there are a couple of addons that come embedded to the icecat and i don't use some of them so i decided to find a way to remove them before i build it.
i found that the `extensions/gnu` holds the extensions which are added as the last step of the build thingy, i just removed that directory and checked all the makefile's and configs in rthe `extensions` parent dir, there was nothing looking for the `gnu` dir so i proceeded to building.
it went on smoothly until the very last step of the build, then failed. i ran `./mach install` but that gave me an error regarding how it couldn't find the `extensions/gnu` directory so i modified those lines out of the script that `./mach install` executes and it got installed properly, or at least i think so.
what is the proper way to do this other than unintelligently removing the things i removed?