Index: libs/thread/src/pthread/once.cpp
===================================================================
--- libs/thread/src/pthread/once.cpp	(revision 57917)
+++ libs/thread/src/pthread/once.cpp	(working copy)
@@ -9,6 +9,14 @@
 #include <pthread.h>
 #include <stdlib.h>
 
+#ifndef UINTMAX_C
+#ifdef BOOST_HAS_STDINT_H
+#include <stdint.h>
+#else
+#error "Boost threads require stdint.h header"
+#endif
+#endif
+
 namespace boost
 {
     namespace detail