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}                  don't build libraries
  24   ${toggle_examples}              don't build examples
  25   ${toggle_unit_tests}            build unit tests
  26   --libc=PATH                     path to alternate libc
  27   --as={yasm|nasm|auto}           use specified assembler [auto, yasm preferred]
  28   ${toggle_fast_unaligned}        don't use unaligned accesses, even when
  29                                   supported by hardware [auto]
  30   ${toggle_codec_srcs}            in/exclude codec library source code
  31   ${toggle_debug_libs}            in/exclude debug version of libraries
  32   ${toggle_md5}                   support for output of checksum data
  33   ${toggle_static_msvcrt}         use static MSVCRT (VS builds only)
  34   ${toggle_vp8}                   VP8 codec support
  35   ${toggle_internal_stats}        output of encoder internal stats for debug, if supported (encoders)
  36   ${toggle_mem_tracker}           track memory usage
  37   ${toggle_postproc}              postprocessing
  38   ${toggle_multithread}           multithreaded encoding and decoding
  39   ${toggle_spatial_resampling}    spatial sampling (scaling) support
  40   ${toggle_realtime_only}         enable this option while building for real-time encoding
  41   ${toggle_error_concealment}     enable this option to get a decoder which is able to conceal losses
  42   ${toggle_runtime_cpu_detect}    runtime cpu detection
  43   ${toggle_shared}                shared library support
  44   ${toggle_static}                static library support
  45   ${toggle_small}                 favor smaller size over speed
  46   ${toggle_postproc_visualizer}   macro block / block level visualizers
  47   ${toggle_multi_res_encoding}    enable multiple-resolution encoding
  48
  49 Codecs:
  50   Codecs can be selectively enabled or disabled individually, or by family:
  51       --disable-<codec>
  52   is equivalent to:
  53       --disable-<codec>-encoder
  54       --disable-<codec>-decoder
  55
  56   Codecs available in this distribution:
  57 EOF
  58 #restore editor state '
  59
  60     local family;
  61     local last_family;
  62     local c;
  63     local str;
  64     for c in ${CODECS}; do
  65         family=${c%_*}
  66         if [ "${family}" != "${last_family}" ]; then
  67             [ -z "${str}" ] || echo "${str}"
  68             str="$(printf '    %10s:' ${family})"
  69         fi
  70         str="${str} $(printf '%10s' ${c#*_})"
  71         last_family=${family}
  72     done
  73     echo "${str}"
  74     show_help_post
  75 }
  76
  77 ##
  78 ## BEGIN APPLICATION SPECIFIC CONFIGURATION
  79 ##
  80
  81 # all_platforms is a list of all supported target platforms. Maintain
  82 # alphabetically by architecture, generic-gnu last.
  83 all_platforms="${all_platforms} armv5te-linux-rvct"
  84 all_platforms="${all_platforms} armv5te-linux-gcc"
  85 all_platforms="${all_platforms} armv5te-none-rvct"
  86 all_platforms="${all_platforms} armv5te-symbian-gcc"
  87 all_platforms="${all_platforms} armv6-darwin-gcc"
  88 all_platforms="${all_platforms} armv6-linux-rvct"
  89 all_platforms="${all_platforms} armv6-linux-gcc"
  90 all_platforms="${all_platforms} armv6-none-rvct"
  91 all_platforms="${all_platforms} armv6-symbian-gcc"
  92 all_platforms="${all_platforms} iwmmxt-linux-rvct"
  93 all_platforms="${all_platforms} iwmmxt-linux-gcc"
  94 all_platforms="${all_platforms} iwmmxt2-linux-rvct"
  95 all_platforms="${all_platforms} iwmmxt2-linux-gcc"
  96 all_platforms="${all_platforms} armv7-darwin-gcc"    #neon Cortex-A8
  97 all_platforms="${all_platforms} armv7-linux-rvct"    #neon Cortex-A8
  98 all_platforms="${all_platforms} armv7-linux-gcc"     #neon Cortex-A8
  99 all_platforms="${all_platforms} armv7-none-rvct"     #neon Cortex-A8
 100 all_platforms="${all_platforms} mips32-linux-gcc"
 101 all_platforms="${all_platforms} ppc32-darwin8-gcc"
 102 all_platforms="${all_platforms} ppc32-darwin9-gcc"
 103 all_platforms="${all_platforms} ppc32-linux-gcc"
 104 all_platforms="${all_platforms} ppc64-darwin8-gcc"
 105 all_platforms="${all_platforms} ppc64-darwin9-gcc"
 106 all_platforms="${all_platforms} ppc64-linux-gcc"
 107 all_platforms="${all_platforms} sparc-solaris-gcc"
 108 all_platforms="${all_platforms} x86-darwin8-gcc"
 109 all_platforms="${all_platforms} x86-darwin8-icc"
 110 all_platforms="${all_platforms} x86-darwin9-gcc"
 111 all_platforms="${all_platforms} x86-darwin9-icc"
 112 all_platforms="${all_platforms} x86-darwin10-gcc"
 113 all_platforms="${all_platforms} x86-linux-gcc"
 114 all_platforms="${all_platforms} x86-linux-icc"
 115 all_platforms="${all_platforms} x86-solaris-gcc"
 116 all_platforms="${all_platforms} x86-win32-gcc"
 117 all_platforms="${all_platforms} x86-win32-vs7"
 118 all_platforms="${all_platforms} x86-win32-vs8"
 119 all_platforms="${all_platforms} x86-win32-vs9"
 120 all_platforms="${all_platforms} x86_64-darwin9-gcc"
 121 all_platforms="${all_platforms} x86_64-darwin10-gcc"
 122 all_platforms="${all_platforms} x86_64-darwin11-gcc"
 123 all_platforms="${all_platforms} x86_64-linux-gcc"
 124 all_platforms="${all_platforms} x86_64-linux-icc"
 125 all_platforms="${all_platforms} x86_64-solaris-gcc"
 126 all_platforms="${all_platforms} x86_64-win64-gcc"
 127 all_platforms="${all_platforms} x86_64-win64-vs8"
 128 all_platforms="${all_platforms} x86_64-win64-vs9"
 129 all_platforms="${all_platforms} universal-darwin8-gcc"
 130 all_platforms="${all_platforms} universal-darwin9-gcc"
 131 all_platforms="${all_platforms} generic-gnu"
 132
 133 # all_targets is a list of all targets that can be configured
 134 # note that these should be in dependency order for now.
 135 all_targets="libs examples docs"
 136
 137 # all targets available are enabled, by default.
 138 for t in ${all_targets}; do
 139     [ -f ${source_path}/${t}.mk ] && enable ${t}
 140 done
 141
 142 # check installed doxygen version
 143 doxy_version=$(doxygen --version 2>/dev/null)
 144 doxy_major=${doxy_version%%.*}
 145 if [ ${doxy_major:-0} -ge 1 ]; then
 146     doxy_version=${doxy_version#*.}
 147     doxy_minor=${doxy_version%%.*}
 148     doxy_patch=${doxy_version##*.}
 149
 150     [ $doxy_major -gt 1 ] && enable doxygen
 151     [ $doxy_minor -gt 5 ] && enable doxygen
 152     [ $doxy_minor -eq 5 ] && [ $doxy_patch -ge 3 ] && enable doxygen
 153 fi
 154
 155 # install everything except the sources, by default. sources will have
 156 # to be enabled when doing dist builds, since that's no longer a common
 157 # case.
 158 enabled doxygen && php -v >/dev/null 2>&1 && enable install_docs
 159 enable install_bins
 160 enable install_libs
 161
 162 enable static
 163 enable optimizations
 164 enable fast_unaligned #allow unaligned accesses, if supported by hw
 165 enable md5
 166 enable spatial_resampling
 167 enable multithread
 168 enable os_support
 169
 170 [ -d ${source_path}/../include ] && enable alt_tree_layout
 171 for d in vp8; do
 172     [ -d ${source_path}/${d} ] && disable alt_tree_layout;
 173 done
 174
 175 if ! enabled alt_tree_layout; then
 176 # development environment
 177 [ -d ${source_path}/vp8 ] && CODECS="${CODECS} vp8_encoder vp8_decoder"
 178 else
 179 # customer environment
 180 [ -f ${source_path}/../include/vpx/vp8cx.h ] && CODECS="${CODECS} vp8_encoder"
 181 [ -f ${source_path}/../include/vpx/vp8dx.h ] && CODECS="${CODECS} vp8_decoder"
 182
 183 [ -f ${source_path}/../lib/*/*mt.lib ] && soft_enable static_msvcrt
 184 fi
 185
 186 CODECS="$(echo ${CODECS} | tr ' ' '\n')"
 187 CODEC_FAMILIES="$(for c in ${CODECS}; do echo ${c%_*}; done | sort | uniq)"
 188
 189 ARCH_LIST="
 190     arm
 191     mips
 192     x86
 193     x86_64
 194     ppc32
 195     ppc64
 196 "
 197 ARCH_EXT_LIST="
 198     armv5te
 199     armv6
 200     armv7
 201     iwmmxt
 202     iwmmxt2
 203
 204     mips32
 205
 206     mmx
 207     sse
 208     sse2
 209     sse3
 210     ssse3
 211     sse4_1
 212
 213     altivec
 214 "
 215 HAVE_LIST="
 216     ${ARCH_EXT_LIST}
 217     vpx_ports
 218     stdint_h
 219     alt_tree_layout
 220     pthread_h
 221     sys_mman_h
 222     unistd_h
 223 "
 224 CONFIG_LIST="
 225     external_build
 226     install_docs
 227     install_bins
 228     install_libs
 229     install_srcs
 230     debug
 231     gprof
 232     gcov
 233     rvct
 234     gcc
 235     msvs
 236     pic
 237     big_endian
 238
 239     codec_srcs
 240     debug_libs
 241     fast_unaligned
 242     mem_manager
 243     mem_tracker
 244     mem_checks
 245     md5
 246
 247     dequant_tokens
 248     dc_recon
 249     runtime_cpu_detect
 250     postproc
 251     multithread
 252     internal_stats
 253     ${CODECS}
 254     ${CODEC_FAMILIES}
 255     encoders
 256     decoders
 257     static_msvcrt
 258     spatial_resampling
 259     realtime_only
 260     error_concealment
 261     shared
 262     static
 263     small
 264     postproc_visualizer
 265     os_support
 266     unit_tests
 267     multi_res_encoding
 268 "
 269 CMDLINE_SELECT="
 270     extra_warnings
 271     werror
 272     install_docs
 273     install_bins
 274     install_libs
 275     install_srcs
 276     debug
 277     gprof
 278     gcov
 279     pic
 280     optimizations
 281     ccache
 282     runtime_cpu_detect
 283
 284     libs
 285     examples
 286     libc
 287     as
 288     fast_unaligned
 289     codec_srcs
 290     debug_libs
 291     md5
 292
 293     dequant_tokens
 294     dc_recon
 295     postproc
 296     multithread
 297     internal_stats
 298     ${CODECS}
 299     ${CODEC_FAMILIES}
 300     static_msvcrt
 301     mem_tracker
 302     spatial_resampling
 303     realtime_only
 304     error_concealment
 305     shared
 306     static
 307     small
 308     postproc_visualizer
 309     unit_tests
 310     multi_res_encoding
 311 "
 312
 313 process_cmdline() {
 314     for opt do
 315         optval="${opt#*=}"
 316         case "$opt" in
 317         --disable-codecs) for c in ${CODECS}; do disable $c; done ;;
 318         *) process_common_cmdline "$opt"
 319         ;;
 320         esac
 321     done
 322 }
 323
 324 post_process_cmdline() {
 325     local c
 326
 327     # If the codec family is disabled, disable all components of that family.
 328     # If the codec family is enabled, enable all components of that family.
 329     log_echo "Configuring selected codecs"
 330     for c in ${CODECS}; do
 331         disabled ${c%%_*} && disable ${c}
 332         enabled ${c%%_*} && enable ${c}
 333     done
 334
 335     # Enable all detected codecs, if they haven't been disabled
 336     for c in ${CODECS}; do soft_enable $c; done
 337
 338     # Enable the codec family if any component of that family is enabled
 339     for c in ${CODECS}; do
 340         enabled $c && enable ${c%_*}
 341     done
 342
 343     # Set the {en,de}coders variable if any algorithm in that class is enabled
 344     for c in ${CODECS}; do
 345         enabled ${c} && enable ${c##*_}s
 346     done
 347 }
 348
 349
 350 process_targets() {
 351     enabled child || write_common_config_banner
 352     enabled universal || write_common_target_config_h  ${BUILD_PFX}vpx_config.h
 353
 354     # TODO: add host tools target (obj_int_extract, etc)
 355
 356     # For fat binaries, call configure recursively to configure for each
 357     # binary architecture to be included.
 358     if enabled universal; then
 359         # Call configure (ourselves) for each subarchitecture
 360         for arch in $fat_bin_archs; do
 361             BUILD_PFX=${arch}/ toolchain=${arch} $self --child $cmdline_args || exit $?
 362         done
 363     fi
 364
 365     # The write_common_config (config.mk) logic is deferred until after the
 366     # recursive calls to configure complete, becuase we want our universal
 367     # targets to be executed last.
 368     write_common_config_targets
 369     enabled universal && echo "FAT_ARCHS=${fat_bin_archs}" >> config.mk
 370
 371     # Calculate the default distribution name, based on the enabled features
 372     local cf
 373     local DIST_DIR=vpx
 374     for cf in $CODEC_FAMILIES; do
 375         if enabled ${cf}_encoder && enabled ${cf}_decoder; then
 376             DIST_DIR="${DIST_DIR}-${cf}"
 377         elif enabled ${cf}_encoder; then
 378             DIST_DIR="${DIST_DIR}-${cf}cx"
 379         elif enabled ${cf}_decoder; then
 380             DIST_DIR="${DIST_DIR}-${cf}dx"
 381         fi
 382     done
 383     enabled debug_libs && DIST_DIR="${DIST_DIR}-debug"
 384     enabled codec_srcs && DIST_DIR="${DIST_DIR}-src"
 385     ! enabled postproc && DIST_DIR="${DIST_DIR}-nopost"
 386     ! enabled multithread && DIST_DIR="${DIST_DIR}-nomt"
 387     ! enabled install_docs && DIST_DIR="${DIST_DIR}-nodocs"
 388     DIST_DIR="${DIST_DIR}-${tgt_isa}-${tgt_os}"
 389     case "${tgt_os}" in
 390     win*) enabled static_msvcrt && DIST_DIR="${DIST_DIR}mt" || DIST_DIR="${DIST_DIR}md"
 391           DIST_DIR="${DIST_DIR}-${tgt_cc}"
 392           ;;
 393     esac
 394     if [ -f "${source_path}/build/make/version.sh" ]; then
 395         local ver=`"$source_path/build/make/version.sh" --bare $source_path`
 396         DIST_DIR="${DIST_DIR}-${ver}"
 397         VERSION_STRING=${ver}
 398         ver=${ver%%-*}
 399         VERSION_PATCH=${ver##*.}
 400         ver=${ver%.*}
 401         VERSION_MINOR=${ver##*.}
 402         ver=${ver#v}
 403         VERSION_MAJOR=${ver%.*}
 404     fi
 405     enabled child || cat <<EOF >> config.mk
 406
 407 PREFIX=${prefix}
 408 ifeq (\$(MAKECMDGOALS),dist)
 409 DIST_DIR?=${DIST_DIR}
 410 else
 411 DIST_DIR?=\$(DESTDIR)${prefix}
 412 endif
 413 LIBSUBDIR=${libdir##${prefix}/}
 414
 415 VERSION_STRING=${VERSION_STRING}
 416
 417 VERSION_MAJOR=${VERSION_MAJOR}
 418 VERSION_MINOR=${VERSION_MINOR}
 419 VERSION_PATCH=${VERSION_PATCH}
 420
 421 CONFIGURE_ARGS=${CONFIGURE_ARGS}
 422 EOF
 423     enabled child || echo "CONFIGURE_ARGS?=${CONFIGURE_ARGS}" >> config.mk
 424
 425     #
 426     # Write makefiles for all enabled targets
 427     #
 428     for tgt in libs examples docs solution; do
 429         local tgt_fn="$tgt-$toolchain.mk"
 430
 431         if enabled $tgt; then
 432             echo "Creating makefiles for ${toolchain} ${tgt}"
 433             write_common_target_config_mk $tgt_fn ${BUILD_PFX}vpx_config.h
 434             #write_${tgt}_config
 435         fi
 436     done
 437
 438 }
 439
 440 process_detect() {
 441     if enabled shared; then
 442         # Can only build shared libs on a subset of platforms. Doing this check
 443         # here rather than at option parse time because the target auto-detect
 444         # magic happens after the command line has been parsed.
 445         enabled linux || die "--enable-shared only supported on ELF for now"
 446     fi
 447     if [ -z "$CC" ]; then
 448         echo "Bypassing toolchain for environment detection."
 449         enable external_build
 450         check_header() {
 451             log fake_check_header "$@"
 452             header=$1
 453             shift
 454             var=`echo $header | sed 's/[^A-Za-z0-9_]/_/g'`
 455             disable $var
 456             case $header in
 457                 stdio.h)
 458                     true;
 459                 ;;
 460                 *)
 461                     local result=false
 462                     for d in "$@"; do
 463                         [ -f "${d##-I}/$header" ] && result=true && break
 464                     done
 465                     ${result:-true}
 466             esac && enable $var
 467         }
 468         check_ld() {
 469             true
 470         }
 471     fi
 472     check_header stdio.h || die "Unable to invoke compiler: ${CC} ${CFLAGS}"
 473     check_ld <<EOF || die "Toolchain is unable to link executables"
 474 int main(void) {return 0;}
 475 EOF
 476     # check system headers
 477     check_header stdint.h
 478     check_header pthread.h
 479     check_header sys/mman.h
 480
 481     check_header vpx/vpx_integer.h -I${source_path} && enable vpx_ports
 482 }
 483
 484 process_toolchain() {
 485     process_common_toolchain
 486
 487     # Handle universal binaries for this architecture
 488     case $toolchain in
 489         universal-darwin*)
 490             local darwin_ver=${tgt_os##darwin}
 491             fat_bin_archs="$fat_bin_archs ppc32-${tgt_os}-gcc"
 492
 493             # Intel
 494             fat_bin_archs="$fat_bin_archs x86-${tgt_os}-${tgt_cc}"
 495             if [ $darwin_ver -gt 8 ]; then
 496                 fat_bin_archs="$fat_bin_archs x86_64-${tgt_os}-${tgt_cc}"
 497             fi
 498             ;;
 499     esac
 500
 501
 502     # Enable some useful compiler flags
 503     if enabled gcc; then
 504         enabled werror && check_add_cflags -Werror
 505         check_add_cflags -Wall
 506         check_add_cflags -Wdeclaration-after-statement
 507         check_add_cflags -Wdisabled-optimization
 508         check_add_cflags -Wpointer-arith
 509         check_add_cflags -Wtype-limits
 510         check_add_cflags -Wcast-qual
 511         enabled extra_warnings || check_add_cflags -Wno-unused-function
 512     fi
 513
 514     if enabled icc; then
 515         enabled werror && check_add_cflags -Werror
 516         check_add_cflags -Wall
 517         check_add_cflags -Wpointer-arith
 518
 519         # ICC has a number of floating point optimizations that we disable
 520         # in favor of deterministic output WRT to other compilers
 521         add_cflags -fp-model precise
 522     fi
 523
 524     # Enable extra, harmless warnings. These might provide additional insight
 525     # to what the compiler is doing and why, but in general, but they shouldn't
 526     # be treated as fatal, even if we're treating warnings as errors.
 527     GCC_EXTRA_WARNINGS="
 528         -Wdisabled-optimization
 529         -Winline
 530     "
 531     enabled gcc && EXTRA_WARNINGS="${GCC_EXTRA_WARNINGS}"
 532     RVCT_EXTRA_WARNINGS="
 533         --remarks
 534     "
 535     enabled rvct && EXTRA_WARNINGS="${RVCT_EXTRA_WARNINGS}"
 536     if enabled extra_warnings; then
 537         for w in ${EXTRA_WARNINGS}; do
 538             check_add_cflags ${w}
 539             enabled gcc && enabled werror && check_add_cflags -Wno-error=${w}
 540         done
 541     fi
 542
 543     # ccache only really works on gcc toolchains
 544     enabled gcc || soft_disable ccache
 545     if enabled mips; then
 546         enable dequant_tokens
 547         enable dc_recon
 548     fi
 549
 550     # Enable the postbuild target if building for visual studio.
 551     case "$tgt_cc" in
 552         vs*) enable msvs
 553              enable solution
 554              vs_version=${tgt_cc##vs}
 555              all_targets="${all_targets} solution"
 556         ;;
 557     esac
 558
 559     # Other toolchain specific defaults
 560     case $toolchain in x86*|ppc*|universal*) soft_enable postproc;; esac
 561
 562     if enabled postproc_visualizer; then
 563         enabled postproc || die "postproc_visualizer requires postproc to be enabled"
 564     fi
 565 }
 566
 567
 568 ##
 569 ## END APPLICATION SPECIFIC CONFIGURATION
 570 ##
 571 CONFIGURE_ARGS="$@"
 572 process "$@"
 573 print_webm_license ${BUILD_PFX}vpx_config.c "/*" " */"
 574 cat <<EOF >> ${BUILD_PFX}vpx_config.c
 575 static const char* const cfg = "$CONFIGURE_ARGS";
 576 const char *vpx_codec_build_config(void) {return cfg;}
 577 EOF