linux_base and libreadline.so symlink (was: Re: Matlab)

[Alexander Leidinger]

Am Mon, 27 Feb 2006 16:26:20 +0300
schrieb Boris Samorodov <bsam at ipt.ru>:

> > Unfortunately it does not just ignore the fact it's a FreeBSD binary - it 
> > blows up.
> 
> > You can try adding a manual symlink - I have libreadline.so.4 from linux_base 
> > but not libreadline.so, ie I suggest you do this..
> > cd /compat/linux/usr/lib
> > ln -s libreadline.so.4 libreadline.so
> 
> Why didn't linux distribution do this symlink?
> Should our linux_base port do it (as well as for libtermcap.so and
> maybe others)?

The dynamic linker should have references to specific versions of a
library. The symlinks are typically only needed when compiling (more
correctly: linking) a program.

It may be the case that matlab opens the lib via dlopen(3), but I would
expect that other libs are dlopen'ed then too, not only libreadline.

I suggest to ktrace(1) or truss(1) matlab to determine what it tries to
do.

Bye,
Alexander.

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