view build-scripts/fatbuild.sh @ 3880:74e828c64315 SDL-1.2

Fixed bug #292 I might be on crack here. It looks like SDL_ConvertMono() in src/audio/SDL_audiocvt.c adds the left and right channels of a stereo stream together, and clamps the new mono channel if it would overflow. Shouldn't it be dividing by 2 to average the two sample points instead of clamping? Otherwise the mono sample point's volume doubles in the conversion. This would also make the conversion faster, as it replaces two branches per sample frame with a bitwise shift. --ryan.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 24 Sep 2006 15:45:37 +0000
parents 50e9cca3fe7b
children 9b7c0ff4977f 9e454eb693a5
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#!/bin/sh
#
# Build a fat binary on Mac OS X, thanks Ryan!

# Number of CPUs (for make -j)
NCPU=`sysctl -n hw.ncpu`
NJOB=$NCPU
#NJOB=`expr $NCPU + 1`

# Generic, cross-platform CFLAGS you always want go here.
CFLAGS="-O3 -g -pipe"

# PowerPC configure flags (10.2 runtime compatibility)
# We dynamically load X11, so using the system X11 headers is fine.
CONFIG_PPC="--build=`uname -p`-apple-darwin --host=powerpc-apple-darwin \
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib"

# PowerPC compiler flags
CC_PPC="gcc-3.3 -arch ppc"
CXX_PPC="g++-3.3 -arch ppc"
CFLAGS_PPC=""
CPPFLAGS_PPC="-DMAC_OS_X_VERSION_MIN_REQUIRED=1020 \
-nostdinc \
-F/Developer/SDKs/MacOSX10.2.8.sdk/System/Library/Frameworks \
-I/Developer/SDKs/MacOSX10.2.8.sdk/usr/include/gcc/darwin/3.3 \
-isystem /Developer/SDKs/MacOSX10.2.8.sdk/usr/include"

# PowerPC linker flags 
LFLAGS_PPC="-arch ppc \
-L/Developer/SDKs/MacOSX10.2.8.sdk/usr/lib/gcc/darwin/3.3 \
-F/Developer/SDKs/MacOSX10.2.8.sdk/System/Library/Frameworks \
-Wl,-syslibroot,/Developer/SDKs/MacOSX10.2.8.sdk"

# Intel configure flags (10.4 runtime compatibility)
# We dynamically load X11, so using the system X11 headers is fine.
CONFIG_X86="--build=`uname -p`-apple-darwin --host=i386-apple-darwin \
--x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib"

# Intel compiler flags
CC_X86="gcc-4.0 -arch i386"
CXX_X86="g++-4.0 -arch i386"
CFLAGS_X86="-mmacosx-version-min=10.4"
CPPFLAGS_X86="-DMAC_OS_X_VERSION_MIN_REQUIRED=1040 \
-nostdinc \
-F/Developer/SDKs/MacOSX10.4u.sdk/System/Library/Frameworks \
-I/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin8/4.0.1/include \
-isystem /Developer/SDKs/MacOSX10.4u.sdk/usr/include"

# Intel linker flags
LFLAGS_X86="-arch i386 -mmacosx-version-min=10.4 \
-L/Developer/SDKs/MacOSX10.4u.sdk/usr/lib/gcc/i686-apple-darwin8/4.0.0 \
-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk"

#
# Find the configure script
#
srcdir=`dirname $0`/..
auxdir=$srcdir/build-scripts
cd $srcdir

#
# Figure out which phase to build:
# all,
# configure, configure-ppc, configure-x86,
# make, make-ppc, make-x86, merge
# install
# clean
if test x"$1" = x; then
    phase=all
else
    phase="$1"
fi
case $phase in
    all)
        configure_ppc="yes"
        configure_x86="yes"
        make_ppc="yes"
        make_x86="yes"
        merge="yes"
        ;;
    configure)
        configure_ppc="yes"
        configure_x86="yes"
        ;;
    configure-ppc)
        configure_ppc="yes"
        ;;
    configure-x86)
        configure_x86="yes"
        ;;
    make)
        make_ppc="yes"
        make_x86="yes"
        merge="yes"
        ;;
    make-ppc)
        make_ppc="yes"
        ;;
    make-x86)
        make_x86="yes"
        ;;
    merge)
        merge="yes"
        ;;
    install)
        install_bin="yes"
        install_hdrs="yes"
        install_lib="yes"
        install_data="yes"
        install_man="yes"
        ;;
    install-bin)
        install_bin="yes"
        ;;
    install-hdrs)
        install_hdrs="yes"
        ;;
    install-lib)
        install_lib="yes"
        ;;
    install-data)
        install_data="yes"
        ;;
    install-man)
        install_man="yes"
        ;;
    clean)
        clean_ppc="yes"
        clean_x86="yes"
        ;;
    clean-ppc)
        clean_ppc="yes"
        ;;
    clean-x86)
        clean_x86="yes"
        ;;
    *)
        echo "Usage: $0 [all|configure[-ppc|-x86]|make[-ppc|-x86]|merge|install|clean]"
        exit 1
        ;;
esac
case `uname -p` in
    powerpc)
        native_path=ppc
        ;;
    *86)
        native_path=x86
        ;;
    *)
        echo "Couldn't figure out native architecture path"
        exit 1
        ;;
esac

#
# Create the build directories
#
for dir in build build/ppc build/x86; do
    if test -d $dir; then
        :
    else
        mkdir $dir || exit 1
    fi
done

#
# Build the PowerPC binary
#
if test x$configure_ppc = xyes; then
    (cd build/ppc && \
     sh ../../configure $CONFIG_PPC CC="$CC_PPC" CXX="$CXX_PPC" CFLAGS="$CFLAGS $CFLAGS_PPC" CPPFLAGS="$CPPFLAGS_PPC" LDFLAGS="$LFLAGS_PPC") || exit 2
fi
if test x$make_ppc = xyes; then
    (cd build/ppc && ls include && make -j$NJOB) || exit 3
fi

#
# Build the Intel binary
#
if test x$configure_x86 = xyes; then
    (cd build/x86 && \
     sh ../../configure $CONFIG_X86 CC="$CC_X86" CXX="$CXX_X86" CFLAGS="$CFLAGS $CFLAGS_X86" CPPFLAGS="$CPPFLAGS_X86" LDFLAGS="$LFLAGS_X86") || exit 2
fi
if test x$make_x86 = xyes; then
    (cd build/x86 && make -j$NJOB) || exit 3
fi

#
# Combine into fat binary
#
if test x$merge = xyes; then
    output=.libs
    sh $auxdir/mkinstalldirs build/$output
    cd build
    target=`find . -mindepth 3 -type f -name '*.dylib' | head -1 | sed 's|.*/||'`
    (lipo -create -o $output/$target `find . -mindepth 3 -type f -name "*.dylib"` &&
     ln -sf $target $output/libSDL-1.2.0.dylib &&
     ln -sf $target $output/libSDL.dylib &&
     lipo -create -o $output/libSDL.a */build/.libs/libSDL.a &&
     cp $native_path/build/.libs/libSDL.la $output &&
     cp $native_path/build/.libs/libSDL.lai $output &&
     cp $native_path/build/libSDL.la . &&
     lipo -create -o libSDLmain.a */build/libSDLmain.a &&
     echo "Build complete!" &&
     echo "Files can be found in the build directory.") || exit 4
    cd ..
fi

#
# Install
#
do_install()
{
    echo $*
    $* || exit 5
}
if test x$prefix = x; then
    prefix=/usr/local
fi
if test x$exec_prefix = x; then
    exec_prefix=$prefix
fi
if test x$bindir = x; then
    bindir=$exec_prefix/bin
fi
if test x$libdir = x; then
    libdir=$exec_prefix/lib
fi
if test x$includedir = x; then
    includedir=$prefix/include
fi
if test x$datadir = x; then
    datadir=$prefix/share
fi
if test x$mandir = x; then
    mandir=$prefix/man
fi
if test x$install_bin = xyes; then
    do_install sh $auxdir/mkinstalldirs $bindir
    do_install /usr/bin/install -c -m 755 build/$native_path/sdl-config $bindir/sdl-config
fi
if test x$install_hdrs = xyes; then
    do_install sh $auxdir/mkinstalldirs $includedir/SDL
    for src in $srcdir/include/*.h; do \
        file=`echo $src | sed -e 's|^.*/||'`; \
        do_install /usr/bin/install -c -m 644 $src $includedir/SDL/$file; \
    done
    do_install /usr/bin/install -c -m 644 $srcdir/include/SDL_config_macosx.h $includedir/SDL/SDL_config.h
fi
if test x$install_lib = xyes; then
    do_install sh $auxdir/mkinstalldirs $libdir
    do_install sh build/$native_path/libtool --mode=install /usr/bin/install -c  build/libSDL.la $libdir/libSDL.la
    do_install /usr/bin/install -c -m 644 build/libSDLmain.a $libdir/libSDLmain.a
    do_install ranlib $libdir/libSDLmain.a
fi
if test x$install_data = xyes; then
    do_install sh $auxdir/mkinstalldirs $datadir/aclocal
    do_install /usr/bin/install -c -m 644 $srcdir/sdl.m4 $datadir/aclocal/sdl.m4
fi
if test x$install_man = xyes; then
    do_install sh $auxdir/mkinstalldirs $mandir/man3
    for src in $srcdir/docs/man3/*.3; do \
        file=`echo $src | sed -e 's|^.*/||'`; \
        do_install /usr/bin/install -c -m 644 $src $mandir/man3/$file; \
    done
fi

#
# Clean up
#
do_clean()
{
    echo $*
    $* || exit 6
}
if test x$clean_x86 = xyes; then
    do_clean rm -r build/x86
fi
if test x$clean_ppc = xyes; then
    do_clean rm -r build/ppc
fi