Linking problems with mutex and zsyrk_

[Daniel J Sebald]

I've been compiling recent versions of Octave on openSUSE 10.3.  (openSUSE has 
a pre-3.0 version, 2.9.12, that doesn't load version 7 mat files, or even 
handle the load/save options all that well.)  I've tried the latest stable 
release (3.0.3), and that compiles fine.  I've also tried the latest mercurial 
source, and that fails at link time with undefined library references:

pthread_mutexattr_init
pthread_mutexattr_settype
pthread_mutexattr_destroy
zsyrk_

What I notice about the mutex class functions is that they are declared as a 
class member function in the file oct-mutex.cc, but nowhere do they actually 
appear to be defined.

What the issue is with zsyrk_ from CMatrix.cc I'm not sure.

Perhaps these have been missing for a while and openSUSE has gcc set up to be 
more stringent on missing library functions.

Dan