configure

   1 #!/bin/sh
   2
   3 #----------------------------------------------------------------------------
   4 #  configure script for L-SMASH
   5 #
   6 #  Currently, this script is considering only GCC.
   7 #  If you want to use other compiler based on C99 standerd (e.g. llvm),
   8 #  we just say to you "patches welcome."
   9 #----------------------------------------------------------------------------
  10
  11 if test x"$1" = x"-h" -o x"$1" = x"--help" ; then
  12 cat << EOF
  13 Usage: ./configure [options]
  14
  15 options:
  16   -h, --help               print this message
  17
  18   --prefix=PREFIX          install architecture-independent files into PREFIX
  19                            [/usr/local]
  20   --exec-prefix=EPREFIX    install architecture-dependent files into EPREFIX
  21                            [PREFIX]
  22   --bindir=DIR             install binaries in DIR [EPREFIX/bin]
  23   --libdir=DIR             install libs in DIR [EPREFIX/lib]
  24   --includedir=DIR         install headers in DIR [PREFIX/include]
  25
  26   --cc=CC                  use a defined compiler for compilation and linking [gcc]
  27   --target-os=OS           build programs to run on OS [auto]
  28   --cross-prefix=PREFIX    use PREFIX for compilation tools [none]
  29   --sysroot=DIR            specify toolchain's directory [none]
  30   --disable-static         doesn't compile static library
  31   --enable-shared          also compile shared library besides static library
  32   --enable-debug           compile with debug symbols and never strip
  33
  34   --extra-cflags=XCFLAGS   add XCFLAGS to CFLAGS
  35   --extra-ldflags=XLDFLAGS add XLDFLAGS to LDFLAGS
  36   --extra-libs=XLIBS       add XLIBS to LIBS
  37 EOF
  38 exit 1
  39 fi
  40
  41 #-----------------------------------------------------------------------------
  42
  43 error_exit()
  44 {
  45     echo error: $1
  46     exit 1
  47 }
  48
  49 #Currently, this is used only for the flag check of compiler.
  50 cc_check()
  51 {
  52     echo 'int main(void){return 0;}' > conftest.c
  53     $CC conftest.c $1 $2 -o conftest 2> /dev/null
  54     ret=$?
  55     rm -f conftest*
  56     return $ret
  57 }
  58
  59 #-----------------------------------------------------------------------------
  60
  61 rm -f config.* .depend conftest* liblsmash.pc
  62
  63
  64 echo
  65 echo generating config.mak ...
  66 echo
  67
  68
  69 SRCDIR=$(dirname "$0")
  70 SRCDIR=$(cd "$SRCDIR"; pwd)
  71 test "$SRCDIR" = "$(pwd)" && SRCDIR=.
  72 test -n "$(echo $SRCDIR | grep ' ')" && \
  73     error_exit "out-of-tree builds are impossible with whitespace in source path"
  74
  75 prefix=""
  76 exec_prefix=""
  77 bindir=""
  78 libdir=""
  79 includedir=""
  80 DESTDIR=""
  81
  82 TARGET_OS=""
  83 CROSS=""
  84
  85 SYSROOT=""
  86 CC="gcc"
  87 AR="ar"
  88 LD="gcc"
  89 RANLIB="ranlib"
  90 STRIP="strip"
  91
  92 DEBUG=""
  93
  94 EXT=""
  95
  96 STATIC_NAME="liblsmash"
  97 STATIC_EXT=".a"
  98 STATICLIB="enabled"
  99
 100 SHARED_NAME="liblsmash"
 101 SHARED_EXT=".so"
 102 SHAREDLIB=""
 103 IMPLIB=""
 104
 105 TOOLS=""
 106
 107 CFLAGS="-Wshadow -Wall -std=c99 -pedantic -I. -I$SRCDIR"
 108 LDFLAGS="-L."
 109 SO_LDFLAGS='-shared -Wl,-soname,$@'
 110 LIBS="-lm"
 111
 112 DEMUXER="enabled"
 113
 114 for opt; do
 115     optarg="${opt#*=}"
 116     case "$opt" in
 117         --prefix=*)
 118             prefix="$optarg"
 119             ;;
 120         --exec-prefix=*)
 121             exec_prefix="$optarg"
 122             ;;
 123         --bindir=*)
 124             bindir="$optarg"
 125             ;;
 126         --libdir=*)
 127             libdir="$optarg"
 128             ;;
 129         --includedir=*)
 130             includedir="$optarg"
 131             ;;
 132         --destdir=*)
 133             DESTDIR="$optarg"
 134             ;;
 135         --cc=*)
 136             CC="$optarg"
 137             LD="$optarg"
 138             ;;
 139         --target-os=*)
 140             TARGET_OS="$optarg"
 141             ;;
 142         --cross-prefix=*)
 143             CROSS="$optarg"
 144             ;;
 145         --sysroot=*)
 146             CFLAGS="$CFLAGS --sysroot=$optarg"
 147             LDFLAGS="$LDFLAGS --sysroot=$optarg"
 148             ;;
 149         --disable-static)
 150             STATICLIB=""
 151             SHAREDLIB="enabled"
 152             ;;
 153         --enable-shared)
 154             SHAREDLIB="enabled"
 155             ;;
 156         --enable-debug)
 157             DEBUG="enabled"
 158             ;;
 159         --extra-cflags=*)
 160             XCFLAGS="$optarg"
 161             ;;
 162         --extra-ldflags=*)
 163             XLDFLAGS="$optarg"
 164             ;;
 165         --extra-libs=*)
 166             XLIBS="$optarg"
 167             ;;
 168         # "--disable-demuxer" is the special option only for developers.
 169         --disable-demuxer)
 170             DEMUXER=""
 171             ;;
 172         *)
 173             error_exit "unknown option $opt"
 174             ;;
 175     esac
 176 done
 177
 178 test -n "$prefix" || prefix="/usr/local"
 179 test -n "$exec_prefix" || exec_prefix='${prefix}'
 180 test -n "$bindir" || bindir='${exec_prefix}/bin'
 181 test -n "$libdir" || libdir='${exec_prefix}/lib'
 182 test -n "$includedir" || includedir='${prefix}/include'
 183
 184
 185 CC="${CROSS}${CC}"
 186 AR="${CROSS}${AR}"
 187 LD="${CROSS}${LD}"
 188 RANLIB="${CROSS}${RANLIB}"
 189 STRIP="${CROSS}${STRIP}"
 190 for f in "$CC" "$AR" "$LD" "$RANLIB" "$STRIP"; do
 191     test -n "$(which $f 2> /dev/null)" || error_exit "$f is not executable"
 192 done
 193
 194
 195 MAJVER=$(grep -e '#define LSMASH_VERSION_MAJOR' $SRCDIR/lsmash.h | sed -e 's/#define LSMASH_VERSION_MAJOR //;s/ //g')
 196 MINVER=$(grep -e '#define LSMASH_VERSION_MINOR' $SRCDIR/lsmash.h | sed -e 's/#define LSMASH_VERSION_MINOR //;s/ //g')
 197 MICVER=$(grep -e '#define LSMASH_VERSION_MICRO' $SRCDIR/lsmash.h | sed -e 's/#define LSMASH_VERSION_MICRO //;s/ //g')
 198
 199 if test -n "$TARGET_OS"; then
 200     TARGET_OS=$(echo $TARGET_OS | tr '[A-Z]' '[a-z]')
 201 else
 202     TARGET_OS=$($CC -dumpmachine | tr '[A-Z]' '[a-z]')
 203 fi
 204 case "$TARGET_OS" in
 205     *mingw*)
 206         EXT=".exe"
 207         SHARED_EXT=".dll"
 208         IMPLIB="liblsmash.dll.a"
 209         SO_LDFLAGS="-shared -Wl,--out-implib,$IMPLIB"
 210         CFLAGS="$CFLAGS -D__USE_MINGW_ANSI_STDIO=1"
 211         ;;
 212     *cygwin*)
 213         EXT=".exe"
 214         SHARED_NAME="cyglsmash"
 215         SHARED_EXT=".dll"
 216         IMPLIB="liblsmash.dll.a"
 217         SO_LDFLAGS="-shared -Wl,--out-implib,$IMPLIB"
 218         ;;
 219     *darwin*)
 220         SHARED_EXT=".dylib"
 221         SO_LDFLAGS="-dynamiclib -Wl,-undefined,suppress -Wl,-read_only_relocs,suppress -Wl,-flat_namespace"
 222         ;;
 223     *solaris*)
 224         #patches welcome
 225         SHAREDLIB=""
 226         ;;
 227     *)
 228         SHARED_NAME="liblsmash"
 229         SHARED_EXT=".so.$MAJVER"
 230         if test -n "$SHAREDLIB"; then
 231             CFLAGS="$CFLAGS -fPIC"
 232             LDFLAGS="$LDFLAGS -fPIC"
 233         fi
 234         ;;
 235 esac
 236
 237
 238 STATICLIBNAME="${STATIC_NAME}${STATIC_EXT}"
 239 SHAREDLIBNAME="${SHARED_NAME}${SHARED_EXT}"
 240 test -n "$STATICLIB" && STATICLIB="$STATICLIBNAME"
 241 test -n "$SHAREDLIB" && SHAREDLIB="$SHAREDLIBNAME"
 242 test -z "$STATICLIB" -a -z "$SHAREDLIB" && \
 243     error_exit "--disable-static requires --enable-shared were specified"
 244 test -z "$SHAREDLIB" && SO_LDFLAGS=""
 245
 246
 247 CFLAGS="$CFLAGS $XCFLAGS"
 248 LDFLAGS="$LDFLAGS $XLDFLAGS"
 249 LIBS="$LIBS $XLIBS"
 250
 251
 252 # In order to avoid some compiler bugs, we don't use "-O3" for the default.
 253 # "-Os" unites "-O2" and "-finline-funtions" on x86/x86_64 in the latest GCC.
 254 # As a result of taking these into consideration, we make "-Os" a rated value.
 255 # And, we don't care about architecture related options.
 256 # If you want them, set up by yourself like --extra-cflags="-O3 -march=native".
 257 if test -n "$DEBUG"; then
 258     CFLAGS="$CFLAGS -g3 -O0"
 259     STRIP=""
 260 else
 261     CFLAGS="-Os -ffast-math $CFLAGS"
 262 fi
 263
 264
 265 if ! cc_check "$CFLAGS" "$LDFLAGS"; then
 266     error_exit "invalid CFLAGS/LDFLAGS"
 267 fi
 268
 269 if cc_check "$CFLAGS -fexcess-precision=fast" "$LDFLAGS"; then
 270     CFLAGS="$CFLAGS -fexcess-precision=fast"
 271 fi
 272
 273 if cc_check "$CFLAGS" "$LDFLAGS -Wl,--large-address-aware"; then
 274     LDFLAGS="$LDFLAGS -Wl,--large-address-aware"
 275 fi
 276
 277
 278 #=============================================================================
 279 # Notation for developpers.
 280 # Be sure to modified this block when you add/delete source files.
 281 SRCS="common/alloc.c common/utils.c common/bstream.c common/list.c \
 282       common/osdep.c codecs/mp4sys.c codecs/mp4a.c codecs/dts.c codecs/a52.c \
 283       codecs/h264.c codecs/hevc.c codecs/vc1.c codecs/alac.c \
 284       codecs/description.c core/isom.c core/fragment.c core/summary.c \
 285       core/print.c core/read.c core/timeline.c core/chapter.c core/meta.c \
 286       core/write.c core/box.c core/file.c"
 287 SRC_TOOLS="cli/cli.c cli/adts_imp.c cli/mp3_imp.c cli/amr_imp.c cli/a52_imp.c \
 288            cli/als_imp.c cli/dts_imp.c cli/vc1_imp.c cli/nalu_imp.c \
 289            cli/importer.c"
 290 OBJ_TOOLS=""
 291
 292 TOOLS_ALL="muxer remuxer boxdumper timelineeditor"
 293 TOOLS_NAME=""
 294
 295 if test -n "$DEMUXER"; then
 296     CFLAGS="$CFLAGS -DLSMASH_DEMUXER_ENABLED"
 297     TOOLS="$TOOLS_ALL"
 298 else
 299     TOOLS="muxer"
 300 fi
 301
 302 for tool in $SRC_TOOLS; do
 303     OBJ_TOOLS="$OBJ_TOOLS ${tool%.c}.o"
 304 done
 305
 306 for tool in $TOOLS; do
 307     SRC_TOOLS="$SRC_TOOLS cli/${tool}.c"
 308     TOOLS_NAME="$TOOLS_NAME cli/${tool}${EXT}"
 309 done
 310 #=============================================================================
 311
 312 CURDIR="$PWD"
 313 cd $SRCDIR
 314 VER=$MAJVER.$MINVER.$MICVER
 315 REV="$(git rev-list HEAD 2> /dev/null | wc -l)"
 316 if test $REV -ne 0; then
 317     VER_STRING="$VER rev.$REV"
 318 else
 319     VER_STRING="$VER"
 320 fi
 321 HASH="$(git describe --always 2> /dev/null)"
 322 cd "$CURDIR"
 323 cat >> config.h << EOF
 324 #define LSMASH_REV "$REV"
 325 #define LSMASH_GIT_HASH "$HASH"
 326 EOF
 327
 328
 329 cat >> liblsmash.pc << EOF
 330 prefix=$prefix
 331 exec_prefix=$exec_prefix
 332 libdir=$libdir
 333 includedir=$includedir
 334
 335 Name: liblsmash
 336 Description: Loyal to Spec of MPEG4, and Ad-hock Simple Hackwork
 337 Version: $VER_STRING
 338 Requires:
 339 URL: https://github.com/l-smash/l-smash
 340 Libs: -L${libdir} -llsmash $LIBS
 341 Libs.private:
 342 Cflags: -I${includedir}
 343 EOF
 344
 345
 346 cat >> config.mak << EOF
 347 SRCDIR = $SRCDIR
 348 DESTDIR = $DESTDIR
 349 prefix = $prefix
 350 exec_prefix = $exec_prefix
 351 bindir = $bindir
 352 libdir = $libdir
 353 includedir = $includedir
 354 CC = $CC
 355 AR = $AR
 356 LD = $LD
 357 RANLIB = $RANLIB
 358 STRIP = $STRIP
 359 STATICLIBNAME = $STATICLIBNAME
 360 STATICLIB = $STATICLIB
 361 SHAREDLIBNAME = $SHAREDLIBNAME
 362 SHAREDLIB = $SHAREDLIB
 363 IMPLIB = $IMPLIB
 364 CFLAGS = $CFLAGS
 365 LDFLAGS = $LDFLAGS
 366 SO_LDFLAGS = $SO_LDFLAGS
 367 LIBS = $LIBS
 368 EOF
 369
 370 cat config.mak
 371
 372 cat >> config.mak << EOF
 373 SRCS = $SRCS
 374 SRC_TOOLS = $SRC_TOOLS
 375 TOOLS_ALL = $TOOLS_ALL
 376 TOOLS = $TOOLS_NAME
 377 MAJVER = $MAJVER
 378 EOF
 379
 380
 381 for tool in $TOOLS; do
 382     cat >> config.mak2 << EOF
 383 cli/${tool}${EXT}: cli/${tool}.o $OBJ_TOOLS $STATICLIB $SHAREDLIB
 384         \$(CC) \$(CFLAGS) \$(LDFLAGS) -o \$@ \$< $OBJ_TOOLS -llsmash \$(LIBS)
 385         -@ \$(if \$(STRIP), \$(STRIP) \$@)
 386
 387 EOF
 388 done
 389
 390
 391 test "$SRCDIR" = "." || ln -sf ${SRCDIR}/Makefile .
 392 mkdir -p cli codecs common core
 393
 394
 395 cat << EOF
 396
 397 configure finished
 398
 399   type 'make'             : compile library and tools
 400   type 'make install'     : install all into system
 401   type 'make lib'         : compile library only
 402   type 'make install-lib' : install library and header into system
 403
 404 EOF
 405
 406 exit 0