Re: Bug#1115385: vlc: FTBFS on powerpc architecture

[Jeroen Diederen <jjhdiederen@zonnet.nl>]

You should try to build it in a ppc64el chroot. I think it will fail 
because of altivec. The previous versions of vlc for ppc64el were built 
without altivec enabled, or am I wrong?

Jeroen

John Paul Adrian Glaubitz schreef op 2025-09-17 16:40:
> Control: tags -1 +patch
>
> Hello,
>
> On Tue, 2025-09-16 at 16:52 +0700, Jeroen Diederen wrote:
> > diff -Nru vlc-3.0.21/debian/rules vlc-3.0.21/debian/rules
> > --- vlc-3.0.21/debian/rules	2025-09-15 21:50:45.000000000 +0700
> > +++ vlc-3.0.21/debian/rules	2025-08-23 20:15:15.000000000 +0700
> > @@ -250,10 +250,13 @@
> >  removeplugins += neon
> >  endif
> >
> > -# PowerPC build fo e5500 with altivec disabled
> > +# PowerPC specific optimizations (excluding powerpcspe)
> > +ifeq (,$(filter-out powerpc,$(DEB_HOST_ARCH_CPU))$(filter 
> > powerpcspe,$(DEB_HOST_ARCH)))
> > +confflags += --enable-altivec
> > +else
> >  confflags += --disable-altivec
> >  removeplugins += altivec
> > -
> > +endif
> >
> >  # PowerPCSPE specific optimizations
> >  ifeq (,$(filter-out powerpcspe,$(DEB_HOST_ARCH)))
>
> I suggest the following alternative patch which also enables AltiVec on 
> ppc64el:
>
> --- debian/rules.orig   2025-08-23 15:15:15.000000000 +0200
> +++ debian/rules        2025-09-17 11:35:04.464027648 +0200
> @@ -250,8 +250,9 @@
>  removeplugins += neon
>  endif
>
> -# PowerPC specific optimizations (excluding powerpcspe)
> -ifeq (,$(filter-out powerpc,$(DEB_HOST_ARCH_CPU))$(filter 
> powerpcspe,$(DEB_HOST_ARCH)))
> +# PowerPC specific optimizations
> +# AltiVec is currently disabled on powerpc and ppc64
> +ifeq (,$(filter-out ppc64el,$(DEB_HOST_ARCH_CPU))
>  confflags += --enable-altivec
>  else
>  confflags += --disable-altivec
>
> I have not tested this patch though. I will do that later.
>
> Thanks,
> Adrian