[Bug c++/50258] [C++0x] -std=gnu++0x should allow in-class initialization of static const floating types without constexpr

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50258

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-09-01 
11:51:36 UTC ---
That extension has been deprecated for years:
http://gcc.gnu.org/onlinedocs/gcc/Deprecated-Features.html