diff -r 5f222264bb54 -r 60b7ebc4709a config/companion_tools.in
--- a/config/companion_tools.in	Tue Jan 12 21:09:30 2010 +0100
+++ b/config/companion_tools.in	Tue Jan 12 21:47:14 2010 +0000
@@ -10,6 +10,7 @@
     prompt "Build some companion tools"
     help
       Crosstool-NG relies on some external tools to be recent enough, namely:
+        m4 >= 1.4.12
         autoconf >= 2.63
       
       If your system has older versions, we can build them for you,
@@ -17,6 +18,10 @@
 
 if COMP_TOOLS
 
+config COMP_TOOLS_m4
+    bool
+    prompt "m4"
+
 config COMP_TOOLS_autoconf
     bool
     prompt "autoconf"