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="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS"
 158     CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_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 $CONFIGURE_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 $CONFIGURE_CFLAGS $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC \
 180       $LDFLAGS $CONFIGURE_LDFLAGS $QEMU_LDFLAGS $local_ldflags
 181 }
 182
 183 # symbolically link $1 to $2.  Portable version of "ln -sf".
 184 symlink() {
 185   rm -rf "$2"
 186   mkdir -p "$(dirname "$2")"
 187   ln -s "$1" "$2"
 188 }
 189
 190 # check whether a command is available to this shell (may be either an
 191 # executable or a builtin)
 192 has() {
 193     type "$1" >/dev/null 2>&1
 194 }
 195
 196 version_ge () {
 197     local_ver1=`echo $1 | tr . ' '`
 198     local_ver2=`echo $2 | tr . ' '`
 199     while true; do
 200         set x $local_ver1
 201         local_first=${2-0}
 202         # 'shift 2' if $2 is set, or 'shift' if $2 is not set
 203         shift ${2:+2}
 204         local_ver1=$*
 205         set x $local_ver2
 206         # the second argument finished, the first must be greater or equal
 207         test $# = 1 && return 0
 208         test $local_first -lt $2 && return 1
 209         test $local_first -gt $2 && return 0
 210         shift ${2:+2}
 211         local_ver2=$*
 212     done
 213 }
 214
 215 have_backend () {
 216     echo "$trace_backends" | grep "$1" >/dev/null
 217 }
 218
 219 glob() {
 220     eval test -z '"${1#'"$2"'}"'
 221 }
 222
 223 ld_has() {
 224     $ld --help 2>/dev/null | grep ".$1" >/dev/null 2>&1
 225 }
 226
 227 if printf %s\\n "$source_path" "$PWD" | grep -q "[[:space:]:]";
 228 then
 229   error_exit "main directory cannot contain spaces nor colons"
 230 fi
 231
 232 # default parameters
 233 cpu=""
 234 iasl="iasl"
 235 interp_prefix="/usr/gnemul/qemu-%M"
 236 static="no"
 237 cross_prefix=""
 238 audio_drv_list=""
 239 block_drv_rw_whitelist=""
 240 block_drv_ro_whitelist=""
 241 host_cc="cc"
 242 audio_win_int=""
 243 libs_qga=""
 244 debug_info="yes"
 245 stack_protector=""
 246 safe_stack=""
 247 use_containers="yes"
 248 gdb_bin=$(command -v "gdb-multiarch" || command -v "gdb")
 249
 250 if test -e "$source_path/.git"
 251 then
 252     git_update=yes
 253     git_submodules="ui/keycodemapdb"
 254     git_submodules="$git_submodules tests/fp/berkeley-testfloat-3"
 255     git_submodules="$git_submodules tests/fp/berkeley-softfloat-3"
 256 else
 257     git_update=no
 258     git_submodules=""
 259
 260     if ! test -f "$source_path/ui/keycodemapdb/README"
 261     then
 262         echo
 263         echo "ERROR: missing file $source_path/ui/keycodemapdb/README"
 264         echo
 265         echo "This is not a GIT checkout but module content appears to"
 266         echo "be missing. Do not use 'git archive' or GitHub download links"
 267         echo "to acquire QEMU source archives. Non-GIT builds are only"
 268         echo "supported with source archives linked from:"
 269         echo
 270         echo "  https://www.qemu.org/download/#source"
 271         echo
 272         echo "Developers working with GIT can use scripts/archive-source.sh"
 273         echo "if they need to create valid source archives."
 274         echo
 275         exit 1
 276     fi
 277 fi
 278 git="git"
 279
 280 # Don't accept a target_list environment variable.
 281 unset target_list
 282 unset target_list_exclude
 283
 284 # Default value for a variable defining feature "foo".
 285 #  * foo="no"  feature will only be used if --enable-foo arg is given
 286 #  * foo=""    feature will be searched for, and if found, will be used
 287 #              unless --disable-foo is given
 288 #  * foo="yes" this value will only be set by --enable-foo flag.
 289 #              feature will searched for,
 290 #              if not found, configure exits with error
 291 #
 292 # Always add --enable-foo and --disable-foo command line args.
 293 # Distributions want to ensure that several features are compiled in, and it
 294 # is impossible without a --enable-foo that exits if a feature is not found.
 295
 296 brlapi=""
 297 curl=""
 298 iconv="auto"
 299 curses="auto"
 300 docs="auto"
 301 fdt="auto"
 302 netmap="no"
 303 sdl="auto"
 304 sdl_image="auto"
 305 virtiofsd="auto"
 306 virtfs=""
 307 libudev="auto"
 308 mpath="auto"
 309 vnc="enabled"
 310 sparse="auto"
 311 vde=""
 312 vnc_sasl="auto"
 313 vnc_jpeg="auto"
 314 vnc_png="auto"
 315 xkbcommon="auto"
 316 xen=""
 317 xen_ctrl_version=""
 318 xen_pci_passthrough="auto"
 319 linux_aio=""
 320 linux_io_uring=""
 321 cap_ng=""
 322 attr=""
 323 libattr=""
 324 xfs=""
 325 tcg="enabled"
 326 membarrier=""
 327 vhost_net=""
 328 vhost_crypto=""
 329 vhost_scsi=""
 330 vhost_vsock=""
 331 vhost_user="no"
 332 vhost_user_blk_server="auto"
 333 vhost_user_fs=""
 334 kvm="auto"
 335 hax="auto"
 336 hvf="auto"
 337 whpx="auto"
 338 rdma=""
 339 pvrdma=""
 340 gprof="no"
 341 debug_tcg="no"
 342 debug="no"
 343 sanitizers="no"
 344 tsan="no"
 345 fortify_source=""
 346 strip_opt="yes"
 347 tcg_interpreter="no"
 348 bigendian="no"
 349 mingw32="no"
 350 gcov="no"
 351 EXESUF=""
 352 HOST_DSOSUF=".so"
 353 modules="no"
 354 module_upgrades="no"
 355 prefix="/usr/local"
 356 qemu_suffix="qemu"
 357 slirp="auto"
 358 oss_lib=""
 359 bsd="no"
 360 linux="no"
 361 solaris="no"
 362 profiler="no"
 363 cocoa="auto"
 364 softmmu="yes"
 365 linux_user="no"
 366 bsd_user="no"
 367 blobs="true"
 368 pkgversion=""
 369 pie=""
 370 qom_cast_debug="yes"
 371 trace_backends="log"
 372 trace_file="trace"
 373 spice=""
 374 rbd=""
 375 smartcard=""
 376 u2f="auto"
 377 libusb=""
 378 usb_redir=""
 379 opengl=""
 380 opengl_dmabuf="no"
 381 cpuid_h="no"
 382 avx2_opt=""
 383 capstone="auto"
 384 lzo=""
 385 snappy=""
 386 bzip2=""
 387 lzfse=""
 388 zstd=""
 389 guest_agent=""
 390 guest_agent_with_vss="no"
 391 guest_agent_ntddscsi="no"
 392 guest_agent_msi=""
 393 vss_win32_sdk=""
 394 win_sdk="no"
 395 want_tools=""
 396 libiscsi=""
 397 libnfs=""
 398 coroutine=""
 399 coroutine_pool=""
 400 debug_stack_usage="no"
 401 crypto_afalg="no"
 402 seccomp=""
 403 glusterfs=""
 404 glusterfs_xlator_opt="no"
 405 glusterfs_discard="no"
 406 glusterfs_fallocate="no"
 407 glusterfs_zerofill="no"
 408 glusterfs_ftruncate_has_stat="no"
 409 glusterfs_iocb_has_stat="no"
 410 gtk=""
 411 gtk_gl="no"
 412 tls_priority="NORMAL"
 413 gnutls=""
 414 nettle=""
 415 nettle_xts="no"
 416 gcrypt=""
 417 gcrypt_hmac="no"
 418 gcrypt_xts="no"
 419 qemu_private_xts="yes"
 420 auth_pam=""
 421 vte=""
 422 virglrenderer=""
 423 tpm=""
 424 libssh=""
 425 live_block_migration="yes"
 426 numa=""
 427 tcmalloc="no"
 428 jemalloc="no"
 429 replication="yes"
 430 bochs="yes"
 431 cloop="yes"
 432 dmg="yes"
 433 qcow1="yes"
 434 vdi="yes"
 435 vvfat="yes"
 436 qed="yes"
 437 parallels="yes"
 438 sheepdog="no"
 439 libxml2=""
 440 debug_mutex="no"
 441 libpmem=""
 442 default_devices="yes"
 443 plugins="no"
 444 fuzzing="no"
 445 rng_none="no"
 446 secret_keyring=""
 447 libdaxctl=""
 448 meson=""
 449 ninja=""
 450 skip_meson=no
 451 gettext=""
 452 fuse="auto"
 453 fuse_lseek="auto"
 454
 455 bogus_os="no"
 456 malloc_trim="auto"
 457
 458 # parse CC options first
 459 for opt do
 460   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 461   case "$opt" in
 462   --cross-prefix=*) cross_prefix="$optarg"
 463   ;;
 464   --cc=*) CC="$optarg"
 465   ;;
 466   --cxx=*) CXX="$optarg"
 467   ;;
 468   --cpu=*) cpu="$optarg"
 469   ;;
 470   --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
 471                     QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 472   ;;
 473   --extra-cxxflags=*) QEMU_CXXFLAGS="$QEMU_CXXFLAGS $optarg"
 474   ;;
 475   --extra-ldflags=*) QEMU_LDFLAGS="$QEMU_LDFLAGS $optarg"
 476                      EXTRA_LDFLAGS="$optarg"
 477   ;;
 478   --enable-debug-info) debug_info="yes"
 479   ;;
 480   --disable-debug-info) debug_info="no"
 481   ;;
 482   --cross-cc-*[!a-zA-Z0-9_-]*=*) error_exit "Passed bad --cross-cc-FOO option"
 483   ;;
 484   --cross-cc-cflags-*) cc_arch=${opt#--cross-cc-flags-}; cc_arch=${cc_arch%%=*}
 485                       eval "cross_cc_cflags_${cc_arch}=\$optarg"
 486                       cross_cc_vars="$cross_cc_vars cross_cc_cflags_${cc_arch}"
 487   ;;
 488   --cross-cc-*) cc_arch=${opt#--cross-cc-}; cc_arch=${cc_arch%%=*}
 489                 cc_archs="$cc_archs $cc_arch"
 490                 eval "cross_cc_${cc_arch}=\$optarg"
 491                 cross_cc_vars="$cross_cc_vars cross_cc_${cc_arch}"
 492   ;;
 493   esac
 494 done
 495 # OS specific
 496 # Using uname is really, really broken.  Once we have the right set of checks
 497 # we can eliminate its usage altogether.
 498
 499 # Preferred compiler:
 500 #  ${CC} (if set)
 501 #  ${cross_prefix}gcc (if cross-prefix specified)
 502 #  system compiler
 503 if test -z "${CC}${cross_prefix}"; then
 504   cc="$host_cc"
 505 else
 506   cc="${CC-${cross_prefix}gcc}"
 507 fi
 508
 509 if test -z "${CXX}${cross_prefix}"; then
 510   cxx="c++"
 511 else
 512   cxx="${CXX-${cross_prefix}g++}"
 513 fi
 514
 515 ar="${AR-${cross_prefix}ar}"
 516 as="${AS-${cross_prefix}as}"
 517 ccas="${CCAS-$cc}"
 518 cpp="${CPP-$cc -E}"
 519 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
 520 ld="${LD-${cross_prefix}ld}"
 521 ranlib="${RANLIB-${cross_prefix}ranlib}"
 522 nm="${NM-${cross_prefix}nm}"
 523 strip="${STRIP-${cross_prefix}strip}"
 524 windres="${WINDRES-${cross_prefix}windres}"
 525 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
 526 query_pkg_config() {
 527     "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
 528 }
 529 pkg_config=query_pkg_config
 530 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
 531
 532 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
 533 ARFLAGS="${ARFLAGS-rv}"
 534
 535 # default flags for all hosts
 536 # We use -fwrapv to tell the compiler that we require a C dialect where
 537 # left shift of signed integers is well defined and has the expected
 538 # 2s-complement style results. (Both clang and gcc agree that it
 539 # provides these semantics.)
 540 QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
 541 QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
 542 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
 543 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
 544
 545 # Flags that are needed during configure but later taken care of by Meson
 546 CONFIGURE_CFLAGS="-std=gnu99 -Wall"
 547 CONFIGURE_LDFLAGS=
 548
 549
 550 check_define() {
 551 cat > $TMPC <<EOF
 552 #if !defined($1)
 553 #error $1 not defined
 554 #endif
 555 int main(void) { return 0; }
 556 EOF
 557   compile_object
 558 }
 559
 560 check_include() {
 561 cat > $TMPC <<EOF
 562 #include <$1>
 563 int main(void) { return 0; }
 564 EOF
 565   compile_object
 566 }
 567
 568 write_c_skeleton() {
 569     cat > $TMPC <<EOF
 570 int main(void) { return 0; }
 571 EOF
 572 }
 573
 574 write_c_fuzzer_skeleton() {
 575     cat > $TMPC <<EOF
 576 #include <stdint.h>
 577 #include <sys/types.h>
 578 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
 579 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) { return 0; }
 580 EOF
 581 }
 582
 583 if check_define __linux__ ; then
 584   targetos="Linux"
 585 elif check_define _WIN32 ; then
 586   targetos='MINGW32'
 587 elif check_define __OpenBSD__ ; then
 588   targetos='OpenBSD'
 589 elif check_define __sun__ ; then
 590   targetos='SunOS'
 591 elif check_define __HAIKU__ ; then
 592   targetos='Haiku'
 593 elif check_define __FreeBSD__ ; then
 594   targetos='FreeBSD'
 595 elif check_define __FreeBSD_kernel__ && check_define __GLIBC__; then
 596   targetos='GNU/kFreeBSD'
 597 elif check_define __DragonFly__ ; then
 598   targetos='DragonFly'
 599 elif check_define __NetBSD__; then
 600   targetos='NetBSD'
 601 elif check_define __APPLE__; then
 602   targetos='Darwin'
 603 else
 604   # This is a fatal error, but don't report it yet, because we
 605   # might be going to just print the --help text, or it might
 606   # be the result of a missing compiler.
 607   targetos='bogus'
 608   bogus_os='yes'
 609 fi
 610
 611 # Some host OSes need non-standard checks for which CPU to use.
 612 # Note that these checks are broken for cross-compilation: if you're
 613 # cross-compiling to one of these OSes then you'll need to specify
 614 # the correct CPU with the --cpu option.
 615 case $targetos in
 616 Darwin)
 617   # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
 618   # run 64-bit userspace code.
 619   # If the user didn't specify a CPU explicitly and the kernel says this is
 620   # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
 621   if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
 622     cpu="x86_64"
 623   fi
 624   HOST_DSOSUF=".dylib"
 625   ;;
 626 SunOS)
 627   # $(uname -m) returns i86pc even on an x86_64 box, so default based on isainfo
 628   if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
 629     cpu="x86_64"
 630   fi
 631 esac
 632
 633 if test ! -z "$cpu" ; then
 634   # command line argument
 635   :
 636 elif check_define __i386__ ; then
 637   cpu="i386"
 638 elif check_define __x86_64__ ; then
 639   if check_define __ILP32__ ; then
 640     cpu="x32"
 641   else
 642     cpu="x86_64"
 643   fi
 644 elif check_define __sparc__ ; then
 645   if check_define __arch64__ ; then
 646     cpu="sparc64"
 647   else
 648     cpu="sparc"
 649   fi
 650 elif check_define _ARCH_PPC ; then
 651   if check_define _ARCH_PPC64 ; then
 652     if check_define _LITTLE_ENDIAN ; then
 653       cpu="ppc64le"
 654     else
 655       cpu="ppc64"
 656     fi
 657   else
 658     cpu="ppc"
 659   fi
 660 elif check_define __mips__ ; then
 661   cpu="mips"
 662 elif check_define __s390__ ; then
 663   if check_define __s390x__ ; then
 664     cpu="s390x"
 665   else
 666     cpu="s390"
 667   fi
 668 elif check_define __riscv ; then
 669   if check_define _LP64 ; then
 670     cpu="riscv64"
 671   else
 672     cpu="riscv32"
 673   fi
 674 elif check_define __arm__ ; then
 675   cpu="arm"
 676 elif check_define __aarch64__ ; then
 677   cpu="aarch64"
 678 else
 679   cpu=$(uname -m)
 680 fi
 681
 682 ARCH=
 683 # Normalise host CPU name and set ARCH.
 684 # Note that this case should only have supported host CPUs, not guests.
 685 case "$cpu" in
 686   ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
 687   ;;
 688   ppc64le)
 689     ARCH="ppc64"
 690   ;;
 691   i386|i486|i586|i686|i86pc|BePC)
 692     cpu="i386"
 693   ;;
 694   x86_64|amd64)
 695     cpu="x86_64"
 696   ;;
 697   armv*b|armv*l|arm)
 698     cpu="arm"
 699   ;;
 700   aarch64)
 701     cpu="aarch64"
 702   ;;
 703   mips*)
 704     cpu="mips"
 705   ;;
 706   sparc|sun4[cdmuv])
 707     cpu="sparc"
 708   ;;
 709   *)
 710     # This will result in either an error or falling back to TCI later
 711     ARCH=unknown
 712   ;;
 713 esac
 714 if test -z "$ARCH"; then
 715   ARCH="$cpu"
 716 fi
 717
 718 # OS specific
 719
 720 case $targetos in
 721 MINGW32*)
 722   mingw32="yes"
 723   audio_possible_drivers="dsound sdl"
 724   if check_include dsound.h; then
 725     audio_drv_list="dsound"
 726   else
 727     audio_drv_list=""
 728   fi
 729   supported_os="yes"
 730   pie="no"
 731 ;;
 732 GNU/kFreeBSD)
 733   bsd="yes"
 734   audio_drv_list="oss try-sdl"
 735   audio_possible_drivers="oss sdl pa"
 736 ;;
 737 FreeBSD)
 738   bsd="yes"
 739   make="${MAKE-gmake}"
 740   audio_drv_list="oss try-sdl"
 741   audio_possible_drivers="oss sdl pa"
 742   # needed for kinfo_getvmmap(3) in libutil.h
 743   netmap=""  # enable netmap autodetect
 744 ;;
 745 DragonFly)
 746   bsd="yes"
 747   make="${MAKE-gmake}"
 748   audio_drv_list="oss try-sdl"
 749   audio_possible_drivers="oss sdl pa"
 750 ;;
 751 NetBSD)
 752   bsd="yes"
 753   make="${MAKE-gmake}"
 754   audio_drv_list="oss try-sdl"
 755   audio_possible_drivers="oss sdl"
 756   oss_lib="-lossaudio"
 757 ;;
 758 OpenBSD)
 759   bsd="yes"
 760   make="${MAKE-gmake}"
 761   audio_drv_list="try-sdl"
 762   audio_possible_drivers="sdl"
 763 ;;
 764 Darwin)
 765   bsd="yes"
 766   darwin="yes"
 767   if [ "$cpu" = "x86_64" ] ; then
 768     QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
 769     QEMU_LDFLAGS="-arch x86_64 $QEMU_LDFLAGS"
 770   fi
 771   cocoa="enabled"
 772   audio_drv_list="coreaudio try-sdl"
 773   audio_possible_drivers="coreaudio sdl"
 774   QEMU_LDFLAGS="-framework CoreFoundation -framework IOKit $QEMU_LDFLAGS"
 775   # Disable attempts to use ObjectiveC features in os/object.h since they
 776   # won't work when we're compiling with gcc as a C compiler.
 777   QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
 778 ;;
 779 SunOS)
 780   solaris="yes"
 781   make="${MAKE-gmake}"
 782   smbd="${SMBD-/usr/sfw/sbin/smbd}"
 783   if test -f /usr/include/sys/soundcard.h ; then
 784     audio_drv_list="oss try-sdl"
 785   fi
 786   audio_possible_drivers="oss sdl"
 787 # needed for CMSG_ macros in sys/socket.h
 788   QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
 789 # needed for TIOCWIN* defines in termios.h
 790   QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
 791 ;;
 792 Haiku)
 793   haiku="yes"
 794   QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS -D_BSD_SOURCE $QEMU_CFLAGS"
 795 ;;
 796 Linux)
 797   audio_drv_list="try-pa oss"
 798   audio_possible_drivers="oss alsa sdl pa"
 799   linux="yes"
 800   linux_user="yes"
 801   vhost_user="yes"
 802 ;;
 803 esac
 804
 805 if [ "$bsd" = "yes" ] ; then
 806   if [ "$darwin" != "yes" ] ; then
 807     bsd_user="yes"
 808   fi
 809 fi
 810
 811 : ${make=${MAKE-make}}
 812
 813 # We prefer python 3.x. A bare 'python' is traditionally
 814 # python 2.x, but some distros have it as python 3.x, so
 815 # we check that too
 816 python=
 817 explicit_python=no
 818 for binary in "${PYTHON-python3}" python
 819 do
 820     if has "$binary"
 821     then
 822         python=$(command -v "$binary")
 823         break
 824     fi
 825 done
 826
 827
 828 # Check for ancillary tools used in testing
 829 genisoimage=
 830 for binary in genisoimage mkisofs
 831 do
 832     if has $binary
 833     then
 834         genisoimage=$(command -v "$binary")
 835         break
 836     fi
 837 done
 838
 839 : ${smbd=${SMBD-/usr/sbin/smbd}}
 840
 841 # Default objcc to clang if available, otherwise use CC
 842 if has clang; then
 843   objcc=clang
 844 else
 845   objcc="$cc"
 846 fi
 847
 848 if test "$mingw32" = "yes" ; then
 849   EXESUF=".exe"
 850   HOST_DSOSUF=".dll"
 851   # MinGW needs -mthreads for TLS and macro _MT.
 852   CONFIGURE_CFLAGS="-mthreads $CONFIGURE_CFLAGS"
 853   write_c_skeleton;
 854   prefix="/qemu"
 855   qemu_suffix=""
 856   libs_qga="-lws2_32 -lwinmm -lpowrprof -lwtsapi32 -lwininet -liphlpapi -lnetapi32 $libs_qga"
 857 fi
 858
 859 werror=""
 860
 861 for opt do
 862   optarg=$(expr "x$opt" : 'x[^=]*=\(.*\)')
 863   case "$opt" in
 864   --help|-h) show_help=yes
 865   ;;
 866   --version|-V) exec cat $source_path/VERSION
 867   ;;
 868   --prefix=*) prefix="$optarg"
 869   ;;
 870   --interp-prefix=*) interp_prefix="$optarg"
 871   ;;
 872   --cross-prefix=*)
 873   ;;
 874   --cc=*)
 875   ;;
 876   --host-cc=*) host_cc="$optarg"
 877   ;;
 878   --cxx=*)
 879   ;;
 880   --iasl=*) iasl="$optarg"
 881   ;;
 882   --objcc=*) objcc="$optarg"
 883   ;;
 884   --make=*) make="$optarg"
 885   ;;
 886   --install=*)
 887   ;;
 888   --python=*) python="$optarg" ; explicit_python=yes
 889   ;;
 890   --sphinx-build=*) sphinx_build="$optarg"
 891   ;;
 892   --skip-meson) skip_meson=yes
 893   ;;
 894   --meson=*) meson="$optarg"
 895   ;;
 896   --ninja=*) ninja="$optarg"
 897   ;;
 898   --smbd=*) smbd="$optarg"
 899   ;;
 900   --extra-cflags=*)
 901   ;;
 902   --extra-cxxflags=*)
 903   ;;
 904   --extra-ldflags=*)
 905   ;;
 906   --enable-debug-info)
 907   ;;
 908   --disable-debug-info)
 909   ;;
 910   --cross-cc-*)
 911   ;;
 912   --enable-modules)
 913       modules="yes"
 914   ;;
 915   --disable-modules)
 916       modules="no"
 917   ;;
 918   --disable-module-upgrades) module_upgrades="no"
 919   ;;
 920   --enable-module-upgrades) module_upgrades="yes"
 921   ;;
 922   --cpu=*)
 923   ;;
 924   --target-list=*) target_list="$optarg"
 925                    if test "$target_list_exclude"; then
 926                        error_exit "Can't mix --target-list with --target-list-exclude"
 927                    fi
 928   ;;
 929   --target-list-exclude=*) target_list_exclude="$optarg"
 930                    if test "$target_list"; then
 931                        error_exit "Can't mix --target-list-exclude with --target-list"
 932                    fi
 933   ;;
 934   --enable-trace-backends=*) trace_backends="$optarg"
 935   ;;
 936   # XXX: backwards compatibility
 937   --enable-trace-backend=*) trace_backends="$optarg"
 938   ;;
 939   --with-trace-file=*) trace_file="$optarg"
 940   ;;
 941   --with-default-devices) default_devices="yes"
 942   ;;
 943   --without-default-devices) default_devices="no"
 944   ;;
 945   --enable-gprof) gprof="yes"
 946   ;;
 947   --enable-gcov) gcov="yes"
 948   ;;
 949   --static)
 950     static="yes"
 951     QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
 952   ;;
 953   --mandir=*) mandir="$optarg"
 954   ;;
 955   --bindir=*) bindir="$optarg"
 956   ;;
 957   --libdir=*) libdir="$optarg"
 958   ;;
 959   --libexecdir=*) libexecdir="$optarg"
 960   ;;
 961   --includedir=*) includedir="$optarg"
 962   ;;
 963   --datadir=*) datadir="$optarg"
 964   ;;
 965   --with-suffix=*) qemu_suffix="$optarg"
 966   ;;
 967   --docdir=*) docdir="$optarg"
 968   ;;
 969   --localedir=*) localedir="$optarg"
 970   ;;
 971   --sysconfdir=*) sysconfdir="$optarg"
 972   ;;
 973   --localstatedir=*) local_statedir="$optarg"
 974   ;;
 975   --firmwarepath=*) firmwarepath="$optarg"
 976   ;;
 977   --host=*|--build=*|\
 978   --disable-dependency-tracking|\
 979   --sbindir=*|--sharedstatedir=*|\
 980   --oldincludedir=*|--datarootdir=*|--infodir=*|\
 981   --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
 982     # These switches are silently ignored, for compatibility with
 983     # autoconf-generated configure scripts. This allows QEMU's
 984     # configure to be used by RPM and similar macros that set
 985     # lots of directory switches by default.
 986   ;;
 987   --disable-sdl) sdl="disabled"
 988   ;;
 989   --enable-sdl) sdl="enabled"
 990   ;;
 991   --disable-sdl-image) sdl_image="disabled"
 992   ;;
 993   --enable-sdl-image) sdl_image="enabled"
 994   ;;
 995   --disable-qom-cast-debug) qom_cast_debug="no"
 996   ;;
 997   --enable-qom-cast-debug) qom_cast_debug="yes"
 998   ;;
 999   --disable-virtfs) virtfs="no"
1000   ;;
1001   --enable-virtfs) virtfs="yes"
1002   ;;
1003   --disable-libudev) libudev="disabled"
1004   ;;
1005   --enable-libudev) libudev="enabled"
1006   ;;
1007   --disable-virtiofsd) virtiofsd="disabled"
1008   ;;
1009   --enable-virtiofsd) virtiofsd="enabled"
1010   ;;
1011   --disable-mpath) mpath="disabled"
1012   ;;
1013   --enable-mpath) mpath="enabled"
1014   ;;
1015   --disable-vnc) vnc="disabled"
1016   ;;
1017   --enable-vnc) vnc="enabled"
1018   ;;
1019   --disable-gettext) gettext="false"
1020   ;;
1021   --enable-gettext) gettext="true"
1022   ;;
1023   --oss-lib=*) oss_lib="$optarg"
1024   ;;
1025   --audio-drv-list=*) audio_drv_list="$optarg"
1026   ;;
1027   --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1028   ;;
1029   --block-drv-ro-whitelist=*) block_drv_ro_whitelist=$(echo "$optarg" | sed -e 's/,/ /g')
1030   ;;
1031   --enable-debug-tcg) debug_tcg="yes"
1032   ;;
1033   --disable-debug-tcg) debug_tcg="no"
1034   ;;
1035   --enable-debug)
1036       # Enable debugging options that aren't excessively noisy
1037       debug_tcg="yes"
1038       debug_mutex="yes"
1039       debug="yes"
1040       strip_opt="no"
1041       fortify_source="no"
1042   ;;
1043   --enable-sanitizers) sanitizers="yes"
1044   ;;
1045   --disable-sanitizers) sanitizers="no"
1046   ;;
1047   --enable-tsan) tsan="yes"
1048   ;;
1049   --disable-tsan) tsan="no"
1050   ;;
1051   --enable-sparse) sparse="enabled"
1052   ;;
1053   --disable-sparse) sparse="disabled"
1054   ;;
1055   --disable-strip) strip_opt="no"
1056   ;;
1057   --disable-vnc-sasl) vnc_sasl="disabled"
1058   ;;
1059   --enable-vnc-sasl) vnc_sasl="enabled"
1060   ;;
1061   --disable-vnc-jpeg) vnc_jpeg="disabled"
1062   ;;
1063   --enable-vnc-jpeg) vnc_jpeg="enabled"
1064   ;;
1065   --disable-vnc-png) vnc_png="disabled"
1066   ;;
1067   --enable-vnc-png) vnc_png="enabled"
1068   ;;
1069   --disable-slirp) slirp="disabled"
1070   ;;
1071   --enable-slirp=git) slirp="internal"
1072   ;;
1073   --enable-slirp=system) slirp="system"
1074   ;;
1075   --disable-vde) vde="no"
1076   ;;
1077   --enable-vde) vde="yes"
1078   ;;
1079   --disable-netmap) netmap="no"
1080   ;;
1081   --enable-netmap) netmap="yes"
1082   ;;
1083   --disable-xen) xen="disabled"
1084   ;;
1085   --enable-xen) xen="enabled"
1086   ;;
1087   --disable-xen-pci-passthrough) xen_pci_passthrough="disabled"
1088   ;;
1089   --enable-xen-pci-passthrough) xen_pci_passthrough="enabled"
1090   ;;
1091   --disable-brlapi) brlapi="no"
1092   ;;
1093   --enable-brlapi) brlapi="yes"
1094   ;;
1095   --disable-kvm) kvm="disabled"
1096   ;;
1097   --enable-kvm) kvm="enabled"
1098   ;;
1099   --disable-hax) hax="disabled"
1100   ;;
1101   --enable-hax) hax="enabled"
1102   ;;
1103   --disable-hvf) hvf="disabled"
1104   ;;
1105   --enable-hvf) hvf="enabled"
1106   ;;
1107   --disable-whpx) whpx="disabled"
1108   ;;
1109   --enable-whpx) whpx="enabled"
1110   ;;
1111   --disable-tcg-interpreter) tcg_interpreter="no"
1112   ;;
1113   --enable-tcg-interpreter) tcg_interpreter="yes"
1114   ;;
1115   --disable-cap-ng)  cap_ng="no"
1116   ;;
1117   --enable-cap-ng) cap_ng="yes"
1118   ;;
1119   --disable-tcg) tcg="disabled"
1120   ;;
1121   --enable-tcg) tcg="enabled"
1122   ;;
1123   --disable-malloc-trim) malloc_trim="disabled"
1124   ;;
1125   --enable-malloc-trim) malloc_trim="enabled"
1126   ;;
1127   --disable-spice) spice="no"
1128   ;;
1129   --enable-spice) spice="yes"
1130   ;;
1131   --disable-libiscsi) libiscsi="no"
1132   ;;
1133   --enable-libiscsi) libiscsi="yes"
1134   ;;
1135   --disable-libnfs) libnfs="no"
1136   ;;
1137   --enable-libnfs) libnfs="yes"
1138   ;;
1139   --enable-profiler) profiler="yes"
1140   ;;
1141   --disable-cocoa) cocoa="disabled"
1142   ;;
1143   --enable-cocoa)
1144       cocoa="enabled" ;
1145       audio_drv_list="coreaudio $(echo $audio_drv_list | sed s,coreaudio,,g)"
1146   ;;
1147   --disable-system) softmmu="no"
1148   ;;
1149   --enable-system) softmmu="yes"
1150   ;;
1151   --disable-user)
1152       linux_user="no" ;
1153       bsd_user="no" ;
1154   ;;
1155   --enable-user) ;;
1156   --disable-linux-user) linux_user="no"
1157   ;;
1158   --enable-linux-user) linux_user="yes"
1159   ;;
1160   --disable-bsd-user) bsd_user="no"
1161   ;;
1162   --enable-bsd-user) bsd_user="yes"
1163   ;;
1164   --enable-pie) pie="yes"
1165   ;;
1166   --disable-pie) pie="no"
1167   ;;
1168   --enable-werror) werror="yes"
1169   ;;
1170   --disable-werror) werror="no"
1171   ;;
1172   --enable-stack-protector) stack_protector="yes"
1173   ;;
1174   --disable-stack-protector) stack_protector="no"
1175   ;;
1176   --enable-safe-stack) safe_stack="yes"
1177   ;;
1178   --disable-safe-stack) safe_stack="no"
1179   ;;
1180   --disable-curses) curses="disabled"
1181   ;;
1182   --enable-curses) curses="enabled"
1183   ;;
1184   --disable-iconv) iconv="disabled"
1185   ;;
1186   --enable-iconv) iconv="enabled"
1187   ;;
1188   --disable-curl) curl="no"
1189   ;;
1190   --enable-curl) curl="yes"
1191   ;;
1192   --disable-fdt) fdt="disabled"
1193   ;;
1194   --enable-fdt) fdt="enabled"
1195   ;;
1196   --enable-fdt=git) fdt="internal"
1197   ;;
1198   --enable-fdt=system) fdt="system"
1199   ;;
1200   --disable-linux-aio) linux_aio="no"
1201   ;;
1202   --enable-linux-aio) linux_aio="yes"
1203   ;;
1204   --disable-linux-io-uring) linux_io_uring="no"
1205   ;;
1206   --enable-linux-io-uring) linux_io_uring="yes"
1207   ;;
1208   --disable-attr) attr="no"
1209   ;;
1210   --enable-attr) attr="yes"
1211   ;;
1212   --disable-membarrier) membarrier="no"
1213   ;;
1214   --enable-membarrier) membarrier="yes"
1215   ;;
1216   --disable-blobs) blobs="false"
1217   ;;
1218   --with-pkgversion=*) pkgversion="$optarg"
1219   ;;
1220   --with-coroutine=*) coroutine="$optarg"
1221   ;;
1222   --disable-coroutine-pool) coroutine_pool="no"
1223   ;;
1224   --enable-coroutine-pool) coroutine_pool="yes"
1225   ;;
1226   --enable-debug-stack-usage) debug_stack_usage="yes"
1227   ;;
1228   --enable-crypto-afalg) crypto_afalg="yes"
1229   ;;
1230   --disable-crypto-afalg) crypto_afalg="no"
1231   ;;
1232   --disable-docs) docs="disabled"
1233   ;;
1234   --enable-docs) docs="enabled"
1235   ;;
1236   --disable-vhost-net) vhost_net="no"
1237   ;;
1238   --enable-vhost-net) vhost_net="yes"
1239   ;;
1240   --disable-vhost-crypto) vhost_crypto="no"
1241   ;;
1242   --enable-vhost-crypto) vhost_crypto="yes"
1243   ;;
1244   --disable-vhost-scsi) vhost_scsi="no"
1245   ;;
1246   --enable-vhost-scsi) vhost_scsi="yes"
1247   ;;
1248   --disable-vhost-vsock) vhost_vsock="no"
1249   ;;
1250   --enable-vhost-vsock) vhost_vsock="yes"
1251   ;;
1252   --disable-vhost-user-blk-server) vhost_user_blk_server="disabled"
1253   ;;
1254   --enable-vhost-user-blk-server) vhost_user_blk_server="enabled"
1255   ;;
1256   --disable-vhost-user-fs) vhost_user_fs="no"
1257   ;;
1258   --enable-vhost-user-fs) vhost_user_fs="yes"
1259   ;;
1260   --disable-opengl) opengl="no"
1261   ;;
1262   --enable-opengl) opengl="yes"
1263   ;;
1264   --disable-rbd) rbd="no"
1265   ;;
1266   --enable-rbd) rbd="yes"
1267   ;;
1268   --disable-xfsctl) xfs="no"
1269   ;;
1270   --enable-xfsctl) xfs="yes"
1271   ;;
1272   --disable-smartcard) smartcard="no"
1273   ;;
1274   --enable-smartcard) smartcard="yes"
1275   ;;
1276   --disable-u2f) u2f="disabled"
1277   ;;
1278   --enable-u2f) u2f="enabled"
1279   ;;
1280   --disable-libusb) libusb="no"
1281   ;;
1282   --enable-libusb) libusb="yes"
1283   ;;
1284   --disable-usb-redir) usb_redir="no"
1285   ;;
1286   --enable-usb-redir) usb_redir="yes"
1287   ;;
1288   --disable-zlib-test)
1289   ;;
1290   --disable-lzo) lzo="no"
1291   ;;
1292   --enable-lzo) lzo="yes"
1293   ;;
1294   --disable-snappy) snappy="no"
1295   ;;
1296   --enable-snappy) snappy="yes"
1297   ;;
1298   --disable-bzip2) bzip2="no"
1299   ;;
1300   --enable-bzip2) bzip2="yes"
1301   ;;
1302   --enable-lzfse) lzfse="yes"
1303   ;;
1304   --disable-lzfse) lzfse="no"
1305   ;;
1306   --disable-zstd) zstd="no"
1307   ;;
1308   --enable-zstd) zstd="yes"
1309   ;;
1310   --enable-guest-agent) guest_agent="yes"
1311   ;;
1312   --disable-guest-agent) guest_agent="no"
1313   ;;
1314   --enable-guest-agent-msi) guest_agent_msi="yes"
1315   ;;
1316   --disable-guest-agent-msi) guest_agent_msi="no"
1317   ;;
1318   --with-vss-sdk) vss_win32_sdk=""
1319   ;;
1320   --with-vss-sdk=*) vss_win32_sdk="$optarg"
1321   ;;
1322   --without-vss-sdk) vss_win32_sdk="no"
1323   ;;
1324   --with-win-sdk) win_sdk=""
1325   ;;
1326   --with-win-sdk=*) win_sdk="$optarg"
1327   ;;
1328   --without-win-sdk) win_sdk="no"
1329   ;;
1330   --enable-tools) want_tools="yes"
1331   ;;
1332   --disable-tools) want_tools="no"
1333   ;;
1334   --enable-seccomp) seccomp="yes"
1335   ;;
1336   --disable-seccomp) seccomp="no"
1337   ;;
1338   --disable-glusterfs) glusterfs="no"
1339   ;;
1340   --disable-avx2) avx2_opt="no"
1341   ;;
1342   --enable-avx2) avx2_opt="yes"
1343   ;;
1344   --disable-avx512f) avx512f_opt="no"
1345   ;;
1346   --enable-avx512f) avx512f_opt="yes"
1347   ;;
1348
1349   --enable-glusterfs) glusterfs="yes"
1350   ;;
1351   --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1352       echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1353   ;;
1354   --enable-vhdx|--disable-vhdx)
1355       echo "$0: $opt is obsolete, VHDX driver is always built" >&2
1356   ;;
1357   --enable-uuid|--disable-uuid)
1358       echo "$0: $opt is obsolete, UUID support is always built" >&2
1359   ;;
1360   --disable-gtk) gtk="no"
1361   ;;
1362   --enable-gtk) gtk="yes"
1363   ;;
1364   --tls-priority=*) tls_priority="$optarg"
1365   ;;
1366   --disable-gnutls) gnutls="no"
1367   ;;
1368   --enable-gnutls) gnutls="yes"
1369   ;;
1370   --disable-nettle) nettle="no"
1371   ;;
1372   --enable-nettle) nettle="yes"
1373   ;;
1374   --disable-gcrypt) gcrypt="no"
1375   ;;
1376   --enable-gcrypt) gcrypt="yes"
1377   ;;
1378   --disable-auth-pam) auth_pam="no"
1379   ;;
1380   --enable-auth-pam) auth_pam="yes"
1381   ;;
1382   --enable-rdma) rdma="yes"
1383   ;;
1384   --disable-rdma) rdma="no"
1385   ;;
1386   --enable-pvrdma) pvrdma="yes"
1387   ;;
1388   --disable-pvrdma) pvrdma="no"
1389   ;;
1390   --disable-vte) vte="no"
1391   ;;
1392   --enable-vte) vte="yes"
1393   ;;
1394   --disable-virglrenderer) virglrenderer="no"
1395   ;;
1396   --enable-virglrenderer) virglrenderer="yes"
1397   ;;
1398   --disable-tpm) tpm="no"
1399   ;;
1400   --enable-tpm) tpm="yes"
1401   ;;
1402   --disable-libssh) libssh="no"
1403   ;;
1404   --enable-libssh) libssh="yes"
1405   ;;
1406   --disable-live-block-migration) live_block_migration="no"
1407   ;;
1408   --enable-live-block-migration) live_block_migration="yes"
1409   ;;
1410   --disable-numa) numa="no"
1411   ;;
1412   --enable-numa) numa="yes"
1413   ;;
1414   --disable-libxml2) libxml2="no"
1415   ;;
1416   --enable-libxml2) libxml2="yes"
1417   ;;
1418   --disable-tcmalloc) tcmalloc="no"
1419   ;;
1420   --enable-tcmalloc) tcmalloc="yes"
1421   ;;
1422   --disable-jemalloc) jemalloc="no"
1423   ;;
1424   --enable-jemalloc) jemalloc="yes"
1425   ;;
1426   --disable-replication) replication="no"
1427   ;;
1428   --enable-replication) replication="yes"
1429   ;;
1430   --disable-bochs) bochs="no"
1431   ;;
1432   --enable-bochs) bochs="yes"
1433   ;;
1434   --disable-cloop) cloop="no"
1435   ;;
1436   --enable-cloop) cloop="yes"
1437   ;;
1438   --disable-dmg) dmg="no"
1439   ;;
1440   --enable-dmg) dmg="yes"
1441   ;;
1442   --disable-qcow1) qcow1="no"
1443   ;;
1444   --enable-qcow1) qcow1="yes"
1445   ;;
1446   --disable-vdi) vdi="no"
1447   ;;
1448   --enable-vdi) vdi="yes"
1449   ;;
1450   --disable-vvfat) vvfat="no"
1451   ;;
1452   --enable-vvfat) vvfat="yes"
1453   ;;
1454   --disable-qed) qed="no"
1455   ;;
1456   --enable-qed) qed="yes"
1457   ;;
1458   --disable-parallels) parallels="no"
1459   ;;
1460   --enable-parallels) parallels="yes"
1461   ;;
1462   --disable-sheepdog) sheepdog="no"
1463   ;;
1464   --enable-sheepdog) sheepdog="yes"
1465   ;;
1466   --disable-vhost-user) vhost_user="no"
1467   ;;
1468   --enable-vhost-user) vhost_user="yes"
1469   ;;
1470   --disable-vhost-vdpa) vhost_vdpa="no"
1471   ;;
1472   --enable-vhost-vdpa) vhost_vdpa="yes"
1473   ;;
1474   --disable-vhost-kernel) vhost_kernel="no"
1475   ;;
1476   --enable-vhost-kernel) vhost_kernel="yes"
1477   ;;
1478   --disable-capstone) capstone="disabled"
1479   ;;
1480   --enable-capstone) capstone="enabled"
1481   ;;
1482   --enable-capstone=git) capstone="internal"
1483   ;;
1484   --enable-capstone=system) capstone="system"
1485   ;;
1486   --with-git=*) git="$optarg"
1487   ;;
1488   --enable-git-update) git_update=yes
1489   ;;
1490   --disable-git-update) git_update=no
1491   ;;
1492   --enable-debug-mutex) debug_mutex=yes
1493   ;;
1494   --disable-debug-mutex) debug_mutex=no
1495   ;;
1496   --enable-libpmem) libpmem=yes
1497   ;;
1498   --disable-libpmem) libpmem=no
1499   ;;
1500   --enable-xkbcommon) xkbcommon="enabled"
1501   ;;
1502   --disable-xkbcommon) xkbcommon="disabled"
1503   ;;
1504   --enable-plugins) plugins="yes"
1505   ;;
1506   --disable-plugins) plugins="no"
1507   ;;
1508   --enable-containers) use_containers="yes"
1509   ;;
1510   --disable-containers) use_containers="no"
1511   ;;
1512   --enable-fuzzing) fuzzing=yes
1513   ;;
1514   --disable-fuzzing) fuzzing=no
1515   ;;
1516   --gdb=*) gdb_bin="$optarg"
1517   ;;
1518   --enable-rng-none) rng_none=yes
1519   ;;
1520   --disable-rng-none) rng_none=no
1521   ;;
1522   --enable-keyring) secret_keyring="yes"
1523   ;;
1524   --disable-keyring) secret_keyring="no"
1525   ;;
1526   --enable-libdaxctl) libdaxctl=yes
1527   ;;
1528   --disable-libdaxctl) libdaxctl=no
1529   ;;
1530   --enable-fuse) fuse="enabled"
1531   ;;
1532   --disable-fuse) fuse="disabled"
1533   ;;
1534   --enable-fuse-lseek) fuse_lseek="enabled"
1535   ;;
1536   --disable-fuse-lseek) fuse_lseek="disabled"
1537   ;;
1538   *)
1539       echo "ERROR: unknown option $opt"
1540       echo "Try '$0 --help' for more information"
1541       exit 1
1542   ;;
1543   esac
1544 done
1545
1546 libdir="${libdir:-$prefix/lib}"
1547 libexecdir="${libexecdir:-$prefix/libexec}"
1548 includedir="${includedir:-$prefix/include}"
1549
1550 if test "$mingw32" = "yes" ; then
1551     mandir="$prefix"
1552     datadir="$prefix"
1553     docdir="$prefix"
1554     bindir="$prefix"
1555     sysconfdir="$prefix"
1556     local_statedir="$prefix"
1557 else
1558     mandir="${mandir:-$prefix/share/man}"
1559     datadir="${datadir:-$prefix/share}"
1560     docdir="${docdir:-$prefix/share/doc}"
1561     bindir="${bindir:-$prefix/bin}"
1562     sysconfdir="${sysconfdir:-$prefix/etc}"
1563     local_statedir="${local_statedir:-$prefix/var}"
1564 fi
1565 firmwarepath="${firmwarepath:-$datadir/qemu-firmware}"
1566 localedir="${localedir:-$datadir/locale}"
1567
1568 case "$cpu" in
1569     ppc)
1570            CPU_CFLAGS="-m32"
1571            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1572            ;;
1573     ppc64)
1574            CPU_CFLAGS="-m64"
1575            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1576            ;;
1577     sparc)
1578            CPU_CFLAGS="-m32 -mv8plus -mcpu=ultrasparc"
1579            QEMU_LDFLAGS="-m32 -mv8plus $QEMU_LDFLAGS"
1580            ;;
1581     sparc64)
1582            CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1583            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1584            ;;
1585     s390)
1586            CPU_CFLAGS="-m31"
1587            QEMU_LDFLAGS="-m31 $QEMU_LDFLAGS"
1588            ;;
1589     s390x)
1590            CPU_CFLAGS="-m64"
1591            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1592            ;;
1593     i386)
1594            CPU_CFLAGS="-m32"
1595            QEMU_LDFLAGS="-m32 $QEMU_LDFLAGS"
1596            ;;
1597     x86_64)
1598            # ??? Only extremely old AMD cpus do not have cmpxchg16b.
1599            # If we truly care, we should simply detect this case at
1600            # runtime and generate the fallback to serial emulation.
1601            CPU_CFLAGS="-m64 -mcx16"
1602            QEMU_LDFLAGS="-m64 $QEMU_LDFLAGS"
1603            ;;
1604     x32)
1605            CPU_CFLAGS="-mx32"
1606            QEMU_LDFLAGS="-mx32 $QEMU_LDFLAGS"
1607            ;;
1608     # No special flags required for other host CPUs
1609 esac
1610
1611 eval "cross_cc_${cpu}=\$host_cc"
1612 cross_cc_vars="$cross_cc_vars cross_cc_${cpu}"
1613 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1614
1615 # For user-mode emulation the host arch has to be one we explicitly
1616 # support, even if we're using TCI.
1617 if [ "$ARCH" = "unknown" ]; then
1618   bsd_user="no"
1619   linux_user="no"
1620 fi
1621
1622 default_target_list=""
1623 deprecated_targets_list=ppc64abi32-linux-user,tilegx-linux-user,lm32-softmmu,unicore32-softmmu
1624 deprecated_features=""
1625 mak_wilds=""
1626
1627 if [ "$softmmu" = "yes" ]; then
1628     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-softmmu.mak"
1629 fi
1630 if [ "$linux_user" = "yes" ]; then
1631     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-linux-user.mak"
1632 fi
1633 if [ "$bsd_user" = "yes" ]; then
1634     mak_wilds="${mak_wilds} $source_path/default-configs/targets/*-bsd-user.mak"
1635 fi
1636
1637 # If the user doesn't explicitly specify a deprecated target we will
1638 # skip it.
1639 if test -z "$target_list"; then
1640     if test -z "$target_list_exclude"; then
1641         target_list_exclude="$deprecated_targets_list"
1642     else
1643         target_list_exclude="$target_list_exclude,$deprecated_targets_list"
1644     fi
1645 fi
1646
1647 for config in $mak_wilds; do
1648     target="$(basename "$config" .mak)"
1649     if echo "$target_list_exclude" | grep -vq "$target"; then
1650         default_target_list="${default_target_list} $target"
1651     fi
1652 done
1653
1654 # Enumerate public trace backends for --help output
1655 trace_backend_list=$(echo $(grep -le '^PUBLIC = True$' "$source_path"/scripts/tracetool/backend/*.py | sed -e 's/^.*\/\(.*\)\.py$/\1/'))
1656
1657 if test x"$show_help" = x"yes" ; then
1658 cat << EOF
1659
1660 Usage: configure [options]
1661 Options: [defaults in brackets after descriptions]
1662
1663 Standard options:
1664   --help                   print this message
1665   --prefix=PREFIX          install in PREFIX [$prefix]
1666   --interp-prefix=PREFIX   where to find shared libraries, etc.
1667                            use %M for cpu name [$interp_prefix]
1668   --target-list=LIST       set target list (default: build all non-deprecated)
1669 $(echo Available targets: $default_target_list | \
1670   fold -s -w 53 | sed -e 's/^/                           /')
1671 $(echo Deprecated targets: $deprecated_targets_list | \
1672   fold -s -w 53 | sed -e 's/^/                           /')
1673   --target-list-exclude=LIST exclude a set of targets from the default target-list
1674
1675 Advanced options (experts only):
1676   --cross-prefix=PREFIX    use PREFIX for compile tools [$cross_prefix]
1677   --cc=CC                  use C compiler CC [$cc]
1678   --iasl=IASL              use ACPI compiler IASL [$iasl]
1679   --host-cc=CC             use C compiler CC [$host_cc] for code run at
1680                            build time
1681   --cxx=CXX                use C++ compiler CXX [$cxx]
1682   --objcc=OBJCC            use Objective-C compiler OBJCC [$objcc]
1683   --extra-cflags=CFLAGS    append extra C compiler flags QEMU_CFLAGS
1684   --extra-cxxflags=CXXFLAGS append extra C++ compiler flags QEMU_CXXFLAGS
1685   --extra-ldflags=LDFLAGS  append extra linker flags LDFLAGS
1686   --cross-cc-ARCH=CC       use compiler when building ARCH guest test cases
1687   --cross-cc-flags-ARCH=   use compiler flags when building ARCH guest tests
1688   --make=MAKE              use specified make [$make]
1689   --python=PYTHON          use specified python [$python]
1690   --sphinx-build=SPHINX    use specified sphinx-build [$sphinx_build]
1691   --meson=MESON            use specified meson [$meson]
1692   --ninja=NINJA            use specified ninja [$ninja]
1693   --smbd=SMBD              use specified smbd [$smbd]
1694   --with-git=GIT           use specified git [$git]
1695   --static                 enable static build [$static]
1696   --mandir=PATH            install man pages in PATH
1697   --datadir=PATH           install firmware in PATH/$qemu_suffix
1698   --localedir=PATH         install translation in PATH/$qemu_suffix
1699   --docdir=PATH            install documentation in PATH/$qemu_suffix
1700   --bindir=PATH            install binaries in PATH
1701   --libdir=PATH            install libraries in PATH
1702   --libexecdir=PATH        install helper binaries in PATH
1703   --sysconfdir=PATH        install config in PATH/$qemu_suffix
1704   --localstatedir=PATH     install local state in PATH (set at runtime on win32)
1705   --firmwarepath=PATH      search PATH for firmware files
1706   --efi-aarch64=PATH       PATH of efi file to use for aarch64 VMs.
1707   --with-suffix=SUFFIX     suffix for QEMU data inside datadir/libdir/sysconfdir/docdir [$qemu_suffix]
1708   --with-pkgversion=VERS   use specified string as sub-version of the package
1709   --enable-debug           enable common debug build options
1710   --enable-sanitizers      enable default sanitizers
1711   --enable-tsan            enable thread sanitizer
1712   --disable-strip          disable stripping binaries
1713   --disable-werror         disable compilation abort on warning
1714   --disable-stack-protector disable compiler-provided stack protection
1715   --audio-drv-list=LIST    set audio drivers list:
1716                            Available drivers: $audio_possible_drivers
1717   --block-drv-whitelist=L  Same as --block-drv-rw-whitelist=L
1718   --block-drv-rw-whitelist=L
1719                            set block driver read-write whitelist
1720                            (affects only QEMU, not qemu-img)
1721   --block-drv-ro-whitelist=L
1722                            set block driver read-only whitelist
1723                            (affects only QEMU, not qemu-img)
1724   --enable-trace-backends=B Set trace backend
1725                            Available backends: $trace_backend_list
1726   --with-trace-file=NAME   Full PATH,NAME of file to store traces
1727                            Default:trace-<pid>
1728   --disable-slirp          disable SLIRP userspace network connectivity
1729   --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1730   --enable-malloc-trim     enable libc malloc_trim() for memory optimization
1731   --oss-lib                path to OSS library
1732   --cpu=CPU                Build for host CPU [$cpu]
1733   --with-coroutine=BACKEND coroutine backend. Supported options:
1734                            ucontext, sigaltstack, windows
1735   --enable-gcov            enable test coverage analysis with gcov
1736   --disable-blobs          disable installing provided firmware blobs
1737   --with-vss-sdk=SDK-path  enable Windows VSS support in QEMU Guest Agent
1738   --with-win-sdk=SDK-path  path to Windows Platform SDK (to build VSS .tlb)
1739   --tls-priority           default TLS protocol/cipher priority string
1740   --enable-gprof           QEMU profiling with gprof
1741   --enable-profiler        profiler support
1742   --enable-debug-stack-usage
1743                            track the maximum stack usage of stacks created by qemu_alloc_stack
1744   --enable-plugins
1745                            enable plugins via shared library loading
1746   --disable-containers     don't use containers for cross-building
1747   --gdb=GDB-path           gdb to use for gdbstub tests [$gdb_bin]
1748
1749 Optional features, enabled with --enable-FEATURE and
1750 disabled with --disable-FEATURE, default is enabled if available:
1751
1752   system          all system emulation targets
1753   user            supported user emulation targets
1754   linux-user      all linux usermode emulation targets
1755   bsd-user        all BSD usermode emulation targets
1756   docs            build documentation
1757   guest-agent     build the QEMU Guest Agent
1758   guest-agent-msi build guest agent Windows MSI installation package
1759   pie             Position Independent Executables
1760   modules         modules support (non-Windows)
1761   module-upgrades try to load modules from alternate paths for upgrades
1762   debug-tcg       TCG debugging (default is disabled)
1763   debug-info      debugging information
1764   sparse          sparse checker
1765   safe-stack      SafeStack Stack Smash Protection. Depends on
1766                   clang/llvm >= 3.7 and requires coroutine backend ucontext.
1767
1768   gnutls          GNUTLS cryptography support
1769   nettle          nettle cryptography support
1770   gcrypt          libgcrypt cryptography support
1771   auth-pam        PAM access control
1772   sdl             SDL UI
1773   sdl-image       SDL Image support for icons
1774   gtk             gtk UI
1775   vte             vte support for the gtk UI
1776   curses          curses UI
1777   iconv           font glyph conversion support
1778   vnc             VNC UI support
1779   vnc-sasl        SASL encryption for VNC server
1780   vnc-jpeg        JPEG lossy compression for VNC server
1781   vnc-png         PNG compression for VNC server
1782   cocoa           Cocoa UI (Mac OS X only)
1783   virtfs          VirtFS
1784   virtiofsd       build virtiofs daemon (virtiofsd)
1785   libudev         Use libudev to enumerate host devices
1786   mpath           Multipath persistent reservation passthrough
1787   xen             xen backend driver support
1788   xen-pci-passthrough    PCI passthrough support for Xen
1789   brlapi          BrlAPI (Braile)
1790   curl            curl connectivity
1791   membarrier      membarrier system call (for Linux 4.14+ or Windows)
1792   fdt             fdt device tree
1793   kvm             KVM acceleration support
1794   hax             HAX acceleration support
1795   hvf             Hypervisor.framework acceleration support
1796   whpx            Windows Hypervisor Platform acceleration support
1797   rdma            Enable RDMA-based migration
1798   pvrdma          Enable PVRDMA support
1799   vde             support for vde network
1800   netmap          support for netmap network
1801   linux-aio       Linux AIO support
1802   linux-io-uring  Linux io_uring support
1803   cap-ng          libcap-ng support
1804   attr            attr and xattr support
1805   vhost-net       vhost-net kernel acceleration support
1806   vhost-vsock     virtio sockets device support
1807   vhost-scsi      vhost-scsi kernel target support
1808   vhost-crypto    vhost-user-crypto backend support
1809   vhost-kernel    vhost kernel backend support
1810   vhost-user      vhost-user backend support
1811   vhost-user-blk-server    vhost-user-blk server support
1812   vhost-vdpa      vhost-vdpa kernel backend support
1813   spice           spice
1814   rbd             rados block device (rbd)
1815   libiscsi        iscsi support
1816   libnfs          nfs support
1817   smartcard       smartcard support (libcacard)
1818   u2f             U2F support (u2f-emu)
1819   libusb          libusb (for usb passthrough)
1820   live-block-migration   Block migration in the main migration stream
1821   usb-redir       usb network redirection support
1822   lzo             support of lzo compression library
1823   snappy          support of snappy compression library
1824   bzip2           support of bzip2 compression library
1825                   (for reading bzip2-compressed dmg images)
1826   lzfse           support of lzfse compression library
1827                   (for reading lzfse-compressed dmg images)
1828   zstd            support for zstd compression library
1829                   (for migration compression and qcow2 cluster compression)
1830   seccomp         seccomp support
1831   coroutine-pool  coroutine freelist (better performance)
1832   glusterfs       GlusterFS backend
1833   tpm             TPM support
1834   libssh          ssh block device support
1835   numa            libnuma support
1836   libxml2         for Parallels image format
1837   tcmalloc        tcmalloc support
1838   jemalloc        jemalloc support
1839   avx2            AVX2 optimization support
1840   avx512f         AVX512F optimization support
1841   replication     replication support
1842   opengl          opengl support
1843   virglrenderer   virgl rendering support
1844   xfsctl          xfsctl support
1845   qom-cast-debug  cast debugging support
1846   tools           build qemu-io, qemu-nbd and qemu-img tools
1847   bochs           bochs image format support
1848   cloop           cloop image format support
1849   dmg             dmg image format support
1850   qcow1           qcow v1 image format support
1851   vdi             vdi image format support
1852   vvfat           vvfat image format support
1853   qed             qed image format support
1854   parallels       parallels image format support
1855   sheepdog        sheepdog block driver support (deprecated)
1856   crypto-afalg    Linux AF_ALG crypto backend driver
1857   capstone        capstone disassembler support
1858   debug-mutex     mutex debugging support
1859   libpmem         libpmem support
1860   xkbcommon       xkbcommon support
1861   rng-none        dummy RNG, avoid using /dev/(u)random and getrandom()
1862   libdaxctl       libdaxctl support
1863   fuse            FUSE block device export
1864   fuse-lseek      SEEK_HOLE/SEEK_DATA support for FUSE exports
1865
1866 NOTE: The object files are built at the place where configure is launched
1867 EOF
1868 exit 0
1869 fi
1870
1871 # Remove old dependency files to make sure that they get properly regenerated
1872 rm -f */config-devices.mak.d
1873
1874 if test -z "$python"
1875 then
1876     error_exit "Python not found. Use --python=/path/to/python"
1877 fi
1878 if ! has "$make"
1879 then
1880     error_exit "GNU make ($make) not found"
1881 fi
1882
1883 # Note that if the Python conditional here evaluates True we will exit
1884 # with status 1 which is a shell 'false' value.
1885 if ! $python -c 'import sys; sys.exit(sys.version_info < (3,6))'; then
1886   error_exit "Cannot use '$python', Python >= 3.6 is required." \
1887       "Use --python=/path/to/python to specify a supported Python."
1888 fi
1889
1890 # Preserve python version since some functionality is dependent on it
1891 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)
1892
1893 # Suppress writing compiled files
1894 python="$python -B"
1895
1896 if test -z "$meson"; then
1897     if test "$explicit_python" = no && has meson && version_ge "$(meson --version)" 0.55.3; then
1898         meson=meson
1899     elif test -e "${source_path}/.git" && test $git_update = 'yes' ; then
1900         meson=git
1901     elif test -e "${source_path}/meson/meson.py" ; then
1902         meson=internal
1903     else
1904         if test "$explicit_python" = yes; then
1905             error_exit "--python requires using QEMU's embedded Meson distribution, but it was not found."
1906         else
1907             error_exit "Meson not found.  Use --meson=/path/to/meson"
1908         fi
1909     fi
1910 else
1911     # Meson uses its own Python interpreter to invoke other Python scripts,
1912     # but the user wants to use the one they specified with --python.
1913     #
1914     # We do not want to override the distro Python interpreter (and sometimes
1915     # cannot: for example in Homebrew /usr/bin/meson is a bash script), so
1916     # just require --meson=git|internal together with --python.
1917     if test "$explicit_python" = yes; then
1918         case "$meson" in
1919             git | internal) ;;
1920             *) error_exit "--python requires using QEMU's embedded Meson distribution." ;;
1921         esac
1922     fi
1923 fi
1924
1925 if test "$meson" = git; then
1926     git_submodules="${git_submodules} meson"
1927 fi
1928
1929 case "$meson" in
1930     git | internal)
1931         meson="$python ${source_path}/meson/meson.py"
1932         ;;
1933     *) meson=$(command -v "$meson") ;;
1934 esac
1935
1936 # Probe for ninja
1937
1938 if test -z "$ninja"; then
1939     for c in ninja ninja-build samu; do
1940         if has $c; then
1941             ninja=$(command -v "$c")
1942             break
1943         fi
1944     done
1945     if test -z "$ninja"; then
1946       error_exit "Cannot find Ninja"
1947     fi
1948 fi
1949
1950 # Check that the C compiler works. Doing this here before testing
1951 # the host CPU ensures that we had a valid CC to autodetect the
1952 # $cpu var (and we should bail right here if that's not the case).
1953 # It also allows the help message to be printed without a CC.
1954 write_c_skeleton;
1955 if compile_object ; then
1956   : C compiler works ok
1957 else
1958     error_exit "\"$cc\" either does not exist or does not work"
1959 fi
1960 if ! compile_prog ; then
1961     error_exit "\"$cc\" cannot build an executable (is your linker broken?)"
1962 fi
1963
1964 # Consult white-list to determine whether to enable werror
1965 # by default.  Only enable by default for git builds
1966 if test -z "$werror" ; then
1967     if test -e "$source_path/.git" && \
1968         { test "$linux" = "yes" || test "$mingw32" = "yes"; }; then
1969         werror="yes"
1970     else
1971         werror="no"
1972     fi
1973 fi
1974
1975 if test "$bogus_os" = "yes"; then
1976     # Now that we know that we're not printing the help and that
1977     # the compiler works (so the results of the check_defines we used
1978     # to identify the OS are reliable), if we didn't recognize the
1979     # host OS we should stop now.
1980     error_exit "Unrecognized host OS (uname -s reports '$(uname -s)')"
1981 fi
1982
1983 # Check whether the compiler matches our minimum requirements:
1984 cat > $TMPC << EOF
1985 #if defined(__clang_major__) && defined(__clang_minor__)
1986 # ifdef __apple_build_version__
1987 #  if __clang_major__ < 5 || (__clang_major__ == 5 && __clang_minor__ < 1)
1988 #   error You need at least XCode Clang v5.1 to compile QEMU
1989 #  endif
1990 # else
1991 #  if __clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ < 4)
1992 #   error You need at least Clang v3.4 to compile QEMU
1993 #  endif
1994 # endif
1995 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
1996 # if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
1997 #  error You need at least GCC v4.8 to compile QEMU
1998 # endif
1999 #else
2000 # error You either need GCC or Clang to compiler QEMU
2001 #endif
2002 int main (void) { return 0; }
2003 EOF
2004 if ! compile_prog "" "" ; then
2005     error_exit "You need at least GCC v4.8 or Clang v3.4 (or XCode Clang v5.1)"
2006 fi
2007
2008 # Accumulate -Wfoo and -Wno-bar separately.
2009 # We will list all of the enable flags first, and the disable flags second.
2010 # Note that we do not add -Werror, because that would enable it for all
2011 # configure tests. If a configure test failed due to -Werror this would
2012 # just silently disable some features, so it's too error prone.
2013
2014 warn_flags=
2015 add_to warn_flags -Wold-style-declaration
2016 add_to warn_flags -Wold-style-definition
2017 add_to warn_flags -Wtype-limits
2018 add_to warn_flags -Wformat-security
2019 add_to warn_flags -Wformat-y2k
2020 add_to warn_flags -Winit-self
2021 add_to warn_flags -Wignored-qualifiers
2022 add_to warn_flags -Wempty-body
2023 add_to warn_flags -Wnested-externs
2024 add_to warn_flags -Wendif-labels
2025 add_to warn_flags -Wexpansion-to-defined
2026
2027 nowarn_flags=
2028 add_to nowarn_flags -Wno-initializer-overrides
2029 add_to nowarn_flags -Wno-missing-include-dirs
2030 add_to nowarn_flags -Wno-shift-negative-value
2031 add_to nowarn_flags -Wno-string-plus-int
2032 add_to nowarn_flags -Wno-typedef-redefinition
2033 add_to nowarn_flags -Wno-tautological-type-limit-compare
2034 add_to nowarn_flags -Wno-psabi
2035
2036 gcc_flags="$warn_flags $nowarn_flags"
2037
2038 cc_has_warning_flag() {
2039     write_c_skeleton;
2040
2041     # Use the positive sense of the flag when testing for -Wno-wombat
2042     # support (gcc will happily accept the -Wno- form of unknown
2043     # warning options).
2044     optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
2045     compile_prog "-Werror $optflag" ""
2046 }
2047
2048 for flag in $gcc_flags; do
2049     if cc_has_warning_flag $flag ; then
2050         QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2051     fi
2052 done
2053
2054 if test "$stack_protector" != "no"; then
2055   cat > $TMPC << EOF
2056 int main(int argc, char *argv[])
2057 {
2058     char arr[64], *p = arr, *c = argv[0];
2059     while (*c) {
2060         *p++ = *c++;
2061     }
2062     return 0;
2063 }
2064 EOF
2065   gcc_flags="-fstack-protector-strong -fstack-protector-all"
2066   sp_on=0
2067   for flag in $gcc_flags; do
2068     # We need to check both a compile and a link, since some compiler
2069     # setups fail only on a .c->.o compile and some only at link time
2070     if compile_object "-Werror $flag" &&
2071        compile_prog "-Werror $flag" ""; then
2072       QEMU_CFLAGS="$QEMU_CFLAGS $flag"
2073       QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
2074       sp_on=1
2075       break
2076     fi
2077   done
2078   if test "$stack_protector" = yes; then
2079     if test $sp_on = 0; then
2080       error_exit "Stack protector not supported"
2081     fi
2082   fi
2083 fi
2084
2085 # Disable -Wmissing-braces on older compilers that warn even for
2086 # the "universal" C zero initializer {0}.
2087 cat > $TMPC << EOF
2088 struct {
2089   int a[2];
2090 } x = {0};
2091 EOF
2092 if compile_object "-Werror" "" ; then
2093   :
2094 else
2095   QEMU_CFLAGS="$QEMU_CFLAGS -Wno-missing-braces"
2096 fi
2097
2098 # Our module code doesn't support Windows
2099 if test "$modules" = "yes" && test "$mingw32" = "yes" ; then
2100   error_exit "Modules are not available for Windows"
2101 fi
2102
2103 # module_upgrades is only reasonable if modules are enabled
2104 if test "$modules" = "no" && test "$module_upgrades" = "yes" ; then
2105   error_exit "Can't enable module-upgrades as Modules are not enabled"
2106 fi
2107
2108 # Static linking is not possible with modules or PIE
2109 if test "$static" = "yes" ; then
2110   if test "$modules" = "yes" ; then
2111     error_exit "static and modules are mutually incompatible"
2112   fi
2113 fi
2114
2115 # Unconditional check for compiler __thread support
2116   cat > $TMPC << EOF
2117 static __thread int tls_var;
2118 int main(void) { return tls_var; }
2119 EOF
2120
2121 if ! compile_prog "-Werror" "" ; then
2122     error_exit "Your compiler does not support the __thread specifier for " \
2123         "Thread-Local Storage (TLS). Please upgrade to a version that does."
2124 fi
2125
2126 cat > $TMPC << EOF
2127
2128 #ifdef __linux__
2129 #  define THREAD __thread
2130 #else
2131 #  define THREAD
2132 #endif
2133 static THREAD int tls_var;
2134 int main(void) { return tls_var; }
2135 EOF
2136
2137 # Check we support --no-pie first; we will need this for building ROMs.
2138 if compile_prog "-Werror -fno-pie" "-no-pie"; then
2139   CFLAGS_NOPIE="-fno-pie"
2140 fi
2141
2142 if test "$static" = "yes"; then
2143   if test "$pie" != "no" && compile_prog "-Werror -fPIE -DPIE" "-static-pie"; then
2144     CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2145     QEMU_LDFLAGS="-static-pie $QEMU_LDFLAGS"
2146     pie="yes"
2147   elif test "$pie" = "yes"; then
2148     error_exit "-static-pie not available due to missing toolchain support"
2149   else
2150     QEMU_LDFLAGS="-static $QEMU_LDFLAGS"
2151     pie="no"
2152   fi
2153 elif test "$pie" = "no"; then
2154   CONFIGURE_CFLAGS="$CFLAGS_NOPIE $CONFIGURE_CFLAGS"
2155 elif compile_prog "-Werror -fPIE -DPIE" "-pie"; then
2156   CONFIGURE_CFLAGS="-fPIE -DPIE $CONFIGURE_CFLAGS"
2157   CONFIGURE_LDFLAGS="-pie $CONFIGURE_LDFLAGS"
2158   pie="yes"
2159 elif test "$pie" = "yes"; then
2160   error_exit "PIE not available due to missing toolchain support"
2161 else
2162   echo "Disabling PIE due to missing toolchain support"
2163   pie="no"
2164 fi
2165
2166 # Detect support for PT_GNU_RELRO + DT_BIND_NOW.
2167 # The combination is known as "full relro", because .got.plt is read-only too.
2168 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
2169   QEMU_LDFLAGS="-Wl,-z,relro -Wl,-z,now $QEMU_LDFLAGS"
2170 fi
2171
2172 ##########################################
2173 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
2174 # use i686 as default anyway, but for those that don't, an explicit
2175 # specification is necessary
2176
2177 if test "$cpu" = "i386"; then
2178   cat > $TMPC << EOF
2179 static int sfaa(int *ptr)
2180 {
2181   return __sync_fetch_and_and(ptr, 0);
2182 }
2183
2184 int main(void)
2185 {
2186   int val = 42;
2187   val = __sync_val_compare_and_swap(&val, 0, 1);
2188   sfaa(&val);
2189   return val;
2190 }
2191 EOF
2192   if ! compile_prog "" "" ; then
2193     QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
2194   fi
2195 fi
2196
2197 #########################################
2198 # Solaris specific configure tool chain decisions
2199
2200 if test "$solaris" = "yes" ; then
2201   if has ar; then
2202     :
2203   else
2204     if test -f /usr/ccs/bin/ar ; then
2205       error_exit "No path includes ar" \
2206           "Add /usr/ccs/bin to your path and rerun configure"
2207     fi
2208     error_exit "No path includes ar"
2209   fi
2210 fi
2211
2212 if test -z "${target_list+xxx}" ; then
2213     default_targets=yes
2214     for target in $default_target_list; do
2215         target_list="$target_list $target"
2216     done
2217     target_list="${target_list# }"
2218 else
2219     default_targets=no
2220     target_list=$(echo "$target_list" | sed -e 's/,/ /g')
2221     for target in $target_list; do
2222         # Check that we recognised the target name; this allows a more
2223         # friendly error message than if we let it fall through.
2224         case " $default_target_list " in
2225             *" $target "*)
2226                 ;;
2227             *)
2228                 error_exit "Unknown target name '$target'"
2229                 ;;
2230         esac
2231     done
2232 fi
2233
2234 for target in $target_list; do
2235     # if a deprecated target is enabled we note it here
2236     if echo "$deprecated_targets_list" | grep -q "$target"; then
2237         add_to deprecated_features $target
2238     fi
2239 done
2240
2241 # see if system emulation was really requested
2242 case " $target_list " in
2243   *"-softmmu "*) softmmu=yes
2244   ;;
2245   *) softmmu=no
2246   ;;
2247 esac
2248
2249 feature_not_found() {
2250   feature=$1
2251   remedy=$2
2252
2253   error_exit "User requested feature $feature" \
2254       "configure was not able to find it." \
2255       "$remedy"
2256 }
2257
2258 # ---
2259 # big/little endian test
2260 cat > $TMPC << EOF
2261 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
2262 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
2263 extern int foo(short *, short *);
2264 int main(int argc, char *argv[]) {
2265     return foo(big_endian, little_endian);
2266 }
2267 EOF
2268
2269 if compile_object ; then
2270     if strings -a $TMPO | grep -q BiGeNdIaN ; then
2271         bigendian="yes"
2272     elif strings -a $TMPO | grep -q LiTtLeEnDiAn ; then
2273         bigendian="no"
2274     else
2275         echo big/little test failed
2276     fi
2277 else
2278     echo big/little test failed
2279 fi
2280
2281 ##########################################
2282 # system tools
2283 if test -z "$want_tools"; then
2284     if test "$softmmu" = "no"; then
2285         want_tools=no
2286     else
2287         want_tools=yes
2288     fi
2289 fi
2290
2291 ##########################################
2292 # cocoa implies not SDL or GTK
2293 # (the cocoa UI code currently assumes it is always the active UI
2294 # and doesn't interact well with other UI frontend code)
2295 if test "$cocoa" = "enabled"; then
2296     if test "$sdl" = "enabled"; then
2297         error_exit "Cocoa and SDL UIs cannot both be enabled at once"
2298     fi
2299     if test "$gtk" = "yes"; then
2300         error_exit "Cocoa and GTK UIs cannot both be enabled at once"
2301     fi
2302     gtk=no
2303     sdl=disabled
2304 fi
2305
2306 # Some versions of Mac OS X incorrectly define SIZE_MAX
2307 cat > $TMPC << EOF
2308 #include <stdint.h>
2309 #include <stdio.h>
2310 int main(int argc, char *argv[]) {
2311     return printf("%zu", SIZE_MAX);
2312 }
2313 EOF
2314 have_broken_size_max=no
2315 if ! compile_object -Werror ; then
2316     have_broken_size_max=yes
2317 fi
2318
2319 ##########################################
2320 # L2TPV3 probe
2321
2322 cat > $TMPC <<EOF
2323 #include <sys/socket.h>
2324 #include <linux/ip.h>
2325 int main(void) { return sizeof(struct mmsghdr); }
2326 EOF
2327 if compile_prog "" "" ; then
2328   l2tpv3=yes
2329 else
2330   l2tpv3=no
2331 fi
2332
2333 cat > $TMPC <<EOF
2334 #include <sys/mman.h>
2335 int main(int argc, char *argv[]) {
2336     return mlockall(MCL_FUTURE);
2337 }
2338 EOF
2339 if compile_prog "" "" ; then
2340   have_mlockall=yes
2341 else
2342   have_mlockall=no
2343 fi
2344
2345 #########################################
2346 # vhost interdependencies and host support
2347
2348 # vhost backends
2349 if test "$vhost_user" = "yes" && test "$linux" != "yes"; then
2350   error_exit "vhost-user is only available on Linux"
2351 fi
2352 test "$vhost_vdpa" = "" && vhost_vdpa=$linux
2353 if test "$vhost_vdpa" = "yes" && test "$linux" != "yes"; then
2354   error_exit "vhost-vdpa is only available on Linux"
2355 fi
2356 test "$vhost_kernel" = "" && vhost_kernel=$linux
2357 if test "$vhost_kernel" = "yes" && test "$linux" != "yes"; then
2358   error_exit "vhost-kernel is only available on Linux"
2359 fi
2360
2361 # vhost-kernel devices
2362 test "$vhost_scsi" = "" && vhost_scsi=$vhost_kernel
2363 if test "$vhost_scsi" = "yes" && test "$vhost_kernel" != "yes"; then
2364   error_exit "--enable-vhost-scsi requires --enable-vhost-kernel"
2365 fi
2366 test "$vhost_vsock" = "" && vhost_vsock=$vhost_kernel
2367 if test "$vhost_vsock" = "yes" && test "$vhost_kernel" != "yes"; then
2368   error_exit "--enable-vhost-vsock requires --enable-vhost-kernel"
2369 fi
2370
2371 # vhost-user backends
2372 test "$vhost_net_user" = "" && vhost_net_user=$vhost_user
2373 if test "$vhost_net_user" = "yes" && test "$vhost_user" = "no"; then
2374   error_exit "--enable-vhost-net-user requires --enable-vhost-user"
2375 fi
2376 test "$vhost_crypto" = "" && vhost_crypto=$vhost_user
2377 if test "$vhost_crypto" = "yes" && test "$vhost_user" = "no"; then
2378   error_exit "--enable-vhost-crypto requires --enable-vhost-user"
2379 fi
2380 test "$vhost_user_fs" = "" && vhost_user_fs=$vhost_user
2381 if test "$vhost_user_fs" = "yes" && test "$vhost_user" = "no"; then
2382   error_exit "--enable-vhost-user-fs requires --enable-vhost-user"
2383 fi
2384 #vhost-vdpa backends
2385 test "$vhost_net_vdpa" = "" && vhost_net_vdpa=$vhost_vdpa
2386 if test "$vhost_net_vdpa" = "yes" && test "$vhost_vdpa" = "no"; then
2387   error_exit "--enable-vhost-net-vdpa requires --enable-vhost-vdpa"
2388 fi
2389
2390 # OR the vhost-kernel, vhost-vdpa and vhost-user values for simplicity
2391 if test "$vhost_net" = ""; then
2392   test "$vhost_net_user" = "yes" && vhost_net=yes
2393   test "$vhost_net_vdpa" = "yes" && vhost_net=yes
2394   test "$vhost_kernel" = "yes" && vhost_net=yes
2395 fi
2396
2397 ##########################################
2398 # pkg-config probe
2399
2400 if ! has "$pkg_config_exe"; then
2401   error_exit "pkg-config binary '$pkg_config_exe' not found"
2402 fi
2403
2404 ##########################################
2405 # NPTL probe
2406
2407 if test "$linux_user" = "yes"; then
2408   cat > $TMPC <<EOF
2409 #include <sched.h>
2410 #include <linux/futex.h>
2411 int main(void) {
2412 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
2413 #error bork
2414 #endif
2415   return 0;
2416 }
2417 EOF
2418   if ! compile_object ; then
2419     feature_not_found "nptl" "Install glibc and linux kernel headers."
2420   fi
2421 fi
2422
2423 ##########################################
2424 # lzo check
2425
2426 if test "$lzo" != "no" ; then
2427     cat > $TMPC << EOF
2428 #include <lzo/lzo1x.h>
2429 int main(void) { lzo_version(); return 0; }
2430 EOF
2431     if compile_prog "" "-llzo2" ; then
2432         lzo_libs="-llzo2"
2433         lzo="yes"
2434     else
2435         if test "$lzo" = "yes"; then
2436             feature_not_found "liblzo2" "Install liblzo2 devel"
2437         fi
2438         lzo="no"
2439     fi
2440 fi
2441
2442 ##########################################
2443 # snappy check
2444
2445 if test "$snappy" != "no" ; then
2446     cat > $TMPC << EOF
2447 #include <snappy-c.h>
2448 int main(void) { snappy_max_compressed_length(4096); return 0; }
2449 EOF
2450     if compile_prog "" "-lsnappy" ; then
2451         snappy_libs='-lsnappy'
2452         snappy="yes"
2453     else
2454         if test "$snappy" = "yes"; then
2455             feature_not_found "libsnappy" "Install libsnappy devel"
2456         fi
2457         snappy="no"
2458     fi
2459 fi
2460
2461 ##########################################
2462 # bzip2 check
2463
2464 if test "$bzip2" != "no" ; then
2465     cat > $TMPC << EOF
2466 #include <bzlib.h>
2467 int main(void) { BZ2_bzlibVersion(); return 0; }
2468 EOF
2469     if compile_prog "" "-lbz2" ; then
2470         bzip2="yes"
2471     else
2472         if test "$bzip2" = "yes"; then
2473             feature_not_found "libbzip2" "Install libbzip2 devel"
2474         fi
2475         bzip2="no"
2476     fi
2477 fi
2478
2479 ##########################################
2480 # lzfse check
2481
2482 if test "$lzfse" != "no" ; then
2483     cat > $TMPC << EOF
2484 #include <lzfse.h>
2485 int main(void) { lzfse_decode_scratch_size(); return 0; }
2486 EOF
2487     if compile_prog "" "-llzfse" ; then
2488         lzfse="yes"
2489     else
2490         if test "$lzfse" = "yes"; then
2491             feature_not_found "lzfse" "Install lzfse devel"
2492         fi
2493         lzfse="no"
2494     fi
2495 fi
2496
2497 ##########################################
2498 # zstd check
2499
2500 if test "$zstd" != "no" ; then
2501     libzstd_minver="1.4.0"
2502     if $pkg_config --atleast-version=$libzstd_minver libzstd ; then
2503         zstd_cflags="$($pkg_config --cflags libzstd)"
2504         zstd_libs="$($pkg_config --libs libzstd)"
2505         zstd="yes"
2506     else
2507         if test "$zstd" = "yes" ; then
2508             feature_not_found "libzstd" "Install libzstd devel"
2509         fi
2510         zstd="no"
2511     fi
2512 fi
2513
2514 ##########################################
2515 # libseccomp check
2516
2517 if test "$seccomp" != "no" ; then
2518     libseccomp_minver="2.3.0"
2519     if $pkg_config --atleast-version=$libseccomp_minver libseccomp ; then
2520         seccomp_cflags="$($pkg_config --cflags libseccomp)"
2521         seccomp_libs="$($pkg_config --libs libseccomp)"
2522         seccomp="yes"
2523     else
2524         if test "$seccomp" = "yes" ; then
2525             feature_not_found "libseccomp" \
2526                  "Install libseccomp devel >= $libseccomp_minver"
2527         fi
2528         seccomp="no"
2529     fi
2530 fi
2531
2532 ##########################################
2533 # xen probe
2534
2535 if test "$xen" != "disabled" ; then
2536   # Check whether Xen library path is specified via --extra-ldflags to avoid
2537   # overriding this setting with pkg-config output. If not, try pkg-config
2538   # to obtain all needed flags.
2539
2540   if ! echo $EXTRA_LDFLAGS | grep tools/libxc > /dev/null && \
2541      $pkg_config --exists xencontrol ; then
2542     xen_ctrl_version="$(printf '%d%02d%02d' \
2543       $($pkg_config --modversion xencontrol | sed 's/\./ /g') )"
2544     xen=enabled
2545     xen_pc="xencontrol xenstore xenforeignmemory xengnttab"
2546     xen_pc="$xen_pc xenevtchn xendevicemodel"
2547     if $pkg_config --exists xentoolcore; then
2548       xen_pc="$xen_pc xentoolcore"
2549     fi
2550     xen_cflags="$($pkg_config --cflags $xen_pc)"
2551     xen_libs="$($pkg_config --libs $xen_pc)"
2552   else
2553
2554     xen_libs="-lxenstore -lxenctrl"
2555     xen_stable_libs="-lxenforeignmemory -lxengnttab -lxenevtchn"
2556
2557     # First we test whether Xen headers and libraries are available.
2558     # If no, we are done and there is no Xen support.
2559     # If yes, more tests are run to detect the Xen version.
2560
2561     # Xen (any)
2562     cat > $TMPC <<EOF
2563 #include <xenctrl.h>
2564 int main(void) {
2565   return 0;
2566 }
2567 EOF
2568     if ! compile_prog "" "$xen_libs" ; then
2569       # Xen not found
2570       if test "$xen" = "enabled" ; then
2571         feature_not_found "xen" "Install xen devel"
2572       fi
2573       xen=disabled
2574
2575     # Xen unstable
2576     elif
2577         cat > $TMPC <<EOF &&
2578 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2579 #define __XEN_TOOLS__
2580 #include <xendevicemodel.h>
2581 #include <xenforeignmemory.h>
2582 int main(void) {
2583   xendevicemodel_handle *xd;
2584   xenforeignmemory_handle *xfmem;
2585
2586   xd = xendevicemodel_open(0, 0);
2587   xendevicemodel_pin_memory_cacheattr(xd, 0, 0, 0, 0);
2588
2589   xfmem = xenforeignmemory_open(0, 0);
2590   xenforeignmemory_map_resource(xfmem, 0, 0, 0, 0, 0, NULL, 0, 0);
2591
2592   return 0;
2593 }
2594 EOF
2595         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2596       then
2597       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2598       xen_ctrl_version=41100
2599       xen=enabled
2600     elif
2601         cat > $TMPC <<EOF &&
2602 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2603 #include <xenforeignmemory.h>
2604 #include <xentoolcore.h>
2605 int main(void) {
2606   xenforeignmemory_handle *xfmem;
2607
2608   xfmem = xenforeignmemory_open(0, 0);
2609   xenforeignmemory_map2(xfmem, 0, 0, 0, 0, 0, 0, 0);
2610   xentoolcore_restrict_all(0);
2611
2612   return 0;
2613 }
2614 EOF
2615         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs -lxentoolcore"
2616       then
2617       xen_stable_libs="-lxendevicemodel $xen_stable_libs -lxentoolcore"
2618       xen_ctrl_version=41000
2619       xen=enabled
2620     elif
2621         cat > $TMPC <<EOF &&
2622 #undef XC_WANT_COMPAT_DEVICEMODEL_API
2623 #define __XEN_TOOLS__
2624 #include <xendevicemodel.h>
2625 int main(void) {
2626   xendevicemodel_handle *xd;
2627
2628   xd = xendevicemodel_open(0, 0);
2629   xendevicemodel_close(xd);
2630
2631   return 0;
2632 }
2633 EOF
2634         compile_prog "" "$xen_libs -lxendevicemodel $xen_stable_libs"
2635       then
2636       xen_stable_libs="-lxendevicemodel $xen_stable_libs"
2637       xen_ctrl_version=40900
2638       xen=enabled
2639     elif
2640         cat > $TMPC <<EOF &&
2641 /*
2642  * If we have stable libs the we don't want the libxc compat
2643  * layers, regardless of what CFLAGS we may have been given.
2644  *
2645  * Also, check if xengnttab_grant_copy_segment_t is defined and
2646  * grant copy operation is implemented.
2647  */
2648 #undef XC_WANT_COMPAT_EVTCHN_API
2649 #undef XC_WANT_COMPAT_GNTTAB_API
2650 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2651 #include <xenctrl.h>
2652 #include <xenstore.h>
2653 #include <xenevtchn.h>
2654 #include <xengnttab.h>
2655 #include <xenforeignmemory.h>
2656 #include <stdint.h>
2657 #include <xen/hvm/hvm_info_table.h>
2658 #if !defined(HVM_MAX_VCPUS)
2659 # error HVM_MAX_VCPUS not defined
2660 #endif
2661 int main(void) {
2662   xc_interface *xc = NULL;
2663   xenforeignmemory_handle *xfmem;
2664   xenevtchn_handle *xe;
2665   xengnttab_handle *xg;
2666   xengnttab_grant_copy_segment_t* seg = NULL;
2667
2668   xs_daemon_open();
2669
2670   xc = xc_interface_open(0, 0, 0);
2671   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2672   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2673   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2674   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2675
2676   xfmem = xenforeignmemory_open(0, 0);
2677   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2678
2679   xe = xenevtchn_open(0, 0);
2680   xenevtchn_fd(xe);
2681
2682   xg = xengnttab_open(0, 0);
2683   xengnttab_grant_copy(xg, 0, seg);
2684
2685   return 0;
2686 }
2687 EOF
2688         compile_prog "" "$xen_libs $xen_stable_libs"
2689       then
2690       xen_ctrl_version=40800
2691       xen=enabled
2692     elif
2693         cat > $TMPC <<EOF &&
2694 /*
2695  * If we have stable libs the we don't want the libxc compat
2696  * layers, regardless of what CFLAGS we may have been given.
2697  */
2698 #undef XC_WANT_COMPAT_EVTCHN_API
2699 #undef XC_WANT_COMPAT_GNTTAB_API
2700 #undef XC_WANT_COMPAT_MAP_FOREIGN_API
2701 #include <xenctrl.h>
2702 #include <xenstore.h>
2703 #include <xenevtchn.h>
2704 #include <xengnttab.h>
2705 #include <xenforeignmemory.h>
2706 #include <stdint.h>
2707 #include <xen/hvm/hvm_info_table.h>
2708 #if !defined(HVM_MAX_VCPUS)
2709 # error HVM_MAX_VCPUS not defined
2710 #endif
2711 int main(void) {
2712   xc_interface *xc = NULL;
2713   xenforeignmemory_handle *xfmem;
2714   xenevtchn_handle *xe;
2715   xengnttab_handle *xg;
2716
2717   xs_daemon_open();
2718
2719   xc = xc_interface_open(0, 0, 0);
2720   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2721   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2722   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2723   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2724
2725   xfmem = xenforeignmemory_open(0, 0);
2726   xenforeignmemory_map(xfmem, 0, 0, 0, 0, 0);
2727
2728   xe = xenevtchn_open(0, 0);
2729   xenevtchn_fd(xe);
2730
2731   xg = xengnttab_open(0, 0);
2732   xengnttab_map_grant_ref(xg, 0, 0, 0);
2733
2734   return 0;
2735 }
2736 EOF
2737         compile_prog "" "$xen_libs $xen_stable_libs"
2738       then
2739       xen_ctrl_version=40701
2740       xen=enabled
2741
2742     # Xen 4.6
2743     elif
2744         cat > $TMPC <<EOF &&
2745 #include <xenctrl.h>
2746 #include <xenstore.h>
2747 #include <stdint.h>
2748 #include <xen/hvm/hvm_info_table.h>
2749 #if !defined(HVM_MAX_VCPUS)
2750 # error HVM_MAX_VCPUS not defined
2751 #endif
2752 int main(void) {
2753   xc_interface *xc;
2754   xs_daemon_open();
2755   xc = xc_interface_open(0, 0, 0);
2756   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2757   xc_gnttab_open(NULL, 0);
2758   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2759   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2760   xc_hvm_create_ioreq_server(xc, 0, HVM_IOREQSRV_BUFIOREQ_ATOMIC, NULL);
2761   xc_reserved_device_memory_map(xc, 0, 0, 0, 0, NULL, 0);
2762   return 0;
2763 }
2764 EOF
2765         compile_prog "" "$xen_libs"
2766       then
2767       xen_ctrl_version=40600
2768       xen=enabled
2769
2770     # Xen 4.5
2771     elif
2772         cat > $TMPC <<EOF &&
2773 #include <xenctrl.h>
2774 #include <xenstore.h>
2775 #include <stdint.h>
2776 #include <xen/hvm/hvm_info_table.h>
2777 #if !defined(HVM_MAX_VCPUS)
2778 # error HVM_MAX_VCPUS not defined
2779 #endif
2780 int main(void) {
2781   xc_interface *xc;
2782   xs_daemon_open();
2783   xc = xc_interface_open(0, 0, 0);
2784   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2785   xc_gnttab_open(NULL, 0);
2786   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2787   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2788   xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
2789   return 0;
2790 }
2791 EOF
2792         compile_prog "" "$xen_libs"
2793       then
2794       xen_ctrl_version=40500
2795       xen=enabled
2796
2797     elif
2798         cat > $TMPC <<EOF &&
2799 #include <xenctrl.h>
2800 #include <xenstore.h>
2801 #include <stdint.h>
2802 #include <xen/hvm/hvm_info_table.h>
2803 #if !defined(HVM_MAX_VCPUS)
2804 # error HVM_MAX_VCPUS not defined
2805 #endif
2806 int main(void) {
2807   xc_interface *xc;
2808   xs_daemon_open();
2809   xc = xc_interface_open(0, 0, 0);
2810   xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2811   xc_gnttab_open(NULL, 0);
2812   xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
2813   xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
2814   return 0;
2815 }
2816 EOF
2817         compile_prog "" "$xen_libs"
2818       then
2819       xen_ctrl_version=40200
2820       xen=enabled
2821
2822     else
2823       if test "$xen" = "enabled" ; then
2824         feature_not_found "xen (unsupported version)" \
2825                           "Install a supported xen (xen 4.2 or newer)"
2826       fi
2827       xen=disabled
2828     fi
2829
2830     if test "$xen" = enabled; then
2831       if test $xen_ctrl_version -ge 40701  ; then
2832         xen_libs="$xen_libs $xen_stable_libs "
2833       fi
2834     fi
2835   fi
2836 fi
2837
2838 if test "$xen_pci_passthrough" != "disabled"; then
2839   if test "$xen" = "enabled" && test "$linux" = "yes"; then
2840     xen_pci_passthrough=enabled
2841   else
2842     if test "$xen_pci_passthrough" = "enabled"; then
2843       error_exit "User requested feature Xen PCI Passthrough" \
2844           " but this feature requires /sys from Linux"
2845     fi
2846     xen_pci_passthrough=disabled
2847   fi
2848 fi
2849
2850 ##########################################
2851 # gettext probe
2852 if test "$gettext" != "false" ; then
2853   if has xgettext; then
2854     gettext=true
2855   else
2856     if test "$gettext" = "true" ; then
2857       feature_not_found "gettext" "Install xgettext binary"
2858     fi
2859     gettext=false
2860   fi
2861 fi
2862
2863 ##########################################
2864 # X11 probe
2865 if $pkg_config --exists "x11"; then
2866     have_x11=yes
2867     x11_cflags=$($pkg_config --cflags x11)
2868     x11_libs=$($pkg_config --libs x11)
2869 fi
2870
2871 ##########################################
2872 # GTK probe
2873
2874 if test "$gtk" != "no"; then
2875     gtkpackage="gtk+-3.0"
2876     gtkx11package="gtk+-x11-3.0"
2877     gtkversion="3.22.0"
2878     if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2879         gtk_cflags=$($pkg_config --cflags $gtkpackage)
2880         gtk_libs=$($pkg_config --libs $gtkpackage)
2881         gtk_version=$($pkg_config --modversion $gtkpackage)
2882         if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2883             need_x11=yes
2884             gtk_cflags="$gtk_cflags $x11_cflags"
2885             gtk_libs="$gtk_libs $x11_libs"
2886         fi
2887         gtk="yes"
2888     elif test "$gtk" = "yes"; then
2889         feature_not_found "gtk" "Install gtk3-devel"
2890     else
2891         gtk="no"
2892     fi
2893 fi
2894
2895
2896 ##########################################
2897 # GNUTLS probe
2898
2899 if test "$gnutls" != "no"; then
2900     pass="no"
2901     if $pkg_config --exists "gnutls >= 3.1.18"; then
2902         gnutls_cflags=$($pkg_config --cflags gnutls)
2903         gnutls_libs=$($pkg_config --libs gnutls)
2904         # Packaging for the static libraries is not always correct.
2905         # At least ubuntu 18.04 ships only shared libraries.
2906         write_c_skeleton
2907         if compile_prog "" "$gnutls_libs" ; then
2908             pass="yes"
2909         fi
2910     fi
2911     if test "$pass" = "no" && test "$gnutls" = "yes"; then
2912         feature_not_found "gnutls" "Install gnutls devel >= 3.1.18"
2913     else
2914         gnutls="$pass"
2915     fi
2916 fi
2917
2918
2919 # If user didn't give a --disable/enable-gcrypt flag,
2920 # then mark as disabled if user requested nettle
2921 # explicitly
2922 if test -z "$gcrypt"
2923 then
2924     if test "$nettle" = "yes"
2925     then
2926         gcrypt="no"
2927     fi
2928 fi
2929
2930 # If user didn't give a --disable/enable-nettle flag,
2931 # then mark as disabled if user requested gcrypt
2932 # explicitly
2933 if test -z "$nettle"
2934 then
2935     if test "$gcrypt" = "yes"
2936     then
2937         nettle="no"
2938     fi
2939 fi
2940
2941 has_libgcrypt() {
2942     if ! has "libgcrypt-config"
2943     then
2944         return 1
2945     fi
2946
2947     if test -n "$cross_prefix"
2948     then
2949         host=$(libgcrypt-config --host)
2950         if test "$host-" != $cross_prefix
2951         then
2952             return 1
2953         fi
2954     fi
2955
2956     maj=`libgcrypt-config --version | awk -F . '{print $1}'`
2957     min=`libgcrypt-config --version | awk -F . '{print $2}'`
2958
2959     if test $maj != 1 || test $min -lt 5
2960     then
2961        return 1
2962     fi
2963
2964     return 0
2965 }
2966
2967
2968 if test "$nettle" != "no"; then
2969     pass="no"
2970     if $pkg_config --exists "nettle >= 2.7.1"; then
2971         nettle_cflags=$($pkg_config --cflags nettle)
2972         nettle_libs=$($pkg_config --libs nettle)
2973         nettle_version=$($pkg_config --modversion nettle)
2974         # Link test to make sure the given libraries work (e.g for static).
2975         write_c_skeleton
2976         if compile_prog "" "$nettle_libs" ; then
2977             if test -z "$gcrypt"; then
2978                gcrypt="no"
2979             fi
2980             pass="yes"
2981         fi
2982     fi
2983     if test "$pass" = "yes"
2984     then
2985         cat > $TMPC << EOF
2986 #include <nettle/xts.h>
2987 int main(void) {
2988   return 0;
2989 }
2990 EOF
2991         if compile_prog "$nettle_cflags" "$nettle_libs" ; then
2992             nettle_xts=yes
2993             qemu_private_xts=no
2994         fi
2995     fi
2996     if test "$pass" = "no" && test "$nettle" = "yes"; then
2997         feature_not_found "nettle" "Install nettle devel >= 2.7.1"
2998     else
2999         nettle="$pass"
3000     fi
3001 fi
3002
3003 if test "$gcrypt" != "no"; then
3004     pass="no"
3005     if has_libgcrypt; then
3006         gcrypt_cflags=$(libgcrypt-config --cflags)
3007         gcrypt_libs=$(libgcrypt-config --libs)
3008         # Debian has removed -lgpg-error from libgcrypt-config
3009         # as it "spreads unnecessary dependencies" which in
3010         # turn breaks static builds...
3011         if test "$static" = "yes"
3012         then
3013             gcrypt_libs="$gcrypt_libs -lgpg-error"
3014         fi
3015
3016         # Link test to make sure the given libraries work (e.g for static).
3017         write_c_skeleton
3018         if compile_prog "" "$gcrypt_libs" ; then
3019             pass="yes"
3020         fi
3021     fi
3022     if test "$pass" = "yes"; then
3023         gcrypt="yes"
3024         cat > $TMPC << EOF
3025 #include <gcrypt.h>
3026 int main(void) {
3027   gcry_mac_hd_t handle;
3028   gcry_mac_open(&handle, GCRY_MAC_HMAC_MD5,
3029                 GCRY_MAC_FLAG_SECURE, NULL);
3030   return 0;
3031 }
3032 EOF
3033         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3034             gcrypt_hmac=yes
3035         fi
3036         cat > $TMPC << EOF
3037 #include <gcrypt.h>
3038 int main(void) {
3039   gcry_cipher_hd_t handle;
3040   gcry_cipher_open(&handle, GCRY_CIPHER_AES, GCRY_CIPHER_MODE_XTS, 0);
3041   return 0;
3042 }
3043 EOF
3044         if compile_prog "$gcrypt_cflags" "$gcrypt_libs" ; then
3045             gcrypt_xts=yes
3046             qemu_private_xts=no
3047         fi
3048     elif test "$gcrypt" = "yes"; then
3049         feature_not_found "gcrypt" "Install gcrypt devel >= 1.5.0"
3050     else
3051         gcrypt="no"
3052     fi
3053 fi
3054
3055
3056 if test "$gcrypt" = "yes" && test "$nettle" = "yes"
3057 then
3058     error_exit "Only one of gcrypt & nettle can be enabled"
3059 fi
3060
3061 ##########################################
3062 # libtasn1 - only for the TLS creds/session test suite
3063
3064 tasn1=yes
3065 tasn1_cflags=""
3066 tasn1_libs=""
3067 if $pkg_config --exists "libtasn1"; then
3068     tasn1_cflags=$($pkg_config --cflags libtasn1)
3069     tasn1_libs=$($pkg_config --libs libtasn1)
3070 else
3071     tasn1=no
3072 fi
3073
3074
3075 ##########################################
3076 # PAM probe
3077
3078 if test "$auth_pam" != "no"; then
3079     cat > $TMPC <<EOF
3080 #include <security/pam_appl.h>
3081 #include <stdio.h>
3082 int main(void) {
3083    const char *service_name = "qemu";
3084    const char *user = "frank";
3085    const struct pam_conv pam_conv = { 0 };
3086    pam_handle_t *pamh = NULL;
3087    pam_start(service_name, user, &pam_conv, &pamh);
3088    return 0;
3089 }
3090 EOF
3091     if compile_prog "" "-lpam" ; then
3092         auth_pam=yes
3093     else
3094         if test "$auth_pam" = "yes"; then
3095             feature_not_found "PAM" "Install PAM development package"
3096         else
3097             auth_pam=no
3098         fi
3099     fi
3100 fi
3101
3102 ##########################################
3103 # VTE probe
3104
3105 if test "$vte" != "no"; then
3106     vteminversion="0.32.0"
3107     if $pkg_config --exists "vte-2.91"; then
3108       vtepackage="vte-2.91"
3109     else
3110       vtepackage="vte-2.90"
3111     fi
3112     if $pkg_config --exists "$vtepackage >= $vteminversion"; then
3113         vte_cflags=$($pkg_config --cflags $vtepackage)
3114         vte_libs=$($pkg_config --libs $vtepackage)
3115         vteversion=$($pkg_config --modversion $vtepackage)
3116         vte="yes"
3117     elif test "$vte" = "yes"; then
3118         feature_not_found "vte" "Install libvte-2.90/2.91 devel"
3119     else
3120         vte="no"
3121     fi
3122 fi
3123
3124 ##########################################
3125 # RDMA needs OpenFabrics libraries
3126 if test "$rdma" != "no" ; then
3127   cat > $TMPC <<EOF
3128 #include <rdma/rdma_cma.h>
3129 int main(void) { return 0; }
3130 EOF
3131   rdma_libs="-lrdmacm -libverbs -libumad"
3132   if compile_prog "" "$rdma_libs" ; then
3133     rdma="yes"
3134   else
3135     if test "$rdma" = "yes" ; then
3136         error_exit \
3137             " OpenFabrics librdmacm/libibverbs/libibumad not present." \
3138             " Your options:" \
3139             "  (1) Fast: Install infiniband packages (devel) from your distro." \
3140             "  (2) Cleanest: Install libraries from www.openfabrics.org" \
3141             "  (3) Also: Install softiwarp if you don't have RDMA hardware"
3142     fi
3143     rdma="no"
3144   fi
3145 fi
3146
3147 ##########################################
3148 # PVRDMA detection
3149
3150 cat > $TMPC <<EOF &&
3151 #include <sys/mman.h>
3152
3153 int
3154 main(void)
3155 {
3156     char buf = 0;
3157     void *addr = &buf;
3158     addr = mremap(addr, 0, 1, MREMAP_MAYMOVE | MREMAP_FIXED);
3159
3160     return 0;
3161 }
3162 EOF
3163
3164 if test "$rdma" = "yes" ; then
3165     case "$pvrdma" in
3166     "")
3167         if compile_prog "" ""; then
3168             pvrdma="yes"
3169         else
3170             pvrdma="no"
3171         fi
3172         ;;
3173     "yes")
3174         if ! compile_prog "" ""; then
3175             error_exit "PVRDMA is not supported since mremap is not implemented"
3176         fi
3177         pvrdma="yes"
3178         ;;
3179     "no")
3180         pvrdma="no"
3181         ;;
3182     esac
3183 else
3184     if test "$pvrdma" = "yes" ; then
3185         error_exit "PVRDMA requires rdma suppport"
3186     fi
3187     pvrdma="no"
3188 fi
3189
3190 # Let's see if enhanced reg_mr is supported
3191 if test "$pvrdma" = "yes" ; then
3192
3193 cat > $TMPC <<EOF &&
3194 #include <infiniband/verbs.h>
3195
3196 int
3197 main(void)
3198 {
3199     struct ibv_mr *mr;
3200     struct ibv_pd *pd = NULL;
3201     size_t length = 10;
3202     uint64_t iova = 0;
3203     int access = 0;
3204     void *addr = NULL;
3205
3206     mr = ibv_reg_mr_iova(pd, addr, length, iova, access);
3207
3208     ibv_dereg_mr(mr);
3209
3210     return 0;
3211 }
3212 EOF
3213     if ! compile_prog "" "-libverbs"; then
3214         QEMU_CFLAGS="$QEMU_CFLAGS -DLEGACY_RDMA_REG_MR"
3215     fi
3216 fi
3217
3218 ##########################################
3219 # xfsctl() probe, used for file-posix.c
3220 if test "$xfs" != "no" ; then
3221   cat > $TMPC << EOF
3222 #include <stddef.h>  /* NULL */
3223 #include <xfs/xfs.h>
3224 int main(void)
3225 {
3226     xfsctl(NULL, 0, 0, NULL);
3227     return 0;
3228 }
3229 EOF
3230   if compile_prog "" "" ; then
3231     xfs="yes"
3232   else
3233     if test "$xfs" = "yes" ; then
3234       feature_not_found "xfs" "Install xfsprogs/xfslibs devel"
3235     fi
3236     xfs=no
3237   fi
3238 fi
3239
3240 ##########################################
3241 # vde libraries probe
3242 if test "$vde" != "no" ; then
3243   vde_libs="-lvdeplug"
3244   cat > $TMPC << EOF
3245 #include <libvdeplug.h>
3246 int main(void)
3247 {
3248     struct vde_open_args a = {0, 0, 0};
3249     char s[] = "";
3250     vde_open(s, s, &a);
3251     return 0;
3252 }
3253 EOF
3254   if compile_prog "" "$vde_libs" ; then
3255     vde=yes
3256   else
3257     if test "$vde" = "yes" ; then
3258       feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
3259     fi
3260     vde=no
3261   fi
3262 fi
3263
3264 ##########################################
3265 # netmap support probe
3266 # Apart from looking for netmap headers, we make sure that the host API version
3267 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
3268 # a minor/major version number. Minor new features will be marked with values up
3269 # to 15, and if something happens that requires a change to the backend we will
3270 # move above 15, submit the backend fixes and modify this two bounds.
3271 if test "$netmap" != "no" ; then
3272   cat > $TMPC << EOF
3273 #include <inttypes.h>
3274 #include <net/if.h>
3275 #include <net/netmap.h>
3276 #include <net/netmap_user.h>
3277 #if (NETMAP_API < 11) || (NETMAP_API > 15)
3278 #error
3279 #endif
3280 int main(void) { return 0; }
3281 EOF
3282   if compile_prog "" "" ; then
3283     netmap=yes
3284   else
3285     if test "$netmap" = "yes" ; then
3286       feature_not_found "netmap"
3287     fi
3288     netmap=no
3289   fi
3290 fi
3291
3292 ##########################################
3293 # libcap-ng library probe
3294 if test "$cap_ng" != "no" ; then
3295   cap_libs="-lcap-ng"
3296   cat > $TMPC << EOF
3297 #include <cap-ng.h>
3298 int main(void)
3299 {
3300     capng_capability_to_name(CAPNG_EFFECTIVE);
3301     return 0;
3302 }
3303 EOF
3304   if compile_prog "" "$cap_libs" ; then
3305     cap_ng=yes
3306   else
3307     if test "$cap_ng" = "yes" ; then
3308       feature_not_found "cap_ng" "Install libcap-ng devel"
3309     fi
3310     cap_ng=no
3311   fi
3312 fi
3313
3314 ##########################################
3315 # Sound support libraries probe
3316
3317 audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/,/ /g')
3318 for drv in $audio_drv_list; do
3319     case $drv in
3320     alsa | try-alsa)
3321     if $pkg_config alsa --exists; then
3322         alsa_libs=$($pkg_config alsa --libs)
3323         alsa_cflags=$($pkg_config alsa --cflags)
3324         alsa=yes
3325         if test "$drv" = "try-alsa"; then
3326             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa/alsa/')
3327         fi
3328     else
3329         if test "$drv" = "try-alsa"; then
3330             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-alsa//')
3331         else
3332             error_exit "$drv check failed" \
3333                 "Make sure to have the $drv libs and headers installed."
3334         fi
3335     fi
3336     ;;
3337
3338     pa | try-pa)
3339     if $pkg_config libpulse --exists; then
3340         libpulse=yes
3341         pulse_libs=$($pkg_config libpulse --libs)
3342         pulse_cflags=$($pkg_config libpulse --cflags)
3343         if test "$drv" = "try-pa"; then
3344             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa/pa/')
3345         fi
3346     else
3347         if test "$drv" = "try-pa"; then
3348             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-pa//')
3349         else
3350             error_exit "$drv check failed" \
3351                 "Make sure to have the $drv libs and headers installed."
3352         fi
3353     fi
3354     ;;
3355
3356     sdl)
3357     if test "$sdl" = "no"; then
3358         error_exit "sdl not found or disabled, can not use sdl audio driver"
3359     fi
3360     ;;
3361
3362     try-sdl)
3363     if test "$sdl" = "no"; then
3364         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl//')
3365     else
3366         audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-sdl/sdl/')
3367     fi
3368     ;;
3369
3370     coreaudio)
3371       coreaudio_libs="-framework CoreAudio"
3372     ;;
3373
3374     dsound)
3375       dsound_libs="-lole32 -ldxguid"
3376       audio_win_int="yes"
3377     ;;
3378
3379     oss)
3380       oss_libs="$oss_lib"
3381     ;;
3382
3383     jack | try-jack)
3384     if $pkg_config jack --exists; then
3385         libjack=yes
3386         jack_libs=$($pkg_config jack --libs)
3387         if test "$drv" = "try-jack"; then
3388             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack/jack/')
3389         fi
3390     else
3391         if test "$drv" = "try-jack"; then
3392             audio_drv_list=$(echo "$audio_drv_list" | sed -e 's/try-jack//')
3393         else
3394             error_exit "$drv check failed" \
3395                 "Make sure to have the $drv libs and headers installed."
3396         fi
3397     fi
3398     ;;
3399
3400     *)
3401     echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
3402         error_exit "Unknown driver '$drv' selected" \
3403             "Possible drivers are: $audio_possible_drivers"
3404     }
3405     ;;
3406     esac
3407 done
3408
3409 ##########################################
3410 # BrlAPI probe
3411
3412 if test "$brlapi" != "no" ; then
3413   brlapi_libs="-lbrlapi"
3414   cat > $TMPC << EOF
3415 #include <brlapi.h>
3416 #include <stddef.h>
3417 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
3418 EOF
3419   if compile_prog "" "$brlapi_libs" ; then
3420     brlapi=yes
3421   else
3422     if test "$brlapi" = "yes" ; then
3423       feature_not_found "brlapi" "Install brlapi devel"
3424     fi
3425     brlapi=no
3426   fi
3427 fi
3428
3429 ##########################################
3430 # curl probe
3431 if test "$curl" != "no" ; then
3432   if $pkg_config libcurl --exists; then
3433     curlconfig="$pkg_config libcurl"
3434   else
3435     curlconfig=curl-config
3436   fi
3437   cat > $TMPC << EOF
3438 #include <curl/curl.h>
3439 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
3440 EOF
3441   curl_cflags=$($curlconfig --cflags 2>/dev/null)
3442   curl_libs=$($curlconfig --libs 2>/dev/null)
3443   if compile_prog "$curl_cflags" "$curl_libs" ; then
3444     curl=yes
3445   else
3446     if test "$curl" = "yes" ; then
3447       feature_not_found "curl" "Install libcurl devel"
3448     fi
3449     curl=no
3450   fi
3451 fi # test "$curl"
3452
3453 ##########################################
3454 # glib support probe
3455
3456 glib_req_ver=2.48
3457 glib_modules=gthread-2.0
3458 if test "$modules" = yes; then
3459     glib_modules="$glib_modules gmodule-export-2.0"
3460 fi
3461 if test "$plugins" = yes; then
3462     glib_modules="$glib_modules gmodule-2.0"
3463 fi
3464
3465 for i in $glib_modules; do
3466     if $pkg_config --atleast-version=$glib_req_ver $i; then
3467         glib_cflags=$($pkg_config --cflags $i)
3468         glib_libs=$($pkg_config --libs $i)
3469     else
3470         error_exit "glib-$glib_req_ver $i is required to compile QEMU"
3471     fi
3472 done
3473
3474 # This workaround is required due to a bug in pkg-config file for glib as it
3475 # doesn't define GLIB_STATIC_COMPILATION for pkg-config --static
3476
3477 if test "$static" = yes && test "$mingw32" = yes; then
3478     glib_cflags="-DGLIB_STATIC_COMPILATION $glib_cflags"
3479 fi
3480
3481 if $pkg_config --atleast-version=$glib_req_ver gio-2.0; then
3482     gio_cflags=$($pkg_config --cflags gio-2.0)
3483     gio_libs=$($pkg_config --libs gio-2.0)
3484     gdbus_codegen=$($pkg_config --variable=gdbus_codegen gio-2.0)
3485     if [ ! -x "$gdbus_codegen" ]; then
3486         gdbus_codegen=
3487     fi
3488     # Check that the libraries actually work -- Ubuntu 18.04 ships
3489     # with pkg-config --static --libs data for gio-2.0 that is missing
3490     # -lblkid and will give a link error.
3491     cat > $TMPC <<EOF
3492 #include <gio/gio.h>
3493 int main(void)
3494 {
3495     g_dbus_proxy_new_sync(0, 0, 0, 0, 0, 0, 0, 0);
3496     return 0;
3497 }
3498 EOF
3499     if compile_prog "$gio_cflags" "$gio_libs" ; then
3500         gio=yes
3501     else
3502         gio=no
3503     fi
3504 else
3505     gio=no
3506 fi
3507
3508 if $pkg_config --atleast-version=$glib_req_ver gio-unix-2.0; then
3509     gio_cflags="$gio_cflags $($pkg_config --cflags gio-unix-2.0)"
3510     gio_libs="$gio_libs $($pkg_config --libs gio-unix-2.0)"
3511 fi
3512
3513 # Sanity check that the current size_t matches the
3514 # size that glib thinks it should be. This catches
3515 # problems on multi-arch where people try to build
3516 # 32-bit QEMU while pointing at 64-bit glib headers
3517 cat > $TMPC <<EOF
3518 #include <glib.h>
3519 #include <unistd.h>
3520
3521 #define QEMU_BUILD_BUG_ON(x) \
3522   typedef char qemu_build_bug_on[(x)?-1:1] __attribute__((unused));
3523
3524 int main(void) {
3525    QEMU_BUILD_BUG_ON(sizeof(size_t) != GLIB_SIZEOF_SIZE_T);
3526    return 0;
3527 }
3528 EOF
3529
3530 if ! compile_prog "$glib_cflags" "$glib_libs" ; then
3531     error_exit "sizeof(size_t) doesn't match GLIB_SIZEOF_SIZE_T."\
3532                "You probably need to set PKG_CONFIG_LIBDIR"\
3533                "to point to the right pkg-config files for your"\
3534                "build target"
3535 fi
3536
3537 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
3538 cat > $TMPC << EOF
3539 #include <glib.h>
3540 int main(void) { return 0; }
3541 EOF
3542 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3543     if cc_has_warning_flag "-Wno-unknown-attributes"; then
3544         glib_cflags="-Wno-unknown-attributes $glib_cflags"
3545         CONFIGURE_CFLAGS="-Wno-unknown-attributes $CONFIGURE_CFLAGS"
3546     fi
3547 fi
3548
3549 # Silence clang warnings triggered by glib < 2.57.2
3550 cat > $TMPC << EOF
3551 #include <glib.h>
3552 typedef struct Foo {
3553     int i;
3554 } Foo;
3555 static void foo_free(Foo *f)
3556 {
3557     g_free(f);
3558 }
3559 G_DEFINE_AUTOPTR_CLEANUP_FUNC(Foo, foo_free);
3560 int main(void) { return 0; }
3561 EOF
3562 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
3563     if cc_has_warning_flag "-Wno-unused-function"; then
3564         glib_cflags="$glib_cflags -Wno-unused-function"
3565         CONFIGURE_CFLAGS="$CONFIGURE_CFLAGS -Wno-unused-function"
3566     fi
3567 fi
3568
3569 ##########################################
3570 # SHA command probe for modules
3571 if test "$modules" = yes; then
3572     shacmd_probe="sha1sum sha1 shasum"
3573     for c in $shacmd_probe; do
3574         if has $c; then
3575             shacmd="$c"
3576             break
3577         fi
3578     done
3579     if test "$shacmd" = ""; then
3580         error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
3581     fi
3582 fi
3583
3584 ##########################################
3585 # pthread probe
3586 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
3587
3588 pthread=no
3589 cat > $TMPC << EOF
3590 #include <pthread.h>
3591 static void *f(void *p) { return NULL; }
3592 int main(void) {
3593   pthread_t thread;
3594   pthread_create(&thread, 0, f, 0);
3595   return 0;
3596 }
3597 EOF
3598 if compile_prog "" "" ; then
3599   pthread=yes
3600 else
3601   for pthread_lib in $PTHREADLIBS_LIST; do
3602     if compile_prog "" "$pthread_lib" ; then
3603       pthread=yes
3604       found=no
3605       for lib_entry in $LIBS; do
3606         if test "$lib_entry" = "$pthread_lib"; then
3607           found=yes
3608           break
3609         fi
3610       done
3611       if test "$found" = "no"; then
3612         LIBS="$pthread_lib $LIBS"
3613       fi
3614       break
3615     fi
3616   done
3617 fi
3618
3619 if test "$mingw32" != yes && test "$pthread" = no; then
3620   error_exit "pthread check failed" \
3621       "Make sure to have the pthread libs and headers installed."
3622 fi
3623
3624 # check for pthread_setname_np with thread id
3625 pthread_setname_np_w_tid=no
3626 cat > $TMPC << EOF
3627 #include <pthread.h>
3628
3629 static void *f(void *p) { return NULL; }
3630 int main(void)
3631 {
3632     pthread_t thread;
3633     pthread_create(&thread, 0, f, 0);
3634     pthread_setname_np(thread, "QEMU");
3635     return 0;
3636 }
3637 EOF
3638 if compile_prog "" "$pthread_lib" ; then
3639   pthread_setname_np_w_tid=yes
3640 fi
3641
3642 # check for pthread_setname_np without thread id
3643 pthread_setname_np_wo_tid=no
3644 cat > $TMPC << EOF
3645 #include <pthread.h>
3646
3647 static void *f(void *p) { pthread_setname_np("QEMU"); return NULL; }
3648 int main(void)
3649 {
3650     pthread_t thread;
3651     pthread_create(&thread, 0, f, 0);
3652     return 0;
3653 }
3654 EOF
3655 if compile_prog "" "$pthread_lib" ; then
3656   pthread_setname_np_wo_tid=yes
3657 fi
3658
3659 ##########################################
3660 # rbd probe
3661 if test "$rbd" != "no" ; then
3662   cat > $TMPC <<EOF
3663 #include <stdio.h>
3664 #include <rbd/librbd.h>
3665 int main(void) {
3666     rados_t cluster;
3667     rados_create(&cluster, NULL);
3668     return 0;
3669 }
3670 EOF
3671   rbd_libs="-lrbd -lrados"
3672   if compile_prog "" "$rbd_libs" ; then
3673     rbd=yes
3674   else
3675     if test "$rbd" = "yes" ; then
3676       feature_not_found "rados block device" "Install librbd/ceph devel"
3677     fi
3678     rbd=no
3679   fi
3680 fi
3681
3682 ##########################################
3683 # libssh probe
3684 if test "$libssh" != "no" ; then
3685   if $pkg_config --exists libssh; then
3686     libssh_cflags=$($pkg_config libssh --cflags)
3687     libssh_libs=$($pkg_config libssh --libs)
3688     libssh=yes
3689   else
3690     if test "$libssh" = "yes" ; then
3691       error_exit "libssh required for --enable-libssh"
3692     fi
3693     libssh=no
3694   fi
3695 fi
3696
3697 ##########################################
3698 # Check for libssh 0.8
3699 # This is done like this instead of using the LIBSSH_VERSION_* and
3700 # SSH_VERSION_* macros because some distributions in the past shipped
3701 # snapshots of the future 0.8 from Git, and those snapshots did not
3702 # have updated version numbers (still referring to 0.7.0).
3703
3704 if test "$libssh" = "yes"; then
3705   cat > $TMPC <<EOF
3706 #include <libssh/libssh.h>
3707 int main(void) { return ssh_get_server_publickey(NULL, NULL); }
3708 EOF
3709   if compile_prog "$libssh_cflags" "$libssh_libs"; then
3710     libssh_cflags="-DHAVE_LIBSSH_0_8 $libssh_cflags"
3711   fi
3712 fi
3713
3714 ##########################################
3715 # linux-aio probe
3716
3717 if test "$linux_aio" != "no" ; then
3718   cat > $TMPC <<EOF
3719 #include <libaio.h>
3720 #include <sys/eventfd.h>
3721 #include <stddef.h>
3722 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3723 EOF
3724   if compile_prog "" "-laio" ; then
3725     linux_aio=yes
3726   else
3727     if test "$linux_aio" = "yes" ; then
3728       feature_not_found "linux AIO" "Install libaio devel"
3729     fi
3730     linux_aio=no
3731   fi
3732 fi
3733 ##########################################
3734 # linux-io-uring probe
3735
3736 if test "$linux_io_uring" != "no" ; then
3737   if $pkg_config liburing; then
3738     linux_io_uring_cflags=$($pkg_config --cflags liburing)
3739     linux_io_uring_libs=$($pkg_config --libs liburing)
3740     linux_io_uring=yes
3741   else
3742     if test "$linux_io_uring" = "yes" ; then
3743       feature_not_found "linux io_uring" "Install liburing devel"
3744     fi
3745     linux_io_uring=no
3746   fi
3747 fi
3748
3749 ##########################################
3750 # TPM emulation is only on POSIX
3751
3752 if test "$tpm" = ""; then
3753   if test "$mingw32" = "yes"; then
3754     tpm=no
3755   else
3756     tpm=yes
3757   fi
3758 elif test "$tpm" = "yes"; then
3759   if test "$mingw32" = "yes" ; then
3760     error_exit "TPM emulation only available on POSIX systems"
3761   fi
3762 fi
3763
3764 ##########################################
3765 # attr probe
3766
3767 libattr_libs=
3768 if test "$attr" != "no" ; then
3769   cat > $TMPC <<EOF
3770 #include <stdio.h>
3771 #include <sys/types.h>
3772 #ifdef CONFIG_LIBATTR
3773 #include <attr/xattr.h>
3774 #else
3775 #include <sys/xattr.h>
3776 #endif
3777 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3778 EOF
3779   if compile_prog "" "" ; then
3780     attr=yes
3781   # Older distros have <attr/xattr.h>, and need -lattr:
3782   elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3783     attr=yes
3784     libattr_libs="-lattr"
3785     libattr=yes
3786   else
3787     if test "$attr" = "yes" ; then
3788       feature_not_found "ATTR" "Install libc6 or libattr devel"
3789     fi
3790     attr=no
3791   fi
3792 fi
3793
3794 ##########################################
3795 # iovec probe
3796 cat > $TMPC <<EOF
3797 #include <sys/types.h>
3798 #include <sys/uio.h>
3799 #include <unistd.h>
3800 int main(void) { return sizeof(struct iovec); }
3801 EOF
3802 iovec=no
3803 if compile_prog "" "" ; then
3804   iovec=yes
3805 fi
3806
3807 ##########################################
3808 # preadv probe
3809 cat > $TMPC <<EOF
3810 #include <sys/types.h>
3811 #include <sys/uio.h>
3812 #include <unistd.h>
3813 int main(void) { return preadv(0, 0, 0, 0); }
3814 EOF
3815 preadv=no
3816 if compile_prog "" "" ; then
3817   preadv=yes
3818 fi
3819
3820 ##########################################
3821 # fdt probe
3822
3823 case "$fdt" in
3824   auto | enabled | internal)
3825     # Simpler to always update submodule, even if not needed.
3826     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
3827       git_submodules="${git_submodules} dtc"
3828     fi
3829     ;;
3830 esac
3831
3832 ##########################################
3833 # opengl probe (for sdl2, gtk, milkymist-tmu2)
3834
3835 gbm="no"
3836 if $pkg_config gbm; then
3837     gbm_cflags="$($pkg_config --cflags gbm)"
3838     gbm_libs="$($pkg_config --libs gbm)"
3839     gbm="yes"
3840 fi
3841
3842 if test "$opengl" != "no" ; then
3843   opengl_pkgs="epoxy gbm"
3844   if $pkg_config $opengl_pkgs; then
3845     opengl_cflags="$($pkg_config --cflags $opengl_pkgs)"
3846     opengl_libs="$($pkg_config --libs $opengl_pkgs)"
3847     opengl=yes
3848     if test "$gtk" = "yes" && $pkg_config --exists "$gtkpackage >= 3.16"; then
3849         gtk_gl="yes"
3850     fi
3851   else
3852     if test "$opengl" = "yes" ; then
3853       feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3854     fi
3855     opengl_cflags=""
3856     opengl_libs=""
3857     opengl=no
3858   fi
3859 fi
3860
3861 if test "$opengl" = "yes"; then
3862   cat > $TMPC << EOF
3863 #include <epoxy/egl.h>
3864 #ifndef EGL_MESA_image_dma_buf_export
3865 # error mesa/epoxy lacks support for dmabufs (mesa 10.6+)
3866 #endif
3867 int main(void) { return 0; }
3868 EOF
3869   if compile_prog "" "" ; then
3870     opengl_dmabuf=yes
3871   fi
3872 fi
3873
3874 if test "$opengl" = "yes" && test "$have_x11" = "yes"; then
3875   for target in $target_list; do
3876     case $target in
3877       lm32-softmmu) # milkymist-tmu2 requires X11 and OpenGL
3878         need_x11=yes
3879       ;;
3880     esac
3881   done
3882 fi
3883
3884 ##########################################
3885 # libxml2 probe
3886 if test "$libxml2" != "no" ; then
3887     if $pkg_config --exists libxml-2.0; then
3888         libxml2="yes"
3889         libxml2_cflags=$($pkg_config --cflags libxml-2.0)
3890         libxml2_libs=$($pkg_config --libs libxml-2.0)
3891     else
3892         if test "$libxml2" = "yes"; then
3893             feature_not_found "libxml2" "Install libxml2 devel"
3894         fi
3895         libxml2="no"
3896     fi
3897 fi
3898
3899 ##########################################
3900 # glusterfs probe
3901 if test "$glusterfs" != "no" ; then
3902   if $pkg_config --atleast-version=3 glusterfs-api; then
3903     glusterfs="yes"
3904     glusterfs_cflags=$($pkg_config --cflags glusterfs-api)
3905     glusterfs_libs=$($pkg_config --libs glusterfs-api)
3906     if $pkg_config --atleast-version=4 glusterfs-api; then
3907       glusterfs_xlator_opt="yes"
3908     fi
3909     if $pkg_config --atleast-version=5 glusterfs-api; then
3910       glusterfs_discard="yes"
3911     fi
3912     if $pkg_config --atleast-version=6 glusterfs-api; then
3913       glusterfs_fallocate="yes"
3914       glusterfs_zerofill="yes"
3915     fi
3916     cat > $TMPC << EOF
3917 #include <glusterfs/api/glfs.h>
3918
3919 int
3920 main(void)
3921 {
3922         /* new glfs_ftruncate() passes two additional args */
3923         return glfs_ftruncate(NULL, 0, NULL, NULL);
3924 }
3925 EOF
3926     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3927       glusterfs_ftruncate_has_stat="yes"
3928     fi
3929     cat > $TMPC << EOF
3930 #include <glusterfs/api/glfs.h>
3931
3932 /* new glfs_io_cbk() passes two additional glfs_stat structs */
3933 static void
3934 glusterfs_iocb(glfs_fd_t *fd, ssize_t ret, struct glfs_stat *prestat, struct glfs_stat *poststat, void *data)
3935 {}
3936
3937 int
3938 main(void)
3939 {
3940         glfs_io_cbk iocb = &glusterfs_iocb;
3941         iocb(NULL, 0 , NULL, NULL, NULL);
3942         return 0;
3943 }
3944 EOF
3945     if compile_prog "$glusterfs_cflags" "$glusterfs_libs" ; then
3946       glusterfs_iocb_has_stat="yes"
3947     fi
3948   else
3949     if test "$glusterfs" = "yes" ; then
3950       feature_not_found "GlusterFS backend support" \
3951           "Install glusterfs-api devel >= 3"
3952     fi
3953     glusterfs="no"
3954   fi
3955 fi
3956
3957 # Check for inotify functions when we are building linux-user
3958 # emulator.  This is done because older glibc versions don't
3959 # have syscall stubs for these implemented.  In that case we
3960 # don't provide them even if kernel supports them.
3961 #
3962 inotify=no
3963 cat > $TMPC << EOF
3964 #include <sys/inotify.h>
3965
3966 int
3967 main(void)
3968 {
3969         /* try to start inotify */
3970         return inotify_init();
3971 }
3972 EOF
3973 if compile_prog "" "" ; then
3974   inotify=yes
3975 fi
3976
3977 inotify1=no
3978 cat > $TMPC << EOF
3979 #include <sys/inotify.h>
3980
3981 int
3982 main(void)
3983 {
3984     /* try to start inotify */
3985     return inotify_init1(0);
3986 }
3987 EOF
3988 if compile_prog "" "" ; then
3989   inotify1=yes
3990 fi
3991
3992 # check if pipe2 is there
3993 pipe2=no
3994 cat > $TMPC << EOF
3995 #include <unistd.h>
3996 #include <fcntl.h>
3997
3998 int main(void)
3999 {
4000     int pipefd[2];
4001     return pipe2(pipefd, O_CLOEXEC);
4002 }
4003 EOF
4004 if compile_prog "" "" ; then
4005   pipe2=yes
4006 fi
4007
4008 # check if accept4 is there
4009 accept4=no
4010 cat > $TMPC << EOF
4011 #include <sys/socket.h>
4012 #include <stddef.h>
4013
4014 int main(void)
4015 {
4016     accept4(0, NULL, NULL, SOCK_CLOEXEC);
4017     return 0;
4018 }
4019 EOF
4020 if compile_prog "" "" ; then
4021   accept4=yes
4022 fi
4023
4024 # check if tee/splice is there. vmsplice was added same time.
4025 splice=no
4026 cat > $TMPC << EOF
4027 #include <unistd.h>
4028 #include <fcntl.h>
4029 #include <limits.h>
4030
4031 int main(void)
4032 {
4033     int len, fd = 0;
4034     len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
4035     splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
4036     return 0;
4037 }
4038 EOF
4039 if compile_prog "" "" ; then
4040   splice=yes
4041 fi
4042
4043 ##########################################
4044 # libnuma probe
4045
4046 if test "$numa" != "no" ; then
4047   cat > $TMPC << EOF
4048 #include <numa.h>
4049 int main(void) { return numa_available(); }
4050 EOF
4051
4052   if compile_prog "" "-lnuma" ; then
4053     numa=yes
4054     numa_libs="-lnuma"
4055   else
4056     if test "$numa" = "yes" ; then
4057       feature_not_found "numa" "install numactl devel"
4058     fi
4059     numa=no
4060   fi
4061 fi
4062
4063 malloc=system
4064 if test "$tcmalloc" = "yes" && test "$jemalloc" = "yes" ; then
4065     echo "ERROR: tcmalloc && jemalloc can't be used at the same time"
4066     exit 1
4067 elif test "$tcmalloc" = "yes" ; then
4068     malloc=tcmalloc
4069 elif test "$jemalloc" = "yes" ; then
4070     malloc=jemalloc
4071 fi
4072
4073 ##########################################
4074 # signalfd probe
4075 signalfd="no"
4076 cat > $TMPC << EOF
4077 #include <unistd.h>
4078 #include <sys/syscall.h>
4079 #include <signal.h>
4080 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
4081 EOF
4082
4083 if compile_prog "" "" ; then
4084   signalfd=yes
4085 fi
4086
4087 # check if optreset global is declared by <getopt.h>
4088 optreset="no"
4089 cat > $TMPC << EOF
4090 #include <getopt.h>
4091 int main(void) { return optreset; }
4092 EOF
4093
4094 if compile_prog "" "" ; then
4095   optreset=yes
4096 fi
4097
4098 # check if eventfd is supported
4099 eventfd=no
4100 cat > $TMPC << EOF
4101 #include <sys/eventfd.h>
4102
4103 int main(void)
4104 {
4105     return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
4106 }
4107 EOF
4108 if compile_prog "" "" ; then
4109   eventfd=yes
4110 fi
4111
4112 # check if memfd is supported
4113 memfd=no
4114 cat > $TMPC << EOF
4115 #include <sys/mman.h>
4116
4117 int main(void)
4118 {
4119     return memfd_create("foo", MFD_ALLOW_SEALING);
4120 }
4121 EOF
4122 if compile_prog "" "" ; then
4123   memfd=yes
4124 fi
4125
4126 # check for usbfs
4127 have_usbfs=no
4128 if test "$linux_user" = "yes"; then
4129   cat > $TMPC << EOF
4130 #include <linux/usbdevice_fs.h>
4131
4132 #ifndef USBDEVFS_GET_CAPABILITIES
4133 #error "USBDEVFS_GET_CAPABILITIES undefined"
4134 #endif
4135
4136 #ifndef USBDEVFS_DISCONNECT_CLAIM
4137 #error "USBDEVFS_DISCONNECT_CLAIM undefined"
4138 #endif
4139
4140 int main(void)
4141 {
4142     return 0;
4143 }
4144 EOF
4145   if compile_prog "" ""; then
4146     have_usbfs=yes
4147   fi
4148 fi
4149
4150 # check for fallocate
4151 fallocate=no
4152 cat > $TMPC << EOF
4153 #include <fcntl.h>
4154
4155 int main(void)
4156 {
4157     fallocate(0, 0, 0, 0);
4158     return 0;
4159 }
4160 EOF
4161 if compile_prog "" "" ; then
4162   fallocate=yes
4163 fi
4164
4165 # check for fallocate hole punching
4166 fallocate_punch_hole=no
4167 cat > $TMPC << EOF
4168 #include <fcntl.h>
4169 #include <linux/falloc.h>
4170
4171 int main(void)
4172 {
4173     fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
4174     return 0;
4175 }
4176 EOF
4177 if compile_prog "" "" ; then
4178   fallocate_punch_hole=yes
4179 fi
4180
4181 # check that fallocate supports range zeroing inside the file
4182 fallocate_zero_range=no
4183 cat > $TMPC << EOF
4184 #include <fcntl.h>
4185 #include <linux/falloc.h>
4186
4187 int main(void)
4188 {
4189     fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
4190     return 0;
4191 }
4192 EOF
4193 if compile_prog "" "" ; then
4194   fallocate_zero_range=yes
4195 fi
4196
4197 # check for posix_fallocate
4198 posix_fallocate=no
4199 cat > $TMPC << EOF
4200 #include <fcntl.h>
4201
4202 int main(void)
4203 {
4204     posix_fallocate(0, 0, 0);
4205     return 0;
4206 }
4207 EOF
4208 if compile_prog "" "" ; then
4209     posix_fallocate=yes
4210 fi
4211
4212 # check for sync_file_range
4213 sync_file_range=no
4214 cat > $TMPC << EOF
4215 #include <fcntl.h>
4216
4217 int main(void)
4218 {
4219     sync_file_range(0, 0, 0, 0);
4220     return 0;
4221 }
4222 EOF
4223 if compile_prog "" "" ; then
4224   sync_file_range=yes
4225 fi
4226
4227 # check for linux/fiemap.h and FS_IOC_FIEMAP
4228 fiemap=no
4229 cat > $TMPC << EOF
4230 #include <sys/ioctl.h>
4231 #include <linux/fs.h>
4232 #include <linux/fiemap.h>
4233
4234 int main(void)
4235 {
4236     ioctl(0, FS_IOC_FIEMAP, 0);
4237     return 0;
4238 }
4239 EOF
4240 if compile_prog "" "" ; then
4241   fiemap=yes
4242 fi
4243
4244 # check for dup3
4245 dup3=no
4246 cat > $TMPC << EOF
4247 #include <unistd.h>
4248
4249 int main(void)
4250 {
4251     dup3(0, 0, 0);
4252     return 0;
4253 }
4254 EOF
4255 if compile_prog "" "" ; then
4256   dup3=yes
4257 fi
4258
4259 # check for ppoll support
4260 ppoll=no
4261 cat > $TMPC << EOF
4262 #include <poll.h>
4263
4264 int main(void)
4265 {
4266     struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
4267     ppoll(&pfd, 1, 0, 0);
4268     return 0;
4269 }
4270 EOF
4271 if compile_prog "" "" ; then
4272   ppoll=yes
4273 fi
4274
4275 # check for prctl(PR_SET_TIMERSLACK , ... ) support
4276 prctl_pr_set_timerslack=no
4277 cat > $TMPC << EOF
4278 #include <sys/prctl.h>
4279
4280 int main(void)
4281 {
4282     prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
4283     return 0;
4284 }
4285 EOF
4286 if compile_prog "" "" ; then
4287   prctl_pr_set_timerslack=yes
4288 fi
4289
4290 # check for epoll support
4291 epoll=no
4292 cat > $TMPC << EOF
4293 #include <sys/epoll.h>
4294
4295 int main(void)
4296 {
4297     epoll_create(0);
4298     return 0;
4299 }
4300 EOF
4301 if compile_prog "" "" ; then
4302   epoll=yes
4303 fi
4304
4305 # epoll_create1 is a later addition
4306 # so we must check separately for its presence
4307 epoll_create1=no
4308 cat > $TMPC << EOF
4309 #include <sys/epoll.h>
4310
4311 int main(void)
4312 {
4313     /* Note that we use epoll_create1 as a value, not as
4314      * a function being called. This is necessary so that on
4315      * old SPARC glibc versions where the function was present in
4316      * the library but not declared in the header file we will
4317      * fail the configure check. (Otherwise we will get a compiler
4318      * warning but not an error, and will proceed to fail the
4319      * qemu compile where we compile with -Werror.)
4320      */
4321     return (int)(uintptr_t)&epoll_create1;
4322 }
4323 EOF
4324 if compile_prog "" "" ; then
4325   epoll_create1=yes
4326 fi
4327
4328 # check for sendfile support
4329 sendfile=no
4330 cat > $TMPC << EOF
4331 #include <sys/sendfile.h>
4332
4333 int main(void)
4334 {
4335     return sendfile(0, 0, 0, 0);
4336 }
4337 EOF
4338 if compile_prog "" "" ; then
4339   sendfile=yes
4340 fi
4341
4342 # check for timerfd support (glibc 2.8 and newer)
4343 timerfd=no
4344 cat > $TMPC << EOF
4345 #include <sys/timerfd.h>
4346
4347 int main(void)
4348 {
4349     return(timerfd_create(CLOCK_REALTIME, 0));
4350 }
4351 EOF
4352 if compile_prog "" "" ; then
4353   timerfd=yes
4354 fi
4355
4356 # check for setns and unshare support
4357 setns=no
4358 cat > $TMPC << EOF
4359 #include <sched.h>
4360
4361 int main(void)
4362 {
4363     int ret;
4364     ret = setns(0, 0);
4365     ret = unshare(0);
4366     return ret;
4367 }
4368 EOF
4369 if compile_prog "" "" ; then
4370   setns=yes
4371 fi
4372
4373 # clock_adjtime probe
4374 clock_adjtime=no
4375 cat > $TMPC <<EOF
4376 #include <time.h>
4377
4378 int main(void)
4379 {
4380     return clock_adjtime(0, 0);
4381 }
4382 EOF
4383 clock_adjtime=no
4384 if compile_prog "" "" ; then
4385   clock_adjtime=yes
4386 fi
4387
4388 # syncfs probe
4389 syncfs=no
4390 cat > $TMPC <<EOF
4391 #include <unistd.h>
4392
4393 int main(void)
4394 {
4395     return syncfs(0);
4396 }
4397 EOF
4398 syncfs=no
4399 if compile_prog "" "" ; then
4400   syncfs=yes
4401 fi
4402
4403 # Search for bswap_32 function
4404 byteswap_h=no
4405 cat > $TMPC << EOF
4406 #include <byteswap.h>
4407 int main(void) { return bswap_32(0); }
4408 EOF
4409 if compile_prog "" "" ; then
4410   byteswap_h=yes
4411 fi
4412
4413 # Search for bswap32 function
4414 bswap_h=no
4415 cat > $TMPC << EOF
4416 #include <sys/endian.h>
4417 #include <sys/types.h>
4418 #include <machine/bswap.h>
4419 int main(void) { return bswap32(0); }
4420 EOF
4421 if compile_prog "" "" ; then
4422   bswap_h=yes
4423 fi
4424
4425 ##########################################
4426 # Do we have libiscsi >= 1.9.0
4427 if test "$libiscsi" != "no" ; then
4428   if $pkg_config --atleast-version=1.9.0 libiscsi; then
4429     libiscsi="yes"
4430     libiscsi_cflags=$($pkg_config --cflags libiscsi)
4431     libiscsi_libs=$($pkg_config --libs libiscsi)
4432   else
4433     if test "$libiscsi" = "yes" ; then
4434       feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
4435     fi
4436     libiscsi="no"
4437   fi
4438 fi
4439
4440 ##########################################
4441 # Do we need librt
4442 # uClibc provides 2 versions of clock_gettime(), one with realtime
4443 # support and one without. This means that the clock_gettime() don't
4444 # need -lrt. We still need it for timer_create() so we check for this
4445 # function in addition.
4446 cat > $TMPC <<EOF
4447 #include <signal.h>
4448 #include <time.h>
4449 int main(void) {
4450   timer_create(CLOCK_REALTIME, NULL, NULL);
4451   return clock_gettime(CLOCK_REALTIME, NULL);
4452 }
4453 EOF
4454
4455 if compile_prog "" "" ; then
4456   :
4457 # we need pthread for static linking. use previous pthread test result
4458 elif compile_prog "" "$pthread_lib -lrt" ; then
4459   LIBS="$LIBS -lrt"
4460 fi
4461
4462 # Check whether we have openpty() in either libc or libutil
4463 cat > $TMPC << EOF
4464 extern int openpty(int *am, int *as, char *name, void *termp, void *winp);
4465 int main(void) { return openpty(0, 0, 0, 0, 0); }
4466 EOF
4467
4468 have_openpty="no"
4469 if compile_prog "" "" ; then
4470   have_openpty="yes"
4471 else
4472   if compile_prog "" "-lutil" ; then
4473     have_openpty="yes"
4474   fi
4475 fi
4476
4477 ##########################################
4478 # spice probe
4479 if test "$spice" != "no" ; then
4480   cat > $TMPC << EOF
4481 #include <spice.h>
4482 int main(void) { spice_server_new(); return 0; }
4483 EOF
4484   spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
4485   spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
4486   if $pkg_config --atleast-version=0.12.5 spice-server && \
4487      $pkg_config --atleast-version=0.12.3 spice-protocol && \
4488      compile_prog "$spice_cflags" "$spice_libs" ; then
4489     spice="yes"
4490   else
4491     if test "$spice" = "yes" ; then
4492       feature_not_found "spice" \
4493           "Install spice-server(>=0.12.5) and spice-protocol(>=0.12.3) devel"
4494     fi
4495     spice="no"
4496   fi
4497 fi
4498
4499 # check for smartcard support
4500 if test "$smartcard" != "no"; then
4501     if $pkg_config --atleast-version=2.5.1 libcacard; then
4502         libcacard_cflags=$($pkg_config --cflags libcacard)
4503         libcacard_libs=$($pkg_config --libs libcacard)
4504         smartcard="yes"
4505     else
4506         if test "$smartcard" = "yes"; then
4507             feature_not_found "smartcard" "Install libcacard devel"
4508         fi
4509         smartcard="no"
4510     fi
4511 fi
4512
4513 # check for libusb
4514 if test "$libusb" != "no" ; then
4515     if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
4516         libusb="yes"
4517         libusb_cflags=$($pkg_config --cflags libusb-1.0)
4518         libusb_libs=$($pkg_config --libs libusb-1.0)
4519     else
4520         if test "$libusb" = "yes"; then
4521             feature_not_found "libusb" "Install libusb devel >= 1.0.13"
4522         fi
4523         libusb="no"
4524     fi
4525 fi
4526
4527 # check for usbredirparser for usb network redirection support
4528 if test "$usb_redir" != "no" ; then
4529     if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
4530         usb_redir="yes"
4531         usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
4532         usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
4533     else
4534         if test "$usb_redir" = "yes"; then
4535             feature_not_found "usb-redir" "Install usbredir devel"
4536         fi
4537         usb_redir="no"
4538     fi
4539 fi
4540
4541 ##########################################
4542 # check if we have VSS SDK headers for win
4543
4544 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4545         test "$vss_win32_sdk" != "no" ; then
4546   case "$vss_win32_sdk" in
4547     "")   vss_win32_include="-isystem $source_path" ;;
4548     *\ *) # The SDK is installed in "Program Files" by default, but we cannot
4549           # handle path with spaces. So we symlink the headers into ".sdk/vss".
4550           vss_win32_include="-isystem $source_path/.sdk/vss"
4551           symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
4552           ;;
4553     *)    vss_win32_include="-isystem $vss_win32_sdk"
4554   esac
4555   cat > $TMPC << EOF
4556 #define __MIDL_user_allocate_free_DEFINED__
4557 #include <inc/win2003/vss.h>
4558 int main(void) { return VSS_CTX_BACKUP; }
4559 EOF
4560   if compile_prog "$vss_win32_include" "" ; then
4561     guest_agent_with_vss="yes"
4562     QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
4563     libs_qga="-lole32 -loleaut32 -lshlwapi -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
4564     qga_vss_provider="qga/vss-win32/qga-vss.dll qga/vss-win32/qga-vss.tlb"
4565   else
4566     if test "$vss_win32_sdk" != "" ; then
4567       echo "ERROR: Please download and install Microsoft VSS SDK:"
4568       echo "ERROR:   http://www.microsoft.com/en-us/download/details.aspx?id=23490"
4569       echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
4570       echo "ERROR:   scripts/extract-vsssdk-headers setup.exe"
4571       echo "ERROR: The headers are extracted in the directory \`inc'."
4572       feature_not_found "VSS support"
4573     fi
4574     guest_agent_with_vss="no"
4575   fi
4576 fi
4577
4578 ##########################################
4579 # lookup Windows platform SDK (if not specified)
4580 # The SDK is needed only to build .tlb (type library) file of guest agent
4581 # VSS provider from the source. It is usually unnecessary because the
4582 # pre-compiled .tlb file is included.
4583
4584 if test "$mingw32" = "yes" && test "$guest_agent" != "no" && \
4585         test "$guest_agent_with_vss" = "yes" ; then
4586   if test -z "$win_sdk"; then
4587     programfiles="$PROGRAMFILES"
4588     test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
4589     if test -n "$programfiles"; then
4590       win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
4591     else
4592       feature_not_found "Windows SDK"
4593     fi
4594   elif test "$win_sdk" = "no"; then
4595     win_sdk=""
4596   fi
4597 fi
4598
4599 ##########################################
4600 # check if mingw environment provides a recent ntddscsi.h
4601 if test "$mingw32" = "yes" && test "$guest_agent" != "no"; then
4602   cat > $TMPC << EOF
4603 #include <windows.h>
4604 #include <ntddscsi.h>
4605 int main(void) {
4606 #if !defined(IOCTL_SCSI_GET_ADDRESS)
4607 #error Missing required ioctl definitions
4608 #endif
4609   SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
4610   return addr.Lun;
4611 }
4612 EOF
4613   if compile_prog "" "" ; then
4614     guest_agent_ntddscsi=yes
4615     libs_qga="-lsetupapi -lcfgmgr32 $libs_qga"
4616   fi
4617 fi
4618
4619 ##########################################
4620 # virgl renderer probe
4621
4622 if test "$virglrenderer" != "no" ; then
4623   cat > $TMPC << EOF
4624 #include <virglrenderer.h>
4625 int main(void) { virgl_renderer_poll(); return 0; }
4626 EOF
4627   virgl_cflags=$($pkg_config --cflags virglrenderer 2>/dev/null)
4628   virgl_libs=$($pkg_config --libs virglrenderer 2>/dev/null)
4629   virgl_version=$($pkg_config --modversion virglrenderer 2>/dev/null)
4630   if $pkg_config virglrenderer >/dev/null 2>&1 && \
4631      compile_prog "$virgl_cflags" "$virgl_libs" ; then
4632     virglrenderer="yes"
4633   else
4634     if test "$virglrenderer" = "yes" ; then
4635       feature_not_found "virglrenderer"
4636     fi
4637     virglrenderer="no"
4638   fi
4639 fi
4640
4641 ##########################################
4642 # capstone
4643
4644 case "$capstone" in
4645   auto | enabled | internal)
4646     # Simpler to always update submodule, even if not needed.
4647     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
4648       git_submodules="${git_submodules} capstone"
4649     fi
4650     ;;
4651 esac
4652
4653 ##########################################
4654 # check if we have fdatasync
4655
4656 fdatasync=no
4657 cat > $TMPC << EOF
4658 #include <unistd.h>
4659 int main(void) {
4660 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
4661 return fdatasync(0);
4662 #else
4663 #error Not supported
4664 #endif
4665 }
4666 EOF
4667 if compile_prog "" "" ; then
4668     fdatasync=yes
4669 fi
4670
4671 ##########################################
4672 # check if we have madvise
4673
4674 madvise=no
4675 cat > $TMPC << EOF
4676 #include <sys/types.h>
4677 #include <sys/mman.h>
4678 #include <stddef.h>
4679 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
4680 EOF
4681 if compile_prog "" "" ; then
4682     madvise=yes
4683 fi
4684
4685 ##########################################
4686 # check if we have posix_madvise
4687
4688 posix_madvise=no
4689 cat > $TMPC << EOF
4690 #include <sys/mman.h>
4691 #include <stddef.h>
4692 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
4693 EOF
4694 if compile_prog "" "" ; then
4695     posix_madvise=yes
4696 fi
4697
4698 ##########################################
4699 # check if we have posix_memalign()
4700
4701 posix_memalign=no
4702 cat > $TMPC << EOF
4703 #include <stdlib.h>
4704 int main(void) {
4705     void *p;
4706     return posix_memalign(&p, 8, 8);
4707 }
4708 EOF
4709 if compile_prog "" "" ; then
4710     posix_memalign=yes
4711 fi
4712
4713 ##########################################
4714 # check if we have posix_syslog
4715
4716 posix_syslog=no
4717 cat > $TMPC << EOF
4718 #include <syslog.h>
4719 int main(void) { openlog("qemu", LOG_PID, LOG_DAEMON); syslog(LOG_INFO, "configure"); return 0; }
4720 EOF
4721 if compile_prog "" "" ; then
4722     posix_syslog=yes
4723 fi
4724
4725 ##########################################
4726 # check if we have sem_timedwait
4727
4728 sem_timedwait=no
4729 cat > $TMPC << EOF
4730 #include <semaphore.h>
4731 int main(void) { sem_t s; struct timespec t = {0}; return sem_timedwait(&s, &t); }
4732 EOF
4733 if compile_prog "" "" ; then
4734     sem_timedwait=yes
4735 fi
4736
4737 ##########################################
4738 # check if we have strchrnul
4739
4740 strchrnul=no
4741 cat > $TMPC << EOF
4742 #include <string.h>
4743 int main(void);
4744 // Use a haystack that the compiler shouldn't be able to constant fold
4745 char *haystack = (char*)&main;
4746 int main(void) { return strchrnul(haystack, 'x') != &haystack[6]; }
4747 EOF
4748 if compile_prog "" "" ; then
4749     strchrnul=yes
4750 fi
4751
4752 #########################################
4753 # check if we have st_atim
4754
4755 st_atim=no
4756 cat > $TMPC << EOF
4757 #include <sys/stat.h>
4758 #include <stddef.h>
4759 int main(void) { return offsetof(struct stat, st_atim); }
4760 EOF
4761 if compile_prog "" "" ; then
4762     st_atim=yes
4763 fi
4764
4765 ##########################################
4766 # check if trace backend exists
4767
4768 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends  > /dev/null 2> /dev/null
4769 if test "$?" -ne 0 ; then
4770   error_exit "invalid trace backends" \
4771       "Please choose supported trace backends."
4772 fi
4773
4774 ##########################################
4775 # For 'ust' backend, test if ust headers are present
4776 if have_backend "ust"; then
4777   cat > $TMPC << EOF
4778 #include <lttng/tracepoint.h>
4779 int main(void) { return 0; }
4780 EOF
4781   if compile_prog "" "-Wl,--no-as-needed -ldl" ; then
4782     if $pkg_config lttng-ust --exists; then
4783       lttng_ust_libs=$($pkg_config --libs lttng-ust)
4784     else
4785       lttng_ust_libs="-llttng-ust -ldl"
4786     fi
4787     if $pkg_config liburcu-bp --exists; then
4788       urcu_bp_libs=$($pkg_config --libs liburcu-bp)
4789     else
4790       urcu_bp_libs="-lurcu-bp"
4791     fi
4792   else
4793     error_exit "Trace backend 'ust' missing lttng-ust header files"
4794   fi
4795 fi
4796
4797 ##########################################
4798 # For 'dtrace' backend, test if 'dtrace' command is present
4799 if have_backend "dtrace"; then
4800   if ! has 'dtrace' ; then
4801     error_exit "dtrace command is not found in PATH $PATH"
4802   fi
4803   trace_backend_stap="no"
4804   if has 'stap' ; then
4805     trace_backend_stap="yes"
4806
4807     # Workaround to avoid dtrace(1) producing a file with 'hidden' symbol
4808     # visibility. Define STAP_SDT_V2 to produce 'default' symbol visibility
4809     # instead. QEMU --enable-modules depends on this because the SystemTap
4810     # semaphores are linked into the main binary and not the module's shared
4811     # object.
4812     QEMU_CFLAGS="$QEMU_CFLAGS -DSTAP_SDT_V2"
4813   fi
4814 fi
4815
4816 ##########################################
4817 # check and set a backend for coroutine
4818
4819 # We prefer ucontext, but it's not always possible. The fallback
4820 # is sigcontext. On Windows the only valid backend is the Windows
4821 # specific one.
4822
4823 ucontext_works=no
4824 if test "$darwin" != "yes"; then
4825   cat > $TMPC << EOF
4826 #include <ucontext.h>
4827 #ifdef __stub_makecontext
4828 #error Ignoring glibc stub makecontext which will always fail
4829 #endif
4830 int main(void) { makecontext(0, 0, 0); return 0; }
4831 EOF
4832   if compile_prog "" "" ; then
4833     ucontext_works=yes
4834   fi
4835 fi
4836
4837 if test "$coroutine" = ""; then
4838   if test "$mingw32" = "yes"; then
4839     coroutine=win32
4840   elif test "$ucontext_works" = "yes"; then
4841     coroutine=ucontext
4842   else
4843     coroutine=sigaltstack
4844   fi
4845 else
4846   case $coroutine in
4847   windows)
4848     if test "$mingw32" != "yes"; then
4849       error_exit "'windows' coroutine backend only valid for Windows"
4850     fi
4851     # Unfortunately the user visible backend name doesn't match the
4852     # coroutine-*.c filename for this case, so we have to adjust it here.
4853     coroutine=win32
4854     ;;
4855   ucontext)
4856     if test "$ucontext_works" != "yes"; then
4857       feature_not_found "ucontext"
4858     fi
4859     ;;
4860   sigaltstack)
4861     if test "$mingw32" = "yes"; then
4862       error_exit "only the 'windows' coroutine backend is valid for Windows"
4863     fi
4864     ;;
4865   *)
4866     error_exit "unknown coroutine backend $coroutine"
4867     ;;
4868   esac
4869 fi
4870
4871 if test "$coroutine_pool" = ""; then
4872   coroutine_pool=yes
4873 fi
4874
4875 if test "$debug_stack_usage" = "yes"; then
4876   if test "$coroutine_pool" = "yes"; then
4877     echo "WARN: disabling coroutine pool for stack usage debugging"
4878     coroutine_pool=no
4879   fi
4880 fi
4881
4882 ##################################################
4883 # SafeStack
4884
4885
4886 if test "$safe_stack" = "yes"; then
4887 cat > $TMPC << EOF
4888 int main(int argc, char *argv[])
4889 {
4890 #if ! __has_feature(safe_stack)
4891 #error SafeStack Disabled
4892 #endif
4893     return 0;
4894 }
4895 EOF
4896   flag="-fsanitize=safe-stack"
4897   # Check that safe-stack is supported and enabled.
4898   if compile_prog "-Werror $flag" "$flag"; then
4899     # Flag needed both at compilation and at linking
4900     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4901     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4902   else
4903     error_exit "SafeStack not supported by your compiler"
4904   fi
4905   if test "$coroutine" != "ucontext"; then
4906     error_exit "SafeStack is only supported by the coroutine backend ucontext"
4907   fi
4908 else
4909 cat > $TMPC << EOF
4910 int main(int argc, char *argv[])
4911 {
4912 #if defined(__has_feature)
4913 #if __has_feature(safe_stack)
4914 #error SafeStack Enabled
4915 #endif
4916 #endif
4917     return 0;
4918 }
4919 EOF
4920 if test "$safe_stack" = "no"; then
4921   # Make sure that safe-stack is disabled
4922   if ! compile_prog "-Werror" ""; then
4923     # SafeStack was already enabled, try to explicitly remove the feature
4924     flag="-fno-sanitize=safe-stack"
4925     if ! compile_prog "-Werror $flag" "$flag"; then
4926       error_exit "Configure cannot disable SafeStack"
4927     fi
4928     QEMU_CFLAGS="$QEMU_CFLAGS $flag"
4929     QEMU_LDFLAGS="$QEMU_LDFLAGS $flag"
4930   fi
4931 else # "$safe_stack" = ""
4932   # Set safe_stack to yes or no based on pre-existing flags
4933   if compile_prog "-Werror" ""; then
4934     safe_stack="no"
4935   else
4936     safe_stack="yes"
4937     if test "$coroutine" != "ucontext"; then
4938       error_exit "SafeStack is only supported by the coroutine backend ucontext"
4939     fi
4940   fi
4941 fi
4942 fi
4943
4944 ##########################################
4945 # check if we have open_by_handle_at
4946
4947 open_by_handle_at=no
4948 cat > $TMPC << EOF
4949 #include <fcntl.h>
4950 #if !defined(AT_EMPTY_PATH)
4951 # error missing definition
4952 #else
4953 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4954 #endif
4955 EOF
4956 if compile_prog "" "" ; then
4957     open_by_handle_at=yes
4958 fi
4959
4960 ########################################
4961 # check if we have linux/magic.h
4962
4963 linux_magic_h=no
4964 cat > $TMPC << EOF
4965 #include <linux/magic.h>
4966 int main(void) {
4967   return 0;
4968 }
4969 EOF
4970 if compile_prog "" "" ; then
4971     linux_magic_h=yes
4972 fi
4973
4974 ########################################
4975 # check if we have valgrind/valgrind.h
4976
4977 valgrind_h=no
4978 cat > $TMPC << EOF
4979 #include <valgrind/valgrind.h>
4980 int main(void) {
4981   return 0;
4982 }
4983 EOF
4984 if compile_prog "" "" ; then
4985     valgrind_h=yes
4986 fi
4987
4988 ########################################
4989 # check if environ is declared
4990
4991 has_environ=no
4992 cat > $TMPC << EOF
4993 #include <unistd.h>
4994 int main(void) {
4995     environ = 0;
4996     return 0;
4997 }
4998 EOF
4999 if compile_prog "" "" ; then
5000     has_environ=yes
5001 fi
5002
5003 ########################################
5004 # check if cpuid.h is usable.
5005
5006 cat > $TMPC << EOF
5007 #include <cpuid.h>
5008 int main(void) {
5009     unsigned a, b, c, d;
5010     int max = __get_cpuid_max(0, 0);
5011
5012     if (max >= 1) {
5013         __cpuid(1, a, b, c, d);
5014     }
5015
5016     if (max >= 7) {
5017         __cpuid_count(7, 0, a, b, c, d);
5018     }
5019
5020     return 0;
5021 }
5022 EOF
5023 if compile_prog "" "" ; then
5024     cpuid_h=yes
5025 fi
5026
5027 ##########################################
5028 # avx2 optimization requirement check
5029 #
5030 # There is no point enabling this if cpuid.h is not usable,
5031 # since we won't be able to select the new routines.
5032
5033 if test "$cpuid_h" = "yes" && test "$avx2_opt" != "no"; then
5034   cat > $TMPC << EOF
5035 #pragma GCC push_options
5036 #pragma GCC target("avx2")
5037 #include <cpuid.h>
5038 #include <immintrin.h>
5039 static int bar(void *a) {
5040     __m256i x = *(__m256i *)a;
5041     return _mm256_testz_si256(x, x);
5042 }
5043 int main(int argc, char *argv[]) { return bar(argv[0]); }
5044 EOF
5045   if compile_object "" ; then
5046     avx2_opt="yes"
5047   else
5048     avx2_opt="no"
5049   fi
5050 fi
5051
5052 ##########################################
5053 # avx512f optimization requirement check
5054 #
5055 # There is no point enabling this if cpuid.h is not usable,
5056 # since we won't be able to select the new routines.
5057 # by default, it is turned off.
5058 # if user explicitly want to enable it, check environment
5059
5060 if test "$cpuid_h" = "yes" && test "$avx512f_opt" = "yes"; then
5061   cat > $TMPC << EOF
5062 #pragma GCC push_options
5063 #pragma GCC target("avx512f")
5064 #include <cpuid.h>
5065 #include <immintrin.h>
5066 static int bar(void *a) {
5067     __m512i x = *(__m512i *)a;
5068     return _mm512_test_epi64_mask(x, x);
5069 }
5070 int main(int argc, char *argv[])
5071 {
5072         return bar(argv[0]);
5073 }
5074 EOF
5075   if ! compile_object "" ; then
5076     avx512f_opt="no"
5077   fi
5078 else
5079   avx512f_opt="no"
5080 fi
5081
5082 ########################################
5083 # check if __[u]int128_t is usable.
5084
5085 int128=no
5086 cat > $TMPC << EOF
5087 __int128_t a;
5088 __uint128_t b;
5089 int main (void) {
5090   a = a + b;
5091   b = a * b;
5092   a = a * a;
5093   return 0;
5094 }
5095 EOF
5096 if compile_prog "" "" ; then
5097     int128=yes
5098 fi
5099
5100 #########################################
5101 # See if 128-bit atomic operations are supported.
5102
5103 atomic128=no
5104 if test "$int128" = "yes"; then
5105   cat > $TMPC << EOF
5106 int main(void)
5107 {
5108   unsigned __int128 x = 0, y = 0;
5109   y = __atomic_load_16(&x, 0);
5110   __atomic_store_16(&x, y, 0);
5111   __atomic_compare_exchange_16(&x, &y, x, 0, 0, 0);
5112   return 0;
5113 }
5114 EOF
5115   if compile_prog "" "" ; then
5116     atomic128=yes
5117   fi
5118 fi
5119
5120 cmpxchg128=no
5121 if test "$int128" = yes && test "$atomic128" = no; then
5122   cat > $TMPC << EOF
5123 int main(void)
5124 {
5125   unsigned __int128 x = 0, y = 0;
5126   __sync_val_compare_and_swap_16(&x, y, x);
5127   return 0;
5128 }
5129 EOF
5130   if compile_prog "" "" ; then
5131     cmpxchg128=yes
5132   fi
5133 fi
5134
5135 #########################################
5136 # See if 64-bit atomic operations are supported.
5137 # Note that without __atomic builtins, we can only
5138 # assume atomic loads/stores max at pointer size.
5139
5140 cat > $TMPC << EOF
5141 #include <stdint.h>
5142 int main(void)
5143 {
5144   uint64_t x = 0, y = 0;
5145 #ifdef __ATOMIC_RELAXED
5146   y = __atomic_load_n(&x, __ATOMIC_RELAXED);
5147   __atomic_store_n(&x, y, __ATOMIC_RELAXED);
5148   __atomic_compare_exchange_n(&x, &y, x, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED);
5149   __atomic_exchange_n(&x, y, __ATOMIC_RELAXED);
5150   __atomic_fetch_add(&x, y, __ATOMIC_RELAXED);
5151 #else
5152   typedef char is_host64[sizeof(void *) >= sizeof(uint64_t) ? 1 : -1];
5153   __sync_lock_test_and_set(&x, y);
5154   __sync_val_compare_and_swap(&x, y, 0);
5155   __sync_fetch_and_add(&x, y);
5156 #endif
5157   return 0;
5158 }
5159 EOF
5160 if compile_prog "" "" ; then
5161   atomic64=yes
5162 fi
5163
5164 #########################################
5165 # See if --dynamic-list is supported by the linker
5166 ld_dynamic_list="no"
5167 if test "$static" = "no" ; then
5168     cat > $TMPTXT <<EOF
5169 {
5170   foo;
5171 };
5172 EOF
5173
5174     cat > $TMPC <<EOF
5175 #include <stdio.h>
5176 void foo(void);
5177
5178 void foo(void)
5179 {
5180   printf("foo\n");
5181 }
5182
5183 int main(void)
5184 {
5185   foo();
5186   return 0;
5187 }
5188 EOF
5189
5190     if compile_prog "" "-Wl,--dynamic-list=$TMPTXT" ; then
5191         ld_dynamic_list="yes"
5192     fi
5193 fi
5194
5195 #########################################
5196 # See if -exported_symbols_list is supported by the linker
5197
5198 ld_exported_symbols_list="no"
5199 if test "$static" = "no" ; then
5200     cat > $TMPTXT <<EOF
5201   _foo
5202 EOF
5203
5204     if compile_prog "" "-Wl,-exported_symbols_list,$TMPTXT" ; then
5205         ld_exported_symbols_list="yes"
5206     fi
5207 fi
5208
5209 if  test "$plugins" = "yes" &&
5210     test "$ld_dynamic_list" = "no" &&
5211     test "$ld_exported_symbols_list" = "no" ; then
5212   error_exit \
5213       "Plugin support requires dynamic linking and specifying a set of symbols " \
5214       "that are exported to plugins. Unfortunately your linker doesn't " \
5215       "support the flag (--dynamic-list or -exported_symbols_list) used " \
5216       "for this purpose. You can't build with --static."
5217 fi
5218
5219 ########################################
5220 # See if __attribute__((alias)) is supported.
5221 # This false for Xcode 9, but has been remedied for Xcode 10.
5222 # Unfortunately, travis uses Xcode 9 by default.
5223
5224 attralias=no
5225 cat > $TMPC << EOF
5226 int x = 1;
5227 extern const int y __attribute__((alias("x")));
5228 int main(void) { return 0; }
5229 EOF
5230 if compile_prog "" "" ; then
5231     attralias=yes
5232 fi
5233
5234 ########################################
5235 # check if getauxval is available.
5236
5237 getauxval=no
5238 cat > $TMPC << EOF
5239 #include <sys/auxv.h>
5240 int main(void) {
5241   return getauxval(AT_HWCAP) == 0;
5242 }
5243 EOF
5244 if compile_prog "" "" ; then
5245     getauxval=yes
5246 fi
5247
5248 ########################################
5249 # check if ccache is interfering with
5250 # semantic analysis of macros
5251
5252 unset CCACHE_CPP2
5253 ccache_cpp2=no
5254 cat > $TMPC << EOF
5255 static const int Z = 1;
5256 #define fn() ({ Z; })
5257 #define TAUT(X) ((X) == Z)
5258 #define PAREN(X, Y) (X == Y)
5259 #define ID(X) (X)
5260 int main(int argc, char *argv[])
5261 {
5262     int x = 0, y = 0;
5263     x = ID(x);
5264     x = fn();
5265     fn();
5266     if (PAREN(x, y)) return 0;
5267     if (TAUT(Z)) return 0;
5268     return 0;
5269 }
5270 EOF
5271
5272 if ! compile_object "-Werror"; then
5273     ccache_cpp2=yes
5274 fi
5275
5276 #################################################
5277 # clang does not support glibc + FORTIFY_SOURCE.
5278
5279 if test "$fortify_source" != "no"; then
5280   if echo | $cc -dM -E - | grep __clang__ > /dev/null 2>&1 ; then
5281     fortify_source="no";
5282   elif test -n "$cxx" && has $cxx &&
5283        echo | $cxx -dM -E - | grep __clang__ >/dev/null 2>&1 ; then
5284     fortify_source="no";
5285   else
5286     fortify_source="yes"
5287   fi
5288 fi
5289
5290 ###############################################
5291 # Check if copy_file_range is provided by glibc
5292 have_copy_file_range=no
5293 cat > $TMPC << EOF
5294 #include <unistd.h>
5295 int main(void) {
5296   copy_file_range(0, NULL, 0, NULL, 0, 0);
5297   return 0;
5298 }
5299 EOF
5300 if compile_prog "" "" ; then
5301     have_copy_file_range=yes
5302 fi
5303
5304 ##########################################
5305 # check if struct fsxattr is available via linux/fs.h
5306
5307 have_fsxattr=no
5308 cat > $TMPC << EOF
5309 #include <linux/fs.h>
5310 struct fsxattr foo;
5311 int main(void) {
5312   return 0;
5313 }
5314 EOF
5315 if compile_prog "" "" ; then
5316     have_fsxattr=yes
5317 fi
5318
5319 ##########################################
5320 # check for usable membarrier system call
5321 if test "$membarrier" = "yes"; then
5322     have_membarrier=no
5323     if test "$mingw32" = "yes" ; then
5324         have_membarrier=yes
5325     elif test "$linux" = "yes" ; then
5326         cat > $TMPC << EOF
5327     #include <linux/membarrier.h>
5328     #include <sys/syscall.h>
5329     #include <unistd.h>
5330     #include <stdlib.h>
5331     int main(void) {
5332         syscall(__NR_membarrier, MEMBARRIER_CMD_QUERY, 0);
5333         syscall(__NR_membarrier, MEMBARRIER_CMD_SHARED, 0);
5334         exit(0);
5335     }
5336 EOF
5337         if compile_prog "" "" ; then
5338             have_membarrier=yes
5339         fi
5340     fi
5341     if test "$have_membarrier" = "no"; then
5342       feature_not_found "membarrier" "membarrier system call not available"
5343     fi
5344 else
5345     # Do not enable it by default even for Mingw32, because it doesn't
5346     # work on Wine.
5347     membarrier=no
5348 fi
5349
5350 ##########################################
5351 # check if rtnetlink.h exists and is useful
5352 have_rtnetlink=no
5353 cat > $TMPC << EOF
5354 #include <linux/rtnetlink.h>
5355 int main(void) {
5356   return IFLA_PROTO_DOWN;
5357 }
5358 EOF
5359 if compile_prog "" "" ; then
5360     have_rtnetlink=yes
5361 fi
5362
5363 ##########################################
5364 # check for usable AF_VSOCK environment
5365 have_af_vsock=no
5366 cat > $TMPC << EOF
5367 #include <errno.h>
5368 #include <sys/types.h>
5369 #include <sys/socket.h>
5370 #if !defined(AF_VSOCK)
5371 # error missing AF_VSOCK flag
5372 #endif
5373 #include <linux/vm_sockets.h>
5374 int main(void) {
5375     int sock, ret;
5376     struct sockaddr_vm svm;
5377     socklen_t len = sizeof(svm);
5378     sock = socket(AF_VSOCK, SOCK_STREAM, 0);
5379     ret = getpeername(sock, (struct sockaddr *)&svm, &len);
5380     if ((ret == -1) && (errno == ENOTCONN)) {
5381         return 0;
5382     }
5383     return -1;
5384 }
5385 EOF
5386 if compile_prog "" "" ; then
5387     have_af_vsock=yes
5388 fi
5389
5390 ##########################################
5391 # check for usable AF_ALG environment
5392 have_afalg=no
5393 cat > $TMPC << EOF
5394 #include <errno.h>
5395 #include <sys/types.h>
5396 #include <sys/socket.h>
5397 #include <linux/if_alg.h>
5398 int main(void) {
5399     int sock;
5400     sock = socket(AF_ALG, SOCK_SEQPACKET, 0);
5401     return sock;
5402 }
5403 EOF
5404 if compile_prog "" "" ; then
5405     have_afalg=yes
5406 fi
5407 if test "$crypto_afalg" = "yes"
5408 then
5409     if test "$have_afalg" != "yes"
5410     then
5411         error_exit "AF_ALG requested but could not be detected"
5412     fi
5413 fi
5414
5415
5416 #################################################
5417 # check for sysmacros.h
5418
5419 have_sysmacros=no
5420 cat > $TMPC << EOF
5421 #include <sys/sysmacros.h>
5422 int main(void) {
5423     return makedev(0, 0);
5424 }
5425 EOF
5426 if compile_prog "" "" ; then
5427     have_sysmacros=yes
5428 fi
5429
5430 ##########################################
5431 # check for _Static_assert()
5432
5433 have_static_assert=no
5434 cat > $TMPC << EOF
5435 _Static_assert(1, "success");
5436 int main(void) {
5437     return 0;
5438 }
5439 EOF
5440 if compile_prog "" "" ; then
5441     have_static_assert=yes
5442 fi
5443
5444 ##########################################
5445 # check for utmpx.h, it is missing e.g. on OpenBSD
5446
5447 have_utmpx=no
5448 cat > $TMPC << EOF
5449 #include <utmpx.h>
5450 struct utmpx user_info;
5451 int main(void) {
5452     return 0;
5453 }
5454 EOF
5455 if compile_prog "" "" ; then
5456     have_utmpx=yes
5457 fi
5458
5459 ##########################################
5460 # check for getrandom()
5461
5462 have_getrandom=no
5463 cat > $TMPC << EOF
5464 #include <sys/random.h>
5465 int main(void) {
5466     return getrandom(0, 0, GRND_NONBLOCK);
5467 }
5468 EOF
5469 if compile_prog "" "" ; then
5470     have_getrandom=yes
5471 fi
5472
5473 ##########################################
5474 # checks for sanitizers
5475
5476 have_asan=no
5477 have_ubsan=no
5478 have_asan_iface_h=no
5479 have_asan_iface_fiber=no
5480
5481 if test "$sanitizers" = "yes" ; then
5482   write_c_skeleton
5483   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" ""; then
5484       have_asan=yes
5485   fi
5486
5487   # we could use a simple skeleton for flags checks, but this also
5488   # detect the static linking issue of ubsan, see also:
5489   # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84285
5490   cat > $TMPC << EOF
5491 #include <stdlib.h>
5492 int main(void) {
5493     void *tmp = malloc(10);
5494     if (tmp != NULL) {
5495         return *(int *)(tmp + 2);
5496     }
5497     return 1;
5498 }
5499 EOF
5500   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=undefined" ""; then
5501       have_ubsan=yes
5502   fi
5503
5504   if check_include "sanitizer/asan_interface.h" ; then
5505       have_asan_iface_h=yes
5506   fi
5507
5508   cat > $TMPC << EOF
5509 #include <sanitizer/asan_interface.h>
5510 int main(void) {
5511   __sanitizer_start_switch_fiber(0, 0, 0);
5512   return 0;
5513 }
5514 EOF
5515   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=address" "" ; then
5516       have_asan_iface_fiber=yes
5517   fi
5518 fi
5519
5520 ##########################################
5521 # checks for fuzzer
5522 if test "$fuzzing" = "yes" && test -z "${LIB_FUZZING_ENGINE+xxx}"; then
5523   write_c_fuzzer_skeleton
5524   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=fuzzer" ""; then
5525     have_fuzzer=yes
5526   else
5527     error_exit "Your compiler doesn't support -fsanitize=fuzzer"
5528     exit 1
5529   fi
5530 fi
5531
5532 # Thread sanitizer is, for now, much noisier than the other sanitizers;
5533 # keep it separate until that is not the case.
5534 if test "$tsan" = "yes" && test "$sanitizers" = "yes"; then
5535   error_exit "TSAN is not supported with other sanitiziers."
5536 fi
5537 have_tsan=no
5538 have_tsan_iface_fiber=no
5539 if test "$tsan" = "yes" ; then
5540   write_c_skeleton
5541   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5542       have_tsan=yes
5543   fi
5544   cat > $TMPC << EOF
5545 #include <sanitizer/tsan_interface.h>
5546 int main(void) {
5547   __tsan_create_fiber(0);
5548   return 0;
5549 }
5550 EOF
5551   if compile_prog "$CPU_CFLAGS -Werror -fsanitize=thread" "" ; then
5552       have_tsan_iface_fiber=yes
5553   fi
5554 fi
5555
5556 ##########################################
5557 # check for libpmem
5558
5559 if test "$libpmem" != "no"; then
5560         if $pkg_config --exists "libpmem"; then
5561                 libpmem="yes"
5562                 libpmem_libs=$($pkg_config --libs libpmem)
5563                 libpmem_cflags=$($pkg_config --cflags libpmem)
5564         else
5565                 if test "$libpmem" = "yes" ; then
5566                         feature_not_found "libpmem" "Install nvml or pmdk"
5567                 fi
5568                 libpmem="no"
5569         fi
5570 fi
5571
5572 ##########################################
5573 # check for libdaxctl
5574
5575 if test "$libdaxctl" != "no"; then
5576         if $pkg_config --atleast-version=57 "libdaxctl"; then
5577                 libdaxctl="yes"
5578                 libdaxctl_libs=$($pkg_config --libs libdaxctl)
5579                 libdaxctl_cflags=$($pkg_config --cflags libdaxctl)
5580         else
5581                 if test "$libdaxctl" = "yes" ; then
5582                         feature_not_found "libdaxctl" "Install libdaxctl"
5583                 fi
5584                 libdaxctl="no"
5585         fi
5586 fi
5587
5588 ##########################################
5589 # check for slirp
5590
5591 case "$slirp" in
5592   auto | enabled | internal)
5593     # Simpler to always update submodule, even if not needed.
5594     if test -e "${source_path}/.git" && test $git_update = 'yes' ; then
5595       git_submodules="${git_submodules} slirp"
5596     fi
5597     ;;
5598 esac
5599
5600 ##########################################
5601 # check for usable __NR_keyctl syscall
5602
5603 if test "$linux" = "yes" ; then
5604
5605     have_keyring=no
5606     cat > $TMPC << EOF
5607 #include <errno.h>
5608 #include <asm/unistd.h>
5609 #include <linux/keyctl.h>
5610 #include <unistd.h>
5611 int main(void) {
5612     return syscall(__NR_keyctl, KEYCTL_READ, 0, NULL, NULL, 0);
5613 }
5614 EOF
5615     if compile_prog "" "" ; then
5616         have_keyring=yes
5617     fi
5618 fi
5619 if test "$secret_keyring" != "no"
5620 then
5621     if test "$have_keyring" = "yes"
5622     then
5623         secret_keyring=yes
5624     else
5625         if test "$secret_keyring" = "yes"
5626         then
5627             error_exit "syscall __NR_keyctl requested, \
5628 but not implemented on your system"
5629         else
5630             secret_keyring=no
5631         fi
5632     fi
5633 fi
5634
5635 ##########################################
5636 # End of CC checks
5637 # After here, no more $cc or $ld runs
5638
5639 write_c_skeleton
5640
5641 if test "$gcov" = "yes" ; then
5642   :
5643 elif test "$fortify_source" = "yes" ; then
5644   QEMU_CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 $QEMU_CFLAGS"
5645   debug=no
5646 fi
5647
5648 case "$ARCH" in
5649 alpha)
5650   # Ensure there's only a single GP
5651   QEMU_CFLAGS="-msmall-data $QEMU_CFLAGS"
5652 ;;
5653 esac
5654
5655 if test "$gprof" = "yes" ; then
5656   QEMU_CFLAGS="-p $QEMU_CFLAGS"
5657   QEMU_LDFLAGS="-p $QEMU_LDFLAGS"
5658 fi
5659
5660 if test "$have_asan" = "yes"; then
5661   QEMU_CFLAGS="-fsanitize=address $QEMU_CFLAGS"
5662   QEMU_LDFLAGS="-fsanitize=address $QEMU_LDFLAGS"
5663   if test "$have_asan_iface_h" = "no" ; then
5664       echo "ASAN build enabled, but ASAN header missing." \
5665            "Without code annotation, the report may be inferior."
5666   elif test "$have_asan_iface_fiber" = "no" ; then
5667       echo "ASAN build enabled, but ASAN header is too old." \
5668            "Without code annotation, the report may be inferior."
5669   fi
5670 fi
5671 if test "$have_tsan" = "yes" ; then
5672   if test "$have_tsan_iface_fiber" = "yes" ; then
5673     QEMU_CFLAGS="-fsanitize=thread $QEMU_CFLAGS"
5674     QEMU_LDFLAGS="-fsanitize=thread $QEMU_LDFLAGS"
5675   else
5676     error_exit "Cannot enable TSAN due to missing fiber annotation interface."
5677   fi
5678 elif test "$tsan" = "yes" ; then
5679   error_exit "Cannot enable TSAN due to missing sanitize thread interface."
5680 fi
5681 if test "$have_ubsan" = "yes"; then
5682   QEMU_CFLAGS="-fsanitize=undefined $QEMU_CFLAGS"
5683   QEMU_LDFLAGS="-fsanitize=undefined $QEMU_LDFLAGS"
5684 fi
5685
5686 ##########################################
5687 # Do we have libnfs
5688 if test "$libnfs" != "no" ; then
5689   if $pkg_config --atleast-version=1.9.3 libnfs; then
5690     libnfs="yes"
5691     libnfs_libs=$($pkg_config --libs libnfs)
5692   else
5693     if test "$libnfs" = "yes" ; then
5694       feature_not_found "libnfs" "Install libnfs devel >= 1.9.3"
5695     fi
5696     libnfs="no"
5697   fi
5698 fi
5699
5700 ##########################################
5701
5702 # Exclude --warn-common with TSan to suppress warnings from the TSan libraries.
5703 if test "$solaris" = "no" && test "$tsan" = "no"; then
5704     if $ld --version 2>/dev/null | grep "GNU ld" >/dev/null 2>/dev/null ; then
5705         QEMU_LDFLAGS="-Wl,--warn-common $QEMU_LDFLAGS"
5706     fi
5707 fi
5708
5709 # Use ASLR, no-SEH and DEP if available
5710 if test "$mingw32" = "yes" ; then
5711     flags="--no-seh --nxcompat"
5712
5713     # Disable ASLR for debug builds to allow debugging with gdb
5714     if test "$debug" = "no" ; then
5715         flags="--dynamicbase $flags"
5716     fi
5717
5718     for flag in $flags; do
5719         if ld_has $flag ; then
5720             QEMU_LDFLAGS="-Wl,$flag $QEMU_LDFLAGS"
5721         fi
5722     done
5723 fi
5724
5725 # We can only support ivshmem if we have eventfd
5726 if [ "$eventfd" = "yes" ]; then
5727   ivshmem=yes
5728 fi
5729
5730 if test "$softmmu" = yes ; then
5731   if test "$linux" = yes; then
5732     if test "$virtfs" != no && test "$cap_ng" = yes && test "$attr" = yes ; then
5733       virtfs=yes
5734     else
5735       if test "$virtfs" = yes; then
5736         error_exit "VirtFS requires libcap-ng devel and libattr devel"
5737       fi
5738       virtfs=no
5739     fi
5740   else
5741     if test "$virtfs" = yes; then
5742       error_exit "VirtFS is supported only on Linux"
5743     fi
5744     virtfs=no
5745   fi
5746 fi
5747
5748 # Probe for guest agent support/options
5749
5750 if [ "$guest_agent" != "no" ]; then
5751   if [ "$softmmu" = no -a "$want_tools" = no ] ; then
5752       guest_agent=no
5753   elif [ "$linux" = "yes" -o "$bsd" = "yes" -o "$solaris" = "yes" -o "$mingw32" = "yes" ] ; then
5754       guest_agent=yes
5755   elif [ "$guest_agent" != yes ]; then
5756       guest_agent=no
5757   else
5758       error_exit "Guest agent is not supported on this platform"
5759   fi
5760 fi
5761
5762 # Guest agent Window MSI  package
5763
5764 if test "$guest_agent" != yes; then
5765   if test "$guest_agent_msi" = yes; then
5766     error_exit "MSI guest agent package requires guest agent enabled"
5767   fi
5768   guest_agent_msi=no
5769 elif test "$mingw32" != "yes"; then
5770   if test "$guest_agent_msi" = "yes"; then
5771     error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
5772   fi
5773   guest_agent_msi=no
5774 elif ! has wixl; then
5775   if test "$guest_agent_msi" = "yes"; then
5776     error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
5777   fi
5778   guest_agent_msi=no
5779 else
5780   # we support qemu-ga, mingw32, and wixl: default to MSI enabled if it wasn't
5781   # disabled explicitly
5782   if test "$guest_agent_msi" != "no"; then
5783     guest_agent_msi=yes
5784   fi
5785 fi
5786
5787 if test "$guest_agent_msi" = "yes"; then
5788   if test "$guest_agent_with_vss" = "yes"; then
5789     QEMU_GA_MSI_WITH_VSS="-D InstallVss"
5790   fi
5791
5792   if test "$QEMU_GA_MANUFACTURER" = ""; then
5793     QEMU_GA_MANUFACTURER=QEMU
5794   fi
5795
5796   if test "$QEMU_GA_DISTRO" = ""; then
5797     QEMU_GA_DISTRO=Linux
5798   fi
5799
5800   if test "$QEMU_GA_VERSION" = ""; then
5801       QEMU_GA_VERSION=$(cat $source_path/VERSION)
5802   fi
5803
5804   QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=$($pkg_config --variable=prefix glib-2.0)/bin"
5805
5806   case "$cpu" in
5807   x86_64)
5808     QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
5809     ;;
5810   i386)
5811     QEMU_GA_MSI_ARCH="-D Arch=32"
5812     ;;
5813   *)
5814     error_exit "CPU $cpu not supported for building installation package"
5815     ;;
5816   esac
5817 fi
5818
5819 # Mac OS X ships with a broken assembler
5820 roms=
5821 if { test "$cpu" = "i386" || test "$cpu" = "x86_64"; } && \
5822         test "$targetos" != "Darwin" && test "$targetos" != "SunOS" && \
5823         test "$targetos" != "Haiku" && test "$softmmu" = yes ; then
5824     # Different host OS linkers have different ideas about the name of the ELF
5825     # emulation. Linux and OpenBSD/amd64 use 'elf_i386'; FreeBSD uses the _fbsd
5826     # variant; OpenBSD/i386 uses the _obsd variant; and Windows uses i386pe.
5827     for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
5828         if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; then
5829             ld_i386_emulation="$emu"
5830             roms="optionrom"
5831             break
5832         fi
5833     done
5834 fi
5835
5836 # Only build s390-ccw bios if we're on s390x and the compiler has -march=z900
5837 if test "$cpu" = "s390x" ; then
5838   write_c_skeleton
5839   if compile_prog "-march=z900" ""; then
5840     roms="$roms s390-ccw"
5841     # SLOF is required for building the s390-ccw firmware on s390x,
5842     # since it is using the libnet code from SLOF for network booting.
5843     if test -e "${source_path}/.git" ; then
5844       git_submodules="${git_submodules} roms/SLOF"
5845     fi
5846   fi
5847 fi
5848
5849 # Check that the C++ compiler exists and works with the C compiler.
5850 # All the QEMU_CXXFLAGS are based on QEMU_CFLAGS. Keep this at the end to don't miss any other that could be added.
5851 if has $cxx; then
5852     cat > $TMPC <<EOF
5853 int c_function(void);
5854 int main(void) { return c_function(); }
5855 EOF
5856
5857     compile_object
5858
5859     cat > $TMPCXX <<EOF
5860 extern "C" {
5861    int c_function(void);
5862 }
5863 int c_function(void) { return 42; }
5864 EOF
5865
5866     update_cxxflags
5867
5868     if do_cxx $CXXFLAGS $CONFIGURE_CXXFLAGS $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $QEMU_LDFLAGS; then
5869         # C++ compiler $cxx works ok with C compiler $cc
5870         :
5871     else
5872         echo "C++ compiler $cxx does not work with C compiler $cc"
5873         echo "Disabling C++ specific optional code"
5874         cxx=
5875     fi
5876 else
5877     echo "No C++ compiler available; disabling C++ specific optional code"
5878     cxx=
5879 fi
5880
5881 if test $git_update = 'yes' ; then
5882     (cd "${source_path}" && GIT="$git" "./scripts/git-submodule.sh" update "$git_submodules")
5883 fi
5884
5885 config_host_mak="config-host.mak"
5886
5887 echo "# Automatically generated by configure - do not modify" > $config_host_mak
5888 echo >> $config_host_mak
5889
5890 echo all: >> $config_host_mak
5891 echo "GIT=$git" >> $config_host_mak
5892 echo "GIT_SUBMODULES=$git_submodules" >> $config_host_mak
5893 echo "GIT_UPDATE=$git_update" >> $config_host_mak
5894
5895 echo "ARCH=$ARCH" >> $config_host_mak
5896
5897 if test "$default_devices" = "yes" ; then
5898   echo "CONFIG_MINIKCONF_MODE=--defconfig" >> $config_host_mak
5899 else
5900   echo "CONFIG_MINIKCONF_MODE=--allnoconfig" >> $config_host_mak
5901 fi
5902 if test "$debug_tcg" = "yes" ; then
5903   echo "CONFIG_DEBUG_TCG=y" >> $config_host_mak
5904 fi
5905 if test "$strip_opt" = "yes" ; then
5906   echo "STRIP=${strip}" >> $config_host_mak
5907 fi
5908 if test "$bigendian" = "yes" ; then
5909   echo "HOST_WORDS_BIGENDIAN=y" >> $config_host_mak
5910 fi
5911 if test "$mingw32" = "yes" ; then
5912   echo "CONFIG_WIN32=y" >> $config_host_mak
5913   rc_version=$(cat $source_path/VERSION)
5914   version_major=${rc_version%%.*}
5915   rc_version=${rc_version#*.}
5916   version_minor=${rc_version%%.*}
5917   rc_version=${rc_version#*.}
5918   version_subminor=${rc_version%%.*}
5919   version_micro=0
5920   echo "CONFIG_FILEVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5921   echo "CONFIG_PRODUCTVERSION=$version_major,$version_minor,$version_subminor,$version_micro" >> $config_host_mak
5922   if test "$guest_agent_with_vss" = "yes" ; then
5923     echo "CONFIG_QGA_VSS=y" >> $config_host_mak
5924     echo "QGA_VSS_PROVIDER=$qga_vss_provider" >> $config_host_mak
5925     echo "WIN_SDK=\"$win_sdk\"" >> $config_host_mak
5926   fi
5927   if test "$guest_agent_ntddscsi" = "yes" ; then
5928     echo "CONFIG_QGA_NTDDSCSI=y" >> $config_host_mak
5929   fi
5930   if test "$guest_agent_msi" = "yes"; then
5931     echo "CONFIG_QGA_MSI=y" >> $config_host_mak
5932     echo "QEMU_GA_MSI_MINGW_DLL_PATH=${QEMU_GA_MSI_MINGW_DLL_PATH}" >> $config_host_mak
5933     echo "QEMU_GA_MSI_WITH_VSS=${QEMU_GA_MSI_WITH_VSS}" >> $config_host_mak
5934     echo "QEMU_GA_MSI_ARCH=${QEMU_GA_MSI_ARCH}" >> $config_host_mak
5935     echo "QEMU_GA_MANUFACTURER=${QEMU_GA_MANUFACTURER}" >> $config_host_mak
5936     echo "QEMU_GA_DISTRO=${QEMU_GA_DISTRO}" >> $config_host_mak
5937     echo "QEMU_GA_VERSION=${QEMU_GA_VERSION}" >> $config_host_mak
5938   fi
5939 else
5940   echo "CONFIG_POSIX=y" >> $config_host_mak
5941 fi
5942
5943 if test "$linux" = "yes" ; then
5944   echo "CONFIG_LINUX=y" >> $config_host_mak
5945 fi
5946
5947 if test "$darwin" = "yes" ; then
5948   echo "CONFIG_DARWIN=y" >> $config_host_mak
5949 fi
5950
5951 if test "$solaris" = "yes" ; then
5952   echo "CONFIG_SOLARIS=y" >> $config_host_mak
5953 fi
5954 if test "$haiku" = "yes" ; then
5955   echo "CONFIG_HAIKU=y" >> $config_host_mak
5956 fi
5957 if test "$static" = "yes" ; then
5958   echo "CONFIG_STATIC=y" >> $config_host_mak
5959 fi
5960 if test "$profiler" = "yes" ; then
5961   echo "CONFIG_PROFILER=y" >> $config_host_mak
5962 fi
5963 if test "$want_tools" = "yes" ; then
5964   echo "CONFIG_TOOLS=y" >> $config_host_mak
5965 fi
5966 if test "$guest_agent" = "yes" ; then
5967   echo "CONFIG_GUEST_AGENT=y" >> $config_host_mak
5968 fi
5969 echo "CONFIG_SMBD_COMMAND=\"$smbd\"" >> $config_host_mak
5970 if test "$vde" = "yes" ; then
5971   echo "CONFIG_VDE=y" >> $config_host_mak
5972   echo "VDE_LIBS=$vde_libs" >> $config_host_mak
5973 fi
5974 if test "$netmap" = "yes" ; then
5975   echo "CONFIG_NETMAP=y" >> $config_host_mak
5976 fi
5977 if test "$l2tpv3" = "yes" ; then
5978   echo "CONFIG_L2TPV3=y" >> $config_host_mak
5979 fi
5980 if test "$gprof" = "yes" ; then
5981   echo "CONFIG_GPROF=y" >> $config_host_mak
5982 fi
5983 if test "$cap_ng" = "yes" ; then
5984   echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
5985   echo "LIBCAP_NG_LIBS=$cap_libs" >> $config_host_mak
5986 fi
5987 echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
5988 for drv in $audio_drv_list; do
5989     def=CONFIG_AUDIO_$(echo $drv | LC_ALL=C tr '[a-z]' '[A-Z]')
5990     echo "$def=y" >> $config_host_mak
5991 done
5992 if test "$alsa" = "yes" ; then
5993     echo "CONFIG_ALSA=y" >> $config_host_mak
5994 fi
5995 echo "ALSA_LIBS=$alsa_libs" >> $config_host_mak
5996 echo "ALSA_CFLAGS=$alsa_cflags" >> $config_host_mak
5997 if test "$libpulse" = "yes" ; then
5998     echo "CONFIG_LIBPULSE=y" >> $config_host_mak
5999 fi
6000 echo "PULSE_LIBS=$pulse_libs" >> $config_host_mak
6001 echo "PULSE_CFLAGS=$pulse_cflags" >> $config_host_mak
6002 echo "COREAUDIO_LIBS=$coreaudio_libs" >> $config_host_mak
6003 echo "DSOUND_LIBS=$dsound_libs" >> $config_host_mak
6004 echo "OSS_LIBS=$oss_libs" >> $config_host_mak
6005 if test "$libjack" = "yes" ; then
6006     echo "CONFIG_LIBJACK=y" >> $config_host_mak
6007 fi
6008 echo "JACK_LIBS=$jack_libs" >> $config_host_mak
6009 if test "$audio_win_int" = "yes" ; then
6010   echo "CONFIG_AUDIO_WIN_INT=y" >> $config_host_mak
6011 fi
6012 echo "CONFIG_BDRV_RW_WHITELIST=$block_drv_rw_whitelist" >> $config_host_mak
6013 echo "CONFIG_BDRV_RO_WHITELIST=$block_drv_ro_whitelist" >> $config_host_mak
6014 if test "$xfs" = "yes" ; then
6015   echo "CONFIG_XFS=y" >> $config_host_mak
6016 fi
6017 qemu_version=$(head $source_path/VERSION)
6018 echo "PKGVERSION=$pkgversion" >>$config_host_mak
6019 echo "SRC_PATH=$source_path" >> $config_host_mak
6020 echo "TARGET_DIRS=$target_list" >> $config_host_mak
6021 if test "$modules" = "yes"; then
6022   # $shacmd can generate a hash started with digit, which the compiler doesn't
6023   # like as an symbol. So prefix it with an underscore
6024   echo "CONFIG_STAMP=_$( (echo $qemu_version; echo $pkgversion; cat $0) | $shacmd - | cut -f1 -d\ )" >> $config_host_mak
6025   echo "CONFIG_MODULES=y" >> $config_host_mak
6026 fi
6027 if test "$module_upgrades" = "yes"; then
6028   echo "CONFIG_MODULE_UPGRADES=y" >> $config_host_mak
6029 fi
6030 if test "$have_x11" = "yes" && test "$need_x11" = "yes"; then
6031   echo "CONFIG_X11=y" >> $config_host_mak
6032   echo "X11_CFLAGS=$x11_cflags" >> $config_host_mak
6033   echo "X11_LIBS=$x11_libs" >> $config_host_mak
6034 fi
6035 if test "$pipe2" = "yes" ; then
6036   echo "CONFIG_PIPE2=y" >> $config_host_mak
6037 fi
6038 if test "$accept4" = "yes" ; then
6039   echo "CONFIG_ACCEPT4=y" >> $config_host_mak
6040 fi
6041 if test "$splice" = "yes" ; then
6042   echo "CONFIG_SPLICE=y" >> $config_host_mak
6043 fi
6044 if test "$eventfd" = "yes" ; then
6045   echo "CONFIG_EVENTFD=y" >> $config_host_mak
6046 fi
6047 if test "$memfd" = "yes" ; then
6048   echo "CONFIG_MEMFD=y" >> $config_host_mak
6049 fi
6050 if test "$have_usbfs" = "yes" ; then
6051   echo "CONFIG_USBFS=y" >> $config_host_mak
6052 fi
6053 if test "$fallocate" = "yes" ; then
6054   echo "CONFIG_FALLOCATE=y" >> $config_host_mak
6055 fi
6056 if test "$fallocate_punch_hole" = "yes" ; then
6057   echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
6058 fi
6059 if test "$fallocate_zero_range" = "yes" ; then
6060   echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
6061 fi
6062 if test "$posix_fallocate" = "yes" ; then
6063   echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
6064 fi
6065 if test "$sync_file_range" = "yes" ; then
6066   echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
6067 fi
6068 if test "$fiemap" = "yes" ; then
6069   echo "CONFIG_FIEMAP=y" >> $config_host_mak
6070 fi
6071 if test "$dup3" = "yes" ; then
6072   echo "CONFIG_DUP3=y" >> $config_host_mak
6073 fi
6074 if test "$ppoll" = "yes" ; then
6075   echo "CONFIG_PPOLL=y" >> $config_host_mak
6076 fi
6077 if test "$prctl_pr_set_timerslack" = "yes" ; then
6078   echo "CONFIG_PRCTL_PR_SET_TIMERSLACK=y" >> $config_host_mak
6079 fi
6080 if test "$epoll" = "yes" ; then
6081   echo "CONFIG_EPOLL=y" >> $config_host_mak
6082 fi
6083 if test "$epoll_create1" = "yes" ; then
6084   echo "CONFIG_EPOLL_CREATE1=y" >> $config_host_mak
6085 fi
6086 if test "$sendfile" = "yes" ; then
6087   echo "CONFIG_SENDFILE=y" >> $config_host_mak
6088 fi
6089 if test "$timerfd" = "yes" ; then
6090   echo "CONFIG_TIMERFD=y" >> $config_host_mak
6091 fi
6092 if test "$setns" = "yes" ; then
6093   echo "CONFIG_SETNS=y" >> $config_host_mak
6094 fi
6095 if test "$clock_adjtime" = "yes" ; then
6096   echo "CONFIG_CLOCK_ADJTIME=y" >> $config_host_mak
6097 fi
6098 if test "$syncfs" = "yes" ; then
6099   echo "CONFIG_SYNCFS=y" >> $config_host_mak
6100 fi
6101 if test "$inotify" = "yes" ; then
6102   echo "CONFIG_INOTIFY=y" >> $config_host_mak
6103 fi
6104 if test "$inotify1" = "yes" ; then
6105   echo "CONFIG_INOTIFY1=y" >> $config_host_mak
6106 fi
6107 if test "$sem_timedwait" = "yes" ; then
6108   echo "CONFIG_SEM_TIMEDWAIT=y" >> $config_host_mak
6109 fi
6110 if test "$strchrnul" = "yes" ; then
6111   echo "HAVE_STRCHRNUL=y" >> $config_host_mak
6112 fi
6113 if test "$st_atim" = "yes" ; then
6114   echo "HAVE_STRUCT_STAT_ST_ATIM=y" >> $config_host_mak
6115 fi
6116 if test "$byteswap_h" = "yes" ; then
6117   echo "CONFIG_BYTESWAP_H=y" >> $config_host_mak
6118 fi
6119 if test "$bswap_h" = "yes" ; then
6120   echo "CONFIG_MACHINE_BSWAP_H=y" >> $config_host_mak
6121 fi
6122 if test "$curl" = "yes" ; then
6123   echo "CONFIG_CURL=y" >> $config_host_mak
6124   echo "CURL_CFLAGS=$curl_cflags" >> $config_host_mak
6125   echo "CURL_LIBS=$curl_libs" >> $config_host_mak
6126 fi
6127 if test "$brlapi" = "yes" ; then
6128   echo "CONFIG_BRLAPI=y" >> $config_host_mak
6129   echo "BRLAPI_LIBS=$brlapi_libs" >> $config_host_mak
6130 fi
6131 if test "$gtk" = "yes" ; then
6132   echo "CONFIG_GTK=y" >> $config_host_mak
6133   echo "GTK_CFLAGS=$gtk_cflags" >> $config_host_mak
6134   echo "GTK_LIBS=$gtk_libs" >> $config_host_mak
6135   if test "$gtk_gl" = "yes" ; then
6136     echo "CONFIG_GTK_GL=y" >> $config_host_mak
6137   fi
6138 fi
6139 if test "$gio" = "yes" ; then
6140     echo "CONFIG_GIO=y" >> $config_host_mak
6141     echo "GIO_CFLAGS=$gio_cflags" >> $config_host_mak
6142     echo "GIO_LIBS=$gio_libs" >> $config_host_mak
6143     echo "GDBUS_CODEGEN=$gdbus_codegen" >> $config_host_mak
6144 fi
6145 echo "CONFIG_TLS_PRIORITY=\"$tls_priority\"" >> $config_host_mak
6146 if test "$gnutls" = "yes" ; then
6147   echo "CONFIG_GNUTLS=y" >> $config_host_mak
6148   echo "GNUTLS_CFLAGS=$gnutls_cflags" >> $config_host_mak
6149   echo "GNUTLS_LIBS=$gnutls_libs" >> $config_host_mak
6150 fi
6151 if test "$gcrypt" = "yes" ; then
6152   echo "CONFIG_GCRYPT=y" >> $config_host_mak
6153   if test "$gcrypt_hmac" = "yes" ; then
6154     echo "CONFIG_GCRYPT_HMAC=y" >> $config_host_mak
6155   fi
6156   echo "GCRYPT_CFLAGS=$gcrypt_cflags" >> $config_host_mak
6157   echo "GCRYPT_LIBS=$gcrypt_libs" >> $config_host_mak
6158 fi
6159 if test "$nettle" = "yes" ; then
6160   echo "CONFIG_NETTLE=y" >> $config_host_mak
6161   echo "CONFIG_NETTLE_VERSION_MAJOR=${nettle_version%%.*}" >> $config_host_mak
6162   echo "NETTLE_CFLAGS=$nettle_cflags" >> $config_host_mak
6163   echo "NETTLE_LIBS=$nettle_libs" >> $config_host_mak
6164 fi
6165 if test "$qemu_private_xts" = "yes" ; then
6166   echo "CONFIG_QEMU_PRIVATE_XTS=y" >> $config_host_mak
6167 fi
6168 if test "$tasn1" = "yes" ; then
6169   echo "CONFIG_TASN1=y" >> $config_host_mak
6170 fi
6171 if test "$auth_pam" = "yes" ; then
6172     echo "CONFIG_AUTH_PAM=y" >> $config_host_mak
6173 fi
6174 if test "$have_broken_size_max" = "yes" ; then
6175     echo "HAVE_BROKEN_SIZE_MAX=y" >> $config_host_mak
6176 fi
6177 if test "$have_openpty" = "yes" ; then
6178     echo "HAVE_OPENPTY=y" >> $config_host_mak
6179 fi
6180
6181 # Work around a system header bug with some kernel/XFS header
6182 # versions where they both try to define 'struct fsxattr':
6183 # xfs headers will not try to redefine structs from linux headers
6184 # if this macro is set.
6185 if test "$have_fsxattr" = "yes" ; then
6186     echo "HAVE_FSXATTR=y" >> $config_host_mak
6187 fi
6188 if test "$have_copy_file_range" = "yes" ; then
6189     echo "HAVE_COPY_FILE_RANGE=y" >> $config_host_mak
6190 fi
6191 if test "$vte" = "yes" ; then
6192   echo "CONFIG_VTE=y" >> $config_host_mak
6193   echo "VTE_CFLAGS=$vte_cflags" >> $config_host_mak
6194   echo "VTE_LIBS=$vte_libs" >> $config_host_mak
6195 fi
6196 if test "$virglrenderer" = "yes" ; then
6197   echo "CONFIG_VIRGL=y" >> $config_host_mak
6198   echo "VIRGL_CFLAGS=$virgl_cflags" >> $config_host_mak
6199   echo "VIRGL_LIBS=$virgl_libs" >> $config_host_mak
6200 fi
6201 if test "$xen" = "enabled" ; then
6202   echo "CONFIG_XEN_BACKEND=y" >> $config_host_mak
6203   echo "CONFIG_XEN_CTRL_INTERFACE_VERSION=$xen_ctrl_version" >> $config_host_mak
6204   echo "XEN_CFLAGS=$xen_cflags" >> $config_host_mak
6205   echo "XEN_LIBS=$xen_libs" >> $config_host_mak
6206 fi
6207 if test "$linux_aio" = "yes" ; then
6208   echo "CONFIG_LINUX_AIO=y" >> $config_host_mak
6209 fi
6210 if test "$linux_io_uring" = "yes" ; then
6211   echo "CONFIG_LINUX_IO_URING=y" >> $config_host_mak
6212   echo "LINUX_IO_URING_CFLAGS=$linux_io_uring_cflags" >> $config_host_mak
6213   echo "LINUX_IO_URING_LIBS=$linux_io_uring_libs" >> $config_host_mak
6214 fi
6215 if test "$attr" = "yes" ; then
6216   echo "CONFIG_ATTR=y" >> $config_host_mak
6217   echo "LIBATTR_LIBS=$libattr_libs" >> $config_host_mak
6218 fi
6219 if test "$libattr" = "yes" ; then
6220   echo "CONFIG_LIBATTR=y" >> $config_host_mak
6221 fi
6222 if test "$virtfs" = "yes" ; then
6223   echo "CONFIG_VIRTFS=y" >> $config_host_mak
6224 fi
6225 if test "$vhost_scsi" = "yes" ; then
6226   echo "CONFIG_VHOST_SCSI=y" >> $config_host_mak
6227 fi
6228 if test "$vhost_net" = "yes" ; then
6229   echo "CONFIG_VHOST_NET=y" >> $config_host_mak
6230 fi
6231 if test "$vhost_net_user" = "yes" ; then
6232   echo "CONFIG_VHOST_NET_USER=y" >> $config_host_mak
6233 fi
6234 if test "$vhost_net_vdpa" = "yes" ; then
6235   echo "CONFIG_VHOST_NET_VDPA=y" >> $config_host_mak
6236 fi
6237 if test "$vhost_crypto" = "yes" ; then
6238   echo "CONFIG_VHOST_CRYPTO=y" >> $config_host_mak
6239 fi
6240 if test "$vhost_vsock" = "yes" ; then
6241   echo "CONFIG_VHOST_VSOCK=y" >> $config_host_mak
6242   if test "$vhost_user" = "yes" ; then
6243     echo "CONFIG_VHOST_USER_VSOCK=y" >> $config_host_mak
6244   fi
6245 fi
6246 if test "$vhost_kernel" = "yes" ; then
6247   echo "CONFIG_VHOST_KERNEL=y" >> $config_host_mak
6248 fi
6249 if test "$vhost_user" = "yes" ; then
6250   echo "CONFIG_VHOST_USER=y" >> $config_host_mak
6251 fi
6252 if test "$vhost_vdpa" = "yes" ; then
6253   echo "CONFIG_VHOST_VDPA=y" >> $config_host_mak
6254 fi
6255 if test "$vhost_user_fs" = "yes" ; then
6256   echo "CONFIG_VHOST_USER_FS=y" >> $config_host_mak
6257 fi
6258 if test "$iovec" = "yes" ; then
6259   echo "CONFIG_IOVEC=y" >> $config_host_mak
6260 fi
6261 if test "$preadv" = "yes" ; then
6262   echo "CONFIG_PREADV=y" >> $config_host_mak
6263 fi
6264 if test "$membarrier" = "yes" ; then
6265   echo "CONFIG_MEMBARRIER=y" >> $config_host_mak
6266 fi
6267 if test "$signalfd" = "yes" ; then
6268   echo "CONFIG_SIGNALFD=y" >> $config_host_mak
6269 fi
6270 if test "$optreset" = "yes" ; then
6271   echo "HAVE_OPTRESET=y" >> $config_host_mak
6272 fi
6273 if test "$tcg" = "enabled"; then
6274   if test "$tcg_interpreter" = "yes" ; then
6275     echo "CONFIG_TCG_INTERPRETER=y" >> $config_host_mak
6276   fi
6277 fi
6278 if test "$fdatasync" = "yes" ; then
6279   echo "CONFIG_FDATASYNC=y" >> $config_host_mak
6280 fi
6281 if test "$madvise" = "yes" ; then
6282   echo "CONFIG_MADVISE=y" >> $config_host_mak
6283 fi
6284 if test "$posix_madvise" = "yes" ; then
6285   echo "CONFIG_POSIX_MADVISE=y" >> $config_host_mak
6286 fi
6287 if test "$posix_memalign" = "yes" ; then
6288   echo "CONFIG_POSIX_MEMALIGN=y" >> $config_host_mak
6289 fi
6290 if test "$spice" = "yes" ; then
6291   echo "CONFIG_SPICE=y" >> $config_host_mak
6292   echo "SPICE_CFLAGS=$spice_cflags" >> $config_host_mak
6293   echo "SPICE_LIBS=$spice_libs" >> $config_host_mak
6294 fi
6295
6296 if test "$smartcard" = "yes" ; then
6297   echo "CONFIG_SMARTCARD=y" >> $config_host_mak
6298   echo "SMARTCARD_CFLAGS=$libcacard_cflags" >> $config_host_mak
6299   echo "SMARTCARD_LIBS=$libcacard_libs" >> $config_host_mak
6300 fi
6301
6302 if test "$libusb" = "yes" ; then
6303   echo "CONFIG_USB_LIBUSB=y" >> $config_host_mak
6304   echo "LIBUSB_CFLAGS=$libusb_cflags" >> $config_host_mak
6305   echo "LIBUSB_LIBS=$libusb_libs" >> $config_host_mak
6306 fi
6307
6308 if test "$usb_redir" = "yes" ; then
6309   echo "CONFIG_USB_REDIR=y" >> $config_host_mak
6310   echo "USB_REDIR_CFLAGS=$usb_redir_cflags" >> $config_host_mak
6311   echo "USB_REDIR_LIBS=$usb_redir_libs" >> $config_host_mak
6312 fi
6313
6314 if test "$opengl" = "yes" ; then
6315   echo "CONFIG_OPENGL=y" >> $config_host_mak
6316   echo "OPENGL_CFLAGS=$opengl_cflags" >> $config_host_mak
6317   echo "OPENGL_LIBS=$opengl_libs" >> $config_host_mak
6318   if test "$opengl_dmabuf" = "yes" ; then
6319     echo "CONFIG_OPENGL_DMABUF=y" >> $config_host_mak
6320   fi
6321 fi
6322
6323 if test "$gbm" = "yes" ; then
6324     echo "CONFIG_GBM=y" >> $config_host_mak
6325     echo "GBM_LIBS=$gbm_libs" >> $config_host_mak
6326     echo "GBM_CFLAGS=$gbm_cflags" >> $config_host_mak
6327 fi
6328
6329
6330 if test "$avx2_opt" = "yes" ; then
6331   echo "CONFIG_AVX2_OPT=y" >> $config_host_mak
6332 fi
6333
6334 if test "$avx512f_opt" = "yes" ; then
6335   echo "CONFIG_AVX512F_OPT=y" >> $config_host_mak
6336 fi
6337
6338 if test "$lzo" = "yes" ; then
6339   echo "CONFIG_LZO=y" >> $config_host_mak
6340   echo "LZO_LIBS=$lzo_libs" >> $config_host_mak
6341 fi
6342
6343 if test "$snappy" = "yes" ; then
6344   echo "CONFIG_SNAPPY=y" >> $config_host_mak
6345   echo "SNAPPY_LIBS=$snappy_libs" >> $config_host_mak
6346 fi
6347
6348 if test "$bzip2" = "yes" ; then
6349   echo "CONFIG_BZIP2=y" >> $config_host_mak
6350   echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
6351 fi
6352
6353 if test "$lzfse" = "yes" ; then
6354   echo "CONFIG_LZFSE=y" >> $config_host_mak
6355   echo "LZFSE_LIBS=-llzfse" >> $config_host_mak
6356 fi
6357
6358 if test "$zstd" = "yes" ; then
6359   echo "CONFIG_ZSTD=y" >> $config_host_mak
6360   echo "ZSTD_CFLAGS=$zstd_cflags" >> $config_host_mak
6361   echo "ZSTD_LIBS=$zstd_libs" >> $config_host_mak
6362 fi
6363
6364 if test "$libiscsi" = "yes" ; then
6365   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
6366   echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
6367   echo "LIBISCSI_LIBS=$libiscsi_libs" >> $config_host_mak
6368 fi
6369
6370 if test "$libnfs" = "yes" ; then
6371   echo "CONFIG_LIBNFS=y" >> $config_host_mak
6372   echo "LIBNFS_LIBS=$libnfs_libs" >> $config_host_mak
6373 fi
6374
6375 if test "$seccomp" = "yes"; then
6376   echo "CONFIG_SECCOMP=y" >> $config_host_mak
6377   echo "SECCOMP_CFLAGS=$seccomp_cflags" >> $config_host_mak
6378   echo "SECCOMP_LIBS=$seccomp_libs" >> $config_host_mak
6379 fi
6380
6381 # XXX: suppress that
6382 if [ "$bsd" = "yes" ] ; then
6383   echo "CONFIG_BSD=y" >> $config_host_mak
6384 fi
6385
6386 if test "$qom_cast_debug" = "yes" ; then
6387   echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak
6388 fi
6389 if test "$rbd" = "yes" ; then
6390   echo "CONFIG_RBD=y" >> $config_host_mak
6391   echo "RBD_LIBS=$rbd_libs" >> $config_host_mak
6392 fi
6393
6394 echo "CONFIG_COROUTINE_BACKEND=$coroutine" >> $config_host_mak
6395 if test "$coroutine_pool" = "yes" ; then
6396   echo "CONFIG_COROUTINE_POOL=1" >> $config_host_mak
6397 else
6398   echo "CONFIG_COROUTINE_POOL=0" >> $config_host_mak
6399 fi
6400
6401 if test "$debug_stack_usage" = "yes" ; then
6402   echo "CONFIG_DEBUG_STACK_USAGE=y" >> $config_host_mak
6403 fi
6404
6405 if test "$crypto_afalg" = "yes" ; then
6406   echo "CONFIG_AF_ALG=y" >> $config_host_mak
6407 fi
6408
6409 if test "$open_by_handle_at" = "yes" ; then
6410   echo "CONFIG_OPEN_BY_HANDLE=y" >> $config_host_mak
6411 fi
6412
6413 if test "$linux_magic_h" = "yes" ; then
6414   echo "CONFIG_LINUX_MAGIC_H=y" >> $config_host_mak
6415 fi
6416
6417 if test "$valgrind_h" = "yes" ; then
6418   echo "CONFIG_VALGRIND_H=y" >> $config_host_mak
6419 fi
6420
6421 if test "$have_asan_iface_fiber" = "yes" ; then
6422     echo "CONFIG_ASAN_IFACE_FIBER=y" >> $config_host_mak
6423 fi
6424
6425 if test "$have_tsan" = "yes" && test "$have_tsan_iface_fiber" = "yes" ; then
6426     echo "CONFIG_TSAN=y" >> $config_host_mak
6427 fi
6428
6429 if test "$has_environ" = "yes" ; then
6430   echo "CONFIG_HAS_ENVIRON=y" >> $config_host_mak
6431 fi
6432
6433 if test "$cpuid_h" = "yes" ; then
6434   echo "CONFIG_CPUID_H=y" >> $config_host_mak
6435 fi
6436
6437 if test "$int128" = "yes" ; then
6438   echo "CONFIG_INT128=y" >> $config_host_mak
6439 fi
6440
6441 if test "$atomic128" = "yes" ; then
6442   echo "CONFIG_ATOMIC128=y" >> $config_host_mak
6443 fi
6444
6445 if test "$cmpxchg128" = "yes" ; then
6446   echo "CONFIG_CMPXCHG128=y" >> $config_host_mak
6447 fi
6448
6449 if test "$atomic64" = "yes" ; then
6450   echo "CONFIG_ATOMIC64=y" >> $config_host_mak
6451 fi
6452
6453 if test "$attralias" = "yes" ; then
6454   echo "CONFIG_ATTRIBUTE_ALIAS=y" >> $config_host_mak
6455 fi
6456
6457 if test "$getauxval" = "yes" ; then
6458   echo "CONFIG_GETAUXVAL=y" >> $config_host_mak
6459 fi
6460
6461 if test "$glusterfs" = "yes" ; then
6462   echo "CONFIG_GLUSTERFS=y" >> $config_host_mak
6463   echo "GLUSTERFS_CFLAGS=$glusterfs_cflags" >> $config_host_mak
6464   echo "GLUSTERFS_LIBS=$glusterfs_libs" >> $config_host_mak
6465 fi
6466
6467 if test "$glusterfs_xlator_opt" = "yes" ; then
6468   echo "CONFIG_GLUSTERFS_XLATOR_OPT=y" >> $config_host_mak
6469 fi
6470
6471 if test "$glusterfs_discard" = "yes" ; then
6472   echo "CONFIG_GLUSTERFS_DISCARD=y" >> $config_host_mak
6473 fi
6474
6475 if test "$glusterfs_fallocate" = "yes" ; then
6476   echo "CONFIG_GLUSTERFS_FALLOCATE=y" >> $config_host_mak
6477 fi
6478
6479 if test "$glusterfs_zerofill" = "yes" ; then
6480   echo "CONFIG_GLUSTERFS_ZEROFILL=y" >> $config_host_mak
6481 fi
6482
6483 if test "$glusterfs_ftruncate_has_stat" = "yes" ; then
6484   echo "CONFIG_GLUSTERFS_FTRUNCATE_HAS_STAT=y" >> $config_host_mak
6485 fi
6486
6487 if test "$glusterfs_iocb_has_stat" = "yes" ; then
6488   echo "CONFIG_GLUSTERFS_IOCB_HAS_STAT=y" >> $config_host_mak
6489 fi
6490
6491 if test "$libssh" = "yes" ; then
6492   echo "CONFIG_LIBSSH=y" >> $config_host_mak
6493   echo "LIBSSH_CFLAGS=$libssh_cflags" >> $config_host_mak
6494   echo "LIBSSH_LIBS=$libssh_libs" >> $config_host_mak
6495 fi
6496
6497 if test "$live_block_migration" = "yes" ; then
6498   echo "CONFIG_LIVE_BLOCK_MIGRATION=y" >> $config_host_mak
6499 fi
6500
6501 if test "$tpm" = "yes"; then
6502   echo 'CONFIG_TPM=y' >> $config_host_mak
6503 fi
6504
6505 echo "TRACE_BACKENDS=$trace_backends" >> $config_host_mak
6506 if have_backend "nop"; then
6507   echo "CONFIG_TRACE_NOP=y" >> $config_host_mak
6508 fi
6509 if have_backend "simple"; then
6510   echo "CONFIG_TRACE_SIMPLE=y" >> $config_host_mak
6511   # Set the appropriate trace file.
6512   trace_file="\"$trace_file-\" FMT_pid"
6513 fi
6514 if have_backend "log"; then
6515   echo "CONFIG_TRACE_LOG=y" >> $config_host_mak
6516 fi
6517 if have_backend "ust"; then
6518   echo "CONFIG_TRACE_UST=y" >> $config_host_mak
6519   echo "LTTNG_UST_LIBS=$lttng_ust_libs" >> $config_host_mak
6520   echo "URCU_BP_LIBS=$urcu_bp_libs" >> $config_host_mak
6521 fi
6522 if have_backend "dtrace"; then
6523   echo "CONFIG_TRACE_DTRACE=y" >> $config_host_mak
6524   if test "$trace_backend_stap" = "yes" ; then
6525     echo "CONFIG_TRACE_SYSTEMTAP=y" >> $config_host_mak
6526   fi
6527 fi
6528 if have_backend "ftrace"; then
6529   if test "$linux" = "yes" ; then
6530     echo "CONFIG_TRACE_FTRACE=y" >> $config_host_mak
6531   else
6532     feature_not_found "ftrace(trace backend)" "ftrace requires Linux"
6533   fi
6534 fi
6535 if have_backend "syslog"; then
6536   if test "$posix_syslog" = "yes" ; then
6537     echo "CONFIG_TRACE_SYSLOG=y" >> $config_host_mak
6538   else
6539     feature_not_found "syslog(trace backend)" "syslog not available"
6540   fi
6541 fi
6542 echo "CONFIG_TRACE_FILE=$trace_file" >> $config_host_mak
6543
6544 if test "$rdma" = "yes" ; then
6545   echo "CONFIG_RDMA=y" >> $config_host_mak
6546   echo "RDMA_LIBS=$rdma_libs" >> $config_host_mak
6547 fi
6548
6549 if test "$pvrdma" = "yes" ; then
6550   echo "CONFIG_PVRDMA=y" >> $config_host_mak
6551 fi
6552
6553 if test "$have_rtnetlink" = "yes" ; then
6554   echo "CONFIG_RTNETLINK=y" >> $config_host_mak
6555 fi
6556
6557 if test "$libxml2" = "yes" ; then
6558   echo "CONFIG_LIBXML2=y" >> $config_host_mak
6559   echo "LIBXML2_CFLAGS=$libxml2_cflags" >> $config_host_mak
6560   echo "LIBXML2_LIBS=$libxml2_libs" >> $config_host_mak
6561 fi
6562
6563 if test "$replication" = "yes" ; then
6564   echo "CONFIG_REPLICATION=y" >> $config_host_mak
6565 fi
6566
6567 if test "$have_af_vsock" = "yes" ; then
6568   echo "CONFIG_AF_VSOCK=y" >> $config_host_mak
6569 fi
6570
6571 if test "$have_sysmacros" = "yes" ; then
6572   echo "CONFIG_SYSMACROS=y" >> $config_host_mak
6573 fi
6574
6575 if test "$have_static_assert" = "yes" ; then
6576   echo "CONFIG_STATIC_ASSERT=y" >> $config_host_mak
6577 fi
6578
6579 if test "$have_utmpx" = "yes" ; then
6580   echo "HAVE_UTMPX=y" >> $config_host_mak
6581 fi
6582 if test "$have_getrandom" = "yes" ; then
6583   echo "CONFIG_GETRANDOM=y" >> $config_host_mak
6584 fi
6585 if test "$ivshmem" = "yes" ; then
6586   echo "CONFIG_IVSHMEM=y" >> $config_host_mak
6587 fi
6588 if test "$debug_mutex" = "yes" ; then
6589   echo "CONFIG_DEBUG_MUTEX=y" >> $config_host_mak
6590 fi
6591
6592 # Hold two types of flag:
6593 #   CONFIG_THREAD_SETNAME_BYTHREAD  - we've got a way of setting the name on
6594 #                                     a thread we have a handle to
6595 #   CONFIG_PTHREAD_SETNAME_NP_W_TID - A way of doing it on a particular
6596 #                                     platform
6597 if test "$pthread_setname_np_w_tid" = "yes" ; then
6598   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6599   echo "CONFIG_PTHREAD_SETNAME_NP_W_TID=y" >> $config_host_mak
6600 elif test "$pthread_setname_np_wo_tid" = "yes" ; then
6601   echo "CONFIG_THREAD_SETNAME_BYTHREAD=y" >> $config_host_mak
6602   echo "CONFIG_PTHREAD_SETNAME_NP_WO_TID=y" >> $config_host_mak
6603 fi
6604
6605 if test "$libpmem" = "yes" ; then
6606   echo "CONFIG_LIBPMEM=y" >> $config_host_mak
6607   echo "LIBPMEM_LIBS=$libpmem_libs" >> $config_host_mak
6608   echo "LIBPMEM_CFLAGS=$libpmem_cflags" >> $config_host_mak
6609 fi
6610
6611 if test "$libdaxctl" = "yes" ; then
6612   echo "CONFIG_LIBDAXCTL=y" >> $config_host_mak
6613   echo "LIBDAXCTL_LIBS=$libdaxctl_libs" >> $config_host_mak
6614 fi
6615
6616 if test "$bochs" = "yes" ; then
6617   echo "CONFIG_BOCHS=y" >> $config_host_mak
6618 fi
6619 if test "$cloop" = "yes" ; then
6620   echo "CONFIG_CLOOP=y" >> $config_host_mak
6621 fi
6622 if test "$dmg" = "yes" ; then
6623   echo "CONFIG_DMG=y" >> $config_host_mak
6624 fi
6625 if test "$qcow1" = "yes" ; then
6626   echo "CONFIG_QCOW1=y" >> $config_host_mak
6627 fi
6628 if test "$vdi" = "yes" ; then
6629   echo "CONFIG_VDI=y" >> $config_host_mak
6630 fi
6631 if test "$vvfat" = "yes" ; then
6632   echo "CONFIG_VVFAT=y" >> $config_host_mak
6633 fi
6634 if test "$qed" = "yes" ; then
6635   echo "CONFIG_QED=y" >> $config_host_mak
6636 fi
6637 if test "$parallels" = "yes" ; then
6638   echo "CONFIG_PARALLELS=y" >> $config_host_mak
6639 fi
6640 if test "$sheepdog" = "yes" ; then
6641   add_to deprecated_features "sheepdog"
6642   echo "CONFIG_SHEEPDOG=y" >> $config_host_mak
6643 fi
6644 if test "$have_mlockall" = "yes" ; then
6645   echo "HAVE_MLOCKALL=y" >> $config_host_mak
6646 fi
6647 if test "$fuzzing" = "yes" ; then
6648   # If LIB_FUZZING_ENGINE is set, assume we are running on OSS-Fuzz, and the
6649   # needed CFLAGS have already been provided
6650   if test -z "${LIB_FUZZING_ENGINE+xxx}" ; then
6651     QEMU_CFLAGS="$QEMU_CFLAGS -fsanitize=fuzzer-no-link"
6652     FUZZ_EXE_LDFLAGS="-fsanitize=fuzzer"
6653   else
6654     FUZZ_EXE_LDFLAGS="$LIB_FUZZING_ENGINE"
6655   fi
6656 fi
6657
6658 if test "$plugins" = "yes" ; then
6659     echo "CONFIG_PLUGIN=y" >> $config_host_mak
6660     # Copy the export object list to the build dir
6661     if test "$ld_dynamic_list" = "yes" ; then
6662         echo "CONFIG_HAS_LD_DYNAMIC_LIST=yes" >> $config_host_mak
6663         ld_symbols=qemu-plugins-ld.symbols
6664         cp "$source_path/plugins/qemu-plugins.symbols" $ld_symbols
6665     elif test "$ld_exported_symbols_list" = "yes" ; then
6666         echo "CONFIG_HAS_LD_EXPORTED_SYMBOLS_LIST=yes" >> $config_host_mak
6667         ld64_symbols=qemu-plugins-ld64.symbols
6668         echo "# Automatically generated by configure - do not modify" > $ld64_symbols
6669         grep 'qemu_' "$source_path/plugins/qemu-plugins.symbols" | sed 's/;//g' | \
6670             sed -E 's/^[[:space:]]*(.*)/_\1/' >> $ld64_symbols
6671     else
6672         error_exit \
6673             "If \$plugins=yes, either \$ld_dynamic_list or " \
6674             "\$ld_exported_symbols_list should have been set to 'yes'."
6675     fi
6676 fi
6677
6678 if test -n "$gdb_bin" ; then
6679     echo "HAVE_GDB_BIN=$gdb_bin" >> $config_host_mak
6680 fi
6681
6682 if test "$secret_keyring" = "yes" ; then
6683   echo "CONFIG_SECRET_KEYRING=y" >> $config_host_mak
6684 fi
6685
6686 echo "ROMS=$roms" >> $config_host_mak
6687 echo "MAKE=$make" >> $config_host_mak
6688 echo "PYTHON=$python" >> $config_host_mak
6689 echo "GENISOIMAGE=$genisoimage" >> $config_host_mak
6690 echo "MESON=$meson" >> $config_host_mak
6691 echo "NINJA=$ninja" >> $config_host_mak
6692 echo "CC=$cc" >> $config_host_mak
6693 if $iasl -h > /dev/null 2>&1; then
6694   echo "CONFIG_IASL=$iasl" >> $config_host_mak
6695 fi
6696 echo "CXX=$cxx" >> $config_host_mak
6697 echo "OBJCC=$objcc" >> $config_host_mak
6698 echo "AR=$ar" >> $config_host_mak
6699 echo "ARFLAGS=$ARFLAGS" >> $config_host_mak
6700 echo "AS=$as" >> $config_host_mak
6701 echo "CCAS=$ccas" >> $config_host_mak
6702 echo "CPP=$cpp" >> $config_host_mak
6703 echo "OBJCOPY=$objcopy" >> $config_host_mak
6704 echo "LD=$ld" >> $config_host_mak
6705 echo "RANLIB=$ranlib" >> $config_host_mak
6706 echo "NM=$nm" >> $config_host_mak
6707 echo "PKG_CONFIG=$pkg_config_exe" >> $config_host_mak
6708 echo "WINDRES=$windres" >> $config_host_mak
6709 echo "CFLAGS_NOPIE=$CFLAGS_NOPIE" >> $config_host_mak
6710 echo "QEMU_CFLAGS=$QEMU_CFLAGS" >> $config_host_mak
6711 echo "QEMU_CXXFLAGS=$QEMU_CXXFLAGS" >> $config_host_mak
6712 echo "GLIB_CFLAGS=$glib_cflags" >> $config_host_mak
6713 echo "GLIB_LIBS=$glib_libs" >> $config_host_mak
6714 echo "QEMU_LDFLAGS=$QEMU_LDFLAGS" >> $config_host_mak
6715 echo "LD_I386_EMULATION=$ld_i386_emulation" >> $config_host_mak
6716 echo "EXESUF=$EXESUF" >> $config_host_mak
6717 echo "HOST_DSOSUF=$HOST_DSOSUF" >> $config_host_mak
6718 echo "LIBS_QGA=$libs_qga" >> $config_host_mak
6719 echo "TASN1_LIBS=$tasn1_libs" >> $config_host_mak
6720 echo "TASN1_CFLAGS=$tasn1_cflags" >> $config_host_mak
6721 if test "$gcov" = "yes" ; then
6722   echo "CONFIG_GCOV=y" >> $config_host_mak
6723 fi
6724
6725 if test "$fuzzing" != "no"; then
6726     echo "CONFIG_FUZZ=y" >> $config_host_mak
6727 fi
6728 echo "FUZZ_EXE_LDFLAGS=$FUZZ_EXE_LDFLAGS" >> $config_host_mak
6729
6730 if test "$rng_none" = "yes"; then
6731   echo "CONFIG_RNG_NONE=y" >> $config_host_mak
6732 fi
6733
6734 # use included Linux headers
6735 if test "$linux" = "yes" ; then
6736   mkdir -p linux-headers
6737   case "$cpu" in
6738   i386|x86_64|x32)
6739     linux_arch=x86
6740     ;;
6741   ppc|ppc64|ppc64le)
6742     linux_arch=powerpc
6743     ;;
6744   s390x)
6745     linux_arch=s390
6746     ;;
6747   aarch64)
6748     linux_arch=arm64
6749     ;;
6750   mips64)
6751     linux_arch=mips
6752     ;;
6753   *)
6754     # For most CPUs the kernel architecture name and QEMU CPU name match.
6755     linux_arch="$cpu"
6756     ;;
6757   esac
6758     # For non-KVM architectures we will not have asm headers
6759     if [ -e "$source_path/linux-headers/asm-$linux_arch" ]; then
6760       symlink "$source_path/linux-headers/asm-$linux_arch" linux-headers/asm
6761     fi
6762 fi
6763
6764 for target in $target_list; do
6765     target_dir="$target"
6766     target_name=$(echo $target | cut -d '-' -f 1)
6767     mkdir -p $target_dir
6768     case $target in
6769         *-user) symlink "../qemu-$target_name" "$target_dir/qemu-$target_name" ;;
6770         *) symlink "../qemu-system-$target_name" "$target_dir/qemu-system-$target_name" ;;
6771     esac
6772 done
6773
6774 echo "CONFIG_QEMU_INTERP_PREFIX=$interp_prefix" | sed 's/%M/@0@/' >> $config_host_mak
6775 if test "$default_targets" = "yes"; then
6776   echo "CONFIG_DEFAULT_TARGETS=y" >> $config_host_mak
6777 fi
6778
6779 if test "$numa" = "yes"; then
6780   echo "CONFIG_NUMA=y" >> $config_host_mak
6781   echo "NUMA_LIBS=$numa_libs" >> $config_host_mak
6782 fi
6783
6784 if test "$ccache_cpp2" = "yes"; then
6785   echo "export CCACHE_CPP2=y" >> $config_host_mak
6786 fi
6787
6788 if test "$safe_stack" = "yes"; then
6789   echo "CONFIG_SAFESTACK=y" >> $config_host_mak
6790 fi
6791
6792 # If we're using a separate build tree, set it up now.
6793 # DIRS are directories which we simply mkdir in the build tree;
6794 # LINKS are things to symlink back into the source tree
6795 # (these can be both files and directories).
6796 # Caution: do not add files or directories here using wildcards. This
6797 # will result in problems later if a new file matching the wildcard is
6798 # added to the source tree -- nothing will cause configure to be rerun
6799 # so the build tree will be missing the link back to the new file, and
6800 # tests might fail. Prefer to keep the relevant files in their own
6801 # directory and symlink the directory instead.
6802 # UNLINK is used to remove symlinks from older development versions
6803 # that might get into the way when doing "git update" without doing
6804 # a "make distclean" in between.
6805 DIRS="tests tests/tcg tests/tcg/lm32 tests/qapi-schema tests/qtest/libqos"
6806 DIRS="$DIRS tests/qtest tests/qemu-iotests tests/vm tests/fp tests/qgraph"
6807 DIRS="$DIRS docs docs/interop fsdev scsi"
6808 DIRS="$DIRS pc-bios/optionrom pc-bios/s390-ccw"
6809 DIRS="$DIRS roms/seabios"
6810 DIRS="$DIRS contrib/plugins/"
6811 LINKS="Makefile"
6812 LINKS="$LINKS tests/tcg/lm32/Makefile"
6813 LINKS="$LINKS tests/tcg/Makefile.target"
6814 LINKS="$LINKS pc-bios/optionrom/Makefile"
6815 LINKS="$LINKS pc-bios/s390-ccw/Makefile"
6816 LINKS="$LINKS roms/seabios/Makefile"
6817 LINKS="$LINKS pc-bios/qemu-icon.bmp"
6818 LINKS="$LINKS .gdbinit scripts" # scripts needed by relative path in .gdbinit
6819 LINKS="$LINKS tests/acceptance tests/data"
6820 LINKS="$LINKS tests/qemu-iotests/check"
6821 LINKS="$LINKS python"
6822 LINKS="$LINKS contrib/plugins/Makefile "
6823 UNLINK="pc-bios/keymaps"
6824 for bios_file in \
6825     $source_path/pc-bios/*.bin \
6826     $source_path/pc-bios/*.elf \
6827     $source_path/pc-bios/*.lid \
6828     $source_path/pc-bios/*.rom \
6829     $source_path/pc-bios/*.dtb \
6830     $source_path/pc-bios/*.img \
6831     $source_path/pc-bios/openbios-* \
6832     $source_path/pc-bios/u-boot.* \
6833     $source_path/pc-bios/edk2-*.fd.bz2 \
6834     $source_path/pc-bios/palcode-*
6835 do
6836     LINKS="$LINKS pc-bios/$(basename $bios_file)"
6837 done
6838 mkdir -p $DIRS
6839 for f in $LINKS ; do
6840     if [ -e "$source_path/$f" ]; then
6841         symlink "$source_path/$f" "$f"
6842     fi
6843 done
6844 for f in $UNLINK ; do
6845     if [ -L "$f" ]; then
6846         rm -f "$f"
6847     fi
6848 done
6849
6850 (for i in $cross_cc_vars; do
6851   export $i
6852 done
6853 export target_list source_path use_containers
6854 $source_path/tests/tcg/configure.sh)
6855
6856 # temporary config to build submodules
6857 for rom in seabios; do
6858     config_mak=roms/$rom/config.mak
6859     echo "# Automatically generated by configure - do not modify" > $config_mak
6860     echo "SRC_PATH=$source_path/roms/$rom" >> $config_mak
6861     echo "AS=$as" >> $config_mak
6862     echo "CCAS=$ccas" >> $config_mak
6863     echo "CC=$cc" >> $config_mak
6864     echo "BCC=bcc" >> $config_mak
6865     echo "CPP=$cpp" >> $config_mak
6866     echo "OBJCOPY=objcopy" >> $config_mak
6867     echo "IASL=$iasl" >> $config_mak
6868     echo "LD=$ld" >> $config_mak
6869     echo "RANLIB=$ranlib" >> $config_mak
6870 done
6871
6872 # set up qemu-iotests in this build directory
6873 iotests_common_env="tests/qemu-iotests/common.env"
6874
6875 echo "# Automatically generated by configure - do not modify" > "$iotests_common_env"
6876 echo >> "$iotests_common_env"
6877 echo "export PYTHON='$python'" >> "$iotests_common_env"
6878
6879 if test "$skip_meson" = no; then
6880 cross="config-meson.cross.new"
6881 meson_quote() {
6882     echo "'$(echo $* | sed "s/ /','/g")'"
6883 }
6884
6885 echo "# Automatically generated by configure - do not modify" > $cross
6886 echo "[properties]" >> $cross
6887 test -z "$cxx" && echo "link_language = 'c'" >> $cross
6888 echo "[built-in options]" >> $cross
6889 echo "c_args = [${CFLAGS:+$(meson_quote $CFLAGS)}]" >> $cross
6890 echo "cpp_args = [${CXXFLAGS:+$(meson_quote $CXXFLAGS)}]" >> $cross
6891 echo "c_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6892 echo "cpp_link_args = [${LDFLAGS:+$(meson_quote $LDFLAGS)}]" >> $cross
6893 echo "[binaries]" >> $cross
6894 echo "c = [$(meson_quote $cc)]" >> $cross
6895 test -n "$cxx" && echo "cpp = [$(meson_quote $cxx)]" >> $cross
6896 echo "ar = [$(meson_quote $ar)]" >> $cross
6897 echo "nm = [$(meson_quote $nm)]" >> $cross
6898 echo "pkgconfig = [$(meson_quote $pkg_config_exe)]" >> $cross
6899 echo "ranlib = [$(meson_quote $ranlib)]" >> $cross
6900 if has $sdl2_config; then
6901   echo "sdl2-config = [$(meson_quote $sdl2_config)]" >> $cross
6902 fi
6903 echo "strip = [$(meson_quote $strip)]" >> $cross
6904 echo "windres = [$(meson_quote $windres)]" >> $cross
6905 if test -n "$cross_prefix"; then
6906     cross_arg="--cross-file config-meson.cross"
6907     echo "[host_machine]" >> $cross
6908     if test "$mingw32" = "yes" ; then
6909         echo "system = 'windows'" >> $cross
6910     fi
6911     if test "$linux" = "yes" ; then
6912         echo "system = 'linux'" >> $cross
6913     fi
6914     case "$ARCH" in
6915         i386|x86_64)
6916             echo "cpu_family = 'x86'" >> $cross
6917             ;;
6918         ppc64le)
6919             echo "cpu_family = 'ppc64'" >> $cross
6920             ;;
6921         *)
6922             echo "cpu_family = '$ARCH'" >> $cross
6923             ;;
6924     esac
6925     echo "cpu = '$cpu'" >> $cross
6926     if test "$bigendian" = "yes" ; then
6927         echo "endian = 'big'" >> $cross
6928     else
6929         echo "endian = 'little'" >> $cross
6930     fi
6931 else
6932     cross_arg="--native-file config-meson.cross"
6933 fi
6934 mv $cross config-meson.cross
6935
6936 rm -rf meson-private meson-info meson-logs
6937 unset staticpic
6938 if ! version_ge "$($meson --version)" 0.56.0; then
6939   staticpic=$(if test "$pie" = yes; then echo true; else echo false; fi)
6940 fi
6941 NINJA=$ninja $meson setup \
6942         --prefix "$prefix" \
6943         --libdir "$libdir" \
6944         --libexecdir "$libexecdir" \
6945         --bindir "$bindir" \
6946         --includedir "$includedir" \
6947         --datadir "$datadir" \
6948         --mandir "$mandir" \
6949         --sysconfdir "$sysconfdir" \
6950         --localedir "$localedir" \
6951         --localstatedir "$local_statedir" \
6952         -Ddocdir="$docdir" \
6953         -Dqemu_firmwarepath="$firmwarepath" \
6954         -Dqemu_suffix="$qemu_suffix" \
6955         -Doptimization=$(if test "$debug" = yes; then echo 0; else echo 2; fi) \
6956         -Ddebug=$(if test "$debug_info" = yes; then echo true; else echo false; fi) \
6957         -Dwerror=$(if test "$werror" = yes; then echo true; else echo false; fi) \
6958         -Dstrip=$(if test "$strip_opt" = yes; then echo true; else echo false; fi) \
6959         -Db_pie=$(if test "$pie" = yes; then echo true; else echo false; fi) \
6960         ${staticpic:+-Db_staticpic=$staticpic} \
6961         -Db_coverage=$(if test "$gcov" = yes; then echo true; else echo false; fi) \
6962         -Dmalloc=$malloc -Dmalloc_trim=$malloc_trim -Dsparse=$sparse \
6963         -Dkvm=$kvm -Dhax=$hax -Dwhpx=$whpx -Dhvf=$hvf \
6964         -Dxen=$xen -Dxen_pci_passthrough=$xen_pci_passthrough -Dtcg=$tcg \
6965         -Dcocoa=$cocoa -Dmpath=$mpath -Dsdl=$sdl -Dsdl_image=$sdl_image \
6966         -Dvnc=$vnc -Dvnc_sasl=$vnc_sasl -Dvnc_jpeg=$vnc_jpeg -Dvnc_png=$vnc_png \
6967         -Dgettext=$gettext -Dxkbcommon=$xkbcommon -Du2f=$u2f -Dvirtiofsd=$virtiofsd \
6968         -Dcapstone=$capstone -Dslirp=$slirp -Dfdt=$fdt \
6969         -Diconv=$iconv -Dcurses=$curses -Dlibudev=$libudev\
6970         -Ddocs=$docs -Dsphinx_build=$sphinx_build -Dinstall_blobs=$blobs \
6971         -Dvhost_user_blk_server=$vhost_user_blk_server \
6972         -Dfuse=$fuse -Dfuse_lseek=$fuse_lseek \
6973         $cross_arg \
6974         "$PWD" "$source_path"
6975
6976 if test "$?" -ne 0 ; then
6977     error_exit "meson setup failed"
6978 fi
6979 fi
6980
6981 if test -n "${deprecated_features}"; then
6982     echo "Warning, deprecated features enabled."
6983     echo "Please see docs/system/deprecated.rst"
6984     echo "  features: ${deprecated_features}"
6985 fi
6986
6987 # Save the configure command line for later reuse.
6988 cat <<EOD >config.status
6989 #!/bin/sh
6990 # Generated by configure.
6991 # Run this file to recreate the current configuration.
6992 # Compiler output produced by configure, useful for debugging
6993 # configure, is in config.log if it exists.
6994 EOD
6995
6996 preserve_env() {
6997     envname=$1
6998
6999     eval envval=\$$envname
7000
7001     if test -n "$envval"
7002     then
7003         echo "$envname='$envval'" >> config.status
7004         echo "export $envname" >> config.status
7005     else
7006         echo "unset $envname" >> config.status
7007     fi
7008 }
7009
7010 # Preserve various env variables that influence what
7011 # features/build target configure will detect
7012 preserve_env AR
7013 preserve_env AS
7014 preserve_env CC
7015 preserve_env CPP
7016 preserve_env CXX
7017 preserve_env INSTALL
7018 preserve_env LD
7019 preserve_env LD_LIBRARY_PATH
7020 preserve_env LIBTOOL
7021 preserve_env MAKE
7022 preserve_env NM
7023 preserve_env OBJCOPY
7024 preserve_env PATH
7025 preserve_env PKG_CONFIG
7026 preserve_env PKG_CONFIG_LIBDIR
7027 preserve_env PKG_CONFIG_PATH
7028 preserve_env PYTHON
7029 preserve_env SDL2_CONFIG
7030 preserve_env SMBD
7031 preserve_env STRIP
7032 preserve_env WINDRES
7033
7034 printf "exec" >>config.status
7035 for i in "$0" "$@"; do
7036   test "$i" = --skip-meson || printf " '%s'" "$i" >>config.status
7037 done
7038 echo ' "$@"' >>config.status
7039 chmod +x config.status
7040
7041 rm -r "$TMPDIR1"