Hi,
I know this is very late, but I had a similar error where the compiler also could not find libfix8.so.1 using Ubuntu. The error included the following:
f8c: error while loading shared libraries: libfix8.so.1: cannot open shared object file: No such file or directory
I solved this by doing the following:
% export LD_LIBRARY_PATH=/usr/local/lib/libfix8.so.1
% sudo ldconfig
Hope this helps anyone in the future with a similar issue.
Patrick