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Re: Win32 cross-compiler for OSX?
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Re: Win32 cross-compiler for OSX?

  • Subject: Re: Win32 cross-compiler for OSX?
  • From: Mitch Murphy <email@hidden>
  • Date: Fri, 6 Jan 2006 15:47:47 -0500
I would like to make Win32 executables from my PowerBook running Panther (Tiger eventually). I know I can do this from a Debian box using GNU gcc, but I was wondering if I can do it using Apple's gcc?

here the script that worked for me, slightly modified from what i found at http://www.mingw.org/MinGWiki/index.php/BuildMingwCross.

see http://sources.redhat.com/ml/crossgcc/2006-01/msg00005.html for how it did for darwin->linux cross-compiler using crosstool (http:// kegel.com/crosstool/crosstool-0.38/doc/crosstool-howto.html).

cheers,
Mitch

---------

#! /bin/bash

# This is my script for building a complete MinGW cross-compiler toolchain
# that runs under Linux to produce executables that run under Windows. It
# probably works (or can easily be adapted to work) under any unix system.
#
# It is based in large part on Sam Lantinga's script, which in turn was
# based partly on Ray Kelm's script, which in turn was built on
# Mo Dejong's script for doing the same, but with some added fixes.
#
# My changes:
# 1. Adapted the script to the new packaging of MinGW GCC, which is
# currently split into core and auxiliary components.
# 2. The script now determines the GCC and BINUTILS directory name
# directly from the tar file contents. This gets around common
# problems due to the directory names not always following the
# expected patterns.
# 3. Grouped together and simplified the macros that users need to
# define.
# 4. Made optional components truly optional -- leave the
# corresponding archive names blank and they will be ignored.
# 5. Included an option to purge the installation directory before
# installing the current cross-compiler.
#
# NOTE: If you choose a destination directory for the installation (set
# in the macro PREFIX) for which you do not have write access, you will
# need to run this script with root (or equivalent) privileges.
#
#
# Updated by Igor Mikolic-Torreira <email@hidden>
#
# Additional changes by MitchMurphy 2005/12/29
#
# 2.1) binutils-2.16.91-20050827-1-src.tar.gz as per JoelDice
# 2.2) MAKEFLAGS for parallel make
# 2.3) built under Mac OS X 10.4
#


#-----------------------------------------------------
#
# BEGIN USER SETTINGS
#
# You need to review and adjust the macros that follow
#
#-----------------------------------------------------

# What are your make flags? (ie. -j 8 for a parallel build)

MAKEFLAGS='-j 1'

# What flavor of GCC cross-compiler are we building?

TARGET=mingw32

# What directory will the cross-compiler be built in?
# This is the directory into which source archives will
# be downloaded, expanded, compiled, etc.  You need to
# have write-access to this directory.  If you leave it
# blank, it defaults to the current directory.

BUILDDIR=

# Where does the cross-compiler go?
# This should be the directory into which your cross-compiler
# will be installed.  Remember that if you set this to a directory
# that only root has write access to, you will need to run this
# script as root.

PREFIX=/Developer/SDKs/gcc-4.0.2-mingw.sdk

# Purge anything and everything already in the $PREFIX
#(also known as the destination or installation) directory?
# Set to "Y" to purge, any other value omits the purge step.

PURGE_DIR="Y"


# Set the following to the files from the current MinGW release
# (or whichever MinGW release you wish to build and install)
# You need to set both the URL they will be downloaded from
# and the exact name of the individual component files.

MINGW_URL="http://heanet.dl.sourceforge.net/sourceforge/mingw";

GCC_URL="http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-4.0.2";

# GCC_CORE is required; the other components are optional.
# Set any you don't want to "".  You need binutils,
# mingw runtime and w32api; do not ever set those to "".

GCC_CORE_ARCHIVE="gcc-core-4.0.2.tar.gz"
# GCC_GPP_ARCHIVE="gcc-g++-4.0.2.tar.gz"
GCC_OBJC_ARCHIVE="gcc-objc-4.0.2.tar.gz"

# GCC_G77_ARCHIVE="gcc-g77-3.4.2-20040916-1-src.tar.gz"
# GCC_OBJC_ARCHIVE="gcc-objc-3.4.2-20040916-1-src.tar.gz"
# GCC_JAVA_ARCHIVE="gcc-java-3.4.2-20040916-1-src.tar.gz"
GCC_ADA_ARCHIVE=""
GCC_PATCH=""


# "The specified version of binutils did not build for me (on neither
# Debian amd64 nor i386), whereas binutils-2.16.91-20050827-1-src.tar.gz
# built fine on both. "
#
# - JoelDice
#
# BINUTILS_ARCHIVE="binutils-2.15.91-20040904-1-src.tar.gz"

BINUTILS_ARCHIVE="binutils-2.16.91-20050827-1-src.tar.gz"

MINGW_ARCHIVE="mingw-runtime-3.9.tar.gz"

W32API_ARCHIVE="w32api-3.5.tar.gz"


#-----------------------------------------------------
#
# END USER SETTINGS
#
# The remainder of the script should not neet any edits
#
#-----------------------------------------------------



# Make sure these are initialized as we want them

GCC_CORE=""
BINUTILS=""
GCC_LANGS="c"


# Set our build directory and where our sources will go

if [ "x$BUILDDIR" = "x" ]; then
        # Default to the current directory
        BUILDDIR=$(pwd)
fi
SRCDIR="$BUILDDIR/source"


# Need install directory first on the path so gcc can find binutils

PATH="$PREFIX/bin:$PATH"



#-----------------------------------------------------
#
# Functions that do most of the work
#
#-----------------------------------------------------


function download_files
{
        # Download a file from a given url, only if it is not present
        mkdir -p "$SRCDIR"

        # Make sure wget is installed
        if test "x`which wget`" = "x" ; then
                echo "You need to install wget."
                exit 1
        fi

        download_file "$GCC_CORE_ARCHIVE" "$GCC_URL"

        if [ "x$GCC_GPP_ARCHIVE" != "x" ]; then
                download_file "$GCC_GPP_ARCHIVE" "$GCC_URL"
        fi
        if [ "x$GCC_G77_ARCHIVE" != "x" ]; then
                download_file "$GCC_G77_ARCHIVE" "$GCC_URL"
        fi
        if [ "x$GCC_OBJC_ARCHIVE" != "x" ]; then
                download_file "$GCC_OBJC_ARCHIVE" "$GCC_URL"
        fi
        if [ "x$GCC_JAVA_ARCHIVE" != "x" ]; then
                download_file "$GCC_JAVA_ARCHIVE" "$GCC_URL"
        fi
        if [ "x$GCC_ADA_ARCHIVE" != "x" ]; then
                download_file "$GCC_ADA_ARCHIVE" "$GCC_URL"
        fi

        download_file "$BINUTILS_ARCHIVE" "$MINGW_URL"
        download_file "$MINGW_ARCHIVE" "$MINGW_URL"
        download_file "$W32API_ARCHIVE" "$MINGW_URL"

}


function download_file
{
        cd "$SRCDIR"
        if test ! -f $1 ; then
                echo "Downloading $1"
                wget "$2/$1"
                if test ! -f $1 ; then
                        echo "Could not download $1"
                        exit 1
                fi
        else
                echo "Found $1 in the srcdir $SRCDIR"
        fi
        cd "$BUILDDIR"
}


function purge_existing_install
{
        echo "Purging the existing files in $PREFIX"
        if cd "$PREFIX"; then
                rm -rf *
        fi
        cd "$BUILDDIR"
}


function install_libs
{
        echo "Installing cross libs and includes"

        mkdir -p "$PREFIX/$TARGET"
        cd "$PREFIX"
				ln -s "$TARGET" usr

        cd "$PREFIX/$TARGET"
        tar -xzf "$SRCDIR/$MINGW_ARCHIVE"
        tar -xzf "$SRCDIR/$W32API_ARCHIVE"

        cd "$BUILDDIR"
}


function extract_binutils
{
        cd "$SRCDIR"
        BINUTILS=`tar -tzf "$SRCDIR/$BINUTILS_ARCHIVE" | head -n 1`
        rm -rf "$BINUTILS"
        echo "Extracting binutils"
        tar -xzf "$SRCDIR/$BINUTILS_ARCHIVE"
        cd "$BUILDDIR"
}


function configure_binutils
{
cd "$BUILDDIR"
rm -rf "binutils-$TARGET"
mkdir "binutils-$TARGET"
cd "binutils-$TARGET"
echo "Configuring binutils"
"$SRCDIR/$BINUTILS/configure" --prefix="$PREFIX" -- target="$TARGET" --disable-nls \
--with-gcc --with-gnu-as --with-gnu-ld &> configure.log

#--with-gcc --with-gnu-as --with-gnu-ld --disable- shared &> configure.log

        cd "$BUILDDIR"
}


function build_binutils
{
cd "$BUILDDIR/binutils-$TARGET"
echo "Building binutils"
make $MAKEFLAGS CFLAGS="-O2 -fno-exceptions" LDFLAGS="-s" &> make.log
if test $? -ne 0; then
echo "make of binutils failed - log available: binutils-$TARGET/make.log"
exit 1
fi
cd "$BUILDDIR"
}


function install_binutils
{
cd "$BUILDDIR/binutils-$TARGET"
echo "Installing binutils"
make $MAKEFLAGS install &> make-install.log
if test $? -ne 0; then
echo "install of binutils failed - log available: binutils-$TARGET/make-install.log"
exit 1
fi
cd "$BUILDDIR"
}


function extract_gcc
{
        cd "$SRCDIR"
        GCC=`tar -tzf "$SRCDIR/$GCC_CORE_ARCHIVE" | head -n 1`
        rm -rf "$GCC"
        echo "Extracting gcc"
        tar -xzf "$SRCDIR/$GCC_CORE_ARCHIVE"
        if [ "x$GCC_GPP_ARCHIVE" != "x" ]; then
                GCC_LANGS=${GCC_LANGS}",c++"
                tar -xzf "$SRCDIR/$GCC_GPP_ARCHIVE"
        fi
        if [ "x$GCC_G77_ARCHIVE" != "x" ]; then
                GCC_LANGS=${GCC_LANGS}",f77"
                tar -xzf "$SRCDIR/$GCC_G77_ARCHIVE"
        fi
        if [ "x$GCC_OBJC_ARCHIVE" != "x" ]; then
                GCC_LANGS=${GCC_LANGS}",objc"
                tar -xzf "$SRCDIR/$GCC_OBJC_ARCHIVE"
        fi
        if [ "x$GCC_JAVA_ARCHIVE" != "x" ]; then
                GCC_LANGS=${GCC_LANGS}",java"
                tar -xzf "$SRCDIR/$GCC_JAVA_ARCHIVE"
        fi
        if [ "x$GCC_ADA_ARCHIVE" != "x" ]; then
                GCC_LANGS=${GCC_LANGS}",ada"
                tar -xzf "$SRCDIR/$GCC_ADA_ARCHIVE"
        fi
        cd "$BUILDDIR"
}


function patch_gcc
{
        if [ "$GCC_PATCH" != "" ]; then
                echo "Patching gcc"
                cd "$SRCDIR/$GCC"
                patch -p1 < "$SRCDIR/$GCC_PATCH"
                cd "$BUILDDIR"
        fi
}


function configure_gcc
{
cd "$BUILDDIR"
rm -rf "gcc-$TARGET"
mkdir "gcc-$TARGET"
cd "gcc-$TARGET"
echo "Configuring gcc"
"$SRCDIR/$GCC/configure" -v \
--prefix="$PREFIX" --target="$TARGET" \
--with-headers="$PREFIX/$TARGET/include" \
--with-gcc --with-gnu-ld --with-gnu-as \
--enable-threads --disable-nls --enable-languages= $GCC_LANGS \
--disable-win32-registry --enable-sjlj-exceptions -- enable-libgcj \
--disable-java-awt --without-x --enable-java- gc=boehm --disable-libgcj-debug \
--enable-interpreter --enable-hash-synchronization -- enable-libstdcxx-debug \
&> configure.log

                # --disable-shared \

        cd "$BUILDDIR"
}


function build_gcc
{
cd "$BUILDDIR/gcc-$TARGET"
echo "Building gcc"
make $MAKEFLAGS CFLAGS="-O2" CXXFLAGS="-O2" GCJFLAGS="-O2" LDFLAGS="-s" DEBUG_FLAGS="-g0" &> make.log
if test $? -ne 0; then
echo "make of gcc failed - log available: gcc- $TARGET/make.log"
exit 1
fi
if [ "x$GCC_ADA" != "x" ]; then
cd gcc
make $MAKEFLAGS "CFLAGS=-O2" "LDFLAGS=-s" gnatlib_and_tools &> make-gnatlib.log
if test $? -ne 0; then
echo "make of gnatlib and tools failed - log available: gcc-$TARGET/make-gnatlib.log"
exit 1
fi
fi
cd "$BUILDDIR"
}


function install_gcc
{
cd "$BUILDDIR/gcc-$TARGET"
echo "Installing gcc"
make $MAKEFLAGS install &> make-install.log
if test $? -ne 0; then
echo "install of gcc failed - log available: gcc- $TARGET/make-install.log"
exit 1
fi
cd "$BUILDDIR"
}


function final_tweaks
{
        echo "Finalizing installation"

        # remove gcc build headers
        rm -rf "$PREFIX/$TARGET/sys-include"

# Add extra binary links
if [ ! -f "$PREFIX/$TARGET/bin/objdump" ]; then
ln "$PREFIX/bin/$TARGET-objdump" "$PREFIX/$TARGET/ bin/objdump"
fi

        # make cc and c++ symlinks to gcc and g++
#        if [ ! -f "$PREFIX/$TARGET/bin/g++" ]; then
#                ln "$PREFIX/bin/$TARGET-g++" "$PREFIX/$TARGET/bin/g++"
#        fi
#        if [ ! -f "$PREFIX/$TARGET/bin/cc" ]; then
#                ln -s "gcc" "$PREFIX/$TARGET/bin/cc"
#        fi
#        if [ ! -f "$PREFIX/$TARGET/bin/c++" ]; then
#                ln -s "g++" "$PREFIX/$TARGET/bin/c++"
#        fi

# strip all the binaries
ls "$PREFIX"/bin/* "$PREFIX/$TARGET"/bin/* | egrep -v '.dll $' | egrep -v 'gccbug$' |
while read file; do
strip "$file"
done

        echo "Installation complete!"
}



#
# Main part of the script
#

download_files

if [ "x$PURGE_DIR" = "xY" ]; then
        purge_existing_install
fi

install_libs

extract_binutils
configure_binutils
build_binutils
install_binutils

extract_gcc
patch_gcc
configure_gcc
build_gcc
install_gcc

final_tweaks


#
# End
#


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