Re: fix lt_join

[Eric Blake]

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According to Ralf Wildenhues on 10/16/2007 12:04 AM:

Hi Ralf, and thanks for putting up with me...

>> Here's the implementation that mirrors what I'm installing into m4sugar;
>> it has the added benefit of being faster as well.  OK to apply?
> 
> OK if you can explain to me the bug.  For me,
>   lt_join([|],[one],,,)
> 
> expands to
>   one
> 
> both before and after the patch.

A bug in my test environment :)  I was just pasting in the definition of
lt_join, but not lt_car, in my m4sugar execution, rather than sourcing
ltsugar.m4.  Obviously, if lt_car is undefined, it doesn't get expanded.

Still, once I fixed my setup, the numbers speak for themselves:

echo 'm4_debugmode(qt)lt_join(|,one,,,)' | m4 -Iautoconf/lib \
  m4sugar/m4sugar.m4 ltsugar.m4 - 2>&1 | wc

pre-patch: 79 macros
post-patch: 20 macros

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

Eric Blake             address@hidden
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