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dynamic library path LDDPATH

This seems like magic if you don't understand that most programs actually share large sections of their code. That code is originally loaded from code "libraries" at known locations.

Aside from saving ram, there are other advantages - if a bug is found in a library, you don't have to update every program that used it; you just update the library.

There are times when you want to use something different than the default. That's what LD_LIBRARY_PATH is all about.

See SCO shared libraries, Linux shared libraries and Linux Shared Libraries HOWTO.

Newsgroups: comp.os.linux.misc
Subject: Re: finding dynamic library files?
References: <hHki5.112344$8u4.1053854@news1.rdc1.bc.home.com> 
From: kumar1@home.com (Prasanth A. Kumar)
Message-ID: <m37l9xodbf.fsf@C654771-a.frmt1.sfba.home.com> 
Date: Fri, 04 Aug 2000 04:33:26 GMT

anduguid@home.com writes:

>  installed the gdkpixbuf and gnomecanvaspixbuf library file for gnome, to use
> insted of imlib...
> 
> problem: on doing the stand ./configre;make;make install the library is
> installed in /usr/local/lib
> 
> question: how do i make the dynamic library loader 'aware' that it should also
> search this directory as opposed to the 'standard' ones.  i have come across
> this problem b4, on istalling additional library;s they have been installed to
> the /usr/local/lib directory BUT then programs that require them canNOT find
> them and hence fail.
> 
> luke duguid
> 
> -- 
> no signature...yet!

Make sure the path is listed in /etc/ld.so.conf and then run as root
'ldconfig -v' to update the cache. This is normally done once during
bootup and inside of RPM packages I think so normally you don't need
to do this manually. You can also 'export LD_LIBRARY_PATH=<path>' if a
non-root user needs to do it temporarily but that wont work with suid
executables obviously.

-- 
Prasanth Kumar
kumar1@home.com

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