--- CMakeLists.txt.orig
+++ CMakeLists.txt
@@ -177,6 +177,9 @@
 ########################################################################
 # Install cmake search helper for this library
 ########################################################################
-install(FILES cmake/Modules/mapperConfig.cmake        
-    DESTINATION lib${LIB_SUFFIX}/cmake/mapper
+if(NOT CMAKE_MODULES_DIR)
+    set(CMAKE_MODULES_DIR lib${LIB_SUFFIX}/cmake)
+endif()
+install(FILES cmake/Modules/mapperConfig.cmake
+    DESTINATION ${CMAKE_MODULES_DIR}/mapper
 )