pngminus: Add .editorconfig file; update the CMake file
diff --git a/contrib/pngminus/.editorconfig b/contrib/pngminus/.editorconfig
new file mode 100644
index 0000000..8504b49
--- /dev/null
+++ b/contrib/pngminus/.editorconfig
@@ -0,0 +1,29 @@
+# https://editorconfig.org
+
+root = true
+
+[*]
+charset = utf-8
+end_of_line = unset
+indent_size = unset
+indent_style = space
+insert_final_newline = true
+max_doc_length = 79
+max_line_length = 79
+trim_trailing_whitespace = true
+
+[*.[ch]]
+indent_size = 2
+indent_style = space
+
+[CMakeLists.txt]
+indent_size = 4
+indent_style = space
+max_doc_length = 79
+max_line_length = 99
+
+[{Makefile,makevms.com}]
+indent_size = unset
+indent_style = unset
+max_doc_length = 79
+max_line_length = 99
diff --git a/contrib/pngminus/CMakeLists.txt b/contrib/pngminus/CMakeLists.txt
index d789364..8d69b5e 100644
--- a/contrib/pngminus/CMakeLists.txt
+++ b/contrib/pngminus/CMakeLists.txt
@@ -1,9 +1,9 @@
-# Copyright (c) 2018-2024 Cosmin Truta
+# Copyright (c) 2018-2025 Cosmin Truta
#
# This software is released under the MIT license. For conditions of
# distribution and use, see the LICENSE file part of this package.
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.14)
project(PNGMINUS C)
