JuliaLang/libuv — pull request #22 by ihnorton (2014-03-02 17:13:55+00:00)
Title: Work-around for unsupported volume info query

Wine does not currently support FileFsVolumeInformation:

https://github.com/mirrors/wine/blob/0e42fd97c05beb50c0788164647631c00485623b/dlls/ntdll/file.c#L2679

so check io_status and fallback to previous behavior if not implemented