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=6 OPUS_LT_REVISION=0 OPUS_LT_AGE=6 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 "$enable_float_approx" = "yes"],[ AC_DEFINE([FLOAT_APPROX], [1], [Float approximations]) ]) AC_ARG_ENABLE([asm], [AS_HELP_STRING([--disable-asm], [Disable assembly optimizations])],, [enable_asm=yes]) AC_ARG_ENABLE([rtcd], [AS_HELP_STRING([--disable-rtcd], [Disable run-time CPU capabilities detection])],, [enable_rtcd=yes]) AC_ARG_ENABLE([intrinsics], [AS_HELP_STRING([--disable-intrinsics], [Disable intrinsics optimizations])],, [enable_intrinsics=yes]) rtcd_support=no cpu_arm=no AS_IF([test x"${enable_asm}" = x"yes"],[ inline_optimization="No inline 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"$rtcd_support"], [rtcd_support="no"] ) AC_MSG_CHECKING([for apple style tools]) AC_PREPROC_IFELSE([AC_LANG_PROGRAM([ #ifndef __APPLE__ #error 1 #endif],[])], [AC_MSG_RESULT([yes]); ARM2GNU_PARAMS="--apple"], [AC_MSG_RESULT([no]); ARM2GNU_PARAMS=""]) AC_SUBST(ARM2GNU_PARAMS) ], [ AC_MSG_WARN( [*** ARM assembly requires perl -- disabling optimizations]) asm_optimization="(missing perl dependency for ARM)" ]) ]) ;; esac ],[ inline_optimization="disabled" asm_optimization="disabled" ]) AM_CONDITIONAL([OPUS_ARM_INLINE_ASM], [test x"${inline_optimization%% *}" = x"ARM"]) AM_CONDITIONAL([OPUS_ARM_EXTERNAL_ASM], [test x"${asm_optimization%% *}" = x"ARM"]) AM_CONDITIONAL([HAVE_SSE], [false]) AM_CONDITIONAL([HAVE_SSE2], [false]) AM_CONDITIONAL([HAVE_SSE4_1], [false]) AM_CONDITIONAL([HAVE_AVX], [false]) m4_define([DEFAULT_X86_SSE_CFLAGS], [-msse]) m4_define([DEFAULT_X86_SSE2_CFLAGS], [-msse2]) m4_define([DEFAULT_X86_SSE4_1_CFLAGS], [-msse4.1]) m4_define([DEFAULT_X86_AVX_CFLAGS], [-mavx]) m4_define([DEFAULT_ARM_NEON_INTR_CFLAGS], [-mfpu=neon]) # With GCC on ARM32 softfp architectures (e.g. Android, or older Ubuntu) you need to specify # -mfloat-abi=softfp for -mfpu=neon to work. However, on ARM32 hardfp architectures (e.g. newer Ubuntu), # this option will break things. # As a heuristic, if host matches arm*eabi* but not arm*hf*, it's probably soft-float. m4_define([DEFAULT_ARM_NEON_SOFTFP_INTR_CFLAGS], [-mfpu=neon -mfloat-abi=softfp]) AS_CASE([$host], [arm*hf*], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_INTR_CFLAGS")], [arm*eabi*], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_SOFTFP_INTR_CFLAGS")], [AS_VAR_SET([RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS], "DEFAULT_ARM_NEON_INTR_CFLAGS")]) AC_ARG_VAR([X86_SSE_CFLAGS], [C compiler flags to compile SSE intrinsics @<:@default=]DEFAULT_X86_SSE_CFLAGS[@:>@]) AC_ARG_VAR([X86_SSE2_CFLAGS], [C compiler flags to compile SSE2 intrinsics @<:@default=]DEFAULT_X86_SSE2_CFLAGS[@:>@]) AC_ARG_VAR([X86_SSE4_1_CFLAGS], [C compiler flags to compile SSE4.1 intrinsics @<:@default=]DEFAULT_X86_SSE4_1_CFLAGS[@:>@]) AC_ARG_VAR([X86_AVX_CFLAGS], [C compiler flags to compile AVX intrinsics @<:@default=]DEFAULT_X86_AVX_CFLAGS[@:>@]) AC_ARG_VAR([ARM_NEON_INTR_CFLAGS], [C compiler flags to compile ARM NEON intrinsics @<:@default=]DEFAULT_ARM_NEON_INTR_CFLAGS / DEFAULT_ARM_NEON_SOFTFP_INTR_CFLAGS[@:>@]) AS_VAR_SET_IF([X86_SSE_CFLAGS], [], [AS_VAR_SET([X86_SSE_CFLAGS], "DEFAULT_X86_SSE_CFLAGS")]) AS_VAR_SET_IF([X86_SSE2_CFLAGS], [], [AS_VAR_SET([X86_SSE2_CFLAGS], "DEFAULT_X86_SSE2_CFLAGS")]) AS_VAR_SET_IF([X86_SSE4_1_CFLAGS], [], [AS_VAR_SET([X86_SSE4_1_CFLAGS], "DEFAULT_X86_SSE4_1_CFLAGS")]) AS_VAR_SET_IF([X86_AVX_CFLAGS], [], [AS_VAR_SET([X86_AVX_CFLAGS], "DEFAULT_X86_AVX_CFLAGS")]) AS_VAR_SET_IF([ARM_NEON_INTR_CFLAGS], [], [AS_VAR_SET([ARM_NEON_INTR_CFLAGS], ["$RESOLVED_DEFAULT_ARM_NEON_INTR_CFLAGS"])]) AC_DEFUN([OPUS_PATH_NE10], [ AC_ARG_WITH(NE10, AC_HELP_STRING([--with-NE10=PFX],[Prefix where libNE10 is installed (optional)]), NE10_prefix="$withval", NE10_prefix="") AC_ARG_WITH(NE10-libraries, AC_HELP_STRING([--with-NE10-libraries=DIR], [Directory where libNE10 library is installed (optional)]), NE10_libraries="$withval", NE10_libraries="") AC_ARG_WITH(NE10-includes, AC_HELP_STRING([--with-NE10-includes=DIR], [Directory where libNE10 header files are installed (optional)]), NE10_includes="$withval", NE10_includes="") if test "x$NE10_libraries" != "x" ; then NE10_LIBS="-L$NE10_libraries" elif test "x$NE10_prefix" = "xno" || test "x$NE10_prefix" = "xyes" ; then NE10_LIBS="" elif test "x$NE10_prefix" != "x" ; then NE10_LIBS="-L$NE10_prefix/lib" elif test "x$prefix" != "xNONE" ; then NE10_LIBS="-L$prefix/lib" fi if test "x$NE10_prefix" != "xno" ; then NE10_LIBS="$NE10_LIBS -lNE10" fi if test "x$NE10_includes" != "x" ; then NE10_CFLAGS="-I$NE10_includes" elif test "x$NE10_prefix" = "xno" || test "x$NE10_prefix" = "xyes" ; then NE10_CFLAGS="" elif test "x$ogg_prefix" != "x" ; then NE10_CFLAGS="-I$NE10_prefix/include" elif test "x$prefix" != "xNONE"; then NE10_CFLAGS="-I$prefix/include" fi AC_MSG_CHECKING(for NE10) save_CFLAGS="$CFLAGS"; CFLAGS="$CFLAGS $NE10_CFLAGS" save_LIBS="$LIBS"; LIBS="$LIBS $NE10_LIBS $LIBM" AC_LINK_IFELSE( [ AC_LANG_PROGRAM( [[#include ]], [[ ne10_fft_cfg_float32_t cfg; cfg = ne10_fft_alloc_c2c_float32_neon(480); ]] ) ],[ HAVE_ARM_NE10=1 AC_MSG_RESULT([yes]) ],[ HAVE_ARM_NE10=0 AC_MSG_RESULT([no]) NE10_CFLAGS="" NE10_LIBS="" ] ) CFLAGS="$save_CFLAGS"; LIBS="$save_LIBS" #Now we know if libNE10 is installed or not AS_IF([test x"$HAVE_ARM_NE10" = x"1"], [ AC_DEFINE([HAVE_ARM_NE10], 1, [NE10 library is installed on host. Make sure it is on target!]) AC_SUBST(HAVE_ARM_NE10) AC_SUBST(NE10_CFLAGS) AC_SUBST(NE10_LIBS) ] ) ] ) AS_IF([test x"$enable_intrinsics" = x"yes"],[ intrinsics_support="" AS_CASE([$host_cpu], [arm*|aarch64*], [ cpu_arm=yes OPUS_CHECK_INTRINSICS( [ARM Neon], [$ARM_NEON_INTR_CFLAGS], [OPUS_ARM_MAY_HAVE_NEON_INTR], [OPUS_ARM_PRESUME_NEON_INTR], [[#include ]], [[ static float32x4_t A0, A1, SUMM; SUMM = vmlaq_f32(SUMM, A0, A1); return (int)vgetq_lane_f32(SUMM, 0); ]] ) AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON_INTR" = x"1" && test x"$OPUS_ARM_PRESUME_NEON_INTR" != x"1"], [ OPUS_ARM_NEON_INTR_CFLAGS="$ARM_NEON_INTR_CFLAGS" AC_SUBST([OPUS_ARM_NEON_INTR_CFLAGS]) ] ) AS_IF([test x"$OPUS_ARM_MAY_HAVE_NEON_INTR" = x"1"], [ AC_DEFINE([OPUS_ARM_MAY_HAVE_NEON_INTR], 1, [Compiler supports ARMv7/Aarch64 Neon Intrinsics]) intrinsics_support="$intrinsics_support (NEON)" AS_IF([test x"$enable_rtcd" != x"no" && test x"$OPUS_ARM_PRESUME_NEON_INTR" != x"1"], [AS_IF([test x"$rtcd_support" = x"no"], [rtcd_support="ARM (NEON Intrinsics)"], [rtcd_support="$rtcd_support (NEON Intrinsics)"])]) AS_IF([test x"$OPUS_ARM_PRESUME_NEON_INTR" = x"1"], [AC_DEFINE([OPUS_ARM_PRESUME_NEON_INTR], 1, [Define if binary requires NEON intrinsics support])]) OPUS_PATH_NE10() AS_IF([test x"$NE10_LIBS" != x""], [ intrinsics_support="$intrinsics_support (NE10)" AS_IF([test x"enable_rtcd" != x"" \ && test x"$OPUS_ARM_PRESUME_NEON_INTR" != x"1"], [rtcd_support="$rtcd_support (NE10)"]) ]) OPUS_CHECK_INTRINSICS( [Aarch64 Neon], [$ARM_NEON_INTR_CFLAGS], [OPUS_ARM_MAY_HAVE_AARCH64_NEON_INTR], [OPUS_ARM_PRESUME_AARCH64_NEON_INTR], [[#include ]], [[ static int32_t IN; static int16_t OUT; OUT = vqmovns_s32(IN); ]] ) AS_IF([test x"$OPUS_ARM_PRESUME_AARCH64_NEON_INTR" = x"1"], [ AC_DEFINE([OPUS_ARM_PRESUME_AARCH64_NEON_INTR], 1, [Define if binary requires Aarch64 Neon Intrinsics]) intrinsics_support="$intrinsics_support (NEON [Aarch64])" ]) AS_IF([test x"$intrinsics_support" = x""], [intrinsics_support=no], [intrinsics_support="ARM$intrinsics_support"]) ], [ AC_MSG_WARN([Compiler does not support ARM intrinsics]) intrinsics_support=no ]) ], [i?86|x86_64], [ OPUS_CHECK_INTRINSICS( [SSE], [$X86_SSE_CFLAGS], [OPUS_X86_MAY_HAVE_SSE], [OPUS_X86_PRESUME_SSE], [[#include #include ]], [[ __m128 mtest; mtest = _mm_set1_ps((float)time(NULL)); mtest = _mm_mul_ps(mtest, mtest); return _mm_cvtss_si32(mtest); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE" = x"1" && test x"$OPUS_X86_PRESUME_SSE" != x"1"], [ OPUS_X86_SSE_CFLAGS="$X86_SSE_CFLAGS" AC_SUBST([OPUS_X86_SSE_CFLAGS]) ] ) OPUS_CHECK_INTRINSICS( [SSE2], [$X86_SSE2_CFLAGS], [OPUS_X86_MAY_HAVE_SSE2], [OPUS_X86_PRESUME_SSE2], [[#include #include ]], [[ __m128i mtest; mtest = _mm_set1_epi32((int)time(NULL)); mtest = _mm_mul_epu32(mtest, mtest); return _mm_cvtsi128_si32(mtest); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE2" = x"1" && test x"$OPUS_X86_PRESUME_SSE2" != x"1"], [ OPUS_X86_SSE2_CFLAGS="$X86_SSE2_CFLAGS" AC_SUBST([OPUS_X86_SSE2_CFLAGS]) ] ) OPUS_CHECK_INTRINSICS( [SSE4.1], [$X86_SSE4_1_CFLAGS], [OPUS_X86_MAY_HAVE_SSE4_1], [OPUS_X86_PRESUME_SSE4_1], [[#include #include ]], [[ __m128i mtest; mtest = _mm_set1_epi32((int)time(NULL)); mtest = _mm_mul_epi32(mtest, mtest); return _mm_cvtsi128_si32(mtest); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE4_1" = x"1" && test x"$OPUS_X86_PRESUME_SSE4_1" != x"1"], [ OPUS_X86_SSE4_1_CFLAGS="$X86_SSE4_1_CFLAGS" AC_SUBST([OPUS_X86_SSE4_1_CFLAGS]) ] ) OPUS_CHECK_INTRINSICS( [AVX], [$X86_AVX_CFLAGS], [OPUS_X86_MAY_HAVE_AVX], [OPUS_X86_PRESUME_AVX], [[#include #include ]], [[ __m256 mtest; mtest = _mm256_set1_ps((float)time(NULL)); mtest = _mm256_addsub_ps(mtest, mtest); return _mm_cvtss_si32(_mm256_extractf128_ps(mtest, 0)); ]] ) AS_IF([test x"$OPUS_X86_MAY_HAVE_AVX" = x"1" && test x"$OPUS_X86_PRESUME_AVX" != x"1"], [ OPUS_X86_AVX_CFLAGS="$X86_AVX_CFLAGS" AC_SUBST([OPUS_X86_AVX_CFLAGS]) ] ) AS_IF([test x"$rtcd_support" = x"no"], [rtcd_support=""]) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE" = x"1"], [ AC_DEFINE([OPUS_X86_MAY_HAVE_SSE], 1, [Compiler supports X86 SSE Intrinsics]) intrinsics_support="$intrinsics_support SSE" AS_IF([test x"$OPUS_X86_PRESUME_SSE" = x"1"], [AC_DEFINE([OPUS_X86_PRESUME_SSE], 1, [Define if binary requires SSE intrinsics support])], [rtcd_support="$rtcd_support SSE"]) ], [ AC_MSG_WARN([Compiler does not support SSE intrinsics]) ]) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE2" = x"1"], [ AC_DEFINE([OPUS_X86_MAY_HAVE_SSE2], 1, [Compiler supports X86 SSE2 Intrinsics]) intrinsics_support="$intrinsics_support SSE2" AS_IF([test x"$OPUS_X86_PRESUME_SSE2" = x"1"], [AC_DEFINE([OPUS_X86_PRESUME_SSE2], 1, [Define if binary requires SSE2 intrinsics support])], [rtcd_support="$rtcd_support SSE2"]) ], [ AC_MSG_WARN([Compiler does not support SSE2 intrinsics]) ]) AS_IF([test x"$OPUS_X86_MAY_HAVE_SSE4_1" = x"1"], [ AC_DEFINE([OPUS_X86_MAY_HAVE_SSE4_1], 1, [Compiler supports X86 SSE4.1 Intrinsics]) intrinsics_support="$intrinsics_support SSE4.1" AS_IF([test x"$OPUS_X86_PRESUME_SSE4_1" = x"1"], [AC_DEFINE([OPUS_X86_PRESUME_SSE4_1], 1, [Define if binary requires SSE4.1 intrinsics support])], [rtcd_support="$rtcd_support SSE4.1"]) ], [ AC_MSG_WARN([Compiler does not support SSE4.1 intrinsics]) ]) AS_IF([test x"$OPUS_X86_MAY_HAVE_AVX" = x"1"], [ AC_DEFINE([OPUS_X86_MAY_HAVE_AVX], 1, [Compiler supports X86 AVX Intrinsics]) intrinsics_support="$intrinsics_support AVX" AS_IF([test x"$OPUS_X86_PRESUME_AVX" = x"1"], [AC_DEFINE([OPUS_X86_PRESUME_AVX], 1, [Define if binary requires AVX intrinsics support])], [rtcd_support="$rtcd_support AVX"]) ], [ AC_MSG_WARN([Compiler does not support AVX intrinsics]) ]) AS_IF([test x"$intrinsics_support" = x""], [intrinsics_support=no], [intrinsics_support="x86$intrinsics_support"] ) AS_IF([test x"$rtcd_support" = x""], [rtcd_support=no], [rtcd_support="x86$rtcd_support"], ) AS_IF([test x"$enable_rtcd" = x"yes" && test x"$rtcd_support" != x""],[ get_cpuid_by_asm="no" AC_MSG_CHECKING([How to get X86 CPU Info]) AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include ]],[[ unsigned int CPUInfo0; unsigned int CPUInfo1; unsigned int CPUInfo2; unsigned int CPUInfo3; unsigned int InfoType; __asm__ __volatile__ ( "cpuid": "=a" (CPUInfo0), "=b" (CPUInfo1), "=c" (CPUInfo2), "=d" (CPUInfo3) : "a" (InfoType), "c" (0) ); ]])], [get_cpuid_by_asm="yes" AC_MSG_RESULT([Inline Assembly]) AC_DEFINE([CPU_INFO_BY_ASM], [1], [Get CPU Info by asm method])], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[ #include ]],[[ unsigned int CPUInfo0; unsigned int CPUInfo1; unsigned int CPUInfo2; unsigned int CPUInfo3; unsigned int InfoType; __get_cpuid(InfoType, &CPUInfo0, &CPUInfo1, &CPUInfo2, &CPUInfo3); ]])], [AC_MSG_RESULT([C method]) AC_DEFINE([CPU_INFO_BY_C], [1], [Get CPU Info by c method])], [AC_MSG_ERROR([no supported Get CPU Info method, please disable run-time CPU capabilities detection or intrinsics])])])]) ], [ AC_MSG_WARN([No intrinsics support for your architecture]) intrinsics_support="no" ]) ], [ intrinsics_support="no" ]) AM_CONDITIONAL([CPU_ARM], [test "$cpu_arm" = "yes"]) AM_CONDITIONAL([HAVE_ARM_NEON_INTR], [test x"$OPUS_ARM_MAY_HAVE_NEON_INTR" = x"1"]) AM_CONDITIONAL([HAVE_ARM_NE10], [test x"$HAVE_ARM_NE10" = x"1"]) AM_CONDITIONAL([HAVE_SSE], [test x"$OPUS_X86_MAY_HAVE_SSE" = x"1"]) AM_CONDITIONAL([HAVE_SSE2], [test x"$OPUS_X86_MAY_HAVE_SSE2" = x"1"]) AM_CONDITIONAL([HAVE_SSE4_1], [test x"$OPUS_X86_MAY_HAVE_SSE4_1" = x"1"]) AM_CONDITIONAL([HAVE_AVX], [test x"$OPUS_X86_MAY_HAVE_AVX" = x"1"]) 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([check-asm], [AS_HELP_STRING([--enable-check-asm], [enable bit-exactness checks between optimized and c implementations])],, [enable_check_asm=no]) AS_IF([test "$enable_check_asm" = "yes"], [ AC_DEFINE([OPUS_CHECK_ASM], [1], [Run bit-exactness checks between optimized and c implementations]) ]) AC_ARG_ENABLE([ambisonics], [AS_HELP_STRING([--enable-ambisonics],[enable experimental ambisonic encoding and decoding support])],, [enable_ambisonics=no]) AS_IF([test "$enable_ambisonics" = "yes"], [ AC_DEFINE([ENABLE_EXPERIMENTAL_AMBISONICS], [1], [Ambisonics Support]) ]) AC_ARG_ENABLE([doc], [AS_HELP_STRING([--disable-doc], [Do not build API documentation])],, [enable_doc=yes]) AS_IF([test "$enable_doc" = "yes"], [ AC_CHECK_PROG(HAVE_DOXYGEN, [doxygen], [yes], [no]) AC_CHECK_PROG(HAVE_DOT, [dot], [yes], [no]) ],[ HAVE_DOXYGEN=no ]) AM_CONDITIONAL([HAVE_DOXYGEN], [test "$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 "$enable_extra_programs" = "yes"]) AC_ARG_ENABLE([update-draft], AS_HELP_STRING([--enable-update-draft], [Enable bitstream changes from draft-ietf-codec-opus-update]),, [enable_update_draft=no]) AS_IF([test "$enable_update_draft" = "yes"], [ AC_DEFINE([ENABLE_UPDATE_DRAFT], [1], [Enable bitstream changes from draft-ietf-codec-opus-update]) ]) 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} Intrinsics Optimizations.......: ${intrinsics_support} Run-time CPU detection: ........ ${rtcd_support} Custom modes: .................. ${enable_custom_modes} Assertion checking: ............ ${enable_assertions} Fuzzing: ....................... ${enable_fuzzing} Check ASM: ..................... ${enable_check_asm} Ambisonics support: ............ ${enable_ambisonics} 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 ])