https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69406
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- Author: redi Date: Thu Jan 21 13:33:27 2016 New Revision: 232672 URL: https://gcc.gnu.org/viewcvs?rev=232672&root=gcc&view=rev Log: libstdc++/69406 Fix test to check for supported headers PR libstdc++/69406 * include/bits/cpp_type_traits.h: Ensure C++ language linkage. * include/ext/type_traits.h: Likewise. * testsuite/17_intro/headers/c++2011/linkage.cc: Check autoconf macros for presence of C headers. * testsuite/ext/type_traits/add_unsigned_floating_neg.cc: Adjust dg-error line number. * testsuite/ext/type_traits/add_unsigned_integer_neg.cc: Likewise. * testsuite/ext/type_traits/remove_unsigned_floating_neg.cc: Likewise. * testsuite/ext/type_traits/remove_unsigned_integer_neg.cc: Likewise. Modified: trunk/libstdc++-v3/ChangeLog trunk/libstdc++-v3/include/bits/cpp_type_traits.h trunk/libstdc++-v3/include/ext/type_traits.h trunk/libstdc++-v3/testsuite/17_intro/headers/c++2011/linkage.cc trunk/libstdc++-v3/testsuite/ext/type_traits/add_unsigned_floating_neg.cc trunk/libstdc++-v3/testsuite/ext/type_traits/add_unsigned_integer_neg.cc trunk/libstdc++-v3/testsuite/ext/type_traits/remove_unsigned_floating_neg.cc trunk/libstdc++-v3/testsuite/ext/type_traits/remove_unsigned_integer_neg.cc