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-rw-r--r--configure.in4
1 files changed, 4 insertions, 0 deletions
diff --git a/configure.in b/configure.in
index c41bf86..8a15282 100644
--- a/configure.in
+++ b/configure.in
@@ -1,5 +1,9 @@
dnl -*- shell-script -*-
dnl Process this file with autoconf to produce a configure script.
+
+dnl we need autoconf >= 2.50
+AC_PREREQ(2.50)
+
AC_INIT(kernel/mpio.c)
dnl AM_CONFIG_HEADER(src/config.h)