| blob | 4a95cb8bd7ec9f77e1292957fe146fb00ad14d4f |
1 # FLAC - Free Lossless Audio Codec
2 # Copyright (C) 2001,2002,2003,2004,2005,2006,2007,2008,2009 Josh Coalson
3 #
4 # This file is part the FLAC project. FLAC is comprised of several
5 # components distributed under different licenses. The codec libraries
6 # are distributed under Xiph.Org's BSD-like license (see the file
7 # COPYING.Xiph in this distribution). All other programs, libraries, and
8 # plugins are distributed under the GPL (see COPYING.GPL). The documentation
9 # is distributed under the Gnu FDL (see COPYING.FDL). Each file in the
10 # FLAC distribution contains at the top the terms under which it may be
11 # distributed.
12 #
13 # Since this particular file is relevant to all components of FLAC,
14 # it may be distributed under the Xiph.Org license, which is the least
15 # restrictive of those mentioned above. See the file COPYING.Xiph in this
16 # distribution.
18 # NOTE that for many of the AM_CONDITIONALs we use the prefix FLaC__
19 # instead of FLAC__ since autoconf triggers off 'AC_' in strings
21 AC_PREREQ(2.60)
22 AC_INIT([flac], [1.3.3], [flac-dev@xiph.org], [flac], [https://www.xiph.org/flac/])
23 AC_CONFIG_HEADERS([config.h])
24 AC_CONFIG_SRCDIR([src/flac/main.c])
25 AC_CONFIG_MACRO_DIR([m4])
26 AM_INIT_AUTOMAKE([foreign 1.10 -Wall tar-pax no-dist-gzip dist-xz subdir-objects])
27 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
29 AC_MSG_CHECKING([whether configure should try to set CFLAGS/CXXFLAGS/CPPFLAGS/LDFLAGS])
30 AS_IF([test "x${CFLAGS+set}" = "xset" || test "x${CXXFLAGS+set}" = "xset" || test "x${CPPFLAGS+set}" = "xset" || test "x${LDFLAGS+set}" = "xset"],
31 [enable_flags_setting=no],
32 [enable_flags_setting=yes]
33 )
34 AC_MSG_RESULT([${enable_flags_setting}])
35 AX_CHECK_ENABLE_DEBUG
36 user_cflags=$CFLAGS
38 #Prefer whatever the current ISO standard is.
39 AC_PROG_CC_STDC
40 AC_USE_SYSTEM_EXTENSIONS
41 m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
42 LT_INIT([win32-dll disable-static pic-only])
43 AM_PROG_AS
44 AC_PROG_CXX
45 XIPH_C_COMPILER_IS_CLANG
46 XIPH_GCC_REALLY_IS_GCC
47 AC_PROG_MAKE_SET
48 AC_PROG_MKDIR_P
50 AC_SYS_LARGEFILE
51 AC_FUNC_FSEEKO
53 AC_CHECK_SIZEOF(off_t,1) # Fake default value.
54 AC_CHECK_SIZEOF([void*])
55 AC_SEARCH_LIBS([lround],[m], [AC_DEFINE(HAVE_LROUND,1,lround support)])
57 AC_LANG_PUSH([C++])
58 # c++ flavor first
59 AC_C_VARARRAYS
60 if test $ac_cv_c_vararrays = yes; then
61 AC_DEFINE([HAVE_CXX_VARARRAYS], 1, [Define to 1 if C++ supports variable-length arrays.])
62 fi
63 AC_LANG_POP([C++])
65 # c flavor
66 AC_HEADER_STDC
67 AM_PROG_CC_C_O
68 AC_C_INLINE
69 AC_C_VARARRAYS
70 AC_C_TYPEOF
72 AC_CHECK_HEADERS([stdint.h inttypes.h byteswap.h sys/param.h sys/ioctl.h termios.h x86intrin.h cpuid.h])
74 XIPH_C_BSWAP32
75 XIPH_C_BSWAP16
77 ac_cv_c_big_endian=0
78 ac_cv_c_little_endian=0
79 AC_C_BIGENDIAN([ac_cv_c_big_endian=1], [ac_cv_c_little_endian=1], [
80 AC_MSG_WARN([[*****************************************************************]])
81 AC_MSG_WARN([[*** Not able to determine endian-ness of target processor. ]])
82 AC_MSG_WARN([[*** The constants CPU_IS_BIG_ENDIAN and CPU_IS_LITTLE_ENDIAN in ]])
83 AC_MSG_WARN([[*** config.h may need to be hand editied. ]])
84 AC_MSG_WARN([[*****************************************************************]])
85 ])
86 AC_DEFINE_UNQUOTED(CPU_IS_BIG_ENDIAN, ${ac_cv_c_big_endian},
87 [Target processor is big endian.])
88 AC_DEFINE_UNQUOTED(CPU_IS_LITTLE_ENDIAN, ${ac_cv_c_little_endian},
89 [Target processor is little endian.])
90 AC_DEFINE_UNQUOTED(WORDS_BIGENDIAN, ${ac_cv_c_big_endian},
91 [Target processor is big endian.])
93 AC_ARG_ENABLE(asm-optimizations, AC_HELP_STRING([--disable-asm-optimizations], [Don't use any assembly optimization routines]), asm_opt=no, asm_opt=yes)
94 dnl ' Terminate the damn single quote
95 AM_CONDITIONAL(FLaC__NO_ASM, test "x$asm_opt" = xno)
96 if test "x$asm_opt" = xno ; then
97 AC_DEFINE(FLAC__NO_ASM)
98 AH_TEMPLATE(FLAC__NO_ASM, [define to disable use of assembly code])
99 fi
101 # For the XMMS plugin.
102 AC_CHECK_TYPES(socklen_t, [], [])
104 dnl check for getopt in standard library
105 dnl AC_CHECK_FUNCS(getopt_long , , [LIBOBJS="$LIBOBJS getopt.o getopt1.o"] )
106 AC_CHECK_FUNCS(getopt_long, [], [])
108 AC_CHECK_SIZEOF(void*,1)
110 asm_optimisation=no
111 case "$host_cpu" in
112 amd64|x86_64)
113 case "$host" in
114 *gnux32)
115 # x32 user space and 64 bit kernel.
116 cpu_x86_64=true
117 AC_DEFINE(FLAC__CPU_X86_64)
118 AH_TEMPLATE(FLAC__CPU_X86_64, [define if building for x86_64])
119 asm_optimisation=$asm_opt
120 ;;
121 *)
122 if test $ac_cv_sizeof_voidp = 4 ; then
123 # This must be a 32 bit user space running on 64 bit kernel so treat
124 # this as ia32.
125 cpu_ia32=true
126 AC_DEFINE(FLAC__CPU_IA32)
127 AH_TEMPLATE(FLAC__CPU_IA32, [define if building for ia32/i386])
128 else
129 # x86_64 user space and kernel.
130 cpu_x86_64=true
131 AC_DEFINE(FLAC__CPU_X86_64)
132 AH_TEMPLATE(FLAC__CPU_X86_64, [define if building for x86_64])
133 fi
134 asm_optimisation=$asm_opt
135 ;;
136 esac
137 ;;
138 i*86)
139 cpu_ia32=true
140 AC_DEFINE(FLAC__CPU_IA32)
141 AH_TEMPLATE(FLAC__CPU_IA32, [define if building for ia32/i386])
142 asm_optimisation=$asm_opt
143 ;;
144 powerpc64|powerpc64le)
145 cpu_ppc64=true
146 cpu_ppc=true
147 AC_DEFINE(FLAC__CPU_PPC)
148 AH_TEMPLATE(FLAC__CPU_PPC, [define if building for PowerPC])
149 AC_DEFINE(FLAC__CPU_PPC64)
150 AH_TEMPLATE(FLAC__CPU_PPC64, [define if building for PowerPC64])
151 asm_optimisation=$asm_opt
152 ;;
153 powerpc|powerpcle)
154 cpu_ppc=true
155 AC_DEFINE(FLAC__CPU_PPC)
156 AH_TEMPLATE(FLAC__CPU_PPC, [define if building for PowerPC])
157 asm_optimisation=$asm_opt
158 ;;
159 sparc)
160 cpu_sparc=true
161 AC_DEFINE(FLAC__CPU_SPARC)
162 AH_TEMPLATE(FLAC__CPU_SPARC, [define if building for SPARC])
163 asm_optimisation=$asm_opt
164 ;;
165 esac
166 AM_CONDITIONAL(FLAC__CPU_X86_64, test "x$cpu_x86_64" = xtrue)
167 AM_CONDITIONAL(FLaC__CPU_IA32, test "x$cpu_ia32" = xtrue)
168 AM_CONDITIONAL(FLaC__CPU_PPC, test "x$cpu_ppc" = xtrue)
169 AM_CONDITIONAL(FLaC__CPU_PPC64, test "x$cpu_ppc64" = xtrue)
170 AM_CONDITIONAL(FLaC__CPU_SPARC, test "x$cpu_sparc" = xtrue)
172 if test "x$ac_cv_header_x86intrin_h" = xyes; then
173 AC_DEFINE([FLAC__HAS_X86INTRIN], 1, [Set to 1 if <x86intrin.h> is available.])
174 else
175 AC_DEFINE([FLAC__HAS_X86INTRIN], 0)
176 fi
178 if test x"$cpu_ppc64" = xtrue ; then
180 AC_C_ATTRIBUTE([target("cpu=power8")],
181 [have_cpu_power8=yes],
182 [have_cpu_power8=no])
183 if test x"$have_cpu_power8" = xyes ; then
184 AC_DEFINE(FLAC__HAS_TARGET_POWER8)
185 AH_TEMPLATE(FLAC__HAS_TARGET_POWER8, [define if compiler has __attribute__((target("cpu=power8"))) support])
186 fi
188 AC_C_ATTRIBUTE([target("cpu=power9")],
189 [have_cpu_power9=yes],
190 [have_cpu_power9=no])
191 if test x"$have_cpu_power9" = xyes ; then
192 AC_DEFINE(FLAC__HAS_TARGET_POWER9)
193 AH_TEMPLATE(FLAC__HAS_TARGET_POWER9, [define if compiler has __attribute__((target("cpu=power9"))) support])
194 fi
196 fi
198 case "$host" in
199 i386-*-openbsd3.[[0-3]]) OBJ_FORMAT=aoutb ;;
200 *-*-cygwin|*mingw*) OBJ_FORMAT=win32 ;;
201 *-*-darwin*) OBJ_FORMAT=macho ;;
202 *emx*) OBJ_FORMAT=aout ;;
203 *djgpp) OBJ_FORMAT=coff ;;
204 *) OBJ_FORMAT=elf ;;
205 esac
206 AC_SUBST(OBJ_FORMAT)
208 os_is_windows=no
209 case "$host" in
210 *mingw*)
211 CPPFLAGS="-D__MSVCRT_VERSION__=0x0601 $CPPFLAGS"
212 os_is_windows=yes
213 ;;
214 esac
216 AM_CONDITIONAL(OS_IS_WINDOWS, test "x$os_is_windows" = xyes)
218 case "$host" in
219 *-linux-*)
220 sys_linux=true
221 AC_DEFINE(FLAC__SYS_LINUX)
222 AH_TEMPLATE(FLAC__SYS_LINUX, [define if building for Linux])
223 ;;
224 *-*-darwin*)
225 sys_darwin=true
226 AC_DEFINE(FLAC__SYS_DARWIN)
227 AH_TEMPLATE(FLAC__SYS_DARWIN, [define if building for Darwin / MacOS X])
228 ;;
229 esac
230 AM_CONDITIONAL(FLaC__SYS_DARWIN, test "x$sys_darwin" = xtrue)
231 AM_CONDITIONAL(FLaC__SYS_LINUX, test "x$sys_linux" = xtrue)
233 if test "x$cpu_ia32" = xtrue || test "x$cpu_x86_64" = xtrue ; then
234 AC_DEFINE(FLAC__ALIGN_MALLOC_DATA)
235 AH_TEMPLATE(FLAC__ALIGN_MALLOC_DATA, [define to align allocated memory on 32-byte boundaries])
236 fi
238 AM_CONDITIONAL([DEBUG], [test "x${ax_enable_debug}" = "xyes" || test "x${ax_enable_debug}" = "xinfo"])
240 AC_ARG_ENABLE(sse,
241 AC_HELP_STRING([--disable-sse], [Disable passing of -msse2 to the compiler]),
242 [case "${enableval}" in
243 yes) sse_os=yes ;;
244 no) sse_os=no ;;
245 *) AC_MSG_ERROR(bad value ${enableval} for --enable-sse) ;;
246 esac],[sse_os=yes])
248 AC_ARG_ENABLE(altivec,
249 AC_HELP_STRING([--disable-altivec], [Disable Altivec optimizations]),
250 [case "${enableval}" in
251 yes) use_altivec=true ;;
252 no) use_altivec=false ;;
253 *) AC_MSG_ERROR(bad value ${enableval} for --enable-altivec) ;;
254 esac],[use_altivec=true])
255 AM_CONDITIONAL(FLaC__USE_ALTIVEC, test "x$use_altivec" = xtrue)
256 if test "x$use_altivec" = xtrue ; then
257 AC_DEFINE(FLAC__USE_ALTIVEC)
258 AH_TEMPLATE(FLAC__USE_ALTIVEC, [define to enable use of Altivec instructions])
259 fi
261 AC_ARG_ENABLE(vsx,
262 AC_HELP_STRING([--disable-vsx], [Disable VSX optimizations]),
263 [case "${enableval}" in
264 yes) use_vsx=true ;;
265 no) use_vsx=false ;;
266 *) AC_MSG_ERROR(bad value ${enableval} for --enable-vsx) ;;
267 esac],[use_vsx=true])
268 AM_CONDITIONAL(FLaC__USE_VSX, test "x$use_vsx" = xtrue)
269 if test "x$use_vsx" = xtrue ; then
270 AC_DEFINE(FLAC__USE_VSX)
271 AH_TEMPLATE(FLAC__USE_VSX, [define to enable use of VSX instructions])
272 fi
274 AC_ARG_ENABLE(avx,
275 AC_HELP_STRING([--disable-avx], [Disable AVX, AVX2 optimizations]),
276 [case "${enableval}" in
277 yes) use_avx=true ;;
278 no) use_avx=false ;;
279 *) AC_MSG_ERROR(bad value ${enableval} for --enable-avx) ;;
280 esac],[use_avx=true])
281 AM_CONDITIONAL(FLaC__USE_AVX, test "x$use_avx" = xtrue)
282 if test "x$use_avx" = xtrue ; then
283 AC_DEFINE(FLAC__USE_AVX)
284 AH_TEMPLATE(FLAC__USE_AVX, [define to enable use of AVX instructions])
285 fi
287 AC_ARG_ENABLE(thorough-tests,
288 AC_HELP_STRING([--disable-thorough-tests], [Disable thorough (long) testing, do only basic tests]),
289 [case "${enableval}" in
290 yes) thorough_tests=true ;;
291 no) thorough_tests=false ;;
292 *) AC_MSG_ERROR(bad value ${enableval} for --enable-thorough-tests) ;;
293 esac],[thorough_tests=true])
294 AC_ARG_ENABLE(exhaustive-tests,
295 AC_HELP_STRING([--enable-exhaustive-tests], [Enable exhaustive testing (VERY long)]),
296 [case "${enableval}" in
297 yes) exhaustive_tests=true ;;
298 no) exhaustive_tests=false ;;
299 *) AC_MSG_ERROR(bad value ${enableval} for --enable-exhaustive-tests) ;;
300 esac],[exhaustive_tests=false])
301 if test "x$thorough_tests" = xfalse ; then
302 FLAC__TEST_LEVEL=0
303 elif test "x$exhaustive_tests" = xfalse ; then
304 FLAC__TEST_LEVEL=1
305 else
306 FLAC__TEST_LEVEL=2
307 fi
308 AC_SUBST(FLAC__TEST_LEVEL)
310 AC_ARG_ENABLE(werror,
311 AC_HELP_STRING([--enable-werror], [Enable -Werror in all Makefiles]))
313 AC_ARG_ENABLE([stack-smash-protection],
314 [AS_HELP_STRING([--disable-stack-smash-protection],[Disable GNU GCC stack smash protection])],,
315 [AS_IF([test "$ac_cv_c_compiler_gnu" = "yes" && test "$os_is_windows" = "no"],
316 [enable_stack_smash_protection=yes],[enable_stack_smash_protection=no])])
318 AC_ARG_ENABLE(64-bit-words,
319 AC_HELP_STRING([--enable-64-bit-words], [Set FLAC__BYTES_PER_WORD to 8 (4 is the default)]))
320 if test "x$enable_64_bit_words" = xyes ; then
321 AC_DEFINE_UNQUOTED([ENABLE_64_BIT_WORDS],1,[Set FLAC__BYTES_PER_WORD to 8 (4 is the default)])
322 else
323 AC_DEFINE_UNQUOTED([ENABLE_64_BIT_WORDS],0)
324 fi
325 AC_SUBST(ENABLE_64_BIT_WORDS)
327 AC_ARG_ENABLE(valgrind-testing,
328 AC_HELP_STRING([--enable-valgrind-testing], [Run all tests inside Valgrind]),
329 [case "${enableval}" in
330 yes) FLAC__TEST_WITH_VALGRIND=yes ;;
331 no) FLAC__TEST_WITH_VALGRIND=no ;;
332 *) AC_MSG_ERROR(bad value ${enableval} for --enable-valgrind-testing) ;;
333 esac],[FLAC__TEST_WITH_VALGRIND=no])
334 AC_SUBST(FLAC__TEST_WITH_VALGRIND)
336 AC_ARG_ENABLE(doxygen-docs,
337 AC_HELP_STRING([--disable-doxygen-docs], [Disable API documentation building via Doxygen]),
338 [case "${enableval}" in
339 yes) enable_doxygen_docs=true ;;
340 no) enable_doxygen_docs=false ;;
341 *) AC_MSG_ERROR(bad value ${enableval} for --enable-doxygen-docs) ;;
342 esac],[enable_doxygen_docs=true])
343 if test "x$enable_doxygen_docs" != xfalse ; then
344 AC_CHECK_PROGS(DOXYGEN, doxygen)
345 fi
346 AM_CONDITIONAL(FLaC__HAS_DOXYGEN, test -n "$DOXYGEN")
348 AC_ARG_ENABLE(local-xmms-plugin,
349 AC_HELP_STRING([--enable-local-xmms-plugin], [Install XMMS plugin to ~/.xmms/Plugins instead of system location]),
350 [case "${enableval}" in
351 yes) install_xmms_plugin_locally=true ;;
352 no) install_xmms_plugin_locally=false ;;
353 *) AC_MSG_ERROR(bad value ${enableval} for --enable-local-xmms-plugin) ;;
354 esac],[install_xmms_plugin_locally=false])
355 AM_CONDITIONAL(FLaC__INSTALL_XMMS_PLUGIN_LOCALLY, test "x$install_xmms_plugin_locally" = xtrue)
357 AC_ARG_ENABLE(xmms-plugin,
358 AC_HELP_STRING([--disable-xmms-plugin], [Do not build XMMS plugin]),
359 [case "${enableval}" in
360 yes) enable_xmms_plugin=true ;;
361 no) enable_xmms_plugin=false ;;
362 *) AC_MSG_ERROR(bad value ${enableval} for --enable-xmms-plugin) ;;
363 esac],[enable_xmms_plugin=true])
364 if test "x$enable_xmms_plugin" != xfalse ; then
365 AM_PATH_XMMS(0.9.5.1, , AC_MSG_WARN([*** XMMS >= 0.9.5.1 not installed - XMMS support will not be built]))
366 fi
367 AM_CONDITIONAL(FLaC__HAS_XMMS, test -n "$XMMS_INPUT_PLUGIN_DIR")
369 dnl build FLAC++ or not
370 AC_ARG_ENABLE([cpplibs],
371 AC_HELP_STRING([--disable-cpplibs], [Do not build libFLAC++]),
372 [case "${enableval}" in
373 yes) disable_cpplibs=false ;;
374 no) disable_cpplibs=true ;;
375 *) AC_MSG_ERROR(bad value ${enableval} for --enable-cpplibs) ;;
376 esac], [disable_cpplibs=false])
377 AM_CONDITIONAL(FLaC__WITH_CPPLIBS, [test "x$disable_cpplibs" != xtrue])
379 AC_ARG_ENABLE([oss-fuzzers],
380 [AS_HELP_STRING([--enable-oss-fuzzers],
381 [Whether to generate the fuzzers for OSS-Fuzz (Clang only)])],
382 [have_oss_fuzzers=yes], [have_oss_fuzzers=no])
384 if test "x$have_oss_fuzzers" = "xyes"; then
385 if test "x$xiph_cv_c_compiler_clang" = "xyes" ; then
386 AM_CONDITIONAL([USE_OSSFUZZERS], [test "x$have_oss_fuzzers" = "xyes"])
387 if test "x$LIB_FUZZING_ENGINE" = "x" ; then
388 # Only set this if it is empty.
389 LIB_FUZZING_ENGINE=-fsanitize=fuzzer
390 fi
391 else
392 AM_CONDITIONAL([USE_OSSFUZZERS], [test "false" = "true"])
393 # Disable fuzzer if the compiler is not Clang.
394 AC_MSG_WARN([*** Ozz-Fuzz is disabled because that requres the Clang compiler.])
395 have_oss_fuzzers="no (compiler is GCC)"
396 fi
397 else
398 AM_CONDITIONAL([USE_OSSFUZZERS], [test "false" = "true"])
399 fi
401 AM_CONDITIONAL([USE_OSSFUZZ_FLAG], [test "x$LIB_FUZZING_ENGINE" = "x-fsanitize=fuzzer"])
402 AM_CONDITIONAL([USE_OSSFUZZ_STATIC], [test -f "$LIB_FUZZING_ENGINE"])
403 AC_SUBST([LIB_FUZZING_ENGINE])
405 dnl check for ogg library
406 AC_ARG_ENABLE([ogg],
407 AC_HELP_STRING([--disable-ogg], [Disable ogg support (default: test for libogg)]),
408 [ want_ogg=$enableval ], [ want_ogg=yes ] )
410 if test "x$want_ogg" != "xno"; then
411 XIPH_PATH_OGG(have_ogg=yes, AC_MSG_WARN([*** Ogg development environment not installed - Ogg support will not be built]))
412 fi
414 FLAC__HAS_OGG=0
415 AM_CONDITIONAL(FLaC__HAS_OGG, [test "x$have_ogg" = xyes])
416 if test "x$have_ogg" = xyes ; then
417 FLAC__HAS_OGG=1
418 OGG_PACKAGE="ogg"
419 else
420 have_ogg=no
421 fi
422 AC_DEFINE_UNQUOTED([FLAC__HAS_OGG],$FLAC__HAS_OGG,[define if you have the ogg library])
423 AC_SUBST(FLAC__HAS_OGG)
424 AC_SUBST(OGG_PACKAGE)
426 dnl Build examples?
427 AC_ARG_ENABLE([examples],
428 AS_HELP_STRING([--disable-examples], [Don't build and install examples]))
429 AM_CONDITIONAL([EXAMPLES], [test "x$enable_examples" != "xno"])
431 dnl check for i18n(internationalization); these are from libiconv/gettext
432 AM_ICONV
433 AM_LANGINFO_CODESET
435 AC_CHECK_PROGS(DOCBOOK_TO_MAN, docbook-to-man docbook2man)
436 AM_CONDITIONAL(FLaC__HAS_DOCBOOK_TO_MAN, test -n "$DOCBOOK_TO_MAN")
437 if test -n "$DOCBOOK_TO_MAN" ; then
438 AC_DEFINE(FLAC__HAS_DOCBOOK_TO_MAN)
439 AH_TEMPLATE(FLAC__HAS_DOCBOOK_TO_MAN, [define if you have docbook-to-man or docbook2man])
440 fi
442 AC_CHECK_LIB(rt, clock_gettime,
443 LIB_CLOCK_GETTIME=-lrt
444 AC_DEFINE(HAVE_CLOCK_GETTIME)
445 AH_TEMPLATE(HAVE_CLOCK_GETTIME, [define if you have clock_gettime]))
446 AC_SUBST(LIB_CLOCK_GETTIME)
448 # only matters for x86
449 AC_CHECK_PROGS(NASM, nasm)
450 AM_CONDITIONAL(FLaC__HAS_NASM, test -n "$NASM")
451 if test -n "$NASM" ; then
452 AC_DEFINE(FLAC__HAS_NASM)
453 AH_TEMPLATE(FLAC__HAS_NASM, [define if you are compiling for x86 and have the NASM assembler])
454 fi
456 dnl If debugging is disabled AND no CFLAGS/CXXFLAGS/CPPFLAGS/LDFLAGS
457 dnl are provided, we can set defaults to our liking
458 AS_IF([test "x${ax_enable_debug}" = "xno" && test "x${enable_flags_setting}" = "xyes"], [
459 CFLAGS="-O3 -funroll-loops"
460 CXXFLAGS="-O3"
461 ])
463 XIPH_GCC_VERSION dnl Sets a non-zero GCC_XXX_VERSION for gcc, not clang. checks below rely on that..
465 if test x$ac_cv_c_compiler_gnu = xyes -o x$xiph_cv_c_compiler_clang = xyes ; then
466 CFLAGS="$CFLAGS -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wnested-externs -Wshadow -Wundef -Wmissing-declarations -Winline " # -Wcast-qual -Wbad-function-cast -Wwrite-strings -Wconversion
467 CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wcast-align -Wshadow -Wwrite-strings -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder -Wsign-promo -Wundef " # -Wcast-qual -Wbad-function-cast -Wwrite-strings -Woverloaded-virtual -Wmissing-declarations
469 XIPH_ADD_CFLAGS([-Wdeclaration-after-statement])
471 dnl some distributions (such as Gentoo) have _FORTIFY_SOURCE always
472 dnl enabled. We test for this situation in order to prevent polluting
473 dnl the console with messages of macro redefinitions.
474 AX_ADD_FORTIFY_SOURCE
476 AC_LANG_PUSH([C++])
477 XIPH_ADD_CXXFLAGS([-Weffc++])
478 AC_LANG_POP([C++])
480 if test x$xiph_cv_c_compiler_clang = xyes -a "$OBJ_FORMAT" = elf; then
481 CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
482 CFLAGS="$CFLAGS -fvisibility=hidden"
483 CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
484 elif test "$GCC_MAJOR_VERSION" -ge 4 && test "$OBJ_FORMAT" = elf; then
485 CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
486 CFLAGS="$CFLAGS -fvisibility=hidden"
487 CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
488 fi
491 if test x$xiph_cv_c_compiler_clang = xyes -a "$OBJ_FORMAT" = macho; then
492 CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
493 CFLAGS="$CFLAGS -fvisibility=hidden"
494 CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
495 elif test "$GCC_MAJOR_VERSION" -ge 4 && test "$OBJ_FORMAT" = macho; then
496 CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
497 CFLAGS="$CFLAGS -fvisibility=hidden"
498 CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
499 fi
501 if test "x$GCC_MAJOR_VERSION$GCC_MINOR_VERSION" = "x42" ; then
502 XIPH_ADD_CFLAGS([-fgnu89-inline])
503 fi
505 if test "x$GCC_MAJOR_VERSION$GCC_MINOR_VERSION" = "x47" ; then
506 XIPH_ADD_CFLAGS([-fno-inline-small-functions])
507 fi
509 if test "x$asm_optimisation$sse_os" = "xyesyes" ; then
510 XIPH_ADD_CFLAGS([-msse2])
511 fi
513 fi
515 case "$host_os" in
516 "mingw32"|"os2")
517 if test "$host_cpu" = "i686"; then
518 XIPH_ADD_CFLAGS([-mstackrealign])
519 fi
520 esac
522 if test x$enable_werror = "xyes" ; then
523 XIPH_ADD_CFLAGS([-Werror])
524 AC_LANG_PUSH([C++])
525 XIPH_ADD_CXXFLAGS([-Werror])
526 AC_LANG_POP([C++])
527 fi
529 if test x$enable_stack_smash_protection = "xyes" ; then
530 XIPH_GCC_STACK_PROTECTOR
531 XIPH_GXX_STACK_PROTECTOR
532 fi
534 AH_VERBATIM([FLAC_API_EXPORTS],
535 [/* libtool defines DLL_EXPORT for windows dll builds,
536 but flac code relies on FLAC_API_EXPORTS instead. */
537 #ifdef DLL_EXPORT
538 #ifdef __cplusplus
539 # define FLACPP_API_EXPORTS
540 #else
541 # define FLAC_API_EXPORTS
542 #endif
543 #endif])
545 if test x$enable_shared != "xyes" ; then
546 dnl for correct FLAC_API
547 CPPFLAGS="-DFLAC__NO_DLL $CPPFLAGS"
548 fi
550 AC_CONFIG_FILES([ \
551 Makefile \
552 src/Makefile \
553 src/libFLAC/Makefile \
554 src/libFLAC/flac.pc \
555 src/libFLAC/ia32/Makefile \
556 src/libFLAC/include/Makefile \
557 src/libFLAC/include/private/Makefile \
558 src/libFLAC/include/protected/Makefile \
559 src/libFLAC++/Makefile \
560 src/libFLAC++/flac++.pc \
561 src/flac/Makefile \
562 src/metaflac/Makefile \
563 src/plugin_common/Makefile \
564 src/plugin_xmms/Makefile \
565 src/share/Makefile \
566 src/test_grabbag/Makefile \
567 src/test_grabbag/cuesheet/Makefile \
568 src/test_grabbag/picture/Makefile \
569 src/test_libs_common/Makefile \
570 src/test_libFLAC/Makefile \
571 src/test_libFLAC++/Makefile \
572 src/test_seeking/Makefile \
573 src/test_streams/Makefile \
574 src/utils/Makefile \
575 src/utils/flacdiff/Makefile \
576 src/utils/flactimer/Makefile \
577 examples/Makefile \
578 examples/c/Makefile \
579 examples/c/decode/Makefile \
580 examples/c/decode/file/Makefile \
581 examples/c/encode/Makefile \
582 examples/c/encode/file/Makefile \
583 examples/cpp/Makefile \
584 examples/cpp/decode/Makefile \
585 examples/cpp/decode/file/Makefile \
586 examples/cpp/encode/Makefile \
587 examples/cpp/encode/file/Makefile \
588 include/Makefile \
589 include/FLAC/Makefile \
590 include/FLAC++/Makefile \
591 include/share/Makefile \
592 include/share/grabbag/Makefile \
593 include/test_libs_common/Makefile \
594 doc/Doxyfile \
595 doc/Makefile \
596 doc/html/Makefile \
597 doc/html/images/Makefile \
598 m4/Makefile \
599 man/Makefile \
600 test/common.sh \
601 test/Makefile \
602 test/cuesheets/Makefile \
603 test/flac-to-flac-metadata-test-files/Makefile \
604 test/metaflac-test-files/Makefile \
605 test/pictures/Makefile \
606 build/Makefile \
607 microbench/Makefile \
608 oss-fuzz/Makefile
609 ])
610 AC_OUTPUT
612 AC_MSG_RESULT([
613 -=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-
615 Configuration summary :
617 FLAC version : ............................ ${VERSION}
619 Host CPU : ................................ ${host_cpu}
620 Host Vendor : ............................. ${host_vendor}
621 Host OS : ................................. ${host_os}
622 ])
624 echo " Compiler is GCC : ......................... ${ac_cv_c_compiler_gnu}"
625 if test x$ac_cv_c_compiler_gnu = xyes ; then
626 echo " GCC version : ............................. ${GCC_VERSION}"
627 fi
628 echo " Compiler is Clang : ....................... ${xiph_cv_c_compiler_clang}"
629 echo " SSE optimizations : ....................... ${sse_os}"
630 echo " Asm optimizations : ....................... ${asm_optimisation}"
631 echo " Ogg/FLAC support : ........................ ${have_ogg}"
632 echo " Stack protector : ........................ ${enable_stack_smash_protection}"
633 echo " Fuzzing support (Clang only) : ............ ${have_oss_fuzzers}"
634 echo