[gdal-dev] Re: rgdal source code

Jason Roberts jason.roberts at duke.edu
Mon Mar 29 11:12:47 EDT 2010 

Roger,

Thanks for the info. I have never built GDAL with MSYS before, only with the
various Microsoft compilers. The GDAL team provides pre-configured build
environments for those compilers that produce the library with names
gdal16.dll, gdal17.dll, etc. I assumed that it would work that way for other
compilers as well. In any case, I have some interest in the architecture of
rgdal and may follow up with you about it in the future.

My colleagues and I would like to see rgdal on 64-bit Windows but
unfortunately we cannot contribute any time to porting it. However, we do
have at least one 64-bit server and if you are blocked on access to a
suitable machine, I might be able to arrange for you to use ours via Windows
Remote Desktop. The machine is currently running the 32-bit OS so our IT
guys would have to reinstall it. This would likely take some time to
schedule so I don't know that it could be done soon enough for you to make
the R 2.11 date. But if you are interested, contact me offline and I'll see
what can be done.

Best,

Jason

-----Original Message-----
From: Roger Bivand [mailto:Roger.Bivand at nhh.no] 
Sent: Friday, March 26, 2010 2:51 PM
To: Jason Roberts
Cc: gdal-dev at lists.osgeo.org
Subject: RE: [gdal-dev] Re: rgdal source code

On Fri, 26 Mar 2010, Jason Roberts wrote:

> Roger,
>
> Pardon me for interrupting with a question I've had for a while but not
> asked you.
>
> On Windows at least, it appears that rgdal renames the GDAL shared library
> (e.g. gdal16.dll) to an rgdal-specific name (e.g. libgdal-1.dll). On
> windows, this has the advantage of avoiding DLL name collisions, allowing
> rgdal to coexist with other libraries that also load GDAL using its
> traditional name (e.g. gdal16.dll). Is that why rgdal renamed the shared
> library? Or was it done for another reason?

Jason,

No, it is the name it gets when built under MSYS by default, nothing 
cleverer than that, I'm afraid!

This is a different question entirely, but a heads-up might be worthwhile. 
When R 2.11 arrives in three weeks time, there will be a 64-bit Windows 
version. Because of the external dependencies on expat, proj4, and GDAL, 
rgdal is one of only a very small group of CRAN packages that is not 
available as a 64-bit Windows binary. It would be very useful if 64-bit 
Windows users got together and figured out how to make a bundle of 64-bit 
DLLs that could automate the CRAN Windows build of rgdal also for 64-bit 
Windows. R is built with MinGW, so in the MSYS family. I have no access to 
such a Windows platform, but have some advice from Brian Ripley, and one 
interested helper. The more the merrier!

Roger

>
> Thanks,
>
> Jason
>
> -----Original Message-----
> From: gdal-dev-bounces at lists.osgeo.org
> [mailto:gdal-dev-bounces at lists.osgeo.org] On Behalf Of Roger Bivand
> Sent: Friday, March 26, 2010 11:09 AM
> To: Ivan Lucena
> Cc: gdal-dev at lists.osgeo.org
> Subject: Re: [gdal-dev] Re: rgdal source code
>
> On Fri, 26 Mar 2010, Ivan Lucena wrote:
>
>> Roger,
>>
>> Yes, you are right. The source code is on  rgdal_0.6-25.tar.gz, I know,
> but the instructions to build on Windows are on the rgdal_0.6-25.zip
package
> on README.windows, where it says:
>>
>> ---
>> The R Windows binary rgdal package is built against an FWTools Windows
> binary, using VC++.
>>
>> Notes:
>>
>> Building rgdal.dll in rgdal/src:
>>
>> cl /MT /Ox /EHsc /D "WIN32" /c /I E:\rsb\R\R-2.2.1pat\include /I
> C:\Programfiler\FWTools1.0.0a7\incl
>> ude *.cpp
>>
>> link /dll /out:rgdal.dll /def:RGDAL.def gdal-bindings.obj ogr_geom.obj
> ogr_proj.obj ogrsource.obj E:
>> \rsb\R\R-2.2.1pat\lib\Rdll.lib
> /libpath:"C:\Programfiler\FWTools1.0.0a7\lib" gdal_i.lib
>> ---
>>
>> So I am trying to change it a little bit in order to build against GDAL
> 1.7.1 (or trunk).
>>
>> How does that sounds to you? Good idea?
>
> Ivan,
>
> No, the README.windows file is of course in the source tarball, in the
> inst directory (as usual for R packages).
>
> If you install the Windows binary, you'll see that it includes GDAL 1.7.1,
> that is the message reporting the GDAL runtime version shown when the
> package is loaded. The only reason for doing anything at all is if you
> need drivers not already provided for your own purposes. Then you might
> need to review the README.windows file and, for example, build against
> current FWTools or OSGEO4W distributions. Please do check the drivers
> first with ogrDrivers() and gdalDrivers() in R after loading the package.
>
> Roger
>
>>
>> Regards,
>>
>> Ivan
>>
>>
>>>  -------Original Message-------
>>>  From: Roger Bivand <Roger.Bivand at nhh.no>
>>>  To: gdal-dev at lists.osgeo.org
>>>  Subject: [gdal-dev] Re: rgdal source code
>>>  Sent: Mar 26 '10 09:31
>>>
>>>
>>>  The root cause of the sourceforge issue is in a message posted
> 2010-03-25
>>>  from their admin:
>>>
>>>  "Update on the current CVS outage that is affecting projects whose UNIX
>>>  names start with the letters  a, e, h, i, m, o, r, s, w, z.
>>>
>>>  The work being done on this server may take up to two days to resolve.
> We?re
>>>  working to resolve this with alacrity and assure maximum stability and
>>>  performance."
>>>
>>>  So access should be back by the end of March.
>>>
>>>  Roger
>>>
>>>
>>>  Roger Bivand wrote:
>>>>
>>>> On Thu, 25 Mar 2010, Ivan wrote:
>>>>
>>>>> Roger,
>>>>>
>>>>> I in fact did my homework, but I've got a C.
>>>>>
>>>>> As you can see on my previous message I did find the RGDAL Source
> Forge
>>>>> page
>>>>> where it shows the CVS instructions ===> [1] <===. That would give a
> B+
>>>>> at
>>>>> least, no? If it worked.
>>>>>
>>>>> cvs -d:pserver:anonymous at rgdal.cvs.sourceforge.net:/cvsroot/rgdal
> login
>>>>> Logging in to
>>>>> :pserver:anonymous at rgdal.cvs.sourceforge.net:2401/cvsroot/rgdal
>>>>> CVS password:
>>>>> cvs [login aborted]: connect to
>>>>> rgdal.cvs.sourceforge.net(216.34.181.108):2401 failed: Connection
> refused
>>>>>
>>>>> That was a dead end.
>>>>
>>>> Correct. When I tried, anonymous checkout from sourceforge was also
>>>> blocked - nothing we've done, maybe something sourceforge has done. I
> have
>>>> changed the main description to:
>>>>
>>>> "WARNING: rgdal is only available for download from CRAN - this
> repository
>>>> is only used for development and browsing of source code. NEVER use the
>>>> very out of date file bundles for download from this site!!! See
>>>> http://rgdal.sourceforge.net for link."
>>>>
>>>> Short of migrating to R-forge (which I have done for another R package,
>>>> spdep), there isn't much that can be done with sourceforge, I'm afraid
>>>> (sourceforge isn't my favorite place to be).
>>>>
>>>> cc: Tim: Any idea why the anonymous checkout fails? Longer term - is
>>>> migration to SVN on R-Forge worth considering?
>>>>
>>>> Roger
>>>>
>>>>>
>>>>> I download some of those zip packages from rgdal.sourceforge.net but
> they
>>>>> only have binary that requires FWTools installation.
>>>>>
>>>>> Another dead end.
>>>>>
>>>>> But you are right I should have search a little more to find the CRAN
>>>>> page.
>>>>> So I am downloading rgdal_0.6-2.5.zip now. Let's see how it goes.
>>>>>
>>>>
>>>> That is the current Windows CRAN binary, get rgdal_0.6-25.tar.gz for
> the
>>>> source. Install the Windows binary within R - do *not* treat the zip
>>>> archive as an archive - it is just a frozen binary version of the
> source
>>>> for Windows.
>>>>
>>>> Roger
>>>>
>>>>> Thanks you so very much Roger. Have a nice day.
>>>>>
>>>>> Ivan
>>>>>
>>>>> Roger Bivand wrote:
>>>>>> Please, do your homework!
>>>>>>
>>>>>> Google on "R rgdal" gives:
>>>>>>
>>>>>> http://cran.r-project.org/web/packages/rgdal/index.html
>>>>>>
>>>>>> http://rgdal.sourceforge.net/
>>>>>>
>>>>>> where the latter says: "The R contributed package rgdal is available
>>>>>> from
>>>>>> CRAN", that is the first link. On CRAN you will find both the source
>>>>>> tarball
>>>>>> and a Windows 32-bit binary including 1.7.1 with standard drivers and
>>>>>> expat
>>>>>> for reading KML etc.
>>>>>> The sourceforge site is used exclusively as a CVS repository for
>>>>>> developers
>>>>>> - it hasn't been used for software distribution since about 2004; the
>>>>>> CRAN
>>>>>> distribution mechanism is far more robust and "just works".
>>>>>>
>>>>>> Refer to show.file(system.file("README.windows", package="rgdal")) if
>>>>>> you
>>>>>> need to build from source for more exotic drivers.
>>>>>>
>>>>>> The relevant mailing list is R-sig-geo,
>>>>>> https://www.stat.math.ethz.ch/mailman/listinfo/R-SIG-Geo/, and the
> best
>>>>>> point of entrance, the R Spatial task view:
>>>>>> http://cran.r-project.org/web/views/Spatial.html.
>>>>>>
>>>>>> Hope this helps,
>>>>>>
>>>>>> Roger
>>>>>>
>>>>>>
>>>>>>
>>>>>> Ivan-5 wrote:
>>>>>>> Hi there,
>>>>>>>
>>>>>>> I am trying to get RGDAL to work with GDAL 1.7.1 but I cannot access
>>>>>>> the
>>>>>>> source code [1] and the binaries for Windows depend on some old
> version
>>>>>>> of
>>>>>>> gdal_fw.dll. Does anybody have any clue?
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> Ivan
>>>>>>>
>>>>>>>
>>>>>>> [1] - http://sourceforge.net/scm/?type=cvs&group_id=84716
>>>>>>> _______________________________________________
>>>>>>> gdal-dev mailing list
>>>>>>> gdal-dev at lists.osgeo.org
>>>>>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> -----
>>>>>> Roger Bivand
>>>>>> Economic Geography Section
>>>>>> Department of Economics
>>>>>> Norwegian School of Economics and Business Administration
>>>>>> Helleveien 30
>>>>>> N-5045 Bergen, Norway
>>>>>>
>>>>>
>>>>>
>>>>
>>>> --
>>>> Roger Bivand
>>>> Economic Geography Section, Department of Economics, Norwegian School
> of
>>>> Economics and Business Administration, Helleveien 30, N-5045 Bergen,
>>>> Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
>>>> e-mail: Roger.Bivand at nhh.no
>>>>
>>>> _______________________________________________
>>>> gdal-dev mailing list
>>>> gdal-dev at lists.osgeo.org
>>>> http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>>
>>>>
>>>
>>>
>>>  -----
>>>  Roger Bivand
>>>  Economic Geography Section
>>>  Department of Economics
>>>  Norwegian School of Economics and Business Administration
>>>  Helleveien 30
>>>  N-5045 Bergen, Norway
>>>
>>>  --
>>>  View this message in context:
> http://n2.nabble.com/gdal-dev-rgdal-source-code-tp4799954p4804208.html
>>>  Sent from the GDAL - Dev mailing list archive at Nabble.com.
>>>  _______________________________________________
>>>  gdal-dev mailing list
>>>  gdal-dev at lists.osgeo.org
>>>  http://lists.osgeo.org/mailman/listinfo/gdal-dev
>>>
>>
>
>

-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no

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