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Date: Wed, 4 Dec 2013 14:13:00 +0100 (CET)
From: Gerald Pfeifer <gerald@pfeifer.com>
To: William Grzybowski <william88@gmail.com>
Subject: Re: python packages struggling with GCC 4.7
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On Wed, 4 Dec 2013, William Grzybowski wrote:
> The main reason foe the python failures, if not all, is math/p-numpy.
> It is compiling just fine, but the package is not working:
> 
> ImportError: /lib/libgcc_s.so.1: version GCC_4.6.0 required by
> /usr/local/lib/gcc47/libgfortran.so.3 not found
> 
> Looks like it is linking to /lib/libgcc_s.so.1 and should use
> /usr/local/lib/gcc47/libgcc_s.so.1, am I right?

#1, you rock.

#2, you are right.  Is it possible that math/p-numpy fails to use LDFLAGS 
which would have added -Wl,rpath=/usr/local/lib/gcc47/libgcc_s.so.1 when
linking?

Or is it a question of getting the order of the dynamic library search
paths right?  Unfortunately I am far from an expert in this area (and
having two libraries with the same version, one of which is a superset,
is tricky).

(Why is this not happening when building with lang/gcc being GCC 4.6 or
lang/gcc46, though?  That puzzles me.  Also, if this were a general issue,
wouldn't all ports using Fortran be affected?)

Can you somehow fix this in/for math/p-numpy?

Gerald