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