[Freewx-maint] Bug#758165: debian bug #755361: saga FTBS on arm*

[Olly Betts]

On Sun, Aug 03, 2014 at 08:10:09PM +0200, Johan Van de Wauw wrote:
> I am the maintainer of Saga GIS in debian. This package fails to build
> from source on arm/armel architectures as detailed in:
> 
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755361
> 
> | /usr/lib/arm-linux-gnueabi/libwx_gtk2u_propgrid-3.0.so: undefined
> reference to `wxCommandEvent::Clone() const'
> | collect2: error: ld returned 1 exit status
> | make[6]: *** [saga_gui] Error 1
> | Makefile:756: recipe for target 'saga_gui' failed
> | make[6]: Leaving directory
> '/?BUILDDIR?/saga-2.1.2+dfsg/src/saga_core/saga_gui'
> 
> Since building works fine on other architectures and the error is an
> undefined reference within one of wx libs I suppose the error is
> actually in wx rather than in saga.
> 
> Is this a known problem?

This sounds like the same underlying issue:

https://bugs.debian.org/758165

Unfortunately, we've yet to get to the bottom of that one.

There's an issue with devirtualisation in GCC 4.9 which wx3 triggers,
which may be connected:

https://bugs.debian.org/752733

That affects wxCommandEvent::Clone() - we have a workaround patch applied,
but perhaps it doesn't work on armel.

Cheers,
    Olly