$OpenBSD: patch-include_platform_aclinux_h,v 1.1 2011/04/05 08:02:25 sthen Exp $
--- include/platform/aclinux.h.orig	Wed Mar 16 16:28:21 2011
+++ include/platform/aclinux.h	Mon Apr  4 23:43:49 2011
@@ -122,6 +122,10 @@
 #define ACPI_USE_DO_WHILE_0
 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 
+#ifdef __OpenBSD__
+#define ACPI_USE_ALTERNATE_TIMEOUT
+#endif
+
 
 #ifdef __KERNEL__
 
