[MacPorts] #37979: gnuradio: VOLK component suggests compiling with gcc

[MacPorts]

#37979: gnuradio: VOLK component suggests compiling with gcc
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  Reporter:  macsforever2000@…  |      Owner:  michaelld@…
      Type:  enhancement        |     Status:  new
  Priority:  Low                |  Milestone:
 Component:  ports              |    Version:
Resolution:                     |   Keywords:
      Port:  gnuradio           |
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Comment (by michaelld@…):

 If VOLK does not detect SSE![1/2/3/4], AVX, Neon, Altivec, or whatever
 SIMD instructions during configuration, then internally it will not
 compile kernels handling those instructions for the algorithms it
 encompasses (e.g., FIR filter). There is always a "generic" kernel, and if
 +orc is selected then ORC can be used as a kernel (which are not generally
 as good as GR's kernels, but anything is much better than generic). So,
 really, it's not such a big deal no matter which compiler is used. But,
 using Apple's GCC 4.2 is, right now, the optimal way to go until the GR
 folks get support for clang in place.  If there is any change I would put
 in place is to just specify using this specific compiler; not +gccXY or
 +clangAB or whatnot.

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Ticket URL: <https://trac.macports.org/ticket/37979#comment:4>
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