]> granicus.if.org Git - libvpx/blob - configure
Merge "Fix to avoid abrupt relaxation of max qindex in recode path"
[libvpx] / configure
1 #!/bin/sh
2 ##
3 ##  configure
4 ##
5 ##  This script is the front-end to the build system. It provides a similar
6 ##  interface to standard configure scripts with some extra bits for dealing
7 ##  with toolchains that differ from the standard POSIX interface and
8 ##  for extracting subsets of the source tree. In theory, reusable parts
9 ##  of this script were intended to live in build/make/configure.sh,
10 ##  but in practice, the line is pretty blurry.
11 ##
12 ##  This build system is based in part on the FFmpeg configure script.
13 ##
14
15 #source_path="`dirname \"$0\"`"
16 source_path=${0%/*}
17 . "${source_path}/build/make/configure.sh"
18
19 show_help(){
20     show_help_pre
21     cat << EOF
22 Advanced options:
23   ${toggle_libs}                  libraries
24   ${toggle_examples}              examples
25   ${toggle_tools}                 tools
26   ${toggle_docs}                  documentation
27   ${toggle_unit_tests}            unit tests
28   ${toggle_decode_perf_tests}     build decoder perf tests with unit tests
29   ${toggle_encode_perf_tests}     build encoder perf tests with unit tests
30   --cpu=CPU                       tune for the specified CPU (ARM: cortex-a8, X86: sse3)
31   --libc=PATH                     path to alternate libc
32   --size-limit=WxH                max size to allow in the decoder
33   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
34   --sdk-path=PATH                 path to root of sdk (android builds only)
35   ${toggle_codec_srcs}            in/exclude codec library source code
36   ${toggle_debug_libs}            in/exclude debug version of libraries
37   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
38   ${toggle_vp9_highbitdepth}      use VP9 high bit depth (10/12) profiles
39   ${toggle_better_hw_compatibility}
40                                   enable encoder to produce streams with better
41                                   hardware decoder compatibility
42   ${toggle_vp8}                   VP8 codec support
43   ${toggle_vp9}                   VP9 codec support
44   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
45   ${toggle_postproc}              postprocessing
46   ${toggle_vp9_postproc}          vp9 specific postprocessing
47   ${toggle_multithread}           multithreaded encoding and decoding
48   ${toggle_spatial_resampling}    spatial sampling (scaling) support
49   ${toggle_realtime_only}         enable this option while building for real-time encoding
50   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
51   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
52   ${toggle_coefficient_range_checking}
53                                   enable decoder to check if intermediate
54                                   transform coefficients are in valid range
55   ${toggle_runtime_cpu_detect}    runtime cpu detection
56   ${toggle_shared}                shared library support
57   ${toggle_static}                static library support
58   ${toggle_small}                 favor smaller size over speed
59   ${toggle_postproc_visualizer}   macro block / block level visualizers
60   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
61   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
62   ${toggle_vp9_temporal_denoising}
63                                   enable vp9 temporal denoising
64   ${toggle_webm_io}               enable input from and output to WebM container
65   ${toggle_libyuv}                enable libyuv
66
67 Codecs:
68   Codecs can be selectively enabled or disabled individually, or by family:
69       --disable-<codec>
70   is equivalent to:
71       --disable-<codec>-encoder
72       --disable-<codec>-decoder
73
74   Codecs available in this distribution:
75 EOF
76 #restore editor state '
77
78     family="";
79     last_family="";
80     c="";
81     str="";
82     for c in ${CODECS}; do
83         family=${c%_*}
84         if [ "${family}" != "${last_family}" ]; then
85             [ -z "${str}" ] || echo "${str}"
86             str="$(printf '    %10s:' ${family})"
87         fi
88         str="${str} $(printf '%10s' ${c#*_})"
89         last_family=${family}
90     done
91     echo "${str}"
92     show_help_post
93 }
94
95 ##
96 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
97 ##
98
99 # all_platforms is a list of all supported target platforms. Maintain
100 # alphabetically by architecture, generic-gnu last.
101 all_platforms="${all_platforms} arm64-android-gcc"
102 all_platforms="${all_platforms} arm64-darwin-gcc"
103 all_platforms="${all_platforms} arm64-linux-gcc"
104 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
105 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
106 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
107 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
108 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
109 all_platforms="${all_platforms} armv7-win32-vs11"
110 all_platforms="${all_platforms} armv7-win32-vs12"
111 all_platforms="${all_platforms} armv7-win32-vs14"
112 all_platforms="${all_platforms} armv7s-darwin-gcc"
113 all_platforms="${all_platforms} armv8-linux-gcc"
114 all_platforms="${all_platforms} mips32-linux-gcc"
115 all_platforms="${all_platforms} mips64-linux-gcc"
116 all_platforms="${all_platforms} sparc-solaris-gcc"
117 all_platforms="${all_platforms} x86-android-gcc"
118 all_platforms="${all_platforms} x86-darwin8-gcc"
119 all_platforms="${all_platforms} x86-darwin8-icc"
120 all_platforms="${all_platforms} x86-darwin9-gcc"
121 all_platforms="${all_platforms} x86-darwin9-icc"
122 all_platforms="${all_platforms} x86-darwin10-gcc"
123 all_platforms="${all_platforms} x86-darwin11-gcc"
124 all_platforms="${all_platforms} x86-darwin12-gcc"
125 all_platforms="${all_platforms} x86-darwin13-gcc"
126 all_platforms="${all_platforms} x86-darwin14-gcc"
127 all_platforms="${all_platforms} x86-darwin15-gcc"
128 all_platforms="${all_platforms} x86-darwin16-gcc"
129 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
130 all_platforms="${all_platforms} x86-linux-gcc"
131 all_platforms="${all_platforms} x86-linux-icc"
132 all_platforms="${all_platforms} x86-os2-gcc"
133 all_platforms="${all_platforms} x86-solaris-gcc"
134 all_platforms="${all_platforms} x86-win32-gcc"
135 all_platforms="${all_platforms} x86-win32-vs10"
136 all_platforms="${all_platforms} x86-win32-vs11"
137 all_platforms="${all_platforms} x86-win32-vs12"
138 all_platforms="${all_platforms} x86-win32-vs14"
139 all_platforms="${all_platforms} x86_64-android-gcc"
140 all_platforms="${all_platforms} x86_64-darwin9-gcc"
141 all_platforms="${all_platforms} x86_64-darwin10-gcc"
142 all_platforms="${all_platforms} x86_64-darwin11-gcc"
143 all_platforms="${all_platforms} x86_64-darwin12-gcc"
144 all_platforms="${all_platforms} x86_64-darwin13-gcc"
145 all_platforms="${all_platforms} x86_64-darwin14-gcc"
146 all_platforms="${all_platforms} x86_64-darwin15-gcc"
147 all_platforms="${all_platforms} x86_64-darwin16-gcc"
148 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
149 all_platforms="${all_platforms} x86_64-linux-gcc"
150 all_platforms="${all_platforms} x86_64-linux-icc"
151 all_platforms="${all_platforms} x86_64-solaris-gcc"
152 all_platforms="${all_platforms} x86_64-win64-gcc"
153 all_platforms="${all_platforms} x86_64-win64-vs10"
154 all_platforms="${all_platforms} x86_64-win64-vs11"
155 all_platforms="${all_platforms} x86_64-win64-vs12"
156 all_platforms="${all_platforms} x86_64-win64-vs14"
157 all_platforms="${all_platforms} generic-gnu"
158
159 # all_targets is a list of all targets that can be configured
160 # note that these should be in dependency order for now.
161 all_targets="libs examples tools docs"
162
163 # all targets available are enabled, by default.
164 for t in ${all_targets}; do
165     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
166 done
167
168 if ! perl --version >/dev/null; then
169     die "Perl is required to build"
170 fi
171
172
173 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
174   # test to see if source_path already configured
175   if [ -f "${source_path}/vpx_config.h" ]; then
176     die "source directory already configured; run 'make distclean' there first"
177   fi
178 fi
179
180 # check installed doxygen version
181 doxy_version=$(doxygen --version 2>/dev/null)
182 doxy_major=${doxy_version%%.*}
183 if [ ${doxy_major:-0} -ge 1 ]; then
184     doxy_version=${doxy_version#*.}
185     doxy_minor=${doxy_version%%.*}
186     doxy_patch=${doxy_version##*.}
187
188     [ $doxy_major -gt 1 ] && enable_feature doxygen
189     [ $doxy_minor -gt 5 ] && enable_feature doxygen
190     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
191 fi
192
193 # disable codecs when their source directory does not exist
194 [ -d "${source_path}/vp8" ] || disable_codec vp8
195 [ -d "${source_path}/vp9" ] || disable_codec vp9
196
197 # install everything except the sources, by default. sources will have
198 # to be enabled when doing dist builds, since that's no longer a common
199 # case.
200 enabled doxygen && enable_feature install_docs
201 enable_feature install_bins
202 enable_feature install_libs
203
204 enable_feature static
205 enable_feature optimizations
206 enable_feature dependency_tracking
207 enable_feature spatial_resampling
208 enable_feature multithread
209 enable_feature os_support
210 enable_feature temporal_denoising
211
212 CODECS="
213     vp8_encoder
214     vp8_decoder
215     vp9_encoder
216     vp9_decoder
217 "
218 CODEC_FAMILIES="
219     vp8
220     vp9
221 "
222
223 ARCH_LIST="
224     arm
225     mips
226     x86
227     x86_64
228 "
229 ARCH_EXT_LIST_X86="
230     mmx
231     sse
232     sse2
233     sse3
234     ssse3
235     sse4_1
236     avx
237     avx2
238 "
239 ARCH_EXT_LIST="
240     neon
241     neon_asm
242
243     mips32
244     dspr2
245     msa
246     mips64
247
248     ${ARCH_EXT_LIST_X86}
249 "
250 HAVE_LIST="
251     ${ARCH_EXT_LIST}
252     vpx_ports
253     pthread_h
254     unistd_h
255 "
256 EXPERIMENT_LIST="
257     spatial_svc
258     fp_mb_stats
259     emulate_hardware
260     misc_fixes
261 "
262 CONFIG_LIST="
263     dependency_tracking
264     external_build
265     install_docs
266     install_bins
267     install_libs
268     install_srcs
269     debug
270     gprof
271     gcov
272     rvct
273     gcc
274     msvs
275     pic
276     big_endian
277
278     codec_srcs
279     debug_libs
280
281     dequant_tokens
282     dc_recon
283     runtime_cpu_detect
284     postproc
285     vp9_postproc
286     multithread
287     internal_stats
288     ${CODECS}
289     ${CODEC_FAMILIES}
290     encoders
291     decoders
292     static_msvcrt
293     spatial_resampling
294     realtime_only
295     onthefly_bitpacking
296     error_concealment
297     shared
298     static
299     small
300     postproc_visualizer
301     os_support
302     unit_tests
303     webm_io
304     libyuv
305     decode_perf_tests
306     encode_perf_tests
307     multi_res_encoding
308     temporal_denoising
309     vp9_temporal_denoising
310     coefficient_range_checking
311     vp9_highbitdepth
312     better_hw_compatibility
313     experimental
314     size_limit
315     ${EXPERIMENT_LIST}
316 "
317 CMDLINE_SELECT="
318     dependency_tracking
319     external_build
320     extra_warnings
321     werror
322     install_docs
323     install_bins
324     install_libs
325     install_srcs
326     debug
327     gprof
328     gcov
329     pic
330     optimizations
331     ccache
332     runtime_cpu_detect
333     thumb
334
335     libs
336     examples
337     tools
338     docs
339     libc
340     as
341     size_limit
342     codec_srcs
343     debug_libs
344
345     dequant_tokens
346     dc_recon
347     postproc
348     vp9_postproc
349     multithread
350     internal_stats
351     ${CODECS}
352     ${CODEC_FAMILIES}
353     static_msvcrt
354     spatial_resampling
355     realtime_only
356     onthefly_bitpacking
357     error_concealment
358     shared
359     static
360     small
361     postproc_visualizer
362     unit_tests
363     webm_io
364     libyuv
365     decode_perf_tests
366     encode_perf_tests
367     multi_res_encoding
368     temporal_denoising
369     vp9_temporal_denoising
370     coefficient_range_checking
371     better_hw_compatibility
372     vp9_highbitdepth
373     experimental
374 "
375
376 process_cmdline() {
377     for opt do
378         optval="${opt#*=}"
379         case "$opt" in
380         --disable-codecs)
381           for c in ${CODEC_FAMILIES}; do disable_codec $c; done
382           ;;
383         --enable-?*|--disable-?*)
384         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
385         if is_in ${option} ${EXPERIMENT_LIST}; then
386             if enabled experimental; then
387                 ${action}_feature $option
388             else
389                 log_echo "Ignoring $opt -- not in experimental mode."
390             fi
391         elif is_in ${option} "${CODECS} ${CODEC_FAMILIES}"; then
392             ${action}_codec ${option}
393         else
394             process_common_cmdline $opt
395         fi
396         ;;
397         *) process_common_cmdline "$opt"
398         ;;
399         esac
400     done
401 }
402
403 post_process_cmdline() {
404     c=""
405
406     # Enable all detected codecs, if they haven't been disabled
407     for c in ${CODECS}; do soft_enable $c; done
408
409     # Enable the codec family if any component of that family is enabled
410     for c in ${CODECS}; do
411         enabled $c && enable_feature ${c%_*}
412     done
413
414     # Set the {en,de}coders variable if any algorithm in that class is enabled
415     for c in ${CODECS}; do
416         enabled ${c} && enable_feature ${c##*_}s
417     done
418 }
419
420
421 process_targets() {
422     enabled child || write_common_config_banner
423     write_common_target_config_h ${BUILD_PFX}vpx_config.h
424     write_common_config_targets
425
426     # Calculate the default distribution name, based on the enabled features
427     cf=""
428     DIST_DIR=vpx
429     for cf in $CODEC_FAMILIES; do
430         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
431             DIST_DIR="${DIST_DIR}-${cf}"
432         elif enabled ${cf}_encoder; then
433             DIST_DIR="${DIST_DIR}-${cf}cx"
434         elif enabled ${cf}_decoder; then
435             DIST_DIR="${DIST_DIR}-${cf}dx"
436         fi
437     done
438     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
439     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
440     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
441     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
442     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
443     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
444     case "${tgt_os}" in
445     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
446           DIST_DIR="${DIST_DIR}-${tgt_cc}"
447           ;;
448     esac
449     if [ -f "${source_path}/build/make/version.sh" ]; then
450         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
451         DIST_DIR="${DIST_DIR}-${ver}"
452         VERSION_STRING=${ver}
453         ver=${ver%%-*}
454         VERSION_PATCH=${ver##*.}
455         ver=${ver%.*}
456         VERSION_MINOR=${ver##*.}
457         ver=${ver#v}
458         VERSION_MAJOR=${ver%.*}
459     fi
460     enabled child || cat <<EOF >> config.mk
461
462 PREFIX=${prefix}
463 ifeq (\$(MAKECMDGOALS),dist)
464 DIST_DIR?=${DIST_DIR}
465 else
466 DIST_DIR?=\$(DESTDIR)${prefix}
467 endif
468 LIBSUBDIR=${libdir##${prefix}/}
469
470 VERSION_STRING=${VERSION_STRING}
471
472 VERSION_MAJOR=${VERSION_MAJOR}
473 VERSION_MINOR=${VERSION_MINOR}
474 VERSION_PATCH=${VERSION_PATCH}
475
476 CONFIGURE_ARGS=${CONFIGURE_ARGS}
477 EOF
478     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
479
480     #
481     # Write makefiles for all enabled targets
482     #
483     for tgt in libs examples tools docs solution; do
484         tgt_fn="$tgt-$toolchain.mk"
485
486         if enabled $tgt; then
487             echo "Creating makefiles for ${toolchain} ${tgt}"
488             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
489             #write_${tgt}_config
490         fi
491     done
492
493 }
494
495 process_detect() {
496     if enabled shared; then
497         # Can only build shared libs on a subset of platforms. Doing this check
498         # here rather than at option parse time because the target auto-detect
499         # magic happens after the command line has been parsed.
500         case "${tgt_os}" in
501         linux|os2|darwin*|iphonesimulator*)
502             # Supported platforms
503             ;;
504         *)
505             if enabled gnu; then
506                 echo "--enable-shared is only supported on ELF; assuming this is OK"
507             else
508                 die "--enable-shared only supported on ELF, OS/2, and Darwin for now"
509             fi
510             ;;
511         esac
512     fi
513     if [ -z "$CC" ] || enabled external_build; then
514         echo "Bypassing toolchain for environment detection."
515         enable_feature external_build
516         check_header() {
517             log fake_check_header "$@"
518             header=$1
519             shift
520             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
521             disable_feature $var
522             # Headers common to all environments
523             case $header in
524                 stdio.h)
525                     true;
526                 ;;
527                 *)
528                     result=false
529                     for d in "$@"; do
530                         [ -f "${d##-I}/$header" ] && result=true && break
531                     done
532                     ${result:-true}
533             esac && enable_feature $var
534
535             # Specialize windows and POSIX environments.
536             case $toolchain in
537                 *-win*-*)
538                     # Don't check for any headers in Windows builds.
539                     false
540                 ;;
541                 *)
542                     case $header in
543                         pthread.h) true;;
544                         unistd.h) true;;
545                         *) false;;
546                     esac && enable_feature $var
547             esac
548             enabled $var
549         }
550         check_ld() {
551             true
552         }
553     fi
554     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
555     check_ld <<EOF || die "Toolchain is unable to link executables"
556 int main(void) {return 0;}
557 EOF
558     # check system headers
559     check_header pthread.h
560     check_header unistd.h # for sysconf(3) and friends.
561
562     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
563 }
564
565 process_toolchain() {
566     process_common_toolchain
567
568     # Enable some useful compiler flags
569     if enabled gcc; then
570         enabled werror && check_add_cflags -Werror
571         check_add_cflags -Wall
572         check_add_cflags -Wdeclaration-after-statement
573         check_add_cflags -Wdisabled-optimization
574         check_add_cflags -Wfloat-conversion
575         check_add_cflags -Wpointer-arith
576         check_add_cflags -Wtype-limits
577         check_add_cflags -Wcast-qual
578         check_add_cflags -Wvla
579         check_add_cflags -Wimplicit-function-declaration
580         check_add_cflags -Wuninitialized
581         check_add_cflags -Wunused
582         # -Wextra has some tricky cases. Rather than fix them all now, get the
583         # flag for as many files as possible and fix the remaining issues
584         # piecemeal.
585         # https://bugs.chromium.org/p/webm/issues/detail?id=1069
586         check_add_cflags -Wextra
587         # check_add_cflags also adds to cxxflags. gtest does not do well with
588         # -Wundef so add it explicitly to CFLAGS only.
589         check_cflags -Wundef && add_cflags_only -Wundef
590         if enabled mips || [ -z "${INLINE}" ]; then
591           enabled extra_warnings || check_add_cflags -Wno-unused-function
592         fi
593         if ! enabled vp9_highbitdepth; then
594           # Avoid this warning for third_party C++ sources. Some reorganization
595           # would be needed to apply this only to test/*.cc.
596           check_cflags -Wshorten-64-to-32 && add_cflags_only -Wshorten-64-to-32
597         fi
598     fi
599
600     if enabled icc; then
601         enabled werror && check_add_cflags -Werror
602         check_add_cflags -Wall
603         check_add_cflags -Wpointer-arith
604
605         # ICC has a number of floating point optimizations that we disable
606         # in favor of deterministic output WRT to other compilers
607         add_cflags -fp-model precise
608     fi
609
610     # Enable extra, harmless warnings. These might provide additional insight
611     # to what the compiler is doing and why, but in general, but they shouldn't
612     # be treated as fatal, even if we're treating warnings as errors.
613     GCC_EXTRA_WARNINGS="
614         -Wdisabled-optimization
615         -Winline
616     "
617     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
618     RVCT_EXTRA_WARNINGS="
619         --remarks
620     "
621     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
622     if enabled extra_warnings; then
623         for w in ${EXTRA_WARNINGS}; do
624             check_add_cflags ${w}
625             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
626         done
627     fi
628
629     # ccache only really works on gcc toolchains
630     enabled gcc || soft_disable ccache
631     if enabled mips; then
632         enable_feature dequant_tokens
633         enable_feature dc_recon
634     fi
635
636     if enabled internal_stats; then
637         enable_feature vp9_postproc
638     fi
639
640     # Enable the postbuild target if building for visual studio.
641     case "$tgt_cc" in
642         vs*) enable_feature msvs
643              enable_feature solution
644              vs_version=${tgt_cc##vs}
645              VCPROJ_SFX=vcxproj
646              gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
647              enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
648              all_targets="${all_targets} solution"
649              INLINE="__forceinline"
650         ;;
651     esac
652
653     # Other toolchain specific defaults
654     case $toolchain in x86*) soft_enable postproc;; esac
655
656     if enabled postproc_visualizer; then
657         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
658     fi
659
660     # Enable unit tests by default if we have a working C++ compiler.
661     case "$toolchain" in
662         *-vs*)
663             soft_enable unit_tests
664             soft_enable webm_io
665             soft_enable libyuv
666         ;;
667         *-android-*)
668             soft_enable webm_io
669             soft_enable libyuv
670             # GTestLog must be modified to use Android logging utilities.
671         ;;
672         *-darwin-*)
673             # iOS/ARM builds do not work with gtest. This does not match
674             # x86 targets.
675         ;;
676         *-iphonesimulator-*)
677             soft_enable webm_io
678             soft_enable libyuv
679         ;;
680         *-win*)
681             # Some mingw toolchains don't have pthread available by default.
682             # Treat these more like visual studio where threading in gtest
683             # would be disabled for the same reason.
684             check_cxx "$@" <<EOF && soft_enable unit_tests
685 int z;
686 EOF
687             check_cxx "$@" <<EOF && soft_enable webm_io
688 int z;
689 EOF
690             check_cxx "$@" <<EOF && soft_enable libyuv
691 int z;
692 EOF
693         ;;
694         *)
695             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
696 int z;
697 EOF
698             check_cxx "$@" <<EOF && soft_enable webm_io
699 int z;
700 EOF
701             check_cxx "$@" <<EOF && soft_enable libyuv
702 int z;
703 EOF
704         ;;
705     esac
706     # libwebm needs to be linked with C++ standard library
707     enabled webm_io && LD=${CXX}
708
709     # append any user defined extra cflags
710     if [ -n "${extra_cflags}" ] ; then
711         check_add_cflags ${extra_cflags} || \
712         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
713     fi
714     if [ -n "${extra_cxxflags}" ]; then
715         check_add_cxxflags ${extra_cxxflags} || \
716         die "Requested extra CXXFLAGS '${extra_cxxflags}' not supported by compiler"
717     fi
718 }
719
720
721 ##
722 ## END APPLICATION SPECIFIC CONFIGURATION
723 ##
724 CONFIGURE_ARGS="$@"
725 process "$@"
726 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
727 cat <<EOF >> ${BUILD_PFX}vpx_config.c
728 #include "vpx/vpx_codec.h"
729 static const char* const cfg = "$CONFIGURE_ARGS";
730 const char *vpx_codec_build_config(void) {return cfg;}
731 EOF