--- /dev/null
+--- cmake-2.8.12.2/Modules/FindRuby.cmake~ 2014-08-26 22:03:46.000000000 +0200
++++ cmake-2.8.12.2/Modules/FindRuby.cmake 2014-08-26 22:05:53.115892137 +0200
+@@ -170,6 +170,7 @@
+ find_path(RUBY_CONFIG_INCLUDE_DIR
+ NAMES ruby/config.h config.h
+ HINTS
++ ${RUBY_HDR_DIR}
+ ${RUBY_HDR_DIR}/${RUBY_ARCH}
+ ${RUBY_ARCH_DIR}
+ )