mirror of
https://github.com/cookiengineer/audacity
synced 2025-05-02 16:49:41 +02:00
317 lines
9.2 KiB
Plaintext
317 lines
9.2 KiB
Plaintext
# Copyright (C) 2002-2008 Erik de Castro Lopo (erikd AT mega-nerd DOT com).
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dnl Require autoconf version >= 2.57)
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AC_PREREQ([2.57])
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AC_INIT([libsamplerate],[0.1.7],[erikd@mega-nerd.com])
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# Put config stuff in Cfg.
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AC_CONFIG_AUX_DIR([Cfg])
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AC_CONFIG_SRCDIR([src/samplerate.c])
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AC_CANONICAL_TARGET([])
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AC_CONFIG_MACRO_DIR([M4])
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AM_INIT_AUTOMAKE
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dnl Audacity policy: don't enable automatic rebuild of configure et al if
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dnl sources change
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AM_MAINTAINER_MODE([disable])
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AC_CONFIG_HEADER(src/config.h)
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AC_LANG([C])
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#------------------------------------------------------------------------------------
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# Rules for library version information:
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#
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# 1. Start with version information of `0:0:0' for each libtool library.
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# 2. Update the version information only immediately before a public release of
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# your software. More frequent updates are unnecessary, and only guarantee
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# that the current interface number gets larger faster.
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# 3. If the library source code has changed at all since the last update, then
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# increment revision (`c:r:a' becomes `c:r+1:a').
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# 4. If any interfaces have been added, removed, or changed since the last update,
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# increment current, and set revision to 0.
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# 5. If any interfaces have been added since the last public release, then increment
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# age.
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# 6. If any interfaces have been removed since the last public release, then set age
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# to 0.
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SHARED_VERSION_INFO="1:7:1"
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AC_PROG_CC
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AM_PROG_CC_C_O
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# Do not check for F77.
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define([AC_LIBTOOL_LANG_F77_CONFIG], [:])dnl
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AM_PROG_LIBTOOL
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AC_PROG_INSTALL
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AC_PROG_MAKE_SET
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AC_PROG_LN_S
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AC_PROG_MKDIR_P
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if test "x-$build_os-$host_os-$target_os" = x-mingw32-mingw32-mingw32 ; then
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AC_CHECK_PROG(DLLTOOL, dlltool, dlltool)
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AC_CHECK_PROG(DLLWRAP, dllwrap, dllwrap)
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AC_CHECK_PROG(PEXPORTS, pexports, pexports)
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fi
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AC_HEADER_STDC
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AC_CHECK_HEADERS(stdint.h sys/times.h)
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#====================================================================================
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# Couple of initializations here. Fill in real values later.
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SHLIB_VERSION_ARG=""
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#====================================================================================
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# Finished checking, handle options.
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AC_ARG_ENABLE(gcc-werror,
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AC_HELP_STRING([--enable-gcc-werror], [enable -Werror in all Makefiles]),
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ac_arg_gcc_werror=yes, ac_arg_gcc_werror=no)
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AC_ARG_ENABLE(gcc-pipe,
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AC_HELP_STRING([--disable-gcc-pipe], [disable gcc -pipe option ]),
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ac_arg_gcc_pipe="N", ac_arg_gcc_pipe="Y")
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AC_ARG_ENABLE(gcc-opt,
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AC_HELP_STRING([--disable-gcc-opt], [disable gcc optimisations ]),
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ac_arg_gcc_opt="N", ac_arg_gcc_opt="Y")
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AC_ARG_ENABLE(fftw,
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AC_HELP_STRING([--disable-fftw], [disable usage of FFTW ]),
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ac_arg_fftw="N", ac_arg_fftw="Y")
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AC_ARG_ENABLE(cpu-clip,
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AC_HELP_STRING([--disable-cpu-clip], [disable tricky cpu specific clipper]),
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ac_arg_cpu_clip="N", ac_arg_cpu_clip="Y")
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#====================================================================================
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# Check types and their sizes.
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AC_CHECK_SIZEOF(int,0)
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AC_CHECK_SIZEOF(long,0)
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AC_CHECK_SIZEOF(float,4)
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AC_CHECK_SIZEOF(double,8)
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#====================================================================================
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# Determine endian-ness of target processor.
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AC_C_FIND_ENDIAN
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AC_DEFINE_UNQUOTED(CPU_IS_BIG_ENDIAN, ${ac_cv_c_big_endian},
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[Target processor is big endian.])
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AC_DEFINE_UNQUOTED(CPU_IS_LITTLE_ENDIAN, ${ac_cv_c_little_endian},
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[Target processor is little endian.])
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#====================================================================================
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# Check for functions.
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AC_CHECK_FUNCS(malloc calloc free memcpy memmove alarm signal)
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AC_CHECK_LIB([m],floor)
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AC_CHECK_FUNCS(floor ceil fmod)
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AC_CHECK_SIGNAL(SIGALRM)
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AC_C99_FUNC_LRINT
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AC_C99_FUNC_LRINTF
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# AC_C99_FUNC_LLRINT Don't need this (yet?).
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case "x$ac_cv_c99_lrint$ac_cv_c99_lrintf" in
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xyesyes)
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;;
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*)
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AC_MSG_WARN([[*** Missing C99 standard functions lrint() and lrintf().]])
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AC_MSG_WARN([[*** This may cause benign compiler warnings on some systems (ie Solaris).]])
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;;
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esac
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#====================================================================================
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# Determine if the processor can do clipping on float to int conversions.
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if test x$ac_arg_cpu_clip = "xY" ; then
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AC_C_CLIP_MODE
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else
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echo "checking processor clipping capabilities... disabled"
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ac_cv_c_clip_positive=0
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ac_cv_c_clip_negative=0
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fi
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AC_DEFINE_UNQUOTED(CPU_CLIPS_POSITIVE, ${ac_cv_c_clip_positive},
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[Target processor clips on positive float to int conversion.])
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AC_DEFINE_UNQUOTED(CPU_CLIPS_NEGATIVE, ${ac_cv_c_clip_negative},
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[Target processor clips on negative float to int conversion.])
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#====================================================================================
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# Check for libsndfile which is required for the test and example programs.
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AC_ARG_ENABLE(sndfile,
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AC_HELP_STRING([--disable-sndfile], [disable support for sndfile (default=autodetect)]),
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[ enable_sndfile=$enableval ], [ enable_sndfile=yes ])
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# Check for pkg-config outside the if statement.
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PKG_PROG_PKG_CONFIG
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if test "x$enable_sndfile" = "xyes"; then
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PKG_CHECK_MODULES(SNDFILE, sndfile >= 1.0.6, ac_cv_sndfile=1, ac_cv_sndfile=0)
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else
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ac_cv_sndfile=0
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fi
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AC_DEFINE_UNQUOTED([HAVE_SNDFILE],$ac_cv_sndfile,[Set to 1 if you have libsndfile.])
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if test x$ac_cv_sndfile = x1 ; then
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ac_cv_sndfile=yes
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HAVE_SNDFILE=1
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else
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ac_cv_sndfile=no
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HAVE_SNDFILE=0
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fi
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#====================================================================================
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# Check for libfftw3 which is required for the test and example programs.
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if test $ac_arg_fftw = "Y" ; then
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PKG_CHECK_MODULES(FFTW3, fftw3 >= 0.15.0, ac_cv_fftw3=1, ac_cv_fftw3=0)
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AC_DEFINE_UNQUOTED([HAVE_FFTW3],$ac_cv_fftw3,[Set to 1 if you have libfftw3.])
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if test x$ac_cv_fftw3 = x1 ; then
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ac_cv_fftw3=yes
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HAVE_FFTW3=1
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fi
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fi
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if test x$ac_cv_fftw3 != xyes ; then
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ac_cv_fftw3=no
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HAVE_FFTW3=0
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fi
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#====================================================================================
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# GCC stuff.
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if test $ac_cv_c_compiler_gnu = yes ; then
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CFLAGS="$CFLAGS -std=gnu99 -W -Wstrict-prototypes -Wmissing-prototypes -Wall -Waggregate-return -Wcast-align -Wcast-qual -Wnested-externs -Wshadow -Wpointer-arith"
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# -Wundef -Wbad-function-cast -Wmissing-declarations -Wconversion -Winline"
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if test "$ac_arg_gcc_opt" = "N" ; then
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temp_CFLAGS=`echo $CFLAGS | sed "s/O2/O0/"`
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CFLAGS=$temp_CFLAGS
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AC_MSG_WARN([[*** Compiler optimisations switched off. ***]])
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fi
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# Disable -Wall for Apple Darwin/Rhapsody.
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# System headers on these systems are broken.
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case "$target_os" in
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darwin* | rhapsody*)
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temp_CFLAGS=`echo $CFLAGS | sed "s/-Wall//"`
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CFLAGS=$temp_CFLAGS
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;;
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linux*)
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SHLIB_VERSION_ARG="-Wl,--version-script=Version_script"
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;;
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*)
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;;
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esac
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if test x$ac_arg_gcc_pipe != "xN" ; then
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CFLAGS="$CFLAGS -pipe"
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fi
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if test x$ac_arg_gcc_werror = "xyes" ; then
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CFLAGS="-Werror $CFLAGS"
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fi
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AC_DEFINE([COMPILER_IS_GCC],1, [Set to 1 if the compile is GNU GCC.])
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GCC_MAJOR_VERSION=`$CC -dumpversion | sed "s/\..*//"`
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AC_DEFINE_UNQUOTED([GCC_MAJOR_VERSION],${GCC_MAJOR_VERSION}, [Major version of GCC or 3 otherwise.])
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fi
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#====================================================================================
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# Find known target OS.
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OS_SPECIFIC_INCLUDES=""
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os_is_win32=0
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case "$target_os" in
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darwin* | rhapsody*)
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OS_SPECIFIC_INCLUDES="-fpascal-strings -I/Developer/Headers/FlatCarbon"
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OS_SPECIFIC_LINKS="-framework CoreAudio"
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;;
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mingw32*)
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OS_SPECIFIC_LINKS="-lwinmm"
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os_is_win32=1
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;;
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*)
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OS_SPECIFIC_INCLUDES=""
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OS_SPECIFIC_LINKS=""
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;;
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esac
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#====================================================================================
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# Now use the information from the checking stage.
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AC_DEFINE_UNQUOTED(OS_IS_WIN32, ${os_is_win32}, [Set to 1 if compiling for Win32])
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AC_SUBST(SHLIB_VERSION_ARG)
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AC_SUBST(SHARED_VERSION_INFO)
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AC_SUBST(OS_SPECIFIC_INCLUDES)
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AC_SUBST(OS_SPECIFIC_LINKS)
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AC_SUBST(COMPILER_IS_GCC)
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AC_SUBST(GCC_MAJOR_VERSION)
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AC_SUBST(HAVE_FFTW3)
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AC_SUBST(FFTW3_CFLAGS)
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AC_SUBST(FFTW3_LIBS)
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AC_SUBST(HAVE_SNDFILE)
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AC_SUBST(SNDFILE_CFLAGS)
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AC_SUBST(SNDFILE_LIBS)
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AC_CONFIG_FILES([Makefile src/Version_script Win32/Makefile Win32/Makefile.mingw \
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src/Makefile examples/Makefile tests/Makefile doc/Makefile \
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libsamplerate.spec samplerate.pc])
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AC_OUTPUT
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#====================================================================================
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AC_MSG_RESULT([
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-=-=-=-=-=-=-=-=-=-= Configuration Complete =-=-=-=-=-=-=-=-=-=-=-
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Configuration summary :
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Version : ..................... ${VERSION}
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])
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if test x$ac_cv_c_compiler_gnu = xyes ; then
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echo -e " Tools :\n"
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echo " Compiler is GCC : ............. ${ac_cv_c_compiler_gnu}"
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echo " GCC major version : ........... ${GCC_MAJOR_VERSION}"
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fi
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AC_MSG_RESULT([
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Extra tools required for testing and examples :
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Use FFTW : .................... ${ac_cv_fftw3}])
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AC_MSG_RESULT([ Have libsndfile : ............. ${ac_cv_sndfile}
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])
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AC_MSG_RESULT([ Installation directories :
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Library directory : ........... ${prefix}/lib
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Program directory : ........... ${prefix}/bin
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Pkgconfig directory : ......... ${prefix}/lib/pkgconfig
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])
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if test x$prefix != "x/usr" ; then
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echo "Compiling some other packages against ${PACKAGE} may require "
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echo -e "the addition of \"${prefix}/lib/pkgconfig\" to the "
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echo -e "PKG_CONFIG_PATH environment variable.\n"
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fi
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