option(disable_java "This variable set the java context." ON)
option(disable_gtnets "This variable set the gtnets context." ON)
option(disable_lua "This variable set lua use." ON)
-option(disable_ruby "This variable set ruby use." ON)
+option(disable_ruby "This variable set ruby use." OFF)
option(enable_compile_warnings "" OFF)
option(enable_compile_optimizations "" OFF)