--- /dev/null
+diff -ur a/configure.ac b/configure.ac
+--- a/configure.ac 2011-10-31 19:40:02.000000000 +0100
++++ b/configure.ac 2011-10-31 19:41:02.372745481 +0100
+@@ -1624,7 +1624,6 @@
+ linux_alpha=yes
+ ;;
+ i*86|amd64*|x86_64*|ia64*)
+- linux_acpi="yes"
+ ;;
+ *)
+ ;;