Added build_ext -lg2c to numpy build command.  This is required on Centos3 systems, I hope it doesn't break anything on other systems.
Added build_ext -lg2c to numpy build command.  This is required on Centos3
systems, I hope it doesn't break anything on other systems.

nagyistoce/devide.johannes,nagyistoce/devide.johannes,fvpolpeta/devide.johannes,codester2/devide.johannes,fvpolpeta/devide.johannes,ivoflipse/devide.johannes,chrisidefix/devide.johannes,chrisidefix/devide.johannes,codester2/devide.johannes,ivoflipse/devide.johannes