What am I doing wrong when a Linux app doesn't find an .so file?

Question

I have just downloaded, configure'd, make'd and make install'ed the Google Log Library to my computer. It built all required files (as far as I can see) and copied the .so file (libglog.so.0.0.0) to /usr/local/lib. Then it created two symbolic links called "libglog.so.0" and "libglog.so" that point to that shared object file:

lrwxrwxrwx 1     16 /usr/local/lib/libglog.so -> libglog.so.0.0.0
lrwxrwxrwx 1     16 /usr/local/lib/libglog.so.0 -> libglog.so.0.0.0
-rwxr-xr-x 1 498381 /usr/local/lib/libglog.so.0.0.0

Now I'm trying to execute a program that uses the library, but when I start it, I get the error message that it can't open the so-file:

cloud:/home/blam/redirector/redirector2# ./redirector
./redirector: error while loading shared libraries: libglog.so.0: cannot open shared object file: No such file or directory

/usr/local/lib is included in my /etc/ld.so.conf file, and another library that's located in this directory is loaded correctly.

What am I doing wrong here? What am I missing?

Answer 1

Okay, fixed it myself. I had to call ldconfig manually.

Looks as if some tool modified the ld.so.conf, but did not update the database.