Newsgroups: comp.os.msdos.djgpp
From: tob AT world DOT std DOT com
Subject: Re: Allegro optimization: Just wondering!
Message-ID: <EBKJ9x.A7I@world.std.com>
Sender: tob AT world DOT std DOT com (Tom Breton)
Reply-To: tob AT world DOT std DOT com
Organization: BREnterprises
References: <5ni9um$hta AT news DOT interlog DOT com>
Date: Tue, 10 Jun 1997 16:32:21 GMT
Lines: 16
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Precedence: bulk

gautam AT interlog DOT com (Gautam N. Lad) writes:
> I was wondering, if I added various #ifdef / #endif for the various modules in
> Allegro, would the Allegro+DJGPP compiled executables reduce in size, and
> would the program speed up?

Not if you're attempting what I think. Defining out portions of the
header file does not make anything be linked in or not.

If you got that idea from the source I just posted, which does something
similar, that's not why I do it. I do it because allegro.h is a rather
large header, and gcc (pre-memory-upgrade) used to spend about a minute
just chugging thru that, so I reduced the compiler's workload by making
sure it never saw declarations etc. for unused modules.

        Tom