1 dnl Process this file with autoconf to produce a configure script. -*-m4-*- 2 3 AC_INIT(src/opus_encoder.c) 4 5 AM_CONFIG_HEADER([config.h]) 6 7 dnl enable silent rules on automake 1.11 and later 8 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])]) 9 10 # Read our default version string from version.mk. 11 # Please update this file for releases. 12 AC_MSG_CHECKING([version.mk]) 13 MK_VERSION=$(awk 'BEGIN { FS = "=" } 14 /OPUS_VERSION/ { ver = $2} 15 END { 16 gsub(/"/, "", ver); 17 gsub(/^ /, "", ver); 18 gsub(/ $/, "", ver); 19 print ver; 20 }' $srcdir/version.mk) 21 if test -z "$MK_VERSION"; then 22 AC_MSG_RESULT([no]) 23 else 24 AC_MSG_RESULT([$MK_VERSION]) 25 OPUS_VERSION="$MK_VERSION" 26 fi 27 28 # Override with the git version, if available. 29 AC_MSG_CHECKING([git revision]) 30 GIT_VERSION=$(git describe --tags --match 'v*' 2>/dev/null | sed 's/^v//') 31 if test -z "$GIT_VERSION"; then 32 AC_MSG_RESULT([no]) 33 else 34 AC_MSG_RESULT([$GIT_VERSION]) 35 OPUS_VERSION="$GIT_VERSION" 36 fi 37 38 # Use 'unknown' if all else fails. 39 if test -z "$OPUS_VERSION"; then 40 OPUS_VERSION="unknown" 41 fi 42 43 # For automake. 44 PACKAGE=opus 45 VERSION=$OPUS_VERSION 46 47 # For autoconf 48 AC_SUBST(OPUS_VERSION) 49 50 # For config.h. 51 AC_DEFINE_UNQUOTED([OPUS_VERSION], ["$OPUS_VERSION"], 52 [Opus library version string]) 53 54 # For libtool. 55 dnl Please update these for releases. 56 OPUS_LT_CURRENT=3 57 OPUS_LT_REVISION=0 58 OPUS_LT_AGE=3 59 60 AC_SUBST(OPUS_LT_CURRENT) 61 AC_SUBST(OPUS_LT_REVISION) 62 AC_SUBST(OPUS_LT_AGE) 63 64 AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define) 65 AM_MAINTAINER_MODE([enable]) 66 67 AC_CANONICAL_HOST 68 AC_MINGW32 69 AM_PROG_LIBTOOL 70 AM_PROG_CC_C_O 71 72 AC_PROG_CC_C99 73 AC_C_CONST 74 AC_C_INLINE 75 76 #Use a hacked up version of autoconf's AC_C_RESTRICT because it's not 77 #strong enough a test to detect old buggy versions of GCC (e.g. 2.95.3) 78 AC_CACHE_CHECK([for C/C++ restrict keyword], ac_cv_c_restrict, 79 [ac_cv_c_restrict=no 80 # The order here caters to the fact that C++ does not require restrict. 81 for ac_kw in __restrict __restrict__ _Restrict restrict; do 82 AC_COMPILE_IFELSE([AC_LANG_PROGRAM( 83 [[typedef int * int_ptr; 84 int foo (int_ptr $ac_kw ip, int * $ac_kw baz[]) { 85 return ip[0]; 86 }]], 87 [[int s[1]; 88 int * $ac_kw t = s; 89 t[0] = 0; 90 return foo(t, (void *)0)]])], 91 [ac_cv_c_restrict=$ac_kw]) 92 test "$ac_cv_c_restrict" != no && break 93 done 94 ]) 95 AH_VERBATIM([restrict], 96 [/* Define to the equivalent of the C99 'restrict' keyword, or to 97 nothing if this is not supported. Do not define if restrict is 98 supported directly. */ 99 #undef restrict 100 /* Work around a bug in Sun C++: it does not support _Restrict or 101 __restrict__, even though the corresponding Sun C compiler ends up with 102 "#define restrict _Restrict" or "#define restrict __restrict__" in the 103 previous line. Perhaps some future version of Sun C++ will work with 104 restrict; if so, hopefully it defines __RESTRICT like Sun C does. */ 105 #if defined __SUNPRO_CC && !defined __RESTRICT 106 # define _Restrict 107 # define __restrict__ 108 #endif]) 109 case $ac_cv_c_restrict in 110 restrict) ;; 111 no) AC_DEFINE([restrict], []) ;; 112 *) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;; 113 esac 114 115 AC_DEFINE([OPUS_BUILD], [], [This is a build of OPUS]) 116 117 AC_MSG_CHECKING(for C99 variable-size arrays) 118 AC_TRY_COMPILE( [], [static int x; char a[++x]; a[sizeof a - 1] = 0; int N; return a[0];], 119 [has_var_arrays=yes;AC_DEFINE([VAR_ARRAYS], [], [Use C99 variable-size arrays]) 120 ], 121 has_var_arrays=no 122 ) 123 AC_MSG_RESULT($has_var_arrays) 124 125 AC_CHECK_HEADERS([alloca.h getopt.h]) 126 AC_MSG_CHECKING(for alloca) 127 AC_TRY_COMPILE( [#include <alloca.h>], [ 128 int foo=10; 129 int *array = alloca(foo); 130 ], 131 [ 132 has_alloca=yes; 133 if test x$has_var_arrays = "xno" ; then 134 AC_DEFINE([USE_ALLOCA], [], [Make use of alloca]) 135 fi 136 ], 137 has_alloca=no 138 ) 139 AC_MSG_RESULT($has_alloca) 140 141 AC_CHECK_FUNC(exp,[fp_libm_not_needed=yes;LIBM=],[fp_libm_not_needed=dunno]) 142 if test x"$fp_libm_not_needed" = xdunno; then 143 AC_CHECK_LIB([m], [exp], [LIBS="-lm $LIBS"; LIBM="-lm"],[LIBM=]) 144 fi 145 AC_SUBST([LIBM]) 146 147 has_float_approx=no 148 #case "$host_cpu" in 149 #i[[3456]]86 | x86_64 | powerpc64 | powerpc32 | ia64) 150 # has_float_approx=yes 151 # ;; 152 #esac 153 154 ac_enable_fixed="no"; 155 ac_enable_float="yes"; 156 AC_ARG_ENABLE(fixed-point, [ --enable-fixed-point compile without floating point (for machines without a fast enough FPU)], 157 [if test "$enableval" = yes; then 158 ac_enable_fixed="yes"; 159 ac_enable_float="no"; 160 AC_DEFINE([FIXED_POINT], [1], [Compile as fixed-point (for machines without a fast enough FPU)]) 161 fi]) 162 163 ac_enable_fixed_debug="no" 164 AC_ARG_ENABLE(fixed-point-debug, [ --enable-fixed-point-debug debug fixed-point implementation], 165 [if test "$enableval" = yes; then 166 ac_enable_fixed_debug="yes" 167 AC_DEFINE([FIXED_DEBUG], , [Debug fixed-point implementation]) 168 fi]) 169 170 ac_enable_custom_modes="no" 171 AC_ARG_ENABLE(custom-modes, [ --enable-custom-modes enable non-Opus modes, e.g. 44.1 kHz & 2^n frames], 172 [if test "$enableval" = yes; then 173 ac_enable_custom_modes="yes" 174 AC_DEFINE([CUSTOM_MODES], , [Custom modes]) 175 fi]) 176 177 float_approx=$has_float_approx 178 AC_ARG_ENABLE(float-approx, [ --enable-float-approx enable fast approximations for floating point], 179 [ if test "$enableval" = yes; then 180 AC_WARN([Floating point approximations are not supported on all platforms.]) 181 float_approx=yes 182 else 183 float_approx=no 184 fi], [ float_approx=$has_float_approx ]) 185 186 if test "x${float_approx}" = "xyes"; then 187 AC_DEFINE([FLOAT_APPROX], , [Float approximations]) 188 fi 189 190 ac_enable_assertions="no" 191 AC_ARG_ENABLE(assertions, [ --enable-assertions enable additional software error checking], 192 [if test "$enableval" = yes; then 193 ac_enable_assertions="yes" 194 AC_DEFINE([ENABLE_ASSERTIONS], , [Assertions]) 195 fi]) 196 197 ac_enable_fuzzing="no" 198 AC_ARG_ENABLE(fuzzing, [ --enable-fuzzing causes the encoder to make random decisions], 199 [if test "$enableval" = yes; then 200 ac_enable_fuzzing="yes" 201 AC_DEFINE([FUZZING], , [Fuzzing]) 202 fi]) 203 204 ac_enable_doc="yes" 205 AC_ARG_ENABLE([doc], 206 AS_HELP_STRING([--disable-doc], [Do not build API documentation]), 207 [ac_enable_doc=$enableval]) 208 AC_CHECK_PROG(HAVE_DOXYGEN, [doxygen], [yes], [no]) 209 if test "$HAVE_DOXYGEN" != "yes" -o "$ac_enable_doc" != "yes"; then 210 HAVE_DOXYGEN="false" 211 ac_enable_doc="no" 212 fi 213 AM_CONDITIONAL(HAVE_DOXYGEN, [test $HAVE_DOXYGEN = yes]) 214 215 saved_CFLAGS="$CFLAGS" 216 CFLAGS="$CFLAGS -fvisibility=hidden" 217 AC_MSG_CHECKING([if ${CC} supports -fvisibility=hidden]) 218 AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], 219 [ AC_MSG_RESULT([yes]) 220 SYMBOL_VISIBILITY="-fvisibility=hidden" ], 221 AC_MSG_RESULT([no])) 222 CFLAGS="$saved_CFLAGS $SYMBOL_VISIBILITY" 223 AC_SUBST(SYMBOL_VISIBILITY) 224 225 CFLAGS="$CFLAGS -W" 226 227 saved_CFLAGS="$CFLAGS" 228 CFLAGS="$CFLAGS -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes" 229 AC_MSG_CHECKING([if ${CC} supports -Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes]) 230 AC_COMPILE_IFELSE([AC_LANG_SOURCE([char foo;])], 231 [ AC_MSG_RESULT([yes]) 232 EXTRA_WARNS="-Wall -Wextra -Wcast-align -Wnested-externs -Wshadow -Wstrict-prototypes" ], 233 AC_MSG_RESULT([no])) 234 CFLAGS="$saved_CFLAGS $EXTRA_WARNS" 235 236 AC_CHECK_FUNCS([lrintf]) 237 AC_CHECK_FUNCS([lrint]) 238 AC_CHECK_FUNCS([__malloc_hook]) 239 240 AC_CHECK_SIZEOF(short) 241 AC_CHECK_SIZEOF(int) 242 AC_CHECK_SIZEOF(long) 243 AC_CHECK_SIZEOF(long long) 244 245 if test x$has_char16 = "xyes" ; then 246 case 1 in 247 $ac_cv_sizeof_short) SIZE16="short";; 248 $ac_cv_sizeof_int) SIZE16="int";; 249 esac 250 else 251 case 2 in 252 $ac_cv_sizeof_short) SIZE16="short";; 253 $ac_cv_sizeof_int) SIZE16="int";; 254 esac 255 fi 256 257 if test x$has_char16 = "xyes" ; then 258 case 2 in 259 $ac_cv_sizeof_int) SIZE32="int";; 260 $ac_cv_sizeof_long) SIZE32="long";; 261 $ac_cv_sizeof_short) SIZE32="short";; 262 esac 263 else 264 case 4 in 265 $ac_cv_sizeof_int) SIZE32="int";; 266 $ac_cv_sizeof_long) SIZE32="long";; 267 $ac_cv_sizeof_short) SIZE32="short";; 268 esac 269 fi 270 271 AC_SUBST(SIZE16) 272 AC_SUBST(SIZE32) 273 274 AM_CONDITIONAL([FIXED_POINT], [test x$ac_enable_fixed = xyes]) 275 AM_CONDITIONAL([CUSTOM_MODES], [test x$ac_enable_custom_modes = xyes]) 276 277 dnl subsitutions for the pkg-config files 278 if test x$ac_enable_float = xyes; then 279 PC_BUILD="floating-point" 280 PC_LIBM=$LIBM 281 else 282 PC_BUILD="fixed-point" 283 PC_LIBM= 284 fi 285 dnl opus_custom requires libm as well 286 if test x$ac_enable_custom_modes = xyes; then 287 PC_BUILD="${PC_BUILD}, custom modes" 288 PC_LIBM=$LIBM 289 fi 290 AC_SUBST([PC_BUILD]) 291 AC_SUBST([PC_LIBM]) 292 293 294 AC_CONFIG_FILES([Makefile opus.pc opus-uninstalled.pc 295 doc/Makefile doc/Doxyfile]) 296 297 AC_OUTPUT 298 299 AC_MSG_RESULT([ 300 ------------------------------------------------------------------------ 301 $PACKAGE $VERSION: Automatic configuration OK. 302 303 Compiler support: 304 305 C99 var arrays: ................ ${has_var_arrays} 306 C99 lrintf: .................... ${ac_cv_func_lrintf} 307 Alloca: ........................ ${has_alloca} 308 309 General configuration: 310 311 Floating point support: ........ ${ac_enable_float} 312 Fast float approximations: ..... ${float_approx} 313 Fixed point debugging: ......... ${ac_enable_fixed_debug} 314 Custom modes: .................. ${ac_enable_custom_modes} 315 Assertion checking: ............ ${ac_enable_assertions} 316 Fuzzing: ....................... ${ac_enable_fuzzing} 317 318 API documentation: ............. ${ac_enable_doc} 319 ------------------------------------------------------------------------ 320 ]) 321 322 echo "Type \"make; make install\" to compile and install"; 323 echo "Type \"make check\" to run the test suite"; 324
