http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47453
--- Comment #6 from __vic <d.v.a at ngs dot ru> 2011-08-02 03:25:10 UTC --- > > Why not say > > constexpr cond_variable() : cond PTHREAD_COND_INITIALIZER { } > What if PTHREAD_COND_INITIALIZER is a just scalar? > > You can define it as follows to make it work in both cases > > #define PTHREAD_COND_INITIALIZER {} I cannot define/redefine this value. It's already defined in system headers...