Description: Fix FTBFS with CMake 4
Author: Adrian Bunk <bunk@debian.org>
Bug-Debian: https://bugs.debian.org/1112844

--- diffpdf-2.1.3.1.orig/CMakeLists.txt
+++ diffpdf-2.1.3.1/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.1)
+cmake_minimum_required(VERSION 3.5)
 
 set(DIFFPDF_VERSION 2.1.3.1)
 project(DiffPDF VERSION ${DIFFPDF_VERSION})