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Re: swig: srcdir vs. blddir

From: Greg Hudson <ghudson_at_MIT.EDU>
Date: 2005-12-16 01:22:42 CET

On Thu, 2005-12-15 at 23:57 +0000, Philip Martin wrote:
> Finally spotted this. One disadvantage of the new system is that
> multiple parallel builds are no longer independent. Previously it was
> possible to have two or more build dirs, maybe with different
> configurations, and each would be independent. With the new system
> it's no longer possible to configure the builds to use different
> versions of swig, and running 'make clean' in one dir could break the
> build in another if the generated files disappear during the build.
> Now I don't do things like that very often, so it's not a big problem,
> but I have done both of them in the past.

I don't think "make clean" should be deleting files generated in the
source tree. That would mean a tarball build would break after a "make
clean" for users who don't have the tools used to create those files.

"make distclean" shouldn't remove them either, for that matter, since
they're part of the distributed files. I guess that's what "make
extraclean" is for.

Regardless, two parallel builds in separate directories won't be
independent if you start from the checked-out sources. But they will be
if you start from the distributed tarball sources; that's good enough
for me.

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Received on Fri Dec 16 01:24:45 2005

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