[Bug target/24012] [4.9/5/6 regression] #define _POSIX_C_SOURCE breaks #include <iostream>

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24012

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|5.4                         |7.0

--- Comment #18 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The (fairly large) changes needed to fix this didn't happen for gcc 5, or gcc6,
adjusting target milestone.