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 $0 --help for available options."
26 echo "Configuration failed. This could reflect a misconfiguration of your"
27 echo "toolchains, improper options selected, or another problem. If you"
28 echo "don't see any useful error messages above, the next step is to look"
29 echo "at the configure error log file ($logfile) to determine what"
30 echo "configure was trying to do when it died."
53 echo "$@" >> ${outfile}
57 for opt in ${CMDLINE_SELECT}; do
58 opt2=`echo $opt | sed -e 's;_;-;g'`
60 eval "toggle_${opt}=\"--disable-${opt2}\""
62 eval "toggle_${opt}=\"--enable-${opt2} \""
67 Usage: configure [options]
71 --help print this message
72 --log=yes|no|FILE file configure log is written to [config.log]
73 --target=TARGET target platform tuple [generic-gnu]
74 --cpu=CPU optimize for a specific cpu rather than a family
75 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
76 --extra-cxxflags=ECXXFLAGS add ECXXFLAGS to CXXFLAGS [$CXXFLAGS]
77 ${toggle_extra_warnings} emit harmless warnings (always non-fatal)
78 ${toggle_werror} treat warnings as errors, if possible
79 (not available with all compilers)
80 ${toggle_optimizations} turn on/off compiler optimization flags
81 ${toggle_pic} turn on/off Position Independent Code
82 ${toggle_ccache} turn on/off compiler cache
83 ${toggle_debug} enable/disable debug mode
84 ${toggle_gprof} enable/disable gprof profiling instrumentation
85 ${toggle_gcov} enable/disable gcov coverage instrumentation
86 ${toggle_thumb} enable/disable building arm assembly in thumb mode
87 ${toggle_dependency_tracking}
88 disable to speed up one-time build
91 ${toggle_install_docs} control whether docs are installed
92 ${toggle_install_bins} control whether binaries are installed
93 ${toggle_install_libs} control whether libraries are installed
94 ${toggle_install_srcs} control whether sources are installed
105 Object files are built at the place where configure is launched.
107 All boolean options can be negated. The default value is the opposite
108 of that shown above. If the option --disable-foo is listed, then
109 the default value for foo is enabled.
113 show_targets ${all_platforms}
119 while [ -n "$*" ]; do
120 if [ "${1%%-*}" = "${2%%-*}" ]; then
121 if [ "${2%%-*}" = "${3%%-*}" ]; then
122 printf " %-24s %-24s %-24s\n" "$1" "$2" "$3"
125 printf " %-24s %-24s\n" "$1" "$2"
129 printf " %-24s\n" "$1"
141 # List Processing Functions
155 [ $var = $value ] && return 0
161 CFLAGS="${CFLAGS} $@"
162 CXXFLAGS="${CXXFLAGS} $@"
166 CFLAGS="${CFLAGS} $@"
169 add_cxxflags_only() {
170 CXXFLAGS="${CXXFLAGS} $@"
174 LDFLAGS="${LDFLAGS} $@"
178 ASFLAGS="${ASFLAGS} $@"
182 extralibs="${extralibs} $@"
186 # Boolean Manipulation Functions
198 eval test "x\$$1" = "xyes"
202 eval test "x\$$1" = "xno"
206 enabled "${1}" || echo " enabling ${1}"
207 enable_feature "${1}"
209 is_in "${1}" vp8 vp9 && enable_feature "${1}_encoder" "${1}_decoder"
213 disabled "${1}" || echo " disabling ${1}"
214 disable_feature "${1}"
216 is_in "${1}" vp8 vp9 && disable_feature "${1}_encoder" "${1}_decoder"
219 # Iterates through positional parameters, checks to confirm the parameter has
220 # not been explicitly (force) disabled, and enables the setting controlled by
221 # the parameter when the setting is not disabled.
222 # Note: Does NOT alter RTCD generation options ($RTCD_OPTIONS).
225 if ! disabled $var; then
226 enabled $var || log_echo " enabling $var"
232 # Iterates through positional parameters, checks to confirm the parameter has
233 # not been explicitly (force) enabled, and disables the setting controlled by
234 # the parameter when the setting is not enabled.
235 # Note: Does NOT alter RTCD generation options ($RTCD_OPTIONS).
238 if ! enabled $var; then
239 disabled $var || log_echo " disabling $var"
246 # Text Processing Functions
249 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
253 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
257 # Temporary File Functions
260 enable_feature source_path_used
261 if [ -z "$source_path" ] || [ "$source_path" = "." ]; then
263 disable_feature source_path_used
266 if test ! -z "$TMPDIR" ; then
268 elif test ! -z "$TEMPDIR" ; then
273 RAND=$(awk 'BEGIN { srand(); printf "%d\n",(rand() * 32768)}')
274 TMP_H="${TMPDIRx}/vpx-conf-$$-${RAND}.h"
275 TMP_C="${TMPDIRx}/vpx-conf-$$-${RAND}.c"
276 TMP_CC="${TMPDIRx}/vpx-conf-$$-${RAND}.cc"
277 TMP_O="${TMPDIRx}/vpx-conf-$$-${RAND}.o"
278 TMP_X="${TMPDIRx}/vpx-conf-$$-${RAND}.x"
279 TMP_ASM="${TMPDIRx}/vpx-conf-$$-${RAND}.asm"
282 rm -f ${TMP_C} ${TMP_CC} ${TMP_H} ${TMP_O} ${TMP_X} ${TMP_ASM}
283 enabled gcov && rm -f ${TMP_C%.c}.gcno ${TMP_CC%.cc}.gcno
287 # Toolchain Check Functions
290 enabled external_build && return
292 "$@" >>${logfile} 2>&1
299 check_cmd ${CC} ${CFLAGS} "$@" -c -o ${TMP_O} ${TMP_C}
306 check_cmd ${CXX} ${CXXFLAGS} "$@" -c -o ${TMP_O} ${TMP_CC}
313 check_cmd ${CC} ${CFLAGS} "$@" -E -o ${TMP_O} ${TMP_C}
319 && check_cmd ${LD} ${LDFLAGS} "$@" -o ${TMP_X} ${TMP_O} ${extralibs}
325 && check_cmd ${LD} ${LDFLAGS} -o ${TMP_X} ${TMP_O} "$@" ${extralibs}
329 log check_header "$@"
332 var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
334 check_cpp "$@" <<EOF && enable_feature $var
341 log check_cflags "$@"
342 check_cc -Werror "$@" <<EOF
348 log check_cxxflags "$@"
350 # Catch CFLAGS that trigger CXX warnings
352 *c++-analyzer|*clang++|*g++*)
353 check_cxx -Werror "$@" <<EOF
358 check_cxx -Werror "$@" <<EOF
366 check_cxxflags "$@" && add_cxxflags_only "$@"
367 check_cflags "$@" && add_cflags_only "$@"
370 check_add_cxxflags() {
371 check_cxxflags "$@" && add_cxxflags_only "$@"
374 check_add_asflags() {
379 check_add_ldflags() {
385 log check_asm_align "$@"
386 cat >${TMP_ASM} <<EOF
391 check_cmd ${AS} ${ASFLAGS} -o ${TMP_O} ${TMP_ASM}
392 readelf -WS ${TMP_O} >${TMP_X}
394 if ! grep -q '\.rodata .* 16$' ${TMP_X}; then
395 die "${AS} ${ASFLAGS} does not support section alignment (nasm <=2.08?)"
399 # tests for -m$1 toggling the feature given in $2. If $2 is empty $1 is used.
400 check_gcc_machine_option() {
403 [ -n "$feature" ] || feature="$opt"
405 if enabled gcc && ! disabled "$feature" && ! check_cflags "-m$opt"; then
406 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-$feature "
408 soft_enable "$feature"
412 # tests for -m$2, -m$3, -m$4... toggling the feature given in $1.
413 check_gcc_machine_options() {
419 flags="$flags -m$opt"
422 if enabled gcc && ! disabled "$feature" && ! check_cflags $flags; then
423 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-$feature "
425 soft_enable "$feature"
429 check_gcc_avx512_compiles() {
430 if disabled gcc; then
434 check_cc -mavx512f <<EOF
435 #include <immintrin.h>
437 __m512i x = _mm512_set1_epi16(0);
442 if [ ${compile_result} -ne 0 ]; then
443 log_echo " disabling avx512: not supported by compiler"
444 disable_feature avx512
445 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx512 "
449 write_common_config_banner() {
450 print_webm_license config.mk "##" ""
451 echo '# This file automatically generated by configure. Do not edit!' >> config.mk
452 echo "TOOLCHAIN := ${toolchain}" >> config.mk
456 echo "ALT_LIBC := ${alt_libc}" >> config.mk
461 write_common_config_targets() {
462 for t in ${all_targets}; do
463 if enabled ${t}; then
464 if enabled child; then
465 fwrite config.mk "ALL_TARGETS += ${t}-${toolchain}"
467 fwrite config.mk "ALL_TARGETS += ${t}"
475 write_common_target_config_mk() {
478 enabled ccache && CC="ccache ${CC}"
479 enabled ccache && CXX="ccache ${CXX}"
480 print_webm_license $1 "##" ""
483 # This file automatically generated by configure. Do not edit!
484 SRC_PATH="$source_path"
485 SRC_PATH_BARE=$source_path
486 BUILD_PFX=${BUILD_PFX}
487 TOOLCHAIN=${toolchain}
488 ASM_CONVERSION=${asm_conversion_cmd:-${source_path}/build/make/ads2gas.pl}
489 GEN_VCPROJ=${gen_vcproj_cmd}
490 MSVS_ARCH_DIR=${msvs_arch_dir}
501 CXXFLAGS = ${CXXFLAGS}
502 ARFLAGS = -crs\$(if \$(quiet),,v)
505 extralibs = ${extralibs}
506 AS_SFX = ${AS_SFX:-.asm}
508 VCPROJ_SFX = ${VCPROJ_SFX}
509 RTCD_OPTIONS = ${RTCD_OPTIONS}
510 LIBYUV_CXXFLAGS = ${LIBYUV_CXXFLAGS}
513 if enabled rvct; then cat >> $1 << EOF
514 fmt_deps = sed -e 's;^__image.axf;\${@:.d=.o} \$@;' #hide
516 else cat >> $1 << EOF
517 fmt_deps = sed -e 's;^\([a-zA-Z0-9_]*\)\.o;\${@:.d=.o} \$@;'
521 print_config_mk VPX_ARCH "${1}" ${ARCH_LIST}
522 print_config_mk HAVE "${1}" ${HAVE_LIST}
523 print_config_mk CONFIG "${1}" ${CONFIG_LIST}
524 print_config_mk HAVE "${1}" gnu_strip
526 enabled msvs && echo "CONFIG_VS_VERSION=${vs_version}" >> "${1}"
532 write_common_target_config_h() {
533 print_webm_license ${TMP_H} "/*" " */"
534 cat >> ${TMP_H} << EOF
535 /* This file automatically generated by configure. Do not edit! */
538 #define RESTRICT ${RESTRICT}
539 #define INLINE ${INLINE}
541 print_config_h VPX_ARCH "${TMP_H}" ${ARCH_LIST}
542 print_config_h HAVE "${TMP_H}" ${HAVE_LIST}
543 print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST}
544 print_config_vars_h "${TMP_H}" ${VAR_LIST}
545 echo "#endif /* VPX_CONFIG_H */" >> ${TMP_H}
546 mkdir -p `dirname "$1"`
547 cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1"
550 write_win_arm64_neon_h_workaround() {
551 print_webm_license ${TMP_H} "/*" " */"
552 cat >> ${TMP_H} << EOF
553 /* This file automatically generated by configure. Do not edit! */
554 #ifndef VPX_WIN_ARM_NEON_H_WORKAROUND
555 #define VPX_WIN_ARM_NEON_H_WORKAROUND
556 /* The Windows SDK has arm_neon.h, but unlike on other platforms it is
557 * ARM32-only. ARM64 NEON support is provided by arm64_neon.h, a proper
558 * superset of arm_neon.h. Work around this by providing a more local
559 * arm_neon.h that simply #includes arm64_neon.h.
561 #include <arm64_neon.h>
562 #endif /* VPX_WIN_ARM_NEON_H_WORKAROUND */
564 mkdir -p `dirname "$1"`
565 cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1"
568 process_common_cmdline() {
577 if ! disabled logging ; then
578 enabled logging || logfile="$logging"
584 toolchain="${toolchain:-${optval}}"
587 toolchain="${toolchain:-${optval}}"
588 enable_feature force_toolchain
594 extra_cflags="${optval}"
597 extra_cxxflags="${optval}"
599 --enable-?*|--disable-?*)
600 eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
601 if is_in ${option} ${ARCH_EXT_LIST}; then
602 [ $action = "disable" ] && RTCD_OPTIONS="${RTCD_OPTIONS}--disable-${option} "
603 elif [ $action = "disable" ] && ! disabled $option ; then
604 is_in ${option} ${CMDLINE_SELECT} || die_unknown $opt
605 log_echo " disabling $option"
606 elif [ $action = "enable" ] && ! enabled $option ; then
607 is_in ${option} ${CMDLINE_SELECT} || die_unknown $opt
608 log_echo " enabling $option"
610 ${action}_feature $option
613 eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
614 if is_in ${option} ${ARCH_EXT_LIST}; then
615 RTCD_OPTIONS="${RTCD_OPTIONS}${opt} "
620 --force-enable-?*|--force-disable-?*)
621 eval `echo "$opt" | sed 's/--force-/action=/;s/-/ option=/;s/-/_/g'`
622 ${action}_feature $option
625 [ -d "${optval}" ] || die "Not a directory: ${optval}"
626 disable_feature builtin_libc
630 [ "${optval}" = yasm ] || [ "${optval}" = nasm ] \
631 || [ "${optval}" = auto ] \
632 || die "Must be yasm, nasm or auto: ${optval}"
638 VAR_LIST="DECODE_WIDTH_LIMIT ${w} DECODE_HEIGHT_LIMIT ${h}"
639 [ ${w} -gt 0 ] && [ ${h} -gt 0 ] || die "Invalid size-limit: too small."
640 [ ${w} -lt 65536 ] && [ ${h} -lt 65536 ] \
641 || die "Invalid size-limit: too big."
642 enable_feature size_limit
650 --libc|--as|--prefix|--libdir)
651 die "Option ${opt} requires argument"
668 process_common_cmdline $opt
674 post_process_common_cmdline() {
675 prefix="${prefix:-/usr/local}"
677 libdir="${libdir:-${prefix}/lib}"
679 if [ "${libdir#${prefix}}" = "${libdir}" ]; then
680 die "Libdir ${libdir} must be a subdirectory of ${prefix}"
684 post_process_cmdline() {
688 setup_gnu_toolchain() {
689 CC=${CC:-${CROSS}gcc}
690 CXX=${CXX:-${CROSS}g++}
692 LD=${LD:-${CROSS}${link_with_cc:-ld}}
694 STRIP=${STRIP:-${CROSS}strip}
700 # Reliably find the newest available Darwin SDKs. (Older versions of
701 # xcrun don't support --show-sdk-path.)
702 show_darwin_sdk_path() {
703 xcrun --sdk $1 --show-sdk-path 2>/dev/null ||
704 xcodebuild -sdk $1 -version Path 2>/dev/null
707 # Print the major version number of the Darwin SDK specified by $1.
708 show_darwin_sdk_major_version() {
709 xcrun --sdk $1 --show-sdk-version 2>/dev/null | cut -d. -f1
712 # Print the Xcode version.
713 show_xcode_version() {
714 xcodebuild -version | head -n1 | cut -d' ' -f2
717 # Fails when Xcode version is less than 6.3.
718 check_xcode_minimum_version() {
719 xcode_major=$(show_xcode_version | cut -f1 -d.)
720 xcode_minor=$(show_xcode_version | cut -f2 -d.)
723 if [ ${xcode_major} -lt ${xcode_min_major} ]; then
726 if [ ${xcode_major} -eq ${xcode_min_major} ] \
727 && [ ${xcode_minor} -lt ${xcode_min_minor} ]; then
732 process_common_toolchain() {
733 if [ -z "$toolchain" ]; then
734 gcctarget="${CHOST:-$(gcc -dumpmachine 2> /dev/null)}"
740 armv7*-hardfloat* | armv7*-gnueabihf | arm-*-gnueabihf)
809 [ -z "$tgt_isa" ] && tgt_isa=x86
823 if [ -n "$tgt_isa" ] && [ -n "$tgt_os" ]; then
824 toolchain=${tgt_isa}-${tgt_os}-gcc
828 toolchain=${toolchain:-generic-gnu}
830 is_in ${toolchain} ${all_platforms} || enabled force_toolchain \
831 || die "Unrecognized toolchain '${toolchain}'"
833 enabled child || log_echo "Configuring for target '${toolchain}'"
836 # Set up toolchain variables
838 tgt_isa=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $1}')
839 tgt_os=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $2}')
840 tgt_cc=$(echo ${toolchain} | awk 'BEGIN{FS="-"}{print $3}')
842 # Mark the specific ISA requested as enabled
843 soft_enable ${tgt_isa}
844 enable_feature ${tgt_os}
845 enable_feature ${tgt_cc}
847 # Enable the architecture family
860 # PIC is probably what we want when building shared libs
861 enabled shared && soft_enable pic
863 # Minimum iOS version for all target platforms (darwin and iphonesimulator).
864 # Shared library framework builds are only possible on iOS 8 and later.
865 if enabled shared; then
866 IOS_VERSION_OPTIONS="--enable-shared"
867 IOS_VERSION_MIN="8.0"
869 IOS_VERSION_OPTIONS=""
870 IOS_VERSION_MIN="7.0"
873 # Handle darwin variants. Newer SDKs allow targeting older
874 # platforms, so use the newest one available.
877 add_cflags "-miphoneos-version-min=${IOS_VERSION_MIN}"
878 iphoneos_sdk_dir="$(show_darwin_sdk_path iphoneos)"
879 if [ -d "${iphoneos_sdk_dir}" ]; then
880 add_cflags "-isysroot ${iphoneos_sdk_dir}"
881 add_ldflags "-isysroot ${iphoneos_sdk_dir}"
885 osx_sdk_dir="$(show_darwin_sdk_path macosx)"
886 if [ -d "${osx_sdk_dir}" ]; then
887 add_cflags "-isysroot ${osx_sdk_dir}"
888 add_ldflags "-isysroot ${osx_sdk_dir}"
895 add_cflags "-mmacosx-version-min=10.4"
896 add_ldflags "-mmacosx-version-min=10.4"
899 add_cflags "-mmacosx-version-min=10.5"
900 add_ldflags "-mmacosx-version-min=10.5"
903 add_cflags "-mmacosx-version-min=10.6"
904 add_ldflags "-mmacosx-version-min=10.6"
907 add_cflags "-mmacosx-version-min=10.7"
908 add_ldflags "-mmacosx-version-min=10.7"
911 add_cflags "-mmacosx-version-min=10.8"
912 add_ldflags "-mmacosx-version-min=10.8"
915 add_cflags "-mmacosx-version-min=10.9"
916 add_ldflags "-mmacosx-version-min=10.9"
919 add_cflags "-mmacosx-version-min=10.10"
920 add_ldflags "-mmacosx-version-min=10.10"
923 add_cflags "-mmacosx-version-min=10.11"
924 add_ldflags "-mmacosx-version-min=10.11"
927 add_cflags "-mmacosx-version-min=10.12"
928 add_ldflags "-mmacosx-version-min=10.12"
931 add_cflags "-mmacosx-version-min=10.13"
932 add_ldflags "-mmacosx-version-min=10.13"
935 add_cflags "-miphoneos-version-min=${IOS_VERSION_MIN}"
936 add_ldflags "-miphoneos-version-min=${IOS_VERSION_MIN}"
937 iossim_sdk_dir="$(show_darwin_sdk_path iphonesimulator)"
938 if [ -d "${iossim_sdk_dir}" ]; then
939 add_cflags "-isysroot ${iossim_sdk_dir}"
940 add_ldflags "-isysroot ${iossim_sdk_dir}"
945 # Handle Solaris variants. Solaris 10 needs -lposix4
948 add_extralibs -lposix4
951 add_extralibs -lposix4
955 # Process ARM architecture variants
958 # on arm, isa versions are supersets
965 # Only enable neon_asm when neon is also enabled.
966 enabled neon && soft_enable neon_asm
967 # If someone tries to force it through, die.
968 if disabled neon && enabled neon_asm; then
969 die "Disabling neon while keeping neon-asm is not supported"
974 asm_conversion_cmd="cat"
980 arch_int=${tgt_isa##armv}
981 arch_int=${arch_int%%te}
982 tune_cflags="-mtune="
983 if [ ${tgt_isa} = "armv7" ] || [ ${tgt_isa} = "armv7s" ]; then
984 if [ -z "${float_abi}" ]; then
985 check_cpp <<EOF && float_abi=hard || float_abi=softfp
986 #ifndef __ARM_PCS_VFP
991 check_add_cflags -march=armv7-a -mfloat-abi=${float_abi}
992 check_add_asflags -march=armv7-a -mfloat-abi=${float_abi}
994 if enabled neon || enabled neon_asm; then
995 check_add_cflags -mfpu=neon #-ftree-vectorize
996 check_add_asflags -mfpu=neon
998 elif [ ${tgt_isa} = "arm64" ] || [ ${tgt_isa} = "armv8" ]; then
999 check_add_cflags -march=armv8-a
1000 check_add_asflags -march=armv8-a
1002 check_add_cflags -march=${tgt_isa}
1003 check_add_asflags -march=${tgt_isa}
1006 enabled debug && add_asflags -g
1007 asm_conversion_cmd="${source_path}/build/make/ads2gas.pl"
1011 asm_conversion_cmd="$asm_conversion_cmd -noelf"
1014 enable_feature thumb
1018 if enabled thumb; then
1019 asm_conversion_cmd="$asm_conversion_cmd -thumb"
1020 check_add_cflags -mthumb
1021 check_add_asflags -mthumb -mimplicit-it=always
1025 # A number of ARM-based Windows platforms are constrained by their
1026 # respective SDKs' limitations. Fortunately, these are all 32-bit ABIs
1027 # and so can be selected as 'win32'.
1028 if [ ${tgt_os} = "win32" ]; then
1029 asm_conversion_cmd="${source_path}/build/make/ads2armasm_ms.pl"
1031 msvs_arch_dir=arm-msvs
1032 disable_feature multithread
1033 disable_feature unit_tests
1034 if [ ${tgt_cc##vs} -ge 12 ]; then
1035 # MSVC 2013 doesn't allow doing plain .exe projects for ARM32,
1036 # only "AppContainerApplication" which requires an AppxManifest.
1037 # Therefore disable the examples, just build the library.
1038 disable_feature examples
1039 disable_feature tools
1042 # Windows 10 on ARM, on the other hand, has full Windows SDK support
1043 # for building Win32 ARM64 applications in addition to ARM64
1044 # Windows Store apps. It is the only 64-bit ARM ABI that
1045 # Windows supports, so it is the default definition of 'win64'.
1046 # ARM64 build support officially shipped in Visual Studio 15.9.0.
1048 # Because the ARM64 Windows SDK's arm_neon.h is ARM32-specific
1049 # while LLVM's is not, probe its validity.
1050 if enabled neon; then
1051 if [ -n "${CC}" ]; then
1052 check_header arm_neon.h || check_header arm64_neon.h && \
1053 enable_feature win_arm64_neon_h_workaround
1055 # If a probe is not possible, assume this is the pure Windows
1056 # SDK and so the workaround is necessary.
1057 enable_feature win_arm64_neon_h_workaround
1066 LD="${source_path}/build/make/armlink_adapter.sh"
1067 STRIP=arm-none-linux-gnueabi-strip
1068 NM=arm-none-linux-gnueabi-nm
1069 tune_cflags="--cpu="
1070 tune_asflags="--cpu="
1071 if [ -z "${tune_cpu}" ]; then
1072 if [ ${tgt_isa} = "armv7" ]; then
1073 if enabled neon || enabled neon_asm
1075 check_add_cflags --fpu=softvfp+vfpv3
1076 check_add_asflags --fpu=softvfp+vfpv3
1078 check_add_cflags --cpu=Cortex-A8
1079 check_add_asflags --cpu=Cortex-A8
1081 check_add_cflags --cpu=${tgt_isa##armv}
1082 check_add_asflags --cpu=${tgt_isa##armv}
1085 arch_int=${tgt_isa##armv}
1086 arch_int=${arch_int%%te}
1087 enabled debug && add_asflags -g
1089 add_cflags --enum_is_int
1090 add_cflags --wchar32
1096 disable_feature multithread
1097 disable_feature os_support
1101 echo "Assuming standalone build with NDK toolchain."
1102 echo "See build/make/Android.mk for details."
1103 check_add_ldflags -static
1104 soft_enable unit_tests
1108 XCRUN_FIND="xcrun --sdk iphoneos --find"
1109 CXX="$(${XCRUN_FIND} clang++)"
1110 CC="$(${XCRUN_FIND} clang)"
1111 AR="$(${XCRUN_FIND} ar)"
1112 AS="$(${XCRUN_FIND} as)"
1113 STRIP="$(${XCRUN_FIND} strip)"
1114 NM="$(${XCRUN_FIND} nm)"
1115 RANLIB="$(${XCRUN_FIND} ranlib)"
1117 LD="${CXX:-$(${XCRUN_FIND} ld)}"
1119 # ASFLAGS is written here instead of using check_add_asflags
1120 # because we need to overwrite all of ASFLAGS and purge the
1121 # options that were put in above
1122 ASFLAGS="-arch ${tgt_isa} -g"
1124 add_cflags -arch ${tgt_isa}
1125 add_ldflags -arch ${tgt_isa}
1127 alt_libc="$(show_darwin_sdk_path iphoneos)"
1128 if [ -d "${alt_libc}" ]; then
1129 add_cflags -isysroot ${alt_libc}
1132 if [ "${LD}" = "${CXX}" ]; then
1133 add_ldflags -miphoneos-version-min="${IOS_VERSION_MIN}"
1135 add_ldflags -ios_version_min "${IOS_VERSION_MIN}"
1138 for d in lib usr/lib usr/lib/system; do
1139 try_dir="${alt_libc}/${d}"
1140 [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
1144 armv7|armv7s|armv8|arm64)
1145 if enabled neon && ! check_xcode_minimum_version; then
1147 log_echo " neon disabled: upgrade Xcode (need v6.3+)."
1148 if enabled neon_asm; then
1149 soft_disable neon_asm
1150 log_echo " neon_asm disabled: upgrade Xcode (need v6.3+)."
1156 asm_conversion_cmd="${source_path}/build/make/ads2gas_apple.pl"
1158 if [ "$(show_darwin_sdk_major_version iphoneos)" -gt 8 ]; then
1159 check_add_cflags -fembed-bitcode
1160 check_add_asflags -fembed-bitcode
1161 check_add_ldflags -fembed-bitcode
1166 enable_feature linux
1167 if enabled rvct; then
1168 # Check if we have CodeSourcery GCC in PATH. Needed for
1170 which arm-none-linux-gnueabi-gcc 2>&- || \
1171 die "Couldn't find CodeSourcery GCC from PATH"
1173 # Use armcc as a linker to enable translation of
1174 # some gcc specific options such as -lm and -lpthread.
1175 LD="armcc --translate_gcc"
1177 # create configuration file (uses path to CodeSourcery GCC)
1178 armcc --arm_linux_configure --arm_linux_config_file=arm_linux.cfg
1180 add_cflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
1181 add_asflags --no_hide_all --apcs=/interwork
1182 add_ldflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
1183 enabled pic && add_cflags --apcs=/fpic
1184 enabled pic && add_asflags --apcs=/fpic
1185 enabled shared && add_cflags --shared
1193 tune_cflags="-mtune="
1194 if enabled dspr2; then
1195 check_add_cflags -mips32r2 -mdspr2
1198 if enabled runtime_cpu_detect; then
1199 disable_feature runtime_cpu_detect
1202 if [ -n "${tune_cpu}" ]; then
1205 check_add_cflags -mips32r5 -mload-store-pairs
1206 check_add_cflags -msched-weight -mhard-float -mfp64
1207 check_add_asflags -mips32r5 -mhard-float -mfp64
1208 check_add_ldflags -mfp64
1211 check_add_cflags -mips64r6 -mabi=64 -msched-weight
1212 check_add_cflags -mload-store-pairs -mhard-float -mfp64
1213 check_add_asflags -mips64r6 -mabi=64 -mhard-float -mfp64
1214 check_add_ldflags -mips64r6 -mabi=64 -mfp64
1218 if enabled msa; then
1220 # The new mips functions in libyuv do not build
1221 # with the toolchains we currently use for testing.
1230 if enabled mmi; then
1232 check_add_ldflags -march=loongson3a
1235 check_add_cflags -march=${tgt_isa}
1236 check_add_asflags -march=${tgt_isa}
1237 check_add_asflags -KPIC
1242 # Do not enable vsx by default.
1243 # https://bugs.chromium.org/p/webm/issues/detail?id=1522
1244 enabled vsx || RTCD_OPTIONS="${RTCD_OPTIONS}--disable-vsx "
1245 if [ -n "${tune_cpu}" ]; then
1248 tune_cflags="-mcpu="
1256 soft_enable realtime_only
1259 enabled gcc && add_cflags -fno-common
1262 CC=${CC:-${CROSS}gcc}
1263 CXX=${CXX:-${CROSS}g++}
1264 LD=${LD:-${CROSS}gcc}
1270 add_ldflags -Zhigh-mem
1274 AS="${alt_as:-${AS:-auto}}"
1280 add_cflags -use-msasm # remove -use-msasm too?
1281 # add -no-intel-extensions to suppress warning #10237
1282 # refer to http://software.intel.com/en-us/forums/topic/280199
1283 add_ldflags -i-static -no-intel-extensions
1284 enabled x86_64 && add_cflags -ipo -static -O3 -no-prec-div
1285 enabled x86_64 && AR=xiar
1289 tune_cpu="SSE3_ATOM"
1292 tune_cflags="-march="
1298 tune_cflags="-march="
1300 #for 32 bit x86 builds, -O3 did not turn on this flag
1301 enabled optimizations && disabled gprof && check_add_cflags -fomit-frame-pointer
1304 # When building with Microsoft Visual Studio the assembler is
1305 # invoked directly. Checking at configure time is unnecessary.
1306 # Skip the check by setting AS arbitrarily
1308 msvs_arch_dir=x86-msvs
1309 case ${tgt_cc##vs} in
1311 echo "${tgt_cc} does not support avx512, disabling....."
1312 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx512 "
1320 enabled x86_64 && bits=64
1321 check_cpp <<EOF && bits=x32
1322 #if !defined(__ILP32__) || !defined(__x86_64__)
1328 add_cflags -m${bits}
1329 add_ldflags -m${bits}
1333 soft_enable runtime_cpu_detect
1334 # We can't use 'check_cflags' until the compiler is configured and CC is
1336 for ext in ${ARCH_EXT_LIST_X86}; do
1337 # disable higher order extensions to simplify asm dependencies
1338 if [ "$disable_exts" = "yes" ]; then
1339 if ! disabled $ext; then
1340 RTCD_OPTIONS="${RTCD_OPTIONS}--disable-${ext} "
1341 disable_feature $ext
1343 elif disabled $ext; then
1346 if [ "$ext" = "avx512" ]; then
1347 check_gcc_machine_options $ext avx512f avx512cd avx512bw avx512dq avx512vl
1348 check_gcc_avx512_compiles
1350 # use the shortened version for the flag: sse4_1 -> sse4
1351 check_gcc_machine_option ${ext%_*} $ext
1356 if enabled external_build; then
1357 log_echo " skipping assembler detection"
1361 which nasm >/dev/null 2>&1 && AS=nasm
1362 which yasm >/dev/null 2>&1 && AS=yasm
1363 if [ "${AS}" = nasm ] ; then
1364 # Apple ships version 0.98 of nasm through at least Xcode 6. Revisit
1365 # this check if they start shipping a compatible version.
1366 apple=`nasm -v | grep "Apple"`
1368 && echo "Unsupported version of nasm: ${apple}" \
1371 [ "${AS}" = auto ] || [ -z "${AS}" ] \
1372 && die "Neither yasm nor nasm have been found." \
1373 "See the prerequisites section in the README for more info."
1376 log_echo " using $AS"
1381 add_asflags -f win32
1382 enabled debug && add_asflags -g cv8
1386 add_asflags -f win64
1387 enabled debug && add_asflags -g cv8
1390 linux*|solaris*|android*)
1391 add_asflags -f elf${bits}
1392 enabled debug && [ "${AS}" = yasm ] && add_asflags -g dwarf2
1393 enabled debug && [ "${AS}" = nasm ] && add_asflags -g
1394 [ "${AS##*/}" = nasm ] && check_asm_align
1397 add_asflags -f macho${bits}
1398 enabled x86 && darwin_arch="-arch i386" || darwin_arch="-arch x86_64"
1399 add_cflags ${darwin_arch}
1400 add_ldflags ${darwin_arch}
1401 # -mdynamic-no-pic is still a bit of voodoo -- it was required at
1402 # one time, but does not seem to be now, and it breaks some of the
1403 # code that still relies on inline assembly.
1404 # enabled icc && ! enabled pic && add_cflags -fno-pic -mdynamic-no-pic
1405 enabled icc && ! enabled pic && add_cflags -fno-pic
1408 add_asflags -f macho${bits}
1409 enabled x86 && sim_arch="-arch i386" || sim_arch="-arch x86_64"
1410 add_cflags ${sim_arch}
1411 add_ldflags ${sim_arch}
1413 if [ "$(disabled external_build)" ] &&
1414 [ "$(show_darwin_sdk_major_version iphonesimulator)" -gt 8 ]; then
1415 # yasm v1.3.0 doesn't know what -fembed-bitcode means, so turning it
1416 # on is pointless (unless building a C-only lib). Warn the user, but
1418 log "Warning: Bitcode embed disabled for simulator targets."
1423 enabled debug && add_asflags -g
1427 log "Warning: Unknown os $tgt_os while setting up $AS flags"
1438 # Try to enable CPU specific tuning
1439 if [ -n "${tune_cpu}" ]; then
1440 if [ -n "${tune_cflags}" ]; then
1441 check_add_cflags ${tune_cflags}${tune_cpu} || \
1442 die "Requested CPU '${tune_cpu}' not supported by compiler"
1444 if [ -n "${tune_asflags}" ]; then
1445 check_add_asflags ${tune_asflags}${tune_cpu} || \
1446 die "Requested CPU '${tune_cpu}' not supported by assembler"
1448 if [ -z "${tune_cflags}${tune_asflags}" ]; then
1449 log_echo "Warning: CPU tuning not supported by this toolchain"
1453 if enabled debug; then
1454 check_add_cflags -g && check_add_ldflags -g
1456 check_add_cflags -DNDEBUG
1459 enabled gprof && check_add_cflags -pg && check_add_ldflags -pg
1461 check_add_cflags -fprofile-arcs -ftest-coverage &&
1462 check_add_ldflags -fprofile-arcs -ftest-coverage
1464 if enabled optimizations; then
1465 if enabled rvct; then
1466 enabled small && check_add_cflags -Ospace || check_add_cflags -Otime
1468 enabled small && check_add_cflags -O2 || check_add_cflags -O3
1472 # Position Independent Code (PIC) support, for building relocatable
1474 enabled gcc && enabled pic && check_add_cflags -fPIC
1476 # Work around longjmp interception on glibc >= 2.11, to improve binary
1477 # compatibility. See http://code.google.com/p/webm/issues/detail?id=166
1478 enabled linux && check_add_cflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
1480 # Check for strip utility variant
1481 ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable_feature gnu_strip
1483 # Try to determine target endianness
1485 unsigned int e = 'O'<<24 | '2'<<16 | 'B'<<8 | 'E';
1487 [ -f "${TMP_O}" ] && od -A n -t x1 "${TMP_O}" | tr -d '\n' |
1488 grep '4f *32 *42 *45' >/dev/null 2>&1 && enable_feature big_endian
1490 # Try to find which inline keywords are supported
1491 check_cc <<EOF && INLINE="inline"
1492 static inline function() {}
1495 # Almost every platform uses pthreads.
1496 if enabled multithread; then
1497 case ${toolchain} in
1501 # bionic includes basic pthread functionality, obviating -lpthread.
1504 check_header pthread.h && check_lib -lpthread <<EOF && add_extralibs -lpthread || disable_feature pthread_h
1505 #include <pthread.h>
1507 int main(void) { return pthread_create(NULL, NULL, NULL, NULL); }
1513 # only for MIPS platforms
1514 case ${toolchain} in
1516 if enabled big_endian; then
1517 if enabled dspr2; then
1518 echo "dspr2 optimizations are available only for little endian platforms"
1519 disable_feature dspr2
1521 if enabled msa; then
1522 echo "msa optimizations are available only for little endian platforms"
1525 if enabled mmi; then
1526 echo "mmi optimizations are available only for little endian platforms"
1534 if enabled linux; then
1535 add_cflags -D_LARGEFILE_SOURCE
1536 add_cflags -D_FILE_OFFSET_BITS=64
1540 process_toolchain() {
1541 process_common_toolchain
1545 saved_prefix="${prefix}"
1550 if enabled $cfg; then
1551 upname="`toupper $cfg`"
1552 echo "${prefix}_${upname}=yes" >> $makefile
1555 prefix="${saved_prefix}"
1559 saved_prefix="${prefix}"
1564 upname="`toupper $cfg`"
1565 if enabled $cfg; then
1566 echo "#define ${prefix}_${upname} 1" >> $header
1568 echo "#define ${prefix}_${upname} 0" >> $header
1571 prefix="${saved_prefix}"
1574 print_config_vars_h() {
1577 while [ $# -gt 0 ]; do
1578 upname="`toupper $1`"
1579 echo "#define ${upname} $2" >> $header
1584 print_webm_license() {
1585 saved_prefix="${prefix}"
1590 cat <<EOF > ${destination}
1591 ${prefix} Copyright (c) 2011 The WebM project authors. All Rights Reserved.${suffix}
1593 ${prefix} Use of this source code is governed by a BSD-style license${suffix}
1594 ${prefix} that can be found in the LICENSE file in the root of the source${suffix}
1595 ${prefix} tree. An additional intellectual property rights grant can be found${suffix}
1596 ${prefix} in the file PATENTS. All contributing project authors may${suffix}
1597 ${prefix} be found in the AUTHORS file in the root of the source tree.${suffix}
1599 prefix="${saved_prefix}"
1610 enable_feature logging
1611 logfile="config.log"
1615 process_cmdline "$@"
1616 if enabled child; then
1617 echo "# ${self} $@" >> ${logfile}
1619 echo "# ${self} $@" > ${logfile}
1621 post_process_common_cmdline
1622 post_process_cmdline
1627 OOT_INSTALLS="${OOT_INSTALLS}"
1628 if enabled source_path_used; then
1629 # Prepare the PWD for building.
1630 for f in ${OOT_INSTALLS}; do
1631 install -D "${source_path}/$f" "$f"
1634 cp "${source_path}/build/make/Makefile" .