Index: SingleSource/UnitTests/C++11/CMakeLists.txt
===================================================================
--- SingleSource/UnitTests/C++11/CMakeLists.txt
+++ SingleSource/UnitTests/C++11/CMakeLists.txt
@@ -1,3 +1,3 @@
 list(APPEND CXXFLAGS -std=c++11 -pthread)
-list(APPEND LDFLAGS -lstdc++ -pthread)
+list(APPEND LDFLAGS -lstdc++ -pthread -Wl,--whole-archive -lpthread -Wl,--no-whole-archive)
 llvm_singlesource()
Index: SingleSource/UnitTests/C++11/Makefile
===================================================================
--- SingleSource/UnitTests/C++11/Makefile
+++ SingleSource/UnitTests/C++11/Makefile
@@ -8,5 +8,5 @@
 PROGRAMS_TO_SKIP += stdthreadbug
 endif
 
-LDFLAGS += -lstdc++ -pthread
+LDFLAGS += -lstdc++ -pthread -Wl,--whole-archive -lpthread -Wl,--no-whole-archive
 include $(LEVEL)/SingleSource/Makefile.singlesrc