for building from source: GDAL >= 1.3.1 library from http://www.gdal.org/download.html and PROJ.4 (proj >= 4.4.9) from http://proj.maptools.org/

for building from source: GDAL >= 1.3.1 && GDAL < 1.6.0 (until tested) library from http://www.gdal.org/download.html and PROJ.4 (proj >= 4.4.9) from http://proj.maptools.org/

for building from source: GDAL >= 1.3.1 library from http://trac.osgeo.org/gdal/wiki/DownloadSource and PROJ.4 (proj >= 4.4.9) from http://trac.osgeo.org/proj/; GDAL OSX frameworks built by William Kyngesburye at http://www.kyngchaos.com/ may be used for source installs on OSX, rgdal OSX binary packages are also available at the same site.

Provides bindings to Frank Warmerdam's Geospatial Data
Abstraction Library (GDAL) (>= 1.3.1) and access to
projection/transformation operations from the PROJ.4 library.
The GDAL and PROJ.4 libraries are external to the package, and,
when installing the package from source, must be correctly
installed first. Both GDAL raster and OGR vector map data can
be imported into R, and GDAL raster data and OGR vector data
exported. Use is made of classes defined in the sp package.
Timothy H. Keitt <tkeitt@mail.utexas.edu>, Roger Bivand
<Roger.Bivand@nhh.no>, Edzer Pebesma <e.pebesma@geo.uu.nl>,
Barry Rowlingson
for building from source: GDAL >= 1.3.1 library
from http://trac.osgeo.org/gdal/wiki/DownloadSource and PROJ.4
(proj >= 4.4.9) from http://trac.osgeo.org/proj/; GDAL OSX
frameworks built by William Kyngesburye at
http://www.kyngchaos.com/ may be used for source installs on
OSX, rgdal OSX binary packages are also available at the same
site.

Provides bindings to Frank Warmerdam's Geospatial Data
Abstraction Library (GDAL) (>= 1.3.1) and access to
projection/transformation operations from the PROJ.4 library.
The GDAL and PROJ.4 libraries are external to the package, and,
when installing the package from source, must be correctly
installed first. Both GDAL raster and OGR vector map data can
be imported into R, and GDAL raster data and OGR vector data
exported. Use is made of classes defined in the sp package.
rgdal binaries for Win64 and OSX are available from the CRAN
(extras) repository.
Timothy H. Keitt <tkeitt@mail.utexas.edu>, Roger Bivand
<Roger.Bivand@nhh.no>, Edzer Pebesma
<edzer.pebesma@uni-muenster.de>, Barry Rowlingson
for building from source: GDAL >= 1.3.1 library
from http://trac.osgeo.org/gdal/wiki/DownloadSource and PROJ.4
(proj >= 4.4.9) from http://trac.osgeo.org/proj/; GDAL OSX
frameworks built by William Kyngesburye at
http://www.kyngchaos.com/ may be used for source installs on
OSX.