hush: report [v]fork failures
hush: more correct handling of piping
config: add CONFIG_NOMMU

diff --git a/Config.in b/Config.in
index fa48ddd..d2bb632 100644
--- a/Config.in
+++ b/Config.in
@@ -280,6 +280,17 @@
 
 	  Most people will leave this set to 'N'.
 
+config NOMMU
+	bool "Force NOMMU build"
+	default n
+	help
+	  Busybox tries to detect whether architecture it is being
+	  built against supports MMU or not. If this detection fails,
+	  or if you want to build NOMMU version of busybox for testing,
+	  you may force NOMMU build here.
+
+	  Most people will leave this set to 'N'.
+
 config BUILD_LIBBUSYBOX
 	bool "Build shared libbusybox"
 	default n