#!/bin/bash
# --- ROCK-COPYRIGHT-NOTE-BEGIN ---
# 
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
# Please add additional copyright information _after_ the line containing
# the ROCK-COPYRIGHT-NOTE-END tag. Otherwise it might get removed by
# the ./scripts/Create-CopyPatch script. Do not edit this copyright text!
# 
# ROCK Linux: rock-src/package/base/gcc/gcc.conf
# ROCK Linux is Copyright (C) 1998 - 2006 Clifford Wolf
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version. A copy of the GNU General Public
# License can be found at Documentation/COPYING.
# 
# Many people helped and are helping developing ROCK Linux. Please
# have a look at http://www.rocklinux.org/ and the Documentation/TEAM
# file for details.
# 
# --- ROCK-COPYRIGHT-NOTE-END ---

pkg_gcc_version=${xpkg#gcc}
pkg_gcc_target=${arch_target}
pkg_gcc_cross=""

case "$xpkg" in
	gcc?-cross-*|gcc??-cross-*)
		pkg_gcc_cross="${xpkg#gcc*-cross-}"
		pkg_gcc_version=${pkg_gcc_version%-cross-*}
		pkg_gcc_target="${pkg_gcc_cross}-unknown-linux-gnu"

		prefix=usr
		set_confopt

		var_append confopt " " "--target=$pkg_gcc_target"
		echo_status "Preparing to build a cross-gcc package for $pkg_gcc_cross."
		var_append INSTALL_WRAPPER_FILTER "|" 'sed -r "\,(/share/(info|locale)|/usr/(man|info)), d"'
		;;
	gcc?|gcc??)
		;;
	*)
		echo_error "Not supported $pkg package name: $xpkg"
		exit 1
		;;
esac

case "$pkg_gcc_version" in
	34|4*)
		gcc_lib_dir="gcc/${pkg_gcc_target}/${ver%%-*}"
		;;
	*)
		gcc_lib_dir="gcc-lib/${pkg_gcc_target}/${ver%%-*}"
		;;
esac

patchfiles="`ls $patchfiles $confdir/gcc$pkg_gcc_version/*.patch \
    $confdir/gcc$pkg_gcc_version/*.patch.$arch 2>/dev/null | tr '\n' ' '`"

if [ $stagelevel -le 1 ]; then
	patchfiles="`ls $patchfiles $confdir/gcc$pkg_gcc_version/*.patch.cross \
	    $confdir/gcc$pkg_gcc_version/*.patch.cross.$arch 2>/dev/null | tr '\n' ' '`"
fi

if [ "$pkg_gcc_cross" ] ; then
	configprefix=""
	confopt="--prefix=$root/$prefix \
	    --host=$arch_target --target=$pkg_gcc_target \
	    --disable-nls --disable-multilib"

	# A gcc with shared libraries needs at least this file from glibc.
	if [ ! -e $root/$prefix/$pkg_gcc_target/lib/crti.o ] ; then
                echo_status "Building only static gcc because there is no cross-glibc (yet)."
		var_append confopt " " "--disable-shared --enable-languages=c"
		if [ $pkg_gcc_version -ge 43 ]; then
			makeopt="all-gcc all-target-libgcc"
			makeinstopt="install-gcc install-target-libgcc"
		else
			makeopt="all-gcc"
			makeinstopt="install-gcc"
		fi
	else
		var_append confopt " " "--enable-shared --enable-languages=c,c++"
		makeopt=""
		makeinstopt="install"
	fi
elif [ $stagelevel -eq 0 ] ; then
	configprefix=""
	confopt="--prefix=${CLFS}/$cross_tools \
	    --host=${CLFS_HOST} --target=${CLFS_TARGET} \$extraconfopt"
	var_append extraconfopt " " " \
	    --with-sysroot=${CLFS} --disable-nls --disable-shared \
	    --enable-languages=c"
	if [ $pkg_gcc_version -ge 43 ]; then
		makeopt="all-gcc all-target-libgcc"
		makeinstopt="install-gcc install-target-libgcc"
	else
		makeopt="all-gcc"
		makeinstopt="install-gcc"
	fi
elif [ $stagelevel -eq 1 ] ; then
	configprefix=""
	confopt="--prefix=${CLFS}/$cross_tools \
	    --host=${CLFS_HOST} --target=${CLFS_TARGET} \$extraconfopt"
	var_append extraconfopt " " " \
	    --with-sysroot=${CLFS} --disable-nls --enable-shared \
	    --enable-languages=\$languages --enable-__cxa_atexit \
	    --enable-c99 --enable-long-long --enable-threads=posix"
	makeopt=""
	makeinstopt="install"
elif [ $stagelevel -ge 2 ] ; then
	var_append extraconfopt " " " \
	    --enable-shared \
	    --enable-__cxa_atexit \
	    --enable-c99 --enable-long-long --enable-threads=posix \
	    --enable-clocale=gnu"
	if [ $stagelevel -eq 2 ] ; then
		var_append extraconfopt " " "--enable-languages=\$languages \
		    --disable-libstdcxx-pch"
	else
		var_append extraconfopt ' ' '--enable-languages=$languages'
		x="ROCKCFG_PKG_GCC${pkg_gcc_version}_PROFILED"
		if [ "${!x}" = 1 ] ; then
			var_append makeopt ' ' "GCJFLAGS=\"\$CXXFLAGS\" \
			    profiledbootstrap"
		fi
	fi

	# We install binaries, info files and man pages in temporary
	# directories so we can rename them (adding version suffix) before
	# moving them to their final directories.
	#
	var_append makeopt " " "prefix=/$prefix"
	for x in bin info man data ; do
		mkdir -p $dummydir/inst_$x
		eval "${x}dir=$dummydir/inst_$x"
	done

	# libstdc++ locales are not installed to the $datadir without this.
	var_append INSTALL_WRAPPER_FILTER "|" "sed -e \
	    's,$root/$prefix/share\(/locale/.*/libstdc++.mo\),$dummydir/inst_data\1,'"

	var_append extraconfopt " " "--enable-version-specific-runtime-libs"
fi

if [ "$ROCKCFG_MULTILIB" = 0 ] ; then
	var_append extraconfopt " " "--disable-multilib"
fi

custmain="custmain"
custmain () {
	# Don't install libiberty, use the one from binutils instead.
	cp libiberty/Makefile.in{,.orig}
	sed 's/install_to_$(INSTALL_DEST) //' libiberty/Makefile.in.orig > \
	    libiberty/Makefile.in

	if [ $stagelevel -eq 2 ] ; then
		cp gcc/gccbug.in{,.orig}
		sed 's/@have_mktemp_command@/yes/' gcc/gccbug.in.orig > gcc/gccbug.in

		cp gcc/Makefile.in{,.orig}
		sed 's@\./fixinc\.sh@-c true@' gcc/Makefile.in.orig > gcc/Makefile.in
	fi

	languages="c"
	while read lang ; do
		x=""
		case $lang in
		c++)	x="ROCKCFG_PKG_GCC${pkg_gcc_version}_CPP"
			;;
		esac
		if [ $stagelevel -ge 3 ] ; then
			case $lang in
			ada)	x="ROCKCFG_PKG_GCC${pkg_gcc_version}_ADA"
				;;
			f77|f95|fortran)
				x="ROCKCFG_PKG_GCC${pkg_gcc_version}_FORTRAN"
				;;
			java)	x="ROCKCFG_PKG_GCC${pkg_gcc_version}_JAVA"
				;;
			objc)	x="ROCKCFG_PKG_GCC${pkg_gcc_version}_OBJC"
				;;
			obj-c++)
				x="ROCKCFG_PKG_GCC${pkg_gcc_version}_OBJCPP"
				;;
			esac
		fi
		if [ "${!x}" = 1 ] ; then
			var_append languages "," "$lang"
		fi
	done <<< "$( sed -nr 's,^language="(.*)",\1,p' gcc/*/config-lang.in )"

	mkdir -v ../objdir ; cd ../objdir

	eval echo $configprefix ../gcc-*/configure $( eval echo $confopt )
	eval $configprefix ../gcc-*/configure $( eval echo $confopt )

	eval make $makeopt

	if [ "$ROCKCFG_DO_CHECK" = 1 -a $stagelevel -ge 4 ] ; then
		make -k check || true
		../gcc-*/contrib/test_summary
	fi

	eval make $makeinstopt

	if [ $stagelevel -eq 0 -a $pkg_gcc_version -ge 43 ]; then
		cp -v $root/$prefix/lib/$gcc_lib_dir/include-fixed/*.h $root/$prefix/lib/$gcc_lib_dir/include/
	fi

    if [ $stagelevel -ge 2 -a -z "$pkg_gcc_cross" ] ; then
	# Rename and install binaries
	#
	cd $dummydir/inst_bin ; mkdir -p $root/$prefix/bin
	for y in c++ c++filt g++ cpp f77 g77 gfortran gcc gcov ; do
		for x in $y ${pkg_gcc_target}-$y ; do
			if [ -f "$x" ] ; then
				mv -v $x $root/$prefix/bin/${x}-${pkg_gcc_version}
			fi
		done
	done

	# Rename and install info-files
	#
	cd $dummydir/inst_info ; mkdir -p $root/$prefix/info
	for x in * ; do
		[ ! -f $x ] && continue  # e.g. if $x becomes '*' somehow
		fn=$( echo $x | sed "s,\([a-z0-9]*\),\1-${pkg_gcc_version}," )
		infoname=$( echo $x | sed "s,\([a-z0-9]*\).*,\1," )
		echo "$x -> $root/$prefix/info/$fn"
		sed "s,$infoname.info,$infoname-${pkg_gcc_version}.info," < $x \
						> $root/$prefix/info/$fn
		if [ $ROCKCFG_DEFAULT_CC = $xpkg ] ; then
			cp -v $x $root/$prefix/info/$x
		fi
		true
	done

	# Rename and install man-pages
	#
	cd $dummydir/inst_man/man1
	mkdir -p $root/$prefix/man/man1
	for x in * ; do
		[ ! -f $x ] && continue  # e.g. if $x becomes '*' somehow
		mv -v $x $root/$prefix/man/man1/${x%.1}-${pkg_gcc_version}.1
		if [ $ROCKCFG_DEFAULT_CC = $xpkg ] ; then
			ln -sf ${x%.1}-${pkg_gcc_version}.1 $root/$prefix/man/man1/$x
		fi
		true
	done

	cd $dummydir/inst_man/man7
	mkdir -p $root/$prefix/man/man7
	for x in * ; do
		[ ! -f $x ] && continue  # e.g. if $x becomes '*' somehow
		mv -v $x $root/$prefix/man/man7/${x%.1}-${pkg_gcc_version}.7
		if [ $ROCKCFG_DEFAULT_CC = $xpkg ] ; then
			ln -sf ${x%.1}-${pkg_gcc_version}.7 $root/$prefix/man/man7/$x
		fi
		true
	done

	# Rename and install locales
	#
	if [ -d "$dummydir/inst_data/locale" ] ; then
	cd $dummydir/inst_data/locale
	for x in */LC_MESSAGES/*.mo ; do
		[ ! -f "$x" ] && continue  # e.g. if $x becomes '*' somehow
		y="$root/$prefix/share/locale/$x"
		y="${y%.mo}-${pkg_gcc_version}.mo"
		mkdir -p ${y%/*}
		echo "$x -> $y"
		mv $x $y
		if [ $ROCKCFG_DEFAULT_CC = $xpkg ] ; then
			echo "symlink $x -> $y"
			ln -svf ${y##*/} $root/$prefix/share/locale/$x
		fi
		true
	done
	fi

	# Create various symlinks for cc, c++, cpp and f77.
	#
	if [ $ROCKCFG_DEFAULT_CC = $xpkg ] ; then
		create_links gcc cpp gcov
		rm -f $root/$prefix/bin/cc
		if [ "$ROCKCFG_DIETLIBC_ALL" = 1 ]; then
			cat <<- 'EOT' > $root/$prefix/bin/cc
				#!/bin/sh
				exec diet gcc "$@"
			EOT
			chmod +x $root/$prefix/bin/cc
		else
			ln -svf gcc $root/$prefix/bin/cc
		fi
		ln -vsf ../$prefix/bin/cpp $root/lib/cpp
	fi
	ln -sf gcc-${pkg_gcc_version} $root/$prefix/bin/kcc-${pkg_gcc_version}
	if [ $ROCKCFG_DEFAULT_KCC = $xpkg ] ; then
		ln -vsf gcc-${pkg_gcc_version} $root/$prefix/bin/kcc
	fi
	if [ $ROCKCFG_DEFAULT_CXX = $xpkg ] ; then
		create_links c++ c++filt g++

		cp -a $confdir/g++-autopch.sh $root/$prefix/bin/g++-autopch
		chmod +x $root/$prefix/bin/g++-autopch
	fi
	if [ $ROCKCFG_DEFAULT_F77 = $xpkg ] ; then
		create_links g77
		if [ -f $root/$prefix/bin/g77 ] ; then
			rm -vf $root/$prefix/bin/f77
			ln -vsf g77 $root/$prefix/bin/f77
		fi
	fi
	if [ $ROCKCFG_DEFAULT_F95 = $xpkg ] ; then
		create_links gfortran
	fi

	# Inject our default optimisation options so when the user calls
	# gcc/g++ they match the ones used to precompile the headers ...
	# Save the options affecting optimization only.
	#
	if [ $ROCKCFG_DEFAULT_CC = $xpkg ]; then
	  echo "Creating /etc/profile.d/gcc ..."
	  {
		echo "export CFLAGS_SIZE=\"$(echo $(
			eval echo \$GCC_WRAPPER_INSERT \$GCC_WRAPPER_APPEND \
			\$GCC${ver:0:1}_WRAPPER_INSERT \$GCC${ver:0:1}_WRAPPER_APPEND | \
			tr ' ' '\n' | sed -e 's/^-SIZE-/-/' -e '/^-O/ { p; d; }' -e '/^-mcpu=/ { p; d; }' \
			-e '/-march=/ { p; d; }' -e '/-mtune=/ { p; d; }' -e 'd'
		))\""
		echo "export CFLAGS_SPEED=\"$(echo $(
			eval echo \$GCC_WRAPPER_INSERT \$GCC_WRAPPER_APPEND \
			\$GCC${ver:0:1}_WRAPPER_INSERT \$GCC${ver:0:1}_WRAPPER_APPEND | \
			tr ' ' '\n' | sed -e 's/^-SPEED-/-/' -e '/^-O/ { p; d; }' -e '/^-mcpu=/ { p; d; }' \
			-e '/-march=/ { p; d; }' -e '/-mtune=/ { p; d; }' -e 'd'
		))\""
		echo "export CFLAGS=\"\$CFLAGS_SIZE\""
	  } > $root/etc/profile.d/gcc
	fi
	if [ $ROCKCFG_DEFAULT_CXX = $xpkg ]; then
	  echo "Creating /etc/profile.d/gxx ..."
	  {
		echo "export CXXFLAGS_SIZE=\"$(echo $(
			eval echo \$GCC_WRAPPER_INSERT \$GCC_WRAPPER_APPEND \
			\$GCC${ver:0:1}_WRAPPER_INSERT \$GCC${ver:0:1}_WRAPPER_APPEND | \
			tr ' ' '\n' | sed -e 's/^-SIZE-/-/' -e '/^-O/ { p; d; }' -e '/^-mcpu=/ { p; d; }' \
			-e '/-march=/ { p; d; }' -e '/-mtune=/ { p; d; }' -e 'd'
		))\""
		echo "export CXXFLAGS_SPEED=\"$(echo $(
			eval echo \$GCC_WRAPPER_INSERT \$GCC_WRAPPER_APPEND \
			\$GCC${ver:0:1}_WRAPPER_INSERT \$GCC${ver:0:1}_WRAPPER_APPEND | \
			tr ' ' '\n' | sed -e 's/^-SPEED-/-/' -e '/^-O/ { p; d; }' -e '/^-mcpu=/ { p; d; }' \
			-e '/-march=/ { p; d; }' -e '/-mtune=/ { p; d; }' -e 'd'
		))\""
		echo "export CXXFLAGS=\"\$CFLAGS_SIZE\""
	  } > $root/etc/profile.d/gxx
	fi

	# Create symlinks for runtime libraries so they can be found by
	# the dynamic loader and force rebuilding of the wrapper links
	#
	[ "$ROCKCFG_DEFAULT_CC" = $xpkg ] && \
		( mkdir -p $root/$prefix/lib ; cd $root/$prefix/lib ; \
		ln -vfs ${gcc_lib_dir}/*.so.* . ; )
    fi
	rm -fv $base/build/$ROCKCFG_ID/ROCK/$toolsdir/.lastupdate
}

create_links() {
	for x ; do
		if [ -f "$root/$prefix/bin/$x-${pkg_gcc_version}" ] ; then
			rm -vf $root/$prefix/bin/$x
			ln -vs $x-${pkg_gcc_version} $root/$prefix/bin/$x
		fi
		x="${pkg_gcc_target}-$x"
		if [ -f $root/$prefix/bin/$x-${pkg_gcc_version} ] ; then
			rm -vf $root/$prefix/bin/$x
			ln -vs $x-${pkg_gcc_version} $root/$prefix/bin/$x
		fi
	done
}