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