ref: 731bc8c36c3473a1d55dd59564e2d7cb42ef9a94
dir: /configure.ac/
dnl Process this file with autoconf to produce a configure script. -*-m4-*- dnl The package_version file will be automatically synced to the git revision dnl by the update_version script when configured in the repository, but will dnl remain constant in tarball releases unless it is manually edited. m4_define([CURRENT_VERSION], m4_esyscmd([ if test -e package_version || ./update_version; then . ./package_version printf "$PACKAGE_VERSION" else printf "unknown" fi ])) AC_INIT([opus-tools],[CURRENT_VERSION],[[email protected]]) AC_CONFIG_SRCDIR([src/opusenc.c]) AC_CONFIG_MACRO_DIR([m4]) dnl enable silent rules on automake 1.11 and later m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) AM_INIT_AUTOMAKE([1.11 foreign no-define]) AM_MAINTAINER_MODE([enable]) AC_CANONICAL_HOST AM_PROG_CC_C_O AC_PROG_CC_C99 AC_C_BIGENDIAN AC_C_CONST AC_C_INLINE #Use a hacked up version of autoconf's AC_C_RESTRICT because it's not #strong enough a test to detect old buggy versions of GCC (e.g. 2.95.3) AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict, [ac_cv_c_restrict=no # The order here caters to the fact that C++ does not require restrict. for ac_kw in __restrict __restrict__ _Restrict restrict; do AC_COMPILE_IFELSE([AC_LANG_PROGRAM( [[typedef int * int_ptr; int foo (int_ptr $ac_kw ip, int * $ac_kw baz[]) { return ip[0]; }]], [[int s[1]; int * $ac_kw t = s; t[0] = 0; return foo(t, (void *)0)]])], [ac_cv_c_restrict=$ac_kw]) test "$ac_cv_c_restrict" != no && break done ]) AH_VERBATIM([restrict], [/* Define to the equivalent of the C99 'restrict' keyword, or to nothing if this is not supported. Do not define if restrict is supported directly. */ #undef restrict /* Work around a bug in Sun C++: it does not support _Restrict or __restrict__, even though the corresponding Sun C compiler ends up with "#define restrict _Restrict" or "#define restrict __restrict__" in the previous line. Perhaps some future version of Sun C++ will work with restrict; if so, hopefully it defines __RESTRICT like Sun C does. */ #if defined __SUNPRO_CC && !defined __RESTRICT # define _Restrict # define __restrict__ #endif]) case $ac_cv_c_restrict in restrict) ;; no) AC_DEFINE([restrict], []) ;; *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;; esac AC_MSG_CHECKING(for C99 variable-size arrays) AC_TRY_COMPILE( [], [static int x; char a[++x]; a[sizeof a - 1] = 0; int N; return a[0];], [has_var_arrays=yes;AC_DEFINE([VAR_ARRAYS], [], [Use C99 variable-size arrays]) ], has_var_arrays=no ) AC_MSG_RESULT($has_var_arrays) AC_CHECK_FUNC(exp,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno]) if test x"$fp_libm_not_needed" = xdunno; then AC_CHECK_LIB([m], [exp], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=]) fi AC_SUBST([LIBM]) AC_CHECK_LIB(winmm, main) ac_enable_assertions="no" AC_ARG_ENABLE(assertions, [ --enable-assertions enable additional software error checking], [if test "$enableval" = yes; then ac_enable_assertions="yes" AC_DEFINE([ENABLE_ASSERTIONS], , [Assertions]) fi]) ac_enable_flac="yes" AC_ARG_ENABLE(flac, [ --disable-flac disable FLAC support], [if test "$enableval" != "yes"; then ac_enable_flac="no" fi]) if test "x$CFLAGS" = "x-g -O2"; then saved_CFLAGS="$CFLAGS" CFLAGS="-O3 -ffast-math" AC_MSG_CHECKING([if ${CC} supports -O3 -g -ffast-math]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], [ AC_MSG_RESULT([yes]) saved_CFLAGS="-O3 -g -ffast-math" ], AC_MSG_RESULT([no])) CFLAGS="$saved_CFLAGS" fi dnl check for Ogg HAVE_OGG=no dnl first check through pkg-config since it's more flexible dnl check for pkg-config itself so we don't try the m4 macro without pkg-config AC_CHECK_PROG(HAVE_PKG_CONFIG, pkg-config, yes) if test "x$HAVE_PKG_CONFIG" = "xyes" then PKG_CHECK_MODULES(OGG, ogg >= 1.3, HAVE_OGG=yes, HAVE_OGG=no) fi if test "x$HAVE_OGG" = "xno" then dnl fall back to the old school test XIPH_PATH_OGG(, AC_MSG_ERROR([ libogg is required to build this package! please see http://www.xiph.org/ for how to obtain a copy. ])) cflags_save=$CFLAGS libs_save=$LIBS CFLAGS="$CFLAGS $OGG_CFLAGS" LIBS="$LIBS $OGG_LIBS" AC_CHECK_FUNC(ogg_stream_flush_fill, , [ AC_MSG_ERROR([newer libogg version (1.3 or later) required]) ]) CFLAGS=$cflags_save LIBS=$libs_save fi dnl check for Opus HAVE_OPUS=no if test "x$HAVE_PKG_CONFIG" = "xyes" then PKG_CHECK_MODULES(Opus, opus >= 0.9.10, HAVE_OPUS=yes, HAVE_OPUS=no) fi if test "x$HAVE_OPUS" = "xno" then dnl fall back to the old school test XIPH_PATH_OPUS(, AC_MSG_ERROR([ Opus is required to build this package! please see http://opus-codec.org/ for how to obtain a copy. ])) CFLAGS="$CFLAGS $OPUS_CFLAGS" LIBS="$LIBS $OPUS_LIBS" fi dnl check for OSS HAVE_OSS=no AC_CHECK_HEADERS([sys/soundcard.h soundcard.h machine/soundcard.h],[ HAVE_OSS=yes break ]) dnl check for sndio HAVE_SNDIO=no AC_CHECK_LIB([sndio], [sio_open]) if test "x$ac_cv_lib_sndio_sio_open" = "xyes"; then HAVE_SNDIO=yes fi if test "x$HAVE_OSS" != "xyes" && test "x$HAVE_SNDIO" != "xyes"; then AC_MSG_WARN([Audio support not found -- no direct audio output in opusdec]) fi dnl check for flac if test "x$ac_enable_flac" = "xyes" ; then HAVE_FLAC=no if test "x$HAVE_PKG_CONFIG" = "xyes" then PKG_CHECK_MODULES(FLAC, flac >= 1.1.3, HAVE_FLAC=yes, HAVE_FLAC=no) fi if test "x$HAVE_FLAC" = "xno" then dnl fall back to AC_CHECK_LIB AC_CHECK_LIB(m,log,FLAC_LIBS="$FLAC_LIBS -lm") AC_CHECK_LIB(FLAC, [FLAC__stream_decoder_init_ogg_stream], [ HAVE_FLAC="yes" FLAC_LIBS="-lFLAC $FLAC_LIBS" ], [ AC_MSG_ERROR([ FLAC 1.1.3 or later is required to build this package! Please install it or configure with --disable-flac. ]) HAVE_FLAC="no" ], [$FLAC_LIBS] ) AC_CHECK_HEADER(FLAC/stream_decoder.h,, [ AC_MSG_ERROR([ FLAC headers are required to build this package! Please install the development version of FLAC or configure with --disable-flac. ]) HAVE_FLAC="no" ], [$FLAC_CFLAGS] ) fi CFLAGS="$FLAC_CFLAGS $CFLAGS" LIBS="$FLAC_LIBS $LIBS" AC_DEFINE([HAVE_LIBFLAC], , [FLAC]) fi dnl check for pcap AC_CHECK_LIB([pcap], [pcap_open_live], [ AC_DEFINE([HAVE_PCAP], 1, [Define if building with libpcap support]) LIBPCAP="-lpcap" ]) AC_SUBST(LIBPCAP) on_x86=no case "$host_cpu" in i[[3456]]86 | x86_64) on_x86=yes ;; esac if test "x$on_x86" = "xyes"; then ac_enable_sse="no" AC_ARG_ENABLE(sse, AS_HELP_STRING([--enable-sse],[Build binaries that require SSE]), [if test "$enableval" = yes; then ac_enable_sse="yes" saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -msse" AC_MSG_CHECKING([if ${CC} supports -msse]) AC_LINK_IFELSE([AC_LANG_SOURCE([void main(void){char foo;}])], [ AC_MSG_RESULT([yes]) SSE="-msse"; ac_build_sse=yes ], AC_MSG_RESULT([no])) CFLAGS="$saved_CFLAGS $SSE" fi]) fi dnl Enable stack-protector-all only on x86 where it's well supported. dnl on some platforms it causes crashes. Hopefully the OS's default's dnl include this on platforms that work but have been missed here. ac_build_stack_protector=no if test "x$ac_cv_c_compiler_gnu" = "xyes" && test "x$on_x86" = "xyes"; then AC_ARG_ENABLE(stack-protector, AS_HELP_STRING([--disable-stack-protector],[Disable compiler stack hardening]), [ if test "x$enableval" = "xno"; then ac_build_stack_protector=$enableval fi ], [ ac_build_stack_protector=yes ]) if test "x$ac_build_stack_protector" = "xyes"; then saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -fstack-protector-all" AC_MSG_CHECKING([if ${CC} supports -fstack-protector-all]) AC_LINK_IFELSE([AC_LANG_SOURCE([void main(void){char foo;}])], [ AC_MSG_RESULT([yes]) STACK_PROTECTOR="-fstack-protector-all"; ac_build_stack_protector=yes ], AC_MSG_RESULT([no])) CFLAGS="$saved_CFLAGS $STACK_PROTECTOR" fi fi ac_build_pie=no AC_ARG_ENABLE(pie, AS_HELP_STRING([--disable-pie],[Disable PIE/RELRO hardening]), [ if test "x$enableval" = "xno"; then ac_build_pie=$enableval fi ], [ ac_build_pie=yes ]) if test "x$ac_build_pie" = "xyes"; then save_CFLAGS="$CFLAGS" save_LDFLAGS="$LDFLAGS" save_LIBS="$LIBS" CFLAGS="$CFLAGS -fPIE $Opus_CFLAGS" LDFLAGS="$LDFLAGS -pie -Wl,-z,relro -Wl,-z,now" LIBS="$LIBS $Opus_LIBS" AC_MSG_CHECKING([for PIE support]) AC_LINK_IFELSE([AC_LANG_SOURCE([ #include <opus.h> void main () { OpusDecoder *dec = opus_decoder_create(48000, 2, 0L); }])], [ac_build_pie=yes], [ac_build_pie=no]) AC_MSG_RESULT([$ac_build_pie]) if test "x$ac_build_pie" = "xyes"; then PIE_CFLAGS="-fPIE" PIE_LDFLAGS="-pie -Wl,-z,relro -Wl,-z,now" fi CFLAGS="$save_CFLAGS $PIE_CFLAGS" LDFLAGS="$save_LDFLAGS $PIE_LDFLAGS" LIBS="$save_LIBS" fi CFLAGS="$CFLAGS -W" saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes" AC_MSG_CHECKING([if ${CC} supports -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], [ AC_MSG_RESULT([yes]) EXTRA_WARNS="-Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes" ], AC_MSG_RESULT([no])) CFLAGS="$saved_CFLAGS $EXTRA_WARNS" AC_FUNC_FSEEKO AC_CHECK_FUNCS([lrintf]) AC_CHECK_FUNCS([lrint]) AC_CHECK_FUNCS([fminf]) AC_CHECK_FUNCS([fmaxf]) AC_CHECK_FUNCS([__malloc_hook]) AC_CONFIG_FILES([Makefile]) AC_CONFIG_HEADERS([config.h]) AC_OUTPUT AC_MSG_NOTICE([ ------------------------------------------------------------------------ $PACKAGE_NAME $PACKAGE_VERSION: Automatic configuration OK. Compiler support: C99 var arrays: ................ ${has_var_arrays} C99 lrintf: .................... ${ac_cv_func_lrintf} Stack protector: ............... ${ac_build_stack_protector} PIE: ........................... ${ac_build_pie} General configuration: Assertion checking: ............ ${ac_enable_assertions} FLAC input: .................... ${ac_enable_flac} ------------------------------------------------------------------------ Type "make; make install" to compile and install ])