boostorg/regex — pull request #1 by pabigot (2014-01-05 04:12:43+00:00)
Title: fix trac 9544: gcc 4.9.0 -std=c++1y breakage

This is GCC bug PR C++/59681 but the Boost fix is trivial and the GCC
one is (probably) not.

See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59681