https://github.com/MirServer/wlcs/pull/193

diff --git a/cmake/FindGtestGmock.cmake b/cmake/FindGtestGmock.cmake
index 230d988..34c514a 100644
--- a/cmake/FindGtestGmock.cmake
+++ b/cmake/FindGtestGmock.cmake
@@ -63,6 +63,9 @@ if (EXISTS ${GMOCK_SOURCE})
 else()
     # Assume gmock is no longer source, we'll find out soon enough if that's wrong
     add_custom_target(GMock)
+    if (NOT DEFINED GTEST_LIBRARY)
+        set(GTEST_LIBRARY ${GTEST_LIBRARIES})
+    endif()
     string(REPLACE gtest gmock GMOCK_LIBRARY ${GTEST_LIBRARY})
 endif()