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-rw-r--r--Build/source/utils/pdfopen/configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/utils/pdfopen/configure.ac b/Build/source/utils/pdfopen/configure.ac
index f32842f48ca..bae004ef959 100644
--- a/Build/source/utils/pdfopen/configure.ac
+++ b/Build/source/utils/pdfopen/configure.ac
@@ -7,7 +7,7 @@ dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
dnl
AC_INIT([pdfopen for TeX Live], [0.51], [tex-k@tug.org])
-AC_PREREQ([2.63])
+AC_PREREQ([2.65])
AC_CONFIG_SRCDIR([pdfopen.c])
AC_CONFIG_AUX_DIR([../../build-aux])
AC_CONFIG_MACRO_DIR([../../m4])