diff --git a/compiler-include/stdatomic.h b/compiler-include/stdatomic.h
index e03798766..6e08d0e84 100644
--- a/compiler-include/stdatomic.h
+++ b/compiler-include/stdatomic.h
@@ -27,8 +27,8 @@
 /* If we're hosted, fall back to the system's stdatomic.h. FreeBSD, for
  * example, already has a Clang-compatible stdatomic.h header.
  */
-#if __STDC_HOSTED__ && __has_include_next(<stdatomic.h>)
-# include_next <stdatomic.h>
+#ifdef __STDC_NO_ATOMICS__
+
 #else
 
 #include <stddef.h>
diff --git a/src/external/libpthread b/src/external/libpthread
index e6dded6c6..8bef25f80 160000
--- a/src/external/libpthread
+++ b/src/external/libpthread
@@ -1 +1 @@
-Subproject commit e6dded6c6e9bb466494bb741a4b5c68d7c943af9
+Subproject commit 8bef25f80ce588fcdbc9a942aa262f6ea6cd6b43