Date: Mon, 16 Dec 1996 15:47:05 GMT
From: kvhk AT ivs4 DOT barco DOT com (Koen Van Herck)
Message-Id: <9612161547.AA17183@ivs4.>
To: t DOT casey AT bom DOT gov DOT au
Cc: djgpp AT delorie DOT com
In-Reply-To: <9612160116.AA03619@ncc01.ho.BoM.GOV.AU> (message from Trevor Casey on Mon, 16 Dec 96 12:16:42 DST)
Subject: Re: f2c
Reply-To: Koen DOT VanHerck AT barco DOT com

I have compiled f2c with djgpp. This is what I have:

djgpp v2.01 = gcc-2.7.2.1
make-3.75
bison 1.24
fileutils-3.13
textutils-1.19
sed (some old version)
f2c version 19950201

You can get all these packages from the standard djgpp distribution.
f2c is in v1apps/f2c95201.zip !

Install all packages. The f2c source gets into 
djgpp/contrib/f2c95201/src/

The f2c program is compiled for djgpp v1. It doesn't work on djgpp
v2. Thus you should recompile the package.

Now I had to change a few things in the makefile in the
f2c95201/src/src directory.  This is the diff:

36c36
<       sed <tokdefs.h "s/#define/%%token/" > gram
---
>       sed <tokdefs.h "s/#define/%token/" > gram
43c43
<       sed 's/^# line.*/\/* & *\//' gram_tab.c >gram.c
---
>       sed "s/^# line.*/\/* & *\//" gram_tab.c >gram.c

Thus, replace the %%token with %token and the single quotes with
double quotes on the appropriate lines.

Now you can go to f2c95201\src and run mk.bat
This compiles everything.

Then install the package using
install d:\djgpp

Then try the package with a test.f fortran file:
f2c test.f
gcc -o test test.c -lf2c -lm

You can also use a makefile to compile fortran files automatically:

I have two examples included how to use this makefile. simple.f is a
simple fortran program. complex.f is a program that calls sub.f.

If you have further questions, please contact me.

----begin makefile-------
# This set of implicit rules makes it possible to transparantly
# use f2c. You can use, e.g.,
#   make test.c
#   make test.o
#   make test
#   make test.exe

# Remove old fortran implicit rules
%.o : %.f
%.o : %.F
% : %.f
% : %.F

# Original link rule has highest priority
% : %.o
	$(LINK.o) $^ $(LOADLIBES) $(LDLIBS) -o $@

# Implicit rule to compile & link fortran source (create .exe)
%.exe : %.f
	f2c $(F2CFLAGS) $<
	$(CC) $*.c $(LOADLIBES) -o $@
	rm $*.c

# Implicit rule to compile & link fortran source
% : %.f
	f2c $(F2CFLAGS) $<
	$(CC) $*.c $(LOADLIBES) -o $@
	rm $*.c

# Implicit rule to compile fortran source
%.o : %.f
	f2c $(F2CFLAGS) $<
	$(CC) -c $(CFLAGS) -o $@ $*.c
	rm $*.c

# Implicit rule to generate c from fortran
%.c : %.f
	f2c $(F2CFLAGS) $<


# F2C Options

# long input lines
F2CFLAGS  = -f
# ANSI C
F2CFLAGS += -A

# Needed libraries for f2c
LOADLIBES += -lf2c -lm

# here starts the normal makefile

all: simple complex

clean:
	rm -f *.c *.o *.exe simple complex

complex: complex.o sub.o
----end of makefile-------




----
Koen Van Herck
Electronic Design Engineer
E-mail: Koen DOT VanHerck AT barco DOT com

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