How much GNU is there in GNU/Linux? | Split Perspective

This is really interesting. The most important GNU-made part of GNU/Linux is the GPL, of course.

Some comments on LWN:

Remove the GNU C library and then report how much of that software runs. —mikankun

Remove the kernel and then report how much of that software runs.

Points scored based on who can hold who to ransom, anybody? —ldo

remove gcc and see how much of that kernel compiles…

wait clang actually compiles the linux kernel http://lwn.net/Articles/411654/pranith

It goes on.