This is needed since libstdc++ uses pthread_once().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10360
91177308-0d34-0410-b5e6-
96231b3b80d8
--- /dev/null
+##===- runtime/GCCLibraries/libpthread/Makefile ------------*- Makefile -*-===##
+#
+# The LLVM Compiler Infrastructure
+#
+# This file was developed by the LLVM research group and is distributed under
+# the University of Illinois Open Source License. See LICENSE.TXT for details.
+#
+##===----------------------------------------------------------------------===##
+LEVEL = ../../..
+BYTECODE_LIBRARY=1
+DONT_BUILD_RELINKED=1
+LIBRARYNAME=pthread
+
+include $(LEVEL)/Makefile.common
--- /dev/null
+#include <pthread.h>
+
+int
+pthread_once (pthread_once_t * control, void (*func) (void))
+{
+ return 0;
+}
+