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-rw-r--r--libf2c/libU77/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/libf2c/libU77/configure.in b/libf2c/libU77/configure.in
index 2e6e608c04e..58b8de31586 100644
--- a/libf2c/libU77/configure.in
+++ b/libf2c/libU77/configure.in
@@ -19,6 +19,7 @@
#to Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
#USA.
+AC_PREREQ(2.12.1)
AC_INIT(access_.c)
AC_CONFIG_HEADER(config.h:config.hin)