8023957: Lock down version of autoconf
Reviewed-by: chegar, dsamersoff, tbell, dholmes
diff --git a/common/autoconf/configure.ac b/common/autoconf/configure.ac
index fcaf12f..274f278 100644
--- a/common/autoconf/configure.ac
+++ b/common/autoconf/configure.ac
@@ -30,7 +30,7 @@
###############################################################################
-AC_PREREQ([2.61])
+AC_PREREQ([2.69])
AC_INIT(OpenJDK, jdk8, build-dev@openjdk.java.net,,http://openjdk.java.net)
AC_CONFIG_AUX_DIR([build-aux])