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