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Using libtool even when not strictly needed

From: Thomas Jahns
Subject: Using libtool even when not strictly needed
Date: Mon, 26 Sep 2016 11:59:06 +0200
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I've run into the problem where a compiler we regularly use (NAG Fortran compiler) has flag conventions that are at odds with libtool (i.e. nagfor uses -Wc,opt to pass opt to the C compiler it uses as backend). For this reason I'd like to add the compiler options to FCFLAGS in a form that's escaped for the purposes of libtool, i.e. prefixed with -Xcompiler or -Xlinker.

This works well but at the moment requires me to override FCCOMPILE like this in (note the -static flag):

        $(LIBTOOLFLAGS) --mode=compile $(FC) -static $(AM_FCFLAGS) $(FCFLAGS)

This way all compilations are passed through libtool and options are subjected consistently to the same parsing sequence. I'm not sure how this would affect people who want to build pie executables, but that's an issue for later.

Now the question remains, since FCCOMPILE is really something that automake ought to setup properly and corresponding to automake version, how to achieve the same in a more robust fashion?

Regards, Thomas

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