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-rw-r--r--configure.ac602
1 files changed, 602 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..418677c
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,602 @@
+# FLAC - Free Lossless Audio Codec
+# Copyright (C) 2001-2009 Josh Coalson
+# Copyright (C) 2011-2023 Xiph.Org Foundation
+#
+# This file is part the FLAC project. FLAC is comprised of several
+# components distributed under different licenses. The codec libraries
+# are distributed under Xiph.Org's BSD-like license (see the file
+# COPYING.Xiph in this distribution). All other programs, libraries, and
+# plugins are distributed under the GPL (see COPYING.GPL). The documentation
+# is distributed under the Gnu FDL (see COPYING.FDL). Each file in the
+# FLAC distribution contains at the top the terms under which it may be
+# distributed.
+#
+# Since this particular file is relevant to all components of FLAC,
+# it may be distributed under the Xiph.Org license, which is the least
+# restrictive of those mentioned above. See the file COPYING.Xiph in this
+# distribution.
+
+# NOTE that for many of the AM_CONDITIONALs we use the prefix FLaC__
+# instead of FLAC__ since autoconf triggers off 'AC_' in strings
+
+AC_PREREQ(2.60)
+AC_INIT([flac],[1.4.3],[flac-dev@xiph.org],[flac],[https://www.xiph.org/flac/])
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_SRCDIR([src/flac/main.c])
+AC_CONFIG_MACRO_DIR([m4])
+AM_INIT_AUTOMAKE([foreign 1.10 -Wall tar-pax no-dist-gzip dist-xz subdir-objects])
+m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
+
+AX_CHECK_ENABLE_DEBUG
+user_cflags=$CFLAGS
+
+#Prefer whatever the current ISO standard is.
+AC_PROG_CC
+AC_USE_SYSTEM_EXTENSIONS
+m4_ifdef([AM_PROG_AR], [AM_PROG_AR])
+LT_INIT([win32-dll disable-static pic-only])
+AM_PROG_AS
+AC_PROG_CXX
+XIPH_C_COMPILER_IS_CLANG
+XIPH_GCC_REALLY_IS_GCC
+AC_PROG_MAKE_SET
+AC_PROG_MKDIR_P
+
+AC_SYS_LARGEFILE
+AC_FUNC_FSEEKO
+
+AC_CHECK_SIZEOF(off_t,1) # Fake default value.
+AC_CHECK_SIZEOF([void*])
+AC_SEARCH_LIBS([lround],[m], [AC_DEFINE(HAVE_LROUND,1,lround support)])
+
+AM_PROG_CC_C_O
+AC_C_INLINE
+AC_C_TYPEOF
+
+AC_CHECK_HEADERS([stdint.h stdbool.h inttypes.h byteswap.h sys/auxv.h sys/param.h sys/ioctl.h termios.h x86intrin.h cpuid.h arm_neon.h])
+
+if test "x$ac_cv_header_stdint_h" != xyes -o "x$ac_cv_header_stdbool_h" != xyes; then
+AC_MSG_ERROR("Header stdint.h and/or stdbool.h not found")
+fi
+
+
+XIPH_C_BSWAP32
+XIPH_C_BSWAP16
+
+ac_cv_c_big_endian=0
+ac_cv_c_little_endian=0
+AC_C_BIGENDIAN([ac_cv_c_big_endian=1], [ac_cv_c_little_endian=1], [
+ AC_MSG_WARN([[*****************************************************************]])
+ AC_MSG_WARN([[*** Not able to determine endian-ness of target processor. ]])
+ AC_MSG_WARN([[*** The constants CPU_IS_BIG_ENDIAN and CPU_IS_LITTLE_ENDIAN in ]])
+ AC_MSG_WARN([[*** config.h may need to be hand editied. ]])
+ AC_MSG_WARN([[*****************************************************************]])
+])
+AC_DEFINE_UNQUOTED(CPU_IS_BIG_ENDIAN, ${ac_cv_c_big_endian},
+ [Target processor is big endian.])
+AC_DEFINE_UNQUOTED(CPU_IS_LITTLE_ENDIAN, ${ac_cv_c_little_endian},
+ [Target processor is little endian.])
+AC_DEFINE_UNQUOTED(WORDS_BIGENDIAN, ${ac_cv_c_big_endian},
+ [Target processor is big endian.])
+
+AC_ARG_ENABLE(asm-optimizations, AS_HELP_STRING([--disable-asm-optimizations],[Do not use any CPU specific optimization routines]), asm_opt=no, asm_opt=yes)
+AM_CONDITIONAL(FLaC__NO_ASM, test "x$asm_opt" = xno)
+if test "x$asm_opt" = xno ; then
+AC_DEFINE(FLAC__NO_ASM)
+AH_TEMPLATE(FLAC__NO_ASM, [define to disable use of assembly code])
+fi
+
+dnl check for getauxval in standard library
+AC_CHECK_FUNCS(getauxval)
+
+dnl check for getopt in standard library
+dnl AC_CHECK_FUNCS(getopt_long , , [LIBOBJS="$LIBOBJS getopt.o getopt1.o"] )
+AC_CHECK_FUNCS(getopt_long, [], [])
+
+AC_CHECK_SIZEOF(void*,1)
+
+asm_optimisation=no
+case "$host_cpu" in
+ amd64|x86_64)
+ case "$host" in
+ *gnux32)
+ # x32 user space and 64 bit kernel.
+ cpu_x86_64=true
+ AC_DEFINE(FLAC__CPU_X86_64)
+ AH_TEMPLATE(FLAC__CPU_X86_64, [define if building for x86_64])
+ ;;
+ *)
+ if test $ac_cv_sizeof_voidp = 4 ; then
+ # This must be a 32 bit user space running on 64 bit kernel so treat
+ # this as ia32.
+ cpu_ia32=true
+ AC_DEFINE(FLAC__CPU_IA32)
+ AH_TEMPLATE(FLAC__CPU_IA32, [define if building for ia32/i386])
+ else
+ # x86_64 user space and kernel.
+ cpu_x86_64=true
+ AC_DEFINE(FLAC__CPU_X86_64)
+ AH_TEMPLATE(FLAC__CPU_X86_64, [define if building for x86_64])
+ fi
+ ;;
+ esac
+ ;;
+ i*86)
+ cpu_ia32=true
+ AC_DEFINE(FLAC__CPU_IA32)
+ AH_TEMPLATE(FLAC__CPU_IA32, [define if building for ia32/i386])
+ ;;
+ arm64|aarch64)
+ cpu_arm64=true
+ AC_DEFINE(FLAC__CPU_ARM64)
+ AH_TEMPLATE(FLAC__CPU_ARM64, [define if building for ARM])
+ ;;
+esac
+AM_CONDITIONAL(FLAC__CPU_X86_64, test "x$cpu_x86_64" = xtrue)
+AM_CONDITIONAL(FLaC__CPU_IA32, test "x$cpu_ia32" = xtrue)
+AM_CONDITIONAL(FLAC__CPU_ARM64, test "x$cpu_arm64" = xtrue)
+
+if test "x$ac_cv_header_x86intrin_h" = xyes -a "x$asm_opt" = xyes; then
+ AC_DEFINE([FLAC__HAS_X86INTRIN], 1, [Set to 1 if <x86intrin.h> is available.])
+ asm_optimisation=yes
+else
+ AC_DEFINE([FLAC__HAS_X86INTRIN], 0)
+fi
+
+if test "x$ac_cv_header_arm_neon_h" = xyes -a "x$asm_opt" = xyes; then
+ AC_DEFINE([FLAC__HAS_NEONINTRIN], 1, [Set to 1 if <arm_neon.h> is available.])
+ AC_MSG_CHECKING([whether arm_neon.h has A64 functions])
+ AC_COMPILE_IFELSE(
+ [AC_LANG_PROGRAM([[#include <arm_neon.h>]],
+ [[float64x2_t sum5; sum5 = vdupq_n_f64(0.0f);]])],
+ [AC_MSG_RESULT([yes])
+ has_a64neon=yes],
+ [AC_MSG_RESULT([no])])
+ if test "x$has_a64neon" = xyes; then
+ AC_DEFINE([FLAC__HAS_A64NEONINTRIN], 1, [Set to 1 if <arm_neon.h> has A64 instructions.])
+ asm_optimisation=yes
+ else
+ AC_DEFINE([FLAC__HAS_A64NEONINTRIN], 0)
+ fi
+else
+ AC_DEFINE([FLAC__HAS_NEONINTRIN], 0)
+fi
+
+case "$host" in
+ i386-*-openbsd3.[[0-3]]) OBJ_FORMAT=aoutb ;;
+ *-*-cygwin|*mingw*) OBJ_FORMAT=win32 ;;
+ *-*-darwin*) OBJ_FORMAT=macho ;;
+ *emx*) OBJ_FORMAT=aout ;;
+ *djgpp) OBJ_FORMAT=coff ;;
+ *) OBJ_FORMAT=elf ;;
+esac
+AC_SUBST(OBJ_FORMAT)
+
+os_is_windows=no
+case "$host" in
+ *mingw*)
+ os_is_windows=yes
+ AC_CHECK_TOOL(RC,[windres],[:])
+ ;;
+esac
+
+AM_CONDITIONAL(OS_IS_WINDOWS, test "x$os_is_windows" = xyes)
+AM_CONDITIONAL(HAVE_WINDRES, test "x$RC" != "x:")
+
+case "$host" in
+ *-linux-*)
+ sys_linux=true
+ AC_DEFINE(FLAC__SYS_LINUX)
+ AH_TEMPLATE(FLAC__SYS_LINUX, [define if building for Linux])
+ ;;
+ *-*-darwin*)
+ sys_darwin=true
+ AC_DEFINE(FLAC__SYS_DARWIN)
+ AH_TEMPLATE(FLAC__SYS_DARWIN, [define if building for Darwin / MacOS X])
+ ;;
+esac
+AM_CONDITIONAL(FLaC__SYS_DARWIN, test "x$sys_darwin" = xtrue)
+AM_CONDITIONAL(FLaC__SYS_LINUX, test "x$sys_linux" = xtrue)
+
+if test "x$cpu_ia32" = xtrue || test "x$cpu_x86_64" = xtrue ; then
+AC_DEFINE(FLAC__ALIGN_MALLOC_DATA)
+AH_TEMPLATE(FLAC__ALIGN_MALLOC_DATA, [define to align allocated memory on 32-byte boundaries])
+fi
+
+AM_CONDITIONAL([DEBUG], [test "x${ax_enable_debug}" = "xyes" || test "x${ax_enable_debug}" = "xinfo"])
+
+AC_ARG_ENABLE(avx,
+AS_HELP_STRING([--disable-avx],[Disable AVX, AVX2 optimizations. There is runtime detection of CPU features, so disabling is only necessary when a compiler does not know about them]),
+[case "${enableval}" in
+ yes) use_avx=true ;;
+ no) use_avx=false ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-avx) ;;
+esac],[use_avx=true])
+AM_CONDITIONAL(FLaC__USE_AVX, test "x$use_avx" = xtrue)
+if test "x$use_avx" = xtrue ; then
+AC_DEFINE(FLAC__USE_AVX)
+AH_TEMPLATE(FLAC__USE_AVX, [define to enable use of AVX instructions])
+fi
+
+AC_ARG_ENABLE(thorough-tests,
+AS_HELP_STRING([--disable-thorough-tests],[Disable thorough (long) testing, do only basic tests]),
+[case "${enableval}" in
+ yes) thorough_tests=true ;;
+ no) thorough_tests=false ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-thorough-tests) ;;
+esac],[thorough_tests=true])
+AC_ARG_ENABLE(exhaustive-tests,
+AS_HELP_STRING([--enable-exhaustive-tests],[Enable exhaustive testing (VERY long)]),
+[case "${enableval}" in
+ yes) exhaustive_tests=true ;;
+ no) exhaustive_tests=false ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-exhaustive-tests) ;;
+esac],[exhaustive_tests=false])
+if test "x$thorough_tests" = xfalse ; then
+FLAC__TEST_LEVEL=0
+elif test "x$exhaustive_tests" = xfalse ; then
+FLAC__TEST_LEVEL=1
+else
+FLAC__TEST_LEVEL=2
+fi
+AC_SUBST(FLAC__TEST_LEVEL)
+
+AC_ARG_ENABLE(werror,
+ AS_HELP_STRING([--enable-werror],[Enable -Werror in all Makefiles]))
+
+AC_ARG_ENABLE([stack-smash-protection],
+ [AS_HELP_STRING([--disable-stack-smash-protection],[Disable GNU GCC stack smash protection])],,
+ [AS_IF([test "$ac_cv_c_compiler_gnu" = "yes"],
+ [enable_stack_smash_protection=yes],[enable_stack_smash_protection=no])])
+
+AC_ARG_ENABLE([fortify-source],
+ [AS_HELP_STRING([--disable-fortify-source],[Disable _FORTIFY_SOURCE buffer overflow protection])],,
+ [AS_IF([test "$ac_cv_c_compiler_gnu" = "yes"],
+ [enable_fortify_source=yes],[enable_fortify_source=no])])
+
+case "$host" in
+ *mingw*)
+ if test "$enable_fortify_source" = "yes"; then
+ AC_SEARCH_LIBS(__memset_chk, ssp, , mingw_has_memset_chk=no)
+ fi
+ if test "$enable_stack_smash_protection" = "yes"; then
+ AC_SEARCH_LIBS(__stack_chk_fail, ssp, , mingw_has_stack_chk_fail=no)
+ fi
+ ;;
+esac
+
+
+AC_ARG_ENABLE(64-bit-words,
+ AS_HELP_STRING([--disable-64-bit-words],[Set FLAC__BYTES_PER_WORD to 4 (8 is the default)]))
+if test "x$enable_64_bit_words" = xno ; then
+ AC_DEFINE_UNQUOTED([ENABLE_64_BIT_WORDS],0,[Set FLAC__BYTES_PER_WORD to 8 (this is the default)])
+else
+ AC_DEFINE_UNQUOTED([ENABLE_64_BIT_WORDS],1)
+fi
+AC_SUBST(ENABLE_64_BIT_WORDS)
+
+AC_ARG_ENABLE(valgrind-testing,
+AS_HELP_STRING([--enable-valgrind-testing],[Run all tests inside Valgrind]),
+[case "${enableval}" in
+ yes) FLAC__TEST_WITH_VALGRIND=yes ;;
+ no) FLAC__TEST_WITH_VALGRIND=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-valgrind-testing) ;;
+esac],[FLAC__TEST_WITH_VALGRIND=no])
+AC_SUBST(FLAC__TEST_WITH_VALGRIND)
+
+AC_ARG_ENABLE(doxygen-docs,
+AS_HELP_STRING([--disable-doxygen-docs],[Disable API documentation building via Doxygen]),
+[case "${enableval}" in
+ yes) enable_doxygen_docs=true ;;
+ no) enable_doxygen_docs=false ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-doxygen-docs) ;;
+esac],[enable_doxygen_docs=true])
+if test "x$enable_doxygen_docs" != xfalse ; then
+ AC_CHECK_PROGS(DOXYGEN, doxygen)
+fi
+AM_CONDITIONAL(FLaC__HAS_DOXYGEN, test -n "$DOXYGEN")
+
+if test ! -n "$DOXYGEN" && test -f "$srcdir/doc/FLAC.tag" && test -f "$srcdir/doc/api/modules.html" ; then
+ HAS_PREBUILT_DOXYGEN=yes
+fi
+AM_CONDITIONAL(FLaC__HAS_PREBUILT_DOXYGEN, test "x$HAS_PREBUILT_DOXYGEN" = xyes)
+
+dnl build FLAC++ or not
+AC_ARG_ENABLE([cpplibs],
+AS_HELP_STRING([--disable-cpplibs],[Do not build libFLAC++]),
+[case "${enableval}" in
+ yes) disable_cpplibs=false ;;
+ no) disable_cpplibs=true ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for --enable-cpplibs) ;;
+esac], [disable_cpplibs=false])
+AM_CONDITIONAL(FLaC__WITH_CPPLIBS, [test "x$disable_cpplibs" != xtrue])
+
+AC_ARG_ENABLE([oss-fuzzers],
+ [AS_HELP_STRING([--enable-oss-fuzzers],
+ [Whether to generate the fuzzers for OSS-Fuzz (Clang only)])],
+ [have_oss_fuzzers=yes], [have_oss_fuzzers=no])
+
+if test "x$have_oss_fuzzers" = "xyes"; then
+ if test "x$xiph_cv_c_compiler_clang" = "xyes" ; then
+ AM_CONDITIONAL([USE_OSSFUZZERS], [test "x$have_oss_fuzzers" = "xyes"])
+ if test "x$LIB_FUZZING_ENGINE" = "x" ; then
+ # Only set this if it is empty.
+ LIB_FUZZING_ENGINE=-fsanitize=fuzzer
+ fi
+ else
+ AM_CONDITIONAL([USE_OSSFUZZERS], [test "false" = "true"])
+ # Disable fuzzer if the compiler is not Clang.
+ AC_MSG_WARN([*** Ozz-Fuzz is disabled because that requires the Clang compiler.])
+ have_oss_fuzzers="no (compiler is not Clang)"
+ fi
+else
+ AM_CONDITIONAL([USE_OSSFUZZERS], [test "false" = "true"])
+fi
+
+AC_SUBST([LIB_FUZZING_ENGINE])
+
+dnl check for ogg library
+AC_ARG_ENABLE([ogg],
+ AS_HELP_STRING([--disable-ogg],[Disable ogg support (default: test for libogg)]),
+ [ want_ogg=$enableval ], [ want_ogg=yes ] )
+
+if test "x$want_ogg" != "xno"; then
+ XIPH_PATH_OGG(have_ogg=yes, AC_MSG_WARN([*** Ogg development environment not installed - Ogg support will not be built]))
+fi
+
+FLAC__HAS_OGG=0
+AM_CONDITIONAL(FLaC__HAS_OGG, [test "x$have_ogg" = xyes])
+if test "x$have_ogg" = xyes ; then
+ FLAC__HAS_OGG=1
+ OGG_PACKAGE="ogg"
+else
+ have_ogg=no
+fi
+AC_DEFINE_UNQUOTED([FLAC__HAS_OGG],$FLAC__HAS_OGG,[define if you have the ogg library])
+AC_SUBST(FLAC__HAS_OGG)
+AC_SUBST(OGG_PACKAGE)
+
+dnl Build programs?
+AC_ARG_ENABLE([programs],
+ AS_HELP_STRING([--disable-programs], [Do not build and install flac and metaflac]))
+AM_CONDITIONAL(FLaC__WITH_PROGRAMS, [test "x$enable_programs" != "xno"])
+
+dnl Build examples?
+AC_ARG_ENABLE([examples],
+ AS_HELP_STRING([--disable-examples], [Do not build and install examples]))
+AM_CONDITIONAL([EXAMPLES], [test "x$enable_examples" != "xno"])
+
+dnl Ask git which version FLAC is
+AC_ARG_ENABLE([version-from-git],
+ AS_HELP_STRING([--disable-version-from-git], [Do not use git tag, commit hash and commit date for version number]),
+ [ enable_version_from_git=$enableval ], [ enable_version_from_git=yes ])
+
+
+dnl check for i18n(internationalization); these are from libiconv/gettext
+AM_ICONV
+AM_LANGINFO_CODESET
+
+AC_CHECK_PROGS(PANDOC, pandoc)
+AM_CONDITIONAL(FLaC__HAS_PANDOC, test -n "$PANDOC")
+if test -n "$PANDOC" ; then
+ AC_DEFINE(FLAC__HAS_PANDOC)
+ AH_TEMPLATE(FLAC__HAS_PANDOC, [define if you have pandoc])
+else
+if test -f "$srcdir/man/flac.1" && test -f "$srcdir/man/metaflac.1" ; then
+ HAS_PREBUILT_MANPAGES=yes
+fi
+fi
+AM_CONDITIONAL(FLaC__HAS_PREBUILT_MANPAGES, test "x$HAS_PREBUILT_MANPAGES" = "xyes")
+
+AC_CHECK_LIB(rt, clock_gettime,
+ LIB_CLOCK_GETTIME=-lrt
+ AC_DEFINE(HAVE_CLOCK_GETTIME)
+ AH_TEMPLATE(HAVE_CLOCK_GETTIME, [define if you have clock_gettime]))
+AC_SUBST(LIB_CLOCK_GETTIME)
+
+XIPH_GCC_VERSION dnl Sets a non-zero GCC_XXX_VERSION for gcc, not clang. checks below rely on that..
+
+if test x$ac_cv_c_compiler_gnu = xyes -o x$xiph_cv_c_compiler_clang = xyes ; then
+ dnl Prepend defaults to CFLAGS for GCC and Clang
+ AS_IF([test "x${ax_enable_debug}" = "xno"], [
+ CFLAGS="-O3 -funroll-loops $CFLAGS"
+ CXXFLAGS="-O3 $CXXFLAGS"
+ ])
+
+ CFLAGS="$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
+ CXXFLAGS="$CXXFLAGS -Wall -Wextra -Wcast-align -Wshadow -Wwrite-strings -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder -Wsign-promo -Wundef " # -Wcast-qual -Wbad-function-cast -Wwrite-strings -Woverloaded-virtual -Wmissing-declarations
+
+ XIPH_ADD_CFLAGS([-Wdeclaration-after-statement])
+
+ dnl some distributions (such as Gentoo) have _FORTIFY_SOURCE always
+ dnl enabled. We test for this situation in order to prevent polluting
+ dnl the console with messages of macro redefinitions.
+
+ if test "$enable_fortify_source" = "yes" && test "x$mingw_has_memset_chk" != "xno"
+ then
+ AX_ADD_FORTIFY_SOURCE
+ fi
+
+ AC_LANG_PUSH([C++])
+ XIPH_ADD_CXXFLAGS([-Weffc++])
+ AC_LANG_POP([C++])
+
+ if test x$xiph_cv_c_compiler_clang = xyes -a "$OBJ_FORMAT" = elf; then
+ CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
+ CFLAGS="$CFLAGS -fvisibility=hidden"
+ CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
+ elif test "$GCC_MAJOR_VERSION" -ge 4 && test "$OBJ_FORMAT" = elf; then
+ CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
+ CFLAGS="$CFLAGS -fvisibility=hidden"
+ CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
+ fi
+
+
+ if test x$xiph_cv_c_compiler_clang = xyes -a "$OBJ_FORMAT" = macho; then
+ CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
+ CFLAGS="$CFLAGS -fvisibility=hidden"
+ CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
+ elif test "$GCC_MAJOR_VERSION" -ge 4 && test "$OBJ_FORMAT" = macho; then
+ CPPFLAGS="$CPPFLAGS -DFLAC__USE_VISIBILITY_ATTR"
+ CFLAGS="$CFLAGS -fvisibility=hidden"
+ CXXFLAGS="$CXXFLAGS -fvisibility=hidden"
+ fi
+
+ if test "x$GCC_MAJOR_VERSION$GCC_MINOR_VERSION" = "x42" ; then
+ XIPH_ADD_CFLAGS([-fgnu89-inline])
+ fi
+
+ if test "x$GCC_MAJOR_VERSION$GCC_MINOR_VERSION" = "x47" ; then
+ XIPH_ADD_CFLAGS([-fno-inline-small-functions])
+ fi
+
+ fi
+
+case "$host_os" in
+ "mingw32"|"os2")
+ if test "$host_cpu" = "i686"; then
+ XIPH_ADD_CFLAGS([-mstackrealign])
+ fi
+ esac
+
+if test x$enable_werror = "xyes" ; then
+ XIPH_ADD_CFLAGS([-Werror])
+ AC_LANG_PUSH([C++])
+ XIPH_ADD_CXXFLAGS([-Werror])
+ AC_LANG_POP([C++])
+ fi
+
+if test x$enable_stack_smash_protection = "xyes" && test "x$mingw_has_stack_chk_fail" != "xno" ; then
+ XIPH_GCC_STACK_PROTECTOR
+ XIPH_GXX_STACK_PROTECTOR
+else
+ enable_stack_smash_protection=no
+fi
+
+AH_VERBATIM([FLAC_API_EXPORTS],
+[/* libtool defines DLL_EXPORT for windows dll builds,
+ but flac code relies on FLAC_API_EXPORTS instead. */
+#ifdef DLL_EXPORT
+#ifdef __cplusplus
+# define FLACPP_API_EXPORTS
+#else
+# define FLAC_API_EXPORTS
+#endif
+#endif])
+
+if test x$enable_static = "xyes" ; then
+dnl for correct FLAC_API
+ CPPFLAGS="-DFLAC__NO_DLL $CPPFLAGS"
+ fi
+
+AC_CHECK_PROG(GIT_FOUND,git,yes)
+
+if test x$GIT_FOUND$enable_version_from_git = "xyesyes"; then
+ GIT_COMMIT_TAG=`git -C $srcdir --git-dir=.git describe --tags --exact-match 2>/dev/null`
+ GIT_COMMIT_HASH=`git -C $srcdir --git-dir=.git log -1 --pretty=format:%h 2>/dev/null`
+ GIT_COMMIT_DATE=`git -C $srcdir --git-dir=.git log -1 --pretty=format:%cd --date=format:%Y%m%d 2>/dev/null`
+ if test ${#GIT_COMMIT_HASH} = 8 && test ${#GIT_COMMIT_DATE} = 8; then
+ GIT_COMMIT_VERSION_AVAIL=yes
+ if test ${#GIT_COMMIT_TAG} != 0 ; then
+ GIT_COMMIT_TAG_AVAIL=yes
+ AC_DEFINE_UNQUOTED(GIT_COMMIT_TAG, "${GIT_COMMIT_TAG}", "Define to the tag of the current git HEAD")
+ else
+ GIT_COMMIT_VERSION_HASH=yes
+ fi
+ AC_DEFINE_UNQUOTED(GIT_COMMIT_HASH, "${GIT_COMMIT_HASH}", "Define to the short hash of the current git HEAD")
+ AC_DEFINE_UNQUOTED(GIT_COMMIT_DATE, "${GIT_COMMIT_DATE}", "Define to the commit date of the current git HEAD")
+ fi
+fi
+
+AC_SUBST(GIT_COMMIT_VERSION_HASH)
+
+AX_CHECK_COMPILE_FLAG([-fassociative-math -fno-signed-zeros -fno-trapping-math -freciprocal-math],HAVE_ASSOC_MATH=yes)
+AM_CONDITIONAL(ASSOC_MATH_AVAILABLE, test "x$HAVE_ASSOC_MATH" = "xyes")
+
+
+AC_CONFIG_FILES([ \
+ Makefile \
+ src/Makefile \
+ src/libFLAC/Makefile \
+ src/libFLAC/flac.pc \
+ src/libFLAC/include/Makefile \
+ src/libFLAC/include/private/Makefile \
+ src/libFLAC/include/protected/Makefile \
+ src/libFLAC++/Makefile \
+ src/libFLAC++/flac++.pc \
+ src/flac/Makefile \
+ src/metaflac/Makefile \
+ src/share/Makefile \
+ src/test_grabbag/Makefile \
+ src/test_grabbag/cuesheet/Makefile \
+ src/test_grabbag/picture/Makefile \
+ src/test_libs_common/Makefile \
+ src/test_libFLAC/Makefile \
+ src/test_libFLAC++/Makefile \
+ src/test_seeking/Makefile \
+ src/test_streams/Makefile \
+ src/utils/Makefile \
+ src/utils/flacdiff/Makefile \
+ src/utils/flactimer/Makefile \
+ examples/Makefile \
+ examples/c/Makefile \
+ examples/c/decode/Makefile \
+ examples/c/decode/file/Makefile \
+ examples/c/encode/Makefile \
+ examples/c/encode/file/Makefile \
+ examples/cpp/Makefile \
+ examples/cpp/decode/Makefile \
+ examples/cpp/decode/file/Makefile \
+ examples/cpp/encode/Makefile \
+ examples/cpp/encode/file/Makefile \
+ include/Makefile \
+ include/FLAC/Makefile \
+ include/FLAC++/Makefile \
+ include/share/Makefile \
+ include/share/grabbag/Makefile \
+ include/test_libs_common/Makefile \
+ doc/Doxyfile \
+ doc/Makefile \
+ doc/images/Makefile \
+ m4/Makefile \
+ man/Makefile \
+ test/common.sh \
+ test/Makefile \
+ test/cuesheets/Makefile \
+ test/foreign-metadata-test-files/Makefile \
+ test/flac-to-flac-metadata-test-files/Makefile \
+ test/metaflac-test-files/Makefile \
+ test/pictures/Makefile \
+ microbench/Makefile \
+ oss-fuzz/Makefile
+])
+AC_OUTPUT
+
+AC_MSG_RESULT([
+-=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-
+
+ Configuration summary :
+
+ FLAC version : ............................ ${VERSION}
+
+ Host CPU : ................................ ${host_cpu}
+ Host Vendor : ............................. ${host_vendor}
+ Host OS : ................................. ${host_os}
+])
+
+if test x$GIT_COMMIT_TAG_AVAIL = xyes ; then
+ echo " Version string : reference libFLAC ${GIT_COMMIT_TAG} ${GIT_COMMIT_DATE}"
+elif test x$GIT_COMMIT_VERSION_AVAIL = xyes ; then
+ echo " Version string : reference libFLAC git-${GIT_COMMIT_HASH} ${GIT_COMMIT_DATE}"
+fi
+ echo ""
+ echo " Compiler is GCC : ......................... ${ac_cv_c_compiler_gnu}"
+if test x$ac_cv_c_compiler_gnu = xyes ; then
+ echo " GCC version : ............................. ${GCC_VERSION}"
+fi
+ echo " Compiler is Clang : ....................... ${xiph_cv_c_compiler_clang}"
+ echo " Asm optimizations : ....................... ${asm_optimisation}"
+ echo " Ogg/FLAC support : ........................ ${have_ogg}"
+ echo " Stack protector : ........................ ${enable_stack_smash_protection}"
+ echo " Fuzzing support (Clang only) : ............ ${have_oss_fuzzers}"
+echo