[PATCH] [libc++] Allow libc++ to be built on systems without POSIX threads
Jon Roelofs
jonathan at codesourcery.com
Sat May 31 07:43:30 PDT 2014
mclow, the motivation for this is for bare-metal systems where we don't have threads.
The other alternative would be to write no-op shims around all of these primitives, but that seems like it would be a lot of mess for very little benefit.
================
Comment at: sources/cxx-stl/llvm-libc++/libcxx/include/shared_mutex:419
@@ -416,1 +418,3 @@
+#endif // _LIBC_HAS_PTHREADS
+
----------------
line should read:
#endif // !_LIBCPP_SINGLE_THREADED
================
Comment at: sources/cxx-stl/llvm-libc++/libcxx/src/memory.cpp:175
@@ -174,3 +174,3 @@
-#endif // __has_feature(cxx_atomic)
+#endif // __has_feature(cxx_atomic) && LIBCPP_HAS_PTHREADS
----------------
line should read:
#endif // __has_feature(cxx_atomic) && !_LIBCPP_SINGLE_THREADED
http://reviews.llvm.org/D3969
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