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Re: Best means to override CXXFLAGS locally

From: Akim Demaille
Subject: Re: Best means to override CXXFLAGS locally
Date: Mon, 30 Oct 2006 08:27:00 +0100
User-agent: Gnus/5.110006 (No Gnus v0.6) Emacs/21.4 (gnu/linux)

>>> "Ralf" == Ralf Wildenhues <address@hidden> writes:

 > Hello Akim,
 > * Akim Demaille wrote on Sun, Oct 22, 2006 at 01:10:02PM CEST:
 >> >What would be the cleanest means to handle this exception?
 >> Here is what I did:

 > I think it's much better to do the munging in  Store the
 > CFLAGS set by the user and/or AC_PROG_CC in AM_CFLAGS, and override
 > CFLAGS.  Depending upon whether the changed flags settings apply to only
 > a few, non-portability-problematic files in your project, the rest of
 > the configure tests should run with the flags set by the user, and you
 > should only override at the end, or the converse.

I agree this is cleaner, but it is also more dangerous: there are many
libraries and programs in there, including several with their own
flags (where I would have to also add C*FLAGS by hand).  So, although
I also considered that option, I chose the other because it is less
dangerous.  The circumlocutions are more local this way.

 > Much cleaner, involves much less changes.  If you have something that
 > works nicely and is reasonably generally useful, post a summary, or
 > even better, a FAQ addition to the manual.  ;-)

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