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Re: AC_INIT seems to be setting CXXFLAGS

From: Richard Ash
Subject: Re: AC_INIT seems to be setting CXXFLAGS
Date: Sun, 26 Jul 2009 22:20:04 +0100

On Sun, 2009-07-26 at 22:11 +0100, Richard Connon wrote:
> Hi. I'm trying to write a script for a project I'm working
> on. At present it has AC_INIT at the beginning.
> It seems that running that macro is adding "-g -O2" to the CXXFLAGS
> variable. Is there anything I can do to stop this?

I think it's actually AC_PROG_CXX which is finding g++ and adding those
options to CXXFLAGS. This is very easy to work around - just save and
restore the variable (and probably all the other compiler flag variables
for sanity) around the invocation of AC_PROG_*.

Quite a lot of package configure scripts do this, in order to be able to
turn debugging off properly when doing release builds (i.e. take -g out
and not have it put back in for you).


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