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