cannam@85: # Copyright (C) 2002-2011 Erik de Castro Lopo (erikd AT mega-nerd DOT com).
cannam@85: 
cannam@85: dnl Require autoconf version
cannam@85: AC_PREREQ(2.57)
cannam@85: 
cannam@85: AC_INIT([libsamplerate],[0.1.8],[erikd@mega-nerd.com],
cannam@85: 		[libsamplerate],[http://www.mega-nerd.com/libsamplerate/])
cannam@85: 
cannam@85: # Put config stuff in Cfg.
cannam@85: AC_CONFIG_AUX_DIR(Cfg)
cannam@85: 
cannam@85: AC_CONFIG_SRCDIR([src/samplerate.c])
cannam@85: AC_CANONICAL_TARGET([])
cannam@85: 
cannam@85: AC_CONFIG_MACRO_DIR([M4])
cannam@85: AC_CONFIG_HEADERS([src/config.h])
cannam@85: 
cannam@85: AM_INIT_AUTOMAKE($PACKAGE_NAME,$PACKAGE_VERSION)
cannam@85: AM_SILENT_RULES([yes])
cannam@85: 
cannam@85: dnl Add parameters for aclocal
cannam@85: AC_SUBST(ACLOCAL_AMFLAGS, "-I M4")
cannam@85: 
cannam@85: AC_LANG([C])
cannam@85: 
cannam@85: AC_PROG_CC
cannam@85: AM_PROG_CC_C_O
cannam@85: AC_PROG_CXX
cannam@85: AC_PROG_SED
cannam@85: 
cannam@85: # Do not check for F77.
cannam@85: define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
cannam@85: 
cannam@85: AM_PROG_LIBTOOL
cannam@85: LT_PROG_RC
cannam@85: 
cannam@85: AC_PROG_INSTALL
cannam@85: AC_PROG_LN_S
cannam@85: 
cannam@85: #------------------------------------------------------------------------------------
cannam@85: # Rules for library version information:
cannam@85: #
cannam@85: #  1. Start with version information of `0:0:0' for each libtool library.
cannam@85: #  2. Update the version information only immediately before a public release of
cannam@85: #     your software. More frequent updates are unnecessary, and only guarantee
cannam@85: #     that the current interface number gets larger faster.
cannam@85: #  3. If the library source code has changed at all since the last update, then
cannam@85: #     increment revision (`c:r:a' becomes `c:r+1:a').
cannam@85: #  4. If any interfaces have been added, removed, or changed since the last update,
cannam@85: #     increment current, and set revision to 0.
cannam@85: #  5. If any interfaces have been added since the last public release, then increment
cannam@85: #     age.
cannam@85: #  6. If any interfaces have been removed since the last public release, then set age
cannam@85: #     to 0.
cannam@85: 
cannam@85: SHARED_VERSION_INFO="1:8:1"
cannam@85: 
cannam@85: 
cannam@85: 
cannam@85: 
cannam@85: 
cannam@85: AC_PROG_MAKE_SET
cannam@85: AC_PROG_LN_S
cannam@85: AC_PROG_MKDIR_P
cannam@85: 
cannam@85: if test "x-$build_os-$host_os-$target_os" = x-mingw32-mingw32-mingw32 ; then
cannam@85: 	AC_CHECK_PROG(DLLTOOL, dlltool, dlltool)
cannam@85: 	AC_CHECK_PROG(DLLWRAP, dllwrap, dllwrap)
cannam@85: 	AC_CHECK_PROG(PEXPORTS, pexports, pexports)
cannam@85: 	fi
cannam@85: 
cannam@85: AC_HEADER_STDC
cannam@85: 
cannam@85: AC_CHECK_HEADERS(stdint.h sys/times.h)
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Couple of initializations here. Fill in real values later.
cannam@85: 
cannam@85: SHLIB_VERSION_ARG=""
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Finished checking, handle options.
cannam@85: 
cannam@85: AC_ARG_ENABLE(gcc-werror,
cannam@85: 	AC_HELP_STRING([--enable-gcc-werror], [enable -Werror in all Makefiles]),
cannam@85: 	ac_arg_gcc_werror=yes, ac_arg_gcc_werror=no)
cannam@85: 
cannam@85: AC_ARG_ENABLE(gcc-pipe,
cannam@85: 		AC_HELP_STRING([--disable-gcc-pipe], [disable gcc -pipe option ]),
cannam@85: 		ac_arg_gcc_pipe="N", ac_arg_gcc_pipe="Y")
cannam@85: 
cannam@85: AC_ARG_ENABLE(gcc-opt,
cannam@85: 		AC_HELP_STRING([--disable-gcc-opt], [disable gcc optimisations ]),
cannam@85: 		ac_arg_gcc_opt="N", ac_arg_gcc_opt="Y")
cannam@85: 
cannam@85: AC_ARG_ENABLE(fftw,
cannam@85: 		AC_HELP_STRING([--disable-fftw], [disable usage of FFTW ]),
cannam@85: 		ac_arg_fftw="N", ac_arg_fftw="Y")
cannam@85: 
cannam@85: AC_ARG_ENABLE(cpu-clip,
cannam@85: 		AC_HELP_STRING([--disable-cpu-clip], [disable tricky cpu specific clipper]),
cannam@85: 		ac_arg_cpu_clip="N", ac_arg_cpu_clip="Y")
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Check types and their sizes.
cannam@85: 
cannam@85: AC_CHECK_SIZEOF(int,0)
cannam@85: AC_CHECK_SIZEOF(long,0)
cannam@85: AC_CHECK_SIZEOF(float,4)
cannam@85: AC_CHECK_SIZEOF(double,8)
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Determine endian-ness of target processor.
cannam@85: 
cannam@85: AC_C_FIND_ENDIAN
cannam@85: 
cannam@85: AC_DEFINE_UNQUOTED(CPU_IS_BIG_ENDIAN, ${ac_cv_c_big_endian},
cannam@85:         [Target processor is big endian.])
cannam@85: AC_DEFINE_UNQUOTED(CPU_IS_LITTLE_ENDIAN, ${ac_cv_c_little_endian},
cannam@85:         [Target processor is little endian.])
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Check for functions.
cannam@85: 
cannam@85: AC_CHECK_FUNCS(malloc calloc free memcpy memmove alarm signal)
cannam@85: 
cannam@85: AC_CHECK_LIB([m],floor)
cannam@85: AC_CHECK_FUNCS(floor ceil fmod)
cannam@85: 
cannam@85: AC_CHECK_SIGNAL(SIGALRM)
cannam@85: 
cannam@85: AC_C99_FUNC_LRINT
cannam@85: AC_C99_FUNC_LRINTF
cannam@85: # AC_C99_FUNC_LLRINT  Don't need this (yet?).
cannam@85: 
cannam@85: case "x$ac_cv_c99_lrint$ac_cv_c99_lrintf" in
cannam@85: 	xyesyes)
cannam@85: 		;;
cannam@85: 	*)
cannam@85: 		AC_MSG_WARN([[*** Missing C99 standard functions lrint() and lrintf().]])
cannam@85: 		AC_MSG_WARN([[*** This may cause benign compiler warnings on some systems (ie Solaris).]])
cannam@85: 		;;
cannam@85: 	esac
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Determine if the processor can do clipping on float to int conversions.
cannam@85: 
cannam@85: if test x$ac_arg_cpu_clip = "xY" ; then
cannam@85: 	AC_C_CLIP_MODE
cannam@85: else
cannam@85: 	echo "checking processor clipping capabilities... disabled"
cannam@85: 	ac_cv_c_clip_positive=0
cannam@85: 	ac_cv_c_clip_negative=0
cannam@85: 	fi
cannam@85: 
cannam@85: AC_DEFINE_UNQUOTED(CPU_CLIPS_POSITIVE, ${ac_cv_c_clip_positive},
cannam@85: 	[Target processor clips on positive float to int conversion.])
cannam@85: AC_DEFINE_UNQUOTED(CPU_CLIPS_NEGATIVE, ${ac_cv_c_clip_negative},
cannam@85: 	[Target processor clips on negative float to int conversion.])
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Check for libsndfile which is required for the test and example programs.
cannam@85: 
cannam@85: AC_ARG_ENABLE(sndfile,
cannam@85: 	AC_HELP_STRING([--disable-sndfile], [disable support for sndfile (default=autodetect)]),
cannam@85: 	[ enable_sndfile=$enableval ], [ enable_sndfile=yes ])
cannam@85: 
cannam@85: # Check for pkg-config outside the if statement.
cannam@85: PKG_PROG_PKG_CONFIG
cannam@85: 
cannam@85: if test "x$enable_sndfile" = "xyes"; then
cannam@85: 	PKG_CHECK_MODULES(SNDFILE, sndfile >= 1.0.6, ac_cv_sndfile=1, ac_cv_sndfile=0)
cannam@85: else
cannam@85: 	ac_cv_sndfile=0
cannam@85: fi
cannam@85: 
cannam@85: AC_DEFINE_UNQUOTED([HAVE_SNDFILE],$ac_cv_sndfile,[Set to 1 if you have libsndfile.])
cannam@85: 
cannam@85: if test x$ac_cv_sndfile = x1 ; then
cannam@85: 	ac_cv_sndfile=yes
cannam@85: 	HAVE_SNDFILE=1
cannam@85: else
cannam@85: 	ac_cv_sndfile=no
cannam@85: 	HAVE_SNDFILE=0
cannam@85: 	fi
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Check for libfftw3 which is required for the test and example programs.
cannam@85: 
cannam@85: if test $ac_arg_fftw = "Y" ; then
cannam@85: 	PKG_CHECK_MODULES(FFTW3, fftw3 >= 0.15.0, ac_cv_fftw3=1, ac_cv_fftw3=0)
cannam@85: 	AC_DEFINE_UNQUOTED([HAVE_FFTW3],$ac_cv_fftw3,[Set to 1 if you have libfftw3.])
cannam@85: 
cannam@85: 	if test x$ac_cv_fftw3 = x1 ; then
cannam@85: 		ac_cv_fftw3=yes
cannam@85: 		HAVE_FFTW3=1
cannam@85: 		fi
cannam@85: 	fi
cannam@85: 
cannam@85: if test x$ac_cv_fftw3 != xyes ; then
cannam@85: 	ac_cv_fftw3=no
cannam@85: 	HAVE_FFTW3=0
cannam@85: 	fi
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # GCC stuff.
cannam@85: 
cannam@85: if test $ac_cv_c_compiler_gnu = yes ; then
cannam@85: 	CFLAGS="$CFLAGS -std=gnu99 -W -Wstrict-prototypes -Wmissing-prototypes -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wpointer-arith"
cannam@85: 	# -Wundef -Wbad-function-cast -Wmissing-declarations -Wconversion -Winline"
cannam@85: 	if test "$ac_arg_gcc_opt" = "N" ; then
cannam@85: 		temp_CFLAGS=`echo $CFLAGS | sed "s/O2/O0/"`
cannam@85: 		CFLAGS=$temp_CFLAGS
cannam@85: 		AC_MSG_WARN([[*** Compiler optimisations switched off. ***]])
cannam@85: 		fi
cannam@85: 
cannam@85: 	# Disable -Wall for Apple Darwin/Rhapsody.
cannam@85: 	# System headers on these systems are broken.
cannam@85: 	case "$target_os" in
cannam@85: 		darwin* | rhapsody*)
cannam@85: 			temp_CFLAGS=`echo $CFLAGS | sed "s/-Wall//"`
cannam@85: 			CFLAGS=$temp_CFLAGS
cannam@85: 			;;
cannam@85: 
cannam@85: 		linux*|kfreebsd*-gnu*|gnu*)
cannam@85: 			SHLIB_VERSION_ARG="-Wl,--version-script=Version_script"
cannam@85: 			;;
cannam@85: 		*)
cannam@85: 			;;
cannam@85: 		esac
cannam@85: 	if test x$ac_arg_gcc_pipe != "xN" ; then
cannam@85: 	 	CFLAGS="$CFLAGS -pipe"
cannam@85: 	 	fi
cannam@85: 
cannam@85: 	if test x$ac_arg_gcc_werror = "xyes" ; then
cannam@85: 		CFLAGS="-Werror $CFLAGS"
cannam@85: 		fi
cannam@85: 
cannam@85: 	AC_DEFINE([COMPILER_IS_GCC],1, [Set to 1 if the compile is GNU GCC.])
cannam@85: 	GCC_MAJOR_VERSION=`$CC -dumpversion | sed "s/\..*//"`
cannam@85: 	AC_DEFINE_UNQUOTED([GCC_MAJOR_VERSION],${GCC_MAJOR_VERSION}, [Major version of GCC or 3 otherwise.])
cannam@85: 	fi
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Find known target OS.
cannam@85: 
cannam@85: OS_SPECIFIC_INCLUDES=""
cannam@85: os_is_win32=0
cannam@85: 
cannam@85: case "$target_os" in
cannam@85: 	darwin* | rhapsody*)
cannam@85: 		OS_SPECIFIC_INCLUDES="-fpascal-strings -I/Developer/Headers/FlatCarbon"
cannam@85: 		OS_SPECIFIC_LINKS="-framework CoreAudio"
cannam@85: 		;;
cannam@85: 	mingw32*)
cannam@85: 		OS_SPECIFIC_LINKS="-lwinmm"
cannam@85: 		os_is_win32=1
cannam@85: 		;;
cannam@85: 	*)
cannam@85: 		OS_SPECIFIC_INCLUDES=""
cannam@85: 		OS_SPECIFIC_LINKS=""
cannam@85: 		;;
cannam@85: 	esac
cannam@85: 
cannam@85: htmldocdir=$prefix/share/doc/libsamplerate0-dev/html
cannam@85: 
cannam@85: if test $prefix = "NONE" ; then
cannam@85: 	htmldocdir=/usr/local/share/doc/libsamplerate0-dev/html
cannam@85: else
cannam@85: 	htmldocdir=$prefix/share/doc/libsamplerate0-dev/html
cannam@85: 	fi
cannam@85: 
cannam@85: #====================================================================================
cannam@85: # Now use the information from the checking stage.
cannam@85: 
cannam@85: AC_DEFINE_UNQUOTED(OS_IS_WIN32, ${os_is_win32}, [Set to 1 if compiling for Win32])
cannam@85: 
cannam@85: AC_SUBST(htmldocdir)
cannam@85: 
cannam@85: AC_SUBST(SHLIB_VERSION_ARG)
cannam@85: AC_SUBST(SHARED_VERSION_INFO)
cannam@85: AC_SUBST(OS_SPECIFIC_INCLUDES)
cannam@85: AC_SUBST(OS_SPECIFIC_LINKS)
cannam@85: 
cannam@85: AC_SUBST(COMPILER_IS_GCC)
cannam@85: AC_SUBST(GCC_MAJOR_VERSION)
cannam@85: 
cannam@85: AC_SUBST(HAVE_FFTW3)
cannam@85: AC_SUBST(FFTW3_CFLAGS)
cannam@85: AC_SUBST(FFTW3_LIBS)
cannam@85: 
cannam@85: AC_SUBST(HAVE_SNDFILE)
cannam@85: AC_SUBST(SNDFILE_CFLAGS)
cannam@85: AC_SUBST(SNDFILE_LIBS)
cannam@85: 
cannam@85: AC_CONFIG_FILES([Makefile M4/Makefile src/Version_script \
cannam@85: 			Win32/Makefile Win32/Makefile.mingw \
cannam@85: 			src/Makefile examples/Makefile tests/Makefile doc/Makefile \
cannam@85: 			libsamplerate.spec samplerate.pc])
cannam@85: AC_OUTPUT
cannam@85: 
cannam@85: #====================================================================================
cannam@85: 
cannam@85: AC_MSG_RESULT([
cannam@85: -=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-=-
cannam@85: 
cannam@85:   Configuration summary :
cannam@85: 
cannam@85:     Version : ..................... ${VERSION}
cannam@85: 
cannam@85:     Host CPU : .................... ${host_cpu}
cannam@85:     Host Vendor : ................. ${host_vendor}
cannam@85:     Host OS : ..................... ${host_os}
cannam@85: ])
cannam@85: 
cannam@85: if test x$ac_cv_c_compiler_gnu = xyes ; then
cannam@85: 	echo -e "  Tools :\n"
cannam@85: 	echo "    Compiler is GCC : ............. ${ac_cv_c_compiler_gnu}"
cannam@85: 	echo "    GCC major version : ........... ${GCC_MAJOR_VERSION}"
cannam@85: 	fi
cannam@85: 
cannam@85: AC_MSG_RESULT([
cannam@85:   Extra tools required for testing and examples :
cannam@85: 
cannam@85:     Use FFTW : .................... ${ac_cv_fftw3}])
cannam@85: 
cannam@85: AC_MSG_RESULT([    Have libsndfile : ............. ${ac_cv_sndfile}
cannam@85: ])
cannam@85: 
cannam@85: AC_MSG_RESULT([  Installation directories :
cannam@85: 
cannam@85:     Library directory : ........... ${prefix}/lib
cannam@85:     Program directory : ........... ${prefix}/bin
cannam@85:     Pkgconfig directory : ......... ${prefix}/lib/pkgconfig
cannam@85: ])
cannam@85: 
cannam@85: if test x$prefix != "x/usr" ; then
cannam@85: 	echo "Compiling some other packages against ${PACKAGE} may require "
cannam@85: 	echo -e "the addition of \"${prefix}/lib/pkgconfig\" to the "
cannam@85: 	echo -e "PKG_CONFIG_PATH environment variable.\n"
cannam@85: 	fi
cannam@85: