[lug] A head scratcher for your weekend

[Matt Bidwell]

Library is installed, program can find other libraries in that 
directory. Reinstalling or downgrading either the package or the library 
didn't fix it.... What could have happened to my system?
# ls -alh /usr/lib/x86_64-linux-gnu/libQt5Core.so.5*
lrwxrwxrwx 1 root root   20 May 12 07:03 
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5 -> libQt5Core.so.5.10.1
lrwxrwxrwx 1 root root   20 May 12 07:03 
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.10 -> libQt5Core.so.5.10.1
-rw-r--r-- 1 root root 5.0M May 12 07:03 
/usr/lib/x86_64-linux-gnu/libQt5Core.so.5.10.1

ldd /usr/bin/mythbackend
...
	libQt5Script.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Script.so.5 
(0x00007f4eb42f8000)
	libQt5Core.so.5 => not found
	libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 
(0x00007f4eb40d8000)
...

This is very perplexing.