Re: AS_IF optimization

[Eric Blake]

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According to Ralf Wildenhues on 4/9/2009 11:56 PM:
>>> Which pre-dates shell functions.  Therefore, since AS_IF is part of m4sh,
>>> which guarantees a shell with functions, can elide empty else statements
>>> with impunity.  Thanks for the research.
>> I'm thinking of applying this patch; any objections to the wording?
> 
> Can you hold back on this for a couple of days?  I'm still in the
> process of going through Automake testsuite results, and might have
> found a tangent issue.

Sure.  Perhaps it is a case where it is 'set -e' making a difference?  At
any rate, the series is now camped out at:

$ git pull git://repo.or.cz/autoconf/ericb.git as-if

Eric Blake (4):
      Add m4_blank and friends.
      Make AS_IF, AS_CASE, and AS_FOR more robust to blank arguments.
      Improve documentation about if exit status.
      Add cross-reference to new macros.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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