configure

   1 #!/bin/bash
   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   --libc=PATH                     path to alternate libc
  28   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  29   --sdk-path=PATH                 path to root of sdk (iOS, android builds only)
  30   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  31                                   supported by hardware [auto]
  32   ${toggle_codec_srcs}            in/exclude codec library source code
  33   ${toggle_debug_libs}            in/exclude debug version of libraries
  34   ${toggle_md5}                   support for output of checksum data
  35   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  36   ${toggle_vp8}                   VP8 codec support
  37   ${toggle_vp9}                   VP9 codec support
  38   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  39   ${toggle_mem_tracker}           track memory usage
  40   ${toggle_postproc}              postprocessing
  41   ${toggle_multithread}           multithreaded encoding and decoding
  42   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  43   ${toggle_realtime_only}         enable this option while building for real-time encoding
  44   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  45   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  46   ${toggle_runtime_cpu_detect}    runtime cpu detection
  47   ${toggle_shared}                shared library support
  48   ${toggle_static}                static library support
  49   ${toggle_small}                 favor smaller size over speed
  50   ${toggle_postproc_visualizer}   macro block / block level visualizers
  51   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  52   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  53
  54 Codecs:
  55   Codecs can be selectively enabled or disabled individually, or by family:
  56       --disable-<codec>
  57   is equivalent to:
  58       --disable-<codec>-encoder
  59       --disable-<codec>-decoder
  60
  61   Codecs available in this distribution:
  62 EOF
  63 #restore editor state '
  64
  65     local family;
  66     local last_family;
  67     local c;
  68     local str;
  69     for c in ${CODECS}; do
  70         family=${c%_*}
  71         if [ "${family}" != "${last_family}" ]; then
  72             [ -z "${str}" ] || echo "${str}"
  73             str="$(printf '    %10s:' ${family})"
  74         fi
  75         str="${str} $(printf '%10s' ${c#*_})"
  76         last_family=${family}
  77     done
  78     echo "${str}"
  79     show_help_post
  80 }
  81
  82 ##
  83 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  84 ##
  85
  86 # all_platforms is a list of all supported target platforms. Maintain
  87 # alphabetically by architecture, generic-gnu last.
  88 all_platforms="${all_platforms} armv5te-android-gcc"
  89 all_platforms="${all_platforms} armv5te-linux-rvct"
  90 all_platforms="${all_platforms} armv5te-linux-gcc"
  91 all_platforms="${all_platforms} armv5te-none-rvct"
  92 all_platforms="${all_platforms} armv6-darwin-gcc"
  93 all_platforms="${all_platforms} armv6-linux-rvct"
  94 all_platforms="${all_platforms} armv6-linux-gcc"
  95 all_platforms="${all_platforms} armv6-none-rvct"
  96 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
  97 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  98 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  99 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 100 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 101 all_platforms="${all_platforms} mips32-linux-gcc"
 102 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 103 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 104 all_platforms="${all_platforms} ppc32-linux-gcc"
 105 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 106 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 107 all_platforms="${all_platforms} ppc64-linux-gcc"
 108 all_platforms="${all_platforms} sparc-solaris-gcc"
 109 all_platforms="${all_platforms} x86-android-gcc"
 110 all_platforms="${all_platforms} x86-darwin8-gcc"
 111 all_platforms="${all_platforms} x86-darwin8-icc"
 112 all_platforms="${all_platforms} x86-darwin9-gcc"
 113 all_platforms="${all_platforms} x86-darwin9-icc"
 114 all_platforms="${all_platforms} x86-darwin10-gcc"
 115 all_platforms="${all_platforms} x86-darwin11-gcc"
 116 all_platforms="${all_platforms} x86-darwin12-gcc"
 117 all_platforms="${all_platforms} x86-linux-gcc"
 118 all_platforms="${all_platforms} x86-linux-icc"
 119 all_platforms="${all_platforms} x86-os2-gcc"
 120 all_platforms="${all_platforms} x86-solaris-gcc"
 121 all_platforms="${all_platforms} x86-win32-gcc"
 122 all_platforms="${all_platforms} x86-win32-vs7"
 123 all_platforms="${all_platforms} x86-win32-vs8"
 124 all_platforms="${all_platforms} x86-win32-vs9"
 125 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 126 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 127 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 128 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 129 all_platforms="${all_platforms} x86_64-linux-gcc"
 130 all_platforms="${all_platforms} x86_64-linux-icc"
 131 all_platforms="${all_platforms} x86_64-solaris-gcc"
 132 all_platforms="${all_platforms} x86_64-win64-gcc"
 133 all_platforms="${all_platforms} x86_64-win64-vs8"
 134 all_platforms="${all_platforms} x86_64-win64-vs9"
 135 all_platforms="${all_platforms} universal-darwin8-gcc"
 136 all_platforms="${all_platforms} universal-darwin9-gcc"
 137 all_platforms="${all_platforms} universal-darwin10-gcc"
 138 all_platforms="${all_platforms} universal-darwin11-gcc"
 139 all_platforms="${all_platforms} universal-darwin12-gcc"
 140 all_platforms="${all_platforms} generic-gnu"
 141
 142 # all_targets is a list of all targets that can be configured
 143 # note that these should be in dependency order for now.
 144 all_targets="libs examples docs"
 145
 146 # all targets available are enabled, by default.
 147 for t in ${all_targets}; do
 148     [ -f ${source_path}/${t}.mk ] && enable ${t}
 149 done
 150
 151 # check installed doxygen version
 152 doxy_version=$(doxygen --version 2>/dev/null)
 153 doxy_major=${doxy_version%%.*}
 154 if [ ${doxy_major:-0} -ge 1 ]; then
 155     doxy_version=${doxy_version#*.}
 156     doxy_minor=${doxy_version%%.*}
 157     doxy_patch=${doxy_version##*.}
 158
 159     [ $doxy_major -gt 1 ] && enable doxygen
 160     [ $doxy_minor -gt 5 ] && enable doxygen
 161     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 162 fi
 163
 164 # install everything except the sources, by default. sources will have
 165 # to be enabled when doing dist builds, since that's no longer a common
 166 # case.
 167 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 168 enable install_bins
 169 enable install_libs
 170
 171 enable static
 172 enable optimizations
 173 enable fast_unaligned #allow unaligned accesses, if supported by hw
 174 enable md5
 175 enable spatial_resampling
 176 enable multithread
 177 enable os_support
 178 enable temporal_denoising
 179
 180 [ -d ${source_path}/../include ] && enable alt_tree_layout
 181 for d in vp8 vp9; do
 182     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 183 done
 184
 185 if ! enabled alt_tree_layout; then
 186 # development environment
 187 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 188 [ -d ${source_path}/vp9 ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 189 else
 190 # customer environment
 191 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 192 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 193 [ -f ${source_path}/../include/vpx/vp9cx.h ] && CODECS="${CODECS} vp9_encoder"
 194 [ -f ${source_path}/../include/vpx/vp9dx.h ] && CODECS="${CODECS} vp9_decoder"
 195 [ -f ${source_path}/../include/vpx/vp8cx.h ] || disable vp8_encoder
 196 [ -f ${source_path}/../include/vpx/vp8dx.h ] || disable vp8_decoder
 197 [ -f ${source_path}/../include/vpx/vp9cx.h ] || disable vp9_encoder
 198 [ -f ${source_path}/../include/vpx/vp9dx.h ] || disable vp9_decoder
 199
 200 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 201 fi
 202
 203 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 204 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 205
 206 ARCH_LIST="
 207     arm
 208     mips
 209     x86
 210     x86_64
 211     ppc32
 212     ppc64
 213 "
 214 ARCH_EXT_LIST="
 215     edsp
 216     media
 217     neon
 218
 219     mips32
 220     dspr2
 221
 222     mmx
 223     sse
 224     sse2
 225     sse3
 226     ssse3
 227     sse4_1
 228
 229     altivec
 230 "
 231 HAVE_LIST="
 232     ${ARCH_EXT_LIST}
 233     vpx_ports
 234     stdint_h
 235     alt_tree_layout
 236     pthread_h
 237     sys_mman_h
 238     unistd_h
 239 "
 240 EXPERIMENT_LIST="
 241     csm
 242     new_mvref
 243     implicit_segmentation
 244     newbintramodes
 245     comp_interintra_pred
 246     enable_6tap
 247     abovesprefmv
 248     code_nonzerocount
 249     useselectrefmv
 250     modelcoefprob
 251     loop_dering
 252     implicit_compoundinter_weight
 253     scatterscan
 254     oneshotq
 255     sbsegment
 256 "
 257 CONFIG_LIST="
 258     external_build
 259     install_docs
 260     install_bins
 261     install_libs
 262     install_srcs
 263     debug
 264     gprof
 265     gcov
 266     rvct
 267     gcc
 268     msvs
 269     pic
 270     big_endian
 271
 272     codec_srcs
 273     debug_libs
 274     fast_unaligned
 275     mem_manager
 276     mem_tracker
 277     mem_checks
 278     md5
 279
 280     dequant_tokens
 281     dc_recon
 282     runtime_cpu_detect
 283     postproc
 284     multithread
 285     internal_stats
 286     ${CODECS}
 287     ${CODEC_FAMILIES}
 288     encoders
 289     decoders
 290     static_msvcrt
 291     spatial_resampling
 292     realtime_only
 293     onthefly_bitpacking
 294     error_concealment
 295     shared
 296     static
 297     small
 298     postproc_visualizer
 299     os_support
 300     unit_tests
 301     multi_res_encoding
 302     temporal_denoising
 303     experimental
 304     decrypt
 305     ${EXPERIMENT_LIST}
 306 "
 307 CMDLINE_SELECT="
 308     external_build
 309     extra_warnings
 310     werror
 311     install_docs
 312     install_bins
 313     install_libs
 314     install_srcs
 315     debug
 316     gprof
 317     gcov
 318     pic
 319     optimizations
 320     ccache
 321     runtime_cpu_detect
 322
 323     libs
 324     examples
 325     docs
 326     libc
 327     as
 328     fast_unaligned
 329     codec_srcs
 330     debug_libs
 331     md5
 332
 333     dequant_tokens
 334     dc_recon
 335     postproc
 336     multithread
 337     internal_stats
 338     ${CODECS}
 339     ${CODEC_FAMILIES}
 340     static_msvcrt
 341     mem_tracker
 342     spatial_resampling
 343     realtime_only
 344     onthefly_bitpacking
 345     error_concealment
 346     shared
 347     static
 348     small
 349     postproc_visualizer
 350     unit_tests
 351     multi_res_encoding
 352     temporal_denoising
 353     experimental
 354     decrypt
 355 "
 356
 357 process_cmdline() {
 358     for opt do
 359         optval="${opt#*=}"
 360         case "$opt" in
 361         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 362         --enable-?*|--disable-?*)
 363         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 364         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 365             if enabled experimental; then
 366                 $action $option
 367             else
 368                 log_echo "Ignoring $opt -- not in experimental mode."
 369             fi
 370         else
 371             process_common_cmdline $opt
 372         fi
 373         ;;
 374         *) process_common_cmdline "$opt"
 375         ;;
 376         esac
 377     done
 378 }
 379
 380 post_process_cmdline() {
 381     local c
 382
 383     # If the codec family is disabled, disable all components of that family.
 384     # If the codec family is enabled, enable all components of that family.
 385     log_echo "Configuring selected codecs"
 386     for c in ${CODECS}; do
 387         disabled ${c%%_*} && disable ${c}
 388         enabled ${c%%_*} && enable ${c}
 389     done
 390
 391     # Enable all detected codecs, if they haven't been disabled
 392     for c in ${CODECS}; do soft_enable $c; done
 393
 394     # Enable the codec family if any component of that family is enabled
 395     for c in ${CODECS}; do
 396         enabled $c && enable ${c%_*}
 397     done
 398
 399     # Set the {en,de}coders variable if any algorithm in that class is enabled
 400     for c in ${CODECS}; do
 401         enabled ${c} && enable ${c##*_}s
 402     done
 403 }
 404
 405
 406 process_targets() {
 407     enabled child || write_common_config_banner
 408     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 409
 410     # TODO: add host tools target (obj_int_extract, etc)
 411
 412     # For fat binaries, call configure recursively to configure for each
 413     # binary architecture to be included.
 414     if enabled universal; then
 415         # Call configure (ourselves) for each subarchitecture
 416         for arch in $fat_bin_archs; do
 417             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 418         done
 419     fi
 420
 421     # The write_common_config (config.mk) logic is deferred until after the
 422     # recursive calls to configure complete, becuase we want our universal
 423     # targets to be executed last.
 424     write_common_config_targets
 425     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 426
 427     # Calculate the default distribution name, based on the enabled features
 428     local cf
 429     local DIST_DIR=vpx
 430     for cf in $CODEC_FAMILIES; do
 431         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 432             DIST_DIR="${DIST_DIR}-${cf}"
 433         elif enabled ${cf}_encoder; then
 434             DIST_DIR="${DIST_DIR}-${cf}cx"
 435         elif enabled ${cf}_decoder; then
 436             DIST_DIR="${DIST_DIR}-${cf}dx"
 437         fi
 438     done
 439     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 440     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 441     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 442     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 443     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 444     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 445     case "${tgt_os}" in
 446     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 447           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 448           ;;
 449     esac
 450     if [ -f "${source_path}/build/make/version.sh" ]; then
 451         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 452         DIST_DIR="${DIST_DIR}-${ver}"
 453         VERSION_STRING=${ver}
 454         ver=${ver%%-*}
 455         VERSION_PATCH=${ver##*.}
 456         ver=${ver%.*}
 457         VERSION_MINOR=${ver##*.}
 458         ver=${ver#v}
 459         VERSION_MAJOR=${ver%.*}
 460     fi
 461     enabled child || cat <<EOF >> config.mk
 462
 463 PREFIX=${prefix}
 464 ifeq (\$(MAKECMDGOALS),dist)
 465 DIST_DIR?=${DIST_DIR}
 466 else
 467 DIST_DIR?=\$(DESTDIR)${prefix}
 468 endif
 469 LIBSUBDIR=${libdir##${prefix}/}
 470
 471 VERSION_STRING=${VERSION_STRING}
 472
 473 VERSION_MAJOR=${VERSION_MAJOR}
 474 VERSION_MINOR=${VERSION_MINOR}
 475 VERSION_PATCH=${VERSION_PATCH}
 476
 477 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 478 EOF
 479     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 480
 481     #
 482     # Write makefiles for all enabled targets
 483     #
 484     for tgt in libs examples docs solution; do
 485         local tgt_fn="$tgt-$toolchain.mk"
 486
 487         if enabled $tgt; then
 488             echo "Creating makefiles for ${toolchain} ${tgt}"
 489             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 490             #write_${tgt}_config
 491         fi
 492     done
 493
 494 }
 495
 496 process_detect() {
 497     if enabled shared; then
 498         # Can only build shared libs on a subset of platforms. Doing this check
 499         # here rather than at option parse time because the target auto-detect
 500         # magic happens after the command line has been parsed.
 501         if ! enabled linux; then
 502             if enabled gnu; then
 503                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 504             else
 505                 die "--enable-shared only supported on ELF for now"
 506             fi
 507         fi
 508     fi
 509     if [ -z "$CC" ] || enabled external_build; then
 510         echo "Bypassing toolchain for environment detection."
 511         enable external_build
 512         check_header() {
 513             log fake_check_header "$@"
 514             header=$1
 515             shift
 516             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 517             disable $var
 518             # Headers common to all environments
 519             case $header in
 520                 stdio.h)
 521                     true;
 522                 ;;
 523                 *)
 524                     local result=false
 525                     for d in "$@"; do
 526                         [ -f "${d##-I}/$header" ] && result=true && break
 527                     done
 528                     ${result:-true}
 529             esac && enable $var
 530
 531             # Specialize windows and POSIX environments.
 532             case $toolchain in
 533                 *-win*-*)
 534                     case $header-$toolchain in
 535                         stdint*-gcc) true;;
 536                         *) false;;
 537                     esac && enable $var
 538                     ;;
 539                 *)
 540                     case $header in
 541                         stdint.h) true;;
 542                         pthread.h) true;;
 543                         sys/mman.h) true;;
 544                         unistd.h) true;;
 545                         *) false;;
 546                     esac && enable $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} ${CFLAGS}"
 555     check_ld <<EOF || die "Toolchain is unable to link executables"
 556 int main(void) {return 0;}
 557 EOF
 558     # check system headers
 559     check_header stdint.h
 560     check_header pthread.h
 561     check_header sys/mman.h
 562     check_header unistd.h # for sysconf(3) and friends.
 563
 564     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 565 }
 566
 567 process_toolchain() {
 568     process_common_toolchain
 569
 570     # Handle universal binaries for this architecture
 571     case $toolchain in
 572         universal-darwin*)
 573             local darwin_ver=${tgt_os##darwin}
 574
 575             # Snow Leopard (10.6/darwin10) dropped support for PPC
 576             # Include PPC support for all prior versions
 577             if [ $darwin_ver -lt 10 ]; then
 578                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 579             fi
 580
 581             # Tiger (10.4/darwin8) brought support for x86
 582             if [ $darwin_ver -ge 8 ]; then
 583                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 584             fi
 585
 586             # Leopard (10.5/darwin9) brought 64 bit support
 587             if [ $darwin_ver -ge 9 ]; then
 588                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 589             fi
 590             ;;
 591     esac
 592
 593
 594     # Enable some useful compiler flags
 595     if enabled gcc; then
 596         enabled werror && check_add_cflags -Werror
 597         check_add_cflags -Wall
 598         check_add_cflags -Wdeclaration-after-statement
 599         check_add_cflags -Wdisabled-optimization
 600         check_add_cflags -Wpointer-arith
 601         check_add_cflags -Wtype-limits
 602         check_add_cflags -Wcast-qual
 603         check_add_cflags -Wvla
 604         check_add_cflags -Wimplicit-function-declaration
 605         check_add_cflags -Wuninitialized
 606         check_add_cflags -Wunused-variable
 607         check_add_cflags -Wunused-but-set-variable
 608         enabled extra_warnings || check_add_cflags -Wno-unused-function
 609     fi
 610
 611     if enabled icc; then
 612         enabled werror && check_add_cflags -Werror
 613         check_add_cflags -Wall
 614         check_add_cflags -Wpointer-arith
 615
 616         # ICC has a number of floating point optimizations that we disable
 617         # in favor of deterministic output WRT to other compilers
 618         add_cflags -fp-model precise
 619     fi
 620
 621     # Enable extra, harmless warnings. These might provide additional insight
 622     # to what the compiler is doing and why, but in general, but they shouldn't
 623     # be treated as fatal, even if we're treating warnings as errors.
 624     GCC_EXTRA_WARNINGS="
 625         -Wdisabled-optimization
 626         -Winline
 627     "
 628     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 629     RVCT_EXTRA_WARNINGS="
 630         --remarks
 631     "
 632     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 633     if enabled extra_warnings; then
 634         for w in ${EXTRA_WARNINGS}; do
 635             check_add_cflags ${w}
 636             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 637         done
 638     fi
 639
 640     # ccache only really works on gcc toolchains
 641     enabled gcc || soft_disable ccache
 642     if enabled mips; then
 643         enable dequant_tokens
 644         enable dc_recon
 645     fi
 646
 647     # Enable the postbuild target if building for visual studio.
 648     case "$tgt_cc" in
 649         vs*) enable msvs
 650              enable solution
 651              vs_version=${tgt_cc##vs}
 652              all_targets="${all_targets} solution"
 653              INLINE="__forceinline"
 654         ;;
 655     esac
 656
 657     # Other toolchain specific defaults
 658     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 659
 660     if enabled postproc_visualizer; then
 661         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 662     fi
 663
 664     # Enable unit tests by default if we have a working C++ compiler.
 665     case "$toolchain" in
 666         *-vs*)
 667             soft_enable unit_tests
 668         ;;
 669         *-android-*)
 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         *)
 677             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 678 int z;
 679 EOF
 680         ;;
 681     esac
 682 }
 683
 684
 685 ##
 686 ## END APPLICATION SPECIFIC CONFIGURATION
 687 ##
 688 CONFIGURE_ARGS="$@"
 689 process "$@"
 690 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 691 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 692 static const char* const cfg = "$CONFIGURE_ARGS";
 693 const char *vpx_codec_build_config(void) {return cfg;}
 694 EOF