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svn:author
V 6
gerald
K 8
svn:date
V 27
2019-11-22T00:54:35.757651Z
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svn:log
V 353
Forward port r509607 | gerald | 2019-08-22 from lang/gcc8 since this has
not been addressed upstream yet:

  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

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