[gccsdk] Failed to build libsdl-mixer on cygwin

[Peter Naulls]

Alan Buckley wrote:
> I've been trying to rebuild libsdl-mixer1.2 on Cygwin and
> it is now failing with:
>  
> Autobuilder: Debian patch: -p1
> Autobuilder: Patch "debian/patches/-p1.dpatch" not found
> Package libsdl-mixer1.2: ***Failure***
> Build for package "libsdl-mixer1.2" failed
>  
> I've tracked it down to how it is applying the patch in
> the build-program script. If is getting the list of patches
> from the debian/patches/series file and it contains
> entries like:
> 

I have put in a simple work-around.  There's no certainty
that this will be 100% correct, so I might have to revisit
this to do it properly in future.