Hi,
It seems that since CMake 3.13, it is required to invoke the cmake
command explicitly with path to source, which was not required
previously. IOW in F29 was enough to call:
~~~
$ cmake
~~~
while F30+ requires:
~~~
$ cmake .
~~~
Unfortunately, neither upstream nor Fedora packagers perceives this
issue worth noting [1], although just during Ruby mass rebuild, I met
already quite some failing packages due to this issue.
Vít
[1]
https://bugzilla.redhat.com/show_bug.cgi?id=1667306#c4