Xref: utzoo comp.sources.wanted:2797 comp.lang.c:5690
Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!decwrl!spar!hunt
From: hunt@spar.SPAR.SLB.COM (Neil Hunt)
Newsgroups: comp.sources.wanted,comp.lang.c
Subject: Re: Desperately Seeking Makefile Maker
Message-ID: <581@spar.SPAR.SLB.COM>
Date: 18 Dec 87 18:24:41 GMT
References: <1034@cpocd2.UUCP> <538@silver.bacs.indiana.edu>
Reply-To: hunt@spar.UUCP (Neil Hunt)
Organization: SPAR - Schlumberger Palo Alto Research
Lines: 61

In article <1034@cpocd2.UUCP> nate@cpocd2.UUCP (Nathan Hess) writes:
>	Is there a program available that creates makefiles, preferrably
>	written in C?

Here is a makefile maker which I have been using for a year or so.
It is based upon a version from Steve Rubin at Schlumberger, which may
be based upon something else...

Enjoy - Neil/.

#! /bin/csh
#
#	Script to make makefile entries for C source files.
#	Neil Hunt, Schlumberger Palo Alto Research 1986.
#	Ideas from Steve Rubin at Schlumberger.
#
# note: source files must spell /^#include/ with no spaces, and nested
#	includes are not supported. <files> are assumed stable, and
#	are not included in the dependency listing.
#
# example% depend file1.c file2.c >> Makefile
#
# egrep searches for include lines in source files; /dev/null is included
#	to force the filename to be printed even for a single source file.
#
# sed edits the lines to a form 'file.c: file.o include.h'
#
# awk assembles the lines into makefile format:
#	prev holds the previous file.c arg
#	doit holds a line of the form '   cc -c ${CFLAGS} file.c'
#	rec is a record initialised when a new 'file.c' is found,
#	and built up over the next few lines until its length would be > 75
#

egrep '^#include.*".*"' /dev/null $* | \
sed -e 's/\(.*\).c:[^"]*"\([^"]*\)".*/\1.o: \1.c \2/' | \
awk ' \
{ \
	if ($1 != prev) \
	{ \
		if (rec != "") \
		{ \
			print rec; \
			print doit; \
			print ""; \
		} \
		rec = $0; \
		prev = $1; \
		doit = "	cc -c ${CFLAGS} " $2; \
	} \
	else \
	{ \
		if (length(rec $3) > 75) \
		{ \
			print rec " \\"; \
			rec = "          " $3; \
		} \
		else rec = rec " " $3 \
	} \
} \
END { print rec; print doit; print ""; } '