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   --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_vp9_postproc}          vp9 specific postprocessing
  42   ${toggle_multithread}           multithreaded encoding and decoding
  43   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  44   ${toggle_realtime_only}         enable this option while building for real-time encoding
  45   ${toggle_onthefly_bitpacking}   enable on-the-fly bitpacking in real-time encoding
  46   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  47   ${toggle_runtime_cpu_detect}    runtime cpu detection
  48   ${toggle_shared}                shared library support
  49   ${toggle_static}                static library support
  50   ${toggle_small}                 favor smaller size over speed
  51   ${toggle_postproc_visualizer}   macro block / block level visualizers
  52   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  53   ${toggle_temporal_denoising}    enable temporal denoising and disable the spatial denoiser
  54
  55 Codecs:
  56   Codecs can be selectively enabled or disabled individually, or by family:
  57       --disable-<codec>
  58   is equivalent to:
  59       --disable-<codec>-encoder
  60       --disable-<codec>-decoder
  61
  62   Codecs available in this distribution:
  63 EOF
  64 #restore editor state '
  65
  66     local family;
  67     local last_family;
  68     local c;
  69     local str;
  70     for c in ${CODECS}; do
  71         family=${c%_*}
  72         if [ "${family}" != "${last_family}" ]; then
  73             [ -z "${str}" ] || echo "${str}"
  74             str="$(printf '    %10s:' ${family})"
  75         fi
  76         str="${str} $(printf '%10s' ${c#*_})"
  77         last_family=${family}
  78     done
  79     echo "${str}"
  80     show_help_post
  81 }
  82
  83 ##
  84 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  85 ##
  86
  87 # all_platforms is a list of all supported target platforms. Maintain
  88 # alphabetically by architecture, generic-gnu last.
  89 all_platforms="${all_platforms} armv5te-android-gcc"
  90 all_platforms="${all_platforms} armv5te-linux-rvct"
  91 all_platforms="${all_platforms} armv5te-linux-gcc"
  92 all_platforms="${all_platforms} armv5te-none-rvct"
  93 all_platforms="${all_platforms} armv6-darwin-gcc"
  94 all_platforms="${all_platforms} armv6-linux-rvct"
  95 all_platforms="${all_platforms} armv6-linux-gcc"
  96 all_platforms="${all_platforms} armv6-none-rvct"
  97 all_platforms="${all_platforms} armv7-android-gcc"   #neon Cortex-A8
  98 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  99 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
 100 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
 101 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 102 all_platforms="${all_platforms} armv7-win32-vs11"
 103 all_platforms="${all_platforms} mips32-linux-gcc"
 104 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 105 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 106 all_platforms="${all_platforms} ppc32-linux-gcc"
 107 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 108 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 109 all_platforms="${all_platforms} ppc64-linux-gcc"
 110 all_platforms="${all_platforms} sparc-solaris-gcc"
 111 all_platforms="${all_platforms} x86-android-gcc"
 112 all_platforms="${all_platforms} x86-darwin8-gcc"
 113 all_platforms="${all_platforms} x86-darwin8-icc"
 114 all_platforms="${all_platforms} x86-darwin9-gcc"
 115 all_platforms="${all_platforms} x86-darwin9-icc"
 116 all_platforms="${all_platforms} x86-darwin10-gcc"
 117 all_platforms="${all_platforms} x86-darwin11-gcc"
 118 all_platforms="${all_platforms} x86-darwin12-gcc"
 119 all_platforms="${all_platforms} x86-darwin13-gcc"
 120 all_platforms="${all_platforms} x86-linux-gcc"
 121 all_platforms="${all_platforms} x86-linux-icc"
 122 all_platforms="${all_platforms} x86-os2-gcc"
 123 all_platforms="${all_platforms} x86-solaris-gcc"
 124 all_platforms="${all_platforms} x86-win32-gcc"
 125 all_platforms="${all_platforms} x86-win32-vs7"
 126 all_platforms="${all_platforms} x86-win32-vs8"
 127 all_platforms="${all_platforms} x86-win32-vs9"
 128 all_platforms="${all_platforms} x86-win32-vs10"
 129 all_platforms="${all_platforms} x86-win32-vs11"
 130 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 131 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 132 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 133 all_platforms="${all_platforms} x86_64-darwin12-gcc"
 134 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 135 all_platforms="${all_platforms} x86_64-linux-gcc"
 136 all_platforms="${all_platforms} x86_64-linux-icc"
 137 all_platforms="${all_platforms} x86_64-solaris-gcc"
 138 all_platforms="${all_platforms} x86_64-win64-gcc"
 139 all_platforms="${all_platforms} x86_64-win64-vs8"
 140 all_platforms="${all_platforms} x86_64-win64-vs9"
 141 all_platforms="${all_platforms} x86_64-win64-vs10"
 142 all_platforms="${all_platforms} x86_64-win64-vs11"
 143 all_platforms="${all_platforms} universal-darwin8-gcc"
 144 all_platforms="${all_platforms} universal-darwin9-gcc"
 145 all_platforms="${all_platforms} universal-darwin10-gcc"
 146 all_platforms="${all_platforms} universal-darwin11-gcc"
 147 all_platforms="${all_platforms} universal-darwin12-gcc"
 148 all_platforms="${all_platforms} universal-darwin13-gcc"
 149 all_platforms="${all_platforms} generic-gnu"
 150
 151 # all_targets is a list of all targets that can be configured
 152 # note that these should be in dependency order for now.
 153 all_targets="libs examples docs"
 154
 155 # all targets available are enabled, by default.
 156 for t in ${all_targets}; do
 157     [ -f ${source_path}/${t}.mk ] && enable_feature ${t}
 158 done
 159
 160 # check installed doxygen version
 161 doxy_version=$(doxygen --version 2>/dev/null)
 162 doxy_major=${doxy_version%%.*}
 163 if [ ${doxy_major:-0} -ge 1 ]; then
 164     doxy_version=${doxy_version#*.}
 165     doxy_minor=${doxy_version%%.*}
 166     doxy_patch=${doxy_version##*.}
 167
 168     [ $doxy_major -gt 1 ] && enable_feature doxygen
 169     [ $doxy_minor -gt 5 ] && enable_feature doxygen
 170     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable_feature doxygen
 171 fi
 172
 173 # install everything except the sources, by default. sources will have
 174 # to be enabled when doing dist builds, since that's no longer a common
 175 # case.
 176 enabled doxygen && php -v >/dev/null 2>&1 && enable_feature install_docs
 177 enable_feature install_bins
 178 enable_feature install_libs
 179
 180 enable_feature static
 181 enable_feature optimizations
 182 enable_feature fast_unaligned #allow unaligned accesses, if supported by hw
 183 enable_feature md5
 184 enable_feature spatial_resampling
 185 enable_feature multithread
 186 enable_feature os_support
 187 enable_feature temporal_denoising
 188
 189 [ -d ${source_path}/../include ] && enable_feature alt_tree_layout
 190 for d in vp8 vp9; do
 191     [ -d ${source_path}/${d} ] && disable_feature alt_tree_layout;
 192 done
 193
 194 if ! enabled alt_tree_layout; then
 195 # development environment
 196 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 197 [ -d ${source_path}/vp9 ] && CODECS="${CODECS} vp9_encoder vp9_decoder"
 198 else
 199 # customer environment
 200 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 201 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 202 [ -f ${source_path}/../include/vpx/vp9cx.h ] && CODECS="${CODECS} vp9_encoder"
 203 [ -f ${source_path}/../include/vpx/vp9dx.h ] && CODECS="${CODECS} vp9_decoder"
 204 [ -f ${source_path}/../include/vpx/vp8cx.h ] || disable_feature vp8_encoder
 205 [ -f ${source_path}/../include/vpx/vp8dx.h ] || disable_feature vp8_decoder
 206 [ -f ${source_path}/../include/vpx/vp9cx.h ] || disable_feature vp9_encoder
 207 [ -f ${source_path}/../include/vpx/vp9dx.h ] || disable_feature vp9_decoder
 208
 209 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 210 fi
 211
 212 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 213 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 214
 215 ARCH_LIST="
 216     arm
 217     mips
 218     x86
 219     x86_64
 220     ppc32
 221     ppc64
 222 "
 223 ARCH_EXT_LIST="
 224     edsp
 225     media
 226     neon
 227
 228     mips32
 229     dspr2
 230
 231     mmx
 232     sse
 233     sse2
 234     sse3
 235     ssse3
 236     sse4_1
 237
 238     altivec
 239 "
 240 HAVE_LIST="
 241     ${ARCH_EXT_LIST}
 242     vpx_ports
 243     stdint_h
 244     alt_tree_layout
 245     pthread_h
 246     sys_mman_h
 247     unistd_h
 248 "
 249 EXPERIMENT_LIST="
 250     oneshotq
 251     multiple_arf
 252     non420
 253     alpha
 254 "
 255 CONFIG_LIST="
 256     external_build
 257     install_docs
 258     install_bins
 259     install_libs
 260     install_srcs
 261     use_x86inc
 262     debug
 263     gprof
 264     gcov
 265     rvct
 266     gcc
 267     msvs
 268     pic
 269     big_endian
 270
 271     codec_srcs
 272     debug_libs
 273     fast_unaligned
 274     mem_manager
 275     mem_tracker
 276     mem_checks
 277     md5
 278
 279     dequant_tokens
 280     dc_recon
 281     runtime_cpu_detect
 282     postproc
 283     vp9_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     use_x86inc
 320     optimizations
 321     ccache
 322     runtime_cpu_detect
 323     thumb
 324
 325     libs
 326     examples
 327     docs
 328     libc
 329     as
 330     fast_unaligned
 331     codec_srcs
 332     debug_libs
 333     md5
 334
 335     dequant_tokens
 336     dc_recon
 337     postproc
 338     vp9_postproc
 339     multithread
 340     internal_stats
 341     ${CODECS}
 342     ${CODEC_FAMILIES}
 343     static_msvcrt
 344     mem_tracker
 345     spatial_resampling
 346     realtime_only
 347     onthefly_bitpacking
 348     error_concealment
 349     shared
 350     static
 351     small
 352     postproc_visualizer
 353     unit_tests
 354     multi_res_encoding
 355     temporal_denoising
 356     experimental
 357     decrypt
 358 "
 359
 360 process_cmdline() {
 361     for opt do
 362         optval="${opt#*=}"
 363         case "$opt" in
 364         --disable-codecs) for c in ${CODECS}; do disable_feature $c; done ;;
 365         --enable-?*|--disable-?*)
 366         eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
 367         if echo "${EXPERIMENT_LIST}" | grep "^ *$option\$" >/dev/null; then
 368             if enabled experimental; then
 369                 ${action}_feature $option
 370             else
 371                 log_echo "Ignoring $opt -- not in experimental mode."
 372             fi
 373         else
 374             process_common_cmdline $opt
 375         fi
 376         ;;
 377         *) process_common_cmdline "$opt"
 378         ;;
 379         esac
 380     done
 381 }
 382
 383 post_process_cmdline() {
 384     local c
 385
 386     # If the codec family is disabled, disable all components of that family.
 387     # If the codec family is enabled, enable all components of that family.
 388     log_echo "Configuring selected codecs"
 389     for c in ${CODECS}; do
 390         disabled ${c%%_*} && disable_feature ${c}
 391         enabled ${c%%_*} && enable_feature ${c}
 392     done
 393
 394     # Enable all detected codecs, if they haven't been disabled
 395     for c in ${CODECS}; do soft_enable $c; done
 396
 397     # Enable the codec family if any component of that family is enabled
 398     for c in ${CODECS}; do
 399         enabled $c && enable_feature ${c%_*}
 400     done
 401
 402     # Set the {en,de}coders variable if any algorithm in that class is enabled
 403     for c in ${CODECS}; do
 404         enabled ${c} && enable_feature ${c##*_}s
 405     done
 406 }
 407
 408
 409 process_targets() {
 410     enabled child || write_common_config_banner
 411     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 412
 413     # TODO: add host tools target (obj_int_extract, etc)
 414
 415     # For fat binaries, call configure recursively to configure for each
 416     # binary architecture to be included.
 417     if enabled universal; then
 418         # Call configure (ourselves) for each subarchitecture
 419         for arch in $fat_bin_archs; do
 420             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 421         done
 422     fi
 423
 424     # The write_common_config (config.mk) logic is deferred until after the
 425     # recursive calls to configure complete, becuase we want our universal
 426     # targets to be executed last.
 427     write_common_config_targets
 428     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 429
 430     # Calculate the default distribution name, based on the enabled features
 431     local cf
 432     local DIST_DIR=vpx
 433     for cf in $CODEC_FAMILIES; do
 434         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 435             DIST_DIR="${DIST_DIR}-${cf}"
 436         elif enabled ${cf}_encoder; then
 437             DIST_DIR="${DIST_DIR}-${cf}cx"
 438         elif enabled ${cf}_decoder; then
 439             DIST_DIR="${DIST_DIR}-${cf}dx"
 440         fi
 441     done
 442     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 443     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 444     ! enabled postproc && ! enabled vp9_postproc && DIST_DIR="${DIST_DIR}-nopost"
 445     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 446     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 447     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 448     case "${tgt_os}" in
 449     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 450           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 451           ;;
 452     esac
 453     if [ -f "${source_path}/build/make/version.sh" ]; then
 454         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 455         DIST_DIR="${DIST_DIR}-${ver}"
 456         VERSION_STRING=${ver}
 457         ver=${ver%%-*}
 458         VERSION_PATCH=${ver##*.}
 459         ver=${ver%.*}
 460         VERSION_MINOR=${ver##*.}
 461         ver=${ver#v}
 462         VERSION_MAJOR=${ver%.*}
 463     fi
 464     enabled child || cat <<EOF >> config.mk
 465
 466 PREFIX=${prefix}
 467 ifeq (\$(MAKECMDGOALS),dist)
 468 DIST_DIR?=${DIST_DIR}
 469 else
 470 DIST_DIR?=\$(DESTDIR)${prefix}
 471 endif
 472 LIBSUBDIR=${libdir##${prefix}/}
 473
 474 VERSION_STRING=${VERSION_STRING}
 475
 476 VERSION_MAJOR=${VERSION_MAJOR}
 477 VERSION_MINOR=${VERSION_MINOR}
 478 VERSION_PATCH=${VERSION_PATCH}
 479
 480 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 481 EOF
 482     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 483
 484     #
 485     # Write makefiles for all enabled targets
 486     #
 487     for tgt in libs examples docs solution; do
 488         local tgt_fn="$tgt-$toolchain.mk"
 489
 490         if enabled $tgt; then
 491             echo "Creating makefiles for ${toolchain} ${tgt}"
 492             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 493             #write_${tgt}_config
 494         fi
 495     done
 496
 497 }
 498
 499 process_detect() {
 500     if enabled shared; then
 501         # Can only build shared libs on a subset of platforms. Doing this check
 502         # here rather than at option parse time because the target auto-detect
 503         # magic happens after the command line has been parsed.
 504         if ! enabled linux; then
 505             if enabled gnu; then
 506                 echo "--enable-shared is only supported on ELF; assuming this is OK"
 507             else
 508                 die "--enable-shared only supported on ELF for now"
 509             fi
 510         fi
 511     fi
 512     if [ -z "$CC" ] || enabled external_build; then
 513         echo "Bypassing toolchain for environment detection."
 514         enable_feature external_build
 515         check_header() {
 516             log fake_check_header "$@"
 517             header=$1
 518             shift
 519             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 520             disable_feature $var
 521             # Headers common to all environments
 522             case $header in
 523                 stdio.h)
 524                     true;
 525                 ;;
 526                 *)
 527                     local result=false
 528                     for d in "$@"; do
 529                         [ -f "${d##-I}/$header" ] && result=true && break
 530                     done
 531                     ${result:-true}
 532             esac && enable_feature $var
 533
 534             # Specialize windows and POSIX environments.
 535             case $toolchain in
 536                 *-win*-*)
 537                     case $header-$toolchain in
 538                         stdint*-gcc) true;;
 539                         *) false;;
 540                     esac && enable_feature $var
 541                     ;;
 542                 *)
 543                     case $header in
 544                         stdint.h) true;;
 545                         pthread.h) true;;
 546                         sys/mman.h) true;;
 547                         unistd.h) true;;
 548                         *) false;;
 549                     esac && enable_feature $var
 550             esac
 551             enabled $var
 552         }
 553         check_ld() {
 554             true
 555         }
 556     fi
 557     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 558     check_ld <<EOF || die "Toolchain is unable to link executables"
 559 int main(void) {return 0;}
 560 EOF
 561     # check system headers
 562     check_header stdint.h
 563     check_header pthread.h
 564     check_header sys/mman.h
 565     check_header unistd.h # for sysconf(3) and friends.
 566
 567     check_header vpx/vpx_integer.h -I${source_path} && enable_feature vpx_ports
 568 }
 569
 570 process_toolchain() {
 571     process_common_toolchain
 572
 573     # Handle universal binaries for this architecture
 574     case $toolchain in
 575         universal-darwin*)
 576             local darwin_ver=${tgt_os##darwin}
 577
 578             # Snow Leopard (10.6/darwin10) dropped support for PPC
 579             # Include PPC support for all prior versions
 580             if [ $darwin_ver -lt 10 ]; then
 581                 fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 582             fi
 583
 584             # Tiger (10.4/darwin8) brought support for x86
 585             if [ $darwin_ver -ge 8 ]; then
 586                 fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 587             fi
 588
 589             # Leopard (10.5/darwin9) brought 64 bit support
 590             if [ $darwin_ver -ge 9 ]; then
 591                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 592             fi
 593             ;;
 594     esac
 595
 596
 597     # Enable some useful compiler flags
 598     if enabled gcc; then
 599         enabled werror && check_add_cflags -Werror
 600         check_add_cflags -Wall
 601         check_add_cflags -Wdeclaration-after-statement
 602         check_add_cflags -Wdisabled-optimization
 603         check_add_cflags -Wpointer-arith
 604         check_add_cflags -Wtype-limits
 605         check_add_cflags -Wcast-qual
 606         check_add_cflags -Wvla
 607         check_add_cflags -Wimplicit-function-declaration
 608         check_add_cflags -Wuninitialized
 609         check_add_cflags -Wunused-variable
 610         case ${CC} in
 611           *clang*) ;;
 612           *) check_add_cflags -Wunused-but-set-variable ;;
 613         esac
 614         enabled extra_warnings || check_add_cflags -Wno-unused-function
 615     fi
 616
 617     if enabled icc; then
 618         enabled werror && check_add_cflags -Werror
 619         check_add_cflags -Wall
 620         check_add_cflags -Wpointer-arith
 621
 622         # ICC has a number of floating point optimizations that we disable
 623         # in favor of deterministic output WRT to other compilers
 624         add_cflags -fp-model precise
 625     fi
 626
 627     # Enable extra, harmless warnings. These might provide additional insight
 628     # to what the compiler is doing and why, but in general, but they shouldn't
 629     # be treated as fatal, even if we're treating warnings as errors.
 630     GCC_EXTRA_WARNINGS="
 631         -Wdisabled-optimization
 632         -Winline
 633     "
 634     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 635     RVCT_EXTRA_WARNINGS="
 636         --remarks
 637     "
 638     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 639     if enabled extra_warnings; then
 640         for w in ${EXTRA_WARNINGS}; do
 641             check_add_cflags ${w}
 642             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 643         done
 644     fi
 645
 646     # ccache only really works on gcc toolchains
 647     enabled gcc || soft_disable ccache
 648     if enabled mips; then
 649         enable_feature dequant_tokens
 650         enable_feature dc_recon
 651     fi
 652
 653     if enabled internal_stats; then
 654         enable_feature vp9_postproc
 655     fi
 656
 657     # Enable the postbuild target if building for visual studio.
 658     case "$tgt_cc" in
 659         vs*) enable_feature msvs
 660              enable_feature solution
 661              vs_version=${tgt_cc##vs}
 662              case $vs_version in
 663              [789])
 664                  VCPROJ_SFX=vcproj
 665                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_proj.sh
 666                  ;;
 667              10|11)
 668                  VCPROJ_SFX=vcxproj
 669                  gen_vcproj_cmd=${source_path}/build/make/gen_msvs_vcxproj.sh
 670                  ;;
 671              esac
 672              all_targets="${all_targets} solution"
 673              INLINE="__forceinline"
 674         ;;
 675     esac
 676
 677     # Other toolchain specific defaults
 678     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 679
 680     if enabled postproc_visualizer; then
 681         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 682     fi
 683
 684     # Enable unit tests by default if we have a working C++ compiler.
 685     case "$toolchain" in
 686         *-vs*)
 687             soft_enable unit_tests
 688         ;;
 689         *-android-*)
 690             # GTestLog must be modified to use Android logging utilities.
 691         ;;
 692         *-darwin-*)
 693             # iOS/ARM builds do not work with gtest. This does not match
 694             # x86 targets.
 695         ;;
 696         *-win*)
 697             # Some mingw toolchains don't have pthread available by default.
 698             # Treat these more like visual studio where threading in gtest
 699             # would be disabled for the same reason.
 700             check_cxx "$@" <<EOF && soft_enable unit_tests
 701 int z;
 702 EOF
 703         ;;
 704         *)
 705             enabled pthread_h && check_cxx "$@" <<EOF && soft_enable unit_tests
 706 int z;
 707 EOF
 708         ;;
 709     esac
 710 }
 711
 712
 713 ##
 714 ## END APPLICATION SPECIFIC CONFIGURATION
 715 ##
 716 CONFIGURE_ARGS="$@"
 717 process "$@"
 718 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 719 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 720 static const char* const cfg = "$CONFIGURE_ARGS";
 721 const char *vpx_codec_build_config(void) {return cfg;}
 722 EOF