Enable Pthread threading API on Solaris. Fix PR27677
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@268860 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/__config b/include/__config
index 5fbc646..bbddcbc 100644
--- a/include/__config
+++ b/include/__config
@@ -818,7 +818,8 @@
defined(__NetBSD__) || \
defined(__linux__) || \
defined(__APPLE__) || \
- defined(__CloudABI__)
+ defined(__CloudABI__) || \
+ defined(__sun__)
# define _LIBCPP_THREAD_API_PTHREAD
# else
# error "No thread API"