$NetBSD$

--- src/dmd/backend/machobj.c.orig	2010-12-20 20:02:36.000000000 +0000
+++ src/dmd/backend/machobj.c
@@ -21,7 +21,7 @@
 #include        <malloc.h>
 #endif
 
-#if linux || __APPLE__ || __FreeBSD__ || __sun&&__SVR4
+#if linux || __APPLE__ || __FreeBSD__ || __sun&&__SVR4 || __NetBSD__
 #include        <signal.h>
 #include        <unistd.h>
 #endif
