diff -r 3a7b2eee9dcd -r 06938bc1c6e7 config/global/ct-behave.in
--- a/config/global/ct-behave.in	Sat Oct 06 23:48:07 2012 +0200
+++ b/config/global/ct-behave.in	Thu Jan 10 22:38:48 2013 +0100
@@ -29,6 +29,37 @@
         - non-existant, in which case you could also try hacking it in and send me
           the result
 
+config ALLOW_BUILD_AS_ROOT
+    bool
+    prompt "Allow building as root user (READ HELP!)"
+    depends on EXPERIMENTAL
+    help
+      You normally do *not* need to be root to build a toolchain using
+      crosstool-NG. In fact, it is *VERY* dangerous to run as root, as
+      crosstool-NG will, as part of the build process, remove a few
+      directories. If anything goes wrong, running as root can ruin
+      your host distribution.
+      
+      I can't stress it enough:  DO  NOT  RUN  AS  ROOT  !!
+      
+      Do not run as root, you've been warned.
+      Do not come whining, if it nukes your host system.
+      Do not come whining, if you lose any data.
+      Do not run as root.
+      
+      Do not run as root, you've been warned.
+      Do not come whining, if the Earth stops rotating.
+      Do not come whining, if kittens are smashed.
+      Do not run as root.
+      
+      Do not run as root, do not run as root!
+      (ad libitum)
+
+config ALLOW_BUILD_AS_ROOT_SURE
+    bool
+    prompt "Are you sure?"
+    depends on ALLOW_BUILD_AS_ROOT
+
 config DEBUG_CT
     bool
     prompt "Debug crosstool-NG"