mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-03 21:51:45 +08:00
1d9a8675d3
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. 2020-11-13 Jakub Jelinek <jakub@redhat.com> PR c++/63287 * 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".
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.