[WebAssembly] WASI support for libcxx
This adds explicit support for the WASI platform to libcxx.
WASI libc uses some components from musl, however it's not fully compatible
with musl, so we're planning to stop using _LIBCPP_HAS_MUSL_LIBC and
customize for WASI libc specifically.
Differential Revision: https://reviews.llvm.org/D61336
Reviewers: sbc100, ldionne
llvm-svn: 359703
Cr-Mirrored-From: sso://chromium.googlesource.com/_direct/external/github.com/llvm/llvm-project
Cr-Mirrored-Commit: 3efd6e37e4b794f38a9f9d2403e48b3f4f88e2ae
diff --git a/src/thread.cpp b/src/thread.cpp
index bc5dfb2..29b06fd 100644
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -23,9 +23,9 @@
# endif
#endif // defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
-#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__CloudABI__) || defined(__Fuchsia__)
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__CloudABI__) || defined(__Fuchsia__) || defined(__wasi__)
# include <unistd.h>
-#endif // defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__CloudABI__) || defined(__Fuchsia__)
+#endif // defined(__unix__) || (defined(__APPLE__) && defined(__MACH__)) || defined(__CloudABI__) || defined(__Fuchsia__) || defined(__wasi__)
#if defined(__NetBSD__)
#pragma weak pthread_create // Do not create libpthread dependency