$OpenBSD: patch-source_include_platform_aclinux_h,v 1.1 2014/05/20 16:37:09 sthen Exp $
--- source/include/platform/aclinux.h.orig	Wed Jul 11 16:55:44 2012
+++ source/include/platform/aclinux.h	Tue May 20 16:58:15 2014
@@ -50,6 +50,10 @@
 #define ACPI_USE_DO_WHILE_0
 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 
+#ifdef __OpenBSD__
+#define ACPI_USE_ALTERNATE_TIMEOUT
+#endif
+
 
 #ifdef __KERNEL__
 
