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From Joe Orton <jor...@redhat.com>
Subject Re: Linking mod_ssl with a specific OpenSSL version
Date Fri, 17 Aug 2012 08:11:00 GMT
On Thu, Aug 16, 2012 at 08:36:31PM +0200, Kaspar Brand wrote:
> I wonder if we should add support for module-specific CFLAGS etc.,
> which would always appear before the EXTRA_XXX stuff in the compile
> and link commands, i.e. in rules.mk we would have:
> 
> ALL_CFLAGS   = $(MOD_CFLAGS) $(EXTRA_CFLAGS) $(NOTEST_CFLAGS) $(CFLAGS)
> ALL_CPPFLAGS = $(DEFS) $(INTERNAL_CPPFLAGS) $(MOD_CPPFLAGS) $(EXTRA_CPPFLAGS) $(NOTEST_CPPFLAGS)
$(CPPFLAGS)
> ALL_INCLUDES = $(INCLUDES) $(MOD_INCLUDES) $(EXTRA_INCLUDES)
> 
> ALL_LDFLAGS  = $(MOD_LDFLAGS) $(EXTRA_LDFLAGS) $(NOTEST_LDFLAGS) $(LDFLAGS)
> 
> A particular module could then set its specific MOD_CFLAGS etc. in
> modules.mk, and these would always have priority over those possibly
> inserted by other modules.

Doing CFLAGS et al like that doesn't generalise brilliantly, because 
they are per-directory (modules/xxx) not strictly per-module, but it 
could be done anyway, and that wouldn't matter for mod_ssl.  Yeah, 
probably a good idea.

It should be possible to override LDFLAGS truly per-module by tweaking 
the SH_LINK line generated in modules.mk.

Regards, Joe

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