= GRASS =

The GRASS support can be added to GDAL in two ways:
 * as a built-in GRASS driver
 * as a loadable GRASS driver plugin

'''Note, following instructions apply to Linux and other environments where GNU autotools are available (autoconf, automake, make).'''

== Prerequisites ==

 * Download and install [http://grass.itc.it/ GRASS] together with development files (headers and libraries). The easiest option is to use binary packages prepared for your Linux distribution.

 * Download latest [wiki:DownloadSource#PackagedSource stable] or [wiki:DownloadSource#Subversion development] version of GDAL sources:

{{{
tar -zxf gdal-1.4.1.tar.gz
cd gdal-1.4.1
}}}

== Building GDAL with built-in GRASS driver ==

 * Configure GDAL sources '''with''' GRASS support included:

{{{
./configure --with-grass=/usr/lib/grass
}}}

 and after ./configure finishes its job, you should see the GRASS driver enabled in the summary, like here:

{{{
GDAL is now configured for i686-pc-linux-gnu
...
  GRASS support:             grass57+
...
}}}

 * Build and install GDAL:

{{{
make
make install
}}}

 running last step with root privileges.

 * Now, you can verify if GRASS support is enabled correctly:

{{{
./gdalinfo --formats | grep GRASS
  GRASS (ro): GRASS Database Rasters (5.7+)

./ogrinfo --formats | grep GRASS
  -> "GRASS" (readonly)
}}}

== Building GDAL and GRASS driver plugin ==


 * Configure GDAL sources '''without''' GRASS support:

{{{
./configure --without-grass
}}}