Installation of rgdal from CRAN on MACOSX does not work

Roger,

But
http://www.kyngchaos.com/files/software/frameworks/rgdal-0.6.29-1.zip
installs with no problems on the same machine and on the same R, would that not
discard the possibility of an

issue of your R installation,
possibly a multi-architecture issue

as you suggest?

Please note I'm not personally in a hurry any more as we can work with
the rgdal from kyngchaos.

I just want to report the error to help
having an rgdal installation for MACOSX as
simple as for Windows.
I understand installing from source will always be a bit more
difficult on MACOSX than on linux as there are some basic tools and
libraries that are missing on regular MAC systems that must be
previously installed, but this is not my concern now as I'm focusing
on installations from binaries.

Thanks!

Agus



2010/12/29 Roger Bivand <Roger.Bivand at nhh.no>:

On Wed, 29 Dec 2010, Agustin Lobo wrote:

While the installation from
http://www.kyngchaos.com/files/software/frameworks/rgdal-0.6.29-1.zip
works fine
the installation of rgdal from CRAN on MACOSX does not work, despite
my previous message that this issue was solved as well

Please do read the error message:

?unable to load shared object

'/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal/libs/i$

dlopen(/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal$

6): Library not loaded: libR.dylib
?Referenced from:

/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal/libs/i3$

?Reason: image not found

The image that is not found is libR.dylib, the main R dylib against which
rgdal.so is linked. So this is still an issue of your R installation,
possibly a multi-architecture issue (is libR.dylib the i386 version,
guessing - is libR64.dylib the 64-bit Intel version?).

Could any OSX users who are using CRAN extra rgdal please help Agus to
resolve this - it could be that local path modifications are hiding
libR.dylib, or that R was installed 64-bit only, and the INSTALL_opts=
argument to install.packages() was not set correctly? I assume that the CRAN
extras OSX rgdal binary is built against a standard R OSX Intel install,
which is multi-architecture.

For a fully updated rgdal, the best combination remains installing the full
GDAL framework from Kyngchaos, the full tools collection:

http://r.research.att.com/tools/
http://cran.r-project.org/bin/macosx/tools

and install from CRAN source. For a lab, the instructor would rather build a
local OSX rgdal binary package using the tools collection on one development
machine with all the correct path variables set (R CMD check rgdal; R CMD
INSTALL --build rgdal), paying attention to multi-architectures, and
distribute to lab machines from there. This means that the lab instructor
can keep rgdal updated if need be, as both Kyngchaos and CRAN extras rgdal
OSX binary packages typically lag CRAN source.

Please also note that there are very many very old GDAL binaries out there
that users pick up and apply, missing all the subsequent bug-fixes and
improvements - GDAL 1.8.0 release candidate 1 is now out, so we are looking
at an upgrade to 1.8.0 during January, which Kyngchaos will most likely pick
up quickly, probably with a current rgdal binary.

Roger

(my confusion was a consequence of mixing both installations in the
same session):

setRepositories(ind=1:2)
install.packages("rgdal")

--- Please select a CRAN mirror for use in this session ---
probando la URL

'http://www.stats.ox.ac.uk/pub/RWin/bin/macosx/leopard/contrib/2.12/rgdal_0.6-31.tgz'
Content type 'application/x-gzip' length 10203689 bytes (9.7 Mb)
URL abierta
==================================================
downloaded 9.7 Mb


The downloaded packages are in

?/var/folders/iR/iRxOvaG9F10viNoa7WceNU+++TI/-Tmp-//RtmpqIhqn9/downloaded_packages

require(rgdal)

Loading required package: rgdal
Loading required package: sp
Error in dyn.load(file, DLLpath = DLLpath, ...) :
?unable to load shared object

'/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal/libs/i386/rgdal.so':

?dlopen(/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal/libs/i386/rgdal.so,
6): Library not loaded: libR.dylib
?Referenced from:

/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal/libs/i386/rgdal.so
?Reason: image not found

sessionInfo()

R version 2.12.1 (2010-12-16)
Platform: i386-apple-darwin9.8.0/i386 (32-bit)

locale:
[1] es_ES.UTF-8/es_ES.UTF-8/C/C/es_ES.UTF-8/es_ES.UTF-8

attached base packages:
[1] stats ? ? graphics ?grDevices utils ? ? datasets ?methods ? base

other attached packages:
[1] sp_0.9-76

loaded via a namespace (and not attached):
[1] grid_2.12.1 ? ? lattice_0.19-13 tools_2.12.1

Note that rgdal.so is where it should be:

imac-de-agustin-lobo:~ agustinlobo$ ls -l

/Library/Frameworks/R.framework/Versions/2.12/Resources/library/rgdal/libs/i386/
total 15088
-rwxr-xr-x ?1 agustinlobo ?admin ?7722168 ?4 dic 15:57 rgdal.so

This error is not solved by setting the GDAL path.

Agus

--
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