I'm not sure there are any major "gnu tools"? There are gnu flavored posix tools. I'm not saying the gnu project isn't great (and I can't stand being constrain

I'm not sure there are any major "gnu tools"? There are gnu flavored posix tools. I'm not saying the gnu project isn't great (and I can't stand being constrained to posix tools without gnu extensions) - but the tools are generally from unix/posix?