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     implicit_segmentation
 243     modelcoefprob
 244     loop_dering
 245     scatterscan
 246     oneshotq
 247     multiple_arf
 248     non420
 249     ab4x4
 250     comp_inter_joint_search
 251 "
 252 CONFIG_LIST="
 253     external_build
 254     install_docs
 255     install_bins
 256     install_libs
 257     install_srcs
 258     debug
 259     gprof
 260     gcov
 261     rvct
 262     gcc
 263     msvs
 264     pic
 265     big_endian
 266
 267     codec_srcs
 268     debug_libs
 269     fast_unaligned
 270     mem_manager
 271     mem_tracker
 272     mem_checks
 273     md5
 274
 275     dequant_tokens
 276     dc_recon
 277     runtime_cpu_detect
 278     postproc
 279     multithread
 280     internal_stats
 281     ${CODECS}
 282     ${CODEC_FAMILIES}
 283     encoders
 284     decoders
 285     static_msvcrt
 286     spatial_resampling
 287     realtime_only
 288     onthefly_bitpacking
 289     error_concealment
 290     shared
 291     static
 292     small
 293     postproc_visualizer
 294     os_support
 295     unit_tests
 296     multi_res_encoding
 297     temporal_denoising
 298     experimental
 299     decrypt
 300     ${EXPERIMENT_LIST}
 301 "
 302 CMDLINE_SELECT="
 303     external_build
 304     extra_warnings
 305     werror
 306     install_docs
 307     install_bins
 308     install_libs
 309     install_srcs
 310     debug
 311     gprof
 312     gcov
 313     pic
 314     optimizations
 315     ccache
 316     runtime_cpu_detect
 317
 318     libs
 319     examples
 320     docs
 321     libc
 322     as
 323     fast_unaligned
 324     codec_srcs
 325     debug_libs
 326     md5
 327
 328     dequant_tokens
 329     dc_recon
 330     postproc
 331     multithread
 332     internal_stats
 333     ${CODECS}
 334     ${CODEC_FAMILIES}
 335     static_msvcrt
 336     mem_tracker
 337     spatial_resampling
 338     realtime_only
 339     onthefly_bitpacking
 340     error_concealment
 341     shared
 342     static
 343     small
 344     postproc_visualizer
 345     unit_tests
 346     multi_res_encoding
 347     temporal_denoising
 348     experimental
 349     decrypt
 350 "
 351
 352 process_cmdline() {
 353     for opt do
 354         optval="${opt#*=}"
 355         case "$opt" in
 356         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 357         --enable-?*|--disable-?*)
 358         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 359         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 360             if enabled experimental; then
 361                 $action $option
 362             else
 363                 log_echo "Ignoring $opt -- not in experimental mode."
 364             fi
 365         else
 366             process_common_cmdline $opt
 367         fi
 368         ;;
 369         *) process_common_cmdline "$opt"
 370         ;;
 371         esac
 372     done
 373 }
 374
 375 post_process_cmdline() {
 376     local c
 377
 378     # If the codec family is disabled, disable all components of that family.
 379     # If the codec family is enabled, enable all components of that family.
 380     log_echo "Configuring selected codecs"
 381     for c in ${CODECS}; do
 382         disabled ${c%%_*} && disable ${c}
 383         enabled ${c%%_*} && enable ${c}
 384     done
 385
 386     # Enable all detected codecs, if they haven't been disabled
 387     for c in ${CODECS}; do soft_enable $c; done
 388
 389     # Enable the codec family if any component of that family is enabled
 390     for c in ${CODECS}; do
 391         enabled $c && enable ${c%_*}
 392     done
 393
 394     # Set the {en,de}coders variable if any algorithm in that class is enabled
 395     for c in ${CODECS}; do
 396         enabled ${c} && enable ${c##*_}s
 397     done
 398 }
 399
 400
 401 process_targets() {
 402     enabled child || write_common_config_banner
 403     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 404
 405     # TODO: add host tools target (obj_int_extract, etc)
 406
 407     # For fat binaries, call configure recursively to configure for each
 408     # binary architecture to be included.
 409     if enabled universal; then
 410         # Call configure (ourselves) for each subarchitecture
 411         for arch in $fat_bin_archs; do
 412             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 413         done
 414     fi
 415
 416     # The write_common_config (config.mk) logic is deferred until after the
 417     # recursive calls to configure complete, becuase we want our universal
 418     # targets to be executed last.
 419     write_common_config_targets
 420     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 421
 422     # Calculate the default distribution name, based on the enabled features
 423     local cf
 424     local 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="${DIST_DIR}-src"
 436     ! enabled postproc && DIST_DIR="${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 "${source_path}/build/make/version.sh" ]; then
 446         local ver=`"$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?=${CONFIGURE_ARGS}" >> config.mk
 475
 476     #
 477     # Write makefiles for all enabled targets
 478     #
 479     for tgt in libs examples docs solution; do
 480         local tgt_fn="$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         if ! enabled linux; then
 497             if enabled gnu; then
 498                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 499             else
 500                 die "--enable-shared only supported on ELF for now"
 501             fi
 502         fi
 503     fi
 504     if [ -z "$CC" ] || enabled external_build; then
 505         echo "Bypassing toolchain for environment detection."
 506         enable external_build
 507         check_header() {
 508             log fake_check_header "$@"
 509             header=$1
 510             shift
 511             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 512             disable $var
 513             # Headers common to all environments
 514             case $header in
 515                 stdio.h)
 516                     true;
 517                 ;;
 518                 *)
 519                     local result=false
 520                     for d in "$@"; do
 521                         [ -f "${d##-I}/$header" ] && result=true && break
 522                     done
 523                     ${result:-true}
 524             esac && enable $var
 525
 526             # Specialize windows and POSIX environments.
 527             case $toolchain in
 528                 *-win*-*)
 529                     case $header-$toolchain in
 530                         stdint*-gcc) true;;
 531                         *) false;;
 532                     esac && enable $var
 533                     ;;
 534                 *)
 535                     case $header in
 536                         stdint.h) true;;
 537                         pthread.h) true;;
 538                         sys/mman.h) true;;
 539                         unistd.h) true;;
 540                         *) false;;
 541                     esac && enable $var
 542             esac
 543             enabled $var
 544         }
 545         check_ld() {
 546             true
 547         }
 548     fi
 549     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 550     check_ld <<EOF || die "Toolchain is unable to link executables"
 551 int main(void) {return 0;}
 552 EOF
 553     # check system headers
 554     check_header stdint.h
 555     check_header pthread.h
 556     check_header sys/mman.h
 557     check_header unistd.h # for sysconf(3) and friends.
 558
 559     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 560 }
 561
 562 process_toolchain() {
 563     process_common_toolchain
 564
 565     # Handle universal binaries for this architecture
 566     case $toolchain in
 567         universal-darwin*)
 568             local darwin_ver=${tgt_os##darwin}
 569
 570             # Snow Leopard (10.6/darwin10) dropped support for PPC
 571             # Include PPC support for all prior versions
 572             if [ $darwin_ver -lt 10 ]; then
 573                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 574             fi
 575
 576             # Tiger (10.4/darwin8) brought support for x86
 577             if [ $darwin_ver -ge 8 ]; then
 578                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 579             fi
 580
 581             # Leopard (10.5/darwin9) brought 64 bit support
 582             if [ $darwin_ver -ge 9 ]; then
 583                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 584             fi
 585             ;;
 586     esac
 587
 588
 589     # Enable some useful compiler flags
 590     if enabled gcc; then
 591         enabled werror && check_add_cflags -Werror
 592         check_add_cflags -Wall
 593         check_add_cflags -Wdeclaration-after-statement
 594         check_add_cflags -Wdisabled-optimization
 595         check_add_cflags -Wpointer-arith
 596         check_add_cflags -Wtype-limits
 597         check_add_cflags -Wcast-qual
 598         check_add_cflags -Wvla
 599         check_add_cflags -Wimplicit-function-declaration
 600         check_add_cflags -Wuninitialized
 601         check_add_cflags -Wunused-variable
 602         case ${CC} in
 603           *clang*) ;;
 604           *) check_add_cflags -Wunused-but-set-variable ;;
 605         esac
 606         enabled extra_warnings || check_add_cflags -Wno-unused-function
 607     fi
 608
 609     if enabled icc; then
 610         enabled werror && check_add_cflags -Werror
 611         check_add_cflags -Wall
 612         check_add_cflags -Wpointer-arith
 613
 614         # ICC has a number of floating point optimizations that we disable
 615         # in favor of deterministic output WRT to other compilers
 616         add_cflags -fp-model precise
 617     fi
 618
 619     # Enable extra, harmless warnings. These might provide additional insight
 620     # to what the compiler is doing and why, but in general, but they shouldn't
 621     # be treated as fatal, even if we're treating warnings as errors.
 622     GCC_EXTRA_WARNINGS="
 623         -Wdisabled-optimization
 624         -Winline
 625     "
 626     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 627     RVCT_EXTRA_WARNINGS="
 628         --remarks
 629     "
 630     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 631     if enabled extra_warnings; then
 632         for w in ${EXTRA_WARNINGS}; do
 633             check_add_cflags ${w}
 634             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 635         done
 636     fi
 637
 638     # ccache only really works on gcc toolchains
 639     enabled gcc || soft_disable ccache
 640     if enabled mips; then
 641         enable dequant_tokens
 642         enable dc_recon
 643     fi
 644
 645     # Enable the postbuild target if building for visual studio.
 646     case "$tgt_cc" in
 647         vs*) enable msvs
 648              enable solution
 649              vs_version=${tgt_cc##vs}
 650              all_targets="${all_targets} solution"
 651              INLINE="__forceinline"
 652         ;;
 653     esac
 654
 655     # Other toolchain specific defaults
 656     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 657
 658     if enabled postproc_visualizer; then
 659         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 660     fi
 661
 662     # Enable unit tests by default if we have a working C++ compiler.
 663     case "$toolchain" in
 664         *-vs*)
 665             soft_enable unit_tests
 666         ;;
 667         *-android-*)
 668             # GTestLog must be modified to use Android logging utilities.
 669         ;;
 670         *-darwin-*)
 671             # iOS/ARM builds do not work with gtest. This does not match
 672             # x86 targets.
 673         ;;
 674         *)
 675             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 676 int z;
 677 EOF
 678         ;;
 679     esac
 680 }
 681
 682
 683 ##
 684 ## END APPLICATION SPECIFIC CONFIGURATION
 685 ##
 686 CONFIGURE_ARGS="$@"
 687 process "$@"
 688 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 689 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 690 static const char* const cfg = "$CONFIGURE_ARGS";
 691 const char *vpx_codec_build_config(void) {return cfg;}
 692 EOF