use cmake variables
diff --git a/dynamicEDT3D/CMakeLists.txt b/dynamicEDT3D/CMakeLists.txt
index 7edfdde..14bdf49 100644
--- a/dynamicEDT3D/CMakeLists.txt
+++ b/dynamicEDT3D/CMakeLists.txt
@@ -46,9 +46,9 @@ LINK_DIRECTORIES(${CMAKE_LIBRARY_OUTPUT_DIRECTORY})
 # Installation
 
 set(INSTALL_TARGETS_DEFAULT_ARGS
-	RUNTIME DESTINATION bin
-	LIBRARY DESTINATION lib
-	ARCHIVE DESTINATION lib
+	RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
+	LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
+	ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
 )
 
 find_package(octomap REQUIRED