Trying to update Midnight Commander to the latest version (4.8.23), I downloaded the corresponding tar.xz file from their website (http://ftp.midnight-commander.org/?C=N;O=D), extracted the files and issued ./configure, but afterwards I get the error:
configure: error: S-Lang library version 2.0 or newer not found
However, the output of sudo apt-get install libslang2 tells me I already have the newest version (2.3.1a-3ubuntu1) of that library.
What may be the problem?