Index: unittests/Support/DynamicLibrary/CMakeLists.txt
===================================================================
--- unittests/Support/DynamicLibrary/CMakeLists.txt
+++ unittests/Support/DynamicLibrary/CMakeLists.txt
@@ -1,7 +1,9 @@
 set(LLVM_LINK_COMPONENTS Support)
 
-add_llvm_unittest(DynamicLibraryTests DynamicLibraryTest.cpp)
+add_library(DynamicLibraryLib STATIC DynamicLibraryLib.cxx)
 
+add_llvm_unittest(DynamicLibraryTests DynamicLibraryTest.cpp)
+target_link_libraries(DynamicLibraryTests DynamicLibraryLib)
 export_executable_symbols(DynamicLibraryTests)
 
 add_library(PipSqueak SHARED PipSqueak.cxx)
Index: unittests/Support/DynamicLibrary/DynamicLibraryLib.cxx
===================================================================
--- /dev/null
+++ unittests/Support/DynamicLibrary/DynamicLibraryLib.cxx
@@ -0,0 +1,12 @@
+//===- llvm/unittest/Support/DynamicLibrary/DynamicLibraryLib.cpp ---------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "PipSqueak.h"
+
+extern "C" PIPSQUEAK_EXPORT const char *TestA() { return "ProcessCall"; }
Index: unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
===================================================================
--- unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
+++ unittests/Support/DynamicLibrary/DynamicLibraryTest.cpp
@@ -20,7 +20,7 @@
 using namespace llvm;
 using namespace llvm::sys;
 
-extern "C" PIPSQUEAK_EXPORT const char *TestA() { return "ProcessCall"; }
+extern "C" PIPSQUEAK_EXPORT const char *TestA();
 
 std::string LibPath() {
   const std::vector<testing::internal::string>& Argvs = testing::internal::GetArgvs();