clarify when 8-bit scanners are created by default, vs. 7-bit

diff --git a/Makefile.in b/Makefile.in
index f826ee6d73fcec852f54e6b193c97bb729160bff..dfbd606102588df552032403d4a79720bb67f4db 100644 (file)
--- a/Makefile.in
+++ b/Makefile.in
@@ -4,6 +4,8 @@
 
 # Possible values for DEFS:
 #
+# By default, flex generates 8-bit scanners when using table compression,
+# and 7-bit scanners when using uncompressed tables (-f or -F options).
 # For flex to always generate 8-bit scanners, add "-DDEFAULT_CSIZE=256"
 # to DEFS.
 #