3 # qemu configure script (c) 2003 Fabrice Bellard
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
11 # Temporary directory used for files created while
12 # configure runs. Since it is in the build directory
13 # we can safely blow away any previous version of it
14 # (and we need not jump through hoops to try to delete
15 # it when configure exits.)
20 echo "ERROR: failed to create temporary directory"
25 TMPC="${TMPDIR1}/${TMPB}.c"
26 TMPO="${TMPDIR1}/${TMPB}.o"
27 TMPCXX="${TMPDIR1}/${TMPB}.cxx"
28 TMPL="${TMPDIR1}/${TMPB}.lo"
29 TMPA="${TMPDIR1}/lib${TMPB}.la"
30 TMPE="${TMPDIR1}/${TMPB}.exe"
34 # Print a helpful header at the top of config.log
35 echo "# QEMU configure log $(date)" >> config.log
36 printf "# Configured with:" >> config.log
37 printf " '%s'" "$0" "$@" >> config.log
39 echo "#" >> config.log
44 while test -n "$2"; do
53 # Run the compiler, capturing its output to the log. First argument
54 # is compiler binary to execute.
57 echo $compiler "$@" >> config.log
58 $compiler "$@" >> config.log 2>&1 || return $?
59 # Test passed. If this is an --enable-werror build, rerun
60 # the test with -Werror and bail out if it fails. This
61 # makes warning-generating-errors in configure test code
62 # obvious to developers.
63 if test "$werror" != "yes"; then
66 # Don't bother rerunning the compile if we were already using -Werror
72 echo $compiler -Werror "$@" >> config.log
73 $compiler -Werror "$@" >> config.log 2>&1 && return $?
74 error_exit "configure test passed without -Werror but failed with -Werror." \
75 "This is probably a bug in the configure script. The failing command" \
76 "will be at the bottom of config.log." \
77 "You can run configure with --disable-werror to bypass this check."
81 do_compiler "$cc" "$@"
85 do_compiler "$cxx" "$@"
89 # Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
90 # options which some versions of GCC's C++ compiler complain about
91 # because they only make sense for C programs.
93 for arg in $QEMU_CFLAGS; do
95 -Wstrict-prototypes|-Wmissing-prototypes|-Wnested-externs|\
96 -Wold-style-declaration|-Wold-style-definition|-Wredundant-decls)
99 QEMU_CXXFLAGS=${QEMU_CXXFLAGS:+$QEMU_CXXFLAGS }$arg
107 do_cc $QEMU_CFLAGS $local_cflags -c -o $TMPO $TMPC
113 do_cc $QEMU_CFLAGS $local_cflags -o $TMPE $TMPC $LDFLAGS $local_ldflags
119 # Run the compiler, capturing its output to the log.
120 echo $libtool $mode --tag=CC $cc "$@" >> config.log
121 $libtool $mode --tag=CC $cc "$@" >> config.log 2>&1 || return $?
122 # Test passed. If this is an --enable-werror build, rerun
123 # the test with -Werror and bail out if it fails. This
124 # makes warning-generating-errors in configure test code
125 # obvious to developers.
126 if test "$werror" != "yes"; then
129 # Don't bother rerunning the compile if we were already using -Werror
135 echo $libtool $mode --tag=CC $cc -Werror "$@" >> config.log
136 $libtool $mode --tag=CC $cc -Werror "$@" >> config.log 2>&1 && return $?
137 error_exit "configure test passed without -Werror but failed with -Werror." \
138 "This is probably a bug in the configure script. The failing command" \
139 "will be at the bottom of config.log." \
140 "You can run configure with --disable-werror to bypass this check."
144 do_libtool --mode=compile $QEMU_CFLAGS -c -fPIE -DPIE -o $TMPO $TMPC || return $?
145 do_libtool --mode=link $LDFLAGS -o $TMPA $TMPL -rpath /usr/local/lib
148 # symbolically link $1 to $2. Portable version of "ln -sf".
151 mkdir -p "$(dirname "$2")"
155 # check whether a command is available to this shell (may be either an
156 # executable or a builtin)
158 type "$1" >/dev/null 2>&1
161 # search for an executable in PATH
167 # pathname has a dir component?
168 if [ "${local_command#*/}" != "$local_command" ]; then
169 if [ -x "$local_command" ] && [ ! -d "$local_command" ]; then
170 echo "$local_command"
174 if [ -z "$local_command" ]; then
179 for local_dir in $PATH; do
180 if [ -x "$local_dir/$local_command" ] && [ ! -d "$local_dir/$local_command" ]; then
181 echo "$local_dir/$local_command"
182 IFS="${local_ifs:-$(printf ' \t\n')}"
187 IFS="${local_ifs:-$(printf ' \t\n')}"
192 echo "$trace_backends" | grep "$1" >/dev/null
196 source_path=`dirname "$0"`
199 interp_prefix="/usr/gnemul/qemu-%M"
203 block_drv_rw_whitelist=""
204 block_drv_ro_whitelist=""
210 cc_i386=i386-pc-linux-gnu-gcc
215 # Don't accept a target_list environment variable.
218 # Default value for a variable defining feature "foo".
219 # * foo="no" feature will only be used if --enable-foo arg is given
220 # * foo="" feature will be searched for, and if found, will be used
221 # unless --disable-foo is given
222 # * foo="yes" this value will only be set by --enable-foo flag.
223 # feature will searched for,
224 # if not found, configure exits with error
226 # Always add --enable-foo and --disable-foo command line args.
227 # Distributions want to ensure that several features are compiled in, and it
228 # is impossible without a --enable-foo that exits if a feature is not found.
251 xen_pci_passthrough=""
273 LDFLAGS_SHARED="-shared"
276 mandir="\${prefix}/share/man"
277 datadir="\${prefix}/share"
278 qemu_docdir="\${prefix}/share/doc/qemu"
279 bindir="\${prefix}/bin"
280 libdir="\${prefix}/lib"
281 libexecdir="\${prefix}/libexec"
282 includedir="\${prefix}/include"
283 sysconfdir="\${prefix}/etc"
284 local_statedir="\${prefix}/var"
316 guest_agent_with_vss="no"
317 guest_agent_ntddscsi="no"
328 glusterfs_discard="no"
329 glusterfs_zerofill="no"
342 # parse CC options first
344 optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
346 --cross-prefix=*) cross_prefix="$optarg"
350 --cxx=*) CXX="$optarg"
352 --source-path=*) source_path="$optarg"
354 --cpu=*) cpu="$optarg"
356 --extra-cflags=*) QEMU_CFLAGS="$QEMU_CFLAGS $optarg"
357 EXTRA_CFLAGS="$optarg"
359 --extra-ldflags=*) LDFLAGS="$LDFLAGS $optarg"
360 EXTRA_LDFLAGS="$optarg"
362 --enable-debug-info) debug_info="yes"
364 --disable-debug-info) debug_info="no"
369 # Using uname is really, really broken. Once we have the right set of checks
370 # we can eliminate its usage altogether.
372 # Preferred compiler:
374 # ${cross_prefix}gcc (if cross-prefix specified)
376 if test -z "${CC}${cross_prefix}"; then
379 cc="${CC-${cross_prefix}gcc}"
382 if test -z "${CXX}${cross_prefix}"; then
385 cxx="${CXX-${cross_prefix}g++}"
388 ar="${AR-${cross_prefix}ar}"
389 as="${AS-${cross_prefix}as}"
391 objcopy="${OBJCOPY-${cross_prefix}objcopy}"
392 ld="${LD-${cross_prefix}ld}"
393 libtool="${LIBTOOL-${cross_prefix}libtool}"
394 nm="${NM-${cross_prefix}nm}"
395 strip="${STRIP-${cross_prefix}strip}"
396 windres="${WINDRES-${cross_prefix}windres}"
397 pkg_config_exe="${PKG_CONFIG-${cross_prefix}pkg-config}"
399 "${pkg_config_exe}" ${QEMU_PKG_CONFIG_FLAGS} "$@"
401 pkg_config=query_pkg_config
402 sdl_config="${SDL_CONFIG-${cross_prefix}sdl-config}"
403 sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
405 # If the user hasn't specified ARFLAGS, default to 'rv', just as make does.
406 ARFLAGS="${ARFLAGS-rv}"
408 # default flags for all hosts
409 QEMU_CFLAGS="-fno-strict-aliasing -fno-common $QEMU_CFLAGS"
410 QEMU_CFLAGS="-Wall -Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
411 QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
412 QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE $QEMU_CFLAGS"
413 QEMU_INCLUDES="-I. -I\$(SRC_PATH) -I\$(SRC_PATH)/include"
414 if test "$debug_info" = "yes"; then
416 LDFLAGS="-g $LDFLAGS"
419 # make source path absolute
420 source_path=`cd "$source_path"; pwd`
422 # running configure in the source tree?
423 # we know that's the case if configure is there.
424 if test -f "./configure"; then
425 pwd_is_source_path="y"
427 pwd_is_source_path="n"
433 #error $1 not defined
435 int main(void) { return 0; }
443 int main(void) { return 0; }
450 int main(void) { return 0; }
454 if check_define __linux__ ; then
456 elif check_define _WIN32 ; then
458 elif check_define __OpenBSD__ ; then
460 elif check_define __sun__ ; then
462 elif check_define __HAIKU__ ; then
468 # Some host OSes need non-standard checks for which CPU to use.
469 # Note that these checks are broken for cross-compilation: if you're
470 # cross-compiling to one of these OSes then you'll need to specify
471 # the correct CPU with the --cpu option.
474 # on Leopard most of the system is 32-bit, so we have to ask the kernel if we can
475 # run 64-bit userspace code.
476 # If the user didn't specify a CPU explicitly and the kernel says this is
477 # 64 bit hw, then assume x86_64. Otherwise fall through to the usual detection code.
478 if test -z "$cpu" && test "$(sysctl -n hw.optional.x86_64)" = "1"; then
483 # `uname -m` returns i86pc even on an x86_64 box, so default based on isainfo
484 if test -z "$cpu" && test "$(isainfo -k)" = "amd64"; then
489 if test ! -z "$cpu" ; then
490 # command line argument
492 elif check_define __i386__ ; then
494 elif check_define __x86_64__ ; then
495 if check_define __ILP32__ ; then
500 elif check_define __sparc__ ; then
501 if check_define __arch64__ ; then
506 elif check_define _ARCH_PPC ; then
507 if check_define _ARCH_PPC64 ; then
512 elif check_define __mips__ ; then
514 elif check_define __ia64__ ; then
516 elif check_define __s390__ ; then
517 if check_define __s390x__ ; then
522 elif check_define __arm__ ; then
524 elif check_define __aarch64__ ; then
526 elif check_define __hppa__ ; then
533 # Normalise host CPU name and set ARCH.
534 # Note that this case should only have supported host CPUs, not guests.
536 ia64|ppc|ppc64|s390|s390x|sparc64|x32)
539 i386|i486|i586|i686|i86pc|BePC)
558 # This will result in either an error or falling back to TCI later
562 if test -z "$ARCH"; then
568 # host *BSD for user mode
574 QEMU_CFLAGS="-mno-cygwin $QEMU_CFLAGS"
575 audio_possible_drivers="sdl"
580 audio_possible_drivers="dsound sdl"
581 if check_include dsound.h; then
582 audio_drv_list="dsound"
590 audio_possible_drivers="oss sdl pa"
596 audio_possible_drivers="oss sdl pa"
597 # needed for kinfo_getvmmap(3) in libutil.h
599 netmap="" # enable netmap autodetect
600 HOST_VARIANT_DIR="freebsd"
606 audio_possible_drivers="oss sdl pa"
607 HOST_VARIANT_DIR="dragonfly"
613 audio_possible_drivers="oss sdl"
615 HOST_VARIANT_DIR="netbsd"
621 audio_possible_drivers="sdl"
622 HOST_VARIANT_DIR="openbsd"
627 LDFLAGS_SHARED="-bundle -undefined dynamic_lookup"
628 if [ "$cpu" = "x86_64" ] ; then
629 QEMU_CFLAGS="-arch x86_64 $QEMU_CFLAGS"
630 LDFLAGS="-arch x86_64 $LDFLAGS"
633 audio_drv_list="coreaudio"
634 audio_possible_drivers="coreaudio sdl"
635 LDFLAGS="-framework CoreFoundation -framework IOKit $LDFLAGS"
636 libs_softmmu="-F/System/Library/Frameworks -framework Cocoa -framework IOKit $libs_softmmu"
637 # Disable attempts to use ObjectiveC features in os/object.h since they
638 # won't work when we're compiling with gcc as a C compiler.
639 QEMU_CFLAGS="-DOS_OBJECT_USE_OBJC=0 $QEMU_CFLAGS"
640 HOST_VARIANT_DIR="darwin"
645 install="${INSTALL-ginstall}"
647 smbd="${SMBD-/usr/sfw/sbin/smbd}"
648 needs_libsunmath="no"
649 solarisrev=`uname -r | cut -f2 -d.`
650 if [ "$cpu" = "i386" -o "$cpu" = "x86_64" ] ; then
651 if test "$solarisrev" -le 9 ; then
652 if test -f /opt/SUNWspro/prod/lib/libsunmath.so.1; then
653 needs_libsunmath="yes"
654 QEMU_CFLAGS="-I/opt/SUNWspro/prod/include/cc $QEMU_CFLAGS"
655 LDFLAGS="-L/opt/SUNWspro/prod/lib -R/opt/SUNWspro/prod/lib $LDFLAGS"
656 LIBS="-lsunmath $LIBS"
658 error_exit "QEMU will not link correctly on Solaris 8/X86 or 9/x86 without" \
659 "libsunmath from the Sun Studio compilers tools, due to a lack of" \
660 "C99 math features in libm.so in Solaris 8/x86 and Solaris 9/x86" \
661 "Studio 11 can be downloaded from www.sun.com."
665 if test -f /usr/include/sys/soundcard.h ; then
668 audio_possible_drivers="oss sdl"
669 # needed for CMSG_ macros in sys/socket.h
670 QEMU_CFLAGS="-D_XOPEN_SOURCE=600 $QEMU_CFLAGS"
671 # needed for TIOCWIN* defines in termios.h
672 QEMU_CFLAGS="-D__EXTENSIONS__ $QEMU_CFLAGS"
673 QEMU_CFLAGS="-std=gnu99 $QEMU_CFLAGS"
674 solarisnetlibs="-lsocket -lnsl -lresolv"
675 LIBS="$solarisnetlibs $LIBS"
676 libs_qga="$solarisnetlibs $libs_qga"
684 QEMU_CFLAGS="-DB_USE_POSITIVE_POSIX_ERRORS $QEMU_CFLAGS"
685 LIBS="-lposix_error_mapper -lnetwork $LIBS"
689 audio_possible_drivers="oss alsa sdl pa"
695 QEMU_INCLUDES="-I\$(SRC_PATH)/linux-headers -I$(pwd)/linux-headers $QEMU_INCLUDES"
699 if [ "$bsd" = "yes" ] ; then
700 if [ "$darwin" != "yes" ] ; then
705 : ${make=${MAKE-make}}
706 : ${install=${INSTALL-install}}
707 : ${python=${PYTHON-python}}
708 : ${smbd=${SMBD-/usr/sbin/smbd}}
710 # Default objcc to clang if available, otherwise use CC
717 if test "$mingw32" = "yes" ; then
720 QEMU_CFLAGS="-DWIN32_LEAN_AND_MEAN -DWINVER=0x501 $QEMU_CFLAGS"
721 # enable C99/POSIX format strings (needs mingw32-runtime 3.15 or later)
722 QEMU_CFLAGS="-D__USE_MINGW_ANSI_STDIO=1 $QEMU_CFLAGS"
723 LIBS="-lwinmm -lws2_32 -liphlpapi $LIBS"
725 if compile_prog "" "-liberty" ; then
726 LIBS="-liberty $LIBS"
728 prefix="c:/Program Files/QEMU"
731 qemu_docdir="\${prefix}"
733 sysconfdir="\${prefix}"
736 libs_qga="-lws2_32 -lwinmm -lpowrprof -liphlpapi $libs_qga"
742 optarg=`expr "x$opt" : 'x[^=]*=\(.*\)'`
744 --help|-h) show_help=yes
746 --version|-V) exec cat $source_path/VERSION
748 --prefix=*) prefix="$optarg"
750 --interp-prefix=*) interp_prefix="$optarg"
758 --host-cc=*) host_cc="$optarg"
762 --iasl=*) iasl="$optarg"
764 --objcc=*) objcc="$optarg"
766 --make=*) make="$optarg"
768 --install=*) install="$optarg"
770 --python=*) python="$optarg"
772 --gcov=*) gcov_tool="$optarg"
774 --smbd=*) smbd="$optarg"
782 --disable-debug-info)
789 --target-list=*) target_list="$optarg"
791 --enable-trace-backends=*) trace_backends="$optarg"
793 # XXX: backwards compatibility
794 --enable-trace-backend=*) trace_backends="$optarg"
796 --with-trace-file=*) trace_file="$optarg"
798 --enable-gprof) gprof="yes"
800 --enable-gcov) gcov="yes"
804 LDFLAGS="-static $LDFLAGS"
805 QEMU_PKG_CONFIG_FLAGS="--static $QEMU_PKG_CONFIG_FLAGS"
807 --mandir=*) mandir="$optarg"
809 --bindir=*) bindir="$optarg"
811 --libdir=*) libdir="$optarg"
813 --libexecdir=*) libexecdir="$optarg"
815 --includedir=*) includedir="$optarg"
817 --datadir=*) datadir="$optarg"
819 --with-confsuffix=*) confsuffix="$optarg"
821 --docdir=*) qemu_docdir="$optarg"
823 --sysconfdir=*) sysconfdir="$optarg"
825 --localstatedir=*) local_statedir="$optarg"
827 --sbindir=*|--sharedstatedir=*|\
828 --oldincludedir=*|--datarootdir=*|--infodir=*|--localedir=*|\
829 --htmldir=*|--dvidir=*|--pdfdir=*|--psdir=*)
830 # These switches are silently ignored, for compatibility with
831 # autoconf-generated configure scripts. This allows QEMU's
832 # configure to be used by RPM and similar macros that set
833 # lots of directory switches by default.
835 --with-system-pixman) pixman="system"
837 --without-system-pixman) pixman="internal"
839 --without-pixman) pixman="none"
841 --disable-sdl) sdl="no"
843 --enable-sdl) sdl="yes"
845 --with-sdlabi=*) sdlabi="$optarg"
847 --disable-qom-cast-debug) qom_cast_debug="no"
849 --enable-qom-cast-debug) qom_cast_debug="yes"
851 --disable-virtfs) virtfs="no"
853 --enable-virtfs) virtfs="yes"
855 --disable-vnc) vnc="no"
857 --enable-vnc) vnc="yes"
859 --oss-lib=*) oss_lib="$optarg"
861 --audio-drv-list=*) audio_drv_list="$optarg"
863 --block-drv-rw-whitelist=*|--block-drv-whitelist=*) block_drv_rw_whitelist=`echo "$optarg" | sed -e 's/,/ /g'`
865 --block-drv-ro-whitelist=*) block_drv_ro_whitelist=`echo "$optarg" | sed -e 's/,/ /g'`
867 --enable-debug-tcg) debug_tcg="yes"
869 --disable-debug-tcg) debug_tcg="no"
872 # Enable debugging options that aren't excessively noisy
877 --enable-sparse) sparse="yes"
879 --disable-sparse) sparse="no"
881 --disable-strip) strip_opt="no"
883 --disable-vnc-tls) vnc_tls="no"
885 --enable-vnc-tls) vnc_tls="yes"
887 --disable-vnc-sasl) vnc_sasl="no"
889 --enable-vnc-sasl) vnc_sasl="yes"
891 --disable-vnc-jpeg) vnc_jpeg="no"
893 --enable-vnc-jpeg) vnc_jpeg="yes"
895 --disable-vnc-png) vnc_png="no"
897 --enable-vnc-png) vnc_png="yes"
899 --disable-slirp) slirp="no"
901 --disable-uuid) uuid="no"
903 --enable-uuid) uuid="yes"
905 --disable-vde) vde="no"
907 --enable-vde) vde="yes"
909 --disable-netmap) netmap="no"
911 --enable-netmap) netmap="yes"
913 --disable-xen) xen="no"
915 --enable-xen) xen="yes"
917 --disable-xen-pci-passthrough) xen_pci_passthrough="no"
919 --enable-xen-pci-passthrough) xen_pci_passthrough="yes"
921 --disable-brlapi) brlapi="no"
923 --enable-brlapi) brlapi="yes"
925 --disable-bluez) bluez="no"
927 --enable-bluez) bluez="yes"
929 --disable-kvm) kvm="no"
931 --enable-kvm) kvm="yes"
933 --disable-tcg-interpreter) tcg_interpreter="no"
935 --enable-tcg-interpreter) tcg_interpreter="yes"
937 --disable-cap-ng) cap_ng="no"
939 --enable-cap-ng) cap_ng="yes"
941 --disable-spice) spice="no"
943 --enable-spice) spice="yes"
945 --disable-libiscsi) libiscsi="no"
947 --enable-libiscsi) libiscsi="yes"
949 --disable-libnfs) libnfs="no"
951 --enable-libnfs) libnfs="yes"
953 --enable-profiler) profiler="yes"
955 --disable-cocoa) cocoa="no"
960 audio_drv_list="coreaudio `echo $audio_drv_list | sed s,coreaudio,,g`"
962 --disable-system) softmmu="no"
964 --enable-system) softmmu="yes"
971 --disable-linux-user) linux_user="no"
973 --enable-linux-user) linux_user="yes"
975 --disable-bsd-user) bsd_user="no"
977 --enable-bsd-user) bsd_user="yes"
979 --enable-guest-base) guest_base="yes"
981 --disable-guest-base) guest_base="no"
983 --enable-pie) pie="yes"
985 --disable-pie) pie="no"
987 --enable-werror) werror="yes"
989 --disable-werror) werror="no"
991 --enable-stack-protector) stack_protector="yes"
993 --disable-stack-protector) stack_protector="no"
995 --disable-curses) curses="no"
997 --enable-curses) curses="yes"
999 --disable-curl) curl="no"
1001 --enable-curl) curl="yes"
1003 --disable-fdt) fdt="no"
1005 --enable-fdt) fdt="yes"
1007 --disable-linux-aio) linux_aio="no"
1009 --enable-linux-aio) linux_aio="yes"
1011 --disable-attr) attr="no"
1013 --enable-attr) attr="yes"
1015 --disable-blobs) blobs="no"
1017 --with-pkgversion=*) pkgversion=" ($optarg)"
1019 --with-coroutine=*) coroutine="$optarg"
1021 --disable-coroutine-pool) coroutine_pool="no"
1023 --enable-coroutine-pool) coroutine_pool="yes"
1025 --disable-docs) docs="no"
1027 --enable-docs) docs="yes"
1029 --disable-vhost-net) vhost_net="no"
1031 --enable-vhost-net) vhost_net="yes"
1033 --disable-vhost-scsi) vhost_scsi="no"
1035 --enable-vhost-scsi) vhost_scsi="yes"
1037 --disable-opengl) opengl="no"
1039 --enable-opengl) opengl="yes"
1041 --disable-rbd) rbd="no"
1043 --enable-rbd) rbd="yes"
1045 --disable-xfsctl) xfs="no"
1047 --enable-xfsctl) xfs="yes"
1049 --disable-smartcard-nss) smartcard_nss="no"
1051 --enable-smartcard-nss) smartcard_nss="yes"
1053 --disable-libusb) libusb="no"
1055 --enable-libusb) libusb="yes"
1057 --disable-usb-redir) usb_redir="no"
1059 --enable-usb-redir) usb_redir="yes"
1061 --disable-zlib-test) zlib="no"
1063 --disable-lzo) lzo="no"
1065 --enable-lzo) lzo="yes"
1067 --disable-snappy) snappy="no"
1069 --enable-snappy) snappy="yes"
1071 --disable-bzip2) bzip2="no"
1073 --enable-bzip2) bzip2="yes"
1075 --enable-guest-agent) guest_agent="yes"
1077 --disable-guest-agent) guest_agent="no"
1079 --enable-guest-agent-msi) guest_agent_msi="yes"
1081 --disable-guest-agent-msi) guest_agent_msi="no"
1083 --with-vss-sdk) vss_win32_sdk=""
1085 --with-vss-sdk=*) vss_win32_sdk="$optarg"
1087 --without-vss-sdk) vss_win32_sdk="no"
1089 --with-win-sdk) win_sdk=""
1091 --with-win-sdk=*) win_sdk="$optarg"
1093 --without-win-sdk) win_sdk="no"
1095 --enable-tools) want_tools="yes"
1097 --disable-tools) want_tools="no"
1099 --enable-seccomp) seccomp="yes"
1101 --disable-seccomp) seccomp="no"
1103 --disable-glusterfs) glusterfs="no"
1105 --enable-glusterfs) glusterfs="yes"
1107 --disable-archipelago) archipelago="no"
1109 --enable-archipelago) archipelago="yes"
1111 --disable-virtio-blk-data-plane|--enable-virtio-blk-data-plane)
1112 echo "$0: $opt is obsolete, virtio-blk data-plane is always on" >&2
1114 --disable-gtk) gtk="no"
1116 --enable-gtk) gtk="yes"
1118 --disable-gnutls) gnutls="no"
1120 --enable-gnutls) gnutls="yes"
1122 --enable-rdma) rdma="yes"
1124 --disable-rdma) rdma="no"
1126 --with-gtkabi=*) gtkabi="$optarg"
1128 --disable-vte) vte="no"
1130 --enable-vte) vte="yes"
1132 --disable-tpm) tpm="no"
1134 --enable-tpm) tpm="yes"
1136 --disable-libssh2) libssh2="no"
1138 --enable-libssh2) libssh2="yes"
1140 --enable-vhdx) vhdx="yes"
1142 --disable-vhdx) vhdx="no"
1144 --disable-numa) numa="no"
1146 --enable-numa) numa="yes"
1148 --disable-tcmalloc) tcmalloc="no"
1150 --enable-tcmalloc) tcmalloc="yes"
1153 echo "ERROR: unknown option $opt"
1154 echo "Try '$0 --help' for more information"
1160 if ! has $python; then
1161 error_exit "Python not found. Use --python=/path/to/python"
1164 # Note that if the Python conditional here evaluates True we will exit
1165 # with status 1 which is a shell 'false' value.
1166 if ! $python -c 'import sys; sys.exit(sys.version_info < (2,4) or sys.version_info >= (3,))'; then
1167 error_exit "Cannot use '$python', Python 2.4 or later is required." \
1168 "Note that Python 3 or later is not yet supported." \
1169 "Use --python=/path/to/python to specify a supported Python."
1172 # The -B switch was added in Python 2.6.
1173 # If it is supplied, compiled files are not written.
1174 # Use it for Python versions which support it.
1175 if $python -B -c 'import sys; sys.exit(0)' 2>/dev/null; then
1182 LDFLAGS="-m32 $LDFLAGS"
1186 LDFLAGS="-m64 $LDFLAGS"
1189 LDFLAGS="-m32 $LDFLAGS"
1190 CPU_CFLAGS="-m32 -mcpu=ultrasparc"
1193 LDFLAGS="-m64 $LDFLAGS"
1194 CPU_CFLAGS="-m64 -mcpu=ultrasparc"
1198 LDFLAGS="-m31 $LDFLAGS"
1202 LDFLAGS="-m64 $LDFLAGS"
1206 LDFLAGS="-m32 $LDFLAGS"
1207 cc_i386='$(CC) -m32'
1211 LDFLAGS="-m64 $LDFLAGS"
1212 cc_i386='$(CC) -m32'
1216 LDFLAGS="-mx32 $LDFLAGS"
1217 cc_i386='$(CC) -m32'
1219 # No special flags required for other host CPUs
1222 QEMU_CFLAGS="$CPU_CFLAGS $QEMU_CFLAGS"
1223 EXTRA_CFLAGS="$CPU_CFLAGS $EXTRA_CFLAGS"
1225 default_target_list=""
1229 if [ "$softmmu" = "yes" ]; then
1230 mak_wilds="${mak_wilds} $source_path/default-configs/*-softmmu.mak"
1232 if [ "$linux_user" = "yes" ]; then
1233 mak_wilds="${mak_wilds} $source_path/default-configs/*-linux-user.mak"
1235 if [ "$bsd_user" = "yes" ]; then
1236 mak_wilds="${mak_wilds} $source_path/default-configs/*-bsd-user.mak"
1239 for config in $mak_wilds; do
1240 default_target_list="${default_target_list} $(basename "$config" .mak)"
1243 if test x"$show_help" = x"yes" ; then
1246 Usage: configure [options]
1247 Options: [defaults in brackets after descriptions]
1250 --help print this message
1251 --prefix=PREFIX install in PREFIX [$prefix]
1252 --interp-prefix=PREFIX where to find shared libraries, etc.
1253 use %M for cpu name [$interp_prefix]
1254 --target-list=LIST set target list (default: build everything)
1255 $(echo Available targets: $default_target_list | \
1256 fold -s -w 53 | sed -e 's/^/ /')
1258 Advanced options (experts only):
1259 --source-path=PATH path of source code [$source_path]
1260 --cross-prefix=PREFIX use PREFIX for compile tools [$cross_prefix]
1261 --cc=CC use C compiler CC [$cc]
1262 --iasl=IASL use ACPI compiler IASL [$iasl]
1263 --host-cc=CC use C compiler CC [$host_cc] for code run at
1265 --cxx=CXX use C++ compiler CXX [$cxx]
1266 --objcc=OBJCC use Objective-C compiler OBJCC [$objcc]
1267 --extra-cflags=CFLAGS append extra C compiler flags QEMU_CFLAGS
1268 --extra-ldflags=LDFLAGS append extra linker flags LDFLAGS
1269 --make=MAKE use specified make [$make]
1270 --install=INSTALL use specified install [$install]
1271 --python=PYTHON use specified python [$python]
1272 --smbd=SMBD use specified smbd [$smbd]
1273 --static enable static build [$static]
1274 --mandir=PATH install man pages in PATH
1275 --datadir=PATH install firmware in PATH$confsuffix
1276 --docdir=PATH install documentation in PATH$confsuffix
1277 --bindir=PATH install binaries in PATH
1278 --libdir=PATH install libraries in PATH
1279 --sysconfdir=PATH install config in PATH$confsuffix
1280 --localstatedir=PATH install local state in PATH (set at runtime on win32)
1281 --with-confsuffix=SUFFIX suffix for QEMU data inside datadir/libdir/sysconfdir [$confsuffix]
1282 --enable-debug enable common debug build options
1283 --disable-strip disable stripping binaries
1284 --disable-werror disable compilation abort on warning
1285 --disable-stack-protector disable compiler-provided stack protection
1286 --audio-drv-list=LIST set audio drivers list:
1287 Available drivers: $audio_possible_drivers
1288 --block-drv-whitelist=L Same as --block-drv-rw-whitelist=L
1289 --block-drv-rw-whitelist=L
1290 set block driver read-write whitelist
1291 (affects only QEMU, not qemu-img)
1292 --block-drv-ro-whitelist=L
1293 set block driver read-only whitelist
1294 (affects only QEMU, not qemu-img)
1295 --enable-trace-backends=B Set trace backend
1296 Available backends: $($python $source_path/scripts/tracetool.py --list-backends)
1297 --with-trace-file=NAME Full PATH,NAME of file to store traces
1299 --disable-slirp disable SLIRP userspace network connectivity
1300 --enable-tcg-interpreter enable TCG with bytecode interpreter (TCI)
1301 --oss-lib path to OSS library
1302 --cpu=CPU Build for host CPU [$cpu]
1303 --with-coroutine=BACKEND coroutine backend. Supported options:
1304 gthread, ucontext, sigaltstack, windows
1305 --enable-gcov enable test coverage analysis with gcov
1306 --gcov=GCOV use specified gcov [$gcov_tool]
1307 --disable-blobs disable installing provided firmware blobs
1308 --with-vss-sdk=SDK-path enable Windows VSS support in QEMU Guest Agent
1309 --with-win-sdk=SDK-path path to Windows Platform SDK (to build VSS .tlb)
1311 Optional features, enabled with --enable-FEATURE and
1312 disabled with --disable-FEATURE, default is enabled if available:
1314 system all system emulation targets
1315 user supported user emulation targets
1316 linux-user all linux usermode emulation targets
1317 bsd-user all BSD usermode emulation targets
1318 guest-base GUEST_BASE support for usermode emulation targets
1319 docs build documentation
1320 guest-agent build the QEMU Guest Agent
1321 guest-agent-msi build guest agent Windows MSI installation package
1322 pie Position Independent Executables
1323 modules modules support
1324 debug-tcg TCG debugging (default is disabled)
1325 debug-info debugging information
1326 sparse sparse checker
1328 gnutls GNUTLS cryptography support
1330 --with-sdlabi select preferred SDL ABI 1.2 or 2.0
1332 --with-gtkabi select preferred GTK ABI 2.0 or 3.0
1333 vte vte support for the gtk UI
1336 vnc-tls TLS encryption for VNC server
1337 vnc-sasl SASL encryption for VNC server
1338 vnc-jpeg JPEG lossy compression for VNC server
1339 vnc-png PNG compression for VNC server
1340 vnc-ws Websockets support for VNC server
1341 cocoa Cocoa UI (Mac OS X only)
1343 xen xen backend driver support
1345 brlapi BrlAPI (Braile)
1346 curl curl connectivity
1348 bluez bluez stack connectivity
1349 kvm KVM acceleration support
1350 rdma RDMA-based migration support
1352 vde support for vde network
1353 netmap support for netmap network
1354 linux-aio Linux AIO support
1355 cap-ng libcap-ng support
1356 attr attr and xattr support
1357 vhost-net vhost-net acceleration support
1359 rbd rados block device (rbd)
1360 libiscsi iscsi support
1362 smartcard-nss smartcard nss support
1363 libusb libusb (for usb passthrough)
1364 usb-redir usb network redirection support
1365 lzo support of lzo compression library
1366 snappy support of snappy compression library
1367 bzip2 support of bzip2 compression library
1368 (for reading bzip2-compressed dmg images)
1369 seccomp seccomp support
1370 coroutine-pool coroutine freelist (better performance)
1371 glusterfs GlusterFS backend
1372 archipelago Archipelago backend
1374 libssh2 ssh block device support
1375 vhdx support for the Microsoft VHDX image format
1376 numa libnuma support
1377 tcmalloc tcmalloc support
1379 NOTE: The object files are built at the place where configure is launched
1384 # Now we have handled --enable-tcg-interpreter and know we're not just
1385 # printing the help message, bail out if the host CPU isn't supported.
1386 if test "$ARCH" = "unknown"; then
1387 if test "$tcg_interpreter" = "yes" ; then
1388 echo "Unsupported CPU = $cpu, will use TCG with TCI (experimental)"
1391 error_exit "Unsupported CPU = $cpu, try --enable-tcg-interpreter"
1395 # Consult white-list to determine whether to enable werror
1396 # by default. Only enable by default for git builds
1397 z_version=`cut -f3 -d. $source_path/VERSION`
1399 if test -z "$werror" ; then
1400 if test -d "$source_path/.git" -a \
1401 "$linux" = "yes" ; then
1408 # check that the C compiler works.
1410 if compile_object ; then
1411 : C compiler works ok
1413 error_exit "\"$cc\" either does not exist or does not work"
1416 # Check that the C++ compiler exists and works with the C compiler
1419 int c_function(void);
1420 int main(void) { return c_function(); }
1427 int c_function(void);
1429 int c_function(void) { return 42; }
1434 if do_cxx $QEMU_CXXFLAGS -o $TMPE $TMPCXX $TMPO $LDFLAGS; then
1435 # C++ compiler $cxx works ok with C compiler $cc
1438 echo "C++ compiler $cxx does not work with C compiler $cc"
1439 echo "Disabling C++ specific optional code"
1443 echo "No C++ compiler available; disabling C++ specific optional code"
1447 gcc_flags="-Wold-style-declaration -Wold-style-definition -Wtype-limits"
1448 gcc_flags="-Wformat-security -Wformat-y2k -Winit-self -Wignored-qualifiers $gcc_flags"
1449 gcc_flags="-Wmissing-include-dirs -Wempty-body -Wnested-externs $gcc_flags"
1450 gcc_flags="-Wendif-labels $gcc_flags"
1451 gcc_flags="-Wno-initializer-overrides $gcc_flags"
1452 gcc_flags="-Wno-string-plus-int $gcc_flags"
1453 # Note that we do not add -Werror to gcc_flags here, because that would
1454 # enable it for all configure tests. If a configure test failed due
1455 # to -Werror this would just silently disable some features,
1456 # so it's too error prone.
1458 cc_has_warning_flag() {
1461 # Use the positive sense of the flag when testing for -Wno-wombat
1462 # support (gcc will happily accept the -Wno- form of unknown
1464 optflag="$(echo $1 | sed -e 's/^-Wno-/-W/')"
1465 compile_prog "-Werror $optflag" ""
1468 for flag in $gcc_flags; do
1469 if cc_has_warning_flag $flag ; then
1470 QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1474 if test "$stack_protector" != "no"; then
1475 gcc_flags="-fstack-protector-strong -fstack-protector-all"
1477 for flag in $gcc_flags; do
1478 # We need to check both a compile and a link, since some compiler
1479 # setups fail only on a .c->.o compile and some only at link time
1480 if do_cc $QEMU_CFLAGS -Werror $flag -c -o $TMPO $TMPC &&
1481 compile_prog "-Werror $flag" ""; then
1482 QEMU_CFLAGS="$QEMU_CFLAGS $flag"
1483 LIBTOOLFLAGS="$LIBTOOLFLAGS -Wc,$flag"
1488 if test "$stack_protector" = yes; then
1489 if test $sp_on = 0; then
1490 error_exit "Stack protector not supported"
1495 # Workaround for http://gcc.gnu.org/PR55489. Happens with -fPIE/-fPIC and
1496 # large functions that use global variables. The bug is in all releases of
1497 # GCC, but it became particularly acute in 4.6.x and 4.7.x. It is fixed in
1498 # 4.7.3 and 4.8.0. We should be able to delete this at the end of 2013.
1500 #if __GNUC__ == 4 && (__GNUC_MINOR__ == 6 || (__GNUC_MINOR__ == 7 && __GNUC_PATCHLEVEL__ <= 2))
1501 int main(void) { return 0; }
1503 #error No bug in this compiler.
1506 if compile_prog "-Werror -fno-gcse" "" ; then
1507 TRANSLATE_OPT_CFLAGS=-fno-gcse
1510 if test "$static" = "yes" ; then
1511 if test "$modules" = "yes" ; then
1512 error_exit "static and modules are mutually incompatible"
1514 if test "$pie" = "yes" ; then
1515 error_exit "static and pie are mutually incompatible"
1521 # Unconditional check for compiler __thread support
1523 static __thread int tls_var;
1524 int main(void) { return tls_var; }
1527 if ! compile_prog "-Werror" "" ; then
1528 error_exit "Your compiler does not support the __thread specifier for " \
1529 "Thread-Local Storage (TLS). Please upgrade to a version that does."
1532 if test "$pie" = ""; then
1533 case "$cpu-$targetos" in
1534 i386-Linux|x86_64-Linux|x32-Linux|i386-OpenBSD|x86_64-OpenBSD)
1542 if test "$pie" != "no" ; then
1546 # define THREAD __thread
1551 static THREAD int tls_var;
1553 int main(void) { return tls_var; }
1556 if compile_prog "-fPIE -DPIE" "-pie"; then
1557 QEMU_CFLAGS="-fPIE -DPIE $QEMU_CFLAGS"
1558 LDFLAGS="-pie $LDFLAGS"
1560 if compile_prog "" "-Wl,-z,relro -Wl,-z,now" ; then
1561 LDFLAGS="-Wl,-z,relro -Wl,-z,now $LDFLAGS"
1564 if test "$pie" = "yes"; then
1565 error_exit "PIE not available due to missing toolchain support"
1567 echo "Disabling PIE due to missing toolchain support"
1572 if compile_prog "-Werror -fno-pie" "-nopie"; then
1573 CFLAGS_NOPIE="-fno-pie"
1574 LDFLAGS_NOPIE="-nopie"
1578 # check for broken gcc and libtool in RHEL5
1579 if test -n "$libtool" -a "$pie" != "no" ; then
1582 void *f(unsigned char *buf, int len);
1583 void *g(unsigned char *buf, int len);
1586 f(unsigned char *buf, int len)
1592 g(unsigned char *buf, int len)
1598 if ! libtool_prog; then
1599 echo "Disabling libtool due to broken toolchain support"
1604 ##########################################
1605 # __sync_fetch_and_and requires at least -march=i486. Many toolchains
1606 # use i686 as default anyway, but for those that don't, an explicit
1607 # specification is necessary
1609 if test "$cpu" = "i386"; then
1611 static int sfaa(int *ptr)
1613 return __sync_fetch_and_and(ptr, 0);
1619 val = __sync_val_compare_and_swap(&val, 0, 1);
1624 if ! compile_prog "" "" ; then
1625 QEMU_CFLAGS="-march=i486 $QEMU_CFLAGS"
1629 #########################################
1630 # Solaris specific configure tool chain decisions
1632 if test "$solaris" = "yes" ; then
1633 if has $install; then
1636 error_exit "Solaris install program not found. Use --install=/usr/ucb/install or" \
1637 "install fileutils from www.blastwave.org using pkg-get -i fileutils" \
1638 "to get ginstall which is used by default (which lives in /opt/csw/bin)"
1640 if test "`path_of $install`" = "/usr/sbin/install" ; then
1641 error_exit "Solaris /usr/sbin/install is not an appropriate install program." \
1642 "try ginstall from the GNU fileutils available from www.blastwave.org" \
1643 "using pkg-get -i fileutils, or use --install=/usr/ucb/install"
1648 if test -f /usr/ccs/bin/ar ; then
1649 error_exit "No path includes ar" \
1650 "Add /usr/ccs/bin to your path and rerun configure"
1652 error_exit "No path includes ar"
1656 if test -z "${target_list+xxx}" ; then
1657 target_list="$default_target_list"
1659 target_list=`echo "$target_list" | sed -e 's/,/ /g'`
1662 # Check that we recognised the target name; this allows a more
1663 # friendly error message than if we let it fall through.
1664 for target in $target_list; do
1665 case " $default_target_list " in
1669 error_exit "Unknown target name '$target'"
1674 # see if system emulation was really requested
1675 case " $target_list " in
1676 *"-softmmu "*) softmmu=yes
1682 feature_not_found() {
1686 error_exit "User requested feature $feature" \
1687 "configure was not able to find it." \
1692 # big/little endian test
1694 short big_endian[] = { 0x4269, 0x4765, 0x4e64, 0x4961, 0x4e00, 0, };
1695 short little_endian[] = { 0x694c, 0x7454, 0x654c, 0x6e45, 0x6944, 0x6e41, 0, };
1696 extern int foo(short *, short *);
1697 int main(int argc, char *argv[]) {
1698 return foo(big_endian, little_endian);
1702 if compile_object ; then
1703 if grep -q BiGeNdIaN $TMPO ; then
1705 elif grep -q LiTtLeEnDiAn $TMPO ; then
1708 echo big/little test failed
1711 echo big/little test failed
1714 ##########################################
1718 #include <sys/socket.h>
1719 #include <linux/ip.h>
1720 int main(void) { return sizeof(struct mmsghdr); }
1722 if compile_prog "" "" ; then
1728 ##########################################
1731 if ! has "$pkg_config_exe"; then
1732 error_exit "pkg-config binary '$pkg_config_exe' not found"
1735 ##########################################
1738 if test "$linux_user" = "yes"; then
1741 #include <linux/futex.h>
1743 #if !defined(CLONE_SETTLS) || !defined(FUTEX_WAIT)
1749 if ! compile_object ; then
1750 feature_not_found "nptl" "Install glibc and linux kernel headers."
1754 ##########################################
1757 if test "$zlib" != "no" ; then
1760 int main(void) { zlibVersion(); return 0; }
1762 if compile_prog "" "-lz" ; then
1765 error_exit "zlib check failed" \
1766 "Make sure to have the zlib libs and headers installed."
1771 ##########################################
1774 if test "$lzo" != "no" ; then
1776 #include <lzo/lzo1x.h>
1777 int main(void) { lzo_version(); return 0; }
1779 if compile_prog "" "-llzo2" ; then
1780 libs_softmmu="$libs_softmmu -llzo2"
1783 if test "$lzo" = "yes"; then
1784 feature_not_found "liblzo2" "Install liblzo2 devel"
1790 ##########################################
1793 if test "$snappy" != "no" ; then
1795 #include <snappy-c.h>
1796 int main(void) { snappy_max_compressed_length(4096); return 0; }
1798 if compile_prog "" "-lsnappy" ; then
1799 libs_softmmu="$libs_softmmu -lsnappy"
1802 if test "$snappy" = "yes"; then
1803 feature_not_found "libsnappy" "Install libsnappy devel"
1809 ##########################################
1812 if test "$bzip2" != "no" ; then
1815 int main(void) { BZ2_bzlibVersion(); return 0; }
1817 if compile_prog "" "-lbz2" ; then
1820 if test "$bzip2" = "yes"; then
1821 feature_not_found "libbzip2" "Install libbzip2 devel"
1827 ##########################################
1830 if test "$seccomp" != "no" ; then
1831 if test "$cpu" = "i386" || test "$cpu" = "x86_64" &&
1832 $pkg_config --atleast-version=2.1.1 libseccomp; then
1833 libs_softmmu="$libs_softmmu `$pkg_config --libs libseccomp`"
1834 QEMU_CFLAGS="$QEMU_CFLAGS `$pkg_config --cflags libseccomp`"
1837 if test "$seccomp" = "yes"; then
1838 feature_not_found "libseccomp" "Install libseccomp devel >= 2.1.1"
1843 ##########################################
1846 if test "$xen" != "no" ; then
1847 xen_libs="-lxenstore -lxenctrl -lxenguest"
1849 # First we test whether Xen headers and libraries are available.
1850 # If no, we are done and there is no Xen support.
1851 # If yes, more tests are run to detect the Xen version.
1855 #include <xenctrl.h>
1860 if ! compile_prog "" "$xen_libs" ; then
1862 if test "$xen" = "yes" ; then
1863 feature_not_found "xen" "Install xen devel"
1869 cat > $TMPC <<EOF &&
1870 #include <xenctrl.h>
1871 #include <xenstore.h>
1873 #include <xen/hvm/hvm_info_table.h>
1874 #if !defined(HVM_MAX_VCPUS)
1875 # error HVM_MAX_VCPUS not defined
1880 xc = xc_interface_open(0, 0, 0);
1881 xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1882 xc_gnttab_open(NULL, 0);
1883 xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1884 xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1885 xc_hvm_create_ioreq_server(xc, 0, 0, NULL);
1889 compile_prog "" "$xen_libs"
1891 xen_ctrl_version=450
1895 cat > $TMPC <<EOF &&
1896 #include <xenctrl.h>
1897 #include <xenstore.h>
1899 #include <xen/hvm/hvm_info_table.h>
1900 #if !defined(HVM_MAX_VCPUS)
1901 # error HVM_MAX_VCPUS not defined
1906 xc = xc_interface_open(0, 0, 0);
1907 xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1908 xc_gnttab_open(NULL, 0);
1909 xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1910 xc_hvm_inject_msi(xc, 0, 0xf0000000, 0x00000000);
1914 compile_prog "" "$xen_libs"
1916 xen_ctrl_version=420
1920 cat > $TMPC <<EOF &&
1921 #include <xenctrl.h>
1924 #include <xen/hvm/hvm_info_table.h>
1925 #if !defined(HVM_MAX_VCPUS)
1926 # error HVM_MAX_VCPUS not defined
1930 xc_interface_open(0, 0, 0);
1931 xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1932 xc_gnttab_open(NULL, 0);
1933 xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0);
1937 compile_prog "" "$xen_libs"
1939 xen_ctrl_version=410
1944 cat > $TMPC <<EOF &&
1945 #include <xenctrl.h>
1948 #include <xen/hvm/hvm_info_table.h>
1949 #if !defined(HVM_MAX_VCPUS)
1950 # error HVM_MAX_VCPUS not defined
1953 struct xen_add_to_physmap xatp = {
1954 .domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0,
1957 xc_interface_open();
1959 xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1960 xc_memory_op(0, XENMEM_add_to_physmap, &xatp);
1964 compile_prog "" "$xen_libs"
1966 xen_ctrl_version=400
1971 cat > $TMPC <<EOF &&
1972 #include <xenctrl.h>
1975 struct xen_add_to_physmap xatp = {
1976 .domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0,
1979 xc_interface_open();
1981 xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
1982 xc_memory_op(0, XENMEM_add_to_physmap, &xatp);
1986 compile_prog "" "$xen_libs"
1988 xen_ctrl_version=340
1993 cat > $TMPC <<EOF &&
1994 #include <xenctrl.h>
1998 xc_interface_open();
2000 xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0);
2004 compile_prog "" "$xen_libs"
2006 xen_ctrl_version=330
2009 # Xen version unsupported
2011 if test "$xen" = "yes" ; then
2012 feature_not_found "xen (unsupported version)" "Install supported xen (e.g. 4.0, 3.4, 3.3)"
2017 if test "$xen" = yes; then
2018 libs_softmmu="$xen_libs $libs_softmmu"
2022 if test "$xen_pci_passthrough" != "no"; then
2023 if test "$xen" = "yes" && test "$linux" = "yes" &&
2024 test "$xen_ctrl_version" -ge 340; then
2025 xen_pci_passthrough=yes
2027 if test "$xen_pci_passthrough" = "yes"; then
2028 if test "$xen_ctrl_version" -lt 340; then
2029 error_exit "User requested feature Xen PCI Passthrough" \
2030 "This feature does not work with Xen 3.3"
2032 error_exit "User requested feature Xen PCI Passthrough" \
2033 " but this feature requires /sys from Linux"
2035 xen_pci_passthrough=no
2039 ##########################################
2042 if ! has $libtool; then
2046 # MacOSX ships with a libtool which isn't the GNU one; weed this
2047 # out by checking whether libtool supports the --version switch
2048 if test -n "$libtool"; then
2049 if ! "$libtool" --version >/dev/null 2>&1; then
2054 ##########################################
2056 if test "$sparse" != "no" ; then
2060 if test "$sparse" = "yes" ; then
2061 feature_not_found "sparse" "Install sparse binary"
2067 ##########################################
2071 if $pkg_config --exists "x11"; then
2072 x11_cflags=`$pkg_config --cflags x11`
2073 x11_libs=`$pkg_config --libs x11`
2076 ##########################################
2079 if test "$gtkabi" = ""; then
2080 # The GTK ABI was not specified explicitly, so try whether 2.0 is available.
2081 # Use 3.0 as a fallback if that is available.
2082 if $pkg_config --exists "gtk+-2.0 >= 2.18.0"; then
2084 elif $pkg_config --exists "gtk+-3.0 >= 3.0.0"; then
2091 if test "$gtk" != "no"; then
2092 gtkpackage="gtk+-$gtkabi"
2093 gtkx11package="gtk+-x11-$gtkabi"
2094 if test "$gtkabi" = "3.0" ; then
2099 if $pkg_config --exists "$gtkpackage >= $gtkversion"; then
2100 gtk_cflags=`$pkg_config --cflags $gtkpackage`
2101 gtk_libs=`$pkg_config --libs $gtkpackage`
2102 if $pkg_config --exists "$gtkx11package >= $gtkversion"; then
2103 gtk_cflags="$gtk_cflags $x11_cflags"
2104 gtk_libs="$gtk_libs $x11_libs"
2106 libs_softmmu="$gtk_libs $libs_softmmu"
2108 elif test "$gtk" = "yes"; then
2109 feature_not_found "gtk" "Install gtk2 or gtk3 devel"
2116 ##########################################
2121 if test "$gnutls" != "no"; then
2122 if $pkg_config --exists "gnutls"; then
2123 gnutls_cflags=`$pkg_config --cflags gnutls`
2124 gnutls_libs=`$pkg_config --libs gnutls`
2125 libs_softmmu="$gnutls_libs $libs_softmmu"
2126 libs_tools="$gnutls_libs $libs_tools"
2127 QEMU_CFLAGS="$QEMU_CFLAGS $gnutls_cflags"
2130 # gnutls_hash_init requires >= 2.9.10
2131 if $pkg_config --exists "gnutls >= 2.9.10"; then
2137 if $pkg_config --exists 'gnutls >= 3.0'; then
2140 elif $pkg_config --exists 'gnutls >= 2.12'; then
2141 case `$pkg_config --libs --static gnutls` in
2159 elif test "$gnutls" = "yes"; then
2160 feature_not_found "gnutls" "Install gnutls devel"
2169 if test "$gnutls_gcrypt" != "no"; then
2170 if has "libgcrypt-config"; then
2171 gcrypt_cflags=`libgcrypt-config --cflags`
2172 gcrypt_libs=`libgcrypt-config --libs`
2173 libs_softmmu="$gcrypt_libs $libs_softmmu"
2174 libs_tools="$gcrypt_libs $libs_tools"
2175 QEMU_CFLAGS="$QEMU_CFLAGS $gcrypt_cflags"
2177 feature_not_found "gcrypt" "Install gcrypt devel"
2182 if test "$gnutls_nettle" != "no"; then
2183 if $pkg_config --exists "nettle"; then
2184 nettle_cflags=`$pkg_config --cflags nettle`
2185 nettle_libs=`$pkg_config --libs nettle`
2186 nettle_version=`$pkg_config --modversion nettle`
2187 libs_softmmu="$nettle_libs $libs_softmmu"
2188 libs_tools="$nettle_libs $libs_tools"
2189 QEMU_CFLAGS="$QEMU_CFLAGS $nettle_cflags"
2191 feature_not_found "nettle" "Install nettle devel"
2196 ##########################################
2199 if test "$vte" != "no"; then
2200 if test "$gtkabi" = "3.0"; then
2201 vtepackage="vte-2.90"
2207 if $pkg_config --exists "$vtepackage >= $vteversion"; then
2208 vte_cflags=`$pkg_config --cflags $vtepackage`
2209 vte_libs=`$pkg_config --libs $vtepackage`
2210 libs_softmmu="$vte_libs $libs_softmmu"
2212 elif test "$vte" = "yes"; then
2213 if test "$gtkabi" = "3.0"; then
2214 feature_not_found "vte" "Install libvte-2.90 devel"
2216 feature_not_found "vte" "Install libvte devel"
2223 ##########################################
2226 # Look for sdl configuration program (pkg-config or sdl-config). Try
2227 # sdl-config even without cross prefix, and favour pkg-config over sdl-config.
2229 if test $sdlabi = "2.0"; then
2230 sdl_config=$sdl2_config
2232 sdlconfigname=sdl2_config
2235 sdlconfigname=sdl_config
2238 if test "`basename $sdl_config`" != $sdlconfigname && ! has ${sdl_config}; then
2239 sdl_config=$sdlconfigname
2242 if $pkg_config $sdlname --exists; then
2243 sdlconfig="$pkg_config $sdlname"
2244 _sdlversion=`$sdlconfig --modversion 2>/dev/null | sed 's/[^0-9]//g'`
2245 elif has ${sdl_config}; then
2246 sdlconfig="$sdl_config"
2247 _sdlversion=`$sdlconfig --version | sed 's/[^0-9]//g'`
2249 if test "$sdl" = "yes" ; then
2250 feature_not_found "sdl" "Install SDL devel"
2254 if test -n "$cross_prefix" && test "$(basename "$sdlconfig")" = sdl-config; then
2255 echo warning: using "\"$sdlconfig\"" to detect cross-compiled sdl >&2
2259 if test "$sdl" != "no" ; then
2262 #undef main /* We don't want SDL to override our main() */
2263 int main( void ) { return SDL_Init (SDL_INIT_VIDEO); }
2265 sdl_cflags=`$sdlconfig --cflags 2> /dev/null`
2266 if test "$static" = "yes" ; then
2267 sdl_libs=`$sdlconfig --static-libs 2>/dev/null`
2269 sdl_libs=`$sdlconfig --libs 2> /dev/null`
2271 if compile_prog "$sdl_cflags" "$sdl_libs" ; then
2272 if test "$_sdlversion" -lt 121 ; then
2275 if test "$cocoa" = "no" ; then
2280 # static link with sdl ? (note: sdl.pc's --static --libs is broken)
2281 if test "$sdl" = "yes" -a "$static" = "yes" ; then
2282 if test $? = 0 && echo $sdl_libs | grep -- -laa > /dev/null; then
2283 sdl_libs="$sdl_libs `aalib-config --static-libs 2>/dev/null`"
2284 sdl_cflags="$sdl_cflags `aalib-config --cflags 2>/dev/null`"
2286 if compile_prog "$sdl_cflags" "$sdl_libs" ; then
2292 else # sdl not found
2293 if test "$sdl" = "yes" ; then
2294 feature_not_found "sdl" "Install SDL devel"
2297 fi # sdl compile test
2300 if test "$sdl" = "yes" ; then
2303 #if defined(SDL_VIDEO_DRIVER_X11)
2304 #include <X11/XKBlib.h>
2306 #error No x11 support
2308 int main(void) { return 0; }
2310 if compile_prog "$sdl_cflags $x11_cflags" "$sdl_libs $x11_libs" ; then
2311 sdl_cflags="$sdl_cflags $x11_cflags"
2312 sdl_libs="$sdl_libs $x11_libs"
2314 libs_softmmu="$sdl_libs $libs_softmmu"
2317 ##########################################
2318 # RDMA needs OpenFabrics libraries
2319 if test "$rdma" != "no" ; then
2321 #include <rdma/rdma_cma.h>
2322 int main(void) { return 0; }
2324 rdma_libs="-lrdmacm -libverbs"
2325 if compile_prog "" "$rdma_libs" ; then
2327 libs_softmmu="$libs_softmmu $rdma_libs"
2329 if test "$rdma" = "yes" ; then
2331 " OpenFabrics librdmacm/libibverbs not present." \
2333 " (1) Fast: Install infiniband packages from your distro." \
2334 " (2) Cleanest: Install libraries from www.openfabrics.org" \
2335 " (3) Also: Install softiwarp if you don't have RDMA hardware"
2341 ##########################################
2342 # VNC TLS/WS detection
2343 if test "$vnc" = "yes" -a "$vnc_tls" != "no" ; then
2345 #include <gnutls/gnutls.h>
2346 int main(void) { gnutls_session_t s; gnutls_init(&s, GNUTLS_SERVER); return 0; }
2348 vnc_tls_cflags=`$pkg_config --cflags gnutls 2> /dev/null`
2349 vnc_tls_libs=`$pkg_config --libs gnutls 2> /dev/null`
2350 if compile_prog "$vnc_tls_cflags" "$vnc_tls_libs" ; then
2351 if test "$vnc_tls" != "no" ; then
2354 libs_softmmu="$vnc_tls_libs $libs_softmmu"
2355 QEMU_CFLAGS="$QEMU_CFLAGS $vnc_tls_cflags"
2357 if test "$vnc_tls" = "yes" ; then
2358 feature_not_found "vnc-tls" "Install gnutls devel"
2364 ##########################################
2365 # VNC SASL detection
2366 if test "$vnc" = "yes" -a "$vnc_sasl" != "no" ; then
2368 #include <sasl/sasl.h>
2370 int main(void) { sasl_server_init(NULL, "qemu"); return 0; }
2372 # Assuming Cyrus-SASL installed in /usr prefix
2374 vnc_sasl_libs="-lsasl2"
2375 if compile_prog "$vnc_sasl_cflags" "$vnc_sasl_libs" ; then
2377 libs_softmmu="$vnc_sasl_libs $libs_softmmu"
2378 QEMU_CFLAGS="$QEMU_CFLAGS $vnc_sasl_cflags"
2380 if test "$vnc_sasl" = "yes" ; then
2381 feature_not_found "vnc-sasl" "Install Cyrus SASL devel"
2387 ##########################################
2388 # VNC JPEG detection
2389 if test "$vnc" = "yes" -a "$vnc_jpeg" != "no" ; then
2392 #include <jpeglib.h>
2393 int main(void) { struct jpeg_compress_struct s; jpeg_create_compress(&s); return 0; }
2396 vnc_jpeg_libs="-ljpeg"
2397 if compile_prog "$vnc_jpeg_cflags" "$vnc_jpeg_libs" ; then
2399 libs_softmmu="$vnc_jpeg_libs $libs_softmmu"
2400 QEMU_CFLAGS="$QEMU_CFLAGS $vnc_jpeg_cflags"
2402 if test "$vnc_jpeg" = "yes" ; then
2403 feature_not_found "vnc-jpeg" "Install libjpeg-turbo devel"
2409 ##########################################
2411 if test "$vnc" = "yes" -a "$vnc_png" != "no" ; then
2413 //#include <stdio.h>
2417 png_structp png_ptr;
2418 png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
2419 return png_ptr != 0;
2422 if $pkg_config libpng --exists; then
2423 vnc_png_cflags=`$pkg_config libpng --cflags`
2424 vnc_png_libs=`$pkg_config libpng --libs`
2427 vnc_png_libs="-lpng"
2429 if compile_prog "$vnc_png_cflags" "$vnc_png_libs" ; then
2431 libs_softmmu="$vnc_png_libs $libs_softmmu"
2432 QEMU_CFLAGS="$QEMU_CFLAGS $vnc_png_cflags"
2434 if test "$vnc_png" = "yes" ; then
2435 feature_not_found "vnc-png" "Install libpng devel"
2441 ##########################################
2442 # fnmatch() probe, used for ACL routines
2445 #include <fnmatch.h>
2448 fnmatch("foo", "foo", 0);
2452 if compile_prog "" "" ; then
2456 ##########################################
2457 # uuid_generate() probe, used for vdi block driver
2458 # Note that on some systems (notably MacOSX) no extra library
2459 # need be linked to get the uuid functions.
2460 if test "$uuid" != "no" ; then
2463 #include <uuid/uuid.h>
2467 uuid_generate(my_uuid);
2471 if compile_prog "" "" ; then
2473 elif compile_prog "" "$uuid_libs" ; then
2475 libs_softmmu="$uuid_libs $libs_softmmu"
2476 libs_tools="$uuid_libs $libs_tools"
2478 if test "$uuid" = "yes" ; then
2479 feature_not_found "uuid" "Install libuuid devel"
2485 if test "$vhdx" = "yes" ; then
2486 if test "$uuid" = "no" ; then
2487 error_exit "uuid required for VHDX support"
2489 elif test "$vhdx" != "no" ; then
2490 if test "$uuid" = "yes" ; then
2497 ##########################################
2498 # xfsctl() probe, used for raw-posix
2499 if test "$xfs" != "no" ; then
2501 #include <stddef.h> /* NULL */
2502 #include <xfs/xfs.h>
2505 xfsctl(NULL, 0, 0, NULL);
2509 if compile_prog "" "" ; then
2512 if test "$xfs" = "yes" ; then
2513 feature_not_found "xfs" "Instal xfsprogs/xfslibs devel"
2519 ##########################################
2520 # vde libraries probe
2521 if test "$vde" != "no" ; then
2522 vde_libs="-lvdeplug"
2524 #include <libvdeplug.h>
2527 struct vde_open_args a = {0, 0, 0};
2533 if compile_prog "" "$vde_libs" ; then
2535 libs_softmmu="$vde_libs $libs_softmmu"
2536 libs_tools="$vde_libs $libs_tools"
2538 if test "$vde" = "yes" ; then
2539 feature_not_found "vde" "Install vde (Virtual Distributed Ethernet) devel"
2545 ##########################################
2546 # netmap support probe
2547 # Apart from looking for netmap headers, we make sure that the host API version
2548 # supports the netmap backend (>=11). The upper bound (15) is meant to simulate
2549 # a minor/major version number. Minor new features will be marked with values up
2550 # to 15, and if something happens that requires a change to the backend we will
2551 # move above 15, submit the backend fixes and modify this two bounds.
2552 if test "$netmap" != "no" ; then
2554 #include <inttypes.h>
2556 #include <net/netmap.h>
2557 #include <net/netmap_user.h>
2558 #if (NETMAP_API < 11) || (NETMAP_API > 15)
2561 int main(void) { return 0; }
2563 if compile_prog "" "" ; then
2566 if test "$netmap" = "yes" ; then
2567 feature_not_found "netmap"
2573 ##########################################
2574 # libcap-ng library probe
2575 if test "$cap_ng" != "no" ; then
2581 capng_capability_to_name(CAPNG_EFFECTIVE);
2585 if compile_prog "" "$cap_libs" ; then
2587 libs_tools="$cap_libs $libs_tools"
2589 if test "$cap_ng" = "yes" ; then
2590 feature_not_found "cap_ng" "Install libcap-ng devel"
2596 ##########################################
2597 # Sound support libraries probe
2608 int main(void) { $exp }
2610 if compile_prog "$cfl" "$lib" ; then
2613 error_exit "$drv check failed" \
2614 "Make sure to have the $drv libs and headers installed."
2618 audio_drv_list=`echo "$audio_drv_list" | sed -e 's/,/ /g'`
2619 for drv in $audio_drv_list; do
2622 audio_drv_probe $drv alsa/asoundlib.h -lasound \
2623 "return snd_pcm_close((snd_pcm_t *)0);"
2624 libs_softmmu="-lasound $libs_softmmu"
2628 audio_drv_probe $drv pulse/mainloop.h "-lpulse" \
2629 "pa_mainloop *m = 0; pa_mainloop_free (m); return 0;"
2630 libs_softmmu="-lpulse $libs_softmmu"
2635 libs_softmmu="-framework CoreAudio $libs_softmmu"
2639 libs_softmmu="-lole32 -ldxguid $libs_softmmu"
2644 libs_softmmu="$oss_lib $libs_softmmu"
2648 # XXX: Probes for CoreAudio, DirectSound, SDL(?)
2652 echo "$audio_possible_drivers" | grep -q "\<$drv\>" || {
2653 error_exit "Unknown driver '$drv' selected" \
2654 "Possible drivers are: $audio_possible_drivers"
2660 ##########################################
2663 if test "$brlapi" != "no" ; then
2664 brlapi_libs="-lbrlapi"
2668 int main( void ) { return brlapi__openConnection (NULL, NULL, NULL); }
2670 if compile_prog "" "$brlapi_libs" ; then
2672 libs_softmmu="$brlapi_libs $libs_softmmu"
2674 if test "$brlapi" = "yes" ; then
2675 feature_not_found "brlapi" "Install brlapi devel"
2681 ##########################################
2683 if test "$curses" != "no" ; then
2684 if test "$mingw32" = "yes" ; then
2685 curses_list="-lpdcurses"
2687 curses_list="$($pkg_config --libs ncurses 2>/dev/null):-lncurses:-lcurses"
2693 const char *s = curses_version();
2699 for curses_lib in $curses_list; do
2701 if compile_prog "" "$curses_lib" ; then
2703 libs_softmmu="$curses_lib $libs_softmmu"
2708 if test "$curses_found" = "yes" ; then
2711 if test "$curses" = "yes" ; then
2712 feature_not_found "curses" "Install ncurses devel"
2718 ##########################################
2720 if test "$curl" != "no" ; then
2721 if $pkg_config libcurl --exists; then
2722 curlconfig="$pkg_config libcurl"
2724 curlconfig=curl-config
2727 #include <curl/curl.h>
2728 int main(void) { curl_easy_init(); curl_multi_setopt(0, 0, 0); return 0; }
2730 curl_cflags=`$curlconfig --cflags 2>/dev/null`
2731 curl_libs=`$curlconfig --libs 2>/dev/null`
2732 if compile_prog "$curl_cflags" "$curl_libs" ; then
2735 if test "$curl" = "yes" ; then
2736 feature_not_found "curl" "Install libcurl devel"
2742 ##########################################
2743 # bluez support probe
2744 if test "$bluez" != "no" ; then
2746 #include <bluetooth/bluetooth.h>
2747 int main(void) { return bt_error(0); }
2749 bluez_cflags=`$pkg_config --cflags bluez 2> /dev/null`
2750 bluez_libs=`$pkg_config --libs bluez 2> /dev/null`
2751 if compile_prog "$bluez_cflags" "$bluez_libs" ; then
2753 libs_softmmu="$bluez_libs $libs_softmmu"
2755 if test "$bluez" = "yes" ; then
2756 feature_not_found "bluez" "Install bluez-libs/libbluetooth devel"
2762 ##########################################
2763 # glib support probe
2766 glib_modules=gthread-2.0
2767 if test "$modules" = yes; then
2768 glib_modules="$glib_modules gmodule-2.0"
2771 for i in $glib_modules; do
2772 if $pkg_config --atleast-version=$glib_req_ver $i; then
2773 glib_cflags=`$pkg_config --cflags $i`
2774 glib_libs=`$pkg_config --libs $i`
2775 CFLAGS="$glib_cflags $CFLAGS"
2776 LIBS="$glib_libs $LIBS"
2777 libs_qga="$glib_libs $libs_qga"
2779 error_exit "glib-$glib_req_ver $i is required to compile QEMU"
2783 # g_test_trap_subprocess added in 2.38. Used by some tests.
2785 if ! $pkg_config --atleast-version=2.38 glib-2.0; then
2789 # Silence clang 3.5.0 warnings about glib attribute __alloc_size__ usage
2792 int main(void) { return 0; }
2794 if ! compile_prog "$glib_cflags -Werror" "$glib_libs" ; then
2795 if cc_has_warning_flag "-Wno-unknown-attributes"; then
2796 glib_cflags="-Wno-unknown-attributes $glib_cflags"
2797 CFLAGS="-Wno-unknown-attributes $CFLAGS"
2801 ##########################################
2802 # SHA command probe for modules
2803 if test "$modules" = yes; then
2804 shacmd_probe="sha1sum sha1 shasum"
2805 for c in $shacmd_probe; do
2811 if test "$shacmd" = ""; then
2812 error_exit "one of the checksum commands is required to enable modules: $shacmd_probe"
2816 ##########################################
2817 # pixman support probe
2819 if test "$pixman" = ""; then
2820 if test "$want_tools" = "no" -a "$softmmu" = "no"; then
2822 elif $pkg_config --atleast-version=0.21.8 pixman-1 > /dev/null 2>&1; then
2828 if test "$pixman" = "none"; then
2829 if test "$want_tools" != "no" -o "$softmmu" != "no"; then
2830 error_exit "pixman disabled but system emulation or tools build" \
2831 "enabled. You can turn off pixman only if you also" \
2832 "disable all system emulation targets and the tools" \
2833 "build with '--disable-tools --disable-system'."
2837 elif test "$pixman" = "system"; then
2838 # pixman version has been checked above
2839 pixman_cflags=`$pkg_config --cflags pixman-1`
2840 pixman_libs=`$pkg_config --libs pixman-1`
2842 if test ! -d ${source_path}/pixman/pixman; then
2843 error_exit "pixman >= 0.21.8 not present. Your options:" \
2844 " (1) Preferred: Install the pixman devel package (any recent" \
2845 " distro should have packages as Xorg needs pixman too)." \
2846 " (2) Fetch the pixman submodule, using:" \
2847 " git submodule update --init pixman"
2849 mkdir -p pixman/pixman
2850 pixman_cflags="-I\$(SRC_PATH)/pixman/pixman -I\$(BUILD_DIR)/pixman/pixman"
2851 pixman_libs="-L\$(BUILD_DIR)/pixman/pixman/.libs -lpixman-1"
2854 ##########################################
2857 if test "$cap" != "no" ; then
2860 #include <sys/capability.h>
2861 int main(void) { cap_t caps; caps = cap_init(); return caps != NULL; }
2863 if compile_prog "" "-lcap" ; then
2870 ##########################################
2872 PTHREADLIBS_LIST="-pthread -lpthread -lpthreadGC2"
2876 #include <pthread.h>
2877 static void *f(void *p) { return NULL; }
2880 pthread_create(&thread, 0, f, 0);
2884 if compile_prog "" "" ; then
2887 for pthread_lib in $PTHREADLIBS_LIST; do
2888 if compile_prog "" "$pthread_lib" ; then
2891 for lib_entry in $LIBS; do
2892 if test "$lib_entry" = "$pthread_lib"; then
2897 if test "$found" = "no"; then
2898 LIBS="$pthread_lib $LIBS"
2905 if test "$mingw32" != yes -a "$pthread" = no; then
2906 error_exit "pthread check failed" \
2907 "Make sure to have the pthread libs and headers installed."
2910 # check for pthread_setname_np
2911 pthread_setname_np=no
2913 #include <pthread.h>
2915 static void *f(void *p) { return NULL; }
2919 pthread_create(&thread, 0, f, 0);
2920 pthread_setname_np(thread, "QEMU");
2924 if compile_prog "" "$pthread_lib" ; then
2925 pthread_setname_np=yes
2928 ##########################################
2930 if test "$rbd" != "no" ; then
2933 #include <rbd/librbd.h>
2936 rados_create(&cluster, NULL);
2940 rbd_libs="-lrbd -lrados"
2941 if compile_prog "" "$rbd_libs" ; then
2944 if test "$rbd" = "yes" ; then
2945 feature_not_found "rados block device" "Install librbd/ceph devel"
2951 ##########################################
2953 min_libssh2_version=1.2.8
2954 if test "$libssh2" != "no" ; then
2955 if $pkg_config --atleast-version=$min_libssh2_version libssh2; then
2956 libssh2_cflags=`$pkg_config libssh2 --cflags`
2957 libssh2_libs=`$pkg_config libssh2 --libs`
2960 if test "$libssh2" = "yes" ; then
2961 error_exit "libssh2 >= $min_libssh2_version required for --enable-libssh2"
2967 ##########################################
2968 # libssh2_sftp_fsync probe
2970 if test "$libssh2" = "yes"; then
2973 #include <libssh2.h>
2974 #include <libssh2_sftp.h>
2976 LIBSSH2_SESSION *session;
2978 LIBSSH2_SFTP_HANDLE *sftp_handle;
2979 session = libssh2_session_init ();
2980 sftp = libssh2_sftp_init (session);
2981 sftp_handle = libssh2_sftp_open (sftp, "/", 0, 0);
2982 libssh2_sftp_fsync (sftp_handle);
2986 # libssh2_cflags/libssh2_libs defined in previous test.
2987 if compile_prog "$libssh2_cflags" "$libssh2_libs" ; then
2988 QEMU_CFLAGS="-DHAS_LIBSSH2_SFTP_FSYNC $QEMU_CFLAGS"
2992 ##########################################
2995 if test "$linux_aio" != "no" ; then
2998 #include <sys/eventfd.h>
3000 int main(void) { io_setup(0, NULL); io_set_eventfd(NULL, 0); eventfd(0, 0); return 0; }
3002 if compile_prog "" "-laio" ; then
3005 if test "$linux_aio" = "yes" ; then
3006 feature_not_found "linux AIO" "Install libaio devel"
3012 ##########################################
3013 # TPM passthrough is only on x86 Linux
3015 if test "$targetos" = Linux && test "$cpu" = i386 -o "$cpu" = x86_64; then
3016 tpm_passthrough=$tpm
3021 ##########################################
3024 if test "$attr" != "no" ; then
3027 #include <sys/types.h>
3028 #ifdef CONFIG_LIBATTR
3029 #include <attr/xattr.h>
3031 #include <sys/xattr.h>
3033 int main(void) { getxattr(NULL, NULL, NULL, 0); setxattr(NULL, NULL, NULL, 0, 0); return 0; }
3035 if compile_prog "" "" ; then
3037 # Older distros have <attr/xattr.h>, and need -lattr:
3038 elif compile_prog "-DCONFIG_LIBATTR" "-lattr" ; then
3043 if test "$attr" = "yes" ; then
3044 feature_not_found "ATTR" "Install libc6 or libattr devel"
3050 ##########################################
3053 #include <sys/types.h>
3054 #include <sys/uio.h>
3056 int main(void) { return sizeof(struct iovec); }
3059 if compile_prog "" "" ; then
3063 ##########################################
3066 #include <sys/types.h>
3067 #include <sys/uio.h>
3069 int main(void) { return preadv(0, 0, 0, 0); }
3072 if compile_prog "" "" ; then
3076 ##########################################
3078 # fdt support is mandatory for at least some target architectures,
3079 # so insist on it if we're building those system emulators.
3081 for target in $target_list; do
3083 aarch64*-softmmu|arm*-softmmu|ppc*-softmmu|microblaze*-softmmu)
3089 if test "$fdt_required" = "yes"; then
3090 if test "$fdt" = "no"; then
3091 error_exit "fdt disabled but some requested targets require it." \
3092 "You can turn off fdt only if you also disable all the system emulation" \
3093 "targets which need it (by specifying a cut down --target-list)."
3098 if test "$fdt" != "no" ; then
3100 # explicitly check for libfdt_env.h as it is missing in some stable installs
3101 # and test for required functions to make sure we are on a version >= 1.4.0
3104 #include <libfdt_env.h>
3105 int main(void) { fdt_get_property_by_offset(0, 0, 0); return 0; }
3107 if compile_prog "" "$fdt_libs" ; then
3108 # system DTC is good - use it
3110 elif test -d ${source_path}/dtc/libfdt ; then
3111 # have submodule DTC - use it
3115 if [ "$pwd_is_source_path" != "y" ] ; then
3116 symlink "$source_path/dtc/Makefile" "dtc/Makefile"
3117 symlink "$source_path/dtc/scripts" "dtc/scripts"
3119 fdt_cflags="-I\$(SRC_PATH)/dtc/libfdt"
3120 fdt_libs="-L\$(BUILD_DIR)/dtc/libfdt $fdt_libs"
3121 elif test "$fdt" = "yes" ; then
3122 # have neither and want - prompt for system/submodule install
3123 error_exit "DTC (libfdt) version >= 1.4.0 not present. Your options:" \
3124 " (1) Preferred: Install the DTC (libfdt) devel package" \
3125 " (2) Fetch the DTC submodule, using:" \
3126 " git submodule update --init dtc"
3128 # don't have and don't want
3134 libs_softmmu="$libs_softmmu $fdt_libs"
3136 ##########################################
3137 # opengl probe (for sdl2, milkymist-tmu2)
3139 # GLX probe, used by milkymist-tmu2
3140 # this is temporary, code will be switched to egl mid-term.
3142 #include <X11/Xlib.h>
3145 int main(void) { glBegin(0); glXQueryVersion(0,0,0); return 0; }
3147 if compile_prog "" "-lGL -lX11" ; then
3153 if test "$opengl" != "no" ; then
3154 opengl_pkgs="gl glesv2 epoxy egl"
3155 if $pkg_config $opengl_pkgs x11 && test "$have_glx" = "yes"; then
3156 opengl_cflags="$($pkg_config --cflags $opengl_pkgs) $x11_cflags"
3157 opengl_libs="$($pkg_config --libs $opengl_pkgs) $x11_libs"
3160 if test "$opengl" = "yes" ; then
3161 feature_not_found "opengl" "Please install opengl (mesa) devel pkgs: $opengl_pkgs"
3170 ##########################################
3172 if test "$archipelago" != "no" ; then
3175 #include <xseg/xseg.h>
3176 #include <xseg/protocol.h>
3182 archipelago_libs=-lxseg
3183 if compile_prog "" "$archipelago_libs"; then
3185 libs_tools="$archipelago_libs $libs_tools"
3186 libs_softmmu="$archipelago_libs $libs_softmmu"
3188 echo "WARNING: Please check the licenses of QEMU and libxseg carefully."
3189 echo "GPLv3 versions of libxseg may not be compatible with QEMU's"
3190 echo "license and therefore prevent redistribution."
3192 echo "To disable Archipelago, use --disable-archipelago"
3194 if test "$archipelago" = "yes" ; then
3195 feature_not_found "Archipelago backend support" "Install libxseg devel"
3202 ##########################################
3204 if test "$glusterfs" != "no" ; then
3205 if $pkg_config --atleast-version=3 glusterfs-api; then
3207 glusterfs_cflags=`$pkg_config --cflags glusterfs-api`
3208 glusterfs_libs=`$pkg_config --libs glusterfs-api`
3209 if $pkg_config --atleast-version=5 glusterfs-api; then
3210 glusterfs_discard="yes"
3212 if $pkg_config --atleast-version=6 glusterfs-api; then
3213 glusterfs_zerofill="yes"
3216 if test "$glusterfs" = "yes" ; then
3217 feature_not_found "GlusterFS backend support" \
3218 "Install glusterfs-api devel >= 3"
3224 # Check for inotify functions when we are building linux-user
3225 # emulator. This is done because older glibc versions don't
3226 # have syscall stubs for these implemented. In that case we
3227 # don't provide them even if kernel supports them.
3231 #include <sys/inotify.h>
3236 /* try to start inotify */
3237 return inotify_init();
3240 if compile_prog "" "" ; then
3246 #include <sys/inotify.h>
3251 /* try to start inotify */
3252 return inotify_init1(0);
3255 if compile_prog "" "" ; then
3259 # check if utimensat and futimens are supported
3262 #define _ATFILE_SOURCE
3265 #include <sys/stat.h>
3269 utimensat(AT_FDCWD, "foo", NULL, 0);
3274 if compile_prog "" "" ; then
3278 # check if pipe2 is there
3287 return pipe2(pipefd, O_CLOEXEC);
3290 if compile_prog "" "" ; then
3294 # check if accept4 is there
3297 #include <sys/socket.h>
3302 accept4(0, NULL, NULL, SOCK_CLOEXEC);
3306 if compile_prog "" "" ; then
3310 # check if tee/splice is there. vmsplice was added same time.
3320 len = tee(STDIN_FILENO, STDOUT_FILENO, INT_MAX, SPLICE_F_NONBLOCK);
3321 splice(STDIN_FILENO, NULL, fd, NULL, len, SPLICE_F_MOVE);
3325 if compile_prog "" "" ; then
3329 ##########################################
3332 if test "$numa" != "no" ; then
3335 int main(void) { return numa_available(); }
3338 if compile_prog "" "-lnuma" ; then
3340 libs_softmmu="-lnuma $libs_softmmu"
3342 if test "$numa" = "yes" ; then
3343 feature_not_found "numa" "install numactl devel"
3349 ##########################################
3352 if test "$tcmalloc" = "yes" ; then
3355 int main(void) { malloc(1); return 0; }
3358 if compile_prog "" "-ltcmalloc" ; then
3359 LIBS="-ltcmalloc $LIBS"
3361 feature_not_found "tcmalloc" "install gperftools devel"
3365 ##########################################
3370 #include <sys/syscall.h>
3372 int main(void) { return syscall(SYS_signalfd, -1, NULL, _NSIG / 8); }
3375 if compile_prog "" "" ; then
3379 # check if eventfd is supported
3382 #include <sys/eventfd.h>
3386 return eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
3389 if compile_prog "" "" ; then
3393 # check for fallocate
3400 fallocate(0, 0, 0, 0);
3404 if compile_prog "" "" ; then
3408 # check for fallocate hole punching
3409 fallocate_punch_hole=no
3412 #include <linux/falloc.h>
3416 fallocate(0, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, 0, 0);
3420 if compile_prog "" "" ; then
3421 fallocate_punch_hole=yes
3424 # check that fallocate supports range zeroing inside the file
3425 fallocate_zero_range=no
3428 #include <linux/falloc.h>
3432 fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
3436 if compile_prog "" "" ; then
3437 fallocate_zero_range=yes
3440 # check for posix_fallocate
3447 posix_fallocate(0, 0, 0);
3451 if compile_prog "" "" ; then
3455 # check for sync_file_range
3462 sync_file_range(0, 0, 0, 0);
3466 if compile_prog "" "" ; then
3470 # check for linux/fiemap.h and FS_IOC_FIEMAP
3473 #include <sys/ioctl.h>
3474 #include <linux/fs.h>
3475 #include <linux/fiemap.h>
3479 ioctl(0, FS_IOC_FIEMAP, 0);
3483 if compile_prog "" "" ; then
3498 if compile_prog "" "" ; then
3502 # check for ppoll support
3509 struct pollfd pfd = { .fd = 0, .events = 0, .revents = 0 };
3510 ppoll(&pfd, 1, 0, 0);
3514 if compile_prog "" "" ; then
3518 # check for prctl(PR_SET_TIMERSLACK , ... ) support
3519 prctl_pr_set_timerslack=no
3521 #include <sys/prctl.h>
3525 prctl(PR_SET_TIMERSLACK, 1, 0, 0, 0);
3529 if compile_prog "" "" ; then
3530 prctl_pr_set_timerslack=yes
3533 # check for epoll support
3536 #include <sys/epoll.h>
3544 if compile_prog "" "" ; then
3548 # epoll_create1 and epoll_pwait are later additions
3549 # so we must check separately for their presence
3552 #include <sys/epoll.h>
3556 /* Note that we use epoll_create1 as a value, not as
3557 * a function being called. This is necessary so that on
3558 * old SPARC glibc versions where the function was present in
3559 * the library but not declared in the header file we will
3560 * fail the configure check. (Otherwise we will get a compiler
3561 * warning but not an error, and will proceed to fail the
3562 * qemu compile where we compile with -Werror.)
3564 return (int)(uintptr_t)&epoll_create1;
3567 if compile_prog "" "" ; then
3573 #include <sys/epoll.h>
3577 epoll_pwait(0, 0, 0, 0, 0);
3581 if compile_prog "" "" ; then
3585 # check for sendfile support
3588 #include <sys/sendfile.h>
3592 return sendfile(0, 0, 0, 0);
3595 if compile_prog "" "" ; then
3599 # check for timerfd support (glibc 2.8 and newer)
3602 #include <sys/timerfd.h>
3606 return(timerfd_create(CLOCK_REALTIME, 0));
3609 if compile_prog "" "" ; then
3613 # check for setns and unshare support
3626 if compile_prog "" "" ; then
3630 # Check if tools are available to build documentation.
3631 if test "$docs" != "no" ; then
3632 if has makeinfo && has pod2man; then
3635 if test "$docs" = "yes" ; then
3636 feature_not_found "docs" "Install texinfo and Perl/perl-podlators"
3642 # Search for bswap_32 function
3645 #include <byteswap.h>
3646 int main(void) { return bswap_32(0); }
3648 if compile_prog "" "" ; then
3652 # Search for bswap32 function
3655 #include <sys/endian.h>
3656 #include <sys/types.h>
3657 #include <machine/bswap.h>
3658 int main(void) { return bswap32(0); }
3660 if compile_prog "" "" ; then
3664 ##########################################
3665 # Do we have libiscsi >= 1.9.0
3666 if test "$libiscsi" != "no" ; then
3667 if $pkg_config --atleast-version=1.9.0 libiscsi; then
3669 libiscsi_cflags=$($pkg_config --cflags libiscsi)
3670 libiscsi_libs=$($pkg_config --libs libiscsi)
3672 if test "$libiscsi" = "yes" ; then
3673 feature_not_found "libiscsi" "Install libiscsi >= 1.9.0"
3679 ##########################################
3683 int main(int argc, char **argv) { return isnan(sin((double)argc)); }
3685 if compile_prog "" "" ; then
3687 elif compile_prog "" "-lm" ; then
3689 libs_qga="-lm $libs_qga"
3691 error_exit "libm check failed"
3694 ##########################################
3696 # uClibc provides 2 versions of clock_gettime(), one with realtime
3697 # support and one without. This means that the clock_gettime() don't
3698 # need -lrt. We still need it for timer_create() so we check for this
3699 # function in addition.
3704 timer_create(CLOCK_REALTIME, NULL, NULL);
3705 return clock_gettime(CLOCK_REALTIME, NULL);
3709 if compile_prog "" "" ; then
3711 # we need pthread for static linking. use previous pthread test result
3712 elif compile_prog "" "$pthread_lib -lrt" ; then
3714 libs_qga="$libs_qga -lrt"
3717 if test "$darwin" != "yes" -a "$mingw32" != "yes" -a "$solaris" != yes -a \
3718 "$aix" != "yes" -a "$haiku" != "yes" ; then
3719 libs_softmmu="-lutil $libs_softmmu"
3722 ##########################################
3724 if test "$spice" != "no" ; then
3727 int main(void) { spice_server_new(); return 0; }
3729 spice_cflags=$($pkg_config --cflags spice-protocol spice-server 2>/dev/null)
3730 spice_libs=$($pkg_config --libs spice-protocol spice-server 2>/dev/null)
3731 if $pkg_config --atleast-version=0.12.0 spice-server && \
3732 $pkg_config --atleast-version=0.12.3 spice-protocol && \
3733 compile_prog "$spice_cflags" "$spice_libs" ; then
3735 libs_softmmu="$libs_softmmu $spice_libs"
3736 QEMU_CFLAGS="$QEMU_CFLAGS $spice_cflags"
3737 spice_protocol_version=$($pkg_config --modversion spice-protocol)
3738 spice_server_version=$($pkg_config --modversion spice-server)
3740 if test "$spice" = "yes" ; then
3741 feature_not_found "spice" \
3742 "Install spice-server(>=0.12.0) and spice-protocol(>=0.12.3) devel"
3748 # check for libcacard for smartcard support
3750 # TODO - what's the minimal nss version we support?
3751 if test "$smartcard_nss" != "no"; then
3753 #include <pk11pub.h>
3754 int main(void) { PK11_FreeSlot(0); return 0; }
3756 # FIXME: do not include $glib_* in here
3757 nss_libs="$($pkg_config --libs nss 2>/dev/null) $glib_libs"
3758 nss_cflags="$($pkg_config --cflags nss 2>/dev/null) $glib_cflags"
3759 test_cflags="$nss_cflags"
3760 # The header files in nss < 3.13.3 have a bug which causes them to
3761 # emit a warning. If we're going to compile QEMU with -Werror, then
3762 # test that the headers don't have this bug. Otherwise we would pass
3763 # the configure test but fail to compile QEMU later.
3764 if test "$werror" = "yes"; then
3765 test_cflags="-Werror $test_cflags"
3767 if test -n "$libtool" &&
3768 $pkg_config --atleast-version=3.12.8 nss && \
3769 compile_prog "$test_cflags" "$nss_libs"; then
3772 if test "$smartcard_nss" = "yes"; then
3773 feature_not_found "nss" "Install nss devel >= 3.12.8"
3780 if test "$libusb" != "no" ; then
3781 if $pkg_config --atleast-version=1.0.13 libusb-1.0; then
3783 libusb_cflags=$($pkg_config --cflags libusb-1.0)
3784 libusb_libs=$($pkg_config --libs libusb-1.0)
3785 QEMU_CFLAGS="$QEMU_CFLAGS $libusb_cflags"
3786 libs_softmmu="$libs_softmmu $libusb_libs"
3788 if test "$libusb" = "yes"; then
3789 feature_not_found "libusb" "Install libusb devel >= 1.0.13"
3795 # check for usbredirparser for usb network redirection support
3796 if test "$usb_redir" != "no" ; then
3797 if $pkg_config --atleast-version=0.6 libusbredirparser-0.5; then
3799 usb_redir_cflags=$($pkg_config --cflags libusbredirparser-0.5)
3800 usb_redir_libs=$($pkg_config --libs libusbredirparser-0.5)
3801 QEMU_CFLAGS="$QEMU_CFLAGS $usb_redir_cflags"
3802 libs_softmmu="$libs_softmmu $usb_redir_libs"
3804 if test "$usb_redir" = "yes"; then
3805 feature_not_found "usb-redir" "Install usbredir devel"
3811 ##########################################
3812 # check if we have VSS SDK headers for win
3814 if test "$mingw32" = "yes" -a "$guest_agent" != "no" -a "$vss_win32_sdk" != "no" ; then
3815 case "$vss_win32_sdk" in
3816 "") vss_win32_include="-I$source_path" ;;
3817 *\ *) # The SDK is installed in "Program Files" by default, but we cannot
3818 # handle path with spaces. So we symlink the headers into ".sdk/vss".
3819 vss_win32_include="-I$source_path/.sdk/vss"
3820 symlink "$vss_win32_sdk/inc" "$source_path/.sdk/vss/inc"
3822 *) vss_win32_include="-I$vss_win32_sdk"
3825 #define __MIDL_user_allocate_free_DEFINED__
3826 #include <inc/win2003/vss.h>
3827 int main(void) { return VSS_CTX_BACKUP; }
3829 if compile_prog "$vss_win32_include" "" ; then
3830 guest_agent_with_vss="yes"
3831 QEMU_CFLAGS="$QEMU_CFLAGS $vss_win32_include"
3832 libs_qga="-lole32 -loleaut32 -lshlwapi -luuid -lstdc++ -Wl,--enable-stdcall-fixup $libs_qga"
3834 if test "$vss_win32_sdk" != "" ; then
3835 echo "ERROR: Please download and install Microsoft VSS SDK:"
3836 echo "ERROR: http://www.microsoft.com/en-us/download/details.aspx?id=23490"
3837 echo "ERROR: On POSIX-systems, you can extract the SDK headers by:"
3838 echo "ERROR: scripts/extract-vsssdk-headers setup.exe"
3839 echo "ERROR: The headers are extracted in the directory \`inc'."
3840 feature_not_found "VSS support"
3842 guest_agent_with_vss="no"
3846 ##########################################
3847 # lookup Windows platform SDK (if not specified)
3848 # The SDK is needed only to build .tlb (type library) file of guest agent
3849 # VSS provider from the source. It is usually unnecessary because the
3850 # pre-compiled .tlb file is included.
3852 if test "$mingw32" = "yes" -a "$guest_agent" != "no" -a "$guest_agent_with_vss" = "yes" ; then
3853 if test -z "$win_sdk"; then
3854 programfiles="$PROGRAMFILES"
3855 test -n "$PROGRAMW6432" && programfiles="$PROGRAMW6432"
3856 if test -n "$programfiles"; then
3857 win_sdk=$(ls -d "$programfiles/Microsoft SDKs/Windows/v"* | tail -1) 2>/dev/null
3859 feature_not_found "Windows SDK"
3861 elif test "$win_sdk" = "no"; then
3866 ##########################################
3867 # check if mingw environment provides a recent ntddscsi.h
3868 if test "$mingw32" = "yes" -a "$guest_agent" != "no"; then
3870 #include <windows.h>
3871 #include <ntddscsi.h>
3873 #if !defined(IOCTL_SCSI_GET_ADDRESS)
3874 #error Missing required ioctl definitions
3876 SCSI_ADDRESS addr = { .Lun = 0, .TargetId = 0, .PathId = 0 };
3880 if compile_prog "" "" ; then
3881 guest_agent_ntddscsi=yes
3882 libs_qga="-lsetupapi $libs_qga"
3886 ##########################################
3887 # Guest agent Window MSI package
3889 if test "$guest_agent" != yes; then
3890 if test "$guest_agent_msi" = yes; then
3891 error_exit "MSI guest agent package requires guest agent enabled"
3894 elif test "$mingw32" != "yes"; then
3895 if test "$guest_agent_msi" = "yes"; then
3896 error_exit "MSI guest agent package is available only for MinGW Windows cross-compilation"
3899 elif ! has wixl; then
3900 if test "$guest_agent_msi" = "yes"; then
3901 error_exit "MSI guest agent package requires wixl tool installed ( usually from msitools package )"
3906 if test "$guest_agent_msi" != "no"; then
3907 if test "$guest_agent_with_vss" = "yes"; then
3908 QEMU_GA_MSI_WITH_VSS="-D InstallVss"
3911 if test "$QEMU_GA_MANUFACTURER" = ""; then
3912 QEMU_GA_MANUFACTURER=QEMU
3915 if test "$QEMU_GA_DISTRO" = ""; then
3916 QEMU_GA_DISTRO=Linux
3919 if test "$QEMU_GA_VERSION" = ""; then
3920 QEMU_GA_VERSION=`cat $source_path/VERSION`
3923 QEMU_GA_MSI_MINGW_DLL_PATH="-D Mingw_dlls=`$pkg_config --variable=prefix glib-2.0`/bin"
3927 QEMU_GA_MSI_ARCH="-a x64 -D Arch=64"
3930 QEMU_GA_MSI_ARCH="-D Arch=32"
3933 error_exit "CPU $cpu not supported for building installation package"
3938 ##########################################
3939 # check if we have fdatasync
3945 #if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
3946 return fdatasync(0);
3948 #error Not supported
3952 if compile_prog "" "" ; then
3956 ##########################################
3957 # check if we have madvise
3961 #include <sys/types.h>
3962 #include <sys/mman.h>
3964 int main(void) { return madvise(NULL, 0, MADV_DONTNEED); }
3966 if compile_prog "" "" ; then
3970 ##########################################
3971 # check if we have posix_madvise
3975 #include <sys/mman.h>
3977 int main(void) { return posix_madvise(NULL, 0, POSIX_MADV_DONTNEED); }
3979 if compile_prog "" "" ; then
3983 ##########################################
3984 # check if we have usable SIGEV_THREAD_ID
3991 ev.sigev_notify = SIGEV_THREAD_ID;
3992 ev._sigev_un._tid = 0;
3993 asm volatile("" : : "g"(&ev));
3997 if compile_prog "" "" ; then
4001 ##########################################
4002 # check if trace backend exists
4004 $python "$source_path/scripts/tracetool.py" "--backends=$trace_backends" --check-backends > /dev/null 2> /dev/null
4005 if test "$?" -ne 0 ; then
4006 error_exit "invalid trace backends" \
4007 "Please choose supported trace backends."
4010 ##########################################
4011 # For 'ust' backend, test if ust headers are present
4012 if have_backend "ust"; then
4014 #include <lttng/tracepoint.h>
4015 int main(void) { return 0; }
4017 if compile_prog "" "" ; then
4018 if $pkg_config lttng-ust --exists; then
4019 lttng_ust_libs=`$pkg_config --libs lttng-ust`
4021 lttng_ust_libs="-llttng-ust"
4023 if $pkg_config liburcu-bp --exists; then
4024 urcu_bp_libs=`$pkg_config --libs liburcu-bp`
4026 urcu_bp_libs="-lurcu-bp"
4029 LIBS="$lttng_ust_libs $urcu_bp_libs $LIBS"
4030 libs_qga="$lttng_ust_libs $urcu_bp_libs $libs_qga"
4032 error_exit "Trace backend 'ust' missing lttng-ust header files"
4036 ##########################################
4037 # For 'dtrace' backend, test if 'dtrace' command is present
4038 if have_backend "dtrace"; then
4039 if ! has 'dtrace' ; then
4040 error_exit "dtrace command is not found in PATH $PATH"
4042 trace_backend_stap="no"
4043 if has 'stap' ; then
4044 trace_backend_stap="yes"
4048 ##########################################
4049 # check and set a backend for coroutine
4051 # We prefer ucontext, but it's not always possible. The fallback
4052 # is sigcontext. gthread is not selectable except explicitly, because
4053 # it is not functional enough to run QEMU proper. (It is occasionally
4054 # useful for debugging purposes.) On Windows the only valid backend
4055 # is the Windows-specific one.
4058 if test "$darwin" != "yes"; then
4060 #include <ucontext.h>
4061 #ifdef __stub_makecontext
4062 #error Ignoring glibc stub makecontext which will always fail
4064 int main(void) { makecontext(0, 0, 0); return 0; }
4066 if compile_prog "" "" ; then
4071 if test "$coroutine" = ""; then
4072 if test "$mingw32" = "yes"; then
4074 elif test "$ucontext_works" = "yes"; then
4077 coroutine=sigaltstack
4082 if test "$mingw32" != "yes"; then
4083 error_exit "'windows' coroutine backend only valid for Windows"
4085 # Unfortunately the user visible backend name doesn't match the
4086 # coroutine-*.c filename for this case, so we have to adjust it here.
4090 if test "$ucontext_works" != "yes"; then
4091 feature_not_found "ucontext"
4094 gthread|sigaltstack)
4095 if test "$mingw32" = "yes"; then
4096 error_exit "only the 'windows' coroutine backend is valid for Windows"
4100 error_exit "unknown coroutine backend $coroutine"
4105 if test "$coroutine_pool" = ""; then
4106 if test "$coroutine" = "gthread"; then
4112 if test "$coroutine" = "gthread" -a "$coroutine_pool" = "yes"; then
4113 error_exit "'gthread' coroutine backend does not support pool (use --disable-coroutine-pool)"
4116 ##########################################
4117 # check if we have open_by_handle_at
4119 open_by_handle_at=no
4122 #if !defined(AT_EMPTY_PATH)
4123 # error missing definition
4125 int main(void) { struct file_handle fh; return open_by_handle_at(0, &fh, 0); }
4128 if compile_prog "" "" ; then
4129 open_by_handle_at=yes
4132 ########################################
4133 # check if we have linux/magic.h
4137 #include <linux/magic.h>
4142 if compile_prog "" "" ; then
4146 ########################################
4147 # check whether we can disable warning option with a pragma (this is needed
4148 # to silence warnings in the headers of some versions of external libraries).
4149 # This test has to be compiled with -Werror as otherwise an unknown pragma is
4152 # If we can't selectively disable warning in the code, disable -Werror so that
4153 # the build doesn't fail anyway.
4155 pragma_disable_unused_but_set=no
4157 #pragma GCC diagnostic push
4158 #pragma GCC diagnostic ignored "-Wunused-but-set-variable"
4159 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
4160 #pragma GCC diagnostic pop
4166 if compile_prog "-Werror" "" ; then
4167 pragma_diagnostic_available=yes
4172 ########################################
4173 # check if we have valgrind/valgrind.h
4177 #include <valgrind/valgrind.h>
4182 if compile_prog "" "" ; then
4186 ########################################
4187 # check if environ is declared
4197 if compile_prog "" "" ; then
4201 ########################################
4202 # check if cpuid.h is usable.
4208 unsigned a, b, c, d;
4209 int max = __get_cpuid_max(0, 0);
4212 __cpuid(1, a, b, c, d);
4216 __cpuid_count(7, 0, a, b, c, d);
4222 if compile_prog "" "" ; then
4226 ########################################
4227 # check if __[u]int128_t is usable.
4231 #if defined(__clang_major__) && defined(__clang_minor__)
4232 # if ((__clang_major__ < 3) || (__clang_major__ == 3) && (__clang_minor__ < 2))
4233 # error __int128_t does not work in CLANG before 3.2
4245 if compile_prog "" "" ; then
4249 ########################################
4250 # check if getauxval is available.
4254 #include <sys/auxv.h>
4256 return getauxval(AT_HWCAP) == 0;
4259 if compile_prog "" "" ; then
4263 ########################################
4264 # check if ccache is interfering with
4265 # semantic analysis of macros
4269 static const int Z = 1;
4270 #define fn() ({ Z; })
4271 #define TAUT(X) ((X) == Z)
4272 #define PAREN(X, Y) (X == Y)
4274 int main(int argc, char *argv[])
4280 if (PAREN(x, y)) return 0;
4281 if (TAUT(Z)) return 0;
4286 if ! compile_object "-Werror"; then