+# ------------------------------------------------------------------------------
+# GUdev - libudev gobject interface
+# ------------------------------------------------------------------------------
+AC_ARG_ENABLE([gudev],
+ AS_HELP_STRING([--disable-gudev], [disable Gobject libudev support @<:@default=enabled@:>@]),
+ [], [enable_gudev=yes])
+AS_IF([test "x$enable_gudev" = "xyes"], [ PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.22.0 gobject-2.0 >= 2.22.0]) ])
+
+AC_ARG_ENABLE([introspection],
+ AS_HELP_STRING([--disable-introspection], [disable GObject introspection @<:@default=enabled@:>@]),
+ [], [enable_introspection=yes])
+AS_IF([test "x$enable_introspection" = "xyes"], [
+ PKG_CHECK_MODULES([INTROSPECTION], [gobject-introspection-1.0 >= 0.6.2])
+ AC_DEFINE([ENABLE_INTROSPECTION], [1], [enable GObject introspection support])
+ AC_SUBST([G_IR_SCANNER], [$($PKG_CONFIG --variable=g_ir_scanner gobject-introspection-1.0)])
+ AC_SUBST([G_IR_COMPILER], [$($PKG_CONFIG --variable=g_ir_compiler gobject-introspection-1.0)])
+ AC_SUBST([G_IR_GENERATE], [$($PKG_CONFIG --variable=g_ir_generate gobject-introspection-1.0)])
+ AC_SUBST([GIRDIR], [$($PKG_CONFIG --define-variable=datadir=${datadir} --variable=girdir gobject-introspection-1.0)])
+ AC_SUBST([GIRTYPELIBDIR], [$($PKG_CONFIG --define-variable=libdir=${libdir} --variable=typelibdir gobject-introspection-1.0)])
+])
+AM_CONDITIONAL([ENABLE_INTROSPECTION], [test "x$enable_introspection" = "xyes"])
+AM_CONDITIONAL([ENABLE_GUDEV], [test "x$enable_gudev" = "xyes"])
+
+# ------------------------------------------------------------------------------
+# keymap - map custom hardware's multimedia keys
+# ------------------------------------------------------------------------------
+AC_ARG_ENABLE([keymap],
+ AS_HELP_STRING([--disable-keymap], [disable keymap fixup support @<:@default=enabled@:>@]),
+ [], [enable_keymap=yes])
+AS_IF([test "x$enable_keymap" = "xyes"], [