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From: Pieter de Goeje <pieter@degoeje.nl>
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Cc: Edward Ruggeri <smallhand@crawblog.com>
Subject: Re: Linux binary wants GLIBC_2.4, GLIBCXX_3.4.9
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On Monday 02 March 2009, Edward Ruggeri wrote:
> I am using FreeBSD 7.0 Stable.  I want to run the Linguistica project
> Linux binary.  However, after loading the Linux kernel module, when I
> try to run the binary the system replies:
>
> ./lxa-ubuntu-325: /usr/lib/libstdc++.so.6: version `GLIBCXX_3.4.9' not
> found (required by ./lxa-ubuntu-325)
> ./lxa-ubuntu-325: /usr/lib/obsolete/linuxthreads/libc.so.6: version
> `GLIBC_2.4' not found (required by ./lxa-ubuntu-325)
>
> Besides asking the Linguistica developers whether they actually must
> require such recent versions of the GNU C, C++ libraries, I tried to
> install a more recent linux_base.  However, everything beyond
> linux_base-fc4 does not support Linux kernel 2.4.2.
>
> Is there a module for a newer version of the linux kernel that I can
> build so as to install a newer linux_base?  Or is there a way to use
> the same 2.4.2 module but use more recent GNU C libraries?  I am not
> an expert in this area; is there something I haven't thought of?

You can "upgrade" the linux compatibility layer by setting the sysctl:

  compat.linux.osrelease=2.6.18

For example in /etc/sysctl.conf. Then you should be able to install a newer 
version of linux_base.

-- 
Pieter de Goeje