- Update to version 20230309
* Let cmake macros be based on associated macros from macros.cmake
* Add support to define a custom rpm macro when running mingw64
related shell scripts, see mingw64-scripts.sh for details
* Drop using external dependency generator (boo#1175587)
* Add mingw64_*.attr files to support actual used dependency generator
* Fix bug that rpm does not use attribute file for cmake by renaming
to mingw64_cmake.attr (rpm does not like '-' in those file name
and keys inside)
* Extend mingw64_cmake.attr to find cmake support files in
share subdirectory as required for example by mingw64-dlfcn-win32
* Print deprecated message when using %_mingw64_makeinstall or
%__mingw64_cmake
* Reduce some differences to mingw32 in changes and other files,
which are mostly indentions, hours, trailing '/', variable
definition rows - make it easier to compare