Synopsis: Unable to install State-Changed-From-To: open-closed State-Changed-By: marc State-Changed-When: Thu Oct 2 06:31:23 PDT 1997 State-Changed-Why: Not having a /dev/zero is somewhat broken, however you are running an old OS so who knows what it does.
You will need to recompile your own binary from the sources. You can find gcc binaries in the Skunkware software package available for ftp from SCO, however you will have to look to see if you can find any applicable to your version.
