cannam@85: dnl -*- m4 -*-
cannam@85: dnl
cannam@85: dnl libmad - MPEG audio decoder library
cannam@85: dnl Copyright (C) 2000-2004 Underbit Technologies, Inc.
cannam@85: dnl
cannam@85: dnl This program is free software; you can redistribute it and/or modify
cannam@85: dnl it under the terms of the GNU General Public License as published by
cannam@85: dnl the Free Software Foundation; either version 2 of the License, or
cannam@85: dnl (at your option) any later version.
cannam@85: dnl
cannam@85: dnl This program is distributed in the hope that it will be useful,
cannam@85: dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
cannam@85: dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
cannam@85: dnl GNU General Public License for more details.
cannam@85: dnl
cannam@85: dnl You should have received a copy of the GNU General Public License
cannam@85: dnl along with this program; if not, write to the Free Software
cannam@85: dnl Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
cannam@85: dnl
cannam@85: AC_REVISION([$Id: configure.ac,v 1.9 2004/01/23 09:41:32 rob Exp $])dnl
cannam@85: 
cannam@85: dnl Process this file with autoconf to produce a configure script.
cannam@85: 
cannam@85: AC_INIT([MPEG Audio Decoder], [0.15.1b], [support@underbit.com], [libmad])
cannam@85: AC_PREREQ(2.53)
cannam@85: 
cannam@85: AC_CONFIG_SRCDIR([decoder.h])
cannam@85: 
cannam@85: AM_INIT_AUTOMAKE
cannam@85: 
cannam@85: AM_CONFIG_HEADER([config.h])
cannam@85: 
cannam@85: dnl System type.
cannam@85: 
cannam@85: AC_CANONICAL_HOST
cannam@85: 
cannam@85: dnl Checks for programs.
cannam@85: 
cannam@85: AC_PROG_CC
cannam@85: AM_PROG_AS
cannam@85: 
cannam@85: if test "$GCC" = yes
cannam@85: then
cannam@85:     case "$host" in
cannam@85: 	*-*-mingw*)
cannam@85: 	    case "$build" in
cannam@85: 		*-*-cygwin*)
cannam@85: 		    CPPFLAGS="$CPPFLAGS -mno-cygwin"
cannam@85: 		    LDFLAGS="$LDFLAGS -mno-cygwin"
cannam@85: 		    ;;
cannam@85: 	    esac
cannam@85:     esac
cannam@85: 
cannam@85: dnl    case "$host" in
cannam@85: dnl	*-*-cygwin* | *-*-mingw*)
cannam@85: dnl	    LDFLAGS="$LDFLAGS -no-undefined -mdll"
cannam@85: dnl	    ;;
cannam@85: dnl    esac
cannam@85: fi
cannam@85: 
cannam@85: dnl Support for libtool.
cannam@85: 
cannam@85: dnl AC_DISABLE_SHARED
cannam@85: dnl AC_LIBTOOL_WIN32_DLL
cannam@85: AC_PROG_LIBTOOL
cannam@85: 
cannam@85: AC_SUBST(LIBTOOL_DEPS)
cannam@85: 
cannam@85: dnl Compiler options.
cannam@85: 
cannam@85: arch=""
cannam@85: debug=""
cannam@85: optimize=""
cannam@85: profile=""
cannam@85: 
cannam@85: set -- $CFLAGS
cannam@85: CFLAGS=""
cannam@85: 
cannam@85: if test "$GCC" = yes
cannam@85: then
cannam@85:     CFLAGS="-Wall"
cannam@85: fi
cannam@85: 
cannam@85: while test $# -gt 0
cannam@85: do
cannam@85:     case "$1" in
cannam@85: 	-Wall)
cannam@85: 	    if test "$GCC" = yes
cannam@85: 	    then
cannam@85: 		:
cannam@85: 	    else
cannam@85: 		CFLAGS="$CFLAGS $1"
cannam@85: 	    fi
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	-g)
cannam@85: 	    debug="-g"
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	-mno-cygwin)
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	-m*)
cannam@85: 	    arch="$arch $1"
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	-O2)
cannam@85: 	    optimize="-O"
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	-fomit-frame-pointer)
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	-O*|-f*)
cannam@85: 	    optimize="$optimize $1"
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85: 	*)
cannam@85: 	    CFLAGS="$CFLAGS $1"
cannam@85: 	    shift
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: done
cannam@85: 
cannam@85: if test "$GCC" = yes
cannam@85: then
cannam@85:     if test -z "$arch"
cannam@85:     then
cannam@85: 	case "$host" in
cannam@85: 	    i386-*)           ;;
cannam@85: 	    i?86-*)           arch="-march=i486" ;;
cannam@85: 	    arm*-empeg-*)     arch="-march=armv4 -mtune=strongarm1100" ;;
cannam@85: 	    armv4*-*)         arch="-march=armv4 -mtune=strongarm" ;;
cannam@85: 	    powerpc-*)        ;;
cannam@85: 	    mips*-agenda-*)   arch="-mcpu=vr4100" ;;
cannam@85: 	    mips*-luxsonor-*) arch="-mips1 -mcpu=r3000 -Wa,-m4010" ;;
cannam@85: 	esac
cannam@85:     fi
cannam@85: 
cannam@85:     case "$optimize" in
cannam@85: 	-O|"-O "*)
cannam@85: 	    optimize="-O"
cannam@85: 	    optimize="$optimize -fforce-mem"
cannam@85: 	    optimize="$optimize -fforce-addr"
cannam@85: 	    : #x optimize="$optimize -finline-functions"
cannam@85: 	    : #- optimize="$optimize -fstrength-reduce"
cannam@85: 	    optimize="$optimize -fthread-jumps"
cannam@85: 	    optimize="$optimize -fcse-follow-jumps"
cannam@85: 	    optimize="$optimize -fcse-skip-blocks"
cannam@85: 	    : #x optimize="$optimize -frerun-cse-after-loop"
cannam@85: 	    : #x optimize="$optimize -frerun-loop-opt"
cannam@85: 	    : #x optimize="$optimize -fgcse"
cannam@85: 	    optimize="$optimize -fexpensive-optimizations"
cannam@85: 	    optimize="$optimize -fregmove"
cannam@85: 	    : #* optimize="$optimize -fdelayed-branch"
cannam@85: 	    : #x optimize="$optimize -fschedule-insns"
cannam@85: 	    optimize="$optimize -fschedule-insns2"
cannam@85: 	    : #? optimize="$optimize -ffunction-sections"
cannam@85: 	    : #? optimize="$optimize -fcaller-saves"
cannam@85: 	    : #> optimize="$optimize -funroll-loops"
cannam@85: 	    : #> optimize="$optimize -funroll-all-loops"
cannam@85: 	    : #x optimize="$optimize -fmove-all-movables"
cannam@85: 	    : #x optimize="$optimize -freduce-all-givs"
cannam@85: 	    : #? optimize="$optimize -fstrict-aliasing"
cannam@85: 	    : #* optimize="$optimize -fstructure-noalias"
cannam@85: 
cannam@85: 	    case "$host" in
cannam@85: 		arm*-*)
cannam@85: 		    optimize="$optimize -fstrength-reduce"
cannam@85: 		    ;;
cannam@85: 		mips*-*)
cannam@85: 		    optimize="$optimize -fstrength-reduce"
cannam@85: 		    optimize="$optimize -finline-functions"
cannam@85: 		    ;;
cannam@85: 		i?86-*)
cannam@85: 		    optimize="$optimize -fstrength-reduce"
cannam@85: 		    ;;
cannam@85: 		powerpc-apple-*)
cannam@85: 		    # this triggers an internal compiler error with gcc2
cannam@85: 		    : #optimize="$optimize -fstrength-reduce"
cannam@85: 
cannam@85: 		    # this is really only beneficial with gcc3
cannam@85: 		    : #optimize="$optimize -finline-functions"
cannam@85: 		    ;;
cannam@85: 		*)
cannam@85: 		    # this sometimes provokes bugs in gcc 2.95.2
cannam@85: 		    : #optimize="$optimize -fstrength-reduce"
cannam@85: 		    ;;
cannam@85: 	    esac
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: fi
cannam@85: 
cannam@85: case "$host" in
cannam@85:     mips*-agenda-*)
cannam@85: 	AC_DEFINE(HAVE_MADD16_ASM, 1,
cannam@85: 	    [Define if your MIPS CPU supports a 2-operand MADD16 instruction.])
cannam@85: 	;;
cannam@85:     mips*-luxsonor-*)
cannam@85: 	AC_DEFINE(HAVE_MADD_ASM, 1,
cannam@85: 	    [Define if your MIPS CPU supports a 2-operand MADD instruction.])
cannam@85: 	;;
cannam@85: esac
cannam@85: 
cannam@85: dnl Checks for header files.
cannam@85: 
cannam@85: AC_HEADER_STDC
cannam@85: AC_HEADER_SYS_WAIT
cannam@85: AC_CHECK_HEADERS(assert.h limits.h unistd.h sys/types.h fcntl.h errno.h)
cannam@85: 
cannam@85: dnl Checks for typedefs, structures, and compiler characteristics.
cannam@85: 
cannam@85: AC_C_CONST
cannam@85: AC_C_INLINE
cannam@85: AC_C_BIGENDIAN
cannam@85: AC_TYPE_PID_T
cannam@85: 
cannam@85: AC_CHECK_SIZEOF(int, 2)
cannam@85: AC_CHECK_SIZEOF(long, 4)
cannam@85: AC_CHECK_SIZEOF(long long, 8)
cannam@85: 
cannam@85: dnl Checks for library functions.
cannam@85: 
cannam@85: AC_CHECK_FUNCS(waitpid fcntl pipe fork)
cannam@85: 
cannam@85: dnl Other options.
cannam@85: 
cannam@85: AC_SUBST(FPM)
cannam@85: AC_SUBST(ASO)
cannam@85: AC_SUBST(ASO_OBJS)
cannam@85: 
cannam@85: dnl handle --enable and --disable options
cannam@85: 
cannam@85: AC_CACHE_SAVE
cannam@85: 
cannam@85: AC_MSG_CHECKING(whether to optimize for speed or for accuracy)
cannam@85: 
cannam@85: AC_ARG_ENABLE(speed, AC_HELP_STRING([--enable-speed],
cannam@85: 		     [optimize for speed over accuracy]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)
cannam@85: 	    optimize_for="speed"
cannam@85: 	    AC_DEFINE(OPT_SPEED, 1,
cannam@85: 		[Define to optimize for speed over accuracy.])
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: 
cannam@85: AC_ARG_ENABLE(accuracy, AC_HELP_STRING([--enable-accuracy],
cannam@85: 			[optimize for accuracy over speed]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)
cannam@85: 	    if test "$optimize_for" = "speed"
cannam@85: 	    then
cannam@85: 		optimize_for="both"
cannam@85: 	    else
cannam@85: 		optimize_for="accuracy"
cannam@85: 	    fi
cannam@85: 	    AC_DEFINE(OPT_ACCURACY, 1,
cannam@85: 		[Define to optimize for accuracy over speed.])
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: 
cannam@85: AC_MSG_RESULT(${optimize_for-default})
cannam@85: 
cannam@85: if test "$optimize_for" = "both"
cannam@85: then
cannam@85:     AC_MSG_ERROR(cannot optimize for both speed and accuracy)
cannam@85: fi
cannam@85: 
cannam@85: AC_MSG_CHECKING(for architecture-specific fixed-point math routines)
cannam@85: AC_ARG_ENABLE(fpm, AC_HELP_STRING([--enable-fpm=ARCH],
cannam@85: 		   [use ARCH-specific fixed-point math routines
cannam@85: 		    (one of: intel, arm, mips, sparc, ppc, 64bit, default)]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)                             ;;
cannam@85: 	no|default|approx) FPM="DEFAULT" ;;
cannam@85: 	intel|i?86)        FPM="INTEL"   ;;
cannam@85: 	arm)               FPM="ARM"     ;;
cannam@85: 	mips)              FPM="MIPS"    ;;
cannam@85: 	sparc)             FPM="SPARC"   ;;
cannam@85: 	ppc|powerpc)       FPM="PPC"     ;;
cannam@85: 	64bit)             FPM="64BIT"   ;;
cannam@85: 	float)             FPM="FLOAT"   ;;
cannam@85: 	*)
cannam@85: 	    AC_MSG_RESULT(failed)
cannam@85: 	    AC_MSG_ERROR([bad --enable-fpm option])
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: 
cannam@85: if test -z "$FPM" && test "$GCC" = yes
cannam@85: then
cannam@85:     case "$host" in
cannam@85: 	i?86-*)     FPM="INTEL"  ;;
cannam@85: 	arm*-*)     FPM="ARM"    ;;
cannam@85: 	mips*-*)    FPM="MIPS"   ;;
cannam@85: 	sparc*-*)   FPM="SPARC"  ;;
cannam@85: 	powerpc*-*) FPM="PPC"    ;;
cannam@85: 	# FIXME: need to test for 64-bit long long...
cannam@85:     esac
cannam@85: fi
cannam@85: 
cannam@85: AC_MSG_RESULT(${FPM=DEFAULT})
cannam@85: 
cannam@85: if test "$FPM" = "DEFAULT"
cannam@85: then
cannam@85:     AC_MSG_WARN([default fixed-point math will yield limited accuracy])
cannam@85: fi
cannam@85: 
cannam@85: FPM="-DFPM_$FPM"
cannam@85: 
cannam@85: AC_ARG_ENABLE(sso, AC_HELP_STRING([--enable-sso],
cannam@85: 		   [use subband synthesis optimization]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)
cannam@85: 	    AC_DEFINE(OPT_SSO, 1,
cannam@85:     [Define to enable a fast subband synthesis approximation optimization.])
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: 
cannam@85: AC_ARG_ENABLE(aso, AC_HELP_STRING([--disable-aso],
cannam@85: 		   [disable architecture-specific optimizations]),
cannam@85:     [], [enable_aso=yes])
cannam@85: 
cannam@85: if test "$enable_aso" = yes
cannam@85: then
cannam@85:     case "$host" in
cannam@85: 	i?86-*)
cannam@85: 	    : #ASO="$ASO -DASO_INTERLEAVE1"
cannam@85: 	    ASO="$ASO -DASO_ZEROCHECK"
cannam@85: 	    : #not yet #ASO="$ASO -DASO_SYNTH"
cannam@85: 	    : #not yet #ASO_OBJS="synth_mmx.lo"
cannam@85: 	    ;;
cannam@85: 	arm*-*)
cannam@85: 	    ASO="$ASO -DASO_INTERLEAVE1"
cannam@85: 	    ASO="$ASO -DASO_IMDCT"
cannam@85: 	    ASO_OBJS="imdct_l_arm.lo"
cannam@85: 	    ;;
cannam@85: 	mips*-*)
cannam@85: 	    ASO="$ASO -DASO_INTERLEAVE2"
cannam@85: 	    ASO="$ASO -DASO_ZEROCHECK"
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: fi
cannam@85: 
cannam@85: AC_MSG_CHECKING(for ISO/IEC interpretation)
cannam@85: AC_ARG_ENABLE(strict-iso, AC_HELP_STRING([--enable-strict-iso],
cannam@85: 			  [use strict ISO/IEC interpretations]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)
cannam@85: 	    AC_DEFINE(OPT_STRICT, 1,
cannam@85:     [Define to influence a strict interpretation of the ISO/IEC standards,
cannam@85:      even if this is in opposition with best accepted practices.])
cannam@85: 	    interpretation="strict"
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: AC_MSG_RESULT(${interpretation-best accepted practices})
cannam@85: 
cannam@85: AC_MSG_CHECKING(whether to enable profiling)
cannam@85: AC_ARG_ENABLE(profiling, AC_HELP_STRING([--enable-profiling],
cannam@85: 			 [generate profiling code]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes) profile="-pg" ;;
cannam@85:     esac
cannam@85: ])
cannam@85: AC_MSG_RESULT(${enable_profiling-no})
cannam@85: 
cannam@85: AC_MSG_CHECKING(whether to enable debugging)
cannam@85: AC_ARG_ENABLE(debugging, AC_HELP_STRING([--enable-debugging],
cannam@85: 			 [enable diagnostic debugging support])
cannam@85: AC_HELP_STRING([--disable-debugging],
cannam@85: 	       [do not enable debugging and use more optimization]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)
cannam@85: 	    AC_DEFINE(DEBUG, 1,
cannam@85: 		[Define to enable diagnostic debugging support.])
cannam@85: 	    optimize=""
cannam@85: 	    ;;
cannam@85: 	no)
cannam@85: 	    if test -n "$profile"
cannam@85: 	    then
cannam@85:     AC_MSG_ERROR(--enable-profiling and --disable-debugging are incompatible)
cannam@85: 	    fi
cannam@85: 
cannam@85: 	    AC_DEFINE(NDEBUG, 1,
cannam@85: 		[Define to disable debugging assertions.])
cannam@85: 	    debug=""
cannam@85: 	    if test "$GCC" = yes
cannam@85: 	    then
cannam@85: 		optimize="$optimize -fomit-frame-pointer"
cannam@85: 	    fi
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: AC_MSG_RESULT(${enable_debugging-default})
cannam@85: 
cannam@85: AC_MSG_CHECKING(whether to enable experimental code)
cannam@85: AC_ARG_ENABLE(experimental, AC_HELP_STRING([--enable-experimental],
cannam@85: 			    [enable experimental code]),
cannam@85: [
cannam@85:     case "$enableval" in
cannam@85: 	yes)
cannam@85: 	    AC_DEFINE(EXPERIMENTAL, 1,
cannam@85: 		[Define to enable experimental code.])
cannam@85: 	    ;;
cannam@85:     esac
cannam@85: ])
cannam@85: AC_MSG_RESULT(${enable_experimental-no})
cannam@85: 
cannam@85: dnl Create output files.
cannam@85: 
cannam@85: test -n "$arch"     && CFLAGS="$CFLAGS $arch"
cannam@85: test -n "$debug"    && CFLAGS="$CFLAGS $debug"
cannam@85: test -n "$optimize" && CFLAGS="$CFLAGS $optimize"
cannam@85: test -n "$profile"  && CFLAGS="$CFLAGS $profile" LDFLAGS="$LDFLAGS $profile"
cannam@85: 
cannam@85: dnl LTLIBOBJS=`echo "$LIBOBJS" | sed -e 's/\.o/.lo/g'`
cannam@85: dnl AC_SUBST(LTLIBOBJS)
cannam@85: 
cannam@85: AC_CONFIG_FILES([Makefile msvc++/Makefile  \
cannam@85: 	libmad.list])
cannam@85: AC_OUTPUT