djowel/spirit_x3 — pull request #4 by jktjkt (2013-10-20 11:05:38+00:00)
Title: Add an explicit attribute collapsing specialization for two unused_types

The test case is trying to ignore the attribute of the CRLF rule. Without the
patch to make_attribute.hpp, the compiler doesn't know which of the
specializations to use, and the build fails.