You'd hit big problems almost immediately, eg. your initial C compiler would be K&R, you'd eventually have to be able to bootstrap a C89 capable compiler. That

You'd hit big problems almost immediately, eg. your initial C compiler would be K&R, you'd eventually have to be able to bootstrap a C89 capable compiler. That's without having any TCP/IP support and extremely limited storage space for source code and compiled binaries by today's standards. I considered attempting this once starting from AT&T SVR4 - even though it had TCP/IP with the right addon package and a C compiler - gcc had dropped SVR4 support a long time ago. There's probably another couple of hundred obstacles along the way as well...