#!/bin/sh

set -e

# Make sure we're in our directory (i.e., where this shell script is)
echo $0
cd `dirname $0`

# Default sed: whatever's in $PATH; set by the buildsystem to be the
# host-built sed tool we know supports the syntax we use
: ${SED=sed}

# Configure fetch method
URL="http://www.minix3.org/pkgsrc/distfiles/minix/3.3.0/gcc-4.5.3.tar.bz2"
BACKUP_URL="ftp://ftp.gwdg.de/pub/misc/gcc/releases/gcc-4.5.3/gcc-4.5.3.tar.bz2"
FETCH=ftp
if which curl >/dev/null
then
	FETCH="curl -O -f"
fi

# Remove a few directories from the start, so we do not end up with a 165MB patch...
DELETEDIRS="include/elf 
	libada libjava libffi libgfortran 
	boehm-gc gnattools 
	gcc/ada gcc/fortran gcc/java 
	gcc/testsuite/ada  gcc/testsuite/gnat gcc/testsuite/gnat.dg 
	gcc/testsuite/gfortran.dg  gcc/testsuite/gfortran.fortran-torture 
"
# Fetch sources if not available
if [ ! -d dist ];
then
	if [ ! -f gcc-4.5.3.tar.bz2 ];
	then
		$FETCH $URL
		if [ $? -ne 0 ]; then
			$FETCH $BACKUP_URL
		fi
	fi

	tar -oxjf gcc-4.5.3.tar.bz2
	mv gcc-4.5.3 dist
	cd dist
	rm -rf $DELETEDIRS
	for f in gcc/doc/gccinstall.info gcc/doc/gccint.info
	do	# This is a hack to remove NUL characters in these .info
		# files. They make some patch(1)es fail.
		$SED 's/^..\[index..\]$/[index]/' <$f >k && mv k $f
	done
	cat ../patches/* | patch -p1
	cp ../files/minix.h gcc/config/
	cp ../files/t-minix gcc/config/
	cp ../files/minix-spec.h gcc/config/
	cp ../files/arm-minix.h gcc/config/arm/minix.h
	cp ../files/i386-minix.h gcc/config/i386/minix.h
	cp ../files/gcov-minix-fs-wrapper.h gcc/ 
fi