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[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_vp8}                   VP8 codec support
39   ${toggle_vp9}                   VP9 codec support
40   ${toggle_vp10}                  VP10 codec support
41   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
42   ${toggle_postproc}              postprocessing
43   ${toggle_vp9_postproc}          vp9 specific postprocessing
44   ${toggle_multithread}           multithreaded encoding and decoding
45   ${toggle_spatial_resampling}    spatial sampling (scaling) support
46   ${toggle_realtime_only}         enable this option while building for real-time encoding
47   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
48   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
49   ${toggle_coefficient_range_checking}
50                                   enable decoder to check if intermediate
51                                   transform coefficients are in valid range
52   ${toggle_runtime_cpu_detect}    runtime cpu detection
53   ${toggle_shared}                shared library support
54   ${toggle_static}                static library support
55   ${toggle_small}                 favor smaller size over speed
56   ${toggle_postproc_visualizer}   macro block / block level visualizers
57   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
58   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
59   ${toggle_vp9_temporal_denoising}
60                                   enable vp9 temporal denoising
61   ${toggle_webm_io}               enable input from and output to WebM container
62   ${toggle_libyuv}                enable libyuv
63
64 Codecs:
65   Codecs can be selectively enabled or disabled individually, or by family:
66       --disable-<codec>
67   is equivalent to:
68       --disable-<codec>-encoder
69       --disable-<codec>-decoder
70
71   Codecs available in this distribution:
72 EOF
73 #restore editor state '
74
75     family="";
76     last_family="";
77     c="";
78     str="";
79     for c in ${CODECS}; do
80         family=${c%_*}
81         if [ "${family}" != "${last_family}" ]; then
82             [ -z "${str}" ] || echo "${str}"
83             str="$(printf '    %10s:' ${family})"
84         fi
85         str="${str} $(printf '%10s' ${c#*_})"
86         last_family=${family}
87     done
88     echo "${str}"
89     show_help_post
90 }
91
92 ##
93 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
94 ##
95
96 # all_platforms is a list of all supported target platforms. Maintain
97 # alphabetically by architecture, generic-gnu last.
98 all_platforms="${all_platforms} armv6-darwin-gcc"
99 all_platforms="${all_platforms} armv6-linux-rvct"
100 all_platforms="${all_platforms} armv6-linux-gcc"
101 all_platforms="${all_platforms} armv6-none-rvct"
102 all_platforms="${all_platforms} arm64-darwin-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} mips32-linux-gcc"
113 all_platforms="${all_platforms} mips64-linux-gcc"
114 all_platforms="${all_platforms} sparc-solaris-gcc"
115 all_platforms="${all_platforms} x86-android-gcc"
116 all_platforms="${all_platforms} x86-darwin8-gcc"
117 all_platforms="${all_platforms} x86-darwin8-icc"
118 all_platforms="${all_platforms} x86-darwin9-gcc"
119 all_platforms="${all_platforms} x86-darwin9-icc"
120 all_platforms="${all_platforms} x86-darwin10-gcc"
121 all_platforms="${all_platforms} x86-darwin11-gcc"
122 all_platforms="${all_platforms} x86-darwin12-gcc"
123 all_platforms="${all_platforms} x86-darwin13-gcc"
124 all_platforms="${all_platforms} x86-darwin14-gcc"
125 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
126 all_platforms="${all_platforms} x86-linux-gcc"
127 all_platforms="${all_platforms} x86-linux-icc"
128 all_platforms="${all_platforms} x86-os2-gcc"
129 all_platforms="${all_platforms} x86-solaris-gcc"
130 all_platforms="${all_platforms} x86-win32-gcc"
131 all_platforms="${all_platforms} x86-win32-vs7"
132 all_platforms="${all_platforms} x86-win32-vs8"
133 all_platforms="${all_platforms} x86-win32-vs9"
134 all_platforms="${all_platforms} x86-win32-vs10"
135 all_platforms="${all_platforms} x86-win32-vs11"
136 all_platforms="${all_platforms} x86-win32-vs12"
137 all_platforms="${all_platforms} x86-win32-vs14"
138 all_platforms="${all_platforms} x86_64-android-gcc"
139 all_platforms="${all_platforms} x86_64-darwin9-gcc"
140 all_platforms="${all_platforms} x86_64-darwin10-gcc"
141 all_platforms="${all_platforms} x86_64-darwin11-gcc"
142 all_platforms="${all_platforms} x86_64-darwin12-gcc"
143 all_platforms="${all_platforms} x86_64-darwin13-gcc"
144 all_platforms="${all_platforms} x86_64-darwin14-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-vs8"
151 all_platforms="${all_platforms} x86_64-win64-vs9"
152 all_platforms="${all_platforms} x86_64-win64-vs10"
153 all_platforms="${all_platforms} x86_64-win64-vs11"
154 all_platforms="${all_platforms} x86_64-win64-vs12"
155 all_platforms="${all_platforms} x86_64-win64-vs14"
156 all_platforms="${all_platforms} generic-gnu"
157
158 # all_targets is a list of all targets that can be configured
159 # note that these should be in dependency order for now.
160 all_targets="libs examples docs"
161
162 # all targets available are enabled, by default.
163 for t in ${all_targets}; do
164     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
165 done
166
167 if ! perl --version >/dev/null; then
168     die "Perl is required to build"
169 fi
170
171
172 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
173   # test to see if source_path already configured
174   if [ -f "${source_path}/vpx_config.h" ]; then
175     die "source directory already configured; run 'make distclean' there first"
176   fi
177 fi
178
179 # check installed doxygen version
180 doxy_version=$(doxygen --version 2>/dev/null)
181 doxy_major=${doxy_version%%.*}
182 if [ ${doxy_major:-0} -ge 1 ]; then
183     doxy_version=${doxy_version#*.}
184     doxy_minor=${doxy_version%%.*}
185     doxy_patch=${doxy_version##*.}
186
187     [ $doxy_major -gt 1 ] && enable_feature doxygen
188     [ $doxy_minor -gt 5 ] && enable_feature doxygen
189     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
190 fi
191
192 # disable codecs when their source directory does not exist
193 [ -d "${source_path}/vp8" ] || disable_feature vp8
194 [ -d "${source_path}/vp9" ] || disable_feature vp9
195 [ -d "${source_path}/vp10" ] || disable_feature vp10
196
197 # disable vp10 codec by default
198 disable_feature vp10
199
200 # install everything except the sources, by default. sources will have
201 # to be enabled when doing dist builds, since that's no longer a common
202 # case.
203 enabled doxygen && enable_feature install_docs
204 enable_feature install_bins
205 enable_feature install_libs
206
207 enable_feature static
208 enable_feature optimizations
209 enable_feature dependency_tracking
210 enable_feature spatial_resampling
211 enable_feature multithread
212 enable_feature os_support
213 enable_feature temporal_denoising
214
215 CODECS="
216     vp8_encoder
217     vp8_decoder
218     vp9_encoder
219     vp9_decoder
220     vp10_encoder
221     vp10_decoder
222 "
223 CODEC_FAMILIES="
224     vp8
225     vp9
226     vp10
227 "
228
229 ARCH_LIST="
230     arm
231     mips
232     x86
233     x86_64
234 "
235 ARCH_EXT_LIST="
236     edsp
237     media
238     neon
239     neon_asm
240
241     mips32
242     dspr2
243     msa
244     mips64
245
246     mmx
247     sse
248     sse2
249     sse3
250     ssse3
251     sse4_1
252     avx
253     avx2
254 "
255 HAVE_LIST="
256     ${ARCH_EXT_LIST}
257     vpx_ports
258     stdint_h
259     pthread_h
260     sys_mman_h
261     unistd_h
262 "
263 EXPERIMENT_LIST="
264     spatial_svc
265     fp_mb_stats
266     emulate_hardware
267     misc_fixes
268 "
269 CONFIG_LIST="
270     dependency_tracking
271     external_build
272     install_docs
273     install_bins
274     install_libs
275     install_srcs
276     use_x86inc
277     debug
278     gprof
279     gcov
280     rvct
281     gcc
282     msvs
283     pic
284     big_endian
285
286     codec_srcs
287     debug_libs
288
289     dequant_tokens
290     dc_recon
291     runtime_cpu_detect
292     postproc
293     vp9_postproc
294     multithread
295     internal_stats
296     ${CODECS}
297     ${CODEC_FAMILIES}
298     encoders
299     decoders
300     static_msvcrt
301     spatial_resampling
302     realtime_only
303     onthefly_bitpacking
304     error_concealment
305     shared
306     static
307     small
308     postproc_visualizer
309     os_support
310     unit_tests
311     webm_io
312     libyuv
313     decode_perf_tests
314     encode_perf_tests
315     multi_res_encoding
316     temporal_denoising
317     vp9_temporal_denoising
318     coefficient_range_checking
319     vp9_highbitdepth
320     experimental
321     size_limit
322     ${EXPERIMENT_LIST}
323 "
324 CMDLINE_SELECT="
325     dependency_tracking
326     external_build
327     extra_warnings
328     werror
329     install_docs
330     install_bins
331     install_libs
332     install_srcs
333     debug
334     gprof
335     gcov
336     pic
337     use_x86inc
338     optimizations
339     ccache
340     runtime_cpu_detect
341     thumb
342
343     libs
344     examples
345     docs
346     libc
347     as
348     size_limit
349     codec_srcs
350     debug_libs
351
352     dequant_tokens
353     dc_recon
354     postproc
355     vp9_postproc
356     multithread
357     internal_stats
358     ${CODECS}
359     ${CODEC_FAMILIES}
360     static_msvcrt
361     spatial_resampling
362     realtime_only
363     onthefly_bitpacking
364     error_concealment
365     shared
366     static
367     small
368     postproc_visualizer
369     unit_tests
370     webm_io
371     libyuv
372     decode_perf_tests
373     encode_perf_tests
374     multi_res_encoding
375     temporal_denoising
376     vp9_temporal_denoising
377     coefficient_range_checking
378     vp9_highbitdepth
379     experimental
380 "
381
382 process_cmdline() {
383     for opt do
384         optval="${opt#*=}"
385         case "$opt" in
386         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
387         --enable-?*|--disable-?*)
388         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
389         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
390             if enabled experimental; then
391                 ${action}_feature $option
392             else
393                 log_echo "Ignoring $opt -- not in experimental mode."
394             fi
395         else
396             process_common_cmdline $opt
397         fi
398         ;;
399         *) process_common_cmdline "$opt"
400         ;;
401         esac
402     done
403 }
404
405 post_process_cmdline() {
406     c=""
407
408     # If the codec family is disabled, disable all components of that family.
409     # If the codec family is enabled, enable all components of that family.
410     log_echo "Configuring selected codecs"
411     for c in ${CODECS}; do
412         disabled ${c%%_*} && disable_feature ${c}
413         enabled ${c%%_*} && enable_feature ${c}
414     done
415
416     # Enable all detected codecs, if they haven't been disabled
417     for c in ${CODECS}; do soft_enable $c; done
418
419     # Enable the codec family if any component of that family is enabled
420     for c in ${CODECS}; do
421         enabled $c && enable_feature ${c%_*}
422     done
423
424     # Set the {en,de}coders variable if any algorithm in that class is enabled
425     for c in ${CODECS}; do
426         enabled ${c} && enable_feature ${c##*_}s
427     done
428 }
429
430
431 process_targets() {
432     enabled child || write_common_config_banner
433     write_common_target_config_h ${BUILD_PFX}vpx_config.h
434     write_common_config_targets
435
436     # Calculate the default distribution name, based on the enabled features
437     cf=""
438     DIST_DIR=vpx
439     for cf in $CODEC_FAMILIES; do
440         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
441             DIST_DIR="${DIST_DIR}-${cf}"
442         elif enabled ${cf}_encoder; then
443             DIST_DIR="${DIST_DIR}-${cf}cx"
444         elif enabled ${cf}_decoder; then
445             DIST_DIR="${DIST_DIR}-${cf}dx"
446         fi
447     done
448     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
449     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
450     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
451     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
452     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
453     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
454     case "${tgt_os}" in
455     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
456           DIST_DIR="${DIST_DIR}-${tgt_cc}"
457           ;;
458     esac
459     if [ -f "${source_path}/build/make/version.sh" ]; then
460         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
461         DIST_DIR="${DIST_DIR}-${ver}"
462         VERSION_STRING=${ver}
463         ver=${ver%%-*}
464         VERSION_PATCH=${ver##*.}
465         ver=${ver%.*}
466         VERSION_MINOR=${ver##*.}
467         ver=${ver#v}
468         VERSION_MAJOR=${ver%.*}
469     fi
470     enabled child || cat <<EOF >> config.mk
471
472 PREFIX=${prefix}
473 ifeq (\$(MAKECMDGOALS),dist)
474 DIST_DIR?=${DIST_DIR}
475 else
476 DIST_DIR?=\$(DESTDIR)${prefix}
477 endif
478 LIBSUBDIR=${libdir##${prefix}/}
479
480 VERSION_STRING=${VERSION_STRING}
481
482 VERSION_MAJOR=${VERSION_MAJOR}
483 VERSION_MINOR=${VERSION_MINOR}
484 VERSION_PATCH=${VERSION_PATCH}
485
486 CONFIGURE_ARGS=${CONFIGURE_ARGS}
487 EOF
488     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
489
490     #
491     # Write makefiles for all enabled targets
492     #
493     for tgt in libs examples docs solution; do
494         tgt_fn="$tgt-$toolchain.mk"
495
496         if enabled $tgt; then
497             echo "Creating makefiles for ${toolchain} ${tgt}"
498             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
499             #write_${tgt}_config
500         fi
501     done
502
503 }
504
505 process_detect() {
506     if enabled shared; then
507         # Can only build shared libs on a subset of platforms. Doing this check
508         # here rather than at option parse time because the target auto-detect
509         # magic happens after the command line has been parsed.
510         if ! enabled linux && ! enabled os2; then
511             if enabled gnu; then
512                 echo "--enable-shared is only supported on ELF; assuming this is OK"
513             else
514                 die "--enable-shared only supported on ELF and OS/2 for now"
515             fi
516         fi
517     fi
518     if [ -z "$CC" ] || enabled external_build; then
519         echo "Bypassing toolchain for environment detection."
520         enable_feature external_build
521         check_header() {
522             log fake_check_header "$@"
523             header=$1
524             shift
525             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
526             disable_feature $var
527             # Headers common to all environments
528             case $header in
529                 stdio.h)
530                     true;
531                 ;;
532                 *)
533                     result=false
534                     for d in "$@"; do
535                         [ -f "${d##-I}/$header" ] && result=true && break
536                     done
537                     ${result:-true}
538             esac && enable_feature $var
539
540             # Specialize windows and POSIX environments.
541             case $toolchain in
542                 *-win*-*)
543                     case $header-$toolchain in
544                         stdint*-gcc) true;;
545                         *) false;;
546                     esac && enable_feature $var
547                     ;;
548                 *)
549                     case $header in
550                         stdint.h) true;;
551                         pthread.h) true;;
552                         sys/mman.h) true;;
553                         unistd.h) true;;
554                         *) false;;
555                     esac && enable_feature $var
556             esac
557             enabled $var
558         }
559         check_ld() {
560             true
561         }
562     fi
563     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
564     check_ld <<EOF || die "Toolchain is unable to link executables"
565 int main(void) {return 0;}
566 EOF
567     # check system headers
568     check_header stdint.h
569     check_header pthread.h
570     check_header sys/mman.h
571     check_header unistd.h # for sysconf(3) and friends.
572
573     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
574 }
575
576 process_toolchain() {
577     process_common_toolchain
578
579     # Enable some useful compiler flags
580     if enabled gcc; then
581         enabled werror && check_add_cflags -Werror
582         check_add_cflags -Wall
583         check_add_cflags -Wdeclaration-after-statement
584         check_add_cflags -Wdisabled-optimization
585         check_add_cflags -Wpointer-arith
586         check_add_cflags -Wtype-limits
587         check_add_cflags -Wcast-qual
588         check_add_cflags -Wvla
589         check_add_cflags -Wimplicit-function-declaration
590         check_add_cflags -Wuninitialized
591         check_add_cflags -Wunused-variable
592         case ${CC} in
593           *clang*)
594               # libvpx and/or clang have issues with aliasing:
595               # https://code.google.com/p/webm/issues/detail?id=603
596               # work around them until they are fixed
597               check_add_cflags -fno-strict-aliasing
598           ;;
599           *) check_add_cflags -Wunused-but-set-variable ;;
600         esac
601         enabled extra_warnings || check_add_cflags -Wno-unused-function
602     fi
603
604     if enabled icc; then
605         enabled werror && check_add_cflags -Werror
606         check_add_cflags -Wall
607         check_add_cflags -Wpointer-arith
608
609         # ICC has a number of floating point optimizations that we disable
610         # in favor of deterministic output WRT to other compilers
611         add_cflags -fp-model precise
612     fi
613
614     # Enable extra, harmless warnings. These might provide additional insight
615     # to what the compiler is doing and why, but in general, but they shouldn't
616     # be treated as fatal, even if we're treating warnings as errors.
617     GCC_EXTRA_WARNINGS="
618         -Wdisabled-optimization
619         -Winline
620     "
621     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
622     RVCT_EXTRA_WARNINGS="
623         --remarks
624     "
625     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
626     if enabled extra_warnings; then
627         for w in ${EXTRA_WARNINGS}; do
628             check_add_cflags ${w}
629             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
630         done
631     fi
632
633     # ccache only really works on gcc toolchains
634     enabled gcc || soft_disable ccache
635     if enabled mips; then
636         enable_feature dequant_tokens
637         enable_feature dc_recon
638     fi
639
640     if enabled internal_stats; then
641         enable_feature vp9_postproc
642     fi
643
644     # Enable the postbuild target if building for visual studio.
645     case "$tgt_cc" in
646         vs*) enable_feature msvs
647              enable_feature solution
648              vs_version=${tgt_cc##vs}
649              case $vs_version in
650              [789])
651                  VCPROJ_SFX=vcproj
652                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
653                  ;;
654              10|11|12|14)
655                  VCPROJ_SFX=vcxproj
656                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
657                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
658                  ;;
659              esac
660              all_targets="${all_targets} solution"
661              INLINE="__forceinline"
662         ;;
663     esac
664
665     # Other toolchain specific defaults
666     case $toolchain in x86*) soft_enable postproc;; esac
667
668     if enabled postproc_visualizer; then
669         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
670     fi
671
672     # Enable unit tests by default if we have a working C++ compiler.
673     case "$toolchain" in
674         *-vs*)
675             soft_enable unit_tests
676             soft_enable webm_io
677             soft_enable libyuv
678         ;;
679         *-android-*)
680             soft_enable webm_io
681             soft_enable libyuv
682             # GTestLog must be modified to use Android logging utilities.
683         ;;
684         *-darwin-*)
685             # iOS/ARM builds do not work with gtest. This does not match
686             # x86 targets.
687         ;;
688         *-iphonesimulator-*)
689             soft_enable webm_io
690             soft_enable libyuv
691         ;;
692         *-win*)
693             # Some mingw toolchains don't have pthread available by default.
694             # Treat these more like visual studio where threading in gtest
695             # would be disabled for the same reason.
696             check_cxx "$@" <<EOF && soft_enable unit_tests
697 int z;
698 EOF
699             check_cxx "$@" <<EOF && soft_enable webm_io
700 int z;
701 EOF
702             check_cxx "$@" <<EOF && soft_enable libyuv
703 int z;
704 EOF
705         ;;
706         *)
707             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
708 int z;
709 EOF
710             check_cxx "$@" <<EOF && soft_enable webm_io
711 int z;
712 EOF
713             check_cxx "$@" <<EOF && soft_enable libyuv
714 int z;
715 EOF
716         ;;
717     esac
718     # libwebm needs to be linked with C++ standard library
719     enabled webm_io && LD=${CXX}
720
721     # append any user defined extra cflags
722     if [ -n "${extra_cflags}" ] ; then
723         check_add_cflags ${extra_cflags} || \
724         die "Requested extra CFLAGS '${extra_cflags}' not supported by compiler"
725     fi
726 }
727
728
729 ##
730 ## END APPLICATION SPECIFIC CONFIGURATION
731 ##
732 CONFIGURE_ARGS="$@"
733 process "$@"
734 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
735 cat <<EOF >> ${BUILD_PFX}vpx_config.c
736 #include "vpx/vpx_codec.h"
737 static const char* const cfg = "$CONFIGURE_ARGS";
738 const char *vpx_codec_build_config(void) {return cfg;}
739 EOF