bitcoin/bitcoin — pull request #5232 by ENikS (2014-11-06 22:56:32+00:00)
Title: Compiler warning C4099: type name first seen using 'class' now seen using 'struct'

CExtPubKey: type name first seen using 'class' now seen using 'struct'

For more info see: http://msdn.microsoft.com/en-us/library/695x5bes.aspx