Nice-to-have fix for autogen.sh

[Xiaofan Chen]

On Thu, Feb 2, 2012 at 8:20 PM, Pete Batard <pete at akeo.ie> wrote:
> Some timings, so that you can feel the pain of Windows users.
>
> Exact same machine (triple boot, with Win7 x64, Slackware Linux 13.37 and
> <cough>intosh Snow Leopard). Core2 6400  @2.13GHz with 4 GB RAM.
>
> All done using current libusb-pbatard, starting with a clean tree.
> ----------------------------------------------------------------------
> [Linux 3.0.1 SMP x86_64]
>
> time ./autogen.sh
> real    0m12.813s
> user    0m5.524s
> sys     0m1.404s
>
> time ./configure
> real    0m4.304s
> user    0m1.489s
> sys     0m1.024s
>
>
> [OS X Snow Leopard, with X-Code]
>
> real    0m18.355s
> user    0m9.166s
> sys     0m5.011s
>
> real    0m6.852s
> user    0m2.355s
> sys     0m3.713s
>
>
> [MinGW32 + msys 1.0 (Win7 x64)]
>
> time ./autogen.sh
> real    1m51.493s
> user    0m17.783s
> sys     0m48.862s
>
> time ./configure
> real    1m14.132s
> user    0m10.247s
> sys     0m34.180s
>
>
> [MinGW-w64 + msys 1.0 (Win7 x64)]
>
> time ./autogen.sh
> real    1m47.656s
> user    0m17.783s
> sys     0m47.065s
>
> time ./configure
> real    1m16.518s
> user    0m10.560s
> sys     0m33.927s
>
>
> [cygwin (Win7 x64)]
>
> time ./autogen.sh
> real    3m10.458s
> user    0m20.536s
> sys     0m54.453s
>
> time ./configure
> real    2m1.571s
> user    0m10.853s
> sys     0m37.734s
> ----------------------------------------------------------------------
>
> And don't get me started on the configure from libcdio, that takes about
> double the time to run, so libusb is actually not that complex.
>

This is in line with my experiences.
In terms of speed in this case,
Linux > Mac OS X >> MSys > Cygwin



-- 
Xiaofan