Re: why is ldconfig needed after installation

[Russ Allbery]

Peter Johansson <address@hidden> writes:

> I just installed a library with libtool (via automake generated rules)
> and when trying to use the lib I get this:

> error while loading shared libraries: libyat.so.9

> which is going away if I issue

> sudo ldconfig /us/local/lib

> My question is why is that even needed, as I thought libtool already did
> that. No?

ldconfig has to be run because the dynamic linker maintains a cache of
available libraries that has to be updated.  libtool does this when run
with libtool --mode=finish on the installation directory.  I'm not sure if
it does this when it thinks the directory isn't listed in the system
library search path, though.

-- 
Russ Allbery (address@hidden)              <http://www.eyrie.org/~eagle/>