diff -ru org/cmake-3.4.0/Modules/CMakeCCompilerId.c.in new/cmake-3.4.0/Modules/CMakeCCompilerId.c.in
--- org/cmake-3.4.0/Modules/CMakeCCompilerId.c.in	2015-11-14 15:18:33.042546309 +0000
+++ new/cmake-3.4.0/Modules/CMakeCCompilerId.c.in	2015-11-14 15:19:31.110953087 +0000
@@ -55,6 +55,7 @@
 #ifdef SIMULATE_VERSION_MAJOR
   require += info_simulate_version[argc];
 #endif
+  require += info_language_dialect_default[argc];
   (void)argv;
   return require;
 }
diff -ru org/cmake-3.4.0/Modules/CMakeCXXCompilerId.cpp.in new/cmake-3.4.0/Modules/CMakeCXXCompilerId.cpp.in
--- org/cmake-3.4.0/Modules/CMakeCXXCompilerId.cpp.in	2015-11-14 15:18:15.561326954 +0000
+++ new/cmake-3.4.0/Modules/CMakeCXXCompilerId.cpp.in	2015-11-14 15:19:52.781985261 +0000
@@ -49,6 +49,7 @@
 #ifdef SIMULATE_VERSION_MAJOR
   require += info_simulate_version[argc];
 #endif
+  require += info_language_dialect_default[argc];
   (void)argv;
   return require;
 }