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([ ./update_version 2>/dev/null || true if test -e package_version; then . ./package_version printf "$PACKAGE_VERSION" else printf "unknown" fi ])) AC_INIT([opus],[CURRENT_VERSION],[opus@xiph.org]) AC_CONFIG_SRCDIR(src/opus_encoder.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])]) # For libtool. dnl Please update these for releases. OPUS_LT_CURRENT=5 OPUS_LT_REVISION=0 OPUS_LT_AGE=5 AC_SUBST(OPUS_LT_CURRENT) AC_SUBST(OPUS_LT_REVISION) AC_SUBST(OPUS_LT_AGE) AM_INIT_AUTOMAKE([no-define]) AM_MAINTAINER_MODE([enable]) AC_CANONICAL_HOST AC_MINGW32 AM_PROG_LIBTOOL AM_PROG_CC_C_O AC_PROG_CC_C99 AC_C_CONST AC_C_INLINE AM_PROG_AS AC_DEFINE([OPUS_BUILD], [], [This is a build of OPUS]) #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) #Note: Both this and the test for variable-size arrays below are also # done by AC_PROG_CC_C99, but not thoroughly enough apparently. 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_COMPILE_IFELSE([AC_LANG_PROGRAM([], [[static int x; char a[++x]; a[sizeof a - 1] = 0; int N; return a[0];]])], [ has_var_arrays=yes use_alloca="no (using var arrays)" AC_DEFINE([VAR_ARRAYS], [1], [Use C99 variable-size arrays]) ],[ has_var_arrays=no ]) AC_MSG_RESULT([$has_var_arrays]) AS_IF([test "$has_var_arrays" = "no"], [ AC_CHECK_HEADERS([alloca.h]) AC_MSG_CHECKING(for alloca) AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include ]], [[int foo=10; int *array = alloca(foo);]])], [ use_alloca=yes; AC_DEFINE([USE_ALLOCA], [], [Make use of alloca]) ],[ use_alloca=no ]) AC_MSG_RESULT([$use_alloca]) ]) LT_LIB_M AC_ARG_ENABLE([fixed-point], [AS_HELP_STRING([--enable-fixed-point], [compile without floating point (for machines without a fast enough FPU)])],, [enable_fixed_point=no]) AS_IF([test "$enable_fixed_point" = "yes"],[ enable_float="no" AC_DEFINE([FIXED_POINT], [1], [Compile as fixed-point (for machines without a fast enough FPU)]) PC_BUILD="fixed-point" ],[ enable_float="yes"; PC_BUILD="floating-point" ]) AM_CONDITIONAL([FIXED_POINT], [test "$enable_fixed_point" = "yes"]) AC_ARG_ENABLE([fixed-point-debug], [AS_HELP_STRING([--enable-fixed-point-debug], [debug fixed-point implementation])],, [enable_fixed_point_debug=no]) AS_IF([test "$enable_fixed_point_debug" = "yes"],[ AC_DEFINE([FIXED_DEBUG], [1], [Debug fixed-point implementation]) ]) AC_ARG_ENABLE([float_api], [AS_HELP_STRING([--disable-float-api], [compile without the floating point API (for machines with no float library)])],, [enable_float_api=yes]) AM_CONDITIONAL([DISABLE_FLOAT_API], [test "$enable_float_api" = "no"]) AS_IF([test "$enable_float_api" = "no"],[ AC_DEFINE([DISABLE_FLOAT_API], [1], [Do not build the float API]) ]) AC_ARG_ENABLE([custom-modes], [AS_HELP_STRING([--enable-custom-modes], [enable non-Opus modes, e.g. 44.1 kHz & 2^n frames])],, [enable_custom_modes=no]) AS_IF([test "$enable_custom_modes" = "yes"],[ AC_DEFINE([CUSTOM_MODES], [1], [Custom modes]) PC_BUILD="$PC_BUILD, custom modes" ]) AM_CONDITIONAL([CUSTOM_MODES], [test "$enable_custom_modes" = "yes"]) has_float_approx=no #case "$host_cpu" in #i[[3456]]86 | x86_64 | powerpc64 | powerpc32 | ia64) # has_float_approx=yes # ;; #esac AC_ARG_ENABLE([float-approx], [AS_HELP_STRING([--enable-float-approx], [enable fast approximations for floating point])], [if test "$enable_float_approx" = "yes"; then AC_WARN([Floating point approximations are not supported on all platforms.]) fi ], [enable_float_approx=$has_float_approx]) AS_IF([test "$enable_float_approx" = "yes"],[ AC_DEFINE([FLOAT_APPROX], [1], [Float approximations]) ]) AC_ARG_ENABLE([asm], [AS_HELP_STRING([--disable-asm], [Disable assembly optimizations])],, [enable_asm=yes]) AC_ARG_ENABLE([rtcd], [AS_HELP_STRING([--disable-rtcd], [Disable run-time CPU capabilities detection])],, [enable_rtcd=yes]) rtcd_support=no cpu_arm=no AS_IF([test x"${enable_asm}" = x"yes"],[ inline_optimization="No ASM for your platform, please send patches" case $host_cpu in arm*) dnl Currently we only have asm for fixed-point AS_IF([test "$enable_float" != "yes"],[ cpu_arm=yes AC_DEFINE([OPUS_ARM_ASM], [], [Make use of ARM asm optimization]) AS_GCC_INLINE_ASSEMBLY( [inline_optimization="ARM"], [inline_optimization="disabled"] ) AS_ASM_ARM_EDSP([OPUS_ARM_INLINE_EDSP=1],[OPUS_ARM_INLINE_EDSP=0]) AS_ASM_ARM_MEDIA([OPUS_ARM_INLINE_MEDIA=1], [OPUS_ARM_INLINE_MEDIA=0]) AS_ASM_ARM_NEON([OPUS_ARM_INLINE_NEON=1],[OPUS_ARM_INLINE_NEON=0]) AS_IF([test x"$inline_optimization" = x"ARM"],[ AM_CONDITIONAL([OPUS_ARM_INLINE_ASM],[true]) AC_DEFINE([OPUS_ARM_INLINE_ASM], 1, [Use generic ARMv4 inline asm optimizations]) AS_IF([test x"$OPUS_ARM_INLINE_EDSP" = x"1"],[ AC_DEFINE([OPUS_ARM_INLINE_EDSP], [1], [Use ARMv5E inline asm optimizations]) inline_optimization="$inline_optimization (EDSP)" ]) AS_IF([test x"$OPUS_ARM_INLINE_MEDIA" = x"1"],[ AC_DEFINE([OPUS_ARM_INLINE_MEDIA], [1], [Use ARMv6 inline asm optimizations]) inline_optimization="$inline_optimization (Media)" ]) AS_IF([test x"$OPUS_ARM_INLINE_NEON" = x"1"],[ AC_DEFINE([OPUS_ARM_INLINE_NEON], 1, [Use ARM NEON inline asm optimizations]) inline_optimization="$inline_optimization (NEON)" ]) ]) dnl We need Perl to translate RVCT-syntax asm to gas syntax. AC_CHECK_PROG([HAVE_PERL], perl, yes, no) AS_IF([test x"$HAVE_PERL" = x"yes"],[ AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM],[true]) asm_optimization="ARM" AS_IF([test x"$OPUS_ARM_INLINE_EDSP" = x"1"], [ OPUS_ARM_PRESUME_EDSP=1 OPUS_ARM_MAY_HAVE_EDSP=1 ], [ OPUS_ARM_PRESUME_EDSP=0 OPUS_ARM_MAY_HAVE_EDSP=0 ]) AS_IF([test x"$OPUS_ARM_INLINE_MEDIA" = x"1"], [ OPUS_ARM_PRESUME_MEDIA=1 OPUS_ARM_MAY_HAVE_MEDIA=1 ], [ OPUS_ARM_PRESUME_MEDIA=0 OPUS_ARM_MAY_HAVE_MEDIA=0 ]) AS_IF([test x"$OPUS_ARM_INLINE_NEON" = x"1"], [ OPUS_ARM_PRESUME_NEON=1 OPUS_ARM_MAY_HAVE_NEON=1 ], [ OPUS_ARM_PRESUME_NEON=0 OPUS_ARM_MAY_HAVE_NEON=0 ]) AS_IF([test x"$enable_rtcd" = x"yes"],[ AS_IF([test x"$OPUS_ARM_MAY_HAVE_EDSP" != x"1"],[ AC_MSG_NOTICE( [Trying to force-enable armv5e EDSP instructions...]) AS_ASM_ARM_EDSP_FORCE([OPUS_ARM_MAY_HAVE_EDSP=1]) ]) AS_IF([test x"$OPUS_ARM_MAY_HAVE_MEDIA" != x"1"],[ AC_MSG_NOTICE( [Trying to force-enable ARMv6 media instructions...]) AS_ASM_ARM_MEDIA_FORCE([OPUS_ARM_MAY_HAVE_MEDIA=1]) ]) AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON" != x"1"],[ AC_MSG_NOTICE( [Trying to force-enable NEON instructions...]) AS_ASM_ARM_NEON_FORCE([OPUS_ARM_MAY_HAVE_NEON=1]) ]) ]) rtcd_support= AS_IF([test x"$OPUS_ARM_MAY_HAVE_EDSP" = x"1"],[ AC_DEFINE(OPUS_ARM_MAY_HAVE_EDSP, 1, [Define if assembler supports EDSP instructions]) AS_IF([test x"$OPUS_ARM_PRESUME_EDSP" = x"1"],[ AC_DEFINE(OPUS_ARM_PRESUME_EDSP, 1, [Define if binary requires EDSP instruction support]) asm_optimization="$asm_optimization (EDSP)" ], [rtcd_support="$rtcd_support (EDSP)"] ) ]) AC_SUBST(OPUS_ARM_MAY_HAVE_EDSP) AS_IF([test x"$OPUS_ARM_MAY_HAVE_MEDIA" = x"1"],[ AC_DEFINE(OPUS_ARM_MAY_HAVE_MEDIA, 1, [Define if assembler supports ARMv6 media instructions]) AS_IF([test x"$OPUS_ARM_PRESUME_MEDIA" = x"1"],[ AC_DEFINE(OPUS_ARM_PRESUME_MEDIA, 1, [Define if binary requires ARMv6 media instruction support]) asm_optimization="$asm_optimization (Media)" ], [rtcd_support="$rtcd_support (Media)"] ) ]) AC_SUBST(OPUS_ARM_MAY_HAVE_MEDIA) AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON" = x"1"],[ AC_DEFINE(OPUS_ARM_MAY_HAVE_NEON, 1, [Define if compiler supports NEON instructions]) AS_IF([test x"$OPUS_ARM_PRESUME_NEON" = x"1"], [ AC_DEFINE(OPUS_ARM_PRESUME_NEON, 1, [Define if binary requires NEON instruction support]) asm_optimization="$asm_optimization (NEON)" ], [rtcd_support="$rtcd_support (NEON)"] ) ]) AC_SUBST(OPUS_ARM_MAY_HAVE_NEON) dnl Make sure turning on RTCD gets us at least one dnl instruction set. AS_IF([test x"$rtcd_support" != x""], [rtcd_support=ARM"$rtcd_support"], [rtcd_support="no"] ) ], [ AC_MSG_WARN( [*** ARM assembly requires perl -- disabling optimizations]) asm_optimization="(missing perl dependency for ARM)" ]) ]) ;; esac ],[ inline_optimization="disabled" asm_optimization="disabled" ]) AM_CONDITIONAL([CPU_ARM], [test "$cpu_arm" = "yes"]) AM_CONDITIONAL([OPUS_ARM_INLINE_ASM], [test x"${inline_optimization:0:3}" = x"ARM"]) AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM], [test x"${asm_optimization:0:3}" = x"ARM"]) AS_IF([test x"$enable_rtcd" = x"yes"],[ AS_IF([test x"$rtcd_support" != x"no"],[ AC_DEFINE([OPUS_HAVE_RTCD], [1], [Use run-time CPU capabilities detection]) OPUS_HAVE_RTCD=1 AC_SUBST(OPUS_HAVE_RTCD) ]) ],[ rtcd_support="disabled" ]) AC_ARG_ENABLE([assertions], [AS_HELP_STRING([--enable-assertions],[enable additional software error checking])],, [enable_assertions=no]) AS_IF([test "$enable_assertions" = "yes"], [ AC_DEFINE([ENABLE_ASSERTIONS], [1], [Assertions]) ]) AC_ARG_ENABLE([fuzzing], [AS_HELP_STRING([--enable-fuzzing],[causes the encoder to make random decisions])],, [enable_fuzzing=no]) AS_IF([test "$enable_fuzzing" = "yes"], [ AC_DEFINE([FUZZING], [1], [Fuzzing]) ]) AC_ARG_ENABLE([doc], [AS_HELP_STRING([--disable-doc], [Do not build API documentation])],, [enable_doc=yes]) AS_IF([test "$enable_doc" = "yes"], [ AC_CHECK_PROG(HAVE_DOXYGEN, [doxygen], [yes], [no]) ],[ HAVE_DOXYGEN=no ]) AM_CONDITIONAL([HAVE_DOXYGEN], [test "$HAVE_DOXYGEN" = "yes"]) AC_ARG_ENABLE([extra-programs], [AS_HELP_STRING([--disable-extra-programs], [Do not build extra programs (demo and tests)])],, [enable_extra_programs=yes]) AM_CONDITIONAL([EXTRA_PROGRAMS], [test "$enable_extra_programs" = "yes"]) saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS -fvisibility=hidden" AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], [ AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([no]) CFLAGS="$saved_CFLAGS" ]) CFLAGS="$CFLAGS -W" warn_CFLAGS="-Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes" saved_CFLAGS="$CFLAGS" CFLAGS="$CFLAGS $warn_CFLAGS" AC_MSG_CHECKING([if ${CC} supports ${warn_CFLAGS}]) AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])], [ AC_MSG_RESULT([yes]) ], [ AC_MSG_RESULT([no]) CFLAGS="$saved_CFLAGS" ]) saved_LIBS="$LIBS" LIBS="$LIBS $LIBM" AC_CHECK_FUNCS([lrintf]) AC_CHECK_FUNCS([lrint]) LIBS="$saved_LIBS" AC_CHECK_FUNCS([__malloc_hook]) AC_SUBST([PC_BUILD]) AC_CONFIG_FILES([ Makefile opus.pc opus-uninstalled.pc celt/arm/armopts.s doc/Makefile doc/Doxyfile ]) 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} Use alloca: .................... ${use_alloca} General configuration: Floating point support: ........ ${enable_float} Fast float approximations: ..... ${enable_float_approx} Fixed point debugging: ......... ${enable_fixed_point_debug} Inline Assembly Optimizations: . ${inline_optimization} External Assembly Optimizations: ${asm_optimization} Run-time CPU detection: ........ ${rtcd_support} Custom modes: .................. ${enable_custom_modes} Assertion checking: ............ ${enable_assertions} Fuzzing: ....................... ${enable_fuzzing} API documentation: ............. ${enable_doc} Extra programs: ................ ${enable_extra_programs} ------------------------------------------------------------------------ Type "make; make install" to compile and install Type "make check" to run the test suite ])