Mercurial > hg > sv-dependency-builds
diff src/opus-1.3/configure.ac @ 154:4664ac0c1032
Add Opus sources and macOS builds
| author | Chris Cannam <cannam@all-day-breakfast.com> |
|---|---|
| date | Wed, 23 Jan 2019 13:48:08 +0000 |
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| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/opus-1.3/configure.ac Wed Jan 23 13:48:08 2019 +0000 @@ -0,0 +1,933 @@ +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=7 +OPUS_LT_REVISION=0 +OPUS_LT_AGE=7 + +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 <alloca.h>]], + [[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$NE10_prefix" != "x" ; then + NE10_CFLAGS="-I$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 $LIBM" + AC_LINK_IFELSE( + [ + AC_LANG_PROGRAM( + [[#include <NE10_dsp.h> + ]], + [[ + ne10_fft_cfg_float32_t cfg; + cfg = ne10_fft_alloc_c2c_float32_neon(480); + ]] + ) + ],[ + HAVE_ARM_NE10=1 + AC_MSG_RESULT([yes]) + ],[ + HAVE_ARM_NE10=0 + AC_MSG_RESULT([no]) + NE10_CFLAGS="" + NE10_LIBS="" + ] + ) + CFLAGS="$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], + [$ARM_NEON_INTR_CFLAGS], + [OPUS_ARM_MAY_HAVE_NEON_INTR], + [OPUS_ARM_PRESUME_NEON_INTR], + [[#include <arm_neon.h> + ]], + [[ + static float32x4_t A0, A1, SUMM; + SUMM = vmlaq_f32(SUMM, A0, A1); + return (int)vgetq_lane_f32(SUMM, 0); + ]] + ) + AS_IF([test x"$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 <arm_neon.h> + ]], + [[ + 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], + [$X86_SSE_CFLAGS], + [OPUS_X86_MAY_HAVE_SSE], + [OPUS_X86_PRESUME_SSE], + [[#include <xmmintrin.h> + #include <time.h> + ]], + [[ + __m128 mtest; + mtest = _mm_set1_ps((float)time(NULL)); + mtest = _mm_mul_ps(mtest, mtest); + return _mm_cvtss_si32(mtest); + ]] + ) + AS_IF([test x"$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], + [$X86_SSE2_CFLAGS], + [OPUS_X86_MAY_HAVE_SSE2], + [OPUS_X86_PRESUME_SSE2], + [[#include <emmintrin.h> + #include <time.h> + ]], + [[ + __m128i mtest; + mtest = _mm_set1_epi32((int)time(NULL)); + mtest = _mm_mul_epu32(mtest, mtest); + return _mm_cvtsi128_si32(mtest); + ]] + ) + AS_IF([test x"$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], + [$X86_SSE4_1_CFLAGS], + [OPUS_X86_MAY_HAVE_SSE4_1], + [OPUS_X86_PRESUME_SSE4_1], + [[#include <smmintrin.h> + #include <time.h> + ]], + [[ + __m128i mtest; + mtest = _mm_set1_epi32((int)time(NULL)); + mtest = _mm_mul_epi32(mtest, mtest); + return _mm_cvtsi128_si32(mtest); + ]] + ) + AS_IF([test x"$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], + [$X86_AVX_CFLAGS], + [OPUS_X86_MAY_HAVE_AVX], + [OPUS_X86_PRESUME_AVX], + [[#include <immintrin.h> + #include <time.h> + ]], + [[ + __m256 mtest; + mtest = _mm256_set1_ps((float)time(NULL)); + mtest = _mm256_addsub_ps(mtest, mtest); + return _mm_cvtss_si32(_mm256_extractf128_ps(mtest, 0)); + ]] + ) + AS_IF([test x"$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"$rtcd_support" != x""],[ + get_cpuid_by_asm="no" + AC_MSG_CHECKING([How to get X86 CPU Info]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + #include <stdio.h> + ]],[[ + unsigned int CPUInfo0; + unsigned int CPUInfo1; + unsigned int CPUInfo2; + unsigned int CPUInfo3; + unsigned int InfoType; + __asm__ __volatile__ ( + "cpuid": + "=a" (CPUInfo0), + "=b" (CPUInfo1), + "=c" (CPUInfo2), + "=d" (CPUInfo3) : + "a" (InfoType), "c" (0) + ); + ]])], + [get_cpuid_by_asm="yes" + AC_MSG_RESULT([Inline Assembly]) + AC_DEFINE([CPU_INFO_BY_ASM], [1], [Get CPU Info by asm method])], + [AC_LINK_IFELSE([AC_LANG_PROGRAM([[ + #include <cpuid.h> + ]],[[ + unsigned int CPUInfo0; + unsigned int CPUInfo1; + unsigned int CPUInfo2; + unsigned int CPUInfo3; + unsigned int InfoType; + __get_cpuid(InfoType, &CPUInfo0, &CPUInfo1, &CPUInfo2, &CPUInfo3); + ]])], + [AC_MSG_RESULT([C method]) + AC_DEFINE([CPU_INFO_BY_C], [1], [Get CPU Info by c method])], + [AC_MSG_ERROR([no supported Get CPU Info method, please disable run-time CPU capabilities detection or intrinsics])])])]) + ], + [ + AC_MSG_WARN([No intrinsics support for your architecture]) + intrinsics_support="no" + ]) +], +[ + intrinsics_support="no" +]) + +AM_CONDITIONAL([CPU_ARM], [test "$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 "$enable_assertions" = "yes"], [ + AC_DEFINE([ENABLE_ASSERTIONS], [1], [Assertions]) +]) + +AC_ARG_ENABLE([hardening], + [AS_HELP_STRING([--disable-hardening],[disable run-time checks that are cheap and safe for use in production])],, + [enable_hardening=yes]) + +AS_IF([test "$enable_hardening" = "yes"], [ + AC_DEFINE([ENABLE_HARDENING], [1], [Hardening]) +]) + +AC_ARG_ENABLE([fuzzing], + [AS_HELP_STRING([--enable-fuzzing],[causes the encoder to make random decisions (do not use in production)])],, + [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([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 "$enable_extra_programs" = "yes"]) + + +AC_ARG_ENABLE([rfc8251], + AS_HELP_STRING([--disable-rfc8251], [Disable bitstream fixes from RFC 8251]),, + [enable_rfc8251=yes]) + +AS_IF([test "$enable_rfc8251" = "no"], [ + AC_DEFINE([DISABLE_UPDATE_DRAFT], [1], [Disable bitstream fixes from RFC 8251]) +]) + + +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" + ]) + +on_x86=no +case "$host_cpu" in +i[[3456]]86 | x86_64) + on_x86=yes + ;; +esac + +on_windows=no +case $host in +*cygwin*|*mingw*) + on_windows=yes + ;; +esac + +dnl Enable stack-protector-all only on x86 where it's well supported. +dnl on some platforms it causes crashes. Hopefully the OS's default's +dnl include this on platforms that work but have been missed here. +AC_ARG_ENABLE([stack-protector], + [AS_HELP_STRING([--disable-stack-protector],[Disable compiler stack hardening])],, + [ + AS_IF([test "$ac_cv_c_compiler_gnu" = "yes" && test "$on_x86" = "yes" && test "$on_windows" = "no"], + [enable_stack_protector=yes],[enable_stack_protector=no]) + ]) + +AS_IF([test "$enable_stack_protector" = "yes"], + [ + saved_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fstack-protector-strong" + AC_MSG_CHECKING([if ${CC} supports -fstack-protector-strong]) + AC_LINK_IFELSE([AC_LANG_PROGRAM([],[[char foo;]])], + [ AC_MSG_RESULT([yes]) ], + [ + AC_MSG_RESULT([no]) + enable_stack_protector=no + CFLAGS="$saved_CFLAGS" + ]) + ]) + +AS_IF([test x$ac_cv_c_compiler_gnu = xyes], + [AX_ADD_FORTIFY_SOURCE] +) + +CFLAGS="$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} + Hardening: ..................... ${enable_hardening} + Fuzzing: ....................... ${enable_fuzzing} + Check ASM: ..................... ${enable_check_asm} + + 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 +]) +