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