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- From: eggert@twinsun.com (Paul Eggert)
- Subject: Re: Delta (Difference) File Generation Algorithm
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- Date: Fri, 22 Jan 1993 04:01:28 GMT
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-
- bhahn@sw.stratus.com (Bill Hahn) writes:
-
- Danger!
-
- There is a diff3 which is part of GNU diff, and there is an older diff3
- which can be found on UNIX systems; these programs, while having
- similar intent, and the same name, take a different number of
- command line arguments -- and can thus cause much confusion.
-
- Wait a minute -- there's no danger unless you're mucking with
- undocumented internals. Traditional diff3 has the synopsis
-
- diff3 [ options ] filename1 filename2 filename3
-
- and Gnu diff3 is no different.
-
- Granted, Gnu diff3 does differ from traditional diff3's undocumented
- auxiliary program /usr/*lib/*diff3*, but anybody who uses that
- undocumented program has to be prepared for portability problems,
- independently of whether the diff3 is traditional or Gnu.
-