[Bug c++/53843] Macros following string literals don't expand in C++11 mode

[joseph.h.garvin at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53843

--- Comment #1 from Joseph Garvin <joseph.h.garvin at gmail dot com> 2012-07-03 19:56:28 UTC ---
Forgot to mention inserting a space between "x" and bar fixes the error.