Looking for the commit of the PowerPC baseline change

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

Hello,

in 2016, the previous maintainer of the ppc64 port changed the default
baseline to a more generic target which disabled AltiVec [1].

Since we're running into issues [2] because of that change from time to time,
I'm actually looking for the specific commit that introduced that change,
but I cannot find it neither in src:gcc-XX nor in src:dpkg, most likely
because the changed happened before src:gcc-XX was move from SVN to Git.

Does anyone happen to remember where and when that change was made?

Thanks,
Adrian

> [1] https://lists.debian.org/debian-powerpc/2016/03/msg00073.html
> [2] https://github.com/kcat/openal-soft/issues/1067

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer
`. `'   Physicist
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913