cannot be compiled with SSE2

[bmwiedemann]

While working on reproducible builds for openSUSE, I found that liquid-dsp (commit 4c9a751) cannot be compiled with SSE2

src/dotprod/src/dotprod_cccf.mmx.c line 49
includes and uses pmmintrin.h even when no SSE3 support is available or desired, leading to compilation errors

In file included from src/dotprod/src/dotprod_cccf.mmx.c:49:
/usr/lib64/gcc/x86_64-suse-linux/8/include/pmmintrin.h:50:1: error: inlining failed in call to always_inline '_mm_addsub_ps': target specific option mismatch
 _mm_addsub_ps (__m128 __X, __m128 __Y)
 ^~~~~~~~~~~~~
src/dotprod/src/dotprod_cccf.mmx.c:255:13: note: called from here
          s = _mm_addsub_ps( ci, cq );

[bmwiedemann]

ping. Can you reproduce this? Anything else I can help?

[fsheikh]

Yeah I could also see this with a force compilation for SSE2 on x86/Ubunut 16.04. Fix patch underway