Re: gcc-4.8/c++ threads, please

["Kai-Uwe Eckhardt" <kuehro%gmx.de@localhost>]

> /archive/foreign/supercollider/common/SC_Lock.h:31:12: error: ‘std::mutex’ 
> has 
> not been declared
>  using std::mutex;

A small test program with std::mutex works with lang/gcc48 but not with
gcc from 6.99.40 [4.8.3 (NetBSD nb2 20140304)]. 


> /archive/foreign/supercollider/common/SC_Lock.h:32:12: error: 
> ‘std::timed_mutex’ has not been declared
> using std::timed_mutex;

g++ needs pthread_mutex_timedlock for this, which is missing on NetBSD (PR 
48407).
Clang uses an internal substitution judging from looking at the source
(cannot test this because lang/clang is broken on NetBSD without libc++).