Help with porting FreeCAD

[Chris H]

On Tue, 06 Jan 2015 23:49:41 +0100 Andrea Venturoli <ml at netfence.it> wrote

> On 01/06/15 23:41, Chris H wrote:
> > On Tue, 06 Jan 2015 23:12:48 +0100 Andrea Venturoli <ml at netfence.it> wrote
> >
> >> Hello.
> >>
> >> A while ago I dirty-ported FreeCAD 0.14 and more or less got it working.
> >> Now it won't work anymore due to incompatible changes in OpenCASCADE
> >> (which is a dependency); so I'm trying 0.15 (which is still a beta).
> >>
> >> The box I'm using runs 9.3 and I'm facing a problem I'm too
> >> inexperienced about the port system to solve:
> >>
> >> _ g++ 4.9 seems to be needed (previous versions having an unsolved bug),
> >> so I put "USE_GCC=4.9";
> >> _ however, fortran is required and "USES=fortran:gcc" picks up gfortran48;
> >> _ so in the link stage "-L/usr/local/lib/gcc48" comes before
> >> "-L/usr/local/lib/gcc49" and I get unresolved symbols.
> >>
> >> Is there a way I can tell the port system to pick gfortran49 instead of
> >> gfortran48 and forget about "-L/usr/local/lib/gcc48"?
> >> Of course I could try uninstalling gcc-4.8.4, but this is unfortunately
> >> a run dependency of several other ports.
> > I think what you're looking for here is
> > BUILD_DEPENDS=
> > and
> > RUN_DEPENDS=
> 
> Thanks, but, sorry, I don't quite get your suggestion.
> What should I put into those variables?
> How would that solve the above problem?
Sure. OK.
Maybe something along the lines of:

BUILD_DEPENDS+=	${PREFIX}/bin/gcc49:${PORTSDIR}/lang/gcc49

Also, regarding your USE_GCC
you would do well to choose:
USE_GCC=	4.9+
which says: Must use gcc49, or greater.

All the best.

--Chris
> 
>   bye & Thanks
>     av.
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