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Path: utzoo!attcan!uunet!mcvax!cernvax!paul
From: paul@cernvax.UUCP (paul)
Newsgroups: comp.lang.ada
Subject: Dec's "$ACS LINK". How do I make it conditional?
Message-ID: <683@cernvax.UUCP>
Date: 18 May 88 09:35:53 GMT
Reply-To: paul@cernvax.UUCP ()
Organization: CERN European Laboratory for Particle Physics, CH-1211 Geneva, Switzerland
List-Id: <comp.lang.ada>

We have an Ada subsystem that is rebuilt using MMS (Dec's version of Unix MAKE).
Of course, the MMS should do little but call ACS. 

Life is not that easy however as I can't seem to find a decent way to get ACS to
do a conditional LINK for me. ACS COMPILE is fine as it only compiles if
necessary, ie after inspecting the closure sources and object. On the other
hand, ACS LINK seems to link always. 

My temporary workaround is to have dummy .obj files created by ACS COMPILE
whenever it does any work. The dummy files are outside in a directory where MMS
can see them and subsequently decide whether there is a need to re-link. This is
an awful mess though. 

Does anyone know how to make ACS LINK conditional? 

Paul Burkimsher, Cern, Geneva. "Here's my vote for 1 line signatures."