Rian Quinn 9e055be659 Fix compilation issues with Cygwin
Cygwin recently did an update that broken string_span again. The original update had to provide a custom strnlen function because Cygwin doesn't implement this (it's a non-std extension). We never added wchar_t support, and the Cygwin update now breaks on exactly this. This patch provides the missing wchar_t.
2016-09-28 10:00:47 -06:00
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2016-09-28 10:00:47 -06:00