[Coin-discuss] Cygwin on 64 bit

[Ted Ralphs]

I have successfully  built Bonmin under CYGWIN on a 64-bit Windows
machine. I don't recall having to do anything out of the ordinary to
get it to work. As far as I know, there is no 64-bit version of
CYGWIN, so if you're using the gcc that comes with CYGWIN, it's
actually 32-bit and shouldn't behave any differently than on a 32-bit
machine. Actually, there are two different packages that give you gcc.
Make sure you are using the "gcc4" package, not the "gcc" package.

If you want to produce bonified 64-bit executables, that is a
challenge. I believe there are version of gcc for Windows that will
run under CYGWIN and will produce 64-bit binaries out there if you do
some digging, but I have never succeeded in building COIN with any of
these. A better bet is to cross-compile in Linux. I had that working
at some point, but it's been a while.

If you just want to get the build working with standard CYGWIN gcc and
installing the gcc4 package doesn't work, you'll have to be more
specific about exactly how you're building the code.

Cheers,

Ted

On Wed, Jul 21, 2010 at 1:50 PM, Lou Hafer <lou at cs.sfu.ca> wrote:
> Smitha,
>
>> Has anyone successfully managed to configure Bonmin on cygwin (64 bit
>> windows)? I have been trying and the make is not creating any executables.
>
>        I haven't tried this personally, but might be able to offer some
>        suggestions if you can provide some logs. What do you see in the
>        output from configure and make? Any error messages?
>
>        Building on cygwin is not entirely straightforward. If you haven't
>        checked already, look at the troubleshooting hints here:
> https://projects.coin-or.org/BuildTools/wiki/user-troubleshooting#Troubleshootin
> g
>
>        Also, you might want to try this question on the bonmin mailing
>        list (bonmin at list.coin-or.org).
>
>                                                        Lou
>
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-- 
Dr. Ted Ralphs
Associate Professor, Lehigh University
(610) 628-1280
ted 'at' lehigh 'dot' edu
coral.ie.lehigh.edu/~ted