cannot find -lX11

[Chris Sorenson]

> 
> -L/home/roy/marinas-ide/qt/lib -L/usr/lib
> 

There's the bad right there, libX11 must be somewhere other
than /usr/lib. Find out where it is and change that entry in
the Makefile. (If you really have no idea where it is, do
this: find / -name libX11\* could take a while as that will
search the entire filesystem. If you're sure it's in /lib
do: find /lib -name libX11\* good luck!).