# Copyright (C) 2002-2011 Erik de Castro Lopo (erikd AT mega-nerd DOT com). dnl Require autoconf version AC_PREREQ(2.57) AC_INIT([libsamplerate],[0.1.8],[erikd@mega-nerd.com], [libsamplerate],[http://www.mega-nerd.com/libsamplerate/]) # Put config stuff in Cfg. AC_CONFIG_AUX_DIR(Cfg) AC_CONFIG_SRCDIR([src/samplerate.c]) AC_CANONICAL_TARGET([]) AC_CONFIG_MACRO_DIR([M4]) AC_CONFIG_HEADERS([src/config.h]) AM_INIT_AUTOMAKE($PACKAGE_NAME,$PACKAGE_VERSION) AM_SILENT_RULES([yes]) dnl Add parameters for aclocal AC_SUBST(ACLOCAL_AMFLAGS, "-I M4") AC_LANG([C]) AC_PROG_CC AM_PROG_CC_C_O AC_PROG_CXX AC_PROG_SED # Do not check for F77. define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl AM_PROG_LIBTOOL LT_PROG_RC AC_PROG_INSTALL AC_PROG_LN_S #------------------------------------------------------------------------------------ # Rules for library version information: # # 1. Start with version information of `0:0:0' for each libtool library. # 2. Update the version information only immediately before a public release of # your software. More frequent updates are unnecessary, and only guarantee # that the current interface number gets larger faster. # 3. If the library source code has changed at all since the last update, then # increment revision (`c:r:a' becomes `c:r+1:a'). # 4. If any interfaces have been added, removed, or changed since the last update, # increment current, and set revision to 0. # 5. If any interfaces have been added since the last public release, then increment # age. # 6. If any interfaces have been removed since the last public release, then set age # to 0. SHARED_VERSION_INFO="1:8:1" AC_PROG_MAKE_SET AC_PROG_LN_S AC_PROG_MKDIR_P if test "x-$build_os-$host_os-$target_os" = x-mingw32-mingw32-mingw32 ; then AC_CHECK_PROG(DLLTOOL, dlltool, dlltool) AC_CHECK_PROG(DLLWRAP, dllwrap, dllwrap) AC_CHECK_PROG(PEXPORTS, pexports, pexports) fi AC_HEADER_STDC AC_CHECK_HEADERS(stdint.h sys/times.h) #==================================================================================== # Couple of initializations here. Fill in real values later. SHLIB_VERSION_ARG="" #==================================================================================== # Finished checking, handle options. AC_ARG_ENABLE(gcc-werror, AC_HELP_STRING([--enable-gcc-werror], [enable -Werror in all Makefiles]), ac_arg_gcc_werror=yes, ac_arg_gcc_werror=no) AC_ARG_ENABLE(gcc-pipe, AC_HELP_STRING([--disable-gcc-pipe], [disable gcc -pipe option ]), ac_arg_gcc_pipe="N", ac_arg_gcc_pipe="Y") AC_ARG_ENABLE(gcc-opt, AC_HELP_STRING([--disable-gcc-opt], [disable gcc optimisations ]), ac_arg_gcc_opt="N", ac_arg_gcc_opt="Y") AC_ARG_ENABLE(fftw, AC_HELP_STRING([--disable-fftw], [disable usage of FFTW ]), ac_arg_fftw="N", ac_arg_fftw="Y") AC_ARG_ENABLE(cpu-clip, AC_HELP_STRING([--disable-cpu-clip], [disable tricky cpu specific clipper]), ac_arg_cpu_clip="N", ac_arg_cpu_clip="Y") #==================================================================================== # Check types and their sizes. AC_CHECK_SIZEOF(int,0) AC_CHECK_SIZEOF(long,0) AC_CHECK_SIZEOF(float,4) AC_CHECK_SIZEOF(double,8) #==================================================================================== # Determine endian-ness of target processor. AC_C_FIND_ENDIAN AC_DEFINE_UNQUOTED(CPU_IS_BIG_ENDIAN, ${ac_cv_c_big_endian}, [Target processor is big endian.]) AC_DEFINE_UNQUOTED(CPU_IS_LITTLE_ENDIAN, ${ac_cv_c_little_endian}, [Target processor is little endian.]) #==================================================================================== # Check for functions. AC_CHECK_FUNCS(malloc calloc free memcpy memmove alarm signal) AC_CHECK_LIB([m],floor) AC_CHECK_FUNCS(floor ceil fmod) AC_CHECK_SIGNAL(SIGALRM) AC_C99_FUNC_LRINT AC_C99_FUNC_LRINTF # AC_C99_FUNC_LLRINT Don't need this (yet?). case "x$ac_cv_c99_lrint$ac_cv_c99_lrintf" in xyesyes) ;; *) AC_MSG_WARN([[*** Missing C99 standard functions lrint() and lrintf().]]) AC_MSG_WARN([[*** This may cause benign compiler warnings on some systems (ie Solaris).]]) ;; esac #==================================================================================== # Determine if the processor can do clipping on float to int conversions. if test x$ac_arg_cpu_clip = "xY" ; then AC_C_CLIP_MODE else echo "checking processor clipping capabilities... disabled" ac_cv_c_clip_positive=0 ac_cv_c_clip_negative=0 fi AC_DEFINE_UNQUOTED(CPU_CLIPS_POSITIVE, ${ac_cv_c_clip_positive}, [Target processor clips on positive float to int conversion.]) AC_DEFINE_UNQUOTED(CPU_CLIPS_NEGATIVE, ${ac_cv_c_clip_negative}, [Target processor clips on negative float to int conversion.]) #==================================================================================== # Check for libsndfile which is required for the test and example programs. AC_ARG_ENABLE(sndfile, AC_HELP_STRING([--disable-sndfile], [disable support for sndfile (default=autodetect)]), [ enable_sndfile=$enableval ], [ enable_sndfile=yes ]) # Check for pkg-config outside the if statement. PKG_PROG_PKG_CONFIG if test "x$enable_sndfile" = "xyes"; then PKG_CHECK_MODULES(SNDFILE, sndfile >= 1.0.6, ac_cv_sndfile=1, ac_cv_sndfile=0) else ac_cv_sndfile=0 fi AC_DEFINE_UNQUOTED([HAVE_SNDFILE],$ac_cv_sndfile,[Set to 1 if you have libsndfile.]) if test x$ac_cv_sndfile = x1 ; then ac_cv_sndfile=yes HAVE_SNDFILE=1 else ac_cv_sndfile=no HAVE_SNDFILE=0 fi #==================================================================================== # Check for libfftw3 which is required for the test and example programs. if test $ac_arg_fftw = "Y" ; then PKG_CHECK_MODULES(FFTW3, fftw3 >= 0.15.0, ac_cv_fftw3=1, ac_cv_fftw3=0) AC_DEFINE_UNQUOTED([HAVE_FFTW3],$ac_cv_fftw3,[Set to 1 if you have libfftw3.]) if test x$ac_cv_fftw3 = x1 ; then ac_cv_fftw3=yes HAVE_FFTW3=1 fi fi if test x$ac_cv_fftw3 != xyes ; then ac_cv_fftw3=no HAVE_FFTW3=0 fi #==================================================================================== # GCC stuff. if test $ac_cv_c_compiler_gnu = yes ; then CFLAGS="$CFLAGS -std=gnu99 -W -Wstrict-prototypes -Wmissing-prototypes -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wpointer-arith" # -Wundef -Wbad-function-cast -Wmissing-declarations -Wconversion -Winline" if test "$ac_arg_gcc_opt" = "N" ; then temp_CFLAGS=`echo $CFLAGS | sed "s/O2/O0/"` CFLAGS=$temp_CFLAGS AC_MSG_WARN([[*** Compiler optimisations switched off. ***]]) fi # Disable -Wall for Apple Darwin/Rhapsody. # System headers on these systems are broken. case "$target_os" in darwin* | rhapsody*) temp_CFLAGS=`echo $CFLAGS | sed "s/-Wall//"` CFLAGS=$temp_CFLAGS ;; linux*|kfreebsd*-gnu*|gnu*) SHLIB_VERSION_ARG="-Wl,--version-script=Version_script" ;; *) ;; esac if test x$ac_arg_gcc_pipe != "xN" ; then CFLAGS="$CFLAGS -pipe" fi if test x$ac_arg_gcc_werror = "xyes" ; then CFLAGS="-Werror $CFLAGS" fi AC_DEFINE([COMPILER_IS_GCC],1, [Set to 1 if the compile is GNU GCC.]) GCC_MAJOR_VERSION=`$CC -dumpversion | sed "s/\..*//"` AC_DEFINE_UNQUOTED([GCC_MAJOR_VERSION],${GCC_MAJOR_VERSION}, [Major version of GCC or 3 otherwise.]) fi #==================================================================================== # Find known target OS. OS_SPECIFIC_INCLUDES="" os_is_win32=0 case "$target_os" in darwin* | rhapsody*) OS_SPECIFIC_INCLUDES="-fpascal-strings -I/Developer/Headers/FlatCarbon" OS_SPECIFIC_LINKS="-framework CoreAudio" ;; mingw32*) OS_SPECIFIC_LINKS="-lwinmm" os_is_win32=1 ;; *) OS_SPECIFIC_INCLUDES="" OS_SPECIFIC_LINKS="" ;; esac htmldocdir=$prefix/share/doc/libsamplerate0-dev/html if test $prefix = "NONE" ; then htmldocdir=/usr/local/share/doc/libsamplerate0-dev/html else htmldocdir=$prefix/share/doc/libsamplerate0-dev/html fi #==================================================================================== # Now use the information from the checking stage. AC_DEFINE_UNQUOTED(OS_IS_WIN32, ${os_is_win32}, [Set to 1 if compiling for Win32]) AC_SUBST(htmldocdir) AC_SUBST(SHLIB_VERSION_ARG) AC_SUBST(SHARED_VERSION_INFO) AC_SUBST(OS_SPECIFIC_INCLUDES) AC_SUBST(OS_SPECIFIC_LINKS) AC_SUBST(COMPILER_IS_GCC) AC_SUBST(GCC_MAJOR_VERSION) AC_SUBST(HAVE_FFTW3) AC_SUBST(FFTW3_CFLAGS) AC_SUBST(FFTW3_LIBS) AC_SUBST(HAVE_SNDFILE) AC_SUBST(SNDFILE_CFLAGS) AC_SUBST(SNDFILE_LIBS) AC_CONFIG_FILES([Makefile M4/Makefile src/Version_script \ Win32/Makefile Win32/Makefile.mingw \ src/Makefile examples/Makefile tests/Makefile doc/Makefile \ libsamplerate.spec samplerate.pc]) AC_OUTPUT #==================================================================================== AC_MSG_RESULT([ -=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-=- Configuration summary : Version : ..................... ${VERSION} Host CPU : .................... ${host_cpu} Host Vendor : ................. ${host_vendor} Host OS : ..................... ${host_os} ]) if test x$ac_cv_c_compiler_gnu = xyes ; then echo -e " Tools :\n" echo " Compiler is GCC : ............. ${ac_cv_c_compiler_gnu}" echo " GCC major version : ........... ${GCC_MAJOR_VERSION}" fi AC_MSG_RESULT([ Extra tools required for testing and examples : Use FFTW : .................... ${ac_cv_fftw3}]) AC_MSG_RESULT([ Have libsndfile : ............. ${ac_cv_sndfile} ]) AC_MSG_RESULT([ Installation directories : Library directory : ........... ${prefix}/lib Program directory : ........... ${prefix}/bin Pkgconfig directory : ......... ${prefix}/lib/pkgconfig ]) if test x$prefix != "x/usr" ; then echo "Compiling some other packages against ${PACKAGE} may require " echo -e "the addition of \"${prefix}/lib/pkgconfig\" to the " echo -e "PKG_CONFIG_PATH environment variable.\n" fi