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Date:	Thu, 10 Jan 2013 13:47:16 -0600
Message-ID:	<CAHiT=DF08697RZy3gSCcDqLZSx=59OsnrV2sWsEZ7RR08cWS_w@mail.gmail.com>
Subject:	Re: Rebuilding make
From:	Reini Urban <rurban AT x-ray DOT at>
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On Wed, Jan 9, 2013 at 7:02 AM, Fedin Pavel  wrote:
>> 1. doc/fdl.texi and doc/make-stds.texi files are missing from the archive.
>> 2. configure seems to incorrectly determine HAVE_DOS_PATHS as true. This
>> breaks $abspath() function.
>>
>>  I solved (1) by adding these files from the original UNIX archive. Of
>> course i can solve (2) by tweaking config/dospaths.m4, however perhaps i
>> don't know something ? How do you build make ?
>
>  Just FYI: i have tweaked dospaths.m4 and built a working make. After this i
> successfully patched it to use spawn(). For benchmarking i used 'all' then
> 'clean' targets on make's own source code.
> --- cut ---
> p DOT fedin AT fedinw7x64 /usr/src/make-3.82.90-1
> $ time make.old
>
> [skip]
>
> real    0m45.759s
> user    0m23.206s
> sys     0m19.410s
>
> p DOT fedin AT fedinw7x64 /usr/src/make-3.82.90-1
> $ time make.old clean
>
> [skip]
>
> real    0m7.520s
> user    0m2.767s
> sys     0m4.268s
>
> p DOT fedin AT fedinw7x64 /usr/src/make-3.82.90-1
> $ time make
>
> [skip]
>
> real    0m31.869s
> user    0m16.470s
> sys     0m14.061s
>
> p DOT fedin AT fedinw7x64 /usr/src/make-3.82.90-1
> $ time make clean
>
> [skip]
>
> real    0m2.740s
> user    0m0.748s
> sys     0m1.643s
>
> p DOT fedin AT fedinw7x64 /usr/src/make-3.82.90-1
> $
> --- cut ---
>  'clean' target runs especially faster, you see the difference with a naked
> eye. I believe in case of gcc there's disk access factor.

0m45.759s+0m7.520s => 0m31.869s+0m2.740s

Great! Can you gist the patches somewhere please?

-- 
Reini Urban
http://cpanel.net/   http://www.perl-compiler.org/

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