src/third_party/libvpx/source/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   --libc=PATH                     path to alternate libc
  30   --size-limit=WxH                max size to allow in the decoder
  31   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  32   --sdk-path=PATH                 path to root of sdk (android builds only)
  33   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  34                                   supported by hardware [auto]
  35   ${toggle_codec_srcs}            in/exclude codec library source code
  36   ${toggle_debug_libs}            in/exclude debug version of libraries
  37   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  38   ${toggle_vp8}                   VP8 codec support
  39   ${toggle_vp9}                   VP9 codec support
  40   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  41   ${toggle_mem_tracker}           track memory usage
  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_webm_io}               enable input from and output to WebM container
  60   ${toggle_libyuv}                enable libyuv
  61
  62 Codecs:
  63   Codecs can be selectively enabled or disabled individually, or by family:
  64       --disable-<codec>
  65   is equivalent to:
  66       --disable-<codec>-encoder
  67       --disable-<codec>-decoder
  68
  69   Codecs available in this distribution:
  70 EOF
  71 #restore editor state '
  72
  73     family="";
  74     last_family="";
  75     c="";
  76     str="";
  77     for c in ${CODECS}; do
  78         family=${c%_*}
  79         if [ "${family}" != "${last_family}" ]; then
  80             [ -z "${str}" ] || echo "${str}"
  81             str="$(printf '    %10s:' ${family})"
  82         fi
  83         str="${str} $(printf '%10s' ${c#*_})"
  84         last_family=${family}
  85     done
  86     echo "${str}"
  87     show_help_post
  88 }
  89
  90 ##
  91 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  92 ##
  93
  94 # all_platforms is a list of all supported target platforms. Maintain
  95 # alphabetically by architecture, generic-gnu last.
  96 all_platforms="${all_platforms} armv5te-android-gcc"
  97 all_platforms="${all_platforms} armv5te-linux-rvct"
  98 all_platforms="${all_platforms} armv5te-linux-gcc"
  99 all_platforms="${all_platforms} armv5te-none-rvct"
 100 all_platforms="${all_platforms} armv6-darwin-gcc"
 101 all_platforms="${all_platforms} armv6-linux-rvct"
 102 all_platforms="${all_platforms} armv6-linux-gcc"
 103 all_platforms="${all_platforms} armv6-none-rvct"
 104 all_platforms="${all_platforms} arm64-darwin-gcc"
 105 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
 106 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
 107 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 108 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 109 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 110 all_platforms="${all_platforms} armv7-win32-vs11"
 111 all_platforms="${all_platforms} armv7-win32-vs12"
 112 all_platforms="${all_platforms} armv7s-darwin-gcc"
 113 all_platforms="${all_platforms} mips32-linux-gcc"
 114 all_platforms="${all_platforms} mips64-linux-gcc"
 115 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 116 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 117 all_platforms="${all_platforms} ppc32-linux-gcc"
 118 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 119 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 120 all_platforms="${all_platforms} ppc64-linux-gcc"
 121 all_platforms="${all_platforms} sparc-solaris-gcc"
 122 all_platforms="${all_platforms} x86-android-gcc"
 123 all_platforms="${all_platforms} x86-darwin8-gcc"
 124 all_platforms="${all_platforms} x86-darwin8-icc"
 125 all_platforms="${all_platforms} x86-darwin9-gcc"
 126 all_platforms="${all_platforms} x86-darwin9-icc"
 127 all_platforms="${all_platforms} x86-darwin10-gcc"
 128 all_platforms="${all_platforms} x86-darwin11-gcc"
 129 all_platforms="${all_platforms} x86-darwin12-gcc"
 130 all_platforms="${all_platforms} x86-darwin13-gcc"
 131 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 132 all_platforms="${all_platforms} x86-linux-gcc"
 133 all_platforms="${all_platforms} x86-linux-icc"
 134 all_platforms="${all_platforms} x86-os2-gcc"
 135 all_platforms="${all_platforms} x86-solaris-gcc"
 136 all_platforms="${all_platforms} x86-win32-gcc"
 137 all_platforms="${all_platforms} x86-win32-vs7"
 138 all_platforms="${all_platforms} x86-win32-vs8"
 139 all_platforms="${all_platforms} x86-win32-vs9"
 140 all_platforms="${all_platforms} x86-win32-vs10"
 141 all_platforms="${all_platforms} x86-win32-vs11"
 142 all_platforms="${all_platforms} x86-win32-vs12"
 143 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 144 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 145 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 146 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 147 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 148 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 149 all_platforms="${all_platforms} x86_64-linux-gcc"
 150 all_platforms="${all_platforms} x86_64-linux-icc"
 151 all_platforms="${all_platforms} x86_64-solaris-gcc"
 152 all_platforms="${all_platforms} x86_64-win64-gcc"
 153 all_platforms="${all_platforms} x86_64-win64-vs8"
 154 all_platforms="${all_platforms} x86_64-win64-vs9"
 155 all_platforms="${all_platforms} x86_64-win64-vs10"
 156 all_platforms="${all_platforms} x86_64-win64-vs11"
 157 all_platforms="${all_platforms} x86_64-win64-vs12"
 158 all_platforms="${all_platforms} universal-darwin8-gcc"
 159 all_platforms="${all_platforms} universal-darwin9-gcc"
 160 all_platforms="${all_platforms} universal-darwin10-gcc"
 161 all_platforms="${all_platforms} universal-darwin11-gcc"
 162 all_platforms="${all_platforms} universal-darwin12-gcc"
 163 all_platforms="${all_platforms} universal-darwin13-gcc"
 164 all_platforms="${all_platforms} generic-gnu"
 165
 166 # all_targets is a list of all targets that can be configured
 167 # note that these should be in dependency order for now.
 168 all_targets="libs examples docs"
 169
 170 # all targets available are enabled, by default.
 171 for t in ${all_targets}; do
 172     [ -f "${source_path}/${t}.mk" ] && enable_feature ${t}
 173 done
 174
 175 if ! perl --version >/dev/null; then
 176     die "Perl is required to build"
 177 fi
 178
 179
 180 if [ "`cd \"${source_path}\" && pwd`" != "`pwd`" ]; then
 181   # test to see if source_path already configured
 182   if [ -f "${source_path}/vpx_config.h" ]; then
 183     die "source directory already configured; run 'make distclean' there first"
 184   fi
 185 fi
 186
 187 # check installed doxygen version
 188 doxy_version=$(doxygen --version 2>/dev/null)
 189 doxy_major=${doxy_version%%.*}
 190 if [ ${doxy_major:-0} -ge 1 ]; then
 191     doxy_version=${doxy_version#*.}
 192     doxy_minor=${doxy_version%%.*}
 193     doxy_patch=${doxy_version##*.}
 194
 195     [ $doxy_major -gt 1 ] && enable_feature doxygen
 196     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 197     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 198 fi
 199
 200 # install everything except the sources, by default. sources will have
 201 # to be enabled when doing dist builds, since that's no longer a common
 202 # case.
 203 enabled doxygen && enable_feature install_docs
 204 enable_feature install_bins
 205 enable_feature install_libs
 206
 207 enable_feature static
 208 enable_feature optimizations
 209 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 210 enable_feature spatial_resampling
 211 enable_feature multithread
 212 enable_feature os_support
 213 enable_feature temporal_denoising
 214
 215 [ -d "${source_path}/../include" ] && enable_feature alt_tree_layout
 216 for d in vp8 vp9; do
 217     [ -d "${source_path}/${d}" ] && disable_feature alt_tree_layout;
 218 done
 219
 220 if ! enabled alt_tree_layout; then
 221 # development environment
 222 [ -d "${source_path}/vp8" ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 223 [ -d "${source_path}/vp9" ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 224 else
 225 # customer environment
 226 [ -f "${source_path}/../include/vpx/vp8cx.h" ] && CODECS="${CODECS} vp8_encoder"
 227 [ -f "${source_path}/../include/vpx/vp8dx.h" ] && CODECS="${CODECS} vp8_decoder"
 228 [ -f "${source_path}/../include/vpx/vp9cx.h" ] && CODECS="${CODECS} vp9_encoder"
 229 [ -f "${source_path}/../include/vpx/vp9dx.h" ] && CODECS="${CODECS} vp9_decoder"
 230 [ -f "${source_path}/../include/vpx/vp8cx.h" ] || disable_feature vp8_encoder
 231 [ -f "${source_path}/../include/vpx/vp8dx.h" ] || disable_feature vp8_decoder
 232 [ -f "${source_path}/../include/vpx/vp9cx.h" ] || disable_feature vp9_encoder
 233 [ -f "${source_path}/../include/vpx/vp9dx.h" ] || disable_feature vp9_decoder
 234
 235 [ -f "${source_path}/../lib/*/*mt.lib" ] && soft_enable static_msvcrt
 236 fi
 237
 238 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 239 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 240
 241 ARCH_LIST="
 242     arm
 243     mips
 244     x86
 245     x86_64
 246     ppc32
 247     ppc64
 248 "
 249 ARCH_EXT_LIST="
 250     edsp
 251     media
 252     neon
 253     neon_asm
 254
 255     mips32
 256     dspr2
 257
 258     mips64
 259
 260     mmx
 261     sse
 262     sse2
 263     sse3
 264     ssse3
 265     sse4_1
 266     avx
 267     avx2
 268
 269     altivec
 270 "
 271 HAVE_LIST="
 272     ${ARCH_EXT_LIST}
 273     vpx_ports
 274     stdint_h
 275     alt_tree_layout
 276     pthread_h
 277     sys_mman_h
 278     unistd_h
 279 "
 280 EXPERIMENT_LIST="
 281     spatial_svc
 282     vp9_temporal_denoising
 283     fp_mb_stats
 284     emulate_hardware_highbitdepth
 285 "
 286 CONFIG_LIST="
 287     external_build
 288     install_docs
 289     install_bins
 290     install_libs
 291     install_srcs
 292     use_x86inc
 293     debug
 294     gprof
 295     gcov
 296     rvct
 297     gcc
 298     msvs
 299     pic
 300     big_endian
 301
 302     codec_srcs
 303     debug_libs
 304     fast_unaligned
 305     mem_manager
 306     mem_tracker
 307     mem_checks
 308
 309     dequant_tokens
 310     dc_recon
 311     runtime_cpu_detect
 312     postproc
 313     vp9_postproc
 314     multithread
 315     internal_stats
 316     ${CODECS}
 317     ${CODEC_FAMILIES}
 318     encoders
 319     decoders
 320     static_msvcrt
 321     spatial_resampling
 322     realtime_only
 323     onthefly_bitpacking
 324     error_concealment
 325     shared
 326     static
 327     small
 328     postproc_visualizer
 329     os_support
 330     unit_tests
 331     webm_io
 332     libyuv
 333     decode_perf_tests
 334     encode_perf_tests
 335     multi_res_encoding
 336     temporal_denoising
 337     coefficient_range_checking
 338     vp9_highbitdepth
 339     experimental
 340     size_limit
 341     ${EXPERIMENT_LIST}
 342 "
 343 CMDLINE_SELECT="
 344     external_build
 345     extra_warnings
 346     werror
 347     install_docs
 348     install_bins
 349     install_libs
 350     install_srcs
 351     debug
 352     gprof
 353     gcov
 354     pic
 355     use_x86inc
 356     optimizations
 357     ccache
 358     runtime_cpu_detect
 359     thumb
 360
 361     libs
 362     examples
 363     docs
 364     libc
 365     as
 366     size_limit
 367     fast_unaligned
 368     codec_srcs
 369     debug_libs
 370
 371     dequant_tokens
 372     dc_recon
 373     postproc
 374     vp9_postproc
 375     multithread
 376     internal_stats
 377     ${CODECS}
 378     ${CODEC_FAMILIES}
 379     static_msvcrt
 380     mem_tracker
 381     spatial_resampling
 382     realtime_only
 383     onthefly_bitpacking
 384     error_concealment
 385     shared
 386     static
 387     small
 388     postproc_visualizer
 389     unit_tests
 390     webm_io
 391     libyuv
 392     decode_perf_tests
 393     encode_perf_tests
 394     multi_res_encoding
 395     temporal_denoising
 396     coefficient_range_checking
 397     vp9_highbitdepth
 398     experimental
 399 "
 400
 401 process_cmdline() {
 402     for opt do
 403         optval="${opt#*=}"
 404         case "$opt" in
 405         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 406         --enable-?*|--disable-?*)
 407         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 408         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 409             if enabled experimental; then
 410                 ${action}_feature $option
 411             else
 412                 log_echo "Ignoring $opt -- not in experimental mode."
 413             fi
 414         else
 415             process_common_cmdline $opt
 416         fi
 417         ;;
 418         *) process_common_cmdline "$opt"
 419         ;;
 420         esac
 421     done
 422 }
 423
 424 post_process_cmdline() {
 425     c=""
 426
 427     # If the codec family is disabled, disable all components of that family.
 428     # If the codec family is enabled, enable all components of that family.
 429     log_echo "Configuring selected codecs"
 430     for c in ${CODECS}; do
 431         disabled ${c%%_*} && disable_feature ${c}
 432         enabled ${c%%_*} && enable_feature ${c}
 433     done
 434
 435     # Enable all detected codecs, if they haven't been disabled
 436     for c in ${CODECS}; do soft_enable $c; done
 437
 438     # Enable the codec family if any component of that family is enabled
 439     for c in ${CODECS}; do
 440         enabled $c && enable_feature ${c%_*}
 441     done
 442
 443     # Set the {en,de}coders variable if any algorithm in that class is enabled
 444     for c in ${CODECS}; do
 445         enabled ${c} && enable_feature ${c##*_}s
 446     done
 447 }
 448
 449
 450 process_targets() {
 451     enabled child || write_common_config_banner
 452     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 453
 454     # TODO: add host tools target (obj_int_extract, etc)
 455
 456     # For fat binaries, call configure recursively to configure for each
 457     # binary architecture to be included.
 458     if enabled universal; then
 459         # Call configure (ourselves) for each subarchitecture
 460         for arch in $fat_bin_archs; do
 461             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 462         done
 463     fi
 464
 465     # The write_common_config (config.mk) logic is deferred until after the
 466     # recursive calls to configure complete, because we want our universal
 467     # targets to be executed last.
 468     write_common_config_targets
 469     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 470
 471     # Calculate the default distribution name, based on the enabled features
 472     cf=""
 473     DIST_DIR=vpx
 474     for cf in $CODEC_FAMILIES; do
 475         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 476             DIST_DIR="${DIST_DIR}-${cf}"
 477         elif enabled ${cf}_encoder; then
 478             DIST_DIR="${DIST_DIR}-${cf}cx"
 479         elif enabled ${cf}_decoder; then
 480             DIST_DIR="${DIST_DIR}-${cf}dx"
 481         fi
 482     done
 483     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 484     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 485     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 486     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 487     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 488     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 489     case "${tgt_os}" in
 490     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 491           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 492           ;;
 493     esac
 494     if [ -f "${source_path}/build/make/version.sh" ]; then
 495         ver=`"$source_path/build/make/version.sh" --bare "$source_path"`
 496         DIST_DIR="${DIST_DIR}-${ver}"
 497         VERSION_STRING=${ver}
 498         ver=${ver%%-*}
 499         VERSION_PATCH=${ver##*.}
 500         ver=${ver%.*}
 501         VERSION_MINOR=${ver##*.}
 502         ver=${ver#v}
 503         VERSION_MAJOR=${ver%.*}
 504     fi
 505     enabled child || cat <<EOF >> config.mk
 506
 507 PREFIX=${prefix}
 508 ifeq (\$(MAKECMDGOALS),dist)
 509 DIST_DIR?=${DIST_DIR}
 510 else
 511 DIST_DIR?=\$(DESTDIR)${prefix}
 512 endif
 513 LIBSUBDIR=${libdir##${prefix}/}
 514
 515 VERSION_STRING=${VERSION_STRING}
 516
 517 VERSION_MAJOR=${VERSION_MAJOR}
 518 VERSION_MINOR=${VERSION_MINOR}
 519 VERSION_PATCH=${VERSION_PATCH}
 520
 521 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 522 EOF
 523     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 524
 525     #
 526     # Write makefiles for all enabled targets
 527     #
 528     for tgt in libs examples docs solution; do
 529         tgt_fn="$tgt-$toolchain.mk"
 530
 531         if enabled $tgt; then
 532             echo "Creating makefiles for ${toolchain} ${tgt}"
 533             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 534             #write_${tgt}_config
 535         fi
 536     done
 537
 538 }
 539
 540 process_detect() {
 541     if enabled shared; then
 542         # Can only build shared libs on a subset of platforms. Doing this check
 543         # here rather than at option parse time because the target auto-detect
 544         # magic happens after the command line has been parsed.
 545         if ! enabled linux; then
 546             if enabled gnu; then
 547                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 548             else
 549                 die "--enable-shared only supported on ELF for now"
 550             fi
 551         fi
 552     fi
 553     if [ -z "$CC" ] || enabled external_build; then
 554         echo "Bypassing toolchain for environment detection."
 555         enable_feature external_build
 556         check_header() {
 557             log fake_check_header "$@"
 558             header=$1
 559             shift
 560             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 561             disable_feature $var
 562             # Headers common to all environments
 563             case $header in
 564                 stdio.h)
 565                     true;
 566                 ;;
 567                 *)
 568                     result=false
 569                     for d in "$@"; do
 570                         [ -f "${d##-I}/$header" ] && result=true && break
 571                     done
 572                     ${result:-true}
 573             esac && enable_feature $var
 574
 575             # Specialize windows and POSIX environments.
 576             case $toolchain in
 577                 *-win*-*)
 578                     case $header-$toolchain in
 579                         stdint*-gcc) true;;
 580                         *) false;;
 581                     esac && enable_feature $var
 582                     ;;
 583                 *)
 584                     case $header in
 585                         stdint.h) true;;
 586                         pthread.h) true;;
 587                         sys/mman.h) true;;
 588                         unistd.h) true;;
 589                         *) false;;
 590                     esac && enable_feature $var
 591             esac
 592             enabled $var
 593         }
 594         check_ld() {
 595             true
 596         }
 597     fi
 598     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 599     check_ld <<EOF || die "Toolchain is unable to link executables"
 600 int main(void) {return 0;}
 601 EOF
 602     # check system headers
 603     check_header stdint.h
 604     check_header pthread.h
 605     check_header sys/mman.h
 606     check_header unistd.h # for sysconf(3) and friends.
 607
 608     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 609 }
 610
 611 process_toolchain() {
 612     process_common_toolchain
 613
 614     # Handle universal binaries for this architecture
 615     case $toolchain in
 616         universal-darwin*)
 617             darwin_ver=${tgt_os##darwin}
 618
 619             # Snow Leopard (10.6/darwin10) dropped support for PPC
 620             # Include PPC support for all prior versions
 621             if [ $darwin_ver -lt 10 ]; then
 622                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 623             fi
 624
 625             # Tiger (10.4/darwin8) brought support for x86
 626             if [ $darwin_ver -ge 8 ]; then
 627                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 628             fi
 629
 630             # Leopard (10.5/darwin9) brought 64 bit support
 631             if [ $darwin_ver -ge 9 ]; then
 632                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 633             fi
 634             ;;
 635     esac
 636
 637
 638     # Enable some useful compiler flags
 639     if enabled gcc; then
 640         enabled werror && check_add_cflags -Werror
 641         check_add_cflags -Wall
 642         check_add_cflags -Wdeclaration-after-statement
 643         check_add_cflags -Wdisabled-optimization
 644         check_add_cflags -Wpointer-arith
 645         check_add_cflags -Wtype-limits
 646         check_add_cflags -Wcast-qual
 647         check_add_cflags -Wvla
 648         check_add_cflags -Wimplicit-function-declaration
 649         check_add_cflags -Wuninitialized
 650         check_add_cflags -Wunused-variable
 651         case ${CC} in
 652           *clang*)
 653               # libvpx and/or clang have issues with aliasing:
 654               # https://code.google.com/p/webm/issues/detail?id=603
 655               # work around them until they are fixed
 656               check_add_cflags -fno-strict-aliasing
 657           ;;
 658           *) check_add_cflags -Wunused-but-set-variable ;;
 659         esac
 660         enabled extra_warnings || check_add_cflags -Wno-unused-function
 661     fi
 662
 663     if enabled icc; then
 664         enabled werror && check_add_cflags -Werror
 665         check_add_cflags -Wall
 666         check_add_cflags -Wpointer-arith
 667
 668         # ICC has a number of floating point optimizations that we disable
 669         # in favor of deterministic output WRT to other compilers
 670         add_cflags -fp-model precise
 671     fi
 672
 673     # Enable extra, harmless warnings. These might provide additional insight
 674     # to what the compiler is doing and why, but in general, but they shouldn't
 675     # be treated as fatal, even if we're treating warnings as errors.
 676     GCC_EXTRA_WARNINGS="
 677         -Wdisabled-optimization
 678         -Winline
 679     "
 680     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 681     RVCT_EXTRA_WARNINGS="
 682         --remarks
 683     "
 684     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 685     if enabled extra_warnings; then
 686         for w in ${EXTRA_WARNINGS}; do
 687             check_add_cflags ${w}
 688             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 689         done
 690     fi
 691
 692     # ccache only really works on gcc toolchains
 693     enabled gcc || soft_disable ccache
 694     if enabled mips; then
 695         enable_feature dequant_tokens
 696         enable_feature dc_recon
 697     fi
 698
 699     if enabled internal_stats; then
 700         enable_feature vp9_postproc
 701     fi
 702
 703     # Enable the postbuild target if building for visual studio.
 704     case "$tgt_cc" in
 705         vs*) enable_feature msvs
 706              enable_feature solution
 707              vs_version=${tgt_cc##vs}
 708              case $vs_version in
 709              [789])
 710                  VCPROJ_SFX=vcproj
 711                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 712                  ;;
 713              10|11|12)
 714                  VCPROJ_SFX=vcxproj
 715                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 716                  enabled werror && gen_vcproj_cmd="${gen_vcproj_cmd} --enable-werror"
 717                  ;;
 718              esac
 719              all_targets="${all_targets} solution"
 720              INLINE="__forceinline"
 721         ;;
 722     esac
 723
 724     # Other toolchain specific defaults
 725     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 726
 727     if enabled postproc_visualizer; then
 728         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 729     fi
 730
 731     # Enable unit tests by default if we have a working C++ compiler.
 732     case "$toolchain" in
 733         *-vs*)
 734             soft_enable unit_tests
 735             soft_enable webm_io
 736             soft_enable libyuv
 737         ;;
 738         *-android-*)
 739             soft_enable webm_io
 740             soft_enable libyuv
 741             # GTestLog must be modified to use Android logging utilities.
 742         ;;
 743         *-darwin-*)
 744             # iOS/ARM builds do not work with gtest. This does not match
 745             # x86 targets.
 746         ;;
 747         *-iphonesimulator-*)
 748             soft_enable webm_io
 749             soft_enable libyuv
 750         ;;
 751         *-win*)
 752             # Some mingw toolchains don't have pthread available by default.
 753             # Treat these more like visual studio where threading in gtest
 754             # would be disabled for the same reason.
 755             check_cxx "$@" <<EOF && soft_enable unit_tests
 756 int z;
 757 EOF
 758             check_cxx "$@" <<EOF && soft_enable webm_io
 759 int z;
 760 EOF
 761             check_cxx "$@" <<EOF && soft_enable libyuv
 762 int z;
 763 EOF
 764         ;;
 765         *)
 766             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 767 int z;
 768 EOF
 769             check_cxx "$@" <<EOF && soft_enable webm_io
 770 int z;
 771 EOF
 772             check_cxx "$@" <<EOF && soft_enable libyuv
 773 int z;
 774 EOF
 775         ;;
 776     esac
 777     # libwebm needs to be linked with C++ standard library
 778     enabled webm_io && LD=${CXX}
 779 }
 780
 781
 782 ##
 783 ## END APPLICATION SPECIFIC CONFIGURATION
 784 ##
 785 CONFIGURE_ARGS="$@"
 786 process "$@"
 787 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 788 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 789 static const char* const cfg = "$CONFIGURE_ARGS";
 790 const char *vpx_codec_build_config(void) {return cfg;}
 791 EOF