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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 496631a..1551ded 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,4 +1,5 @@
dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.68)
AC_INIT([Makefile.in])
AC_CONFIG_AUX_DIR([build-aux])