Update configure.ac for latest version of autoconf.

git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1297 6239d852-aaf2-0410-a92c-79f79f948069

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 2694119..2865f9a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -25,6 +25,12 @@ now the same as Perl.
   (b) A sequence such as {65536 that has no terminating } so is not a 
   quantifier was nevertheless complaining that a quantifier number was too big.
 
+5. A run of autoconf suggested that configure.ac was out-of-date with respect
+to the lastest autoconf. Running autoupdate made some valid changes, some valid
+suggestions, and also some invalid changes, which were fixed by hand. Autoconf 
+now runs clean and the resulting "configure" seems to work, so I hope nothing 
+is broken.
+
 
 Version 10.36 04-December-2020
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