cmake: bump the minimum required version to 3.12

Even Debian old-old-stable (buster) shipped 3.13.

This is needed because modern cmake (3.28) warns about specifying too old of a
minimum required version:

  CMake Deprecation Warning at .../CMakeLists.txt:23 (cmake_minimum_required):
    Compatibility with CMake < 3.5 will be removed from a future version of
    CMake.

Instead of bumping the version to 3.11, we bump it to 3.12 to match
libjeffpc.

Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
1 files changed, 2 insertions(+), 2 deletions(-)

M CMakeLists.txt
M CMakeLists.txt +2 -2
@@ 1,5 1,5 @@ 
 #
-# Copyright (c) 2011-2020 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
+# Copyright (c) 2011-2020,2024 Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal

          
@@ 20,7 20,7 @@ 
 # SOFTWARE.
 #
 
-cmake_minimum_required(VERSION 2.8.12.2)
+cmake_minimum_required(VERSION 3.12)
 project(blahgd)
 
 enable_testing()