mention m4 processing

diff --git a/NEWS b/NEWS
index f5857c6759eaff50dab9ee7bf03eccc328a1c9b2..01dd6b033cbfd7d69cfbe736c0456066e551fdee 100644 (file)
--- a/NEWS
+++ b/NEWS
@@ -3,6 +3,11 @@ changes between releases of flex.
 
 See the file COPYING for copying conditions.
 
+* after version 2.5.29
+
+** flex now uses m4 to generate scanners; while this means that
+   scanners are more readable, it means that flex requires m4 to be installed
+
 * version 2.5.29 released 2003-3-5
 
 ** Automatic stack management for multiple input buffers in C and C++ scanners