| 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=4 |
| OPUS_LT_REVISION=0 |
| OPUS_LT_AGE=4 |
| |
| 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 |
| |
| 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 "$enable_float_approx" = "yes"],[ |
| AC_DEFINE([FLOAT_APPROX], [1], [Float approximations]) |
| ]) |
| |
| AC_ARG_ENABLE([asm], |
| [AS_HELP_STRING([--disable-asm], [Disable assembly optimizations])],, |
| [enable_asm=yes]) |
| |
| rtcd_support=no |
| cpu_arm=no |
| |
| AS_IF([test "$enable_asm" = "yes"],[ |
| asm_optimization="no asm for your platform, please send patches" |
| case $host_cpu in |
| arm*) |
| cpu_arm=yes |
| AS_GCC_INLINE_ASSEMBLY([asm_optimization="ARM"], |
| [asm_optimization="disabled"]) |
| if test "$asm_optimization" = "ARM" ; then |
| rtcd_support=yes |
| AC_DEFINE([ARMv4_ASM], 1, [Use generic ARMv4 asm optimizations]) |
| AS_ASM_ARM_EDSP([ARMv5E_ASM=1],[ARMv5E_ASM=0]) |
| if test "$ARMv5E_ASM" = "1" ; then |
| AC_DEFINE([ARMv5E_ASM], [1], [Use ARMv5E asm optimizations]) |
| asm_optimization="$asm_optimization (EDSP)" |
| fi |
| AS_ASM_ARM_MEDIA([ARMv6_ASM=1],[ARMv6_ASM=0]) |
| if test "$ARMv6_ASM" = "1" ; then |
| AC_DEFINE([ARMv6_ASM], [1], [Use ARMv6 asm optimizations]) |
| asm_optimization="$asm_optimization (Media)" |
| fi |
| AS_ASM_ARM_NEON([ARM_HAVE_NEON=1],[ARM_HAVE_NEON=0]) |
| if test "$ARM_HAVE_NEON" = "1" ; then |
| AC_DEFINE([ARM_HAVE_NEON], 1, [Use ARM NEON optimizations]) |
| asm_optimization="$asm_optimization (NEON)" |
| fi |
| fi |
| ;; |
| esac |
| ],[ |
| asm_optimization="disabled" |
| ]) |
| |
| AM_CONDITIONAL([CPU_ARM], [test "$cpu_arm" = "yes"]) |
| |
| AC_ARG_ENABLE([rtcd], |
| [AS_HELP_STRING([--disable-rtcd], [Disable run-time CPU capabilities detection])],, |
| [enable_rtcd=yes]) |
| |
| AS_IF([test "$enable_rtcd" = "yes"],[ |
| AS_IF([test "$rtcd_support" = "yes"],[ |
| AC_DEFINE([OPUS_HAVE_RTCD], [1], [Use run-time CPU capabilities detection]) |
| ],[ |
| rtcd_support="no rtcd for your platform, please send patches" |
| ]) |
| ],[ |
| rtcd_support="no" |
| ]) |
| |
| AC_ARG_ENABLE([assertions], |
| [AS_HELP_STRING([--enable-assertions],[enable additional software error checking])],, |
| [enable_assertions=no]) |
| |
| AS_IF([test "$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 |
| 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} |
| Assembly optimization: ......... ${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 |
| ]) |
| |