mac OS X 10.5.7 rgdal installation problems

 require(rgdal)

sudo R CMD install --configure-args='--with-proj-include=/sw/bin/proj'
rgdal_0.6-9.tar.gz
* Installing to library '/Library/Frameworks/R.framework/Resources/library'
* Installing *source* package 'rgdal' ...
gdal-config: gdal-config
checking for gcc... gcc -arch i386 -std=gnu99
checking for C compiler default output file name... configure: error:
C compiler cannot create executables
See `config.log' for more details.
ERROR: configuration failed for package 'rgdal'
* Removing '/Library/Frameworks/R.framework/Resources/library/rgdal'

there is a C compiler problem?  I have XCode  3.1.2.

Stephen Sefick

On Thu, Jul 2, 2009 at 10:05 AM, stephen sefick<ssefick at gmail.com> wrote:

 platform       i386-apple-darwin8.11.1
 arch           i386
 os             darwin8.11.1
 system         i386, darwin8.11.1
 status
 major          2
 minor          9.1
 year           2009
 month          06
 day            26
 svn rev        48839
 language       R
 version.string R version 2.9.1 (2009-06-26)

 gdal-config, proj, and ogr are in my path.  I type them at the shell
 prompt and they work.  They were installed using fink so they are in
 the /sw/bin directory.  The installation did not work without
 configuration flags and gave me the same error message that is at the
 end of the transcript, so I decided to tell R CMD install where proj
 was.  Below is the transcript of my session:

 sudo R CMD install --configure-args='--with-proj=/sw/bin/proj'
 rgdal_0.6-9.tar.gz
 Password:
 * Installing to library '/Library/Frameworks/R.framework/Resources/library'
 * Installing *source* package 'rgdal' ...
 gdal-config: gdal-config
 checking for gcc... gcc -arch i386 -std=gnu99
 checking for C compiler default output file name... a.out
 checking whether the C compiler works... yes
 checking whether we are cross compiling... no
 checking for suffix of executables...
 checking for suffix of object files... o
 checking whether we are using the GNU C compiler... yes
 checking whether gcc -arch i386 -std=gnu99 accepts -g... yes
 checking for gcc -arch i386 -std=gnu99 option to accept ANSI C... 
none needed
 checking how to run the C preprocessor... gcc -arch i386 -std=gnu99 -E
 checking for egrep... grep -E
 checking for ANSI C header files... rm: conftest.dSYM: is a directory
 rm: conftest.dSYM: is a directory
 yes
 checking for sys/types.h... yes
 checking for sys/stat.h... yes
 checking for stdlib.h... yes
 checking for string.h... yes
 checking for memory.h... yes
 checking for strings.h... yes
 checking for inttypes.h... yes
 checking for stdint.h... yes
 checking for unistd.h... yes
 checking proj_api.h usability... no
 checking proj_api.h presence... no
 checking for proj_api.h... no
 Error: proj_api.h not found.
 If the PROJ.4 library is installed in a non-standard location,
 use --configure-args='--with-proj-include=/opt/local/include'
 > for example, replacing /opt/local/* with appropriate values
 for your installation. If PROJ.4 is not installed, install it.
 ERROR: configuration failed for package 'rgdal'
 * Removing '/Library/Frameworks/R.framework/Resources/library/rgdal'

 any help would be greatly appreciated.

--
Stephen Sefick

Let's not spend our time and resources thinking about things that are
so little or so large that all they really do for us is puff us up and
make us feel like gods.  We are mammals, and have not exhausted the
annoying little problems of being mammals.

							-K. Mullis