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-rw-r--r--contrib/libf2c/libF77/configure.in1
1 files changed, 1 insertions, 0 deletions
diff --git a/contrib/libf2c/libF77/configure.in b/contrib/libf2c/libF77/configure.in
index 660fb1a..5a3aa1a 100644
--- a/contrib/libf2c/libF77/configure.in
+++ b/contrib/libf2c/libF77/configure.in
@@ -19,6 +19,7 @@
#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.
+AC_PREREQ(2.12.1)
AC_INIT(getarg_.c)
dnl Checks for programs.
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