Re: [PATCH 06/12] use a shell function for _AC_CHECK_HEADER_MONGREL

[Eric Blake]

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According to Paolo Bonzini on 10/25/2008 6:57 AM:
>> Meanwhile, before I actually work on this patch, I noticed a small 
>> optimization 
>> that I will be applying soon:
> 
> Is this really worth it?...

For coreutils, it cut "autoconf --trace 'm4_case:$%' | wc" from 24k to 6k
of parameter size, which in turn means less parsing during the recursion
helpers for m4_case.  Unfortunately, I didn't measure pre- and post-
timings to see if it was noticeable; however, I also suspect that m4 1.4.x
sees a bigger improvement than m4.git branch-1.6 (where $@ handling is
more efficient).

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

Eric Blake             address@hidden
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