diff -r 8e8313e40f8a -r 188d58cfe7cf configure.ac
--- a/configure.ac	Tue Jan 17 00:37:59 2012 +0100
+++ b/configure.ac	Mon Jan 16 23:45:16 2012 +0100
@@ -52,8 +52,8 @@
     [ACX_SET_KCONFIG_OPTION],
     [AS_IF(
         [test -n "$$1"],
-        [kconfig_options="$kconfig_options $1=y"],
-        [kconfig_options="$kconfig_options $1"])
+        [kconfig_options="$kconfig_options has_$1=y"],
+        [kconfig_options="$kconfig_options has_$1"])
     ])
 
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