On Mac OS X you can install the “GDAL Complete” Framework from kyngchaos.com.
GDAL applications are run through the Mac OS X Terminal. The first time you install the GDAL package there is one additional step to make sure you can access these programs. Open the Terminal application and run the following commands:
echo 'export PATH=/Library/Frameworks/GDAL.framework/Programs:$PATH' >> ~/.bash_profile
source ~/.bash_profile
You should now be ready to go. To test your installation, run the Terminal command gdalinfo --version. A correct installation will output something like GDAL 1.9.0, released 2011/12/29.
