K 10
svn:author
V 2
br
K 8
svn:date
V 27
2018-10-01T16:16:05.639828Z
K 7
svn:log
V 231
Fix build with GCC 8.1.

GCC 8.1 failed to build LLVM's libc++ when -Wshadow is set,
so lower down WARNS flag to 3.

This is similar to dtc(1) which uses libc++ and sets WARNS to 3.

Approved by:	re (gjb)
Sponsored by:	DARPA, AFRL

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