#!/bin/sh
# f77-style shell script to compile and load fortran, C, and assembly codes
#	usage:	f77 [-g] [-O|-O[23456]] [-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
#		-f*		pass thru gcc optimizer options
#		-W*		pass thru gcc warning options
#		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 .
#		-I includepath	passed to C compiler (for .c files)
#		-Ntnnn		allow nnn entries in table t
#		-cpp -Dxxx	pipe through cpp
#
# [IRAF] -- For IRAF we had to modify the f77 script that came with Linux
# to remove the "f2ctmp_XX" prefix that the script was adding to the Fortran
# file names when compiling.  The main problem with this is that it prevents
# source code debugging from working since the file that was compiled (e.g.
# f2ctmp_foo.f) no longer exists at run time.  A lesser problem was that the
# code which deletes the f2ctmp_ files would return an exit 4 status, causing
# problems with XC (XC was modified for Linux to ignore this but it is still
# a bug with the f77 script).  NOTE -- the old behavior is still present if
# the Fortran file has a .F extension.  The modified (no f2ctmp_) behavior is
# for .f files.

# This f77.sh will modify the IRAF generated files so that the memd struct
# contains two elements rather than one element.  This is essential to 
# insure that doubles are aligned on 128 byte boundaries, which is necessary
# for gcc 4.8 to correctly generate instructions with SSE2.
#
# Also note that config.h has to also have the memory alignment set so that
# doubles are aligned against 128-bit boundaries.
#
# This was the reported with Mageia bug #11507
# https://bugs.mageia.org/show_bug.cgi?id=11507

s=/tmp/stderr_$$
iraf=${iraf:-'/usr/lib/iraf/'}
CC=${CC_f2c:-'gcc'}
CFLAGS="-I${iraf}include -I${iraf}unix/f2c/libf2c ${XC_CFLAGS} -Wno-maybe-uninitialized -Wno-strict-aliasing -Wno-unknown-warning-option -fcommon"
EFL=${EFL:-/v/bin/efl}
EFLFLAGS=${EFLFLAGS:-'system=portable deltastno=10'}
F2C=${F2C:-${iraf}unix/bin/f2c.e}
F2CFLAGS=${F2CFLAGS:='-KRw8 -Nn802'}
keepc=0
warn=1
xsrc=0
rc=0
trap 'rm -f $s ; exit $rc' 0
OUTF=a.out
cOPT=1
G=
CPP=cat
CPPFLAGS=
# set -- `getopt cD:gI:N:Oo:Suw6 "$@"`
case $? in 0);; *) exit 1;; esac
while
	test X"$1" != X--
do
	case "$1"
	in
	-b)	CFLAGS="$CFLAGS -b $2"
		shift 2
		;;

	-K)	keepc=1
		shift
		;;

	-c)	cOPT=0
		shift
		;;

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

	-D*)	CPPFLAGS="$CPPFLAGS $1"
		shift 1
		;;

	-f2c)	F2C="$2"
		#F2C="${iraf}/unix/bin/f2c.e"
		shift 2
		;;

	-f*)	CFLAGS="$CFLAGS $1"
		shift 1
		;;

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

	-x64)	CFLAGS="$CFLAGS -mfloat64"
		shift;;

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

	-I*)	CFLAGS="$CFLAGS $1"
		shift 1
		;;

	-m*)	CFLAGS="$CFLAGS $1"
		shift 1
		;;

	-o)	OUTF=$2
		shift 2
		;;

	-O*)
		CFLAGS="$CFLAGS $1"
		shift
		;;

	-arch)	CFLAGS="$CFLAGS -arch $2"
		shift 2
		;;

	-U)	CFLAGS="$CFLAGS -arch ppc -arch i386"
		shift
		;;

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

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

	-FP)	CFLAGS="$CFLAGS -include $2"
		shift 2
		;;

	-W*)	CFLAGS="$CFLAGS $1"
		warn=1
		shift 1
		;;

	-w)	F2CFLAGS="$F2CFLAGS -w"
		CFLAGS="$CFLAGS -w"
		warn=0
		case $2 in -6) F2CFLAGS="$F2CFLAGS"66; shift
			case $2 in -6) shift;; esac;; esac
		shift
		;;

	-x)	xsrc=1
		shift
		;;

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

	-N*|-C)	F2CFLAGS="$F2CFLAGS $1"
		shift 1
		;;

	-cpp)	CPP="/lib/cpp -traditional"
		shift 1
		;;

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

	-*)
		echo "invalid parameter $1" 1>&2
		shift
		;;

	*)	set -- -- $@
		;;
	esac
done
shift

while
	test -n "$1"
do
	case "$1"
	in
	*.f)
		case "$1" in *.f) f=".f";; *.F) f=".F";; esac
		b=$(basename "$1" $f)
		if [ $warn = 0 ]; then
		    $F2C $F2CFLAGS "$b.f" 2>"$s"
		    sed '/^	arg .*: here/d' "$s" 1>&2
		else
		    $F2C $F2CFLAGS "$b.f"
		fi
		if [ $xsrc = 1 ]; then
		    sed -e "s/$b\\.f/$b.x/" < "$b.c" > "$b.t"; mv "$b.t" "$b.c"
		fi
                $CC $CPPFLAGS -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 5;; esac
		if [ $keepc = 0 ]; then
		    rm -f "$b.c"
		fi
		OFILES="$OFILES $b.o"
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	*.F)
		case "$1" in *.f) f=".f";; *.F) f=".F";; esac
		b=$(basename "$1" "$f")
                trap 'rm -f f2ctmp_$b.* ; exit 4' 0
                sed 's/\\$/\\-/;
                     s/^ *INCLUDE *'\(.*\)'.*$/#include "\1"/' "$1" |\
		 $CPP $CPPFLAGS |\
		 grep -E -v '^# ' > "f2ctmp_$b.f"
                trap 'rm -f f2ctmp_$b.* ; exit 4' 0
		$F2C $F2CFLAGS "f2ctmp_$b.f"
		case $? in 0);; *) rm f2ctmp_* ; exit 5;; esac
                rm -f "f2ctmp_$b.f"
		mv "f2ctmp_$b.c" "$b.c"
		if [ -f "f2ctmp_$b.P" ]; then mv "f2ctmp_$b.P" "$b.P"; fi
		case $? in 0);; *) rm -f "$b.c" ; exit 5;; esac
                trap 'rm -f $s ; exit 4' 0
                $CC $CPPFLAGS -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 5;; esac
		if [ $keepc = 0 ]; then
		    rm -f "$b.c"
		fi
		OFILES="$OFILES $b.o"
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	*.e)
		b=$(basename "$1" .e)
		$EFL $EFLFLAGS "$1" >"$b.f"
		case $? in 0);; *) exit;; esac
		$F2C $F2CFLAGS "$b.f"
		case $? in 0);; *) exit;; esac
                $CC -c $CFLAGS "$b.c"
		case $? in 0);; *) exit;; esac
		OFILES="$OFILES $b.o"
		rm "$b".[cf]
		case $cOPT in 1) cOPT=2;; esac
		shift
		;;
	*.s)
		echo "$1": 1>&2
		OFILE=$(basename "$1" .s).o
		${AS:-as} -o "$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 $CPPFLAGS "$1"
		rc=$?; 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 $G -o "$OUTF" "$OFILES" -lf2c -lm;; esac
rc=$?
exit $rc