There's a closed pull request on the void-packages repository

[RFC] ccache: remove bootstrap=y, build manpage, enable tests
https://github.com/void-linux/void-packages/pull/26034

Description:
#25753 bumped ccache to 4.0 and introduced cmake-bootstrap.

with ccache being `bootstrap=yes`, building manpage and tests is impossible, because building manpage requires [asciidoc](https://github.com/ccache/ccache/blob/v4.0/doc/CMakeLists.txt#L4) and [perl](https://github.com/ccache/ccache/blob/v4.0/doc/CMakeLists.txt#L52), and tests require ctest from the real cmake package which conflicts with the crippled cmake-bootsrap.


If this is considered to be merged, a few commits of #25753 should be reverted along