New comment by yopito on void-packages repository

https://github.com/void-linux/void-packages/issues/20878#issuecomment-612516387

Comment:
I was not aware of that.  
But within its `do_configure()` , cmake.sh (re)changes current dir to $cmake_builddir, so `build_wrksrc` is is not relevant in this case:

```
$ cat -n common/build-style/cmake.sh 
     1  #
     2  # This helper is for templates using cmake.
     3  #
     4  do_configure() {
     5          local cmake_args=
     6          [ ! -d ${cmake_builddir:=build} ] && mkdir -p ${cmake_builddir}
     7          cd ${cmake_builddir}
     8
[...]
```