Mozilla Compiling Error

[khockey1015 at cox.net]

Every time I try to install Mozilla on my system (or most any 
package for that matter from Ports) it gives me this error: 
 
***/usr/local/bin/gmake is not GNU make. You will not be able 
to build Mozilla without GNU Make. 
===>Script "configure" failed unexpectedly. 
       Please report the problem to gnome at FreeBSD.org 
[maintainer] and attach the "/usr/ports/www/mozilla/config.log" 
including output of the of your make command. Also, it might 
be a good idea to provide an overview of the packages 
installed on your system (e.g. an "ls /var/db/pkg"). 
***Error Code 1