espositofulvio added inline comments. ================ Comment at: include/__config:742 @@ +741,3 @@ +#ifndef _LIBCPP_HAS_NO_THREADS +# if defined(__FreeBSD__) || \ + defined(__NetBSD__) || \ ---------------- jroelofs wrote: > jroelofs wrote: > > @espositofulvio: @ed meant this: > > > > ``` > > #ifndef _WIN32 > > # include <unistd.h> > > # if _POSIX_THREADS > 0 > > ... > > # endif > > #endif > > ``` > > > > Which //is// the correct way to test for this. > That being said, there have been discussions before about whether or not we > should #include <unistd.h> in <__config>, with the conclusion being that we > shouldn't. > > It would be better if this were a CMake configure-time check that sets > _LIBCPP_THREAD_API, rather than these build-time guards. Tried adding that as configure time checks, but then libcxxabi fails to compile because of the guard in __config to check that _LIBCPP_THREAD_API has beed defined when _LIBCPP_HAS_NO_THREADS is not.
As a side note: Is Windows the only OS which hasn't got unistd.h? Repository: rL LLVM http://reviews.llvm.org/D11781 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
