[Chimera-users] Request

Greg Couch gregc at cgl.ucsf.edu
Mon Aug 13 17:25:11 PDT 2007

On Tue, 14 Aug 2007, Christoph Best wrote:

> Greg Couch writes:
> > You don't say which version of linux you're using, but I have seen that
> > error on 64-bit Debian Linux systems (so the same problem would occur with
> > Ubuntu).  If you were running 64-bit Red Hat or SuSe Linux, it should have
> > worked.  We are investigating an alternative compliation environment
> Debian "Etch" Stable still uses a 2.3.6 libc, and it seems that in the
> installer executable there are symbol references from 2.4. Curiously,
> the other executables and libraries don't seem to require 2.4, just
> 2.3. The only symbol from 2.4 is __stack_chk_failed, which might
> indicate that something there was compiled with the -fstack-protector
> (Stack overflow protection) feature, which is only supported from
> gcc-4.1 and glibc 2.4.
> Debian "Sid" Unstable or "Lenny" Testing (which are quite stable
> despite the name, "testing" being more stable than "unstable") have
> 2.6 libcs.  Ubuntu switched to a 2.4 libc with the Edgy release (6.10,
> i.e. October 2006). On our AMD64 Ubuntuns, Chimera 1.2422 runs fine.
> -Christoph

That is great news!  I double-checked the binaries and you're right, only 
the installer requires Glibc 2.4.  It's not clear why that is since we 
don't compile with -fstack-protector.  I'll investigate further.

 	- Greg

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