diff options
Diffstat (limited to 'gcc/c-family/c-cppbuiltin.c')
| -rw-r--r-- | gcc/c-family/c-cppbuiltin.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/gcc/c-family/c-cppbuiltin.c b/gcc/c-family/c-cppbuiltin.c index 7229c59..8856a97 100644 --- a/gcc/c-family/c-cppbuiltin.c +++ b/gcc/c-family/c-cppbuiltin.c @@ -32,6 +32,7 @@ along with GCC; see the file COPYING3. If not see #include "debug.h" /* For dwarf2out_do_cfi_asm. */ #include "common/common-target.h" #include "cppbuiltin.h" +#include "configargs.h" #ifndef TARGET_OS_CPP_BUILTINS # define TARGET_OS_CPP_BUILTINS() @@ -1034,6 +1035,12 @@ c_cpp_builtins (cpp_reader *pfile) cpp_define (pfile, "__cpp_threadsafe_static_init=200806L"); if (flag_char8_t) cpp_define (pfile, "__cpp_char8_t=201811L"); +#ifndef THREAD_MODEL_SPEC + /* Targets that define THREAD_MODEL_SPEC need to define + __STDCPP_THREADS__ in their config/XXX/XXX-c.c themselves. */ + if (cxx_dialect >= cxx11 && strcmp (thread_model, "single") != 0) + cpp_define (pfile, "__STDCPP_THREADS__=1"); +#endif } /* Note that we define this for C as well, so that we know if __attribute__((cleanup)) will interface with EH. */ |