FreeBSD/ports 80c5b9b (r509607)lang/gcc8/files patch-clang-vec_step

clang on rs6000/powerpc* unfortunately poisons user namespace by default
(without any special options or include files being required).

Until that changes (or GCC changes) we need to avoid using vec_step as a
variable name.

PR:             239266
DeltaFile
+21-0lang/gcc8/files/patch-clang-vec_step
+21-01 files

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