_submodules=""
 360
 361     if ! test -f "$source_path/ui/keycodemapdb/README"
 362     then
 363         echo
 364         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 365         echo
 366         echo "This is not a GIT checkout but module content appears to"
 367         echo "be missing. Do not use 'git archive' or GitHub download links"
 368         echo "to acquire QEMU source archives. Non-GIT builds are only"
 369         echo "supported with source archives linked from:"
 370         echo
 371         echo "  https://www.qemu.org/download/#source"
 372         echo
 373         echo "Developers working with GIT can use scripts/archive-source.sh"
 374         echo "if they need to create valid source archives."
 375         echo
 376         exit 1
 377     fi
 378 fi
 379 git="git"
 380
 381 # Don't accept a target_list environment variable.
 382 unset target_list
 383 unset target_list_exclude
 384
 385 # Default value for a variable defining feature "foo".
 386 #  * foo="no"  feature will only be used if --enable-foo arg is given
 387 #  * foo=""    feature will be searched for, and if found, will be used
 388 #              unless --disable-foo is given
 389 #  * foo="yes" this value will only be set by --enable-foo flag.
 390 #              feature will searched for,
 391 #              if not found, configure exits with error
 392 #
 393 # Always add --enable-foo and --disable-foo command line args.
 394 # Distributions want to ensure that several features are compiled in, and it
 395 # is impossible without a --enable-foo that exits if a feature is not found.
 396
 397 brlapi=""
 398 curl=""
 399 curses=""
 400 docs=""
 401 fdt=""
 402 netmap="no"
 403 sdl="auto"
 404 sdl_image="auto"
 405 virtfs=""
 406 mpath=""
 407 vnc="enabled"
 408 sparse="no"
 409 vde=""
 410 vnc_sasl="auto"
 411 vnc_jpeg="auto"
 412 vnc_png="auto"
 413 xkbcommon="auto"
 414 xen=""
 415 xen_ctrl_version=""
 416 xen_pci_passthrough=""
 417 linux_aio=""
 418 linux_io_uring=""
 419 cap_ng=""
 420 attr=""
 421 libattr=""
 422 xfs=""
 423 tcg="yes"
 424 membarrier=""
 425 vhost_net=""
 426 vhost_crypto=""
 427 vhost_scsi=""
 428 vhost_vsock=""
 429 vhost_user=""
 430 vhost_user_fs=""
 431 kvm="no"
 432 hax="no"
 433 hvf="no"
 434 whpx="no"
 435 rdma=""
 436 pvrdma=""
 437 gprof="no"
 438 debug_tcg="no"
 439 debug="no"
 440 sanitizers="no"
 441 tsan="no"
 442 fortify_source=""
 443 strip_opt="yes"
 444 tcg_interpreter="no"
 445 bigendian="no"
 446 mingw32="no"
 447 gcov="no"
 448 EXESUF=""
 449 HOST_DSOSUF=".so"
 450 modules="no"
 451 module_upgrades="no"
 452 prefix="/usr/local"
 453 qemu_suffix="qemu"
 454 slirp=""
 455 oss_lib=""
 456 bsd="no"
 457 linux="no"
 458 solaris="no"
 459 profiler="no"
 460 cocoa="no"
 461 softmmu="yes"
 462 linux_user="no"
 463 bsd_user="no"
 464 blobs="yes"
 465 edk2_blobs="no"
 466 pkgversion=""
 467 pie=""
 468 qom_cast_debug="yes"
 469 trace_backends="log"
 470 trace_file="trace"
 471 spice=""
 472 rbd=""
 473 smartcard=""
 474 u2f="auto"
 475 libusb=""
 476 usb_redir=""
 477 opengl=""
 478 opengl_dmabuf="no"
 479 cpuid_h="no"
 480 avx2_opt=""
 481 capstone=""
 482 lzo=""
 483 snappy=""
 484 bzip2=""
 485 lzfse=""
 486 zstd=""
 487 guest_agent=""
 488 guest_agent_with_vss="no"
 489 guest_agent_ntddscsi="no"
 490 guest_agent_msi=""
 491 vss_win32_sdk=""
 492 win_sdk="no"
 493 want_tools=""
 494 libiscsi=""
 495 libnfs=""
 496 coroutine=""
 497 coroutine_pool=""
 498 debug_stack_usage="no"
 499 crypto_afalg="no"
 500 seccomp=""
 501 glusterfs=""
 502 glusterfs_xlator_opt="no"
 503 glusterfs_discard="no"
 504 glusterfs_fallocate="no"
 505 glusterfs_zerofill="no"
 506 glusterfs_ftruncate_has_stat="no"
 507 glusterfs_iocb_has_stat="no"
 508 gtk=""
 509 gtk_gl="no"
 510 tls_priority="NORMAL"
 511 gnutls=""
 512 nettle=""
 513 nettle_xts="no"
 514 gcrypt=""
 515 gcrypt_hmac="no"
 516 gcrypt_xts="no"
 517 qemu_private_xts="yes"
 518 auth_pam=""
 519 vte=""
 520 virglrenderer=""
 521 tpm=""
 522 libssh=""
 523 live_block_migration="yes"
 524 numa=""
 525 tcmalloc="no"
 526 jemalloc="no"
 527 replication="yes"
 528 bochs="yes"
 529 cloop="yes"
 530 dmg="yes"
 531 qcow1="yes"
 532 vdi="yes"
 533 vvfat="yes"
 534 qed="yes"
 535 parallels="yes"
 536 sheepdog="yes"
 537 libxml2=""
 538 debug_mutex="no"
 539 libpmem=""
 540 default_devices="yes"
 541 plugins="no"
 542 fuzzing="no"
 543 rng_none="no"
 544 secret_keyring=""
 545 libdaxctl=""
 546 meson=""
 547 ninja=""
 548 skip_meson=no
 549 gettext=""
 550
 551 bogus_os="no"
 552 malloc_trim=""
 553
 554 # parse CC options first
 555 for opt do
 556   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 557   case "$opt" in
 558   --cross-prefix=*) cross_prefix="$optarg"
 559   ;;
 560   --cc=*) CC="$optarg"
 561   ;;
 562   --cxx=*) CXX="$optarg"
 563   ;;
 564   --cpu=*) cpu="$optarg"
 565   ;;
 566   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 567                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 568   ;;
 569   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 570   ;;
 571   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 572                      EXTRA_LDFLAGS="$optarg"
 573   ;;
 574   --enable-debug-info) debug_info="yes"
 575   ;;
 576   --disable-debug-info) debug_info="no"
 577   ;;
 578   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 579   ;;
 580   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 581                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 582                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 583   ;;
 584   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 585                 cc_archs="$cc_archs $cc_arch"
 586                 eval "cross_cc_${cc_arch}=\$optarg"
 587                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 588   ;;
 589   esac
 590 done
 591 # OS specific
 592 # Using uname is really, really broken.  Once we have the right set of checks
 593 # we can eliminate its usage altogether.
 594
 595 # Preferred compiler:
 596 #  ${CC} (if set)
 597 #  ${cross_prefix}gcc (if cross-prefix specified)
 598 #  system compiler
 599 if test -z "${CC}${cross_prefix}"; then
 600   cc="$host_cc"
 601 else
 602   cc="${CC-${cross_prefix}gcc}"
 603 fi
 604
 605 if test -z "${CXX}${cross_prefix}"; then
 606   cxx="c++"
 607 else
 608   cxx="${CXX-${cross_prefix}g++}"
 609 fi
 610
 611 ar="${AR-${cross_prefix}ar}"
 612 as="${AS-${cross_prefix}as}"
 613 ccas="${CCAS-$cc}"
 614 cpp="${CPP-$cc -E}"
 615 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 616 ld="${LD-${cross_prefix}ld}"
 617 ranlib="${RANLIB-${cross_prefix}ranlib}"
 618 nm="${NM-${cross_prefix}nm}"
 619 strip="${STRIP-${cross_prefix}strip}"
 620 windres="${WINDRES-${cross_prefix}windres}"
 621 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 622 query_pkg_config() {
 623     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 624 }
 625 pkg_config=query_pkg_config
 626 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 627
 628 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 629 ARFLAGS="${ARFLAGS-rv}"
 630
 631 # default flags for all hosts
 632 # We use -fwrapv to tell the compiler that we require a C dialect where
 633 # left shift of signed integers is well defined and has the expected
 634 # 2s-complement style results. (Both clang and gcc agree that it
 635 # provides these semantics.)
 636 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 637 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 638 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 639 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 640 QEMU_INCLUDES="-iquote . -iquote ${source_path} -iquote ${source_path}/accel/tcg -iquote ${source_path}/include"
 641 QEMU_INCLUDES="$QEMU_INCLUDES -iquote ${source_path}/disas/libvixl"
 642 CFLAGS="-std=gnu99 -Wall"
 643
 644
 645 check_define() {
 646 cat > $TMPC <<EOF
 647 #if !defined($1)
 648 #error $1 not defined
 649 #endif
 650 int main(void) { return 0; }
 651 EOF
 652   compile_object
 653 }
 654
 655 check_include() {
 656 cat > $TMPC <<EOF
 657 #include <$1>
 658 int main(void) { return 0; }
 659 EOF
 660   compile_object
 661 }
 662
 663 write_c_skeleton() {
 664     cat > $TMPC <<EOF
 665 int main(void) { return 0; }
 666 EOF
 667 }
 668
 669 write_c_fuzzer_skeleton() {
 670     cat > $TMPC <<EOF
 671 #include <stdint.h>
 672 #include <sys/types.h>
 673 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 674 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 675 EOF
 676 }
 677
 678 if check_define __linux__ ; then
 679   targetos="Linux"
 680 elif check_define _WIN32 ; then
 681   targetos='MINGW32'
 682 elif check_define __OpenBSD__ ; then
 683   targetos='OpenBSD'
 684 elif check_define __sun__ ; then
 685   targetos='SunOS'
 686 elif check_define __HAIKU__ ; then
 687   targetos='Haiku'
 688 elif check_define __FreeBSD__ ; then
 689   targetos='FreeBSD'
 690 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 691   targetos='GNU/kFreeBSD'
 692 elif check_define __DragonFly__ ; then
 693   targetos='DragonFly'
 694 elif check_define __NetBSD__; then
 695   targetos='NetBSD'
 696 elif check_define __APPLE__; then
 697   targetos='Darwin'
 698 else
 699   # This is a fatal error, but don't report it yet, because we
 700   # might be going to just print the --help text, or it might
 701   # be the result of a missing compiler.
 702   targetos='bogus'
 703   bogus_os='yes'
 704 fi
 705
 706 # Some host OSes need non-standard checks for which CPU to use.
 707 # Note that these checks are broken for cross-compilation: if you're
 708 # cross-compiling to one of these OSes then you'll need to specify
 709 # the correct CPU with the --cpu option.
 710 case $targetos in
 711 Darwin)
 712   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 713   # run 64-bit userspace code.
 714   # If the user didn't specify a CPU explicitly and the kernel says this is
 715   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 716   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 717     cpu="x86_64"
 718   fi
 719   ;;
 720 SunOS)
 721   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 722   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 723     cpu="x86_64"
 724   fi
 725 esac
 726
 727 if test ! -z "$cpu" ; then
 728   # command line argument
 729   :
 730 elif check_define __i386__ ; then
 731   cpu="i386"
 732 elif check_define __x86_64__ ; then
 733   if check_define __ILP32__ ; then
 734     cpu="x32"
 735   else
 736     cpu="x86_64"
 737   fi
 738 elif check_define __sparc__ ; then
 739   if check_define __arch64__ ; then
 740     cpu="sparc64"
 741   else
 742     cpu="sparc"
 743   fi
 744 elif check_define _ARCH_PPC ; then
 745   if check_define _ARCH_PPC64 ; then
 746     if check_define _LITTLE_ENDIAN ; then
 747       cpu="ppc64le"
 748     else
 749       cpu="ppc64"
 750     fi
 751   else
 752     cpu="ppc"
 753   fi
 754 elif check_define __mips__ ; then
 755   cpu="mips"
 756 elif check_define __s390__ ; then
 757   if check_define __s390x__ ; then
 758     cpu="s390x"
 759   else
 760     cpu="s390"
 761   fi
 762 elif check_define __riscv ; then
 763   if check_define _LP64 ; then
 764     cpu="riscv64"
 765   else
 766     cpu="riscv32"
 767   fi
 768 elif check_define __arm__ ; then
 769   cpu="arm"
 770 elif check_define __aarch64__ ; then
 771   cpu="aarch64"
 772 else
 773   cpu=$(uname -m)
 774 fi
 775
 776 ARCH=
 777 # Normalise host CPU name and set ARCH.
 778 # Note that this case should only have supported host CPUs, not guests.
 779 case "$cpu" in
 780   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 781   ;;
 782   ppc64le)
 783     ARCH="ppc64"
 784   ;;
 785   i386|i486|i586|i686|i86pc|BePC)
 786     cpu="i386"
 787   ;;
 788   x86_64|amd64)
 789     cpu="x86_64"
 790   ;;
 791   armv*b|armv*l|arm)
 792     cpu="arm"
 793   ;;
 794   aarch64)
 795     cpu="aarch64"
 796   ;;
 797   mips*)
 798     cpu="mips"
 799   ;;
 800   sparc|sun4[cdmuv])
 801     cpu="sparc"
 802   ;;
 803   *)
 804     # This will result in either an error or falling back to TCI later
 805     ARCH=unknown
 806   ;;
 807 esac
 808 if test -z "$ARCH"; then
 809   ARCH="$cpu"
 810 fi
 811
 812 # OS specific
 813
 814 # host *BSD for user mode
 815 HOST_VARIANT_DIR=""
 816
 817 case $targetos in
 818 MINGW32*)
 819   mingw32="yes"
 820   hax="yes"
 821   whpx=""
 822   vhost_user="no"
 823   audio_possible_drivers="dsound sdl"
 824   if check_include dsound.h; then
 825     audio_drv_list="dsound"
 826   else
 827     audio_drv_list=""
 828   fi
 829   supported_os="yes"
 830   pie="no"
 831 ;;
 832 GNU/kFreeBSD)
 833   bsd="yes"
 834   audio_drv_list="oss try-sdl"
 835   audio_possible_drivers="oss sdl pa"
 836 ;;
 837 FreeBSD)
 838   bsd="yes"
 839   make="${MAKE-gmake}"
 840   audio_drv_list="oss try-sdl"
 841   audio_possible_drivers="oss sdl pa"
 842   # needed for kinfo_getvmmap(3) in libutil.h
 843   netmap=""  # enable netmap autodetect
 844   HOST_VARIANT_DIR="freebsd"
 845 ;;
 846 DragonFly)
 847   bsd="yes"
 848   make="${MAKE-gmake}"
 849   audio_drv_list="oss try-sdl"
 850   audio_possible_drivers="oss sdl pa"
 851   HOST_VARIANT_DIR="dragonfly"
 852 ;;
 853 NetBSD)
 854   bsd="yes"
 855   hax="yes"
 856   make="${MAKE-gmake}"
 857   audio_drv_list="oss try-sdl"
 858   audio_possible_drivers="oss sdl"
 859   oss_lib="-lossaudio"
 860   HOST_VARIANT_DIR="netbsd"
 861 ;;
 862 OpenBSD)
 863   bsd="yes"
 864   make="${MAKE-gmake}"
 865   audio_drv_list="try-sdl"
 866   audio_possible_drivers="sdl"
 867   HOST_VARIANT_DIR="openbsd"
 868 ;;
 869 Darwin)
 870   bsd="yes"
 871   darwin="yes"
 872   hax="yes"
 873   hvf="yes"
 874   if [ "$cpu" = "x86_64" ] ; then
 875     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 876     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 877   fi
 878   cocoa="yes"
 879   audio_drv_list="coreaudio try-sdl"
 880   audio_possible_drivers="coreaudio sdl"
 881   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 882   # Disable attempts to use ObjectiveC features in os/object.h since they
 883   # won't work when we're compiling with gcc as a C compiler.
 884   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 885   HOST_VARIANT_DIR="darwin"
 886 ;;
 887 SunOS)
 888   solaris="yes"
 889   make="${MAKE-gmake}"
 890   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 891   if test -f /usr/include/sys/soundcard.h ; then
 892     audio_drv_list="oss try-sdl"
 893   fi
 894   audio_possible_drivers="oss sdl"
 895 # needed for CMSG_ macros in sys/socket.h
 896   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 897 # needed for TIOCWIN* defines in termios.h
 898   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 899 ;;
 900 Haiku)
 901   haiku="yes"
 902   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -DBSD_SOURCE $QEMU_CFLAGS"
 903 ;;
 904 Linux)
 905   audio_drv_list="try-pa oss"
 906   audio_possible_drivers="oss alsa sdl pa"
 907   linux="yes"
 908   linux_user="yes"
 909   kvm="yes"
 910   QEMU_INCLUDES="-isystem ${source_path}/linux-headers -Ilinux-headers $QEMU_INCLUDES"
 911   libudev="yes"
 912 ;;
 913 esac
 914
 915 if [ "$bsd" = "yes" ] ; then
 916   if [ "$darwin" != "yes" ] ; then
 917     bsd_user="yes"
 918   fi
 919 fi
 920
 921 : ${make=${MAKE-make}}
 922
 923 # We prefer python 3.x. A bare 'python' is traditionally
 924 # python 2.x, but some distros have it as python 3.x, so
 925 # we check that too
 926 python=
 927 explicit_python=no
 928 for binary in "${PYTHON-python3}" python
 929 do
 930     if has "$binary"
 931     then
 932         python=$(command -v "$binary")
 933         break
 934     fi
 935 done
 936
 937 sphinx_build=
 938 for binary in sphinx-build-3 sphinx-build
 939 do
 940     if has "$binary"
 941     then
 942         sphinx_build=$(command -v "$binary")
 943         break
 944     fi
 945 done
 946
 947 # Check for ancillary tools used in testing
 948 genisoimage=
 949 for binary in genisoimage mkisofs
 950 do
 951     if has $binary
 952     then
 953         genisoimage=$(command -v "$binary")
 954         break
 955     fi
 956 done
 957
 958 : ${smbd=${SMBD-/usr/sbin/smbd}}
 959
 960 # Default objcc to clang if available, otherwise use CC
 961 if has clang; then
 962   objcc=clang
 963 else
 964   objcc="$cc"
 965 fi
 966
 967 if test "$mingw32" = "yes" ; then
 968   EXESUF=".exe"
 969   HOST_DSOSUF=".dll"
 970   # MinGW needs -mthreads for TLS and macro _MT.
 971   CFLAGS="-mthreads $CFLAGS"
 972   write_c_skeleton;
 973   prefix="c:/Program Files/QEMU"
 974   qemu_suffix=""
 975   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 976 fi
 977
 978 werror=""
 979
 980 for opt do
 981   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 982   case "$opt" in
 983   --help|-h) show_help=yes
 984   ;;
 985   --version|-V) exec cat $source_path/VERSION
 986   ;;
 987   --prefix=*) prefix="$optarg"
 988   ;;
 989   --interp-prefix=*) interp_prefix="$optarg"
 990   ;;
 991   --cross-prefix=*)
 992   ;;
 993   --cc=*)
 994   ;;
 995   --host-cc=*) host_cc="$optarg"
 996   ;;
 997   --cxx=*)
 998   ;;
 999   --iasl=*) iasl="$optarg"
1000   ;;
1001   --objcc=*) objcc="$optarg"
1002   ;;
1003   --make=*) make="$optarg"
1004   ;;
1005   --install=*)
1006   ;;
1007   --python=*) python="$optarg" ; explicit_python=yes
1008   ;;
1009   --sphinx-build=*) sphinx_build="$optarg"
1010   ;;
1011   --skip-meson) skip_meson=yes
1012   ;;
1013   --meson=*) meson="$optarg"
1014   ;;
1015   --ninja=*) ninja="$optarg"
1016   ;;
1017   --smbd=*) smbd="$optarg"
1018   ;;
1019   --extra-cflags=*)
1020   ;;
1021   --extra-cxxflags=*)
1022   ;;
1023   --extra-ldflags=*)
1024   ;;
1025   --enable-debug-info)
1026   ;;
1027   --disable-debug-info)
1028   ;;
1029   --cross-cc-*)
1030   ;;
1031   --enable-modules)
1032       modules="yes"
1033   ;;
1034   --disable-modules)
1035       modules="no"
1036   ;;
1037   --disable-module-upgrades) module_upgrades="no"
1038   ;;
1039   --enable-module-upgrades) module_upgrades="yes"
1040   ;;
1041   --cpu=*)
1042   ;;
1043   --target-list=*) target_list="$optarg"
1044                    if test "$target_list_exclude"; then
1045                        error_exit "Can't mix --target-list with --target-list-exclude"
1046                    fi
1047   ;;
1048   --target-list-exclude=*) target_list_exclude="$optarg"
1049                    if test "$target_list"; then
1050                        error_exit "Can't mix --target-list-exclude with --target-list"
1051                    fi
1052   ;;
1053   --enable-trace-backends=*) trace_backends="$optarg"
1054   ;;
1055   # XXX: backwards compatibility
1056   --enable-trace-backend=*) trace_backends="$optarg"
1057   ;;
1058   --with-trace-file=*) trace_file="$optarg"
1059   ;;
1060   --with-default-devices) default_devices="yes"
1061   ;;
1062   --without-default-devices) default_devices="no"
1063   ;;
1064   --enable-gprof) gprof="yes"
1065   ;;
1066   --enable-gcov) gcov="yes"
1067   ;;
1068   --static)
1069     static="yes"
1070     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
1071   ;;
1072   --mandir=*) mandir="$optarg"
1073   ;;
1074   --bindir=*) bindir="$optarg"
1075   ;;
1076   --libdir=*) libdir="$optarg"
1077   ;;
1078   --libexecdir=*) libexecdir="$optarg"
1079   ;;
1080   --includedir=*) includedir="$optarg"
1081   ;;
1082   --datadir=*) datadir="$optarg"
1083   ;;
1084   --with-suffix=*) qemu_suffix="$optarg"
1085   ;;
1086   --docdir=*) qemu_docdir="$optarg"
1087   ;;
1088   --sysconfdir=*) sysconfdir="$optarg"
1089   ;;
1090   --localstatedir=*) local_statedir="$optarg"
1091   ;;
1092   --firmwarepath=*) firmwarepath="$optarg"
1093   ;;
1094   --host=*|--build=*|\
1095   --disable-dependency-tracking|\
1096   --sbindir=*|--sharedstatedir=*|\
1097   --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
1098   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
1099     # These switches are silently ignored, for compatibility with
1100     # autoconf-generated configure scripts. This allows QEMU's
1101     # configure to be used by RPM and similar macros that set
1102     # lots of directory switches by default.
1103   ;;
1104   --disable-sdl) sdl="disabled"
1105   ;;
1106   --enable-sdl) sdl="enabled"
1107   ;;
1108   --disable-sdl-image) sdl_image="disabled"
1109   ;;
1110   --enable-sdl-image) sdl_image="enabled"
1111   ;;
1112   --disable-qom-cast-debug) qom_cast_debug="no"
1113   ;;
1114   --enable-qom-cast-debug) qom_cast_debug="yes"
1115   ;;
1116   --disable-virtfs) virtfs="no"
1117   ;;
1118   --enable-virtfs) virtfs="yes"
1119   ;;
1120   --disable-mpath) mpath="no"
1121   ;;
1122   --enable-mpath) mpath="yes"
1123   ;;
1124   --disable-vnc) vnc="disabled"
1125   ;;
1126   --enable-vnc) vnc="enabled"
1127   ;;
1128   --disable-gettext) gettext="false"
1129   ;;
1130   --enable-gettext) gettext="true"
1131   ;;
1132   --oss-lib=*) oss_lib="$optarg"
1133   ;;
1134   --audio-drv-list=*) audio_drv_list="$optarg"
1135   ;;
1136   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1137   ;;
1138   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1139   ;;
1140   --enable-debug-tcg) debug_tcg="yes"
1141   ;;
1142   --disable-debug-tcg) debug_tcg="no"
1143   ;;
1144   --enable-debug)
1145       # Enable debugging options that aren't excessively noisy
1146       debug_tcg="yes"
1147       debug_mutex="yes"
1148       debug="yes"
1149       strip_opt="no"
1150       fortify_source="no"
1151   ;;
1152   --enable-sanitizers) sanitizers="yes"
1153   ;;
1154   --disable-sanitizers) sanitizers="no"
1155   ;;
1156   --enable-tsan) tsan="yes"
1157   ;;
1158   --disable-tsan) tsan="no"
1159   ;;
1160   --enable-sparse) sparse="yes"
1161   ;;
1162   --disable-sparse) sparse="no"
1163   ;;
1164   --disable-strip) strip_opt="no"
1165   ;;
1166   --disable-vnc-sasl) vnc_sasl="disabled"
1167   ;;
1168   --enable-vnc-sasl) vnc_sasl="enabled"
1169   ;;
1170   --disable-vnc-jpeg) vnc_jpeg="disabled"
1171   ;;
1172   --enable-vnc-jpeg) vnc_jpeg="enabled"
1173   ;;
1174   --disable-vnc-png) vnc_png="disabled"
1175   ;;
1176   --enable-vnc-png) vnc_png="enabled"
1177   ;;
1178   --disable-slirp) slirp="no"
1179   ;;
1180   --enable-slirp=git) slirp="git"
1181   ;;
1182   --enable-slirp=system) slirp="system"
1183   ;;
1184   --disable-vde) vde="no"
1185   ;;
1186   --enable-vde) vde="yes"
1187   ;;
1188   --disable-netmap) netmap="no"
1189   ;;
1190   --enable-netmap) netmap="yes"
1191   ;;
1192   --disable-xen) xen="no"
1193   ;;
1194   --enable-xen) xen="yes"
1195   ;;
1196   --disable-xen-pci-passthrough) xen_pci_passthrough="no"
1197   ;;
1198   --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
1199   ;;
1200   --disable-brlapi) brlapi="no"
1201   ;;
1202   --enable-brlapi) brlapi="yes"
1203   ;;
1204   --disable-kvm) kvm="no"
1205   ;;
1206   --enable-kvm) kvm="yes"
1207   ;;
1208   --disable-hax) hax="no"
1209   ;;
1210   --enable-hax) hax="yes"
1211   ;;
1212   --disable-hvf) hvf="no"
1213   ;;
1214   --enable-hvf) hvf="yes"
1215   ;;
1216   --disable-whpx) whpx="no"
1217   ;;
1218   --enable-whpx) whpx="yes"
1219   ;;
1220   --disable-tcg-interpreter) tcg_interpreter="no"
1221   ;;
1222   --enable-tcg-interpreter) tcg_interpreter="yes"
1223   ;;
1224   --disable-cap-ng)  cap_ng="no"
1225   ;;
1226   --enable-cap-ng) cap_ng="yes"
1227   ;;
1228   --disable-tcg) tcg="no"
1229   ;;
1230   --enable-tcg) tcg="yes"
1231   ;;
1232   --disable-malloc-trim) malloc_trim="no"
1233   ;;
1234   --enable-malloc-trim) malloc_trim="yes"
1235   ;;
1236   --disable-spice) spice="no"
1237   ;;
1238   --enable-spice) spice="yes"
1239   ;;
1240   --disable-libiscsi) libiscsi="no"
1241   ;;
1242   --enable-libiscsi) libiscsi="yes"
1243   ;;
1244   --disable-libnfs) libnfs="no"
1245   ;;
1246   --enable-libnfs) libnfs="yes"
1247   ;;
1248   --enable-profiler) profiler="yes"
1249   ;;
1250   --disable-cocoa) cocoa="no"
1251   ;;
1252   --enable-cocoa)
1253       cocoa="yes" ;
1254       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1255   ;;
1256   --disable-system) softmmu="no"
1257   ;;
1258   --enable-system) softmmu="yes"
1259   ;;
1260   --disable-user)
1261       linux_user="no" ;
1262       bsd_user="no" ;
1263   ;;
1264   --enable-user) ;;
1265   --disable-linux-user) linux_user="no"
1266   ;;
1267   --enable-linux-user) linux_user="yes"
1268   ;;
1269   --disable-bsd-user) bsd_user="no"
1270   ;;
1271   --enable-bsd-user) bsd_user="yes"
1272   ;;
1273   --enable-pie) pie="yes"
1274   ;;
1275   --disable-pie) pie="no"
1276   ;;
1277   --enable-werror) werror="yes"
1278   ;;
1279   --disable-werror) werror="no"
1280   ;;
1281   --enable-stack-protector) stack_protector="yes"
1282   ;;
1283   --disable-stack-protector) stack_protector="no"
1284   ;;
1285   --enable-safe-stack) safe_stack="yes"
1286   ;;
1287   --disable-safe-stack) safe_stack="no"
1288   ;;
1289   --disable-curses) curses="no"
1290   ;;
1291   --enable-curses) curses="yes"
1292   ;;
1293   --disable-iconv) iconv="no"
1294   ;;
1295   --enable-iconv) iconv="yes"
1296   ;;
1297   --disable-curl) curl="no"
1298   ;;
1299   --enable-curl) curl="yes"
1300   ;;
1301   --disable-fdt) fdt="no"
1302   ;;
1303   --enable-fdt) fdt="yes"
1304   ;;
1305   --disable-linux-aio) linux_aio="no"
1306   ;;
1307   --enable-linux-aio) linux_aio="yes"
1308   ;;
1309   --disable-linux-io-uring) linux_io_uring="no"
1310   ;;
1311   --enable-linux-io-uring) linux_io_uring="yes"
1312   ;;
1313   --disable-attr) attr="no"
1314   ;;
1315   --enable-attr) attr="yes"
1316   ;;
1317   --disable-membarrier) membarrier="no"
1318   ;;
1319   --enable-membarrier) membarrier="yes"
1320   ;;
1321   --disable-blobs) blobs="no"
1322   ;;
1323   --with-pkgversion=*) pkgversion="$optarg"
1324   ;;
1325   --with-coroutine=*) coroutine="$optarg"
1326   ;;
1327   --disable-coroutine-pool) coroutine_pool="no"
1328   ;;
1329   --enable-coroutine-pool) coroutine_pool="yes"
1330   ;;
1331   --enable-debug-stack-usage) debug_stack_usage="yes"
1332   ;;
1333   --enable-crypto-afalg) crypto_afalg="yes"
1334   ;;
1335   --disable-crypto-afalg) crypto_afalg="no"
1336   ;;
1337   --disable-docs) docs="no"
1338   ;;
1339   --enable-docs) docs="yes"
1340   ;;
1341   --disable-vhost-net) vhost_net="no"
1342   ;;
1343   --enable-vhost-net) vhost_net="yes"
1344   ;;
1345   --disable-vhost-crypto) vhost_crypto="no"
1346   ;;
1347   --enable-vhost-crypto) vhost_crypto="yes"
1348   ;;
1349   --disable-vhost-scsi) vhost_scsi="no"
1350   ;;
1351   --enable-vhost-scsi) vhost_scsi="yes"
1352   ;;
1353   --disable-vhost-vsock) vhost_vsock="no"
1354   ;;
1355   --enable-vhost-vsock) vhost_vsock="yes"
1356   ;;
1357   --disable-vhost-user-fs) vhost_user_fs="no"
1358   ;;
1359   --enable-vhost-user-fs) vhost_user_fs="yes"
1360   ;;
1361   --disable-opengl) opengl="no"
1362   ;;
1363   --enable-opengl) opengl="yes"
1364   ;;
1365   --disable-rbd) rbd="no"
1366   ;;
1367   --enable-rbd) rbd="yes"
1368   ;;
1369   --disable-xfsctl) xfs="no"
1370   ;;
1371   --enable-xfsctl) xfs="yes"
1372   ;;
1373   --disable-smartcard) smartcard="no"
1374   ;;
1375   --enable-smartcard) smartcard="yes"
1376   ;;
1377   --disable-u2f) u2f="disabled"
1378   ;;
1379   --enable-u2f) u2f="enabled"
1380   ;;
1381   --disable-libusb) libusb="no"
1382   ;;
1383   --enable-libusb) libusb="yes"
1384   ;;
1385   --disable-usb-redir) usb_redir="no"
1386   ;;
1387   --enable-usb-redir) usb_redir="yes"
1388   ;;
1389   --disable-zlib-test)
1390   ;;
1391   --disable-lzo) lzo="no"
1392   ;;
1393   --enable-lzo) lzo="yes"
1394   ;;
1395   --disable-snappy) snappy="no"
1396   ;;
1397   --enable-snappy) snappy="yes"
1398   ;;
1399   --disable-bzip2) bzip2="no"
1400   ;;
1401   --enable-bzip2) bzip2="yes"
1402   ;;
1403   --enable-lzfse) lzfse="yes"
1404   ;;
1405   --disable-lzfse) lzfse="no"
1406   ;;
1407   --disable-zstd) zstd="no"
1408   ;;
1409   --enable-zstd) zstd="yes"
1410   ;;
1411   --enable-guest-agent) guest_agent="yes"
1412   ;;
1413   --disable-guest-agent) guest_agent="no"
1414   ;;
1415   --enable-guest-agent-msi) guest_agent_msi="yes"
1416   ;;
1417   --disable-guest-agent-msi) guest_agent_msi="no"
1418   ;;
1419   --with-vss-sdk) vss_win32_sdk=""
1420   ;;
1421   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1422   ;;
1423   --without-vss-sdk) vss_win32_sdk="no"
1424   ;;
1425   --with-win-sdk) win_sdk=""
1426   ;;
1427   --with-win-sdk=*) win_sdk="$optarg"
1428   ;;
1429   --without-win-sdk) win_sdk="no"
1430   ;;
1431   --enable-tools) want_tools="yes"
1432   ;;
1433   --disable-tools) want_tools="no"
1434   ;;
1435   --enable-seccomp) seccomp="yes"
1436   ;;
1437   --disable-seccomp) seccomp="no"
1438   ;;
1439   --disable-glusterfs) glusterfs="no"
1440   ;;
1441   --disable-avx2) avx2_opt="no"
1442   ;;
1443   --enable-avx2) avx2_opt="yes"
1444   ;;
1445   --disable-avx512f) avx512f_opt="no"
1446   ;;
1447   --enable-avx512f) avx512f_opt="yes"
1448   ;;
1449
1450   --enable-glusterfs) glusterfs="yes"
1451   ;;
1452   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1453       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1454   ;;
1455   --enable-vhdx|--disable-vhdx)
1456       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1457   ;;
1458   --enable-uuid|--disable-uuid)
1459       echo "$0: $opt is obsolete, UUID support is always built" >&2
1460   ;;
1461   --disable-gtk) gtk="no"
1462   ;;
1463   --enable-gtk) gtk="yes"
1464   ;;
1465   --tls-priority=*) tls_priority="$optarg"
1466   ;;
1467   --disable-gnutls) gnutls="no"
1468   ;;
1469   --enable-gnutls) gnutls="yes"
1470   ;;
1471   --disable-nettle) nettle="no"
1472   ;;
1473   --enable-nettle) nettle="yes"
1474   ;;
1475   --disable-gcrypt) gcrypt="no"
1476   ;;
1477   --enable-gcrypt) gcrypt="yes"
1478   ;;
1479   --disable-auth-pam) auth_pam="no"
1480   ;;
1481   --enable-auth-pam) auth_pam="yes"
1482   ;;
1483   --enable-rdma) rdma="yes"
1484   ;;
1485   --disable-rdma) rdma="no"
1486   ;;
1487   --enable-pvrdma) pvrdma="yes"
1488   ;;
1489   --disable-pvrdma) pvrdma="no"
1490   ;;
1491   --disable-vte) vte="no"
1492   ;;
1493   --enable-vte) vte="yes"
1494   ;;
1495   --disable-virglrenderer) virglrenderer="no"
1496   ;;
1497   --enable-virglrenderer) virglrenderer="yes"
1498   ;;
1499   --disable-tpm) tpm="no"
1500   ;;
1501   --enable-tpm) tpm="yes"
1502   ;;
1503   --disable-libssh) libssh="no"
1504   ;;
1505   --enable-libssh) libssh="yes"
1506   ;;
1507   --disable-live-block-migration) live_block_migration="no"
1508   ;;
1509   --enable-live-block-migration) live_block_migration="yes"
1510   ;;
1511   --disable-numa) numa="no"
1512   ;;
1513   --enable-numa) numa="yes"
1514   ;;
1515   --disable-libxml2) libxml2="no"
1516   ;;
1517   --enable-libxml2) libxml2="yes"
1518   ;;
1519   --disable-tcmalloc) tcmalloc="no"
1520   ;;
1521   --enable-tcmalloc) tcmalloc="yes"
1522   ;;
1523   --disable-jemalloc) jemalloc="no"
1524   ;;
1525   --enable-jemalloc) jemalloc="yes"
1526   ;;
1527   --disable-replication) replication="no"
1528   ;;
1529   --enable-replication) replication="yes"
1530   ;;
1531   --disable-bochs) bochs="no"
1532   ;;
1533   --enable-bochs) bochs="yes"
1534   ;;
1535   --disable-cloop) cloop="no"
1536   ;;
1537   --enable-cloop) cloop="yes"
1538   ;;
1539   --disable-dmg) dmg="no"
1540   ;;
1541   --enable-dmg) dmg="yes"
1542   ;;
1543   --disable-qcow1) qcow1="no"
1544   ;;
1545   --enable-qcow1) qcow1="yes"
1546   ;;
1547   --disable-vdi) vdi="no"
1548   ;;
1549   --enable-vdi) vdi="yes"
1550   ;;
1551   --disable-vvfat) vvfat="no"
1552   ;;
1553   --enable-vvfat) vvfat="yes"
1554   ;;
1555   --disable-qed) qed="no"
1556   ;;
1557   --enable-qed) qed="yes"
1558   ;;
1559   --disable-parallels) parallels="no"
1560   ;;
1561   --enable-parallels) parallels="yes"
1562   ;;
1563   --disable-sheepdog) sheepdog="no"
1564   ;;
1565   --enable-sheepdog) sheepdog="yes"
1566   ;;
1567   --disable-vhost-user) vhost_user="no"
1568   ;;
1569   --enable-vhost-user) vhost_user="yes"
1570   ;;
1571   --disable-vhost-vdpa) vhost_vdpa="no"
1572   ;;
1573   --enable-vhost-vdpa) vhost_vdpa="yes"
1574   ;;
1575   --disable-vhost-kernel) vhost_kernel="no"
1576   ;;
1577   --enable-vhost-kernel) vhost_kernel="yes"
1578   ;;
1579   --disable-capstone) capstone="no"
1580   ;;
1581   --enable-capstone) capstone="yes"
1582   ;;
1583   --enable-capstone=git) capstone="git"
1584   ;;
1585   --enable-capstone=system) capstone="system"
1586   ;;
1587   --with-git=*) git="$optarg"
1588   ;;
1589   --enable-git-update) git_update=yes
1590   ;;
1591   --disable-git-update) git_update=no
1592   ;;
1593   --enable-debug-mutex) debug_mutex=yes
1594   ;;
1595   --disable-debug-mutex) debug_mutex=no
1596   ;;
1597   --enable-libpmem) libpmem=yes
1598   ;;
1599   --disable-libpmem) libpmem=no
1600   ;;
1601   --enable-xkbcommon) xkbcommon="enabled"
1602   ;;
1603   --disable-xkbcommon) xkbcommon="disabled"
1604   ;;
1605   --enable-plugins) plugins="yes"
1606   ;;
1607   --disable-plugins) plugins="no"
1608   ;;
1609   --enable-containers) use_containers="yes"
1610   ;;
1611   --disable-containers) use_containers="no"
1612   ;;
1613   --enable-fuzzing) fuzzing=yes
1614   ;;
1615   --disable-fuzzing) fuzzing=no
1616   ;;
1617   --gdb=*) gdb_bin="$optarg"
1618   ;;
1619   --enable-rng-none) rng_none=yes
1620   ;;
1621   --disable-rng-none) rng_none=no
1622   ;;
1623   --enable-keyring) secret_keyring="yes"
1624   ;;
1625   --disable-keyring) secret_keyring="no"
1626   ;;
1627   --enable-libdaxctl) libdaxctl=yes
1628   ;;
1629   --disable-libdaxctl) libdaxctl=no
1630   ;;
1631   *)
1632       echo "ERROR: unknown option $opt"
1633       echo "Try '$0 --help' for more information"
1634       exit 1
1635   ;;
1636   esac
1637 done
1638
1639 firmwarepath="${firmwarepath:-$prefix/share/qemu-firmware}"
1640 libdir="${libdir:-$prefix/lib}"
1641 libexecdir="${libexecdir:-$prefix/libexec}"
1642 includedir="${includedir:-$prefix/include}"
1643
1644 if test "$mingw32" = "yes" ; then
1645     mandir="$prefix"
1646     datadir="$prefix"
1647     docdir="$prefix"
1648     bindir="$prefix"
1649     sysconfdir="$prefix"
1650     local_statedir=
1651 else
1652     mandir="${mandir:-$prefix/share/man}"
1653     datadir="${datadir:-$prefix/share}"
1654     docdir="${docdir:-$prefix/share/doc}"
1655     bindir="${bindir:-$prefix/bin}"
1656     sysconfdir="${sysconfdir:-$prefix/etc}"
1657     local_statedir="${local_statedir:-$prefix/var}"
1658 fi
1659
1660 case "$cpu" in
1661     ppc)
1662            CPU_CFLAGS="-m32"
1663            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1664            ;;
1665     ppc64)
1666            CPU_CFLAGS="-m64"
1667            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1668            ;;
1669     sparc)
1670            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1671            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1672            ;;
1673     sparc64)
1674            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1675            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1676            ;;
1677     s390)
1678            CPU_CFLAGS="-m31"
1679            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1680            ;;
1681     s390x)
1682            CPU_CFLAGS="-m64"
1683            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1684            ;;
1685     i386)
1686            CPU_CFLAGS="-m32"
1687            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1688            ;;
1689     x86_64)
1690            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1691            # If we truly care, we should simply detect this case at
1692            # runtime and generate the fallback to serial emulation.
1693            CPU_CFLAGS="-m64 -mcx16"
1694            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1695            ;;
1696     x32)
1697            CPU_CFLAGS="-mx32"
1698            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1699            ;;
1700     # No special flags required for other host CPUs
1701 esac
1702
1703 eval "cross_cc_${cpu}=\$host_cc"
1704 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1705 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1706
1707 # For user-mode emulation the host arch has to be one we explicitly
1708 # support, even if we're using TCI.
1709 if [ "$ARCH" = "unknown" ]; then
1710   bsd_user="no"
1711   linux_user="no"
1712 fi
1713
1714 if [ "$bsd_user" = "no" -a "$linux_user" = "no" -a "$softmmu" = "no" ] ; then
1715   tcg="no"
1716 fi
1717
1718 default_target_list=""
1719
1720 mak_wilds=""
1721
1722 if [ "$softmmu" = "yes" ]; then
1723     mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1724 fi
1725 if [ "$linux_user" = "yes" ]; then
1726     mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1727 fi
1728 if [ "$bsd_user" = "yes" ]; then
1729     mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1730 fi
1731
1732 # If the user doesn't explicitly specify a deprecated target we will
1733 # skip it.
1734 if test -z "$target_list"; then
1735     if test -z "$target_list_exclude"; then
1736         target_list_exclude="$deprecated_targets_list"
1737     else
1738         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1739     fi
1740 fi
1741
1742 for config in $mak_wilds; do
1743     target="$(basename "$config" .mak)"
1744     if echo "$target_list_exclude" | grep -vq "$target"; then
1745         default_target_list="${default_target_list} $target"
1746     fi
1747 done
1748
1749 # Enumerate public trace backends for --help output
1750 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1751
1752 if test x"$show_help" = x"yes" ; then
1753 cat << EOF
1754
1755 Usage: configure [options]
1756 Options: [defaults in brackets after descriptions]
1757
1758 Standard options:
1759   --help                   print this message
1760   --prefix=PREFIX          install in PREFIX [$prefix]
1761   --interp-prefix=PREFIX   where to find shared libraries, etc.
1762                            use %M for cpu name [$interp_prefix]
1763   --target-list=LIST       set target list (default: build everything)
1764 $(echo Available targets: $default_target_list | \
1765   fold -s -w 53 | sed -e 's/^/                           /')
1766   --target-list-exclude=LIST exclude a set of targets from the default target-list
1767
1768 Advanced options (experts only):
1769   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1770   --cc=CC                  use C compiler CC [$cc]
1771   --iasl=IASL              use ACPI compiler IASL [$iasl]
1772   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1773                            build time
1774   --cxx=CXX                use C++ compiler CXX [$cxx]
1775   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1776   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1777   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1778   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1779   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1780   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1781   --make=MAKE              use specified make [$make]
1782   --python=PYTHON          use specified python [$python]
1783   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1784   --meson=MESON            use specified meson [$meson]
1785   --ninja=NINJA            use specified ninja [$ninja]
1786   --smbd=SMBD              use specified smbd [$smbd]
1787   --with-git=GIT           use specified git [$git]
1788   --static                 enable static build [$static]
1789   --mandir=PATH            install man pages in PATH
1790   --datadir=PATH           install firmware in PATH/$qemu_suffix
1791   --docdir=PATH            install documentation in PATH/$qemu_suffix
1792   --bindir=PATH            install binaries in PATH
1793   --libdir=PATH            install libraries in PATH
1794   --libexecdir=PATH        install helper binaries in PATH
1795   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1796   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1797   --firmwarepath=PATH      search PATH for firmware files
1798   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1799   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1800   --with-pkgversion=VERS   use specified string as sub-version of the package
1801   --enable-debug           enable common debug build options
1802   --enable-sanitizers      enable default sanitizers
1803   --enable-tsan            enable thread sanitizer
1804   --disable-strip          disable stripping binaries
1805   --disable-werror         disable compilation abort on warning
1806   --disable-stack-protector disable compiler-provided stack protection
1807   --audio-drv-list=LIST    set audio drivers list:
1808                            Available drivers: $audio_possible_drivers
1809   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1810   --block-drv-rw-whitelist=L
1811                            set block driver read-write whitelist
1812                            (affects only QEMU, not qemu-img)
1813   --block-drv-ro-whitelist=L
1814                            set block driver read-only whitelist
1815                            (affects only QEMU, not qemu-img)
1816   --enable-trace-backends=B Set trace backend
1817                            Available backends: $trace_backend_list
1818   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1819                            Default:trace-<pid>
1820   --disable-slirp          disable SLIRP userspace network connectivity
1821   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1822   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1823   --oss-lib                path to OSS library
1824   --cpu=CPU                Build for host CPU [$cpu]
1825   --with-coroutine=BACKEND coroutine backend. Supported options:
1826                            ucontext, sigaltstack, windows
1827   --enable-gcov            enable test coverage analysis with gcov
1828   --disable-blobs          disable installing provided firmware blobs
1829   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1830   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1831   --tls-priority           default TLS protocol/cipher priority string
1832   --enable-gprof           QEMU profiling with gprof
1833   --enable-profiler        profiler support
1834   --enable-debug-stack-usage
1835                            track the maximum stack usage of stacks created by qemu_alloc_stack
1836   --enable-plugins
1837                            enable plugins via shared library loading
1838   --disable-containers     don't use containers for cross-building
1839   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1840
1841 Optional features, enabled with --enable-FEATURE and
1842 disabled with --disable-FEATURE, default is enabled if available:
1843
1844   system          all system emulation targets
1845   user            supported user emulation targets
1846   linux-user      all linux usermode emulation targets
1847   bsd-user        all BSD usermode emulation targets
1848   docs            build documentation
1849   guest-agent     build the QEMU Guest Agent
1850   guest-agent-msi build guest agent Windows MSI installation package
1851   pie             Position Independent Executables
1852   modules         modules support (non-Windows)
1853   module-upgrades try to load modules from alternate paths for upgrades
1854   debug-tcg       TCG debugging (default is disabled)
1855   debug-info      debugging information
1856   sparse          sparse checker
1857   safe-stack      SafeStack Stack Smash Protection. Depends on
1858                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1859
1860   gnutls          GNUTLS cryptography support
1861   nettle          nettle cryptography support
1862   gcrypt          libgcrypt cryptography support
1863   auth-pam        PAM access control
1864   sdl             SDL UI
1865   sdl-image       SDL Image support for icons
1866   gtk             gtk UI
1867   vte             vte support for the gtk UI
1868   curses          curses UI
1869   iconv           font glyph conversion support
1870   vnc             VNC UI support
1871   vnc-sasl        SASL encryption for VNC server
1872   vnc-jpeg        JPEG lossy compression for VNC server
1873   vnc-png         PNG compression for VNC server
1874   cocoa           Cocoa UI (Mac OS X only)
1875   virtfs          VirtFS
1876   mpath           Multipath persistent reservation passthrough
1877   xen             xen backend driver support
1878   xen-pci-passthrough    PCI passthrough support for Xen
1879   brlapi          BrlAPI (Braile)
1880   curl            curl connectivity
1881   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1882   fdt             fdt device tree
1883   kvm             KVM acceleration support
1884   hax             HAX acceleration support
1885   hvf             Hypervisor.framework acceleration support
1886   whpx            Windows Hypervisor Platform acceleration support
1887   rdma            Enable RDMA-based migration
1888   pvrdma          Enable PVRDMA support
1889   vde             support for vde network
1890   netmap          support for netmap network
1891   linux-aio       Linux AIO support
1892   linux-io-uring  Linux io_uring support
1893   cap-ng          libcap-ng support
1894   attr            attr and xattr support
1895   vhost-net       vhost-net kernel acceleration support
1896   vhost-vsock     virtio sockets device support
1897   vhost-scsi      vhost-scsi kernel target support
1898   vhost-crypto    vhost-user-crypto backend support
1899   vhost-kernel    vhost kernel backend support
1900   vhost-user      vhost-user backend support
1901   vhost-vdpa      vhost-vdpa kernel backend support
1902   spice           spice
1903   rbd             rados block device (rbd)
1904   libiscsi        iscsi support
1905   libnfs          nfs support
1906   smartcard       smartcard support (libcacard)
1907   u2f             U2F support (u2f-emu)
1908   libusb          libusb (for usb passthrough)
1909   live-block-migration   Block migration in the main migration stream
1910   usb-redir       usb network redirection support
1911   lzo             support of lzo compression library
1912   snappy          support of snappy compression library
1913   bzip2           support of bzip2 compression library
1914                   (for reading bzip2-compressed dmg images)
1915   lzfse           support of lzfse compression library
1916                   (for reading lzfse-compressed dmg images)
1917   zstd            support for zstd compression library
1918                   (for migration compression and qcow2 cluster compression)
1919   seccomp         seccomp support
1920   coroutine-pool  coroutine freelist (better performance)
1921   glusterfs       GlusterFS backend
1922   tpm             TPM support
1923   libssh          ssh block device support
1924   numa            libnuma support
1925   libxml2         for Parallels image format
1926   tcmalloc        tcmalloc support
1927   jemalloc        jemalloc support
1928   avx2            AVX2 optimization support
1929   avx512f         AVX512F optimization support
1930   replication     replication support
1931   opengl          opengl support
1932   virglrenderer   virgl rendering support
1933   xfsctl          xfsctl support
1934   qom-cast-debug  cast debugging support
1935   tools           build qemu-io, qemu-nbd and qemu-img tools
1936   bochs           bochs image format support
1937   cloop           cloop image format support
1938   dmg             dmg image format support
1939   qcow1           qcow v1 image format support
1940   vdi             vdi image format support
1941   vvfat           vvfat image format support
1942   qed             qed image format support
1943   parallels       parallels image format support
1944   sheepdog        sheepdog block driver support
1945   crypto-afalg    Linux AF_ALG crypto backend driver
1946   capstone        capstone disassembler support
1947   debug-mutex     mutex debugging support
1948   libpmem         libpmem support
1949   xkbcommon       xkbcommon support
1950   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1951   libdaxctl       libdaxctl support
1952
1953 NOTE: The object files are built at the place where configure is launched
1954 EOF
1955 exit 0
1956 fi
1957
1958 # Remove old dependency files to make sure that they get properly regenerated
1959 rm -f */config-devices.mak.d
1960
1961 if test -z "$python"
1962 then
1963     error_exit "Python not found. Use --python=/path/to/python"
1964 fi
1965
1966 # Note that if the Python conditional here evaluates True we will exit
1967 # with status 1 which is a shell 'false' value.
1968 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,5))'; then
1969   error_exit "Cannot use '$python', Python >= 3.5 is required." \
1970       "Use --python=/path/to/python to specify a supported Python."
1971 fi
1972
1973 # Preserve python version since some functionality is dependent on it
1974 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)
1975
1976 # Suppress writing compiled files
1977 python="$python -B"
1978
1979 if test -z "$meson"; then
1980     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.1; then
1981         meson=meson
1982     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1983         meson=git
1984     elif test -e "${source_path}/meson/meson.py" ; then
1985         meson=internal
1986     else
1987         if test "$explicit_python" = yes; then
1988             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1989         else
1990             error_exit "Meson not found.  Use --meson=/path/to/meson"
1991         fi
1992     fi
1993 else
1994     # Meson uses its own Python interpreter to invoke other Python scripts,
1995     # but the user wants to use the one they specified with --python.
1996     #
1997     # We do not want to override the distro Python interpreter (and sometimes
1998     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1999     # just require --meson=git|internal together with --python.
2000     if test "$explicit_python" = yes; then
2001         case "$meson" in
2002             git | internal) ;;
2003             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
2004         esac
2005     fi
2006 fi
2007
2008 if test "$meson" = git; then
2009     git_submodules="${git_submodules} meson"
2010 fi
2011
2012 case "$meson" in
2013     git | internal)
2014         if ! $python -c 'import pkg_resources' > /dev/null 2>&1; then
2015             error_exit "Python setuptools not found"
2016         fi
2017         meson="$python ${source_path}/meson/meson.py"
2018         ;;
2019     *) meson=$(command -v meson) ;;
2020 esac
2021
2022 # Probe for ninja (used for compdb)
2023
2024 if test -z "$ninja"; then
2025     for c in ninja ninja-build samu; do
2026         if has $c; then
2027             ninja=$(command -v "$c")
2028             break
2029         fi
2030     done
2031 fi
2032
2033 # Check that the C compiler works. Doing this here before testing
2034 # the host CPU ensures that we had a valid CC to autodetect the
2035 # $cpu var (and we should bail right here if that's not the case).
2036 # It also allows the help message to be printed without a CC.
2037 write_c_skeleton;
2038 if compile_object ; then
2039   : C compiler works ok
2040 else
2041     error_exit "\"$cc\" either does not exist or does not work"
2042 fi
2043 if ! compile_prog ; then
2044     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
2045 fi
2046
2047 # Now we have handled --enable-tcg-interpreter and know we're not just
2048 # printing the help message, bail out if the host CPU isn't supported.
2049 if test "$ARCH" = "unknown"; then
2050     if test "$tcg_interpreter" = "yes" ; then
2051         echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
2052     else
2053         error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
2054     fi
2055 fi
2056
2057 # Consult white-list to determine whether to enable werror
2058 # by default.  Only enable by default for git builds
2059 if test -z "$werror" ; then
2060     if test -e "$source_path/.git" && \
2061         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
2062         werror="yes"
2063     else
2064         werror="no"
2065     fi
2066 fi
2067
2068 if test "$bogus_os" = "yes"; then
2069     # Now that we know that we're not printing the help and that
2070     # the compiler works (so the results of the check_defines we used
2071     # to identify the OS are reliable), if we didn't recognize the
2072     # host OS we should stop now.
2073     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
2074 fi
2075
2076 # Check whether the compiler matches our minimum requirements:
2077 cat > $TMPC << EOF
2078 #if defined(__clang_major__) && defined(__clang_minor__)
2079 # ifdef __apple_build_version__
2080 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
2081 #   error You need at least XCode Clang v5.1 to compile QEMU
2082 #  endif
2083 # else
2084 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
2085 #   error You need at least Clang v3.4 to compile QEMU
2086 #  endif
2087 # endif
2088 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
2089 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
2090 #  error You need at least GCC v4.8 to compile QEMU
2091 # endif
2092 #else
2093 # error You either need GCC or Clang to compiler QEMU
2094 #endif
2095 int main (void) { return 0; }
2096 EOF
2097 if ! compile_prog "" "" ; then
2098     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2099 fi
2100
2101 # Accumulate -Wfoo and -Wno-bar separately.
2102 # We will list all of the enable flags first, and the disable flags second.
2103 # Note that we do not add -Werror, because that would enable it for all
2104 # configure tests. If a configure test failed due to -Werror this would
2105 # just silently disable some features, so it's too error prone.
2106
2107 warn_flags=
2108 add_to warn_flags -Wold-style-declaration
2109 add_to warn_flags -Wold-style-definition
2110 add_to warn_flags -Wtype-limits
2111 add_to warn_flags -Wformat-security
2112 add_to warn_flags -Wformat-y2k
2113 add_to warn_flags -Winit-self
2114 add_to warn_flags -Wignored-qualifiers
2115 add_to warn_flags -Wempty-body
2116 add_to warn_flags -Wnested-externs
2117 add_to warn_flags -Wendif-labels
2118 add_to warn_flags -Wexpansion-to-defined
2119
2120 nowarn_flags=
2121 add_to nowarn_flags -Wno-initializer-overrides
2122 add_to nowarn_flags -Wno-missing-include-dirs
2123 add_to nowarn_flags -Wno-shift-negative-value
2124 add_to nowarn_flags -Wno-string-plus-int
2125 add_to nowarn_flags -Wno-typedef-redefinition
2126 add_to nowarn_flags -Wno-tautological-type-limit-compare
2127 add_to nowarn_flags -Wno-psabi
2128
2129 gcc_flags="$warn_flags $nowarn_flags"
2130
2131 cc_has_warning_flag() {
2132     write_c_skeleton;
2133
2134     # Use the positive sense of the flag when testing for -Wno-wombat
2135     # support (gcc will happily accept the -Wno- form of unknown
2136     # warning options).
2137     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2138     compile_prog "-Werror $optflag" ""
2139 }
2140
2141 for flag in $gcc_flags; do
2142     if cc_has_warning_flag $flag ; then
2143         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2144     fi
2145 done
2146
2147 if test "$stack_protector" != "no"; then
2148   cat > $TMPC << EOF
2149 int main(int argc, char *argv[])
2150 {
2151     char arr[64], *p = arr, *c = argv[0];
2152     while (*c) {
2153         *p++ = *c++;
2154     }
2155     return 0;
2156 }
2157 EOF
2158   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2159   sp_on=0
2160   for flag in $gcc_flags; do
2161     # We need to check both a compile and a link, since some compiler
2162     # setups fail only on a .c->.o compile and some only at link time
2163     if compile_object "-Werror $flag" &&
2164        compile_prog "-Werror $flag" ""; then
2165       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2166       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2167       sp_on=1
2168       break
2169     fi
2170   done
2171   if test "$stack_protector" = yes; then
2172     if test $sp_on = 0; then
2173       error_exit "Stack protector not supported"
2174     fi
2175   fi
2176 fi
2177
2178 # Disable -Wmissing-braces on older compilers that warn even for
2179 # the "universal" C zero initializer {0}.
2180 cat > $TMPC << EOF
2181 struct {
2182   int a[2];
2183 } x = {0};
2184 EOF
2185 if compile_object "-Werror" "" ; then
2186   :
2187 else
2188   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2189 fi
2190
2191 # Our module code doesn't support Windows
2192 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2193   error_exit "Modules are not available for Windows"
2194 fi
2195
2196 # module_upgrades is only reasonable if modules are enabled
2197 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2198   error_exit "Can't enable module-upgrades as Modules are not enabled"
2199 fi
2200
2201 # Static linking is not possible with modules or PIE
2202 if test "$static" = "yes" ; then
2203   if test "$modules" = "yes" ; then
2204     error_exit "static and modules are mutually incompatible"
2205   fi
2206 fi
2207
2208 # Unconditional check for compiler __thread support
2209   cat > $TMPC << EOF
2210 static __thread int tls_var;
2211 int main(void) { return tls_var; }
2212 EOF
2213
2214 if ! compile_prog "-Werror" "" ; then
2215     error_exit "Your compiler does not support the __thread specifier for " \
2216         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2217 fi
2218
2219 cat > $TMPC << EOF
2220
2221 #ifdef __linux__
2222 #  define THREAD __thread
2223 #else
2224 #  define THREAD
2225 #endif
2226 static THREAD int tls_var;
2227 int main(void) { return tls_var; }
2228 EOF
2229
2230 # Check we support --no-pie first; we will need this for building ROMs.
2231 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2232   CFLAGS_NOPIE="-fno-pie"
2233   LDFLAGS_NOPIE="-no-pie"
2234 fi
2235
2236 if test "$static" = "yes"; then
2237   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2238     CFLAGS="-fPIE -DPIE $CFLAGS"
2239     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2240     pie="yes"
2241   elif test "$pie" = "yes"; then
2242     error_exit "-static-pie not available due to missing toolchain support"
2243   else
2244     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2245     pie="no"
2246   fi
2247 elif test "$pie" = "no"; then
2248   CFLAGS="$CFLAGS_NOPIE $CFLAGS"
2249   LDFLAGS="$LDFLAGS_NOPIE $LDFLAGS"
2250 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2251   CFLAGS="-fPIE -DPIE $CFLAGS"
2252   LDFLAGS="-pie $LDFLAGS"
2253   pie="yes"
2254 elif test "$pie" = "yes"; then
2255   error_exit "PIE not available due to missing toolchain support"
2256 else
2257   echo "Disabling PIE due to missing toolchain support"
2258   pie="no"
2259 fi
2260
2261 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2262 # The combination is known as "full relro", because .got.plt is read-only too.
2263 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2264   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2265 fi
2266
2267 ##########################################
2268 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2269 # use i686 as default anyway, but for those that don't, an explicit
2270 # specification is necessary
2271
2272 if test "$cpu" = "i386"; then
2273   cat > $TMPC << EOF
2274 static int sfaa(int *ptr)
2275 {
2276   return __sync_fetch_and_and(ptr, 0);
2277 }
2278
2279 int main(void)
2280 {
2281   int val = 42;
2282   val = __sync_val_compare_and_swap(&val, 0, 1);
2283   sfaa(&val);
2284   return val;
2285 }
2286 EOF
2287   if ! compile_prog "" "" ; then
2288     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2289   fi
2290 fi
2291
2292 #########################################
2293 # Solaris specific configure tool chain decisions
2294
2295 if test "$solaris" = "yes" ; then
2296   if has ar; then
2297     :
2298   else
2299     if test -f /usr/ccs/bin/ar ; then
2300       error_exit "No path includes ar" \
2301           "Add /usr/ccs/bin to your path and rerun configure"
2302     fi
2303     error_exit "No path includes ar"
2304   fi
2305 fi
2306
2307 if test -z "${target_list+xxx}" ; then
2308     for target in $default_target_list; do
2309         supported_target $target 2>/dev/null && \
2310             target_list="$target_list $target"
2311     done
2312     target_list="${target_list# }"
2313 else
2314     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2315     for target in $target_list; do
2316         # Check that we recognised the target name; this allows a more
2317         # friendly error message than if we let it fall through.
2318         case " $default_target_list " in
2319             *" $target "*)
2320                 ;;
2321             *)
2322                 error_exit "Unknown target name '$target'"
2323                 ;;
2324         esac
2325         supported_target $target || exit 1
2326     done
2327 fi
2328
2329 # see if system emulation was really requested
2330 case " $target_list " in
2331   *"-softmmu "*) softmmu=yes
2332   ;;
2333   *) softmmu=no
2334   ;;
2335 esac
2336
2337 for target in $target_list; do
2338   case "$target" in
2339     arm-softmmu | aarch64-softmmu | i386-softmmu | x86_64-softmmu)
2340       edk2_blobs="yes"
2341       ;;
2342   esac
2343 done
2344 # The EDK2 binaries are compressed with bzip2
2345 if test "$edk2_blobs" = "yes" && ! has bzip2; then
2346   error_exit "The bzip2 program is required for building QEMU"
2347 fi
2348
2349 feature_not_found() {
2350   feature=$1
2351   remedy=$2
2352
2353   error_exit "User requested feature $feature" \
2354       "configure was not able to find it." \
2355       "$remedy"
2356 }
2357
2358 # ---
2359 # big/little endian test
2360 cat > $TMPC << EOF
2361 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2362 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2363 extern int foo(short *, short *);
2364 int main(int argc, char *argv[]) {
2365     return foo(big_endian, little_endian);
2366 }
2367 EOF
2368
2369 if compile_object ; then
2370     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2371         bigendian="yes"
2372     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2373         bigendian="no"
2374     else
2375         echo big/little test failed
2376     fi
2377 else
2378     echo big/little test failed
2379 fi
2380
2381 ##########################################
2382 # system tools
2383 if test -z "$want_tools"; then
2384     if test "$softmmu" = "no"; then
2385         want_tools=no
2386     else
2387         want_tools=yes
2388     fi
2389 fi
2390
2391 ##########################################
2392 # cocoa implies not SDL or GTK
2393 # (the cocoa UI code currently assumes it is always the active UI
2394 # and doesn't interact well with other UI frontend code)
2395 if test "$cocoa" = "yes"; then
2396     if test "$sdl" = "yes"; then
2397         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2398     fi
2399     if test "$gtk" = "yes"; then
2400         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2401     fi
2402     gtk=no
2403     sdl=disabled
2404 fi
2405
2406 # Some versions of Mac OS X incorrectly define SIZE_MAX
2407 cat > $TMPC << EOF
2408 #include <stdint.h>
2409 #include <stdio.h>
2410 int main(int argc, char *argv[]) {
2411     return printf("%zu", SIZE_MAX);
2412 }
2413 EOF
2414 have_broken_size_max=no
2415 if ! compile_object -Werror ; then
2416     have_broken_size_max=yes
2417 fi
2418
2419 ##########################################
2420 # L2TPV3 probe
2421
2422 cat > $TMPC <<EOF
2423 #include <sys/socket.h>
2424 #include <linux/ip.h>
2425 int main(void) { return sizeof(struct mmsghdr); }
2426 EOF
2427 if compile_prog "" "" ; then
2428   l2tpv3=yes
2429 else
2430   l2tpv3=no
2431 fi
2432
2433 if check_include "pty.h" ; then
2434   pty_h=yes
2435 else
2436   pty_h=no
2437 fi
2438
2439 cat > $TMPC <<EOF
2440 #include <sys/mman.h>
2441 int main(int argc, char *argv[]) {
2442     return mlockall(MCL_FUTURE);
2443 }
2444 EOF
2445 if compile_prog "" "" ; then
2446   have_mlockall=yes
2447 else
2448   have_mlockall=no
2449 fi
2450
2451 #########################################
2452 # vhost interdependencies and host support
2453
2454 # vhost backends
2455 test "$vhost_user" = "" && vhost_user=yes
2456 if test "$vhost_user" = "yes" && test "$mingw32" = "yes"; then
2457   error_exit "vhost-user isn't available on win32"
2458 fi
2459 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2460 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2461   error_exit "vhost-vdpa is only available on Linux"
2462 fi
2463 test "$vhost_kernel" = "" && vhost_kernel=$linux
2464 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2465   error_exit "vhost-kernel is only available on Linux"
2466 fi
2467
2468 # vhost-kernel devices
2469 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2470 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2471   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2472 fi
2473 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2474 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2475   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2476 fi
2477
2478 # vhost-user backends
2479 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2480 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2481   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2482 fi
2483 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2484 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2485   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2486 fi
2487 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2488 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2489   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2490 fi
2491 #vhost-vdpa backends
2492 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2493 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2494   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2495 fi
2496
2497 # OR the vhost-kernel and vhost-user values for simplicity
2498 if test "$vhost_net" = ""; then
2499   test "$vhost_net_user" = "yes" && vhost_net=yes
2500   test "$vhost_kernel" = "yes" && vhost_net=yes
2501 fi
2502
2503 ##########################################
2504 # MinGW / Mingw-w64 localtime_r/gmtime_r check
2505
2506 if test "$mingw32" = "yes"; then
2507     # Some versions of MinGW / Mingw-w64 lack localtime_r
2508     # and gmtime_r entirely.
2509     #
2510     # Some versions of Mingw-w64 define a macro for
2511     # localtime_r/gmtime_r.
2512     #
2513     # Some versions of Mingw-w64 will define functions
2514     # for localtime_r/gmtime_r, but only if you have
2515     # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun
2516     # though, unistd.h and pthread.h both define
2517     # that for you.
2518     #
2519     # So this #undef localtime_r and #include <unistd.h>
2520     # are not in fact redundant.
2521 cat > $TMPC << EOF
2522 #include <unistd.h>
2523 #include <time.h>
2524 #undef localtime_r
2525 int main(void) { localtime_r(NULL, NULL); return 0; }
2526 EOF
2527     if compile_prog "" "" ; then
2528         localtime_r="yes"
2529     else
2530         localtime_r="no"
2531     fi
2532 fi
2533
2534 ##########################################
2535 # pkg-config probe
2536
2537 if ! has "$pkg_config_exe"; then
2538   error_exit "pkg-config binary '$pkg_config_exe' not found"
2539 fi
2540
2541 ##########################################
2542 # NPTL probe
2543
2544 if test "$linux_user" = "yes"; then
2545   cat > $TMPC <<EOF
2546 #include <sched.h>
2547 #include <linux/futex.h>
2548 int main(void) {
2549 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2550 #error bork
2551 #endif
2552   return 0;
2553 }
2554 EOF
2555   if ! compile_object ; then
2556     feature_not_found "nptl" "Install glibc and linux kernel headers."
2557   fi
2558 fi
2559
2560 ##########################################
2561 # lzo check
2562
2563 if test "$lzo" != "no" ; then
2564     cat > $TMPC << EOF
2565 #include <lzo/lzo1x.h>
2566 int main(void) { lzo_version(); return 0; }
2567 EOF
2568     if compile_prog "" "-llzo2" ; then
2569         lzo_libs="-llzo2"
2570         lzo="yes"
2571     else
2572         if test "$lzo" = "yes"; then
2573             feature_not_found "liblzo2" "Install liblzo2 devel"
2574         fi
2575         lzo="no"
2576     fi
2577 fi
2578
2579 ##########################################
2580 # snappy check
2581
2582 if test "$snappy" != "no" ; then
2583     cat > $TMPC << EOF
2584 #include <snappy-c.h>
2585 int main(void) { snappy_max_compressed_length(4096); return 0; }
2586 EOF
2587     if compile_prog "" "-lsnappy" ; then
2588         snappy_libs='-lsnappy'
2589         snappy="yes"
2590     else
2591         if test "$snappy" = "yes"; then
2592             feature_not_found "libsnappy" "Install libsnappy devel"
2593         fi
2594         snappy="no"
2595     fi
2596 fi
2597
2598 ##########################################
2599 # bzip2 check
2600
2601 if test "$bzip2" != "no" ; then
2602     cat > $TMPC << EOF
2603 #include <bzlib.h>
2604 int main(void) { BZ2_bzlibVersion(); return 0; }
2605 EOF
2606     if compile_prog "" "-lbz2" ; then
2607         bzip2="yes"
2608     else
2609         if test "$bzip2" = "yes"; then
2610             feature_not_found "libbzip2" "Install libbzip2 devel"
2611         fi
2612         bzip2="no"
2613     fi
2614 fi
2615
2616 ##########################################
2617 # lzfse check
2618
2619 if test "$lzfse" != "no" ; then
2620     cat > $TMPC << EOF
2621 #include <lzfse.h>
2622 int main(void) { lzfse_decode_scratch_size(); return 0; }
2623 EOF
2624     if compile_prog "" "-llzfse" ; then
2625         lzfse="yes"
2626     else
2627         if test "$lzfse" = "yes"; then
2628             feature_not_found "lzfse" "Install lzfse devel"
2629         fi
2630         lzfse="no"
2631     fi
2632 fi
2633
2634 ##########################################
2635 # zstd check
2636
2637 if test "$zstd" != "no" ; then
2638     libzstd_minver="1.4.0"
2639     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2640         zstd_cflags="$($pkg_config --cflags libzstd)"
2641         zstd_libs="$($pkg_config --libs libzstd)"
2642         zstd="yes"
2643     else
2644         if test "$zstd" = "yes" ; then
2645             feature_not_found "libzstd" "Install libzstd devel"
2646         fi
2647         zstd="no"
2648     fi
2649 fi
2650
2651 ##########################################
2652 # libseccomp check
2653
2654 if test "$seccomp" != "no" ; then
2655     libseccomp_minver="2.3.0"
2656     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2657         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2658         seccomp_libs="$($pkg_config --libs libseccomp)"
2659         seccomp="yes"
2660     else
2661         if test "$seccomp" = "yes" ; then
2662             feature_not_found "libseccomp" \
2663                  "Install libseccomp devel >= $libseccomp_minver"
2664         fi
2665         seccomp="no"
2666     fi
2667 fi
2668 ##########################################
2669 # xen probe
2670
2671 if test "$xen" != "no" ; then
2672   # Check whether Xen library path is specified via --extra-ldflags to avoid
2673   # overriding this setting with pkg-config output. If not, try pkg-config
2674   # to obtain all needed flags.
2675
2676   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2677      $pkg_config --exists xencontrol ; then
2678     xen_ctrl_version="$(printf '%d%02d%02d' \
2679       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2680     xen=yes
2681     xen_pc="xencontrol xenstore xenguest xenforeignmemory xengnttab"
2682     xen_pc="$xen_pc xenevtchn xendevicemodel"
2683     if $pkg_config --exists xentoolcore; then
2684       xen_pc="$xen_pc xentoolcore"
2685     fi
2686     xen_cflags="$($pkg_config --cflags $xen_pc)"
2687     xen_libs="$($pkg_config --libs $xen_pc)"
2688   else
2689
2690     xen_libs="-lxenstore -lxenctrl -lxenguest"
2691     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2692
2693     # First we test whether Xen headers and libraries are available.
2694     # If no, we are done and there is no Xen support.
2695     # If yes, more tests are run to detect the Xen version.
2696
2697     # Xen (any)
2698     cat > $TMPC <<EOF
2699 #include <xenctrl.h>
2700 int main(void) {
2701   return 0;
2702 }
2703 EOF
2704     if ! compile_prog "" "$xen_libs" ; then
2705       # Xen not found
2706       if test "$xen" = "yes" ; then
2707         feature_not_found "xen" "Install xen devel"
2708       fi
2709       xen=no
2710
2711     # Xen unstable
2712     elif
2713         cat > $TMPC <<EOF &&
2714 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2715 #define __XEN_TOOLS__
2716 #include <xendevicemodel.h>
2717 #include <xenforeignmemory.h>
2718 int main(void) {
2719   xendevicemodel_handle *xd;
2720   xenforeignmemory_handle *xfmem;
2721
2722   xd = xendevicemodel_open(0, 0);
2723   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2724
2725   xfmem = xenforeignmemory_open(0, 0);
2726   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2727
2728   return 0;
2729 }
2730 EOF
2731         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2732       then
2733       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2734       xen_ctrl_version=41100
2735       xen=yes
2736     elif
2737         cat > $TMPC <<EOF &&
2738 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2739 #include <xenforeignmemory.h>
2740 #include <xentoolcore.h>
2741 int main(void) {
2742   xenforeignmemory_handle *xfmem;
2743
2744   xfmem = xenforeignmemory_open(0, 0);
2745   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2746   xentoolcore_restrict_all(0);
2747
2748   return 0;
2749 }
2750 EOF
2751         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2752       then
2753       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2754       xen_ctrl_version=41000
2755       xen=yes
2756     elif
2757         cat > $TMPC <<EOF &&
2758 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2759 #define __XEN_TOOLS__
2760 #include <xendevicemodel.h>
2761 int main(void) {
2762   xendevicemodel_handle *xd;
2763
2764   xd = xendevicemodel_open(0, 0);
2765   xendevicemodel_close(xd);
2766
2767   return 0;
2768 }
2769 EOF
2770         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2771       then
2772       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2773       xen_ctrl_version=40900
2774       xen=yes
2775     elif
2776         cat > $TMPC <<EOF &&
2777 /*
2778  * If we have stable libs the we don't want the libxc compat
2779  * layers, regardless of what CFLAGS we may have been given.
2780  *
2781  * Also, check if xengnttab_grant_copy_segment_t is defined and
2782  * grant copy operation is implemented.
2783  */
2784 #undef XC_WANT_COMPAT_EVTCHN_API
2785 #undef XC_WANT_COMPAT_GNTTAB_API
2786 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2787 #include <xenctrl.h>
2788 #include <xenstore.h>
2789 #include <xenevtchn.h>
2790 #include <xengnttab.h>
2791 #include <xenforeignmemory.h>
2792 #include <stdint.h>
2793 #include <xen/hvm/hvm_info_table.h>
2794 #if !defined(HVM_MAX_VCPUS)
2795 # error HVM_MAX_VCPUS not defined
2796 #endif
2797 int main(void) {
2798   xc_interface *xc = NULL;
2799   xenforeignmemory_handle *xfmem;
2800   xenevtchn_handle *xe;
2801   xengnttab_handle *xg;
2802   xengnttab_grant_copy_segment_t* seg = NULL;
2803
2804   xs_daemon_open();
2805
2806   xc = xc_interface_open(0, 0, 0);
2807   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2808   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2809   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2810   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2811
2812   xfmem = xenforeignmemory_open(0, 0);
2813   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2814
2815   xe = xenevtchn_open(0, 0);
2816   xenevtchn_fd(xe);
2817
2818   xg = xengnttab_open(0, 0);
2819   xengnttab_grant_copy(xg, 0, seg);
2820
2821   return 0;
2822 }
2823 EOF
2824         compile_prog "" "$xen_libs $xen_stable_libs"
2825       then
2826       xen_ctrl_version=40800
2827       xen=yes
2828     elif
2829         cat > $TMPC <<EOF &&
2830 /*
2831  * If we have stable libs the we don't want the libxc compat
2832  * layers, regardless of what CFLAGS we may have been given.
2833  */
2834 #undef XC_WANT_COMPAT_EVTCHN_API
2835 #undef XC_WANT_COMPAT_GNTTAB_API
2836 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2837 #include <xenctrl.h>
2838 #include <xenstore.h>
2839 #include <xenevtchn.h>
2840 #include <xengnttab.h>
2841 #include <xenforeignmemory.h>
2842 #include <stdint.h>
2843 #include <xen/hvm/hvm_info_table.h>
2844 #if !defined(HVM_MAX_VCPUS)
2845 # error HVM_MAX_VCPUS not defined
2846 #endif
2847 int main(void) {
2848   xc_interface *xc = NULL;
2849   xenforeignmemory_handle *xfmem;
2850   xenevtchn_handle *xe;
2851   xengnttab_handle *xg;
2852
2853   xs_daemon_open();
2854
2855   xc = xc_interface_open(0, 0, 0);
2856   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2857   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2858   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2859   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2860
2861   xfmem = xenforeignmemory_open(0, 0);
2862   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2863
2864   xe = xenevtchn_open(0, 0);
2865   xenevtchn_fd(xe);
2866
2867   xg = xengnttab_open(0, 0);
2868   xengnttab_map_grant_ref(xg, 0, 0, 0);
2869
2870   return 0;
2871 }
2872 EOF
2873         compile_prog "" "$xen_libs $xen_stable_libs"
2874       then
2875       xen_ctrl_version=40701
2876       xen=yes
2877
2878     # Xen 4.6
2879     elif
2880         cat > $TMPC <<EOF &&
2881 #include <xenctrl.h>
2882 #include <xenstore.h>
2883 #include <stdint.h>
2884 #include <xen/hvm/hvm_info_table.h>
2885 #if !defined(HVM_MAX_VCPUS)
2886 # error HVM_MAX_VCPUS not defined
2887 #endif
2888 int main(void) {
2889   xc_interface *xc;
2890   xs_daemon_open();
2891   xc = xc_interface_open(0, 0, 0);
2892   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2893   xc_gnttab_open(NULL, 0);
2894   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2895   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2896   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2897   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2898   return 0;
2899 }
2900 EOF
2901         compile_prog "" "$xen_libs"
2902       then
2903       xen_ctrl_version=40600
2904       xen=yes
2905
2906     # Xen 4.5
2907     elif
2908         cat > $TMPC <<EOF &&
2909 #include <xenctrl.h>
2910 #include <xenstore.h>
2911 #include <stdint.h>
2912 #include <xen/hvm/hvm_info_table.h>
2913 #if !defined(HVM_MAX_VCPUS)
2914 # error HVM_MAX_VCPUS not defined
2915 #endif
2916 int main(void) {
2917   xc_interface *xc;
2918   xs_daemon_open();
2919   xc = xc_interface_open(0, 0, 0);
2920   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2921   xc_gnttab_open(NULL, 0);
2922   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2923   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2924   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2925   return 0;
2926 }
2927 EOF
2928         compile_prog "" "$xen_libs"
2929       then
2930       xen_ctrl_version=40500
2931       xen=yes
2932
2933     elif
2934         cat > $TMPC <<EOF &&
2935 #include <xenctrl.h>
2936 #include <xenstore.h>
2937 #include <stdint.h>
2938 #include <xen/hvm/hvm_info_table.h>
2939 #if !defined(HVM_MAX_VCPUS)
2940 # error HVM_MAX_VCPUS not defined
2941 #endif
2942 int main(void) {
2943   xc_interface *xc;
2944   xs_daemon_open();
2945   xc = xc_interface_open(0, 0, 0);
2946   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2947   xc_gnttab_open(NULL, 0);
2948   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2949   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2950   return 0;
2951 }
2952 EOF
2953         compile_prog "" "$xen_libs"
2954       then
2955       xen_ctrl_version=40200
2956       xen=yes
2957
2958     else
2959       if test "$xen" = "yes" ; then
2960         feature_not_found "xen (unsupported version)" \
2961                           "Install a supported xen (xen 4.2 or newer)"
2962       fi
2963       xen=no
2964     fi
2965
2966     if test "$xen" = yes; then
2967       if test $xen_ctrl_version -ge 40701  ; then
2968         xen_libs="$xen_libs $xen_stable_libs "
2969       fi
2970     fi
2971   fi
2972 fi
2973
2974 if test "$xen_pci_passthrough" != "no"; then
2975   if test "$xen" = "yes" && test "$linux" = "yes"; then
2976     xen_pci_passthrough=yes
2977   else
2978     if test "$xen_pci_passthrough" = "yes"; then
2979       error_exit "User requested feature Xen PCI Passthrough" \
2980           " but this feature requires /sys from Linux"
2981     fi
2982     xen_pci_passthrough=no
2983   fi
2984 fi
2985
2986 ##########################################
2987 # Windows Hypervisor Platform accelerator (WHPX) check
2988 if test "$whpx" != "no" ; then
2989     if check_include "WinHvPlatform.h" && check_include "WinHvEmulation.h"; then
2990         whpx="yes"
2991     else
2992         if test "$whpx" = "yes"; then
2993             feature_not_found "WinHvPlatform" "WinHvEmulation is not installed"
2994         fi
2995         whpx="no"
2996     fi
2997 fi
2998
2999 ##########################################
3000 # gettext probe
3001 if test "$gettext" != "false" ; then
3002   if has xgettext; then
3003     gettext=true
3004   else
3005     if test "$gettext" = "true" ; then
3006       feature_not_found "gettext" "Install xgettext binary"
3007     fi
3008     gettext=false
3009   fi
3010 fi
3011
3012 ##########################################
3013 # Sparse probe
3014 if test "$sparse" != "no" ; then
3015   if has sparse; then
3016     sparse=yes
3017   else
3018     if test "$sparse" = "yes" ; then
3019       feature_not_found "sparse" "Install sparse binary"
3020     fi
3021     sparse=no
3022   fi
3023 fi
3024
3025 ##########################################
3026 # X11 probe
3027 if $pkg_config --exists "x11"; then
3028     have_x11=yes
3029     x11_cflags=$($pkg_config --cflags x11)
3030     x11_libs=$($pkg_config --libs x11)
3031 fi
3032
3033 ##########################################
3034 # GTK probe
3035
3036 if test "$gtk" != "no"; then
3037     gtkpackage="gtk+-3.0"
3038     gtkx11package="gtk+-x11-3.0"
3039     gtkversion="3.22.0"
3040     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
3041         gtk_cflags=$($pkg_config --cflags $gtkpackage)
3042         gtk_libs=$($pkg_config --libs $gtkpackage)
3043         gtk_version=$($pkg_config --modversion $gtkpackage)
3044         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
3045             need_x11=yes
3046             gtk_cflags="$gtk_cflags $x11_cflags"
3047             gtk_libs="$gtk_libs $x11_libs"
3048         fi
3049         gtk="yes"
3050     elif test "$gtk" = "yes"; then
3051         feature_not_found "gtk" "Install gtk3-devel"
3052     else
3053         gtk="no"
3054     fi
3055 fi
3056
3057
3058 ##########################################
3059 # GNUTLS probe
3060
3061 if test "$gnutls" != "no"; then
3062     pass="no"
3063     if $pkg_config --exists "gnutls >= 3.1.18"; then
3064         gnutls_cflags=$($pkg_config --cflags gnutls)
3065         gnutls_libs=$($pkg_config --libs gnutls)
3066         # Packaging for the static libraries is not always correct.
3067         # At least ubuntu 18.04 ships only shared libraries.
3068         write_c_skeleton
3069         if compile_prog "" "$gnutls_libs" ; then
3070             pass="yes"
3071         fi
3072     fi
3073     if test "$pass" = "no" && test "$gnutls" = "yes"; then
3074         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
3075     else
3076         gnutls="$pass"
3077     fi
3078 fi
3079
3080
3081 # If user didn't give a --disable/enable-gcrypt flag,
3082 # then mark as disabled if user requested nettle
3083 # explicitly
3084 if test -z "$gcrypt"
3085 then
3086     if test "$nettle" = "yes"
3087     then
3088         gcrypt="no"
3089     fi
3090 fi
3091
3092 # If user didn't give a --disable/enable-nettle flag,
3093 # then mark as disabled if user requested gcrypt
3094 # explicitly
3095 if test -z "$nettle"
3096 then
3097     if test "$gcrypt" = "yes"
3098     then
3099         nettle="no"
3100     fi
3101 fi
3102
3103 has_libgcrypt() {
3104     if ! has "libgcrypt-config"
3105     then
3106         return 1
3107     fi
3108
3109     if test -n "$cross_prefix"
3110     then
3111         host=$(libgcrypt-config --host)
3112         if test "$host-" != $cross_prefix
3113         then
3114             return 1
3115         fi
3116     fi
3117
3118     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
3119     min=`libgcrypt-config --version | awk -F . '{print $2}'`
3120
3121     if test $maj != 1 || test $min -lt 5
3122     then
3123        return 1
3124     fi
3125
3126     return 0
3127 }
3128
3129
3130 if test "$nettle" != "no"; then
3131     pass="no"
3132     if $pkg_config --exists "nettle >= 2.7.1"; then
3133         nettle_cflags=$($pkg_config --cflags nettle)
3134         nettle_libs=$($pkg_config --libs nettle)
3135         nettle_version=$($pkg_config --modversion nettle)
3136         # Link test to make sure the given libraries work (e.g for static).
3137         write_c_skeleton
3138         if compile_prog "" "$nettle_libs" ; then
3139             if test -z "$gcrypt"; then
3140                gcrypt="no"
3141             fi
3142             pass="yes"
3143         fi
3144     fi
3145     if test "$pass" = "yes"
3146     then
3147         cat > $TMPC << EOF
3148 #include <nettle/xts.h>
3149 int main(void) {
3150   return 0;
3151 }
3152 EOF
3153         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
3154             nettle_xts=yes
3155             qemu_private_xts=no
3156         fi
3157     fi
3158     if test "$pass" = "no" && test "$nettle" = "yes"; then
3159         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
3160     else
3161         nettle="$pass"
3162     fi
3163 fi
3164
3165 if test "$gcrypt" != "no"; then
3166     pass="no"
3167     if has_libgcrypt; then
3168         gcrypt_cflags=$(libgcrypt-config --cflags)
3169         gcrypt_libs=$(libgcrypt-config --libs)
3170         # Debian has removed -lgpg-error from libgcrypt-config
3171         # as it "spreads unnecessary dependencies" which in
3172         # turn breaks static builds...
3173         if test "$static" = "yes"
3174         then
3175             gcrypt_libs="$gcrypt_libs -lgpg-error"
3176         fi
3177
3178         # Link test to make sure the given libraries work (e.g for static).
3179         write_c_skeleton
3180         if compile_prog "" "$gcrypt_libs" ; then
3181             pass="yes"
3182         fi
3183     fi
3184     if test "$pass" = "yes"; then
3185         gcrypt="yes"
3186         cat > $TMPC << EOF
3187 #include <gcrypt.h>
3188 int main(void) {
3189   gcry_mac_hd_t handle;
3190   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3191                 GCRY_MAC_FLAG_SECURE, NULL);
3192   return 0;
3193 }
3194 EOF
3195         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3196             gcrypt_hmac=yes
3197         fi
3198         cat > $TMPC << EOF
3199 #include <gcrypt.h>
3200 int main(void) {
3201   gcry_cipher_hd_t handle;
3202   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3203   return 0;
3204 }
3205 EOF
3206         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3207             gcrypt_xts=yes
3208             qemu_private_xts=no
3209         fi
3210     elif test "$gcrypt" = "yes"; then
3211         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3212     else
3213         gcrypt="no"
3214     fi
3215 fi
3216
3217
3218 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3219 then
3220     error_exit "Only one of gcrypt & nettle can be enabled"
3221 fi
3222
3223 ##########################################
3224 # libtasn1 - only for the TLS creds/session test suite
3225
3226 tasn1=yes
3227 tasn1_cflags=""
3228 tasn1_libs=""
3229 if $pkg_config --exists "libtasn1"; then
3230     tasn1_cflags=$($pkg_config --cflags libtasn1)
3231     tasn1_libs=$($pkg_config --libs libtasn1)
3232 else
3233     tasn1=no
3234 fi
3235
3236
3237 ##########################################
3238 # PAM probe
3239
3240 if test "$auth_pam" != "no"; then
3241     cat > $TMPC <<EOF
3242 #include <security/pam_appl.h>
3243 #include <stdio.h>
3244 int main(void) {
3245    const char *service_name = "qemu";
3246    const char *user = "frank";
3247    const struct pam_conv pam_conv = { 0 };
3248    pam_handle_t *pamh = NULL;
3249    pam_start(service_name, user, &pam_conv, &pamh);
3250    return 0;
3251 }
3252 EOF
3253     if compile_prog "" "-lpam" ; then
3254         auth_pam=yes
3255     else
3256         if test "$auth_pam" = "yes"; then
3257             feature_not_found "PAM" "Install PAM development package"
3258         else
3259             auth_pam=no
3260         fi
3261     fi
3262 fi
3263
3264 ##########################################
3265 # getifaddrs (for tests/test-io-channel-socket )
3266
3267 have_ifaddrs_h=yes
3268 if ! check_include "ifaddrs.h" ; then
3269   have_ifaddrs_h=no
3270 fi
3271
3272 #########################################
3273 # libdrm check
3274 have_drm_h=no
3275 if check_include "libdrm/drm.h" ; then
3276     have_drm_h=yes
3277 fi
3278
3279 #########################################
3280 # sys/signal.h check
3281 have_sys_signal_h=no
3282 if check_include "sys/signal.h" ; then
3283   have_sys_signal_h=yes
3284 fi
3285
3286 ##########################################
3287 # VTE probe
3288
3289 if test "$vte" != "no"; then
3290     vteminversion="0.32.0"
3291     if $pkg_config --exists "vte-2.91"; then
3292       vtepackage="vte-2.91"
3293     else
3294       vtepackage="vte-2.90"
3295     fi
3296     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3297         vte_cflags=$($pkg_config --cflags $vtepackage)
3298         vte_libs=$($pkg_config --libs $vtepackage)
3299         vteversion=$($pkg_config --modversion $vtepackage)
3300         vte="yes"
3301     elif test "$vte" = "yes"; then
3302         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3303     else
3304         vte="no"
3305     fi
3306 fi
3307
3308 ##########################################
3309 # RDMA needs OpenFabrics libraries
3310 if test "$rdma" != "no" ; then
3311   cat > $TMPC <<EOF
3312 #include <rdma/rdma_cma.h>
3313 int main(void) { return 0; }
3314 EOF
3315   rdma_libs="-lrdmacm -libverbs -libumad"
3316   if compile_prog "" "$rdma_libs" ; then
3317     rdma="yes"
3318   else
3319     if test "$rdma" = "yes" ; then
3320         error_exit \
3321             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3322             " Your options:" \
3323             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3324             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3325             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3326     fi
3327     rdma="no"
3328   fi
3329 fi
3330
3331 ##########################################
3332 # PVRDMA detection
3333
3334 cat > $TMPC <<EOF &&
3335 #include <sys/mman.h>
3336
3337 int
3338 main(void)
3339 {
3340     char buf = 0;
3341     void *addr = &buf;
3342     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3343
3344     return 0;
3345 }
3346 EOF
3347
3348 if test "$rdma" = "yes" ; then
3349     case "$pvrdma" in
3350     "")
3351         if compile_prog "" ""; then
3352             pvrdma="yes"
3353         else
3354             pvrdma="no"
3355         fi
3356         ;;
3357     "yes")
3358         if ! compile_prog "" ""; then
3359             error_exit "PVRDMA is not supported since mremap is not implemented"
3360         fi
3361         pvrdma="yes"
3362         ;;
3363     "no")
3364         pvrdma="no"
3365         ;;
3366     esac
3367 else
3368     if test "$pvrdma" = "yes" ; then
3369         error_exit "PVRDMA requires rdma suppport"
3370     fi
3371     pvrdma="no"
3372 fi
3373
3374 # Let's see if enhanced reg_mr is supported
3375 if test "$pvrdma" = "yes" ; then
3376
3377 cat > $TMPC <<EOF &&
3378 #include <infiniband/verbs.h>
3379
3380 int
3381 main(void)
3382 {
3383     struct ibv_mr *mr;
3384     struct ibv_pd *pd = NULL;
3385     size_t length = 10;
3386     uint64_t iova = 0;
3387     int access = 0;
3388     void *addr = NULL;
3389
3390     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3391
3392     ibv_dereg_mr(mr);
3393
3394     return 0;
3395 }
3396 EOF
3397     if ! compile_prog "" "-libverbs"; then
3398         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3399     fi
3400 fi
3401
3402 ##########################################
3403 # xfsctl() probe, used for file-posix.c
3404 if test "$xfs" != "no" ; then
3405   cat > $TMPC << EOF
3406 #include <stddef.h>  /* NULL */
3407 #include <xfs/xfs.h>
3408 int main(void)
3409 {
3410     xfsctl(NULL, 0, 0, NULL);
3411     return 0;
3412 }
3413 EOF
3414   if compile_prog "" "" ; then
3415     xfs="yes"
3416   else
3417     if test "$xfs" = "yes" ; then
3418       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3419     fi
3420     xfs=no
3421   fi
3422 fi
3423
3424 ##########################################
3425 # vde libraries probe
3426 if test "$vde" != "no" ; then
3427   vde_libs="-lvdeplug"
3428   cat > $TMPC << EOF
3429 #include <libvdeplug.h>
3430 int main(void)
3431 {
3432     struct vde_open_args a = {0, 0, 0};
3433     char s[] = "";
3434     vde_open(s, s, &a);
3435     return 0;
3436 }
3437 EOF
3438   if compile_prog "" "$vde_libs" ; then
3439     vde=yes
3440   else
3441     if test "$vde" = "yes" ; then
3442       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3443     fi
3444     vde=no
3445   fi
3446 fi
3447
3448 ##########################################
3449 # netmap support probe
3450 # Apart from looking for netmap headers, we make sure that the host API version
3451 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3452 # a minor/major version number. Minor new features will be marked with values up
3453 # to 15, and if something happens that requires a change to the backend we will
3454 # move above 15, submit the backend fixes and modify this two bounds.
3455 if test "$netmap" != "no" ; then
3456   cat > $TMPC << EOF
3457 #include <inttypes.h>
3458 #include <net/if.h>
3459 #include <net/netmap.h>
3460 #include <net/netmap_user.h>
3461 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3462 #error
3463 #endif
3464 int main(void) { return 0; }
3465 EOF
3466   if compile_prog "" "" ; then
3467     netmap=yes
3468   else
3469     if test "$netmap" = "yes" ; then
3470       feature_not_found "netmap"
3471     fi
3472     netmap=no
3473   fi
3474 fi
3475
3476 ##########################################
3477 # libcap-ng library probe
3478 if test "$cap_ng" != "no" ; then
3479   cap_libs="-lcap-ng"
3480   cat > $TMPC << EOF
3481 #include <cap-ng.h>
3482 int main(void)
3483 {
3484     capng_capability_to_name(CAPNG_EFFECTIVE);
3485     return 0;
3486 }
3487 EOF
3488   if compile_prog "" "$cap_libs" ; then
3489     cap_ng=yes
3490   else
3491     if test "$cap_ng" = "yes" ; then
3492       feature_not_found "cap_ng" "Install libcap-ng devel"
3493     fi
3494     cap_ng=no
3495   fi
3496 fi
3497
3498 ##########################################
3499 # Sound support libraries probe
3500
3501 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3502 for drv in $audio_drv_list; do
3503     case $drv in
3504     alsa | try-alsa)
3505     if $pkg_config alsa --exists; then
3506         alsa_libs=$($pkg_config alsa --libs)
3507         alsa_cflags=$($pkg_config alsa --cflags)
3508         alsa=yes
3509         if test "$drv" = "try-alsa"; then
3510             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3511         fi
3512     else
3513         if test "$drv" = "try-alsa"; then
3514             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3515         else
3516             error_exit "$drv check failed" \
3517                 "Make sure to have the $drv libs and headers installed."
3518         fi
3519     fi
3520     ;;
3521
3522     pa | try-pa)
3523     if $pkg_config libpulse --exists; then
3524         libpulse=yes
3525         pulse_libs=$($pkg_config libpulse --libs)
3526         pulse_cflags=$($pkg_config libpulse --cflags)
3527         if test "$drv" = "try-pa"; then
3528             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3529         fi
3530     else
3531         if test "$drv" = "try-pa"; then
3532             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3533         else
3534             error_exit "$drv check failed" \
3535                 "Make sure to have the $drv libs and headers installed."
3536         fi
3537     fi
3538     ;;
3539
3540     sdl)
3541     if test "$sdl" = "no"; then
3542         error_exit "sdl not found or disabled, can not use sdl audio driver"
3543     fi
3544     ;;
3545
3546     try-sdl)
3547     if test "$sdl" = "no"; then
3548         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3549     else
3550         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3551     fi
3552     ;;
3553
3554     coreaudio)
3555       coreaudio_libs="-framework CoreAudio"
3556     ;;
3557
3558     dsound)
3559       dsound_libs="-lole32 -ldxguid"
3560       audio_win_int="yes"
3561     ;;
3562
3563     oss)
3564       oss_libs="$oss_lib"
3565     ;;
3566
3567     jack | try-jack)
3568     if $pkg_config jack --exists; then
3569         libjack=yes
3570         jack_libs=$($pkg_config jack --libs)
3571         if test "$drv" = "try-jack"; then
3572             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3573         fi
3574     else
3575         if test "$drv" = "try-jack"; then
3576             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3577         else
3578             error_exit "$drv check failed" \
3579                 "Make sure to have the $drv libs and headers installed."
3580         fi
3581     fi
3582     ;;
3583
3584     *)
3585     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3586         error_exit "Unknown driver '$drv' selected" \
3587             "Possible drivers are: $audio_possible_drivers"
3588     }
3589     ;;
3590     esac
3591 done
3592
3593 ##########################################
3594 # BrlAPI probe
3595
3596 if test "$brlapi" != "no" ; then
3597   brlapi_libs="-lbrlapi"
3598   cat > $TMPC << EOF
3599 #include <brlapi.h>
3600 #include <stddef.h>
3601 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3602 EOF
3603   if compile_prog "" "$brlapi_libs" ; then
3604     brlapi=yes
3605   else
3606     if test "$brlapi" = "yes" ; then
3607       feature_not_found "brlapi" "Install brlapi devel"
3608     fi
3609     brlapi=no
3610   fi
3611 fi
3612
3613 ##########################################
3614 # iconv probe
3615 if test "$iconv" != "no" ; then
3616   cat > $TMPC << EOF
3617 #include <iconv.h>
3618 int main(void) {
3619   iconv_t conv = iconv_open("WCHAR_T", "UCS-2");
3620   return conv != (iconv_t) -1;
3621 }
3622 EOF
3623   iconv_prefix_list="/usr/local:/usr"
3624   iconv_lib_list=":-liconv"
3625   IFS=:
3626   for iconv_prefix in $iconv_prefix_list; do
3627     IFS=:
3628     iconv_cflags="-I$iconv_prefix/include"
3629     iconv_ldflags="-L$iconv_prefix/lib"
3630     for iconv_link in $iconv_lib_list; do
3631       unset IFS
3632       iconv_lib="$iconv_ldflags $iconv_link"
3633       echo "looking at iconv in '$iconv_cflags' '$iconv_lib'" >> config.log
3634       if compile_prog "$iconv_cflags" "$iconv_lib" ; then
3635         iconv_found=yes
3636         break
3637       fi
3638     done
3639     if test "$iconv_found" = yes ; then
3640       break
3641     fi
3642   done
3643   if test "$iconv_found" = "yes" ; then
3644     iconv=yes
3645   else
3646     if test "$iconv" = "yes" ; then
3647       feature_not_found "iconv" "Install iconv devel"
3648     fi
3649     iconv=no
3650   fi
3651 fi
3652
3653 ##########################################
3654 # curses probe
3655 if test "$iconv" = "no" ; then
3656   # curses will need iconv
3657   curses=no
3658 fi
3659 if test "$curses" != "no" ; then
3660   if test "$mingw32" = "yes" ; then
3661     curses_inc_list="$($pkg_config --cflags ncurses 2>/dev/null):"
3662     curses_lib_list="$($pkg_config --libs ncurses 2>/dev/null):-lpdcurses"
3663   else
3664     curses_inc_list="$($pkg_config --cflags ncursesw 2>/dev/null):-I/usr/include/ncursesw:"
3665     curses_lib_list="$($pkg_config --libs ncursesw 2>/dev/null):-lncursesw:-lcursesw"
3666   fi
3667   curses_found=no
3668   cat > $TMPC << EOF
3669 #include <locale.h>
3670 #include <curses.h>
3671 #include <wchar.h>
3672 #include <langinfo.h>
3673 int main(void) {
3674   const char *codeset;
3675   wchar_t wch = L'w';
3676   setlocale(LC_ALL, "");
3677   resize_term(0, 0);
3678   addwstr(L"wide chars\n");
3679   addnwstr(&wch, 1);
3680   add_wch(WACS_DEGREE);
3681   codeset = nl_langinfo(CODESET);
3682   return codeset != 0;
3683 }
3684 EOF
3685   IFS=:
3686   for curses_inc in $curses_inc_list; do
3687     # Make sure we get the wide character prototypes
3688     curses_inc="-DNCURSES_WIDECHAR $curses_inc"
3689     IFS=:
3690     for curses_lib in $curses_lib_list; do
3691       unset IFS
3692       if compile_prog "$curses_inc" "$curses_lib" ; then
3693         curses_found=yes
3694         break
3695       fi
3696     done
3697     if test "$curses_found" = yes ; then
3698       break
3699     fi
3700   done
3701   unset IFS
3702   if test "$curses_found" = "yes" ; then
3703     curses=yes
3704   else
3705     if test "$curses" = "yes" ; then
3706       feature_not_found "curses" "Install ncurses devel"
3707     fi
3708     curses=no
3709   fi
3710 fi
3711
3712 ##########################################
3713 # curl probe
3714 if test "$curl" != "no" ; then
3715   if $pkg_config libcurl --exists; then
3716     curlconfig="$pkg_config libcurl"
3717   else
3718     curlconfig=curl-config
3719   fi
3720   cat > $TMPC << EOF
3721 #include <curl/curl.h>
3722 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3723 EOF
3724   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3725   curl_libs=$($curlconfig --libs 2>/dev/null)
3726   if compile_prog "$curl_cflags" "$curl_libs" ; then
3727     curl=yes
3728   else
3729     if test "$curl" = "yes" ; then
3730       feature_not_found "curl" "Install libcurl devel"
3731     fi
3732     curl=no
3733   fi
3734 fi # test "$curl"
3735
3736 ##########################################
3737 # glib support probe
3738
3739 glib_req_ver=2.48
3740 glib_modules=gthread-2.0
3741 if test "$modules" = yes; then
3742     glib_modules="$glib_modules gmodule-export-2.0"
3743 fi
3744 if test "$plugins" = yes; then
3745     glib_modules="$glib_modules gmodule-2.0"
3746 fi
3747
3748 for i in $glib_modules; do
3749     if $pkg_config --atleast-version=$glib_req_ver $i; then
3750         glib_cflags=$($pkg_config --cflags $i)
3751         glib_libs=$($pkg_config --libs $i)
3752     else
3753         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3754     fi
3755 done
3756
3757 # This workaround is required due to a bug in pkg-config file for glib as it
3758 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3759
3760 if test "$static" = yes && test "$mingw32" = yes; then
3761     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3762 fi
3763
3764 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3765     gio=yes
3766     gio_cflags=$($pkg_config --cflags gio-2.0)
3767     gio_libs=$($pkg_config --libs gio-2.0)
3768     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3769     if [ ! -x "$gdbus_codegen" ]; then
3770         gdbus_codegen=
3771     fi
3772 else
3773     gio=no
3774 fi
3775
3776 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3777     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3778     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3779 fi
3780
3781 # Sanity check that the current size_t matches the
3782 # size that glib thinks it should be. This catches
3783 # problems on multi-arch where people try to build
3784 # 32-bit QEMU while pointing at 64-bit glib headers
3785 cat > $TMPC <<EOF
3786 #include <glib.h>
3787 #include <unistd.h>
3788
3789 #define QEMU_BUILD_BUG_ON(x) \
3790   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3791
3792 int main(void) {
3793    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3794    return 0;
3795 }
3796 EOF
3797
3798 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3799     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3800                "You probably need to set PKG_CONFIG_LIBDIR"\
3801                "to point to the right pkg-config files for your"\
3802                "build target"
3803 fi
3804
3805 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3806 cat > $TMPC << EOF
3807 #include <glib.h>
3808 int main(void) { return 0; }
3809 EOF
3810 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3811     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3812         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3813         CFLAGS="-Wno-unknown-attributes $CFLAGS"
3814     fi
3815 fi
3816
3817 # Silence clang warnings triggered by glib < 2.57.2
3818 cat > $TMPC << EOF
3819 #include <glib.h>
3820 typedef struct Foo {
3821     int i;
3822 } Foo;
3823 static void foo_free(Foo *f)
3824 {
3825     g_free(f);
3826 }
3827 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3828 int main(void) { return 0; }
3829 EOF
3830 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3831     if cc_has_warning_flag "-Wno-unused-function"; then
3832         glib_cflags="$glib_cflags -Wno-unused-function"
3833         CFLAGS="$CFLAGS -Wno-unused-function"
3834     fi
3835 fi
3836
3837 ##########################################
3838 # SHA command probe for modules
3839 if test "$modules" = yes; then
3840     shacmd_probe="sha1sum sha1 shasum"
3841     for c in $shacmd_probe; do
3842         if has $c; then
3843             shacmd="$c"
3844             break
3845         fi
3846     done
3847     if test "$shacmd" = ""; then
3848         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3849     fi
3850 fi
3851
3852 ##########################################
3853 # libmpathpersist probe
3854
3855 if test "$mpath" != "no" ; then
3856   # probe for the new API
3857   cat > $TMPC <<EOF
3858 #include <libudev.h>
3859 #include <mpath_persist.h>
3860 unsigned mpath_mx_alloc_len = 1024;
3861 int logsink;
3862 static struct config *multipath_conf;
3863 extern struct udev *udev;
3864 extern struct config *get_multipath_config(void);
3865 extern void put_multipath_config(struct config *conf);
3866 struct udev *udev;
3867 struct config *get_multipath_config(void) { return multipath_conf; }
3868 void put_multipath_config(struct config *conf) { }
3869
3870 int main(void) {
3871     udev = udev_new();
3872     multipath_conf = mpath_lib_init();
3873     return 0;
3874 }
3875 EOF
3876   if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3877     mpathpersist=yes
3878     mpathpersist_new_api=yes
3879   else
3880     # probe for the old API
3881     cat > $TMPC <<EOF
3882 #include <libudev.h>
3883 #include <mpath_persist.h>
3884 unsigned mpath_mx_alloc_len = 1024;
3885 int logsink;
3886 int main(void) {
3887     struct udev *udev = udev_new();
3888     mpath_lib_init(udev);
3889     return 0;
3890 }
3891 EOF
3892     if compile_prog "" "-ludev -lmultipath -lmpathpersist" ; then
3893       mpathpersist=yes
3894       mpathpersist_new_api=no
3895     else
3896       mpathpersist=no
3897     fi
3898   fi
3899 else
3900   mpathpersist=no
3901 fi
3902
3903 ##########################################
3904 # pthread probe
3905 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3906
3907 pthread=no
3908 cat > $TMPC << EOF
3909 #include <pthread.h>
3910 static void *f(void *p) { return NULL; }
3911 int main(void) {
3912   pthread_t thread;
3913   pthread_create(&thread, 0, f, 0);
3914   return 0;
3915 }
3916 EOF
3917 if compile_prog "" "" ; then
3918   pthread=yes
3919 else
3920   for pthread_lib in $PTHREADLIBS_LIST; do
3921     if compile_prog "" "$pthread_lib" ; then
3922       pthread=yes
3923       found=no
3924       for lib_entry in $LIBS; do
3925         if test "$lib_entry" = "$pthread_lib"; then
3926           found=yes
3927           break
3928         fi
3929       done
3930       if test "$found" = "no"; then
3931         LIBS="$pthread_lib $LIBS"
3932       fi
3933       PTHREAD_LIB="$pthread_lib"
3934       break
3935     fi
3936   done
3937 fi
3938
3939 if test "$mingw32" != yes && test "$pthread" = no; then
3940   error_exit "pthread check failed" \
3941       "Make sure to have the pthread libs and headers installed."
3942 fi
3943
3944 # check for pthread_setname_np with thread id
3945 pthread_setname_np_w_tid=no
3946 cat > $TMPC << EOF
3947 #include <pthread.h>
3948
3949 static void *f(void *p) { return NULL; }
3950 int main(void)
3951 {
3952     pthread_t thread;
3953     pthread_create(&thread, 0, f, 0);
3954     pthread_setname_np(thread, "QEMU");
3955     return 0;
3956 }
3957 EOF
3958 if compile_prog "" "$pthread_lib" ; then
3959   pthread_setname_np_w_tid=yes
3960 fi
3961
3962 # check for pthread_setname_np without thread id
3963 pthread_setname_np_wo_tid=no
3964 cat > $TMPC << EOF
3965 #include <pthread.h>
3966
3967 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3968 int main(void)
3969 {
3970     pthread_t thread;
3971     pthread_create(&thread, 0, f, 0);
3972     return 0;
3973 }
3974 EOF
3975 if compile_prog "" "$pthread_lib" ; then
3976   pthread_setname_np_wo_tid=yes
3977 fi
3978
3979 ##########################################
3980 # rbd probe
3981 if test "$rbd" != "no" ; then
3982   cat > $TMPC <<EOF
3983 #include <stdio.h>
3984 #include <rbd/librbd.h>
3985 int main(void) {
3986     rados_t cluster;
3987     rados_create(&cluster, NULL);
3988     return 0;
3989 }
3990 EOF
3991   rbd_libs="-lrbd -lrados"
3992   if compile_prog "" "$rbd_libs" ; then
3993     rbd=yes
3994   else
3995     if test "$rbd" = "yes" ; then
3996       feature_not_found "rados block device" "Install librbd/ceph devel"
3997     fi
3998     rbd=no
3999   fi
4000 fi
4001
4002 ##########################################
4003 # libssh probe
4004 if test "$libssh" != "no" ; then
4005   if $pkg_config --exists libssh; then
4006     libssh_cflags=$($pkg_config libssh --cflags)
4007     libssh_libs=$($pkg_config libssh --libs)
4008     libssh=yes
4009   else
4010     if test "$libssh" = "yes" ; then
4011       error_exit "libssh required for --enable-libssh"
4012     fi
4013     libssh=no
4014   fi
4015 fi
4016
4017 ##########################################
4018 # Check for libssh 0.8
4019 # This is done like this instead of using the LIBSSH_VERSION_* and
4020 # SSH_VERSION_* macros because some distributions in the past shipped
4021 # snapshots of the future 0.8 from Git, and those snapshots did not
4022 # have updated version numbers (still referring to 0.7.0).
4023
4024 if test "$libssh" = "yes"; then
4025   cat > $TMPC <<EOF
4026 #include <libssh/libssh.h>
4027 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
4028 EOF
4029   if compile_prog "$libssh_cflags" "$libssh_libs"; then
4030     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
4031   fi
4032 fi
4033
4034 ##########################################
4035 # linux-aio probe
4036
4037 if test "$linux_aio" != "no" ; then
4038   cat > $TMPC <<EOF
4039 #include <libaio.h>
4040 #include <sys/eventfd.h>
4041 #include <stddef.h>
4042 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
4043 EOF
4044   if compile_prog "" "-laio" ; then
4045     linux_aio=yes
4046   else
4047     if test "$linux_aio" = "yes" ; then
4048       feature_not_found "linux AIO" "Install libaio devel"
4049     fi
4050     linux_aio=no
4051   fi
4052 fi
4053 ##########################################
4054 # linux-io-uring probe
4055
4056 if test "$linux_io_uring" != "no" ; then
4057   if $pkg_config liburing; then
4058     linux_io_uring_cflags=$($pkg_config --cflags liburing)
4059     linux_io_uring_libs=$($pkg_config --libs liburing)
4060     linux_io_uring=yes
4061   else
4062     if test "$linux_io_uring" = "yes" ; then
4063       feature_not_found "linux io_uring" "Install liburing devel"
4064     fi
4065     linux_io_uring=no
4066   fi
4067 fi
4068
4069 ##########################################
4070 # TPM emulation is only on POSIX
4071
4072 if test "$tpm" = ""; then
4073   if test "$mingw32" = "yes"; then
4074     tpm=no
4075   else
4076     tpm=yes
4077   fi
4078 elif test "$tpm" = "yes"; then
4079   if test "$mingw32" = "yes" ; then
4080     error_exit "TPM emulation only available on POSIX systems"
4081   fi
4082 fi
4083
4084 ##########################################
4085 # attr probe
4086
4087 libattr_libs=
4088 if test "$attr" != "no" ; then
4089   cat > $TMPC <<EOF
4090 #include <stdio.h>
4091 #include <sys/types.h>
4092 #ifdef CONFIG_LIBATTR
4093 #include <attr/xattr.h>
4094 #else
4095 #include <sys/xattr.h>
4096 #endif
4097 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
4098 EOF
4099   if compile_prog "" "" ; then
4100     attr=yes
4101   # Older distros have <attr/xattr.h>, and need -lattr:
4102   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
4103     attr=yes
4104     libattr_libs="-lattr"
4105     libattr=yes
4106   else
4107     if test "$attr" = "yes" ; then
4108       feature_not_found "ATTR" "Install libc6 or libattr devel"
4109     fi
4110     attr=no
4111   fi
4112 fi
4113
4114 ##########################################
4115 # iovec probe
4116 cat > $TMPC <<EOF
4117 #include <sys/types.h>
4118 #include <sys/uio.h>
4119 #include <unistd.h>
4120 int main(void) { return sizeof(struct iovec); }
4121 EOF
4122 iovec=no
4123 if compile_prog "" "" ; then
4124   iovec=yes
4125 fi
4126
4127 ##########################################
4128 # preadv probe
4129 cat > $TMPC <<EOF
4130 #include <sys/types.h>
4131 #include <sys/uio.h>
4132 #include <unistd.h>
4133 int main(void) { return preadv(0, 0, 0, 0); }
4134 EOF
4135 preadv=no
4136 if compile_prog "" "" ; then
4137   preadv=yes
4138 fi
4139
4140 ##########################################
4141 # fdt probe
4142 # fdt support is mandatory for at least some target architectures,
4143 # so insist on it if we're building those system emulators.
4144 fdt_required=no
4145 for target in $target_list; do
4146   case $target in
4147     aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu|mips64el-softmmu|riscv*-softmmu|rx-softmmu)
4148       fdt_required=yes
4149     ;;
4150   esac
4151 done
4152
4153 if test "$fdt_required" = "yes"; then
4154   if test "$fdt" = "no"; then
4155     error_exit "fdt disabled but some requested targets require it." \
4156       "You can turn off fdt only if you also disable all the system emulation" \
4157       "targets which need it (by specifying a cut down --target-list)."
4158   fi
4159   fdt=yes
4160 elif test "$fdt" != "yes" ; then
4161   fdt=no
4162 fi
4163
4164 # fdt is only required when building softmmu targets
4165 if test -z "$fdt" -a "$softmmu" != "yes" ; then
4166     fdt="no"
4167 fi
4168
4169 if test "$fdt" != "no" ; then
4170   fdt_libs="-lfdt"
4171   # explicitly check for libfdt_env.h as it is missing in some stable installs
4172   # and test for required functions to make sure we are on a version >= 1.4.2
4173   cat > $TMPC << EOF
4174 #include <libfdt.h>
4175 #include <libfdt_env.h>
4176 int main(void) { fdt_check_full(NULL, 0); return 0; }
4177 EOF
4178   if compile_prog "" "$fdt_libs" ; then
4179     # system DTC is good - use it
4180     fdt=system
4181   else
4182       # have GIT checkout, so activate dtc submodule
4183       if test -e "${source_path}/.git" ; then
4184           git_submodules="${git_submodules} dtc"
4185       fi
4186       if test -d "${source_path}/dtc/libfdt" || test -e "${source_path}/.git" ; then
4187           fdt=git
4188           mkdir -p dtc
4189           fdt_cflags="-I${source_path}/dtc/libfdt"
4190           fdt_ldflags="-Ldtc/libfdt"
4191           fdt_libs="$fdt_libs"
4192       elif test "$fdt" = "yes" ; then
4193           # Not a git build & no libfdt found, prompt for system install
4194           error_exit "DTC (libfdt) version >= 1.4.2 not present." \
4195                      "Please install the DTC (libfdt) devel package"
4196       else
4197           # don't have and don't want
4198           fdt_libs=
4199           fdt=no
4200       fi
4201   fi
4202 fi
4203
4204 ##########################################
4205 # opengl probe (for sdl2, gtk, milkymist-tmu2)
4206
4207 gbm="no"
4208 if $pkg_config gbm; then
4209     gbm_cflags="$($pkg_config --cflags gbm)"
4210     gbm_libs="$($pkg_config --libs gbm)"
4211     gbm="yes"
4212 fi
4213
4214 if test "$opengl" != "no" ; then
4215   opengl_pkgs="epoxy gbm"
4216   if $pkg_config $opengl_pkgs; then
4217     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
4218     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
4219     opengl=yes
4220     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
4221         gtk_gl="yes"
4222     fi
4223   else
4224     if test "$opengl" = "yes" ; then
4225       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
4226     fi
4227     opengl_cflags=""
4228     opengl_libs=""
4229     opengl=no
4230   fi
4231 fi
4232
4233 if test "$opengl" = "yes"; then
4234   cat > $TMPC << EOF
4235 #include <epoxy/egl.h>
4236 #ifndef EGL_MESA_image_dma_buf_export
4237 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
4238 #endif
4239 int main(void) { return 0; }
4240 EOF
4241   if compile_prog "" "" ; then
4242     opengl_dmabuf=yes
4243   fi
4244 fi
4245
4246 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
4247   for target in $target_list; do
4248     case $target in
4249       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
4250         need_x11=yes
4251       ;;
4252     esac
4253   done
4254 fi
4255
4256 ##########################################
4257 # libxml2 probe
4258 if test "$libxml2" != "no" ; then
4259     if $pkg_config --exists libxml-2.0; then
4260         libxml2="yes"
4261         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
4262         libxml2_libs=$($pkg_config --libs libxml-2.0)
4263     else
4264         if test "$libxml2" = "yes"; then
4265             feature_not_found "libxml2" "Install libxml2 devel"
4266         fi
4267         libxml2="no"
4268     fi
4269 fi
4270
4271 ##########################################
4272 # glusterfs probe
4273 if test "$glusterfs" != "no" ; then
4274   if $pkg_config --atleast-version=3 glusterfs-api; then
4275     glusterfs="yes"
4276     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
4277     glusterfs_libs=$($pkg_config --libs glusterfs-api)
4278     if $pkg_config --atleast-version=4 glusterfs-api; then
4279       glusterfs_xlator_opt="yes"
4280     fi
4281     if $pkg_config --atleast-version=5 glusterfs-api; then
4282       glusterfs_discard="yes"
4283     fi
4284     if $pkg_config --atleast-version=6 glusterfs-api; then
4285       glusterfs_fallocate="yes"
4286       glusterfs_zerofill="yes"
4287     fi
4288     cat > $TMPC << EOF
4289 #include <glusterfs/api/glfs.h>
4290
4291 int
4292 main(void)
4293 {
4294         /* new glfs_ftruncate() passes two additional args */
4295         return glfs_ftruncate(NULL, 0, NULL, NULL);
4296 }
4297 EOF
4298     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4299       glusterfs_ftruncate_has_stat="yes"
4300     fi
4301     cat > $TMPC << EOF
4302 #include <glusterfs/api/glfs.h>
4303
4304 /* new glfs_io_cbk() passes two additional glfs_stat structs */
4305 static void
4306 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
4307 {}
4308
4309 int
4310 main(void)
4311 {
4312         glfs_io_cbk iocb = &glusterfs_iocb;
4313         iocb(NULL, 0 , NULL, NULL, NULL);
4314         return 0;
4315 }
4316 EOF
4317     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
4318       glusterfs_iocb_has_stat="yes"
4319     fi
4320   else
4321     if test "$glusterfs" = "yes" ; then
4322       feature_not_found "GlusterFS backend support" \
4323           "Install glusterfs-api devel >= 3"
4324     fi
4325     glusterfs="no"
4326   fi
4327 fi
4328
4329 # Check for inotify functions when we are building linux-user
4330 # emulator.  This is done because older glibc versions don't
4331 # have syscall stubs for these implemented.  In that case we
4332 # don't provide them even if kernel supports them.
4333 #
4334 inotify=no
4335 cat > $TMPC << EOF
4336 #include <sys/inotify.h>
4337
4338 int
4339 main(void)
4340 {
4341         /* try to start inotify */
4342         return inotify_init();
4343 }
4344 EOF
4345 if compile_prog "" "" ; then
4346   inotify=yes
4347 fi
4348
4349 inotify1=no
4350 cat > $TMPC << EOF
4351 #include <sys/inotify.h>
4352
4353 int
4354 main(void)
4355 {
4356     /* try to start inotify */
4357     return inotify_init1(0);
4358 }
4359 EOF
4360 if compile_prog "" "" ; then
4361   inotify1=yes
4362 fi
4363
4364 # check if pipe2 is there
4365 pipe2=no
4366 cat > $TMPC << EOF
4367 #include <unistd.h>
4368 #include <fcntl.h>
4369
4370 int main(void)
4371 {
4372     int pipefd[2];
4373     return pipe2(pipefd, O_CLOEXEC);
4374 }
4375 EOF
4376 if compile_prog "" "" ; then
4377   pipe2=yes
4378 fi
4379
4380 # check if accept4 is there
4381 accept4=no
4382 cat > $TMPC << EOF
4383 #include <sys/socket.h>
4384 #include <stddef.h>
4385
4386 int main(void)
4387 {
4388     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4389     return 0;
4390 }
4391 EOF
4392 if compile_prog "" "" ; then
4393   accept4=yes
4394 fi
4395
4396 # check if tee/splice is there. vmsplice was added same time.
4397 splice=no
4398 cat > $TMPC << EOF
4399 #include <unistd.h>
4400 #include <fcntl.h>
4401 #include <limits.h>
4402
4403 int main(void)
4404 {
4405     int len, fd = 0;
4406     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4407     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4408     return 0;
4409 }
4410 EOF
4411 if compile_prog "" "" ; then
4412   splice=yes
4413 fi
4414
4415 ##########################################
4416 # libnuma probe
4417
4418 if test "$numa" != "no" ; then
4419   cat > $TMPC << EOF
4420 #include <numa.h>
4421 int main(void) { return numa_available(); }
4422 EOF
4423
4424   if compile_prog "" "-lnuma" ; then
4425     numa=yes
4426     numa_libs="-lnuma"
4427   else
4428     if test "$numa" = "yes" ; then
4429       feature_not_found "numa" "install numactl devel"
4430     fi
4431     numa=no
4432   fi
4433 fi
4434
4435 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4436     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4437     exit 1
4438 fi
4439
4440 # Even if malloc_trim() is available, these non-libc memory allocators
4441 # do not support it.
4442 if test "$tcmalloc" = "yes" || test "$jemalloc" = "yes" ; then
4443     if test "$malloc_trim" = "yes" ; then
4444         echo "Disabling malloc_trim with non-libc memory allocator"
4445     fi
4446     malloc_trim="no"
4447 fi
4448
4449 #######################################
4450 # malloc_trim
4451
4452 if test "$malloc_trim" != "no" ; then
4453     cat > $TMPC << EOF
4454 #include <malloc.h>
4455 int main(void) { malloc_trim(0); return 0; }
4456 EOF
4457     if compile_prog "" "" ; then
4458         malloc_trim="yes"
4459     else
4460         malloc_trim="no"
4461     fi
4462 fi
4463
4464 ##########################################
4465 # tcmalloc probe
4466
4467 if test "$tcmalloc" = "yes" ; then
4468   cat > $TMPC << EOF
4469 #include <stdlib.h>
4470 int main(void) {
4471     void *tmp = malloc(1);
4472     if (tmp != NULL) {
4473         return 0;
4474     }
4475     return 1;
4476 }
4477 EOF
4478
4479   if compile_prog "" "-ltcmalloc" ; then
4480     LIBS="-ltcmalloc $LIBS"
4481   else
4482     feature_not_found "tcmalloc" "install gperftools devel"
4483   fi
4484 fi
4485
4486 ##########################################
4487 # jemalloc probe
4488
4489 if test "$jemalloc" = "yes" ; then
4490   cat > $TMPC << EOF
4491 #include <stdlib.h>
4492 int main(void) {
4493     void *tmp = malloc(1);
4494     if (tmp != NULL) {
4495         return 0;
4496     }
4497     return 1;
4498 }
4499 EOF
4500
4501   if compile_prog "" "-ljemalloc" ; then
4502     LIBS="-ljemalloc $LIBS"
4503   else
4504     feature_not_found "jemalloc" "install jemalloc devel"
4505   fi
4506 fi
4507
4508 ##########################################
4509 # signalfd probe
4510 signalfd="no"
4511 cat > $TMPC << EOF
4512 #include <unistd.h>
4513 #include <sys/syscall.h>
4514 #include <signal.h>
4515 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4516 EOF
4517
4518 if compile_prog "" "" ; then
4519   signalfd=yes
4520 fi
4521
4522 # check if optreset global is declared by <getopt.h>
4523 optreset="no"
4524 cat > $TMPC << EOF
4525 #include <getopt.h>
4526 int main(void) { return optreset; }
4527 EOF
4528
4529 if compile_prog "" "" ; then
4530   optreset=yes
4531 fi
4532
4533 # check if eventfd is supported
4534 eventfd=no
4535 cat > $TMPC << EOF
4536 #include <sys/eventfd.h>
4537
4538 int main(void)
4539 {
4540     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4541 }
4542 EOF
4543 if compile_prog "" "" ; then
4544   eventfd=yes
4545 fi
4546
4547 # check if memfd is supported
4548 memfd=no
4549 cat > $TMPC << EOF
4550 #include <sys/mman.h>
4551
4552 int main(void)
4553 {
4554     return memfd_create("foo", MFD_ALLOW_SEALING);
4555 }
4556 EOF
4557 if compile_prog "" "" ; then
4558   memfd=yes
4559 fi
4560
4561 # check for usbfs
4562 have_usbfs=no
4563 if test "$linux_user" = "yes"; then
4564   cat > $TMPC << EOF
4565 #include <linux/usbdevice_fs.h>
4566
4567 #ifndef USBDEVFS_GET_CAPABILITIES
4568 #error "USBDEVFS_GET_CAPABILITIES undefined"
4569 #endif
4570
4571 #ifndef USBDEVFS_DISCONNECT_CLAIM
4572 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4573 #endif
4574
4575 int main(void)
4576 {
4577     return 0;
4578 }
4579 EOF
4580   if compile_prog "" ""; then
4581     have_usbfs=yes
4582   fi
4583 fi
4584
4585 # check for fallocate
4586 fallocate=no
4587 cat > $TMPC << EOF
4588 #include <fcntl.h>
4589
4590 int main(void)
4591 {
4592     fallocate(0, 0, 0, 0);
4593     return 0;
4594 }
4595 EOF
4596 if compile_prog "" "" ; then
4597   fallocate=yes
4598 fi
4599
4600 # check for fallocate hole punching
4601 fallocate_punch_hole=no
4602 cat > $TMPC << EOF
4603 #include <fcntl.h>
4604 #include <linux/falloc.h>
4605
4606 int main(void)
4607 {
4608     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4609     return 0;
4610 }
4611 EOF
4612 if compile_prog "" "" ; then
4613   fallocate_punch_hole=yes
4614 fi
4615
4616 # check that fallocate supports range zeroing inside the file
4617 fallocate_zero_range=no
4618 cat > $TMPC << EOF
4619 #include <fcntl.h>
4620 #include <linux/falloc.h>
4621
4622 int main(void)
4623 {
4624     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4625     return 0;
4626 }
4627 EOF
4628 if compile_prog "" "" ; then
4629   fallocate_zero_range=yes
4630 fi
4631
4632 # check for posix_fallocate
4633 posix_fallocate=no
4634 cat > $TMPC << EOF
4635 #include <fcntl.h>
4636
4637 int main(void)
4638 {
4639     posix_fallocate(0, 0, 0);
4640     return 0;
4641 }
4642 EOF
4643 if compile_prog "" "" ; then
4644     posix_fallocate=yes
4645 fi
4646
4647 # check for sync_file_range
4648 sync_file_range=no
4649 cat > $TMPC << EOF
4650 #include <fcntl.h>
4651
4652 int main(void)
4653 {
4654     sync_file_range(0, 0, 0, 0);
4655     return 0;
4656 }
4657 EOF
4658 if compile_prog "" "" ; then
4659   sync_file_range=yes
4660 fi
4661
4662 # check for linux/fiemap.h and FS_IOC_FIEMAP
4663 fiemap=no
4664 cat > $TMPC << EOF
4665 #include <sys/ioctl.h>
4666 #include <linux/fs.h>
4667 #include <linux/fiemap.h>
4668
4669 int main(void)
4670 {
4671     ioctl(0, FS_IOC_FIEMAP, 0);
4672     return 0;
4673 }
4674 EOF
4675 if compile_prog "" "" ; then
4676   fiemap=yes
4677 fi
4678
4679 # check for dup3
4680 dup3=no
4681 cat > $TMPC << EOF
4682 #include <unistd.h>
4683
4684 int main(void)
4685 {
4686     dup3(0, 0, 0);
4687     return 0;
4688 }
4689 EOF
4690 if compile_prog "" "" ; then
4691   dup3=yes
4692 fi
4693
4694 # check for ppoll support
4695 ppoll=no
4696 cat > $TMPC << EOF
4697 #include <poll.h>
4698
4699 int main(void)
4700 {
4701     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4702     ppoll(&pfd, 1, 0, 0);
4703     return 0;
4704 }
4705 EOF
4706 if compile_prog "" "" ; then
4707   ppoll=yes
4708 fi
4709
4710 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4711 prctl_pr_set_timerslack=no
4712 cat > $TMPC << EOF
4713 #include <sys/prctl.h>
4714
4715 int main(void)
4716 {
4717     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4718     return 0;
4719 }
4720 EOF
4721 if compile_prog "" "" ; then
4722   prctl_pr_set_timerslack=yes
4723 fi
4724
4725 # check for epoll support
4726 epoll=no
4727 cat > $TMPC << EOF
4728 #include <sys/epoll.h>
4729
4730 int main(void)
4731 {
4732     epoll_create(0);
4733     return 0;
4734 }
4735 EOF
4736 if compile_prog "" "" ; then
4737   epoll=yes
4738 fi
4739
4740 # epoll_create1 is a later addition
4741 # so we must check separately for its presence
4742 epoll_create1=no
4743 cat > $TMPC << EOF
4744 #include <sys/epoll.h>
4745
4746 int main(void)
4747 {
4748     /* Note that we use epoll_create1 as a value, not as
4749      * a function being called. This is necessary so that on
4750      * old SPARC glibc versions where the function was present in
4751      * the library but not declared in the header file we will
4752      * fail the configure check. (Otherwise we will get a compiler
4753      * warning but not an error, and will proceed to fail the
4754      * qemu compile where we compile with -Werror.)
4755      */
4756     return (int)(uintptr_t)&epoll_create1;
4757 }
4758 EOF
4759 if compile_prog "" "" ; then
4760   epoll_create1=yes
4761 fi
4762
4763 # check for sendfile support
4764 sendfile=no
4765 cat > $TMPC << EOF
4766 #include <sys/sendfile.h>
4767
4768 int main(void)
4769 {
4770     return sendfile(0, 0, 0, 0);
4771 }
4772 EOF
4773 if compile_prog "" "" ; then
4774   sendfile=yes
4775 fi
4776
4777 # check for timerfd support (glibc 2.8 and newer)
4778 timerfd=no
4779 cat > $TMPC << EOF
4780 #include <sys/timerfd.h>
4781
4782 int main(void)
4783 {
4784     return(timerfd_create(CLOCK_REALTIME, 0));
4785 }
4786 EOF
4787 if compile_prog "" "" ; then
4788   timerfd=yes
4789 fi
4790
4791 # check for setns and unshare support
4792 setns=no
4793 cat > $TMPC << EOF
4794 #include <sched.h>
4795
4796 int main(void)
4797 {
4798     int ret;
4799     ret = setns(0, 0);
4800     ret = unshare(0);
4801     return ret;
4802 }
4803 EOF
4804 if compile_prog "" "" ; then
4805   setns=yes
4806 fi
4807
4808 # clock_adjtime probe
4809 clock_adjtime=no
4810 cat > $TMPC <<EOF
4811 #include <time.h>
4812
4813 int main(void)
4814 {
4815     return clock_adjtime(0, 0);
4816 }
4817 EOF
4818 clock_adjtime=no
4819 if compile_prog "" "" ; then
4820   clock_adjtime=yes
4821 fi
4822
4823 # syncfs probe
4824 syncfs=no
4825 cat > $TMPC <<EOF
4826 #include <unistd.h>
4827
4828 int main(void)
4829 {
4830     return syncfs(0);
4831 }
4832 EOF
4833 syncfs=no
4834 if compile_prog "" "" ; then
4835   syncfs=yes
4836 fi
4837
4838 # check for kcov support (kernel must be 4.4+, compiled with certain options)
4839 kcov=no
4840 if check_include sys/kcov.h ; then
4841     kcov=yes
4842 fi
4843
4844 # check for btrfs filesystem support (kernel must be 3.9+)
4845 btrfs=no
4846 if check_include linux/btrfs.h ; then
4847     btrfs=yes
4848 fi
4849
4850 # If we're making warnings fatal, apply this to Sphinx runs as well
4851 sphinx_werror=""
4852 if test "$werror" = "yes"; then
4853     sphinx_werror="-W"
4854 fi
4855
4856 # Check we have a new enough version of sphinx-build
4857 has_sphinx_build() {
4858     # This is a bit awkward but works: create a trivial document and
4859     # try to run it with our configuration file (which enforces a
4860     # version requirement). This will fail if either
4861     # sphinx-build doesn't exist at all or if it is too old.
4862     mkdir -p "$TMPDIR1/sphinx"
4863     touch "$TMPDIR1/sphinx/index.rst"
4864     "$sphinx_build" $sphinx_werror -c "$source_path/docs" \
4865                     -b html "$TMPDIR1/sphinx" \
4866                     "$TMPDIR1/sphinx/out"  >> config.log 2>&1
4867 }
4868
4869 # Check if tools are available to build documentation.
4870 if test "$docs" != "no" ; then
4871   if has_sphinx_build; then
4872     sphinx_ok=yes
4873   else
4874     sphinx_ok=no
4875   fi
4876   if has makeinfo && has pod2man && test "$sphinx_ok" = "yes"; then
4877     docs=yes
4878   else
4879     if test "$docs" = "yes" ; then
4880       if has $sphinx_build && test "$sphinx_ok" != "yes"; then
4881         echo "Warning: $sphinx_build exists but it is either too old or uses too old a Python version" >&2
4882       fi
4883       feature_not_found "docs" "Install texinfo, Perl/perl-podlators and a Python 3 version of python-sphinx"
4884     fi
4885     docs=no
4886   fi
4887 fi
4888
4889 # Search for bswap_32 function
4890 byteswap_h=no
4891 cat > $TMPC << EOF
4892 #include <byteswap.h>
4893 int main(void) { return bswap_32(0); }
4894 EOF
4895 if compile_prog "" "" ; then
4896   byteswap_h=yes
4897 fi
4898
4899 # Search for bswap32 function
4900 bswap_h=no
4901 cat > $TMPC << EOF
4902 #include <sys/endian.h>
4903 #include <sys/types.h>
4904 #include <machine/bswap.h>
4905 int main(void) { return bswap32(0); }
4906 EOF
4907 if compile_prog "" "" ; then
4908   bswap_h=yes
4909 fi
4910
4911 ##########################################
4912 # Do we have libiscsi >= 1.9.0
4913 if test "$libiscsi" != "no" ; then
4914   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4915     libiscsi="yes"
4916     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4917     libiscsi_libs=$($pkg_config --libs libiscsi)
4918   else
4919     if test "$libiscsi" = "yes" ; then
4920       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4921     fi
4922     libiscsi="no"
4923   fi
4924 fi
4925
4926 ##########################################
4927 # Do we need librt
4928 # uClibc provides 2 versions of clock_gettime(), one with realtime
4929 # support and one without. This means that the clock_gettime() don't
4930 # need -lrt. We still need it for timer_create() so we check for this
4931 # function in addition.
4932 cat > $TMPC <<EOF
4933 #include <signal.h>
4934 #include <time.h>
4935 int main(void) {
4936   timer_create(CLOCK_REALTIME, NULL, NULL);
4937   return clock_gettime(CLOCK_REALTIME, NULL);
4938 }
4939 EOF
4940
4941 if compile_prog "" "" ; then
4942   :
4943 # we need pthread for static linking. use previous pthread test result
4944 elif compile_prog "" "$pthread_lib -lrt" ; then
4945   LIBS="$LIBS -lrt"
4946 fi
4947
4948 # Check whether we have openpty() in either libc or libutil
4949 cat > $TMPC << EOF
4950 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4951 int main(void) { return openpty(0, 0, 0, 0, 0); }
4952 EOF
4953
4954 have_openpty="no"
4955 if compile_prog "" "" ; then
4956   have_openpty="yes"
4957 else
4958   if compile_prog "" "-lutil" ; then
4959     have_openpty="yes"
4960   fi
4961 fi
4962
4963 ##########################################
4964 # spice probe
4965 if test "$spice" != "no" ; then
4966   cat > $TMPC << EOF
4967 #include <spice.h>
4968 int main(void) { spice_server_new(); return 0; }
4969 EOF
4970   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4971   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4972   if $pkg_config --atleast-version=0.12.5 spice-server && \
4973      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4974      compile_prog "$spice_cflags" "$spice_libs" ; then
4975     spice="yes"
4976   else
4977     if test "$spice" = "yes" ; then
4978       feature_not_found "spice" \
4979           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4980     fi
4981     spice="no"
4982   fi
4983 fi
4984
4985 # check for smartcard support
4986 if test "$smartcard" != "no"; then
4987     if $pkg_config --atleast-version=2.5.1 libcacard; then
4988         libcacard_cflags=$($pkg_config --cflags libcacard)
4989         libcacard_libs=$($pkg_config --libs libcacard)
4990         smartcard="yes"
4991     else
4992         if test "$smartcard" = "yes"; then
4993             feature_not_found "smartcard" "Install libcacard devel"
4994         fi
4995         smartcard="no"
4996     fi
4997 fi
4998
4999 # check for libusb
5000 if test "$libusb" != "no" ; then
5001     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
5002         libusb="yes"
5003         libusb_cflags=$($pkg_config --cflags libusb-1.0)
5004         libusb_libs=$($pkg_config --libs libusb-1.0)
5005     else
5006         if test "$libusb" = "yes"; then
5007             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
5008         fi
5009         libusb="no"
5010     fi
5011 fi
5012
5013 # check for usbredirparser for usb network redirection support
5014 if test "$usb_redir" != "no" ; then
5015     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
5016         usb_redir="yes"
5017         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
5018         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
5019     else
5020         if test "$usb_redir" = "yes"; then
5021             feature_not_found "usb-redir" "Install usbredir devel"
5022         fi
5023         usb_redir="no"
5024     fi
5025 fi
5026
5027 ##########################################
5028 # check if we have VSS SDK headers for win
5029
5030 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5031         test "$vss_win32_sdk" != "no" ; then
5032   case "$vss_win32_sdk" in
5033     "")   vss_win32_include="-isystem $source_path" ;;
5034     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
5035           # handle path with spaces. So we symlink the headers into ".sdk/vss".
5036           vss_win32_include="-isystem $source_path/.sdk/vss"
5037           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
5038           ;;
5039     *)    vss_win32_include="-isystem $vss_win32_sdk"
5040   esac
5041   cat > $TMPC << EOF
5042 #define __MIDL_user_allocate_free_DEFINED__
5043 #include <inc/win2003/vss.h>
5044 int main(void) { return VSS_CTX_BACKUP; }
5045 EOF
5046   if compile_prog "$vss_win32_include" "" ; then
5047     guest_agent_with_vss="yes"
5048     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
5049     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
5050     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
5051   else
5052     if test "$vss_win32_sdk" != "" ; then
5053       echo "ERROR: Please download and install Microsoft VSS SDK:"
5054       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
5055       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
5056       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
5057       echo "ERROR: The headers are extracted in the directory \`inc'."
5058       feature_not_found "VSS support"
5059     fi
5060     guest_agent_with_vss="no"
5061   fi
5062 fi
5063
5064 ##########################################
5065 # lookup Windows platform SDK (if not specified)
5066 # The SDK is needed only to build .tlb (type library) file of guest agent
5067 # VSS provider from the source. It is usually unnecessary because the
5068 # pre-compiled .tlb file is included.
5069
5070 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
5071         test "$guest_agent_with_vss" = "yes" ; then
5072   if test -z "$win_sdk"; then
5073     programfiles="$PROGRAMFILES"
5074     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
5075     if test -n "$programfiles"; then
5076       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
5077     else
5078       feature_not_found "Windows SDK"
5079     fi
5080   elif test "$win_sdk" = "no"; then
5081     win_sdk=""
5082   fi
5083 fi
5084
5085 ##########################################
5086 # check if mingw environment provides a recent ntddscsi.h
5087 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
5088   cat > $TMPC << EOF
5089 #include <windows.h>
5090 #include <ntddscsi.h>
5091 int main(void) {
5092 #if !defined(IOCTL_SCSI_GET_ADDRESS)
5093 #error Missing required ioctl definitions
5094 #endif
5095   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
5096   return addr.Lun;
5097 }
5098 EOF
5099   if compile_prog "" "" ; then
5100     guest_agent_ntddscsi=yes
5101     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
5102   fi
5103 fi
5104
5105 ##########################################
5106 # virgl renderer probe
5107
5108 if test "$virglrenderer" != "no" ; then
5109   cat > $TMPC << EOF
5110 #include <virglrenderer.h>
5111 int main(void) { virgl_renderer_poll(); return 0; }
5112 EOF
5113   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
5114   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
5115   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
5116   if $pkg_config virglrenderer >/dev/null 2>&1 && \
5117      compile_prog "$virgl_cflags" "$virgl_libs" ; then
5118     virglrenderer="yes"
5119   else
5120     if test "$virglrenderer" = "yes" ; then
5121       feature_not_found "virglrenderer"
5122     fi
5123     virglrenderer="no"
5124   fi
5125 fi
5126
5127 ##########################################
5128 # capstone
5129
5130 case "$capstone" in
5131   "" | yes)
5132     if $pkg_config capstone; then
5133       capstone=system
5134     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5135       capstone=git
5136     elif test -e "${source_path}/capstone/Makefile" ; then
5137       capstone=internal
5138     elif test -z "$capstone" ; then
5139       capstone=no
5140     else
5141       feature_not_found "capstone" "Install capstone devel or git submodule"
5142     fi
5143     ;;
5144
5145   system)
5146     if ! $pkg_config capstone; then
5147       feature_not_found "capstone" "Install capstone devel"
5148     fi
5149     ;;
5150 esac
5151
5152 case "$capstone" in
5153   git | internal)
5154     if test "$capstone" = git; then
5155       git_submodules="${git_submodules} capstone"
5156     fi
5157     mkdir -p capstone
5158     if test "$mingw32" = "yes"; then
5159       LIBCAPSTONE=capstone.lib
5160     else
5161       LIBCAPSTONE=libcapstone.a
5162     fi
5163     capstone_libs="-Lcapstone -lcapstone"
5164     capstone_cflags="-I${source_path}/capstone/include"
5165     ;;
5166
5167   system)
5168     capstone_libs="$($pkg_config --libs capstone)"
5169     capstone_cflags="$($pkg_config --cflags capstone)"
5170     ;;
5171
5172   no)
5173     ;;
5174   *)
5175     error_exit "Unknown state for capstone: $capstone"
5176     ;;
5177 esac
5178
5179 ##########################################
5180 # check if we have fdatasync
5181
5182 fdatasync=no
5183 cat > $TMPC << EOF
5184 #include <unistd.h>
5185 int main(void) {
5186 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
5187 return fdatasync(0);
5188 #else
5189 #error Not supported
5190 #endif
5191 }
5192 EOF
5193 if compile_prog "" "" ; then
5194     fdatasync=yes
5195 fi
5196
5197 ##########################################
5198 # check if we have madvise
5199
5200 madvise=no
5201 cat > $TMPC << EOF
5202 #include <sys/types.h>
5203 #include <sys/mman.h>
5204 #include <stddef.h>
5205 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
5206 EOF
5207 if compile_prog "" "" ; then
5208     madvise=yes
5209 fi
5210
5211 ##########################################
5212 # check if we have posix_madvise
5213
5214 posix_madvise=no
5215 cat > $TMPC << EOF
5216 #include <sys/mman.h>
5217 #include <stddef.h>
5218 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
5219 EOF
5220 if compile_prog "" "" ; then
5221     posix_madvise=yes
5222 fi
5223
5224 ##########################################
5225 # check if we have posix_memalign()
5226
5227 posix_memalign=no
5228 cat > $TMPC << EOF
5229 #include <stdlib.h>
5230 int main(void) {
5231     void *p;
5232     return posix_memalign(&p, 8, 8);
5233 }
5234 EOF
5235 if compile_prog "" "" ; then
5236     posix_memalign=yes
5237 fi
5238
5239 ##########################################
5240 # check if we have posix_syslog
5241
5242 posix_syslog=no
5243 cat > $TMPC << EOF
5244 #include <syslog.h>
5245 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
5246 EOF
5247 if compile_prog "" "" ; then
5248     posix_syslog=yes
5249 fi
5250
5251 ##########################################
5252 # check if we have sem_timedwait
5253
5254 sem_timedwait=no
5255 cat > $TMPC << EOF
5256 #include <semaphore.h>
5257 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
5258 EOF
5259 if compile_prog "" "" ; then
5260     sem_timedwait=yes
5261 fi
5262
5263 ##########################################
5264 # check if we have strchrnul
5265
5266 strchrnul=no
5267 cat > $TMPC << EOF
5268 #include <string.h>
5269 int main(void);
5270 // Use a haystack that the compiler shouldn't be able to constant fold
5271 char *haystack = (char*)&main;
5272 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
5273 EOF
5274 if compile_prog "" "" ; then
5275     strchrnul=yes
5276 fi
5277
5278 #########################################
5279 # check if we have st_atim
5280
5281 st_atim=no
5282 cat > $TMPC << EOF
5283 #include <sys/stat.h>
5284 #include <stddef.h>
5285 int main(void) { return offsetof(struct stat, st_atim); }
5286 EOF
5287 if compile_prog "" "" ; then
5288     st_atim=yes
5289 fi
5290
5291 ##########################################
5292 # check if trace backend exists
5293
5294 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
5295 if test "$?" -ne 0 ; then
5296   error_exit "invalid trace backends" \
5297       "Please choose supported trace backends."
5298 fi
5299
5300 ##########################################
5301 # For 'ust' backend, test if ust headers are present
5302 if have_backend "ust"; then
5303   cat > $TMPC << EOF
5304 #include <lttng/tracepoint.h>
5305 int main(void) { return 0; }
5306 EOF
5307   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
5308     if $pkg_config lttng-ust --exists; then
5309       lttng_ust_libs=$($pkg_config --libs lttng-ust)
5310     else
5311       lttng_ust_libs="-llttng-ust -ldl"
5312     fi
5313     if $pkg_config liburcu-bp --exists; then
5314       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
5315     else
5316       urcu_bp_libs="-lurcu-bp"
5317     fi
5318   else
5319     error_exit "Trace backend 'ust' missing lttng-ust header files"
5320   fi
5321 fi
5322
5323 ##########################################
5324 # For 'dtrace' backend, test if 'dtrace' command is present
5325 if have_backend "dtrace"; then
5326   if ! has 'dtrace' ; then
5327     error_exit "dtrace command is not found in PATH $PATH"
5328   fi
5329   trace_backend_stap="no"
5330   if has 'stap' ; then
5331     trace_backend_stap="yes"
5332   fi
5333 fi
5334
5335 ##########################################
5336 # check and set a backend for coroutine
5337
5338 # We prefer ucontext, but it's not always possible. The fallback
5339 # is sigcontext. On Windows the only valid backend is the Windows
5340 # specific one.
5341
5342 ucontext_works=no
5343 if test "$darwin" != "yes"; then
5344   cat > $TMPC << EOF
5345 #include <ucontext.h>
5346 #ifdef __stub_makecontext
5347 #error Ignoring glibc stub makecontext which will always fail
5348 #endif
5349 int main(void) { makecontext(0, 0, 0); return 0; }
5350 EOF
5351   if compile_prog "" "" ; then
5352     ucontext_works=yes
5353   fi
5354 fi
5355
5356 if test "$coroutine" = ""; then
5357   if test "$mingw32" = "yes"; then
5358     coroutine=win32
5359   elif test "$ucontext_works" = "yes"; then
5360     coroutine=ucontext
5361   else
5362     coroutine=sigaltstack
5363   fi
5364 else
5365   case $coroutine in
5366   windows)
5367     if test "$mingw32" != "yes"; then
5368       error_exit "'windows' coroutine backend only valid for Windows"
5369     fi
5370     # Unfortunately the user visible backend name doesn't match the
5371     # coroutine-*.c filename for this case, so we have to adjust it here.
5372     coroutine=win32
5373     ;;
5374   ucontext)
5375     if test "$ucontext_works" != "yes"; then
5376       feature_not_found "ucontext"
5377     fi
5378     ;;
5379   sigaltstack)
5380     if test "$mingw32" = "yes"; then
5381       error_exit "only the 'windows' coroutine backend is valid for Windows"
5382     fi
5383     ;;
5384   *)
5385     error_exit "unknown coroutine backend $coroutine"
5386     ;;
5387   esac
5388 fi
5389
5390 if test "$coroutine_pool" = ""; then
5391   coroutine_pool=yes
5392 fi
5393
5394 if test "$debug_stack_usage" = "yes"; then
5395   if test "$coroutine_pool" = "yes"; then
5396     echo "WARN: disabling coroutine pool for stack usage debugging"
5397     coroutine_pool=no
5398   fi
5399 fi
5400
5401 ##################################################
5402 # SafeStack
5403
5404
5405 if test "$safe_stack" = "yes"; then
5406 cat > $TMPC << EOF
5407 int main(int argc, char *argv[])
5408 {
5409 #if ! __has_feature(safe_stack)
5410 #error SafeStack Disabled
5411 #endif
5412     return 0;
5413 }
5414 EOF
5415   flag="-fsanitize=safe-stack"
5416   # Check that safe-stack is supported and enabled.
5417   if compile_prog "-Werror $flag" "$flag"; then
5418     # Flag needed both at compilation and at linking
5419     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5420     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5421   else
5422     error_exit "SafeStack not supported by your compiler"
5423   fi
5424   if test "$coroutine" != "ucontext"; then
5425     error_exit "SafeStack is only supported by the coroutine backend ucontext"
5426   fi
5427 else
5428 cat > $TMPC << EOF
5429 int main(int argc, char *argv[])
5430 {
5431 #if defined(__has_feature)
5432 #if __has_feature(safe_stack)
5433 #error SafeStack Enabled
5434 #endif
5435 #endif
5436     return 0;
5437 }
5438 EOF
5439 if test "$safe_stack" = "no"; then
5440   # Make sure that safe-stack is disabled
5441   if ! compile_prog "-Werror" ""; then
5442     # SafeStack was already enabled, try to explicitly remove the feature
5443     flag="-fno-sanitize=safe-stack"
5444     if ! compile_prog "-Werror $flag" "$flag"; then
5445       error_exit "Configure cannot disable SafeStack"
5446     fi
5447     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
5448     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
5449   fi
5450 else # "$safe_stack" = ""
5451   # Set safe_stack to yes or no based on pre-existing flags
5452   if compile_prog "-Werror" ""; then
5453     safe_stack="no"
5454   else
5455     safe_stack="yes"
5456     if test "$coroutine" != "ucontext"; then
5457       error_exit "SafeStack is only supported by the coroutine backend ucontext"
5458     fi
5459   fi
5460 fi
5461 fi
5462
5463 ##########################################
5464 # check if we have open_by_handle_at
5465
5466 open_by_handle_at=no
5467 cat > $TMPC << EOF
5468 #include <fcntl.h>
5469 #if !defined(AT_EMPTY_PATH)
5470 # error missing definition
5471 #else
5472 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
5473 #endif
5474 EOF
5475 if compile_prog "" "" ; then
5476     open_by_handle_at=yes
5477 fi
5478
5479 ########################################
5480 # check if we have linux/magic.h
5481
5482 linux_magic_h=no
5483 cat > $TMPC << EOF
5484 #include <linux/magic.h>
5485 int main(void) {
5486   return 0;
5487 }
5488 EOF
5489 if compile_prog "" "" ; then
5490     linux_magic_h=yes
5491 fi
5492
5493 ########################################
5494 # check if we have valgrind/valgrind.h
5495
5496 valgrind_h=no
5497 cat > $TMPC << EOF
5498 #include <valgrind/valgrind.h>
5499 int main(void) {
5500   return 0;
5501 }
5502 EOF
5503 if compile_prog "" "" ; then
5504     valgrind_h=yes
5505 fi
5506
5507 ########################################
5508 # check if environ is declared
5509
5510 has_environ=no
5511 cat > $TMPC << EOF
5512 #include <unistd.h>
5513 int main(void) {
5514     environ = 0;
5515     return 0;
5516 }
5517 EOF
5518 if compile_prog "" "" ; then
5519     has_environ=yes
5520 fi
5521
5522 ########################################
5523 # check if cpuid.h is usable.
5524
5525 cat > $TMPC << EOF
5526 #include <cpuid.h>
5527 int main(void) {
5528     unsigned a, b, c, d;
5529     int max = __get_cpuid_max(0, 0);
5530
5531     if (max >= 1) {
5532         __cpuid(1, a, b, c, d);
5533     }
5534
5535     if (max >= 7) {
5536         __cpuid_count(7, 0, a, b, c, d);
5537     }
5538
5539     return 0;
5540 }
5541 EOF
5542 if compile_prog "" "" ; then
5543     cpuid_h=yes
5544 fi
5545
5546 ##########################################
5547 # avx2 optimization requirement check
5548 #
5549 # There is no point enabling this if cpuid.h is not usable,
5550 # since we won't be able to select the new routines.
5551
5552 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5553   cat > $TMPC << EOF
5554 #pragma GCC push_options
5555 #pragma GCC target("avx2")
5556 #include <cpuid.h>
5557 #include <immintrin.h>
5558 static int bar(void *a) {
5559     __m256i x = *(__m256i *)a;
5560     return _mm256_testz_si256(x, x);
5561 }
5562 int main(int argc, char *argv[]) { return bar(argv[0]); }
5563 EOF
5564   if compile_object "" ; then
5565     avx2_opt="yes"
5566   else
5567     avx2_opt="no"
5568   fi
5569 fi
5570
5571 ##########################################
5572 # avx512f optimization requirement check
5573 #
5574 # There is no point enabling this if cpuid.h is not usable,
5575 # since we won't be able to select the new routines.
5576 # by default, it is turned off.
5577 # if user explicitly want to enable it, check environment
5578
5579 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5580   cat > $TMPC << EOF
5581 #pragma GCC push_options
5582 #pragma GCC target("avx512f")
5583 #include <cpuid.h>
5584 #include <immintrin.h>
5585 static int bar(void *a) {
5586     __m512i x = *(__m512i *)a;
5587     return _mm512_test_epi64_mask(x, x);
5588 }
5589 int main(int argc, char *argv[])
5590 {
5591         return bar(argv[0]);
5592 }
5593 EOF
5594   if ! compile_object "" ; then
5595     avx512f_opt="no"
5596   fi
5597 else
5598   avx512f_opt="no"
5599 fi
5600
5601 ########################################
5602 # check if __[u]int128_t is usable.
5603
5604 int128=no
5605 cat > $TMPC << EOF
5606 __int128_t a;
5607 __uint128_t b;
5608 int main (void) {
5609   a = a + b;
5610   b = a * b;
5611   a = a * a;
5612   return 0;
5613 }
5614 EOF
5615 if compile_prog "" "" ; then
5616     int128=yes
5617 fi
5618
5619 #########################################
5620 # See if 128-bit atomic operations are supported.
5621
5622 atomic128=no
5623 if test "$int128" = "yes"; then
5624   cat > $TMPC << EOF
5625 int main(void)
5626 {
5627   unsigned __int128 x = 0, y = 0;
5628   y = __atomic_load_16(&x, 0);
5629   __atomic_store_16(&x, y, 0);
5630   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5631   return 0;
5632 }
5633 EOF
5634   if compile_prog "" "" ; then
5635     atomic128=yes
5636   fi
5637 fi
5638
5639 cmpxchg128=no
5640 if test "$int128" = yes && test "$atomic128" = no; then
5641   cat > $TMPC << EOF
5642 int main(void)
5643 {
5644   unsigned __int128 x = 0, y = 0;
5645   __sync_val_compare_and_swap_16(&x, y, x);
5646   return 0;
5647 }
5648 EOF
5649   if compile_prog "" "" ; then
5650     cmpxchg128=yes
5651   fi
5652 fi
5653
5654 #########################################
5655 # See if 64-bit atomic operations are supported.
5656 # Note that without __atomic builtins, we can only
5657 # assume atomic loads/stores max at pointer size.
5658
5659 cat > $TMPC << EOF
5660 #include <stdint.h>
5661 int main(void)
5662 {
5663   uint64_t x = 0, y = 0;
5664 #ifdef __ATOMIC_RELAXED
5665   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5666   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5667   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5668   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5669   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5670 #else
5671   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5672   __sync_lock_test_and_set(&x, y);
5673   __sync_val_compare_and_swap(&x, y, 0);
5674   __sync_fetch_and_add(&x, y);
5675 #endif
5676   return 0;
5677 }
5678 EOF
5679 if compile_prog "" "" ; then
5680   atomic64=yes
5681 fi
5682
5683 #########################################
5684 # See if --dynamic-list is supported by the linker
5685 ld_dynamic_list="no"
5686 if test "$static" = "no" ; then
5687     cat > $TMPTXT <<EOF
5688 {
5689   foo;
5690 };
5691 EOF
5692
5693     cat > $TMPC <<EOF
5694 #include <stdio.h>
5695 void foo(void);
5696
5697 void foo(void)
5698 {
5699   printf("foo\n");
5700 }
5701
5702 int main(void)
5703 {
5704   foo();
5705   return 0;
5706 }
5707 EOF
5708
5709     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5710         ld_dynamic_list="yes"
5711     fi
5712 fi
5713
5714 #########################################
5715 # See if -exported_symbols_list is supported by the linker
5716
5717 ld_exported_symbols_list="no"
5718 if test "$static" = "no" ; then
5719     cat > $TMPTXT <<EOF
5720   _foo
5721 EOF
5722
5723     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5724         ld_exported_symbols_list="yes"
5725     fi
5726 fi
5727
5728 if  test "$plugins" = "yes" &&
5729     test "$ld_dynamic_list" = "no" &&
5730     test "$ld_exported_symbols_list" = "no" ; then
5731   error_exit \
5732       "Plugin support requires dynamic linking and specifying a set of symbols " \
5733       "that are exported to plugins. Unfortunately your linker doesn't " \
5734       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5735       "for this purpose. You can't build with --static."
5736 fi
5737
5738 ########################################
5739 # See if __attribute__((alias)) is supported.
5740 # This false for Xcode 9, but has been remedied for Xcode 10.
5741 # Unfortunately, travis uses Xcode 9 by default.
5742
5743 attralias=no
5744 cat > $TMPC << EOF
5745 int x = 1;
5746 extern const int y __attribute__((alias("x")));
5747 int main(void) { return 0; }
5748 EOF
5749 if compile_prog "" "" ; then
5750     attralias=yes
5751 fi
5752
5753 ########################################
5754 # check if getauxval is available.
5755
5756 getauxval=no
5757 cat > $TMPC << EOF
5758 #include <sys/auxv.h>
5759 int main(void) {
5760   return getauxval(AT_HWCAP) == 0;
5761 }
5762 EOF
5763 if compile_prog "" "" ; then
5764     getauxval=yes
5765 fi
5766
5767 ########################################
5768 # check if ccache is interfering with
5769 # semantic analysis of macros
5770
5771 unset CCACHE_CPP2
5772 ccache_cpp2=no
5773 cat > $TMPC << EOF
5774 static const int Z = 1;
5775 #define fn() ({ Z; })
5776 #define TAUT(X) ((X) == Z)
5777 #define PAREN(X, Y) (X == Y)
5778 #define ID(X) (X)
5779 int main(int argc, char *argv[])
5780 {
5781     int x = 0, y = 0;
5782     x = ID(x);
5783     x = fn();
5784     fn();
5785     if (PAREN(x, y)) return 0;
5786     if (TAUT(Z)) return 0;
5787     return 0;
5788 }
5789 EOF
5790
5791 if ! compile_object "-Werror"; then
5792     ccache_cpp2=yes
5793 fi
5794
5795 #################################################
5796 # clang does not support glibc + FORTIFY_SOURCE.
5797
5798 if test "$fortify_source" != "no"; then
5799   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5800     fortify_source="no";
5801   elif test -n "$cxx" && has $cxx &&
5802        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5803     fortify_source="no";
5804   else
5805     fortify_source="yes"
5806   fi
5807 fi
5808
5809 ###############################################
5810 # Check if copy_file_range is provided by glibc
5811 have_copy_file_range=no
5812 cat > $TMPC << EOF
5813 #include <unistd.h>
5814 int main(void) {
5815   copy_file_range(0, NULL, 0, NULL, 0, 0);
5816   return 0;
5817 }
5818 EOF
5819 if compile_prog "" "" ; then
5820     have_copy_file_range=yes
5821 fi
5822
5823 ##########################################
5824 # check if struct fsxattr is available via linux/fs.h
5825
5826 have_fsxattr=no
5827 cat > $TMPC << EOF
5828 #include <linux/fs.h>
5829 struct fsxattr foo;
5830 int main(void) {
5831   return 0;
5832 }
5833 EOF
5834 if compile_prog "" "" ; then
5835     have_fsxattr=yes
5836 fi
5837
5838 ##########################################
5839 # check for usable membarrier system call
5840 if test "$membarrier" = "yes"; then
5841     have_membarrier=no
5842     if test "$mingw32" = "yes" ; then
5843         have_membarrier=yes
5844     elif test "$linux" = "yes" ; then
5845         cat > $TMPC << EOF
5846     #include <linux/membarrier.h>
5847     #include <sys/syscall.h>
5848     #include <unistd.h>
5849     #include <stdlib.h>
5850     int main(void) {
5851         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5852         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5853         exit(0);
5854     }
5855 EOF
5856         if compile_prog "" "" ; then
5857             have_membarrier=yes
5858         fi
5859     fi
5860     if test "$have_membarrier" = "no"; then
5861       feature_not_found "membarrier" "membarrier system call not available"
5862     fi
5863 else
5864     # Do not enable it by default even for Mingw32, because it doesn't
5865     # work on Wine.
5866     membarrier=no
5867 fi
5868
5869 ##########################################
5870 # check if rtnetlink.h exists and is useful
5871 have_rtnetlink=no
5872 cat > $TMPC << EOF
5873 #include <linux/rtnetlink.h>
5874 int main(void) {
5875   return IFLA_PROTO_DOWN;
5876 }
5877 EOF
5878 if compile_prog "" "" ; then
5879     have_rtnetlink=yes
5880 fi
5881
5882 ##########################################
5883 # check for usable AF_VSOCK environment
5884 have_af_vsock=no
5885 cat > $TMPC << EOF
5886 #include <errno.h>
5887 #include <sys/types.h>
5888 #include <sys/socket.h>
5889 #if !defined(AF_VSOCK)
5890 # error missing AF_VSOCK flag
5891 #endif
5892 #include <linux/vm_sockets.h>
5893 int main(void) {
5894     int sock, ret;
5895     struct sockaddr_vm svm;
5896     socklen_t len = sizeof(svm);
5897     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5898     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5899     if ((ret == -1) && (errno == ENOTCONN)) {
5900         return 0;
5901     }
5902     return -1;
5903 }
5904 EOF
5905 if compile_prog "" "" ; then
5906     have_af_vsock=yes
5907 fi
5908
5909 ##########################################
5910 # check for usable AF_ALG environment
5911 have_afalg=no
5912 cat > $TMPC << EOF
5913 #include <errno.h>
5914 #include <sys/types.h>
5915 #include <sys/socket.h>
5916 #include <linux/if_alg.h>
5917 int main(void) {
5918     int sock;
5919     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5920     return sock;
5921 }
5922 EOF
5923 if compile_prog "" "" ; then
5924     have_afalg=yes
5925 fi
5926 if test "$crypto_afalg" = "yes"
5927 then
5928     if test "$have_afalg" != "yes"
5929     then
5930         error_exit "AF_ALG requested but could not be detected"
5931     fi
5932 fi
5933
5934
5935 #################################################
5936 # Check to see if we have the Hypervisor framework
5937 if [ "$darwin" = "yes" ] ; then
5938   cat > $TMPC << EOF
5939 #include <Hypervisor/hv.h>
5940 int main() { return 0;}
5941 EOF
5942   if ! compile_object ""; then
5943     hvf='no'
5944   else
5945     hvf='yes'
5946     QEMU_LDFLAGS="-framework Hypervisor $QEMU_LDFLAGS"
5947   fi
5948 fi
5949
5950 ##########################################
5951 # check for sysmacros.h
5952
5953 have_sysmacros=no
5954 cat > $TMPC << EOF
5955 #include <sys/sysmacros.h>
5956 int main(void) {
5957     return makedev(0, 0);
5958 }
5959 EOF
5960 if compile_prog "" "" ; then
5961     have_sysmacros=yes
5962 fi
5963
5964 ##########################################
5965 # check for _Static_assert()
5966
5967 have_static_assert=no
5968 cat > $TMPC << EOF
5969 _Static_assert(1, "success");
5970 int main(void) {
5971     return 0;
5972 }
5973 EOF
5974 if compile_prog "" "" ; then
5975     have_static_assert=yes
5976 fi
5977
5978 ##########################################
5979 # check for utmpx.h, it is missing e.g. on OpenBSD
5980
5981 have_utmpx=no
5982 cat > $TMPC << EOF
5983 #include <utmpx.h>
5984 struct utmpx user_info;
5985 int main(void) {
5986     return 0;
5987 }
5988 EOF
5989 if compile_prog "" "" ; then
5990     have_utmpx=yes
5991 fi
5992
5993 ##########################################
5994 # check for getrandom()
5995
5996 have_getrandom=no
5997 cat > $TMPC << EOF
5998 #include <sys/random.h>
5999 int main(void) {
6000     return getrandom(0, 0, GRND_NONBLOCK);
6001 }
6002 EOF
6003 if compile_prog "" "" ; then
6004     have_getrandom=yes
6005 fi
6006
6007 ##########################################
6008 # checks for sanitizers
6009
6010 have_asan=no
6011 have_ubsan=no
6012 have_asan_iface_h=no
6013 have_asan_iface_fiber=no
6014
6015 if test "$sanitizers" = "yes" ; then
6016   write_c_skeleton
6017   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
6018       have_asan=yes
6019   fi
6020
6021   # we could use a simple skeleton for flags checks, but this also
6022   # detect the static linking issue of ubsan, see also:
6023   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
6024   cat > $TMPC << EOF
6025 #include <stdlib.h>
6026 int main(void) {
6027     void *tmp = malloc(10);
6028     if (tmp != NULL) {
6029         return *(int *)(tmp + 2);
6030     }
6031     return 1;
6032 }
6033 EOF
6034   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
6035       have_ubsan=yes
6036   fi
6037
6038   if check_include "sanitizer/asan_interface.h" ; then
6039       have_asan_iface_h=yes
6040   fi
6041
6042   cat > $TMPC << EOF
6043 #include <sanitizer/asan_interface.h>
6044 int main(void) {
6045   __sanitizer_start_switch_fiber(0, 0, 0);
6046   return 0;
6047 }
6048 EOF
6049   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
6050       have_asan_iface_fiber=yes
6051   fi
6052 fi
6053
6054 ##########################################
6055 # checks for fuzzer
6056 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
6057   write_c_fuzzer_skeleton
6058   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
6059     have_fuzzer=yes
6060   else
6061     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
6062     exit 1
6063   fi
6064 fi
6065
6066 # Thread sanitizer is, for now, much noisier than the other sanitizers;
6067 # keep it separate until that is not the case.
6068 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
6069   error_exit "TSAN is not supported with other sanitiziers."
6070 fi
6071 have_tsan=no
6072 have_tsan_iface_fiber=no
6073 if test "$tsan" = "yes" ; then
6074   write_c_skeleton
6075   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6076       have_tsan=yes
6077   fi
6078   cat > $TMPC << EOF
6079 #include <sanitizer/tsan_interface.h>
6080 int main(void) {
6081   __tsan_create_fiber(0);
6082   return 0;
6083 }
6084 EOF
6085   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
6086       have_tsan_iface_fiber=yes
6087   fi
6088 fi
6089
6090 ##########################################
6091 # check for libpmem
6092
6093 if test "$libpmem" != "no"; then
6094         if $pkg_config --exists "libpmem"; then
6095                 libpmem="yes"
6096                 libpmem_libs=$($pkg_config --libs libpmem)
6097                 libpmem_cflags=$($pkg_config --cflags libpmem)
6098         else
6099                 if test "$libpmem" = "yes" ; then
6100                         feature_not_found "libpmem" "Install nvml or pmdk"
6101                 fi
6102                 libpmem="no"
6103         fi
6104 fi
6105
6106 ##########################################
6107 # check for libdaxctl
6108
6109 if test "$libdaxctl" != "no"; then
6110         if $pkg_config --atleast-version=57 "libdaxctl"; then
6111                 libdaxctl="yes"
6112                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
6113                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
6114         else
6115                 if test "$libdaxctl" = "yes" ; then
6116                         feature_not_found "libdaxctl" "Install libdaxctl"
6117                 fi
6118                 libdaxctl="no"
6119         fi
6120 fi
6121
6122 ##########################################
6123 # check for slirp
6124
6125 # slirp is only required when building softmmu targets
6126 if test -z "$slirp" -a "$softmmu" != "yes" ; then
6127     slirp="no"
6128 fi
6129
6130 case "$slirp" in
6131   "" | yes)
6132     if $pkg_config slirp; then
6133       slirp=system
6134     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
6135       slirp=git
6136     elif test -e "${source_path}/slirp/Makefile" ; then
6137       slirp=internal
6138     elif test -z "$slirp" ; then
6139       slirp=no
6140     else
6141       feature_not_found "slirp" "Install slirp devel or git submodule"
6142     fi
6143     ;;
6144
6145   system)
6146     if ! $pkg_config slirp; then
6147       feature_not_found "slirp" "Install slirp devel"
6148     fi
6149     ;;
6150 esac
6151
6152 case "$slirp" in
6153   git | internal)
6154     if test "$slirp" = git; then
6155       git_submodules="${git_submodules} slirp"
6156     fi
6157     mkdir -p slirp
6158     slirp_cflags="-I${source_path}/slirp/src -Islirp/src"
6159     slirp_libs="-Lslirp -lslirp"
6160     if test "$mingw32" = "yes" ; then
6161       slirp_libs="$slirp_libs -lws2_32 -liphlpapi"
6162     fi
6163     ;;
6164
6165   system)
6166     slirp_version=$($pkg_config --modversion slirp 2>/dev/null)
6167     slirp_cflags=$($pkg_config --cflags slirp 2>/dev/null)
6168     slirp_libs=$($pkg_config --libs slirp 2>/dev/null)
6169     ;;
6170
6171   no)
6172     ;;
6173   *)
6174     error_exit "Unknown state for slirp: $slirp"
6175     ;;
6176 esac
6177
6178 ##########################################
6179 # check for usable __NR_keyctl syscall
6180
6181 if test "$linux" = "yes" ; then
6182
6183     have_keyring=no
6184     cat > $TMPC << EOF
6185 #include <errno.h>
6186 #include <asm/unistd.h>
6187 #include <linux/keyctl.h>
6188 #include <unistd.h>
6189 int main(void) {
6190     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
6191 }
6192 EOF
6193     if compile_prog "" "" ; then
6194         have_keyring=yes
6195     fi
6196 fi
6197 if test "$secret_keyring" != "no"
6198 then
6199     if test "$have_keyring" = "yes"
6200     then
6201         secret_keyring=yes
6202     else
6203         if test "$secret_keyring" = "yes"
6204         then
6205             error_exit "syscall __NR_keyctl requested, \
6206 but not implemented on your system"
6207         else
6208             secret_keyring=no
6209         fi
6210     fi
6211 fi
6212
6213 ##########################################
6214 # End of CC checks
6215 # After here, no more $cc or $ld runs
6216
6217 write_c_skeleton
6218
6219 if test "$gcov" = "yes" ; then
6220   :
6221 elif test "$fortify_source" = "yes" ; then
6222   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
6223   debug=no
6224 fi
6225 if test "$debug_info" = "yes"; then
6226   CFLAGS="-g $CFLAGS"
6227   LDFLAGS="-g $LDFLAGS"
6228 fi
6229 if test "$debug" = "no"; then
6230   CFLAGS="-O2 $CFLAGS"
6231 fi
6232
6233 case "$ARCH" in
6234 alpha)
6235   # Ensure there's only a single GP
6236   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
6237 ;;
6238 esac
6239
6240 if test "$gprof" = "yes" ; then
6241   QEMU_CFLAGS="-p $QEMU_CFLAGS"
6242   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
6243 fi
6244
6245 if test "$have_asan" = "yes"; then
6246   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
6247   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
6248   if test "$have_asan_iface_h" = "no" ; then
6249       echo "ASAN build enabled, but ASAN header missing." \
6250            "Without code annotation, the report may be inferior."
6251   elif test "$have_asan_iface_fiber" = "no" ; then
6252       echo "ASAN build enabled, but ASAN header is too old." \
6253            "Without code annotation, the report may be inferior."
6254   fi
6255 fi
6256 if test "$have_tsan" = "yes" ; then
6257   if test "$have_tsan_iface_fiber" = "yes" ; then
6258     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
6259     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
6260   else
6261     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
6262   fi
6263 elif test "$tsan" = "yes" ; then
6264   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
6265 fi
6266 if test "$have_ubsan" = "yes"; then
6267   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
6268   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
6269 fi
6270
6271 ##########################################
6272 # Do we have libnfs
6273 if test "$libnfs" != "no" ; then
6274   if $pkg_config --atleast-version=1.9.3 libnfs; then
6275     libnfs="yes"
6276     libnfs_libs=$($pkg_config --libs libnfs)
6277   else
6278     if test "$libnfs" = "yes" ; then
6279       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
6280     fi
6281     libnfs="no"
6282   fi
6283 fi
6284
6285 ##########################################
6286 # Do we have libudev
6287 if test "$libudev" != "no" ; then
6288   if $pkg_config libudev && test "$static" != "yes"; then
6289     libudev="yes"
6290     libudev_libs=$($pkg_config --libs libudev)
6291   else
6292     libudev="no"
6293   fi
6294 fi
6295
6296 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
6297 if test "$solaris" = "no" && test "$tsan" = "no"; then
6298     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
6299         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
6300     fi
6301 fi
6302
6303 # test if pod2man has --utf8 option
6304 if pod2man --help | grep -q utf8; then
6305     POD2MAN="pod2man --utf8"
6306 else
6307     POD2MAN="pod2man"
6308 fi
6309
6310 # Use ASLR, no-SEH and DEP if available
6311 if test "$mingw32" = "yes" ; then
6312     for flag in --dynamicbase --no-seh --nxcompat; do
6313         if ld_has $flag ; then
6314             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
6315         fi
6316     done
6317 fi
6318
6319 # Disable OpenBSD W^X if available
6320 if test "$tcg" = "yes" && test "$targetos" = "OpenBSD"; then
6321     cat > $TMPC <<EOF
6322     int main(void) { return 0; }
6323 EOF
6324     wx_ldflags="-Wl,-z,wxneeded"
6325     if compile_prog "" "$wx_ldflags"; then
6326         QEMU_LDFLAGS="$QEMU_LDFLAGS $wx_ldflags"
6327     fi
6328 fi
6329
6330 qemu_confdir="$sysconfdir/$qemu_suffix"
6331 qemu_moddir="$libdir/$qemu_suffix"
6332 qemu_datadir="$datadir/$qemu_suffix"
6333 qemu_docdir="$docdir/$qemu_suffix"
6334 qemu_localedir="$datadir/locale"
6335 qemu_icondir="$datadir/icons"
6336 qemu_desktopdir="$datadir/applications"
6337
6338 # We can only support ivshmem if we have eventfd
6339 if [ "$eventfd" = "yes" ]; then
6340   ivshmem=yes
6341 fi
6342
6343 if test "$softmmu" = yes ; then
6344   if test "$linux" = yes; then
6345     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
6346       virtfs=yes
6347     else
6348       if test "$virtfs" = yes; then
6349         error_exit "VirtFS requires libcap-ng devel and libattr devel"
6350       fi
6351       virtfs=no
6352     fi
6353     if test "$mpath" != no && test "$mpathpersist" = yes ; then
6354       mpath=yes
6355     else
6356       if test "$mpath" = yes; then
6357         error_exit "Multipath requires libmpathpersist devel"
6358       fi
6359       mpath=no
6360     fi
6361   else
6362     if test "$virtfs" = yes; then
6363       error_exit "VirtFS is supported only on Linux"
6364     fi
6365     virtfs=no
6366     if test "$mpath" = yes; then
6367       error_exit "Multipath is supported only on Linux"
6368     fi
6369     mpath=no
6370   fi
6371 fi
6372
6373 # Probe for guest agent support/options
6374
6375 if [ "$guest_agent" != "no" ]; then
6376   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
6377       guest_agent=no
6378   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
6379       guest_agent=yes
6380   elif [ "$guest_agent" != yes ]; then
6381       guest_agent=no
6382   else
6383       error_exit "Guest agent is not supported on this platform"
6384   fi
6385 fi
6386
6387 # Guest agent Window MSI  package
6388
6389 if test "$guest_agent" != yes; then
6390   if test "$guest_agent_msi" = yes; then
6391     error_exit "MSI guest agent package requires guest agent enabled"
6392   fi
6393   guest_agent_msi=no
6394 elif test "$mingw32" != "yes"; then
6395   if test "$guest_agent_msi" = "yes"; then
6396     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
6397   fi
6398   guest_agent_msi=no
6399 elif ! has wixl; then
6400   if test "$guest_agent_msi" = "yes"; then
6401     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
6402   fi
6403   guest_agent_msi=no
6404 else
6405   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
6406   # disabled explicitly
6407   if test "$guest_agent_msi" != "no"; then
6408     guest_agent_msi=yes
6409   fi
6410 fi
6411
6412 if test "$guest_agent_msi" = "yes"; then
6413   if test "$guest_agent_with_vss" = "yes"; then
6414     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
6415   fi
6416
6417   if test "$QEMU_GA_MANUFACTURER" = ""; then
6418     QEMU_GA_MANUFACTURER=QEMU
6419   fi
6420
6421   if test "$QEMU_GA_DISTRO" = ""; then
6422     QEMU_GA_DISTRO=Linux
6423   fi
6424
6425   if test "$QEMU_GA_VERSION" = ""; then
6426       QEMU_GA_VERSION=$(cat $source_path/VERSION)
6427   fi
6428
6429   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
6430
6431   case "$cpu" in
6432   x86_64)
6433     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
6434     ;;
6435   i386)
6436     QEMU_GA_MSI_ARCH="-D Arch=32"
6437     ;;
6438   *)
6439     error_exit "CPU $cpu not supported for building installation package"
6440     ;;
6441   esac
6442 fi
6443
6444 # Mac OS X ships with a broken assembler
6445 roms=
6446 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
6447         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
6448         test "$softmmu" = yes ; then
6449     # Different host OS linkers have different ideas about the name of the ELF
6450     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
6451     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
6452     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
6453         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
6454             ld_i386_emulation="$emu"
6455             roms="optionrom"
6456             break
6457         fi
6458     done
6459 fi
6460
6461 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
6462 if test "$cpu" = "s390x" ; then
6463   write_c_skeleton
6464   if compile_prog "-march=z900" ""; then
6465     roms="$roms s390-ccw"
6466     # SLOF is required for building the s390-ccw firmware on s390x,
6467     # since it is using the libnet code from SLOF for network booting.
6468     if test -e "${source_path}/.git" ; then
6469       git_submodules="${git_submodules} roms/SLOF"
6470     fi
6471   fi
6472 fi
6473
6474 # Check that the C++ compiler exists and works with the C compiler.
6475 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
6476 if has $cxx; then
6477     cat > $TMPC <<EOF
6478 int c_function(void);
6479 int main(void) { return c_function(); }
6480 EOF
6481
6482     compile_object
6483
6484     cat > $TMPCXX <<EOF
6485 extern "C" {
6486    int c_function(void);
6487 }
6488 int c_function(void) { return 42; }
6489 EOF
6490
6491     update_cxxflags
6492
6493     if do_cxx $CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
6494         # C++ compiler $cxx works ok with C compiler $cc
6495         :
6496     else
6497         echo "C++ compiler $cxx does not work with C compiler $cc"
6498         echo "Disabling C++ specific optional code"
6499         cxx=
6500     fi
6501 else
6502     echo "No C++ compiler available; disabling C++ specific optional code"
6503     cxx=
6504 fi
6505
6506 if test $git_update = 'yes' ; then
6507     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
6508 fi
6509 if test "$fdt" = "git" ; then
6510     symlink "$source_path/dtc/Makefile" "dtc/Makefile"
6511 fi
6512
6513 config_host_mak="config-host.mak"
6514
6515 echo "# Automatically generated by configure - do not modify" > $config_host_mak
6516 echo >> $config_host_mak
6517
6518 echo all: >> $config_host_mak
6519 echo "prefix=$prefix" >> $config_host_mak
6520 echo "bindir=$bindir" >> $config_host_mak
6521 echo "libdir=$libdir" >> $config_host_mak
6522 echo "libexecdir=$libexecdir" >> $config_host_mak
6523 echo "includedir=$includedir" >> $config_host_mak
6524 echo "sysconfdir=$sysconfdir" >> $config_host_mak
6525 echo "qemu_confdir=$qemu_confdir" >> $config_host_mak
6526 echo "qemu_datadir=$qemu_datadir" >> $config_host_mak
6527 echo "qemu_firmwarepath=$firmwarepath" >> $config_host_mak
6528 echo "qemu_moddir=$qemu_moddir" >> $config_host_mak
6529 if test "$mingw32" = "no" ; then
6530   echo "qemu_localstatedir=$local_statedir" >> $config_host_mak
6531 fi
6532 echo "qemu_helperdir=$libexecdir" >> $config_host_mak
6533 echo "qemu_localedir=$qemu_localedir" >> $config_host_mak
6534 echo "qemu_icondir=$qemu_icondir" >> $config_host_mak
6535 echo "qemu_desktopdir=$qemu_desktopdir" >> $config_host_mak
6536 echo "GIT=$git" >> $config_host_mak
6537 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
6538 echo "GIT_UPDATE=$git_update" >> $config_host_mak
6539
6540 echo "ARCH=$ARCH" >> $config_host_mak
6541
6542 if test "$default_devices" = "yes" ; then
6543   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
6544 else
6545   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
6546 fi
6547 if test "$debug_tcg" = "yes" ; then
6548   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
6549 fi
6550 if test "$strip_opt" = "yes" ; then
6551   echo "STRIP=${strip}" >> $config_host_mak
6552 fi
6553 if test "$bigendian" = "yes" ; then
6554   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
6555 fi
6556 if test "$mingw32" = "yes" ; then
6557   echo "CONFIG_WIN32=y" >> $config_host_mak
6558   rc_version=$(cat $source_path/VERSION)
6559   version_major=${rc_version%%.*}
6560   rc_version=${rc_version#*.}
6561   version_minor=${rc_version%%.*}
6562   rc_version=${rc_version#*.}
6563   version_subminor=${rc_version%%.*}
6564   version_micro=0
6565   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6566   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
6567   if test "$guest_agent_with_vss" = "yes" ; then
6568     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
6569     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
6570     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
6571   fi
6572   if test "$guest_agent_ntddscsi" = "yes" ; then
6573     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
6574   fi
6575   if test "$guest_agent_msi" = "yes"; then
6576     echo "QEMU_GA_MSI_ENABLED=yes" >> $config_host_mak
6577     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
6578     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
6579     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
6580     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
6581     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
6582     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
6583   fi
6584 else
6585   echo "CONFIG_POSIX=y" >> $config_host_mak
6586 fi
6587
6588 if test "$linux" = "yes" ; then
6589   echo "CONFIG_LINUX=y" >> $config_host_mak
6590 fi
6591
6592 if test "$darwin" = "yes" ; then
6593   echo "CONFIG_DARWIN=y" >> $config_host_mak
6594 fi
6595
6596 if test "$solaris" = "yes" ; then
6597   echo "CONFIG_SOLARIS=y" >> $config_host_mak
6598 fi
6599 if test "$haiku" = "yes" ; then
6600   echo "CONFIG_HAIKU=y" >> $config_host_mak
6601 fi
6602 if test "$static" = "yes" ; then
6603   echo "CONFIG_STATIC=y" >> $config_host_mak
6604 fi
6605 if test "$profiler" = "yes" ; then
6606   echo "CONFIG_PROFILER=y" >> $config_host_mak
6607 fi
6608 if test "$want_tools" = "yes" ; then
6609   echo "CONFIG_TOOLS=y" >> $config_host_mak
6610 fi
6611 if test "$guest_agent" = "yes" ; then
6612   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
6613 fi
6614 if test "$slirp" != "no"; then
6615   echo "CONFIG_SLIRP=y" >> $config_host_mak
6616   echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
6617   echo "SLIRP_CFLAGS=$slirp_cflags" >> $config_host_mak
6618   echo "SLIRP_LIBS=$slirp_libs" >> $config_host_mak
6619 fi
6620 subdirs=
6621 if [ "$slirp" = "git" -o "$slirp" = "internal" ]; then
6622   subdirs="$subdirs slirp"
6623 fi
6624 if test "$vde" = "yes" ; then
6625   echo "CONFIG_VDE=y" >> $config_host_mak
6626   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
6627 fi
6628 if test "$netmap" = "yes" ; then
6629   echo "CONFIG_NETMAP=y" >> $config_host_mak
6630 fi
6631 if test "$l2tpv3" = "yes" ; then
6632   echo "CONFIG_L2TPV3=y" >> $config_host_mak
6633 fi
6634 if test "$gprof" = "yes" ; then
6635   echo "CONFIG_GPROF=y" >> $config_host_mak
6636 fi
6637 if test "$cap_ng" = "yes" ; then
6638   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
6639   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
6640 fi
6641 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
6642 for drv in $audio_drv_list; do
6643     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
6644     echo "$def=y" >> $config_host_mak
6645 done
6646 if test "$alsa" = "yes" ; then
6647     echo "CONFIG_ALSA=y" >> $config_host_mak
6648 fi
6649 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
6650 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
6651 if test "$libpulse" = "yes" ; then
6652     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
6653 fi
6654 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6655 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6656 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6657 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6658 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6659 if test "$libjack" = "yes" ; then
6660     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6661 fi
6662 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6663 if test "$audio_win_int" = "yes" ; then
6664   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6665 fi
6666 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6667 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6668 if test "$xfs" = "yes" ; then
6669   echo "CONFIG_XFS=y" >> $config_host_mak
6670 fi
6671 qemu_version=$(head $source_path/VERSION)
6672 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6673 echo "SRC_PATH=$source_path" >> $config_host_mak
6674 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6675 if [ "$docs" = "yes" ] ; then
6676   echo "BUILD_DOCS=yes" >> $config_host_mak
6677 fi
6678 if test "$modules" = "yes"; then
6679   # $shacmd can generate a hash started with digit, which the compiler doesn't
6680   # like as an symbol. So prefix it with an underscore
6681   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6682   echo "CONFIG_MODULES=y" >> $config_host_mak
6683 fi
6684 if test "$module_upgrades" = "yes"; then
6685   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6686 fi
6687 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6688   echo "CONFIG_X11=y" >> $config_host_mak
6689   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6690   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6691 fi
6692 if test "$cocoa" = "yes" ; then
6693   echo "CONFIG_COCOA=y" >> $config_host_mak
6694 fi
6695 if test "$iconv" = "yes" ; then
6696   echo "CONFIG_ICONV=y" >> $config_host_mak
6697   echo "ICONV_CFLAGS=$iconv_cflags" >> $config_host_mak
6698   echo "ICONV_LIBS=$iconv_lib" >> $config_host_mak
6699 fi
6700 if test "$curses" = "yes" ; then
6701   echo "CONFIG_CURSES=y" >> $config_host_mak
6702   echo "CURSES_CFLAGS=$curses_inc" >> $config_host_mak
6703   echo "CURSES_LIBS=$curses_lib" >> $config_host_mak
6704 fi
6705 if test "$pipe2" = "yes" ; then
6706   echo "CONFIG_PIPE2=y" >> $config_host_mak
6707 fi
6708 if test "$accept4" = "yes" ; then
6709   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6710 fi
6711 if test "$splice" = "yes" ; then
6712   echo "CONFIG_SPLICE=y" >> $config_host_mak
6713 fi
6714 if test "$eventfd" = "yes" ; then
6715   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6716 fi
6717 if test "$memfd" = "yes" ; then
6718   echo "CONFIG_MEMFD=y" >> $config_host_mak
6719 fi
6720 if test "$have_usbfs" = "yes" ; then
6721   echo "CONFIG_USBFS=y" >> $config_host_mak
6722 fi
6723 if test "$fallocate" = "yes" ; then
6724   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6725 fi
6726 if test "$fallocate_punch_hole" = "yes" ; then
6727   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6728 fi
6729 if test "$fallocate_zero_range" = "yes" ; then
6730   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6731 fi
6732 if test "$posix_fallocate" = "yes" ; then
6733   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6734 fi
6735 if test "$sync_file_range" = "yes" ; then
6736   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6737 fi
6738 if test "$fiemap" = "yes" ; then
6739   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6740 fi
6741 if test "$dup3" = "yes" ; then
6742   echo "CONFIG_DUP3=y" >> $config_host_mak
6743 fi
6744 if test "$ppoll" = "yes" ; then
6745   echo "CONFIG_PPOLL=y" >> $config_host_mak
6746 fi
6747 if test "$prctl_pr_set_timerslack" = "yes" ; then
6748   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6749 fi
6750 if test "$epoll" = "yes" ; then
6751   echo "CONFIG_EPOLL=y" >> $config_host_mak
6752 fi
6753 if test "$epoll_create1" = "yes" ; then
6754   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6755 fi
6756 if test "$sendfile" = "yes" ; then
6757   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6758 fi
6759 if test "$timerfd" = "yes" ; then
6760   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6761 fi
6762 if test "$setns" = "yes" ; then
6763   echo "CONFIG_SETNS=y" >> $config_host_mak
6764 fi
6765 if test "$clock_adjtime" = "yes" ; then
6766   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6767 fi
6768 if test "$syncfs" = "yes" ; then
6769   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6770 fi
6771 if test "$kcov" = "yes" ; then
6772   echo "CONFIG_KCOV=y" >> $config_host_mak
6773 fi
6774 if test "$btrfs" = "yes" ; then
6775   echo "CONFIG_BTRFS=y" >> $config_host_mak
6776 fi
6777 if test "$inotify" = "yes" ; then
6778   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6779 fi
6780 if test "$inotify1" = "yes" ; then
6781   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6782 fi
6783 if test "$sem_timedwait" = "yes" ; then
6784   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6785 fi
6786 if test "$strchrnul" = "yes" ; then
6787   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6788 fi
6789 if test "$st_atim" = "yes" ; then
6790   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6791 fi
6792 if test "$byteswap_h" = "yes" ; then
6793   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6794 fi
6795 if test "$bswap_h" = "yes" ; then
6796   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6797 fi
6798 if test "$curl" = "yes" ; then
6799   echo "CONFIG_CURL=y" >> $config_host_mak
6800   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6801   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6802 fi
6803 if test "$brlapi" = "yes" ; then
6804   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6805   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6806 fi
6807 if test "$gtk" = "yes" ; then
6808   echo "CONFIG_GTK=y" >> $config_host_mak
6809   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6810   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6811   if test "$gtk_gl" = "yes" ; then
6812     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6813   fi
6814 fi
6815 if test "$gio" = "yes" ; then
6816     echo "CONFIG_GIO=y" >> $config_host_mak
6817     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6818     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6819     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6820 fi
6821 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6822 if test "$gnutls" = "yes" ; then
6823   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6824   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6825   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6826 fi
6827 if test "$gcrypt" = "yes" ; then
6828   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6829   if test "$gcrypt_hmac" = "yes" ; then
6830     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6831   fi
6832   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6833   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6834 fi
6835 if test "$nettle" = "yes" ; then
6836   echo "CONFIG_NETTLE=y" >> $config_host_mak
6837   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6838   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6839   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6840 fi
6841 if test "$qemu_private_xts" = "yes" ; then
6842   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6843 fi
6844 if test "$tasn1" = "yes" ; then
6845   echo "CONFIG_TASN1=y" >> $config_host_mak
6846 fi
6847 if test "$auth_pam" = "yes" ; then
6848     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6849 fi
6850 if test "$have_ifaddrs_h" = "yes" ; then
6851     echo "HAVE_IFADDRS_H=y" >> $config_host_mak
6852 fi
6853 if test "$have_drm_h" = "yes" ; then
6854   echo "HAVE_DRM_H=y" >> $config_host_mak
6855 fi
6856 if test "$have_broken_size_max" = "yes" ; then
6857     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6858 fi
6859 if test "$have_openpty" = "yes" ; then
6860     echo "HAVE_OPENPTY=y" >> $config_host_mak
6861 fi
6862 if test "$have_sys_signal_h" = "yes" ; then
6863     echo "HAVE_SYS_SIGNAL_H=y" >> $config_host_mak
6864 fi
6865
6866 # Work around a system header bug with some kernel/XFS header
6867 # versions where they both try to define 'struct fsxattr':
6868 # xfs headers will not try to redefine structs from linux headers
6869 # if this macro is set.
6870 if test "$have_fsxattr" = "yes" ; then
6871     echo "HAVE_FSXATTR=y" >> $config_host_mak
6872 fi
6873 if test "$have_copy_file_range" = "yes" ; then
6874     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6875 fi
6876 if test "$vte" = "yes" ; then
6877   echo "CONFIG_VTE=y" >> $config_host_mak
6878   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6879   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6880 fi
6881 if test "$virglrenderer" = "yes" ; then
6882   echo "CONFIG_VIRGL=y" >> $config_host_mak
6883   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6884   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6885 fi
6886 if test "$xen" = "yes" ; then
6887   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6888   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6889   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6890   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6891 fi
6892 if test "$linux_aio" = "yes" ; then
6893   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6894 fi
6895 if test "$linux_io_uring" = "yes" ; then
6896   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6897   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6898   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6899 fi
6900 if test "$attr" = "yes" ; then
6901   echo "CONFIG_ATTR=y" >> $config_host_mak
6902   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6903 fi
6904 if test "$libattr" = "yes" ; then
6905   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6906 fi
6907 if test "$virtfs" = "yes" ; then
6908   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6909 fi
6910 if test "$mpath" = "yes" ; then
6911   echo "CONFIG_MPATH=y" >> $config_host_mak
6912   if test "$mpathpersist_new_api" = "yes"; then
6913     echo "CONFIG_MPATH_NEW_API=y" >> $config_host_mak
6914   fi
6915 fi
6916 if test "$vhost_scsi" = "yes" ; then
6917   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6918 fi
6919 if test "$vhost_net" = "yes" ; then
6920   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6921 fi
6922 if test "$vhost_net_user" = "yes" ; then
6923   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6924 fi
6925 if test "$vhost_net_vdpa" = "yes" ; then
6926   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6927 fi
6928 if test "$vhost_crypto" = "yes" ; then
6929   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6930 fi
6931 if test "$vhost_vsock" = "yes" ; then
6932   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6933   if test "$vhost_user" = "yes" ; then
6934     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6935   fi
6936 fi
6937 if test "$vhost_kernel" = "yes" ; then
6938   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6939 fi
6940 if test "$vhost_user" = "yes" ; then
6941   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6942 fi
6943 if test "$vhost_vdpa" = "yes" ; then
6944   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6945 fi
6946 if test "$vhost_user_fs" = "yes" ; then
6947   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6948 fi
6949 if test "$blobs" = "yes" ; then
6950   echo "INSTALL_BLOBS=yes" >> $config_host_mak
6951 fi
6952 if test "$iovec" = "yes" ; then
6953   echo "CONFIG_IOVEC=y" >> $config_host_mak
6954 fi
6955 if test "$preadv" = "yes" ; then
6956   echo "CONFIG_PREADV=y" >> $config_host_mak
6957 fi
6958 if test "$fdt" != "no" ; then
6959   echo "CONFIG_FDT=y" >> $config_host_mak
6960   echo "FDT_CFLAGS=$fdt_cflags" >> $config_host_mak
6961   echo "FDT_LIBS=$fdt_ldflags $fdt_libs" >> $config_host_mak
6962 fi
6963 if test "$membarrier" = "yes" ; then
6964   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6965 fi
6966 if test "$signalfd" = "yes" ; then
6967   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6968 fi
6969 if test "$optreset" = "yes" ; then
6970   echo "HAVE_OPTRESET=y" >> $config_host_mak
6971 fi
6972 if test "$tcg" = "yes"; then
6973   echo "CONFIG_TCG=y" >> $config_host_mak
6974   if test "$tcg_interpreter" = "yes" ; then
6975     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6976   fi
6977 fi
6978 if test "$fdatasync" = "yes" ; then
6979   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6980 fi
6981 if test "$madvise" = "yes" ; then
6982   echo "CONFIG_MADVISE=y" >> $config_host_mak
6983 fi
6984 if test "$posix_madvise" = "yes" ; then
6985   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6986 fi
6987 if test "$posix_memalign" = "yes" ; then
6988   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6989 fi
6990 if test "$spice" = "yes" ; then
6991   echo "CONFIG_SPICE=y" >> $config_host_mak
6992   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6993   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6994 fi
6995
6996 if test "$smartcard" = "yes" ; then
6997   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6998   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6999   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
7000 fi
7001
7002 if test "$libusb" = "yes" ; then
7003   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
7004   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
7005   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
7006 fi
7007
7008 if test "$usb_redir" = "yes" ; then
7009   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
7010   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
7011   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
7012 fi
7013
7014 if test "$opengl" = "yes" ; then
7015   echo "CONFIG_OPENGL=y" >> $config_host_mak
7016   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
7017   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
7018   if test "$opengl_dmabuf" = "yes" ; then
7019     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
7020   fi
7021 fi
7022
7023 if test "$gbm" = "yes" ; then
7024     echo "CONFIG_GBM=y" >> $config_host_mak
7025     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
7026     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
7027 fi
7028
7029
7030 if test "$malloc_trim" = "yes" ; then
7031   echo "CONFIG_MALLOC_TRIM=y" >> $config_host_mak
7032 fi
7033
7034 if test "$avx2_opt" = "yes" ; then
7035   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
7036 fi
7037
7038 if test "$avx512f_opt" = "yes" ; then
7039   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
7040 fi
7041
7042 if test "$lzo" = "yes" ; then
7043   echo "CONFIG_LZO=y" >> $config_host_mak
7044   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
7045 fi
7046
7047 if test "$snappy" = "yes" ; then
7048   echo "CONFIG_SNAPPY=y" >> $config_host_mak
7049   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
7050 fi
7051
7052 if test "$bzip2" = "yes" ; then
7053   echo "CONFIG_BZIP2=y" >> $config_host_mak
7054   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
7055 fi
7056
7057 if test "$lzfse" = "yes" ; then
7058   echo "CONFIG_LZFSE=y" >> $config_host_mak
7059   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
7060 fi
7061
7062 if test "$zstd" = "yes" ; then
7063   echo "CONFIG_ZSTD=y" >> $config_host_mak
7064   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
7065   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
7066 fi
7067
7068 if test "$libiscsi" = "yes" ; then
7069   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
7070   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
7071   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
7072 fi
7073
7074 if test "$libnfs" = "yes" ; then
7075   echo "CONFIG_LIBNFS=y" >> $config_host_mak
7076   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
7077 fi
7078
7079 if test "$seccomp" = "yes"; then
7080   echo "CONFIG_SECCOMP=y" >> $config_host_mak
7081   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
7082   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
7083 fi
7084
7085 # XXX: suppress that
7086 if [ "$bsd" = "yes" ] ; then
7087   echo "CONFIG_BSD=y" >> $config_host_mak
7088 fi
7089
7090 if test "$localtime_r" = "yes" ; then
7091   echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak
7092 fi
7093 if test "$qom_cast_debug" = "yes" ; then
7094   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
7095 fi
7096 if test "$rbd" = "yes" ; then
7097   echo "CONFIG_RBD=y" >> $config_host_mak
7098   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
7099 fi
7100
7101 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
7102 if test "$coroutine_pool" = "yes" ; then
7103   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
7104 else
7105   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
7106 fi
7107
7108 if test "$debug_stack_usage" = "yes" ; then
7109   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
7110 fi
7111
7112 if test "$crypto_afalg" = "yes" ; then
7113   echo "CONFIG_AF_ALG=y" >> $config_host_mak
7114 fi
7115
7116 if test "$open_by_handle_at" = "yes" ; then
7117   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
7118 fi
7119
7120 if test "$linux_magic_h" = "yes" ; then
7121   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
7122 fi
7123
7124 if test "$valgrind_h" = "yes" ; then
7125   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
7126 fi
7127
7128 if test "$have_asan_iface_fiber" = "yes" ; then
7129     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
7130 fi
7131
7132 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
7133     echo "CONFIG_TSAN=y" >> $config_host_mak
7134 fi
7135
7136 if test "$has_environ" = "yes" ; then
7137   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
7138 fi
7139
7140 if test "$cpuid_h" = "yes" ; then
7141   echo "CONFIG_CPUID_H=y" >> $config_host_mak
7142 fi
7143
7144 if test "$int128" = "yes" ; then
7145   echo "CONFIG_INT128=y" >> $config_host_mak
7146 fi
7147
7148 if test "$atomic128" = "yes" ; then
7149   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
7150 fi
7151
7152 if test "$cmpxchg128" = "yes" ; then
7153   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
7154 fi
7155
7156 if test "$atomic64" = "yes" ; then
7157   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
7158 fi
7159
7160 if test "$attralias" = "yes" ; then
7161   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
7162 fi
7163
7164 if test "$getauxval" = "yes" ; then
7165   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
7166 fi
7167
7168 if test "$glusterfs" = "yes" ; then
7169   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
7170   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
7171   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
7172 fi
7173
7174 if test "$glusterfs_xlator_opt" = "yes" ; then
7175   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
7176 fi
7177
7178 if test "$glusterfs_discard" = "yes" ; then
7179   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
7180 fi
7181
7182 if test "$glusterfs_fallocate" = "yes" ; then
7183   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
7184 fi
7185
7186 if test "$glusterfs_zerofill" = "yes" ; then
7187   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
7188 fi
7189
7190 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
7191   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
7192 fi
7193
7194 if test "$glusterfs_iocb_has_stat" = "yes" ; then
7195   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
7196 fi
7197
7198 if test "$libssh" = "yes" ; then
7199   echo "CONFIG_LIBSSH=y" >> $config_host_mak
7200   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
7201   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
7202 fi
7203
7204 if test "$live_block_migration" = "yes" ; then
7205   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
7206 fi
7207
7208 if test "$tpm" = "yes"; then
7209   echo 'CONFIG_TPM=y' >> $config_host_mak
7210 fi
7211
7212 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
7213 if have_backend "nop"; then
7214   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
7215 fi
7216 if have_backend "simple"; then
7217   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
7218   # Set the appropriate trace file.
7219   trace_file="\"$trace_file-\" FMT_pid"
7220 fi
7221 if have_backend "log"; then
7222   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
7223 fi
7224 if have_backend "ust"; then
7225   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
7226   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
7227   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
7228 fi
7229 if have_backend "dtrace"; then
7230   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
7231   if test "$trace_backend_stap" = "yes" ; then
7232     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
7233   fi
7234 fi
7235 if have_backend "ftrace"; then
7236   if test "$linux" = "yes" ; then
7237     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
7238   else
7239     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
7240   fi
7241 fi
7242 if have_backend "syslog"; then
7243   if test "$posix_syslog" = "yes" ; then
7244     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
7245   else
7246     feature_not_found "syslog(trace backend)" "syslog not available"
7247   fi
7248 fi
7249 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
7250
7251 if test "$rdma" = "yes" ; then
7252   echo "CONFIG_RDMA=y" >> $config_host_mak
7253   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
7254 fi
7255
7256 if test "$pvrdma" = "yes" ; then
7257   echo "CONFIG_PVRDMA=y" >> $config_host_mak
7258 fi
7259
7260 if test "$have_rtnetlink" = "yes" ; then
7261   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
7262 fi
7263
7264 if test "$libxml2" = "yes" ; then
7265   echo "CONFIG_LIBXML2=y" >> $config_host_mak
7266   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
7267   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
7268 fi
7269
7270 if test "$replication" = "yes" ; then
7271   echo "CONFIG_REPLICATION=y" >> $config_host_mak
7272 fi
7273
7274 if test "$have_af_vsock" = "yes" ; then
7275   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
7276 fi
7277
7278 if test "$have_sysmacros" = "yes" ; then
7279   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
7280 fi
7281
7282 if test "$have_static_assert" = "yes" ; then
7283   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
7284 fi
7285
7286 if test "$have_utmpx" = "yes" ; then
7287   echo "HAVE_UTMPX=y" >> $config_host_mak
7288 fi
7289 if test "$have_getrandom" = "yes" ; then
7290   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
7291 fi
7292 if test "$ivshmem" = "yes" ; then
7293   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
7294 fi
7295 if test "$capstone" != "no" ; then
7296   echo "CONFIG_CAPSTONE=y" >> $config_host_mak
7297   echo "CAPSTONE_CFLAGS=$capstone_cflags" >> $config_host_mak
7298   echo "CAPSTONE_LIBS=$capstone_libs" >> $config_host_mak
7299 fi
7300 if test "$debug_mutex" = "yes" ; then
7301   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
7302 fi
7303
7304 # Hold two types of flag:
7305 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
7306 #                                     a thread we have a handle to
7307 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
7308 #                                     platform
7309 if test "$pthread_setname_np_w_tid" = "yes" ; then
7310   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7311   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
7312 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
7313   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
7314   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
7315 fi
7316
7317 if test "$libpmem" = "yes" ; then
7318   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
7319   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
7320   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
7321 fi
7322
7323 if test "$libdaxctl" = "yes" ; then
7324   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
7325   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
7326 fi
7327
7328 if test "$bochs" = "yes" ; then
7329   echo "CONFIG_BOCHS=y" >> $config_host_mak
7330 fi
7331 if test "$cloop" = "yes" ; then
7332   echo "CONFIG_CLOOP=y" >> $config_host_mak
7333 fi
7334 if test "$dmg" = "yes" ; then
7335   echo "CONFIG_DMG=y" >> $config_host_mak
7336 fi
7337 if test "$qcow1" = "yes" ; then
7338   echo "CONFIG_QCOW1=y" >> $config_host_mak
7339 fi
7340 if test "$vdi" = "yes" ; then
7341   echo "CONFIG_VDI=y" >> $config_host_mak
7342 fi
7343 if test "$vvfat" = "yes" ; then
7344   echo "CONFIG_VVFAT=y" >> $config_host_mak
7345 fi
7346 if test "$qed" = "yes" ; then
7347   echo "CONFIG_QED=y" >> $config_host_mak
7348 fi
7349 if test "$parallels" = "yes" ; then
7350   echo "CONFIG_PARALLELS=y" >> $config_host_mak
7351 fi
7352 if test "$sheepdog" = "yes" ; then
7353   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
7354 fi
7355 if test "$pty_h" = "yes" ; then
7356   echo "HAVE_PTY_H=y" >> $config_host_mak
7357 fi
7358 if test "$have_mlockall" = "yes" ; then
7359   echo "HAVE_MLOCKALL=y" >> $config_host_mak
7360 fi
7361 if test "$fuzzing" = "yes" ; then
7362   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
7363   # needed CFLAGS have already been provided
7364   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
7365     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
7366     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
7367   else
7368     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
7369   fi
7370 fi
7371
7372 if test "$plugins" = "yes" ; then
7373     echo "CONFIG_PLUGIN=y" >> $config_host_mak
7374     # Copy the export object list to the build dir
7375     if test "$ld_dynamic_list" = "yes" ; then
7376         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
7377         ld_symbols=qemu-plugins-ld.symbols
7378         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
7379     elif test "$ld_exported_symbols_list" = "yes" ; then
7380         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
7381         ld64_symbols=qemu-plugins-ld64.symbols
7382         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
7383         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
7384             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
7385     else
7386         error_exit \
7387             "If \$plugins=yes, either \$ld_dynamic_list or " \
7388             "\$ld_exported_symbols_list should have been set to 'yes'."
7389     fi
7390 fi
7391
7392 if test -n "$gdb_bin" ; then
7393     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
7394 fi
7395
7396 if test "$secret_keyring" = "yes" ; then
7397   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
7398 fi
7399
7400 if test "$tcg_interpreter" = "yes"; then
7401   QEMU_INCLUDES="-iquote ${source_path}/tcg/tci $QEMU_INCLUDES"
7402 elif test "$ARCH" = "sparc64" ; then
7403   QEMU_INCLUDES="-iquote ${source_path}/tcg/sparc $QEMU_INCLUDES"
7404 elif test "$ARCH" = "s390x" ; then
7405   QEMU_INCLUDES="-iquote ${source_path}/tcg/s390 $QEMU_INCLUDES"
7406 elif test "$ARCH" = "x86_64" || test "$ARCH" = "x32" ; then
7407   QEMU_INCLUDES="-iquote ${source_path}/tcg/i386 $QEMU_INCLUDES"
7408 elif test "$ARCH" = "ppc64" ; then
7409   QEMU_INCLUDES="-iquote ${source_path}/tcg/ppc $QEMU_INCLUDES"
7410 elif test "$ARCH" = "riscv32" || test "$ARCH" = "riscv64" ; then
7411   QEMU_INCLUDES="-I${source_path}/tcg/riscv $QEMU_INCLUDES"
7412 else
7413   QEMU_INCLUDES="-iquote ${source_path}/tcg/${ARCH} $QEMU_INCLUDES"
7414 fi
7415
7416 echo "ROMS=$roms" >> $config_host_mak
7417 echo "MAKE=$make" >> $config_host_mak
7418 echo "PYTHON=$python" >> $config_host_mak
7419 echo "SPHINX_BUILD=$sphinx_build" >> $config_host_mak
7420 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
7421 echo "MESON=$meson" >> $config_host_mak
7422 echo "CC=$cc" >> $config_host_mak
7423 if $iasl -h > /dev/null 2>&1; then
7424   echo "CONFIG_IASL=$iasl" >> $config_host_mak
7425 fi
7426 echo "CXX=$cxx" >> $config_host_mak
7427 echo "OBJCC=$objcc" >> $config_host_mak
7428 echo "AR=$ar" >> $config_host_mak
7429 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
7430 echo "AS=$as" >> $config_host_mak
7431 echo "CCAS=$ccas" >> $config_host_mak
7432 echo "CPP=$cpp" >> $config_host_mak
7433 echo "OBJCOPY=$objcopy" >> $config_host_mak
7434 echo "LD=$ld" >> $config_host_mak
7435 echo "RANLIB=$ranlib" >> $config_host_mak
7436 echo "NM=$nm" >> $config_host_mak
7437 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
7438 echo "WINDRES=$windres" >> $config_host_mak
7439 echo "CFLAGS=$CFLAGS" >> $config_host_mak
7440 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
7441 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
7442 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
7443 echo "QEMU_INCLUDES=$QEMU_INCLUDES" >> $config_host_mak
7444 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
7445 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
7446 if test "$sparse" = "yes" ; then
7447   echo "SPARSE_CFLAGS = -Wbitwise -Wno-transparent-union -Wno-old-initializer -Wno-non-pointer-null" >> $config_host_mak
7448 fi
7449 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
7450 echo "LDFLAGS_NOPIE=$LDFLAGS_NOPIE" >> $config_host_mak
7451 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
7452 echo "PTHREAD_LIB=$PTHREAD_LIB" >> $config_host_mak
7453 echo "EXESUF=$EXESUF" >> $config_host_mak
7454 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
7455 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
7456 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
7457 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
7458 echo "POD2MAN=$POD2MAN" >> $config_host_mak
7459 if test "$gcov" = "yes" ; then
7460   echo "CONFIG_GCOV=y" >> $config_host_mak
7461 fi
7462
7463 if test "$libudev" != "no"; then
7464     echo "CONFIG_LIBUDEV=y" >> $config_host_mak
7465     echo "LIBUDEV_LIBS=$libudev_libs" >> $config_host_mak
7466 fi
7467 if test "$fuzzing" != "no"; then
7468     echo "CONFIG_FUZZ=y" >> $config_host_mak
7469 fi
7470 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
7471
7472 if test "$edk2_blobs" = "yes" ; then
7473   echo "DECOMPRESS_EDK2_BLOBS=y" >> $config_host_mak
7474 fi
7475
7476 if test "$rng_none" = "yes"; then
7477   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
7478 fi
7479
7480 # use included Linux headers
7481 if test "$linux" = "yes" ; then
7482   mkdir -p linux-headers
7483   case "$cpu" in
7484   i386|x86_64|x32)
7485     linux_arch=x86
7486     ;;
7487   ppc|ppc64|ppc64le)
7488     linux_arch=powerpc
7489     ;;
7490   s390x)
7491     linux_arch=s390
7492     ;;
7493   aarch64)
7494     linux_arch=arm64
7495     ;;
7496   mips64)
7497     linux_arch=mips
7498     ;;
7499   *)
7500     # For most CPUs the kernel architecture name and QEMU CPU name match.
7501     linux_arch="$cpu"
7502     ;;
7503   esac
7504     # For non-KVM architectures we will not have asm headers
7505     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
7506       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
7507     fi
7508 fi
7509
7510 for target in $target_list; do
7511 target_dir="$target"
7512 config_target_mak=$target_dir/config-target.mak
7513 target_name=$(echo $target | cut -d '-' -f 1)
7514 target_aligned_only="no"
7515 case "$target_name" in
7516   alpha|hppa|mips64el|mips64|mipsel|mips|mipsn32|mipsn32el|sh4|sh4eb|sparc|sparc64|sparc32plus|xtensa|xtensaeb)
7517   target_aligned_only="yes"
7518   ;;
7519 esac
7520 target_bigendian="no"
7521 case "$target_name" in
7522   armeb|aarch64_be|hppa|lm32|m68k|microblaze|mips|mipsn32|mips64|moxie|or1k|ppc|ppc64|ppc64abi32|s390x|sh4eb|sparc|sparc64|sparc32plus|xtensaeb)
7523   target_bigendian="yes"
7524   ;;
7525 esac
7526 target_softmmu="no"
7527 target_user_only="no"
7528 target_linux_user="no"
7529 target_bsd_user="no"
7530 case "$target" in
7531   ${target_name}-softmmu)
7532     target_softmmu="yes"
7533     ;;
7534   ${target_name}-linux-user)
7535     target_user_only="yes"
7536     target_linux_user="yes"
7537     ;;
7538   ${target_name}-bsd-user)
7539     target_user_only="yes"
7540     target_bsd_user="yes"
7541     ;;
7542   *)
7543     error_exit "Target '$target' not recognised"
7544     exit 1
7545     ;;
7546 esac
7547
7548 mkdir -p $target_dir
7549 echo "# Automatically generated by configure - do not modify" > $config_target_mak
7550
7551 bflt="no"
7552 mttcg="no"
7553 interp_prefix1=$(echo "$interp_prefix" | sed "s/%M/$target_name/g")
7554 gdb_xml_files=""
7555
7556 TARGET_ARCH="$target_name"
7557 TARGET_BASE_ARCH=""
7558 TARGET_ABI_DIR=""
7559 TARGET_SYSTBL_ABI=""
7560 TARGET_SYSTBL=""
7561
7562 case "$target_name" in
7563   i386)
7564     mttcg="yes"
7565     gdb_xml_files="i386-32bit.xml"
7566     TARGET_SYSTBL_ABI=i386
7567     TARGET_SYSTBL=syscall_32.tbl
7568   ;;
7569   x86_64)
7570     TARGET_BASE_ARCH=i386
7571     TARGET_SYSTBL_ABI=common,64
7572     TARGET_SYSTBL=syscall_64.tbl
7573     mttcg="yes"
7574     gdb_xml_files="i386-64bit.xml"
7575   ;;
7576   alpha)
7577     mttcg="yes"
7578     TARGET_SYSTBL_ABI=common
7579   ;;
7580   arm|armeb)
7581     TARGET_ARCH=arm
7582     TARGET_SYSTBL_ABI=common,oabi
7583     bflt="yes"
7584     mttcg="yes"
7585     gdb_xml_files="arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7586   ;;
7587   aarch64|aarch64_be)
7588     TARGET_ARCH=aarch64
7589     TARGET_BASE_ARCH=arm
7590     bflt="yes"
7591     mttcg="yes"
7592     gdb_xml_files="aarch64-core.xml aarch64-fpu.xml arm-core.xml arm-vfp.xml arm-vfp3.xml arm-neon.xml arm-m-profile.xml"
7593   ;;
7594   avr)
7595     gdb_xml_files="avr-cpu.xml"
7596     target_compiler=$cross_cc_avr
7597   ;;
7598   cris)
7599   ;;
7600   hppa)
7601     mttcg="yes"
7602     TARGET_SYSTBL_ABI=common,32
7603   ;;
7604   lm32)
7605   ;;
7606   m68k)
7607     bflt="yes"
7608     gdb_xml_files="cf-core.xml cf-fp.xml m68k-core.xml m68k-fp.xml"
7609     TARGET_SYSTBL_ABI=common
7610   ;;
7611   microblaze|microblazeel)
7612     TARGET_ARCH=microblaze
7613     TARGET_SYSTBL_ABI=common
7614     mttcg="yes"
7615     bflt="yes"
7616   ;;
7617   mips|mipsel)
7618     mttcg="yes"
7619     TARGET_ARCH=mips
7620     echo "TARGET_ABI_MIPSO32=y" >> $config_target_mak
7621     TARGET_SYSTBL_ABI=o32
7622     TARGET_SYSTBL=syscall_o32.tbl
7623   ;;
7624   mipsn32|mipsn32el)
7625     mttcg="yes"
7626     TARGET_ARCH=mips64
7627     TARGET_BASE_ARCH=mips
7628     echo "TARGET_ABI_MIPSN32=y" >> $config_target_mak
7629     echo "TARGET_ABI32=y" >> $config_target_mak
7630     TARGET_SYSTBL_ABI=n32
7631     TARGET_SYSTBL=syscall_n32.tbl
7632   ;;
7633   mips64|mips64el)
7634     mttcg="no"
7635     TARGET_ARCH=mips64
7636     TARGET_BASE_ARCH=mips
7637     echo "TARGET_ABI_MIPSN64=y" >> $config_target_mak
7638     TARGET_SYSTBL_ABI=n64
7639     TARGET_SYSTBL=syscall_n64.tbl
7640   ;;
7641   moxie)
7642   ;;
7643   nios2)
7644   ;;
7645   or1k)
7646     TARGET_ARCH=openrisc
7647     TARGET_BASE_ARCH=openrisc
7648   ;;
7649   ppc)
7650     gdb_xml_files="power-core.xml power-fpu.xml power-altivec.xml power-spe.xml"
7651     TARGET_SYSTBL_ABI=common,nospu,32
7652   ;;
7653   ppc64)
7654     TARGET_BASE_ARCH=ppc
7655     TARGET_ABI_DIR=ppc
7656     TARGET_SYSTBL_ABI=common,nospu,64
7657     mttcg=yes
7658     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7659   ;;
7660   ppc64le)
7661     TARGET_ARCH=ppc64
7662     TARGET_BASE_ARCH=ppc
7663     TARGET_ABI_DIR=ppc
7664     TARGET_SYSTBL_ABI=common,nospu,64
7665     mttcg=yes
7666     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7667   ;;
7668   ppc64abi32)
7669     TARGET_ARCH=ppc64
7670     TARGET_BASE_ARCH=ppc
7671     TARGET_ABI_DIR=ppc
7672     TARGET_SYSTBL_ABI=common,nospu,32
7673     echo "TARGET_ABI32=y" >> $config_target_mak
7674     gdb_xml_files="power64-core.xml power-fpu.xml power-altivec.xml power-spe.xml power-vsx.xml"
7675   ;;
7676   riscv32)
7677     TARGET_BASE_ARCH=riscv
7678     TARGET_ABI_DIR=riscv
7679     mttcg=yes
7680     gdb_xml_files="riscv-32bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-32bit-csr.xml riscv-32bit-virtual.xml"
7681   ;;
7682   riscv64)
7683     TARGET_BASE_ARCH=riscv
7684     TARGET_ABI_DIR=riscv
7685     mttcg=yes
7686     gdb_xml_files="riscv-64bit-cpu.xml riscv-32bit-fpu.xml riscv-64bit-fpu.xml riscv-64bit-csr.xml riscv-64bit-virtual.xml"
7687   ;;
7688   rx)
7689     TARGET_ARCH=rx
7690     bflt="yes"
7691     target_compiler=$cross_cc_rx
7692     gdb_xml_files="rx-core.xml"
7693   ;;
7694   sh4|sh4eb)
7695     TARGET_ARCH=sh4
7696     TARGET_SYSTBL_ABI=common
7697     bflt="yes"
7698   ;;
7699   sparc)
7700     TARGET_SYSTBL_ABI=common,32
7701   ;;
7702   sparc64)
7703     TARGET_BASE_ARCH=sparc
7704     TARGET_SYSTBL_ABI=common,64
7705   ;;
7706   sparc32plus)
7707     TARGET_ARCH=sparc64
7708     TARGET_BASE_ARCH=sparc
7709     TARGET_ABI_DIR=sparc
7710     TARGET_SYSTBL_ABI=common,32
7711     echo "TARGET_ABI32=y" >> $config_target_mak
7712   ;;
7713   s390x)
7714     TARGET_SYSTBL_ABI=common,64
7715     mttcg=yes
7716     gdb_xml_files="s390x-core64.xml s390-acr.xml s390-fpr.xml s390-vx.xml s390-cr.xml s390-virt.xml s390-gs.xml"
7717   ;;
7718   tilegx)
7719   ;;
7720   tricore)
7721   ;;
7722   unicore32)
7723   ;;
7724   xtensa|xtensaeb)
7725     TARGET_ARCH=xtensa
7726     TARGET_SYSTBL_ABI=common
7727     bflt="yes"
7728     mttcg="yes"
7729   ;;
7730   *)
7731     error_exit "Unsupported target CPU"
7732   ;;
7733 esac
7734 # TARGET_BASE_ARCH needs to be defined after TARGET_ARCH
7735 if [ "$TARGET_BASE_ARCH" = "" ]; then
7736   TARGET_BASE_ARCH=$TARGET_ARCH
7737 fi
7738 if [ "$TARGET_SYSTBL_ABI" != "" ] && [ "$TARGET_SYSTBL" = "" ]; then
7739   TARGET_SYSTBL=syscall.tbl
7740 fi
7741
7742 upper() {
7743     echo "$@"| LC_ALL=C tr '[a-z]' '[A-Z]'
7744 }
7745
7746 target_arch_name="$(upper $TARGET_ARCH)"
7747 echo "TARGET_$target_arch_name=y" >> $config_target_mak
7748 echo "TARGET_NAME=$target_name" >> $config_target_mak
7749 echo "TARGET_BASE_ARCH=$TARGET_BASE_ARCH" >> $config_target_mak
7750 if [ "$TARGET_ABI_DIR" = "" ]; then
7751   TARGET_ABI_DIR=$TARGET_ARCH
7752 fi
7753 echo "TARGET_ABI_DIR=$TARGET_ABI_DIR" >> $config_target_mak
7754 if [ "$HOST_VARIANT_DIR" != "" ]; then
7755     echo "HOST_VARIANT_DIR=$HOST_VARIANT_DIR" >> $config_target_mak
7756 fi
7757 if [ "$TARGET_SYSTBL_ABI" != "" ]; then
7758     echo "TARGET_SYSTBL_ABI=$TARGET_SYSTBL_ABI" >> $config_target_mak
7759     echo "TARGET_SYSTBL=$TARGET_SYSTBL" >> $config_target_mak
7760 fi
7761
7762 if supported_xen_target $target; then
7763     echo "CONFIG_XEN=y" >> $config_target_mak
7764     if test "$xen_pci_passthrough" = yes; then
7765         echo "CONFIG_XEN_PCI_PASSTHROUGH=y" >> "$config_target_mak"
7766     fi
7767 fi
7768 if supported_kvm_target $target; then
7769     echo "CONFIG_KVM=y" >> $config_target_mak
7770 fi
7771 if supported_hax_target $target; then
7772     echo "CONFIG_HAX=y" >> $config_target_mak
7773 fi
7774 if supported_hvf_target $target; then
7775     echo "CONFIG_HVF=y" >> $config_target_mak
7776 fi
7777 if supported_whpx_target $target; then
7778     echo "CONFIG_WHPX=y" >> $config_target_mak
7779 fi
7780 if test "$target_aligned_only" = "yes" ; then
7781   echo "TARGET_ALIGNED_ONLY=y" >> $config_target_mak
7782 fi
7783 if test "$target_bigendian" = "yes" ; then
7784   echo "TARGET_WORDS_BIGENDIAN=y" >> $config_target_mak
7785 fi
7786 if test "$target_softmmu" = "yes" ; then
7787   echo "CONFIG_SOFTMMU=y" >> $config_target_mak
7788   if test "$mttcg" = "yes" ; then
7789     echo "TARGET_SUPPORTS_MTTCG=y" >> $config_target_mak
7790   fi
7791 fi
7792 if test "$target_user_only" = "yes" ; then
7793   echo "CONFIG_USER_ONLY=y" >> $config_target_mak
7794   echo "CONFIG_QEMU_INTERP_PREFIX=\"$interp_prefix1\"" >> $config_target_mak
7795   symlink "../qemu-$target_name" "$target_dir/qemu-$target_name"
7796 else
7797   symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name"
7798 fi
7799 if test "$target_linux_user" = "yes" ; then
7800   echo "CONFIG_LINUX_USER=y" >> $config_target_mak
7801 fi
7802 list=""
7803 if test ! -z "$gdb_xml_files" ; then
7804   for x in $gdb_xml_files; do
7805     list="$list gdb-xml/$x"
7806   done
7807   echo "TARGET_XML_FILES=$list" >> $config_target_mak
7808 fi
7809
7810 if test "$target_user_only" = "yes" && test "$bflt" = "yes"; then
7811   echo "TARGET_HAS_BFLT=y" >> $config_target_mak
7812 fi
7813 if test "$target_bsd_user" = "yes" ; then
7814   echo "CONFIG_BSD_USER=y" >> $config_target_mak
7815 fi
7816
7817 done # for target in $targets
7818
7819 if [ "$fdt" = "git" ]; then
7820   subdirs="$subdirs dtc"
7821 fi
7822 if [ "$capstone" = "git" -o "$capstone" = "internal" ]; then
7823   subdirs="$subdirs capstone"
7824 fi
7825 echo "SUBDIRS=$subdirs" >> $config_host_mak
7826 if test -n "$LIBCAPSTONE"; then
7827   echo "LIBCAPSTONE=$LIBCAPSTONE" >> $config_host_mak
7828 fi
7829
7830 if test "$numa" = "yes"; then
7831   echo "CONFIG_NUMA=y" >> $config_host_mak
7832   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
7833 fi
7834
7835 if test "$ccache_cpp2" = "yes"; then
7836   echo "export CCACHE_CPP2=y" >> $config_host_mak
7837 fi
7838
7839 if test "$safe_stack" = "yes"; then
7840   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
7841 fi
7842
7843 # If we're using a separate build tree, set it up now.
7844 # DIRS are directories which we simply mkdir in the build tree;
7845 # LINKS are things to symlink back into the source tree
7846 # (these can be both files and directories).
7847 # Caution: do not add files or directories here using wildcards. This
7848 # will result in problems later if a new file matching the wildcard is
7849 # added to the source tree -- nothing will cause configure to be rerun
7850 # so the build tree will be missing the link back to the new file, and
7851 # tests might fail. Prefer to keep the relevant files in their own
7852 # directory and symlink the directory instead.
7853 # UNLINK is used to remove symlinks from older development versions
7854 # that might get into the way when doing "git update" without doing
7855 # a "make distclean" in between.
7856 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
7857 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
7858 DIRS="$DIRS docs docs/interop fsdev scsi"
7859 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
7860 DIRS="$DIRS roms/seabios"
7861 DIRS="$DIRS contrib/plugins/"
7862 LINKS="Makefile"
7863 LINKS="$LINKS tests/tcg/lm32/Makefile"
7864 LINKS="$LINKS tests/tcg/Makefile.target"
7865 LINKS="$LINKS pc-bios/optionrom/Makefile"
7866 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
7867 LINKS="$LINKS roms/seabios/Makefile"
7868 LINKS="$LINKS pc-bios/qemu-icon.bmp"
7869 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
7870 LINKS="$LINKS tests/acceptance tests/data"
7871 LINKS="$LINKS tests/qemu-iotests/check"
7872 LINKS="$LINKS python"
7873 LINKS="$LINKS contrib/plugins/Makefile "
7874 UNLINK="pc-bios/keymaps"
7875 for bios_file in \
7876     $source_path/pc-bios/*.bin \
7877     $source_path/pc-bios/*.elf \
7878     $source_path/pc-bios/*.lid \
7879     $source_path/pc-bios/*.rom \
7880     $source_path/pc-bios/*.dtb \
7881     $source_path/pc-bios/*.img \
7882     $source_path/pc-bios/openbios-* \
7883     $source_path/pc-bios/u-boot.* \
7884     $source_path/pc-bios/edk2-*.fd.bz2 \
7885     $source_path/pc-bios/palcode-*
7886 do
7887     LINKS="$LINKS pc-bios/$(basename $bios_file)"
7888 done
7889 mkdir -p $DIRS
7890 for f in $LINKS ; do
7891     if [ -e "$source_path/$f" ]; then
7892         symlink "$source_path/$f" "$f"
7893     fi
7894 done
7895 for f in $UNLINK ; do
7896     if [ -L "$f" ]; then
7897         rm -f "$f"
7898     fi
7899 done
7900
7901 (for i in $cross_cc_vars; do
7902   export $i
7903 done
7904 export target_list source_path use_containers
7905 $source_path/tests/tcg/configure.sh)
7906
7907 # temporary config to build submodules
7908 for rom in seabios; do
7909     config_mak=roms/$rom/config.mak
7910     echo "# Automatically generated by configure - do not modify" > $config_mak
7911     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
7912     echo "AS=$as" >> $config_mak
7913     echo "CCAS=$ccas" >> $config_mak
7914     echo "CC=$cc" >> $config_mak
7915     echo "BCC=bcc" >> $config_mak
7916     echo "CPP=$cpp" >> $config_mak
7917     echo "OBJCOPY=objcopy" >> $config_mak
7918     echo "IASL=$iasl" >> $config_mak
7919     echo "LD=$ld" >> $config_mak
7920     echo "RANLIB=$ranlib" >> $config_mak
7921 done
7922
7923 # set up qemu-iotests in this build directory
7924 iotests_common_env="tests/qemu-iotests/common.env"
7925
7926 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
7927 echo >> "$iotests_common_env"
7928 echo "export PYTHON='$python'" >> "$iotests_common_env"
7929
7930 if test "$skip_meson" = no; then
7931 cross="config-meson.cross.new"
7932 meson_quote() {
7933     echo "['$(echo $* | sed "s/ /','/g")']"
7934 }
7935
7936 echo "# Automatically generated by configure - do not modify" > $cross
7937 echo "[properties]" >> $cross
7938 test -z "$cxx" && echo "link_language = 'c'" >> $cross
7939 echo "[binaries]" >> $cross
7940 echo "c = $(meson_quote $cc)" >> $cross
7941 test -n "$cxx" && echo "cpp = $(meson_quote $cxx)" >> $cross
7942 echo "ar = $(meson_quote $ar)" >> $cross
7943 echo "nm = $(meson_quote $nm)" >> $cross
7944 echo "pkgconfig = $(meson_quote $pkg_config_exe)" >> $cross
7945 echo "ranlib = $(meson_quote $ranlib)" >> $cross
7946 if has $sdl2_config; then
7947   echo "sdl2-config = $(meson_quote $sdl2_config)" >> $cross
7948 fi
7949 echo "strip = $(meson_quote $strip)" >> $cross
7950 echo "windres = $(meson_quote $windres)" >> $cross
7951 if test -n "$cross_prefix"; then
7952     cross_arg="--cross-file config-meson.cross"
7953     # Hack: Meson expects an absolute path for the *build* machine
7954     # for the prefix, so add a slash in front of a Windows path that
7955     # includes a drive letter.
7956     #
7957     # See https://github.com/mesonbuild/meson/issues/7577.
7958     echo "[host_machine]" >> $cross
7959     if test "$mingw32" = "yes" ; then
7960         echo "system = 'windows'" >> $cross
7961         case $prefix in
7962             ?:*) pre_prefix=/ ;;
7963         esac
7964     fi
7965     if test "$linux" = "yes" ; then
7966         echo "system = 'linux'" >> $cross
7967     fi
7968     case "$ARCH" in
7969         i386|x86_64)
7970             echo "cpu_family = 'x86'" >> $cross
7971             ;;
7972         ppc64le)
7973             echo "cpu_family = 'ppc64'" >> $cross
7974             ;;
7975         *)
7976             echo "cpu_family = '$ARCH'" >> $cross
7977             ;;
7978     esac
7979     echo "cpu = '$cpu'" >> $cross
7980     if test "$bigendian" = "yes" ; then
7981         echo "endian = 'big'" >> $cross
7982     else
7983         echo "endian = 'little'" >> $cross
7984     fi
7985 else
7986     cross_arg="--native-file config-meson.cross"
7987 fi
7988 mv $cross config-meson.cross
7989
7990 rm -rf meson-private meson-info meson-logs
7991 NINJA=${ninja:-$PWD/ninjatool} $meson setup \
7992         --prefix "${pre_prefix}$prefix" \
7993         --libdir "${pre_prefix}$libdir" \
7994         --libexecdir "${pre_prefix}$libexecdir" \
7995         --bindir "${pre_prefix}$bindir" \
7996         --includedir "${pre_prefix}$includedir" \
7997         --datadir "${pre_prefix}$datadir" \
7998         --mandir "${pre_prefix}$mandir" \
7999         --sysconfdir "${pre_prefix}$sysconfdir" \
8000         --localstatedir "${pre_prefix}$local_statedir" \
8001         -Ddocdir="${pre_prefix}$docdir" \
8002         -Dqemu_suffix="$qemu_suffix" \
8003         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
8004         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
8005         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
8006         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
8007         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
8008         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
8009         -Dsdl=$sdl -Dsdl_image=$sdl_image \
8010         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
8011         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f\
8012         $cross_arg \
8013         "$PWD" "$source_path"
8014
8015 if test "$?" -ne 0 ; then
8016     error_exit "meson setup failed"
8017 fi
8018 touch ninjatool.stamp
8019 fi
8020
8021 if test -n "${deprecated_features}"; then
8022     echo "Warning, deprecated features enabled."
8023     echo "Please see docs/system/deprecated.rst"
8024     echo "  features: ${deprecated_features}"
8025 fi
8026
8027 # Save the configure command line for later reuse.
8028 cat <<EOD >config.status
8029 #!/bin/sh
8030 # Generated by configure.
8031 # Run this file to recreate the current configuration.
8032 # Compiler output produced by configure, useful for debugging
8033 # configure, is in config.log if it exists.
8034 EOD
8035
8036 preserve_env() {
8037     envname=$1
8038
8039     eval envval=\$$envname
8040
8041     if test -n "$envval"
8042     then
8043         echo "$envname='$envval'" >> config.status
8044         echo "export $envname" >> config.status
8045     else
8046         echo "unset $envname" >> config.status
8047     fi
8048 }
8049
8050 # Preserve various env variables that influence what
8051 # features/build target configure will detect
8052 preserve_env AR
8053 preserve_env AS
8054 preserve_env CC
8055 preserve_env CPP
8056 preserve_env CXX
8057 preserve_env INSTALL
8058 preserve_env LD
8059 preserve_env LD_LIBRARY_PATH
8060 preserve_env LIBTOOL
8061 preserve_env MAKE
8062 preserve_env NM
8063 preserve_env OBJCOPY
8064 preserve_env PATH
8065 preserve_env PKG_CONFIG
8066 preserve_env PKG_CONFIG_LIBDIR
8067 preserve_env PKG_CONFIG_PATH
8068 preserve_env PYTHON
8069 preserve_env SDL2_CONFIG
8070 preserve_env SMBD
8071 preserve_env STRIP
8072 preserve_env WINDRES
8073
8074 printf "exec" >>config.status
8075 for i in "$0" "$@"; do
8076   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
8077 done
8078 echo ' "$@"' >>config.status
8079 chmod +x config.status
8080
8081 rm -r "$TMPDIR1"