1 files changed, 3 insertions, 1 deletions
diff --git a/INSTALL b/INSTALL
index 379907c9..fb100a9f 100644
--- a/INSTALL
+++ b/INSTALL
@@ -31,7 +31,9 @@ Next run
 	make
 
 This will compile fetchmail for your system.  Note that in order to
-build it, you'll need either flex at version 2.5.3 or greater, or lex.
+build it, you may find you need flex at version 2.5.3 or greater.  The
+stock lex distributed with Linux does not work -- it yields a parser
+which core-dumps on syntax errors.
 
 If mxget.c fails to compile, your DNS-query support isn't compatible
 with BSD's and Linux's.  Manually undefine HAVE_GETHOSTBYNAME in