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-rw-r--r--Build/source/libs/libpng/configure.ac2
1 files changed, 1 insertions, 1 deletions
diff --git a/Build/source/libs/libpng/configure.ac b/Build/source/libs/libpng/configure.ac
index 5bb85d748a7..5756450c0b6 100644
--- a/Build/source/libs/libpng/configure.ac
+++ b/Build/source/libs/libpng/configure.ac
@@ -11,7 +11,7 @@ m4_define([libpng_minor], [2])[]dnl
m4_define([libpng_micro], [40])[]dnl using unmodified libpng source tree
m4_define([libpng_version], libpng_major.libpng_minor.libpng_micro)[]dnl
AC_INIT([libpng for TeX Live], libpng_version, [tex-k@tug.org])
-AC_PREREQ([2.63])
+AC_PREREQ([2.65])
AC_CONFIG_SRCDIR([libpng-]libpng_version)
AC_CONFIG_AUX_DIR([../../build-aux])
AC_CONFIG_MACRO_DIR([../../m4])