Document which versions of autoconf and automake mutt supports.

diff --git a/doc/devel-notes.txt b/doc/devel-notes.txt
index 748e36f9d551cf8a7f9c09b810fcae641557ba5f..0b557b82fec0b649f548b44aa044111f4b6e4193 100644 (file)
--- a/doc/devel-notes.txt
+++ b/doc/devel-notes.txt
@@ -14,9 +14,9 @@ patches.
 
 You'll need several GNU development utilities for working on mutt:
 
-- automake
+- automake (versions less than 1.9 are not officially supported)
 
-- autoconf
+- autoconf (likewise, versions less than 2.59 are unsupported)
 
 - autoheader