参考:
https://doublecmd.sourceforge.io/forum/viewtopic.php?t=1719
引用:
Download libQt4Pas from here: http://users.telenet.be/Jan.Van.hijfte/qtforfpc/fpcqt4.html
You should have "libpcre3" installed. Check if you have "libpcre.so.3", most likely a symbolic link.