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From: jfh@killer.UUCP
Newsgroups: comp.unix.questions
Subject: Re: MAKE checking archive files?
Message-ID: <730@killer.UUCP>
Date: Thu, 2-Apr-87 11:06:09 EST
Article-I.D.: killer.730
Posted: Thu Apr  2 11:06:09 1987
Date-Received: Sun, 5-Apr-87 04:49:48 EST
References: <5398@brl-adm.ARPA>
Sender: usenet@killer.UUCP
Organization: The Unix(tm) Connection, Dallas, Texas
Lines: 34
Summary: Most of the ones I use do ...

In article <5398@brl-adm.ARPA>, Schauble@MIT-MULTICS.arpa (Paul Schauble) writes:
> Is there a version of make circulating that is capable of checking the
> times on individual elements within archives such as those produced by
> ar or within object libraries.  For example, if I keep an object library
> and keep the corresponding sources within an a .ar file, is there a make
> that can do the usual date-time processing without exploding the .ar and
> the object library?
> 
> Please copy me directly on any responses.  I'll summarize to the list if
> I get anything interesting.
> 
The manual page for make says:

_Libraries_
	If a target or dependency name contains parentheses, it is assumed
	to be an archive library, the string within parentheses referring to a
	member within the library...

The rules I have used when writing makefile's for libraries look like this:

mylib.a:	mylib.a(file1.o) mylib.a(file2.o) ...

mylib.a(file1.o):	file1.c ...
	cc -c -O file1.c
	ld -r -x file1.o		# removes superfluous symbols
	mv a.out file1.o		# puts the .o file back (bitch)
	ar rv mylib.a file1.o		# install in archive
	rm file1.o			# remove unneed file

This is a _pain_, but it seems to work very well.

- john.		(jfh@killer.UUCP)

No disclaimer.  Whatcha gonna do, sue me?