I have a problem running a regression test needed for the bug send by me ( http://bugs.winehq.org/show_bug.cgi?id=33290 ).
It's my first time so be gentle and please help

You need to install the X 32 bit development files. If they are installed, you may need to make a symlink. Check the config.log to see exactly what configure is looking for and not finding.Mr Sinister wrote: But what's next? ./configure --verbose && make gives me an error: configure: error: X 32-bit development files not found.