K 10
svn:author
V 8
bdrewery
K 8
svn:date
V 27
2017-02-18T00:08:13.872725Z
K 7
svn:log
V 221
xdev: Fix after libc++ update in r300873.

The xdev build needed the same fixes as libcompat and external toolchain
support needed for handling of --sysroot, -L, -B, etc.

MFC after:	2 weeks
Sponsored by:	Dell EMC Isilon

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