C headers
Explanation of the table method by Linus Torvalds
Google Groups : linux.kernel
Warren Toomey, of the UNIX Heritage Society, traces the history of errno.h in Unix and Linux article
GROKLAW
Commentary on the SCO Dec 2003 ABI Files letter, including a detailed analysis of the history of errno.h letter
Commentary on the SCO Dec 19, 2003 ABI Files letter
Linus Torvalds's commentary on errno.h kernel
Linux-Kernel Archive: Re: hmm..
The Open Group's specifications for error.h
<errno.h>
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