--- scanmem-0.13/configure.ac
+++ scanmem-0.13/configure.ac
@@ -108,16 +108,17 @@
                 test/Makefile
                 ])
 
-AC_ARG_ENABLE(gui, [AS_HELP_STRING([--enable-gui],
-                            [enable gameconqueror, the gui front-end of scanmem])],
-                 [enable_gui=true
-                  AC_CONFIG_FILES([
-                 gui/Makefile
-                 gui/consts.py
-                 gui/gameconqueror
-                 ])],
-                 [enable_gui=false]
-                 )
+AC_ARG_ENABLE([gui],
+	AS_HELP_STRING([--enable-gui],
+		[enable gameconqueror, the gui front-end of scanmem]))
 
-AM_CONDITIONAL([ENABLE_GUI], [test x$enable_gui = xtrue])
+AS_IF([test "x$enable_gui" = "xyes"], [
+	AC_CONFIG_FILES([
+		gui/Makefile
+		gui/consts.py
+		gui/gameconqueror
+	])
+])
+
+AM_CONDITIONAL([ENABLE_GUI], [test "x$enable_gui" = "xyes"])
 AC_OUTPUT