shared libraries

[glenn at aoi.ultranet.com (Glenn Burkhardt)]

>	/usr/bin/ld: cannot open -lX11: No such file or directory
>	collect2: ld returned 1 exit status

I get the same thing unless I include -L/usr/X11R6/lib in the link line.  I 
don't think the linker uses the shared library cache file; it's used at
run time to find the libraries.

> If I am only linking against one of the libraries such as libX11
> I can pass the
> -L option such as
	-L/usr/X11R6/lib/ -lX11
> and ld will find libX11. the problem is if I need libX11 and
> another library in another directory. 

Why is this a problem?  You should be able to use a link line that finds all 
required libraries.  For example:

gcc -o er < ... object modules ... > -L/usr/local/qt/lib -lqt -L/usr/X11R6/lib 
-lX11 -lXext -lICE -lSM -lm

finds libraries in multiple locations.

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