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