[R] rgdal on a Mac

[Roger Bivand]

On Thu, 7 Sep 2006, Jonathan Boyd Thayn wrote:

> I am trying to install the rgdal package on my Mac OS X 3.9.  I 
> downloaded and installed the GDAL libraries from Fink and then tried to 
> install rgdal and got the following message.  I tried to determine if 
> the GDAL libraries were in my path but I'm not sure how to do that.  
> Any ideas?  Thanks.
> 

(The R-sig-geo mailing list may be a more appropriate place to look for an 
answer)

Unfortunately, I as maintainer of the package have no access to OSX. I do 
know that OSX users have installed rgdal successfully, and installation 
instructions are on the Rgeo website:

http://www.sal.uiuc.edu/tools/tools-sum/rgeo/rgeo-detail/map-packages-on-cran

"OSX: The rgdal source package from CRAN can be installed on OSX by first 
installing PROJ.4 and GDAL, then installing sp, and finally download the 
source package tarball to a suitable temporary location, and install with 
R CMD INSTALL ... your options ... rgdal*.tar.gz. Your options give the 
locations, if required, of --with-gdal-config=, --with-proj-include=, 
and/or --with-proj-lib=, all within --configure-args='' as described in 
section 1.2.2 of the ''Writing R extensions'' manual."

But this presupposes that you can find the installed software on your 
system yourself, something that is difficult to do at a distance. If OSX 
has the locate utility, you could run it in a terminal, or search for the 
files needed (in Finder??), but an OSX user would know the correct way 
forward. I expect that you have installed PROJ.4 too - do either of 
proj -lp or gdalinfo --formats or ogrinfo --formats at a terminal prompt 
say anything useful to indicate that the applications using the libraries 
are available and working?

> 
> trying URL 
> 'http://www.biometrics.mtu.edu/CRAN/src/contrib/rgdal_0.4-10.tar.gz'
> Content type 'application/x-gzip' length 4009531 bytes
> opened URL
> ==================================================
> downloaded 3915Kb
> 
> * Installing *source* package 'rgdal' ...
> gdal-config: gdal-config
> ./configure: line 1: gdal-config: command not found
> 
> The gdal-config script distributed with GDAL could not be found.
> If you have not installed the GDAL libraries, you can
> download the source from  http://www.gdal.org/
> If you have installed the GDAL libraries, then make sure that
> gdal-config is in your path. Try typing gdal-config at a
> shell prompt and see if it runs. If not, use:
>   --configure-args='--with-gdal-config=/usr/local/bin/gdal-config' echo 
> with appropriate values for your installation.
> 
> 
> The downloaded packages are in
> 	/private/tmp/Rtmp9zhfAK/downloaded_packages
> ** Removing 
> '/Library/Frameworks/R.framework/Versions/2.2/Resources/library/rgdal'
> ** Restoring previous 
> '/Library/Frameworks/R.framework/Versions/2.2/Resources/library/rgdal'
> ERROR: configuration failed for package 'rgdal'
> 
> 
> Jonathan B. Thayn
> Kansas Applied Remote Sensing (KARS) Program
> University of Kansas
> Higuchi Hall
> 2101 Constant Avenue
> Lawrence, Kansas 66047-3759
> jonthayn at ku.edu
> www.kars.ku.edu/about/people/thayn/JonSite/Welcome.html
> 	[[alternative text/enriched version deleted]]
> 
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> 

-- 
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