#!/bin/sh
PATH=/bin:/usr/bin:/usr/local/bin
# f77-style shell script to compile and load fortran, C, and assembly codes

#	usage:	f77 [-g] [-O] [-o absfile] [-c] files [-l library]

#		-o objfile	Override default executable name a.out.

#		-c		Do not call linker, leave relocatables in *.o.

#		-S		leave assembler output on file.s

#		-l library	(passed to ld).

#		-u		complain about undeclared variables

#		-w		omit all warning messages

#		-w66		omit Fortran 66 compatibility warning messages

#		files		FORTRAN source files ending in .f .
#				C source files ending in .c .
#				Assembly language files ending in .s .
#				efl source files ending in .e .

#		-D def		passed to C compiler (for .c files)

#		-I includepath	passed to C compiler (for .c files)

#		-Ntnnn		allow nnn entries in table t

# CG. 
unset CFLAGS
s=/tmp/stderr_$$
t=/tmp/f77_$$.o
CC=${CC_f2c:-'gcc'}
F2C=${F2C:-f2c}
F2CFLAGS=${F2CFLAGS:='-ARw8 -Nn802'}
rc=0
trap "rm -f $s $t; exit \$rc" 0
OUTF=a.out
cOPT=1
set -- `getopt cD:gI:N:Oo:Suw6 "$@"`
case $? in 0);; *) exit 1;; esac
CCFLAGS=
while
	test X"$1" != X--
do
	case "$1"
	in
	-c)	cOPT=0
		shift
		;;

	-D)	CCFLAGS="$CCFLAGS -D$2"
		shift 2
		;;

	-g)	CFLAGS="$CFLAGS -g"
		CCFLAGS="$CCFLAGS -g"
		F2CFLAGS="$F2CFLAGS -g"
		shift;;

	-I)	CCFLAGS="$CCFLAGS -I$2"
		shift 2
		;;

	-o)	OUTF=$2
		shift 2
		;;

	-O)	case $2 in -1) O=-O1;; -2) O=-O2;; -3) O=-O3;; *) O=-O;; esac
		case $O in -O);; *) shift;; esac
		shift
		;;

	-u)	F2CFLAGS="$F2CFLAGS -u"
		shift
		;;

	-w)	F2CFLAGS="$F2CFLAGS -w"
		case $2 in -6) F2CFLAGS="$F2CFLAGS"66; shift
			case $2 in -6) shift;; esac;; esac
		shift
		;;

	-N)	F2CFLAGS="$F2CFLAGS $1""$2"
		shift 2
		;;

	-S)	CFLAGS="$CFLAGS -S"
		cOPT=0
		shift
		;;

	*)
		echo "invalid parameter $1" 1>&2
		shift
		;;
	esac
done
shift
while
	test -n "$1"
do
	case "$1"
	in
	*.[fF])
		case "$1" in *.f) f=".f";; *.F) f=".F";; esac
		b=`basename $1 $f`
#echo "fff"
		$F2C $F2CFLAGS $1
		case $? in 0);; *) exit;; esac
                $CC -c $CFLAGS $b.c 2>$s
		rc=$?
		sed '/parameter .* is not referenced/d;/warning: too many parameters/d' $s 1>&2
		case $rc in 0);; *) exit;; esac
		OFILES="$OFILES $b.o"
		rm $b.c
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	*.s)
		echo $1: 1>&2
		OFILE=`basename $1 .s`.o
		${AS:-/usr/bin/as} -o $OFILE $AFLAGS $1
		case $? in 0);; *) exit;; esac
		OFILES="$OFILES $OFILE"
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	*.c)
		echo $1: 1>&2
		OFILE=`basename $1 .c`.o
                $CC -c $CFLAGS $CCFLAGS $1
		rc=$?; case $rc in 0);; *) exit;; esac
		OFILES="$OFILES $OFILE"
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	*.o)
		OFILES="$OFILES $1"
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	-l)
		OFILES="$OFILES -l$2"
		shift 2
		case $cOPT in 1) cOPT=2;; esac
		;;
	-l*)
		OFILES="$OFILES $1"
		shift
		case $cOPT in 1) cOPT=2;; esac
		;;
	-o)
		OUTF=$2; shift 2;;
	*)
		OFILES="$OFILES $1"
		shift
		case $cOPT in 1) cOPT=2;; esac
		;;
	esac
done

case $cOPT in 2) $CC -o $OUTF $OFILES -lf2c -lm;; esac
rc=$?
exit $rc