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#!/usr/bin/env bash
# This script builds and installs a gcc cross compiler.
# It has been used to build cross compilers from Linux to Cygwin,
# MinGW, and Solaris. It is unlikely that this script will work
# out-of-the-box. It is only intended as a template. You should read
# through it and understand what it does, and make changes as
# necessary. Feel free to add another targetType if you modify this
# script for another target.
# Notes from Anoq about the mingw target:
# I downloaded the following files from www.mingw.org:
# *) binutils-2.13.90-20030111-1-src.tar.gz which I unpacked to
# binutils-2.13.90-20030111-1-src.tar
# This script unpacks the .tar to binutils-2.13.90-20030111-1-src
# *) gcc-3.2.3-20030504-1-src.tar.gz which I unpacked to
# gcc-3.2.3-20030504-1-src.tar
# This script unpacks the .tar to gcc-3.2.3-20030504-1
# However when running make on gcc it complains about missing files
# stdlib.h and unistd.h
set -e
die () {
echo >&2 "$1"
exit 1
}
root=`pwd`
name=`basename "$0"`
usage () {
die "usage: $name {cygwin|mingw|sun}"
}
case "$#" in
1)
case "$1" in
cygwin|mingw|sun)
targetType="$1"
;;
*)
usage
;;
esac
;;
*)
usage
esac
# You may want to change the installation prefix, which is where the
# script will install the cross-compiler tools.
prefix='/usr'
# You must have have the sources to binutils and gcc, and place the
# tarfiles in the current directory. You can find ftp sites to
# download binutils and gcc-core at gnu.org. You may need to change
# the version numbers below to match what you download.
binutils='binutils-2.12'
gccVers='2.95.3'
gccTar="gcc-core-$gccVers.tar"
# You may want to set the target.
case "$targetType" in
cygwin)
target='i386-pc-cygwin'
configureGCCFlags=''
makeGCCFlags=''
# For Cygwin, we also need the cygwin and w32api packages,
# which contain necessary header files and libraries. I got
# them by installing cygwin in a Windows machine (using #
# Cygwin's setup.exe program) and then getting the bzip'ed tar
# files out of their Cygwin packages dir. I had problems with
# cygwin-1.3.18-1, since its libcygwin.a contained a file,
# pseudo-reloc.o, with some strangeness that binutils didn't
# correctly handle.
cygwin='cygwin-1.3.17-1'
w32api='w32api-2.1-1'
;;
mingw)
target='i386-pc-mingw32'
# target='mingw32'
# These flags are from build-cross.sh from www.libsdl.org except:
# I added --disable-nls because of undefined references to dcgettext__
configureGCCFlags='--with-headers=$prefix/$target/include --with-gnu-as --with-gnu-ld --without-newlib --disable-multilib --disable-nls'
makeGCCFlags='LANGUAGES=c'
# For MinGW, we also need the mingw-runtime and w32api packages,
# which contain necessary header files and libraries. I got
# them from www.mingw.org.
mingw='mingw-runtime-3.2'
w32api='w32api-2.4'
;;
sun)
target='sparc-sun-solaris'
configureGCCFlags=''
makeGCCFlags=''
# For sun, we assume that you have already copied the includes
# and libraries from a Solaris machine to the host machine.
if ! [ -d "$prefix/$target/include" -a -d "$prefix/$target/lib" ]; then
die "Must create $prefix/$target/{include,lib}."
fi
# The GCC tools expect limits.h to be in sys-include, not include.
( cd "$prefix/$target" &&
mkdir -p sys-include &&
mv include/limits.h sys-include )
;;
esac
exists () {
if [ ! -r "$1" ]; then
die "$1 does not exist"
fi
}
echo 'Checking that needed files exist.'
exists $binutils.tar
exists $gccTar
case "$targetType" in
cygwin)
exists $cygwin.tar
exists $w32api.tar
echo 'Copying include files and libraries needed by cross compiler.'
cd "$root"
mkdir -p cygwin
cd cygwin
tar x <../$cygwin.tar
tar x <../$w32api.tar
mkdir -p "$prefix/$target" ||
die "Cannot create $prefix/$target."
(cd usr && tar c include lib) | (cd "$prefix/$target/" && tar x)
;;
mingw)
exists $mingw.tar
exists $w32api.tar
echo 'Copying include files and libraries needed by cross compiler.'
cd "$root"
mkdir -p mingw
cd mingw
tar x <../$mingw.tar
tar x <../$w32api.tar
mkdir -p "$prefix/$target" ||
die "Cannot create $prefix/$target."
(tar c include lib) | (cd "$prefix/$target/" && tar x)
;;
*)
;;
esac
echo 'Building binutils.'
cd "$root"
if [ ! -d "$binutils" ]; then
tar x <$binutils.tar
fi
mkdir -p build-binutils
cd build-binutils
"../$binutils/configure" "--prefix=$prefix" "--target=$target" \
>"$root/configure-binutils-log" 2>&1 ||
die "Configure of binutils failed."
make all install >"$root/build-binutils-log" 2>&1 ||
die "Build of binutils failed."
echo 'Building gcc.'
cd "$root"
tar x <"$gccTar"
mkdir -p build-gcc
cd build-gcc
eval "../gcc-$gccVers/configure" -v $configureGCCFlags \
--enable-languages=c \
"--prefix=$prefix" \
"--target=$target" \
>"$root/configure-gcc-log" 2>&1 ||
die "Configure of gcc failed."
eval make $makeGCCFlags all install >"$root/build-gcc-log" 2>&1 ||
die "Build of gcc failed."
echo 'Success.'
|
