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