Re: [PATCHES] Add vsearch.

[ludo@gnu.org (Ludovic Courtès)]

Vsearch fails to build on platforms other than x86_64 (see
<http://hydra.gnu.org/build/703292/nixlog/2/raw>):

--8<---------------cut here---------------start------------->8---
In file included from /gnu/store/r0p8d0a3n2zlkj1l5a9xv368yhbgc5bh-gcc-4.9.3-lib/lib/gcc/i686-unknown-linux-gnu/4.9.3/include/xmmintrin.h:1258:0,
                 from /gnu/store/r0p8d0a3n2zlkj1l5a9xv368yhbgc5bh-gcc-4.9.3-lib/lib/gcc/i686-unknown-linux-gnu/4.9.3/include/x86intrin.h:31,
                 from vsearch.h:69,
                 from align_simd.cc:61:
/gnu/store/r0p8d0a3n2zlkj1l5a9xv368yhbgc5bh-gcc-4.9.3-lib/lib/gcc/i686-unknown-linux-gnu/4.9.3/include/emmintrin.h:686:1: error: inlining failed in call to always_inline ‘__m128i _mm_load_si128(const __m128i*)’: target specific option mismatch
 _mm_load_si128 (__m128i const *__P)
 ^
align_simd.cc:204:71: error: called from here
       xmm1  = _mm_load_si128((__m128i*)(score_matrix_word + d[1] + i));
--8<---------------cut here---------------end--------------->8---

My impression is that the code unconditionally uses SSE, meaning that it
works only on x86_64.

Could you investigate a bit?  If that is the case, could you send a
patch that adds:

  (supported-platforms '("x86_64-linux"))

with a comment explaining why?

TIA,
Ludo’.