[osgeo4w-dev] [Qgis-developer] 64bit Windows version

Alex Mandel tech_dev at wildintellect.com
Fri Nov 16 01:24:05 PST 2012

I have brought it up a few times on the osgeo4w list, we might even have
a ticket for it.

Mostly a one time investment to get all the deps and extras built, or
figure out and document how to build them. Right now osgeo4w is
maintained by a very small team.

My approach is that we should create a parallel branch of osgeo4w for
the 64 bit versions, call it beta or whatever while we work on getting
everything added and make it so people can install both 32 and 64 on the
same computer without issue.


On 11/16/2012 12:10 AM, Marco Hugentobler wrote:
> Hi
> It is not difficult to compile a 64bit windows version, since most of
> the dependencies are available from gisinternals(
> http://www.gisinternals.com/sdk/ ).
> The difficulty is more in the detail:
> - GRASS : I don't have experience with compilation for 64bit
> - Formats like sid, ecw
> - Interlis support (important here in Switzerland)
> Therefore I think it would be best if osgeo4w could have a 64bit version.
> Regards,
> Marco
> On 16.11.2012 08:49, Bernhard Ströbl wrote:
>> Hi Andreas,
>> thanks for the move. We would definitely be interested in a Win64 bit
>> version sometime next year.
>> Bernhard
>> Am 16.11.2012 08:39, schrieb Andreas Neumann:
>>> Hi all,
>>> Wouldn't it be good to offer 64bit Windows versions from QGIS version
>>> 2.0 on? Most new and many existing Windows PCs are 64bit Windows these
>>> days.
>>> I don't expect someone to work for free on it, but if an estimate could
>>> be done how many hours of work it would mean to put together a 64bit
>>> OSGeo4W and standalone viewer, we could start collecting money to make
>>> it happen. There should be enough Windows users out there with a strong
>>> interest in the 64bit version.
>>> Question: is this more a one-time investment or would it mean a lot of
>>> work further on, maintaining the two versions, 32bit and 64bit?
>>> Other opinions?
>>> Andreas
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