: This script creates a configuration tree.
: Should be called with 3 parameters: the configuration root, the source
: root, and a file containing the makefile definitions.

set -e

USAGE="Usage: $0 <config_root> <source_root> <macro_file>"

case $# in
3)	;;
*)	echo $USAGE 1>&2
	exit 1
	;;
esac

CONFIG=$1
SRC_HOME=$2
MACROS=$3

if [ -d $SRC_HOME ]
then :
else echo "$0: $SRC_HOME is not a directory" 1>&2
     exit 2
fi

if [ -f $MACROS ]
then :
else echo "$0: $MACROS not found" 1>&2
     exit 3
fi

case ${CONFIG}XX${MACROS}XX${SRC_HOME} in
/*XX/*XX/*)	;;
*)	echo "$0: all arguments should be absolute path names" 1>&2
	exit 4
	;;
esac

create_dir $CONFIG

cd $SRC_HOME
find . -type d -print > $CONFIG/dir_list

cd $CONFIG
for i in `cat dir_list`
do
	create_dir $i
	if [ -f $SRC_HOME/$i/proto.make ]
	then mk_makefile $MACROS $SRC_HOME/$i/proto.make > $i/Makefile
	fi
	if [ -f $SRC_HOME/$i/Action ]
	then
		cp $SRC_HOME/$i/Action $i/Action
	fi
done

cd $SRC_HOME/util/ceg/util
for i in make_*
do
	mk_makefile $MACROS $i > $CONFIG/util/ceg/util/$i
done

cd $CONFIG

for i in lang/cem/cemcom.ansi lang/cem/cemcom lang/m2/comp
do
	cp $SRC_HOME/$i/BigPars $CONFIG/$i/Parameters
done
for i in lang/pc/comp lang/cem/cpp.ansi
do
	cp $SRC_HOME/$i/Parameters $CONFIG/$i/Parameters
done

cd $CONFIG/mach
for i in *
do
    if [ -d $i ]
    then
	if [ -d $i/as ]
	then
		cd $i/as
		mk_makefile $MACROS $SRC_HOME/mach/proto/as/proto.make | sed -e "/#MACH_DEFINE/,/^MACH/s/=.*/= $i/" > Makefile
		cd ../..
	fi
	if [ -d $i/top ]
	then
		cd $i/top
		mk_makefile $MACROS $SRC_HOME/mach/proto/top/proto.make | sed -e "/#MACH_DEFINE/,/^MACH/s/=.*/= $i/" > Makefile
		cd ../..
	fi
	if [ -d $i/cg ]
	then
		cd $i/cg
		mk_makefile $MACROS $SRC_HOME/mach/proto/cg/proto.make | sed -e "/#MACH_DEFINE/,/^MACH/s/=.*/= $i/" > Makefile
		cd ../..
	fi
	if [ -d $i/ncg ]
	then
		cd $i/ncg
		mk_makefile $MACROS $SRC_HOME/mach/proto/ncg/proto.make | sed -e "/#MACH_DEFINE/,/^MACH/s/=.*/= $i/" > Makefile
		if [ -f $SRC_HOME/mach/$i/ncg/table_dir ]
		then
			ed - Makefile <<EOF
/^#TABLE_DEFINE/+1r $SRC_HOME/mach/$i/ncg/table_dir
w
q
EOF
		fi
		cd ../..
	fi
	for j in libem libend libmon libfp libsys libdb
	do
	    if [ -d $i/$j ]
	    then
		cd $i/$j
		mk_makefile $MACROS $SRC_HOME/mach/proto/libg/proto.$j | sed -e "/#MACH_PARAMS/r $SRC_HOME/mach/$i/mach_params" > Makefile
		cd ../..
	    fi
	done
	for j in libbsd4_1a libbsd4_2 libsysV_2
	do
	    if [ -d $i/$j ]
	    then
		cd $i/$j
		mk_makefile $MACROS $SRC_HOME/mach/proto/libg/proto.libsys | sed -e "/#MACH_PARAMS/r $SRC_HOME/mach/$i/mach_params" -e "s/libsys/$j/g" > Makefile
		cd ../..
	    fi
	done
	for j in libcc libcc.ansi libm2 libpc libbc liboc libf77
	do
	    create_dir $i/$j
	    cd $i/$j
	    mk_makefile $MACROS $SRC_HOME/mach/proto/libg/proto.$j | sed -e "/#MACH_PARAMS/r $SRC_HOME/mach/$i/mach_params" > Makefile
	    cd ../..
	done
	if [ $i = vax4 ]
	then :
	elif [ -d $i/libsys ]
	then :
	else 
		create_dir $i/libsys
		cd $i/libsys
		mk_makefile $MACROS $SRC_HOME/mach/proto/libg/proto.sysmon | sed -e "/#MACH_PARAMS/r $SRC_HOME/mach/$i/mach_params" > Makefile
		cd ../..
	fi
    fi
done