fix linker error by reordering link libraries

test/CMakeLists.txt

@@ -4,5 +4,5 @@ target_link_libraries(benchmark_test benchmark ${CMAKE_THREAD_LIBS_INIT})
 
 # Test harness for regex wrapper
 add_executable(re_test ${RE_FILES} "re_test.cc")
-target_link_libraries(re_test benchmark_re ${CMAKE_THREAD_LIBS_INIT} gtest gtest_main)
+target_link_libraries(re_test benchmark_re gtest gtest_main ${CMAKE_THREAD_LIBS_INIT})
 add_test(regex re_test)