Error on ppc64lel arch: invalid parameter combination for AltiVec intrinsic

[danstowell]

Hi, I'm cross-posting this from https://github.com/supercollider/supercollider/issues/1519 - on debian ppc64lel arch, we get a compile failure in nova-simd:

/«PKGBUILDDIR»/external_libraries/nova-simd/vec_altivec.hpp: In function 'nova::vec<float> nova::fast_reciprocal(const nova::vec<float>&)':
/«PKGBUILDDIR»/external_libraries/nova-simd/vec_altivec.hpp:287:43: error: invalid parameter combination for AltiVec intrinsic
     vector float estimate = vec_re(arg);

As shown in:

https://buildd.debian.org/status/fetch.php?pkg=supercollider&arch=ppc64el&ver=1%3A3.6.6~repack-2-1&stamp=1412444851