5 ## This script is sourced by the main configure script and contains
6 ## utility functions and other common bits that aren't strictly libvpx
9 ## This build system is based in part on the FFmpeg configure script.
14 # Logging / Output Functions
17 echo "Unknown option \"$1\"."
18 echo "See $0 --help for available options."
27 echo "Configuration failed. This could reflect a misconfiguration of your"
28 echo "toolchains, improper options selected, or another problem. If you"
29 echo "don't see any useful error messages above, the next step is to look"
30 echo "at the configure error log file ($logfile) to determine what"
31 echo "configure was trying to do when it died."
58 echo "$@" >> ${outfile}
63 for opt in ${CMDLINE_SELECT}; do
64 opt2=`echo $opt | sed -e 's;_;-;g'`
66 eval "toggle_${opt}=\"--disable-${opt2}\""
68 eval "toggle_${opt}=\"--enable-${opt2} \""
73 Usage: configure [options]
77 --help print this message
78 --log=yes|no|FILE file configure log is written to [config.log]
79 --target=TARGET target platform tuple [generic-gnu]
80 --cpu=CPU optimize for a specific cpu rather than a family
81 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
82 ${toggle_extra_warnings} emit harmless warnings (always non-fatal)
83 ${toggle_werror} treat warnings as errors, if possible
84 (not available with all compilers)
85 ${toggle_optimizations} turn on/off compiler optimization flags
86 ${toggle_pic} turn on/off Position Independent Code
87 ${toggle_ccache} turn on/off compiler cache
88 ${toggle_debug} enable/disable debug mode
89 ${toggle_gprof} enable/disable gprof profiling instrumentation
90 ${toggle_gcov} enable/disable gcov coverage instrumentation
91 ${toggle_thumb} enable/disable building arm assembly in thumb mode
94 ${toggle_install_docs} control whether docs are installed
95 ${toggle_install_bins} control whether binaries are installed
96 ${toggle_install_libs} control whether libraries are installed
97 ${toggle_install_srcs} control whether sources are installed
109 Object files are built at the place where configure is launched.
111 All boolean options can be negated. The default value is the opposite
112 of that shown above. If the option --disable-foo is listed, then
113 the default value for foo is enabled.
117 show_targets ${all_platforms}
124 while [ -n "$*" ]; do
125 if [ "${1%%-*}" = "${2%%-*}" ]; then
126 if [ "${2%%-*}" = "${3%%-*}" ]; then
127 printf " %-24s %-24s %-24s\n" "$1" "$2" "$3"
130 printf " %-24s %-24s\n" "$1" "$2"
134 printf " %-24s\n" "$1"
147 # List Processing Functions
162 [ $var = $value ] && return 0
169 CFLAGS="${CFLAGS} $@"
170 CXXFLAGS="${CXXFLAGS} $@"
175 CFLAGS="${CFLAGS} $@"
179 add_cxxflags_only() {
180 CXXFLAGS="${CXXFLAGS} $@"
185 LDFLAGS="${LDFLAGS} $@"
190 ASFLAGS="${ASFLAGS} $@"
195 extralibs="${extralibs} $@"
199 # Boolean Manipulation Functions
210 eval test "x\$$1" = "xyes"
214 eval test "x\$$1" = "xno"
220 if ! disabled $var; then
221 log_echo " enabling $var"
229 if ! enabled $var; then
230 log_echo " disabling $var"
238 # Text Processing Functions
241 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
246 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
251 # Temporary File Functions
254 enable_feature source_path_used
255 if [ -z "$source_path" ] || [ "$source_path" = "." ]; then
257 disable_feature source_path_used
260 if test ! -z "$TMPDIR" ; then
262 elif test ! -z "$TEMPDIR" ; then
267 RAND=$(awk 'BEGIN { srand(); printf "%d\n",(rand() * 32768)}')
268 TMP_H="${TMPDIRx}/vpx-conf-$$-${RAND}.h"
269 TMP_C="${TMPDIRx}/vpx-conf-$$-${RAND}.c"
270 TMP_CC="${TMPDIRx}/vpx-conf-$$-${RAND}.cc"
271 TMP_O="${TMPDIRx}/vpx-conf-$$-${RAND}.o"
272 TMP_X="${TMPDIRx}/vpx-conf-$$-${RAND}.x"
273 TMP_ASM="${TMPDIRx}/vpx-conf-$$-${RAND}.asm"
276 rm -f ${TMP_C} ${TMP_CC} ${TMP_H} ${TMP_O} ${TMP_X} ${TMP_ASM}
277 enabled gcov && rm -f ${TMP_C%.c}.gcno ${TMP_CC%.cc}.gcno
281 # Toolchain Check Functions
284 enabled external_build && return
286 "$@" >>${logfile} 2>&1
293 check_cmd ${CC} ${CFLAGS} "$@" -c -o ${TMP_O} ${TMP_C}
300 check_cmd ${CXX} ${CXXFLAGS} "$@" -c -o ${TMP_O} ${TMP_CC}
307 check_cmd ${CC} ${CFLAGS} "$@" -E -o ${TMP_O} ${TMP_C}
313 && check_cmd ${LD} ${LDFLAGS} "$@" -o ${TMP_X} ${TMP_O} ${extralibs}
317 log check_header "$@"
320 var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
322 check_cpp "$@" <<EOF && enable_feature $var
330 log check_cflags "$@"
331 check_cc -Werror "$@" <<EOF
337 log check_cxxflags "$@"
339 # Catch CFLAGS that trigger CXX warnings
341 *c++-analyzer|*clang++|*g++*) check_cxx -Werror "$@" <<EOF
345 *) check_cxx -Werror "$@" <<EOF
353 check_cxxflags "$@" && add_cxxflags_only "$@"
354 check_cflags "$@" && add_cflags_only "$@"
357 check_add_asflags() {
362 check_add_ldflags() {
368 log check_asm_align "$@"
369 cat >${TMP_ASM} <<EOF
374 check_cmd ${AS} ${ASFLAGS} -o ${TMP_O} ${TMP_ASM}
375 readelf -WS ${TMP_O} >${TMP_X}
377 if ! grep -q '\.rodata .* 16$' ${TMP_X}; then
378 die "${AS} ${ASFLAGS} does not support section alignment (nasm <=2.08?)"
382 # tests for -m$1 toggling the feature given in $2. If $2 is empty $1 is used.
383 check_gcc_machine_option() {
386 [ -n "$feature" ] || feature="$opt"
388 if enabled gcc && ! disabled "$feature" && ! check_cflags "-m$opt"; then
389 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-$feature "
391 soft_enable "$feature"
395 write_common_config_banner() {
396 print_webm_license config.mk "##" ""
397 echo '# This file automatically generated by configure. Do not edit!' >> config.mk
398 echo "TOOLCHAIN := ${toolchain}" >> config.mk
402 echo "ALT_LIBC := ${alt_libc}" >> config.mk
407 write_common_config_targets() {
408 for t in ${all_targets}; do
409 if enabled ${t}; then
410 if enabled universal || enabled child; then
411 fwrite config.mk "ALL_TARGETS += ${t}-${toolchain}"
413 fwrite config.mk "ALL_TARGETS += ${t}"
421 write_common_target_config_mk() {
424 enabled ccache && CC="ccache ${CC}"
425 enabled ccache && CXX="ccache ${CXX}"
426 print_webm_license $1 "##" ""
429 # This file automatically generated by configure. Do not edit!
430 SRC_PATH="$source_path"
431 SRC_PATH_BARE=$source_path
432 BUILD_PFX=${BUILD_PFX}
433 TOOLCHAIN=${toolchain}
434 ASM_CONVERSION=${asm_conversion_cmd:-${source_path}/build/make/ads2gas.pl}
435 GEN_VCPROJ=${gen_vcproj_cmd}
436 MSVS_ARCH_DIR=${msvs_arch_dir}
447 CXXFLAGS = ${CXXFLAGS}
448 ARFLAGS = -rus\$(if \$(quiet),c,v)
451 extralibs = ${extralibs}
452 AS_SFX = ${AS_SFX:-.asm}
454 VCPROJ_SFX = ${VCPROJ_SFX}
455 RTCD_OPTIONS = ${RTCD_OPTIONS}
458 if enabled rvct; then cat >> $1 << EOF
459 fmt_deps = sed -e 's;^__image.axf;\${@:.d=.o} \$@;' #hide
461 else cat >> $1 << EOF
462 fmt_deps = sed -e 's;^\([a-zA-Z0-9_]*\)\.o;\${@:.d=.o} \$@;'
466 print_config_mk ARCH "${1}" ${ARCH_LIST}
467 print_config_mk HAVE "${1}" ${HAVE_LIST}
468 print_config_mk CONFIG "${1}" ${CONFIG_LIST}
469 print_config_mk HAVE "${1}" gnu_strip
471 enabled msvs && echo "CONFIG_VS_VERSION=${vs_version}" >> "${1}"
478 write_common_target_config_h() {
479 print_webm_license ${TMP_H} "/*" " */"
480 cat >> ${TMP_H} << EOF
481 /* This file automatically generated by configure. Do not edit! */
484 #define RESTRICT ${RESTRICT}
485 #define INLINE ${INLINE}
487 print_config_h ARCH "${TMP_H}" ${ARCH_LIST}
488 print_config_h HAVE "${TMP_H}" ${HAVE_LIST}
489 print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST}
490 print_config_vars_h "${TMP_H}" ${VAR_LIST}
491 echo "#endif /* VPX_CONFIG_H */" >> ${TMP_H}
492 mkdir -p `dirname "$1"`
493 cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1"
496 process_common_cmdline() {
500 --child) enable_feature child
504 if ! disabled logging ; then
505 enabled logging || logfile="$logging"
510 --target=*) toolchain="${toolchain:-${optval}}"
512 --force-target=*) toolchain="${toolchain:-${optval}}"; enable_feature force_toolchain
516 --cpu=*) tune_cpu="$optval"
519 extra_cflags="${optval}"
521 --enable-?*|--disable-?*)
522 eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
523 if echo "${ARCH_EXT_LIST}" | grep "^ *$option\$" >/dev/null; then
524 [ $action = "disable" ] && RTCD_OPTIONS="${RTCD_OPTIONS}--disable-${option} "
525 elif [ $action = "disable" ] && ! disabled $option ; then
526 echo "${CMDLINE_SELECT}" | grep "^ *$option\$" >/dev/null ||
528 elif [ $action = "enable" ] && ! enabled $option ; then
529 echo "${CMDLINE_SELECT}" | grep "^ *$option\$" >/dev/null ||
532 ${action}_feature $option
535 eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
536 if echo "${ARCH_EXT_LIST}" none | grep "^ *$option\$" >/dev/null; then
537 RTCD_OPTIONS="${RTCD_OPTIONS}${opt} "
542 --force-enable-?*|--force-disable-?*)
543 eval `echo "$opt" | sed 's/--force-/action=/;s/-/ option=/;s/-/_/g'`
544 ${action}_feature $option
547 [ -d "${optval}" ] || die "Not a directory: ${optval}"
548 disable_feature builtin_libc
552 [ "${optval}" = yasm ] || [ "${optval}" = nasm ] \
553 || [ "${optval}" = auto ] \
554 || die "Must be yasm, nasm or auto: ${optval}"
560 VAR_LIST="DECODE_WIDTH_LIMIT ${w} DECODE_HEIGHT_LIMIT ${h}"
561 [ ${w} -gt 0 ] && [ ${h} -gt 0 ] || die "Invalid size-limit: too small."
562 [ ${w} -lt 65536 ] && [ ${h} -lt 65536 ] \
563 || die "Invalid size-limit: too big."
564 enable_feature size_limit
573 [ -d "${optval}" ] || die "Not a directory: ${optval}"
576 --libc|--as|--prefix|--libdir|--sdk-path)
577 die "Option ${opt} requires argument"
591 *) process_common_cmdline $opt
598 post_process_common_cmdline() {
599 prefix="${prefix:-/usr/local}"
601 libdir="${libdir:-${prefix}/lib}"
603 if [ "${libdir#${prefix}}" = "${libdir}" ]; then
604 die "Libdir ${libdir} must be a subdirectory of ${prefix}"
609 post_process_cmdline() {
613 setup_gnu_toolchain() {
614 CC=${CC:-${CROSS}gcc}
615 CXX=${CXX:-${CROSS}g++}
617 LD=${LD:-${CROSS}${link_with_cc:-ld}}
619 STRIP=${STRIP:-${CROSS}strip}
625 process_common_toolchain() {
626 if [ -z "$toolchain" ]; then
627 gcctarget="${CHOST:-$(gcc -dumpmachine 2> /dev/null)}"
692 [ -z "$tgt_isa" ] && tgt_isa=x86
706 if [ -n "$tgt_isa" ] && [ -n "$tgt_os" ]; then
707 toolchain=${tgt_isa}-${tgt_os}-gcc
711 toolchain=${toolchain:-generic-gnu}
713 is_in ${toolchain} ${all_platforms} || enabled force_toolchain \
714 || die "Unrecognized toolchain '${toolchain}'"
716 enabled child || log_echo "Configuring for target '${toolchain}'"
719 # Set up toolchain variables
721 tgt_isa=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $1}')
722 tgt_os=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $2}')
723 tgt_cc=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $3}')
725 # Mark the specific ISA requested as enabled
726 soft_enable ${tgt_isa}
727 enable_feature ${tgt_os}
728 enable_feature ${tgt_cc}
730 # Enable the architecture family
732 arm*) enable_feature arm;;
733 mips*) enable_feature mips;;
736 # PIC is probably what we want when building shared libs
737 enabled shared && soft_enable pic
739 # Handle darwin variants. Newer SDKs allow targeting older
740 # platforms, so find the newest SDK available.
743 if [ -z "${DEVELOPER_DIR}" ]; then
744 DEVELOPER_DIR=`xcode-select -print-path 2> /dev/null`
745 [ $? -ne 0 ] && OSX_SKIP_DIR_CHECK=1
747 if [ -z "${OSX_SKIP_DIR_CHECK}" ]; then
748 OSX_SDK_ROOTS="${DEVELOPER_DIR}/SDKs"
749 OSX_SDK_VERSIONS="MacOSX10.4u.sdk MacOSX10.5.sdk MacOSX10.6.sdk"
750 OSX_SDK_VERSIONS="${OSX_SDK_VERSIONS} MacOSX10.7.sdk"
751 for v in ${OSX_SDK_VERSIONS}; do
752 if [ -d "${OSX_SDK_ROOTS}/${v}" ]; then
753 osx_sdk_dir="${OSX_SDK_ROOTS}/${v}"
760 if [ -d "${osx_sdk_dir}" ]; then
761 add_cflags "-isysroot ${osx_sdk_dir}"
762 add_ldflags "-isysroot ${osx_sdk_dir}"
767 add_cflags "-mmacosx-version-min=10.4"
768 add_ldflags "-mmacosx-version-min=10.4"
771 add_cflags "-mmacosx-version-min=10.5"
772 add_ldflags "-mmacosx-version-min=10.5"
775 add_cflags "-mmacosx-version-min=10.6"
776 add_ldflags "-mmacosx-version-min=10.6"
779 add_cflags "-mmacosx-version-min=10.7"
780 add_ldflags "-mmacosx-version-min=10.7"
783 add_cflags "-mmacosx-version-min=10.8"
784 add_ldflags "-mmacosx-version-min=10.8"
787 add_cflags "-mmacosx-version-min=10.9"
788 add_ldflags "-mmacosx-version-min=10.9"
791 add_cflags "-miphoneos-version-min=5.0"
792 add_ldflags "-miphoneos-version-min=5.0"
793 osx_sdk_dir="$(xcrun --sdk iphonesimulator --show-sdk-path)"
794 add_cflags "-isysroot ${osx_sdk_dir}"
795 add_ldflags "-isysroot ${osx_sdk_dir}"
799 # Handle Solaris variants. Solaris 10 needs -lposix4
802 add_extralibs -lposix4
803 disable_feature fast_unaligned
806 add_extralibs -lposix4
810 # Process ARM architecture variants
813 # on arm, isa versions are supersets
823 soft_enable fast_unaligned
828 soft_enable fast_unaligned
832 disable_feature fast_unaligned
836 asm_conversion_cmd="cat"
840 CROSS=${CROSS:-arm-none-linux-gnueabi-}
843 arch_int=${tgt_isa##armv}
844 arch_int=${arch_int%%te}
845 check_add_asflags --defsym ARCHITECTURE=${arch_int}
846 tune_cflags="-mtune="
847 if [ ${tgt_isa} = "armv7" ] || [ ${tgt_isa} = "armv7s" ]; then
848 if [ -z "${float_abi}" ]; then
849 check_cpp <<EOF && float_abi=hard || float_abi=softfp
850 #ifndef __ARM_PCS_VFP
855 check_add_cflags -march=armv7-a -mfloat-abi=${float_abi}
856 check_add_asflags -march=armv7-a -mfloat-abi=${float_abi}
858 if enabled neon || enabled neon_asm
860 check_add_cflags -mfpu=neon #-ftree-vectorize
861 check_add_asflags -mfpu=neon
864 if [ -z "${tune_cpu}" ]; then
868 check_add_cflags -march=${tgt_isa}
869 check_add_asflags -march=${tgt_isa}
872 enabled debug && add_asflags -g
873 asm_conversion_cmd="${source_path}/build/make/ads2gas.pl"
874 if enabled thumb; then
875 asm_conversion_cmd="$asm_conversion_cmd -thumb"
876 check_add_cflags -mthumb
877 check_add_asflags -mthumb -mimplicit-it=always
881 asm_conversion_cmd="${source_path}/build/make/ads2armasm_ms.pl"
883 msvs_arch_dir=arm-msvs
884 disable_feature multithread
885 disable_feature unit_tests
886 vs_version=${tgt_cc##vs}
887 if [ $vs_version -ge 12 ]; then
888 # MSVC 2013 doesn't allow doing plain .exe projects for ARM,
889 # only "AppContainerApplication" which requires an AppxManifest.
890 # Therefore disable the examples, just build the library.
891 disable_feature examples
898 LD="${source_path}/build/make/armlink_adapter.sh"
899 STRIP=arm-none-linux-gnueabi-strip
900 NM=arm-none-linux-gnueabi-nm
902 tune_asflags="--cpu="
903 if [ -z "${tune_cpu}" ]; then
904 if [ ${tgt_isa} = "armv7" ]; then
905 if enabled neon || enabled neon_asm
907 check_add_cflags --fpu=softvfp+vfpv3
908 check_add_asflags --fpu=softvfp+vfpv3
910 check_add_cflags --cpu=Cortex-A8
911 check_add_asflags --cpu=Cortex-A8
913 check_add_cflags --cpu=${tgt_isa##armv}
914 check_add_asflags --cpu=${tgt_isa##armv}
917 arch_int=${tgt_isa##armv}
918 arch_int=${arch_int%%te}
919 check_add_asflags --pd "\"ARCHITECTURE SETA ${arch_int}\""
920 enabled debug && add_asflags -g
922 add_cflags --enum_is_int
929 disable_feature multithread
930 disable_feature os_support
935 COMPILER_LOCATION=`find "${SDK_PATH}" \
936 -name "arm-linux-androideabi-gcc*" -print -quit`
937 TOOLCHAIN_PATH=${COMPILER_LOCATION%/*}/arm-linux-androideabi-
938 CC=${TOOLCHAIN_PATH}gcc
939 CXX=${TOOLCHAIN_PATH}g++
940 AR=${TOOLCHAIN_PATH}ar
941 LD=${TOOLCHAIN_PATH}gcc
942 AS=${TOOLCHAIN_PATH}as
943 STRIP=${TOOLCHAIN_PATH}strip
944 NM=${TOOLCHAIN_PATH}nm
946 if [ -z "${alt_libc}" ]; then
947 alt_libc=`find "${SDK_PATH}" -name arch-arm -print | \
948 awk '{n = split($0,a,"/"); \
949 split(a[n-1],b,"-"); \
950 print $0 " " b[2]}' | \
952 awk '{ print $1 }' | tail -1`
955 add_cflags "--sysroot=${alt_libc}"
956 add_ldflags "--sysroot=${alt_libc}"
958 # linker flag that routes around a CPU bug in some
959 # Cortex-A8 implementations (NDK Dev Guide)
960 add_ldflags "-Wl,--fix-cortex-a8"
963 soft_enable realtime_only
964 if [ ${tgt_isa} = "armv7" ]; then
965 soft_enable runtime_cpu_detect
967 if enabled runtime_cpu_detect; then
968 add_cflags "-I${SDK_PATH}/sources/android/cpufeatures"
974 XCRUN_FIND="xcrun --sdk iphoneos -find"
975 CXX="$(${XCRUN_FIND} clang++)"
976 CC="$(${XCRUN_FIND} clang)"
977 AR="$(${XCRUN_FIND} ar)"
978 LD="$(${XCRUN_FIND} ld)"
979 AS="$(${XCRUN_FIND} as)"
980 STRIP="$(${XCRUN_FIND} strip)"
981 NM="$(${XCRUN_FIND} nm)"
982 RANLIB="$(${XCRUN_FIND} ranlib)"
985 # ASFLAGS is written here instead of using check_add_asflags
986 # because we need to overwrite all of ASFLAGS and purge the
987 # options that were put in above
988 ASFLAGS="-arch ${tgt_isa} -g"
990 alt_libc="$(xcrun --sdk iphoneos --show-sdk-path)"
991 add_cflags -arch ${tgt_isa} -isysroot ${alt_libc}
992 add_ldflags -arch ${tgt_isa} -ios_version_min 7.0
994 for d in lib usr/lib usr/lib/system; do
995 try_dir="${alt_libc}/${d}"
996 [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
999 asm_conversion_cmd="${source_path}/build/make/ads2gas_apple.pl"
1003 enable_feature linux
1004 if enabled rvct; then
1005 # Check if we have CodeSourcery GCC in PATH. Needed for
1007 hash arm-none-linux-gnueabi-gcc 2>&- || \
1008 die "Couldn't find CodeSourcery GCC from PATH"
1010 # Use armcc as a linker to enable translation of
1011 # some gcc specific options such as -lm and -lpthread.
1012 LD="armcc --translate_gcc"
1014 # create configuration file (uses path to CodeSourcery GCC)
1015 armcc --arm_linux_configure --arm_linux_config_file=arm_linux.cfg
1017 add_cflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
1018 add_asflags --no_hide_all --apcs=/interwork
1019 add_ldflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
1020 enabled pic && add_cflags --apcs=/fpic
1021 enabled pic && add_asflags --apcs=/fpic
1022 enabled shared && add_cflags --shared
1031 tune_cflags="-mtune="
1032 if enabled dspr2; then
1033 check_add_cflags -mips32r2 -mdspr2
1034 disable_feature fast_unaligned
1036 check_add_cflags -march=${tgt_isa}
1037 check_add_asflags -march=${tgt_isa}
1038 check_add_asflags -KPIC
1042 bits=${tgt_isa##ppc}
1045 add_asflags -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
1047 enabled altivec && add_cflags -maltivec
1051 add_asflags -maltivec -mregnames -I"\$(dir \$<)linux"
1054 darwin_arch="-arch ppc"
1055 enabled ppc64 && darwin_arch="${darwin_arch}64"
1056 add_cflags ${darwin_arch} -m${bits} -fasm-blocks
1057 add_asflags ${darwin_arch} -force_cpusubtype_ALL -I"\$(dir \$<)darwin"
1058 add_ldflags ${darwin_arch} -m${bits}
1059 enabled altivec && add_cflags -faltivec
1066 enabled gcc && add_cflags -fno-common
1069 CC=${CC:-${CROSS}gcc}
1070 CXX=${CXX:-${CROSS}g++}
1071 LD=${LD:-${CROSS}gcc}
1079 AS="${alt_as:-${AS:-auto}}"
1085 add_cflags -use-msasm # remove -use-msasm too?
1086 # add -no-intel-extensions to suppress warning #10237
1087 # refer to http://software.intel.com/en-us/forums/topic/280199
1088 add_ldflags -i-static -no-intel-extensions
1089 enabled x86_64 && add_cflags -ipo -static -O3 -no-prec-div
1090 enabled x86_64 && AR=xiar
1094 tune_cpu="SSE3_ATOM"
1097 tune_cflags="-march="
1103 tune_cflags="-march="
1105 #for 32 bit x86 builds, -O3 did not turn on this flag
1106 enabled optimizations && disabled gprof && check_add_cflags -fomit-frame-pointer
1109 # When building with Microsoft Visual Studio the assembler is
1110 # invoked directly. Checking at configure time is unnecessary.
1111 # Skip the check by setting AS arbitrarily
1113 msvs_arch_dir=x86-msvs
1114 vc_version=${tgt_cc##vs}
1117 echo "${tgt_cc} does not support avx/avx2, disabling....."
1118 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx --disable-avx2 "
1127 enabled x86_64 && bits=64
1128 check_cpp <<EOF && bits=x32
1135 add_cflags -m${bits}
1136 add_ldflags -m${bits}
1140 soft_enable runtime_cpu_detect
1141 # We can't use 'check_cflags' until the compiler is configured and CC is
1143 check_gcc_machine_option mmx
1144 check_gcc_machine_option sse
1145 check_gcc_machine_option sse2
1146 check_gcc_machine_option sse3
1147 check_gcc_machine_option ssse3
1148 check_gcc_machine_option sse4 sse4_1
1149 check_gcc_machine_option avx
1150 check_gcc_machine_option avx2
1154 which nasm >/dev/null 2>&1 && AS=nasm
1155 which yasm >/dev/null 2>&1 && AS=yasm
1156 [ "${AS}" = auto ] || [ -z "${AS}" ] \
1157 && die "Neither yasm nor nasm have been found"
1160 log_echo " using $AS"
1161 [ "${AS##*/}" = nasm ] && add_asflags -Ox
1165 add_asflags -f win32
1166 enabled debug && add_asflags -g cv8
1171 enabled debug && add_asflags -g cv8
1174 linux*|solaris*|android*)
1175 add_asflags -f elf${bits}
1176 enabled debug && [ "${AS}" = yasm ] && add_asflags -g dwarf2
1177 enabled debug && [ "${AS}" = nasm ] && add_asflags -g
1178 [ "${AS##*/}" = nasm ] && check_asm_align
1181 add_asflags -f macho${bits}
1182 enabled x86 && darwin_arch="-arch i386" || darwin_arch="-arch x86_64"
1183 add_cflags ${darwin_arch}
1184 add_ldflags ${darwin_arch}
1185 # -mdynamic-no-pic is still a bit of voodoo -- it was required at
1186 # one time, but does not seem to be now, and it breaks some of the
1187 # code that still relies on inline assembly.
1188 # enabled icc && ! enabled pic && add_cflags -fno-pic -mdynamic-no-pic
1189 enabled icc && ! enabled pic && add_cflags -fno-pic
1192 add_asflags -f macho${bits}
1193 enabled x86 && sim_arch="-arch i386" || sim_arch="-arch x86_64"
1194 add_cflags ${sim_arch}
1195 add_ldflags ${sim_arch}
1199 enabled debug && add_asflags -g
1202 *) log "Warning: Unknown os $tgt_os while setting up $AS flags"
1206 universal*|*-gcc|generic-gnu)
1213 # Try to enable CPU specific tuning
1214 if [ -n "${tune_cpu}" ]; then
1215 if [ -n "${tune_cflags}" ]; then
1216 check_add_cflags ${tune_cflags}${tune_cpu} || \
1217 die "Requested CPU '${tune_cpu}' not supported by compiler"
1219 if [ -n "${tune_asflags}" ]; then
1220 check_add_asflags ${tune_asflags}${tune_cpu} || \
1221 die "Requested CPU '${tune_cpu}' not supported by assembler"
1223 if [ -z "${tune_cflags}${tune_asflags}" ]; then
1224 log_echo "Warning: CPU tuning not supported by this toolchain"
1228 if enabled debug; then
1229 check_add_cflags -g && check_add_ldflags -g
1231 check_add_cflags -DNDEBUG
1234 enabled gprof && check_add_cflags -pg && check_add_ldflags -pg
1236 check_add_cflags -fprofile-arcs -ftest-coverage &&
1237 check_add_ldflags -fprofile-arcs -ftest-coverage
1239 if enabled optimizations; then
1240 if enabled rvct; then
1241 enabled small && check_add_cflags -Ospace || check_add_cflags -Otime
1243 enabled small && check_add_cflags -O2 || check_add_cflags -O3
1247 tgt_os_no_version=$(echo "${tgt_os}" | tr -d "[0-9]")
1248 # Default use_x86inc to yes when we are 64 bit, non-pic, or on any
1249 # non-Darwin target.
1250 if [ "${tgt_isa}" = "x86_64" ] || [ "${pic}" != "yes" ] || \
1251 [ "${tgt_os_no_version}" != "darwin" ]; then
1252 soft_enable use_x86inc
1255 # Position Independent Code (PIC) support, for building relocatable
1257 enabled gcc && enabled pic && check_add_cflags -fPIC
1259 # Work around longjmp interception on glibc >= 2.11, to improve binary
1260 # compatibility. See http://code.google.com/p/webm/issues/detail?id=166
1261 enabled linux && check_add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
1263 # Check for strip utility variant
1264 ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable_feature gnu_strip
1266 # Try to determine target endianness
1268 unsigned int e = 'O'<<24 | '2'<<16 | 'B'<<8 | 'E';
1270 [ -f "${TMP_O}" ] && od -A n -t x1 "${TMP_O}" | tr -d '\n' |
1271 grep '4f *32 *42 *45' >/dev/null 2>&1 && enable_feature big_endian
1273 # Try to find which inline keywords are supported
1274 check_cc <<EOF && INLINE="inline"
1275 static inline function() {}
1277 check_cc <<EOF && INLINE="__inline__ __attribute__((always_inline))"
1278 static __attribute__((always_inline)) function() {}
1281 # Almost every platform uses pthreads.
1282 if enabled multithread; then
1283 case ${toolchain} in
1286 *) check_header pthread.h && add_extralibs -lpthread
1290 # only for MIPS platforms
1291 case ${toolchain} in
1293 if enabled dspr2; then
1294 if enabled big_endian; then
1295 echo "dspr2 optimizations are available only for little endian platforms"
1296 disable_feature dspr2
1303 if enabled linux; then
1304 add_cflags -D_LARGEFILE_SOURCE
1305 add_cflags -D_FILE_OFFSET_BITS=64
1308 # append any user defined extra cflags
1309 if [ -n "${extra_cflags}" ] ; then
1310 check_add_cflags ${extra_cflags} || \
1311 die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
1315 process_toolchain() {
1316 process_common_toolchain
1320 saved_prefix="${prefix}"
1325 if enabled $cfg; then
1326 upname="`toupper $cfg`"
1327 echo "${prefix}_${upname}=yes" >> $makefile
1330 prefix="${saved_prefix}"
1334 saved_prefix="${prefix}"
1339 upname="`toupper $cfg`"
1340 if enabled $cfg; then
1341 echo "#define ${prefix}_${upname} 1" >> $header
1343 echo "#define ${prefix}_${upname} 0" >> $header
1346 prefix="${saved_prefix}"
1349 print_config_vars_h() {
1352 while [ $# -gt 0 ]; do
1353 upname="`toupper $1`"
1354 echo "#define ${upname} $2" >> $header
1359 print_webm_license() {
1360 saved_prefix="${prefix}"
1365 cat <<EOF > ${destination}
1366 ${prefix} Copyright (c) 2011 The WebM project authors. All Rights Reserved.${suffix}
1368 ${prefix} Use of this source code is governed by a BSD-style license${suffix}
1369 ${prefix} that can be found in the LICENSE file in the root of the source${suffix}
1370 ${prefix} tree. An additional intellectual property rights grant can be found${suffix}
1371 ${prefix} in the file PATENTS. All contributing project authors may${suffix}
1372 ${prefix} be found in the AUTHORS file in the root of the source tree.${suffix}
1374 prefix="${saved_prefix}"
1385 enable_feature logging
1386 logfile="config.log"
1390 process_cmdline "$@"
1391 if enabled child; then
1392 echo "# ${self} $@" >> ${logfile}
1394 echo "# ${self} $@" > ${logfile}
1396 post_process_common_cmdline
1397 post_process_cmdline
1402 OOT_INSTALLS="${OOT_INSTALLS}"
1403 if enabled source_path_used; then
1404 # Prepare the PWD for building.
1405 for f in ${OOT_INSTALLS}; do
1406 install -D "${source_path}/$f" "$f"
1409 cp "${source_path}/build/make/Makefile" .