gcc5 C++11 ABI rebuilds and FTBFS packages

[Jonathan Wakely]

On 18/05/15 13:39 +0100, Jonathan Wakely wrote:
>On 04/05/15 13:09 +0200, Kalev Lember wrote:
>>lyx:           http://koji.fedoraproject.org/koji/taskinfo?taskID=9651160
>
>It looks like LyX forward-declares std::basic_string, which is (1)
>undefined behaviour and (2) not going to work now that std::string is
>really defined as std::__cxx11::basic_string.
>
>This should be fixed upstream.

Suggested fix:

--- src/support/strfwd.h.orig   2015-05-18 13:41:25.847007324 +0100
+++ src/support/strfwd.h        2015-05-18 13:41:49.892072937 +0100
@@ -36,8 +36,8 @@
 
 #endif
 
-// Forward definitions do not work with libc++
-#ifdef  _LIBCPP_VERSION
+// Forward definitions do not work with libc++ or GCC5
+#if defined(_LIBCPP_VERSION) || __GNUC__ >= 5
 #include <string>
 #else