RealProgrammer's Journal: SCO December 19, 2003 ABI Files letter

Here is a commentary on the letter of December 19, 2003, which claimed that portions of 65 Linux source code files were 'copied verbatim' from SCO's version of Unix. SCO also claimed that some application binary interfaces were their proprietary products.

The commentary (an early version of which also appears in LinuxWorld and is Google cached) analyzes what SCO is actually claiming in Linux. The goal was to explain (with Groklaw's help) the letter's bogus claims so that programmers and lawyers would both understand how far off base those claims actually were. We'd still like more input, to keep Linux and the BSD's safe from SCO or the next opportunist who declares open season on Open Source.