On 11/13/20 10:29 AM, Jakub Jelinek via Gcc-patches wrote: > Hi! > > The following patch predefines __STDCPP_THREADS__ macro to 1 if c++11 or > later and thread model (e.g. printed by gcc -v) is not single. > There are two targets not handled by this patch, those that define > THREAD_MODEL_SPEC. In one case - QNX - it looks just like a mistake > to me, instead of setting thread_model=posix in config.gcc it uses > THREAD_MODEL_SPEC macro to set it unconditionally to posix. > The other is hpux10, which uses -threads option to decide if threads > are enabled or not, but that option isn't really passed to the compiler. > I think that is something that really should be solved in config/pa/ > instead, e.g. in the config/xxx/xxx-c.c targets usually set their own > predefined macros and it could handle this, and either pass the option > also to the compiler, or say predefine __STDCPP_THREADS__ if _DCE_THREADS > macro is defined already (or -D_DCE_THREADS found on the command line), > or whatever else. > > Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk? > > 2020-11-13 Jakub Jelinek <ja...@redhat.com> > > * c-cppbuiltin.c: Include configargs.h. > (c_cpp_builtins): For C++11 and later if THREAD_MODEL_SPEC is not > defined, predefine __STDCPP_THREADS__ to 1 unless thread_model is > "single".
OK. Note that hpux10 should be considered long dead. I wouldn't let that get in the way of anything. One could argue we should remove hpux10 and earlier, leaving just hpux11. Jeff
