The same file has another instance of the same problem (which compiles
with G++ in all modes, but Clang rejects in c++98 mode).
Tested x86_64-linux, committed to trunk.
commit 7cf52d6430d73c412f5205098c6cfe0ce7a3d0d5
Author: Jonathan Wakely
Date: Thu Feb 26 13:31:48 2015 +
PR libstdc
Tested powerpc64-linux, committed to trunk.
commit 922a84d1db99455f6d8900453ea5615f93b124f1
Author: Jonathan Wakely
Date: Sun Dec 21 13:54:39 2014 +
PR libstdc++/64367
* include/std/stdexcept: Don't use non-static member in sizeof.
diff --git a/libstdc++-v3/include/std/stdexce
