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From: cek@wsc-sun.boeing.com (Conrad Kimball)
Newsgroups: comp.windows.x
Subject: Re: Multiple architecture's compiled out of a single source tree-- how
Message-ID: <1833@wsc-sun.BOEING.COM>
Date: 3 Jun 91 17:14:30 GMT
References: <9105282237.AA11404@teccb1.TFS>
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Organization: Boeing Computer Services (ESP), Seattle, WA
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In article <9105282237.AA11404@teccb1.TFS>, jason@tfs.COM (Jason P. Venner) writes:
|> 
|> Is anyone compiling multiple architectures out of a single source
|> tree?
|> 
|> if so, what are you doing?

Depending on what you mean by a single source tree, yes I am doing what
you describe.  I keep a single tree of the source files (with file
permissions set to 444 and directory permissions set to 555, to prevent
inadvertent damage).  When I wish to build for a particular architecture
(currently I build for sun3, sun4, DEC Vaxstation and DECstation
architectures) I create a parallel "shadow" tree of links (either symbolic
or hard) into the "true" source tree.

Then I apply any architecture-specific patches and what-not to the shadow
tree and build within the shadow tree, from which I also install the
built software as well.   When I'm all done and want to clean up, its a
simple "rm -fr" on the shadow tree.

This works well for me since the source tree is available to all my
architectures via NFS.  Depending on disk space availability, I often
build 2 or more architectures simultaneously.

The R4 release materials contain a script to create shadow trees:
mit/util/scripts/lndir.sh.  I used this for a while, but then I generalized
and extended it for general purpose personal use in my other work.

--
Conrad Kimball 		 Boeing Computer Services     (206) 865-6410   
Email: cek@wsc-sun.boeing.com or cek%wsc-sun@atc.boeing.com
UUCP:  uw-beaver!bcsaic!wsc-sun!cek