https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68353
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Sun Nov 15 11:15:08 2015 New Revision: 230395 URL: https://gcc.gnu.org/viewcvs?rev=230395&root=gcc&view=rev Log: PR libstdc++/68353 fix _GLIBCXX_USE_C99_WCHAR test PR libstdc++/68353 * include/bits/basic_string.h: Test value of _GLIBCXX_USE_C99_WCHAR not whether it is defined. * include/ext/vstring.h: Likewise. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/basic_string.h trunk/libstdc++-v3/include/ext/vstring.h