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added grass/qgis build instruction for ecw and mrsid written by Giova…

…nni Manghi

git-svn-id: http://svn.osgeo.org/qgis/trunk/qgis@10870 c8812cc2-4d05-0410-92ff-de0c093fc19c
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dassau
dassau committed Jun 1, 2009
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  1. +298 −0 doc/INSTALL.t2t
@@ -1009,6 +1009,304 @@ $HOME/apps/bin/qgis
If all has worked properly the QGIS application should start up and appear
on your screen.


== A practical case: Building QGIS and GRASS from source on Ubuntu with ECW and MrSID formats support ==

The following procedure has been tested on Ubuntu 8.04, 8.10 and 9.04 32bit. If you want
to use different versions of the software (gdal, grass, qgis), just make the
necessary adjustments to the following code. This guide assumes that you don't have
installed any previous version of gdal, grass and qgis.

=== Step 1: install base packages ===

First you need to install the necessary packages required to download the source
code and compile it. Open the terminal and issue the following command:

```
sudo apt-get install build-essential g++ subversion
```

=== Step 2: compile and install the ecw libraries ===

Go to the ERDAS web site http://www.erdas.com/ and follow the links
"'''products --> ECW JPEG2000 Codec SDK --> downloads'''"
then download the "'''Image Compression SDK Source Code 3.3'''" (you'll need to make a registration
and accept a license).

Uncompress the arquive in a proper location (this guide assumes
that all the downloaded source code will be placed in the user home)
and the enter the newly created folder

```
cd /libecwj2-3.3
```

Compile the code with the standard commands

```
./configure
```

then

```
make
```

then

```
sudo make install
```

leave the folder

```
cd ..
```

=== Step 3: download the MrSID binaries ===

Go to the LIZARDTECH web site http://www.lizardtech.com/ and follow the links
"'''download --> Developer SDKs'''",
then download the "'''GeoExpress SDK for Linux (x86) - gcc 4.1 32-bit'''"
(you'll need to make a registration and accept a license).

Uncompress the downloaded file. The resulting directory name should be similar to "Geo_DSDK-7.0.0.2167"

=== Step 4: compile and install the gdal libraries ===

Download the latest gdal source code

```
svn checkout https://svn.osgeo.org/gdal/trunk/gdal gdal
```

then copy a few files from the MrSID binaries folder to the folder with the gdal source code
('''replace "USERNAME" with your actual account username''')

```
cp /home/USERNAME/Geo_DSDK-7.0.0.2167/include/*.* /home/USERNAME/gdal/frmts/mrsid/
```

enter the gdal source code folder

```
cd /gdal
```

and run configure with a few specific parameters

```
./configure --without-grass --with-mrsid=../Geo_DSDK-7.0.0.2167 --without-jp2mrsid
```

at the end of the configuration process you should read something like

```
...
GRASS support: no
...
...
...
ECW support: yes
MrSID support yes
...
```

then compile normally

```
make
```

and

```
sudo make install
```

finish the process by creating the necessary links to the most recent shared libraries

```
sudo ldconfig
```

at this point you may want to check if gdal was compiled correctly with MrSID and ECW
support by issuing one (or both) of the following commands

```
gdalinfo --formats | grep 'ECW'
```

```
gdalinfo --formats | grep 'SID'
```

leave the folder

```
cd ..
```

=== Step 5: compile and install GRASS ===

Before downloading and compile GRASS source code you need to install a few
other libraries and programs. We can do this trough apt

```
sudo apt-get install flex bison libreadline5-dev libncurses5-dev lesstif2-dev debhelper dpatch libtiff4-dev \
tcl8.4-dev tk8.4-dev fftw-dev xlibmesa-gl-dev libfreetype6-dev autoconf2.13 autotools-dev \
libgdal1-dev proj libjpeg62-dev libpng12-dev libpq-dev unixodbc-dev doxygen fakeroot cmake \
python-dev python-qt4-common python-qt4-dev python-sip4 python2.5-dev sip4 libglew1.5-dev libxmu6 \
libqt4-dev libgsl0-dev python-qt4 swig python-wxversion python-wxgtk2.8 libwxgtk2.8-0 libwxbase2.8-0 tcl8.4-dev \
tk8.4-dev tk8.4 libfftw3-dev libfftw3-3
```

At this point we can get the GRASS source code: you may want to download it
trough svn or maybe you want just to download the latest available source code arquive.
For example the GRASS 6.4rc4 is available at http://grass.itc.it/grass64/source/grass-6.4.0RC4.tar.gz

Uncompress the arquive, enter the newly created folder and run configure with a few specific parameters

```
./configure --with-tcltk-includes=/usr/include/tcl8.4 --with-proj-share=/usr/share/proj --with-gdal=/usr/local/bin/gdal-config --with-python=/usr/bin/python2.5-config
```

then as usual (it will take a while)

```
make
```

and

```
sudo make install
```

leave the folder

```
cd ..
```

you have now compiled and installed GRASS (also with the new wxpyhton interface) so you
may want to give it a try

```
grass64 -wxpython
```

=== Step 6: compile and install the GDAL-GRASS libraries ===

Create a plain text file named "grass.conf" inside the folder "/etc/ld.so.conf.d"

```
sudo gedit /etc/ld.so.conf.d/grass.conf
```

and add the following line

```
/usr/local/grass-6.4.0RC4/lib/
```

save and exit.

Download the latest version of the gdal-grass library (gdal-grass-1.4.3.tar.gz) from
http://download.osgeo.org/gdal/

uncompress the arquive and enter the newly created folder

```
cd /gdal-grass-1.4.3
```

run configure

```
./configure --with-grass=/usr/local/grass-6.4.0RC4
```

then as usual

```
make
```

and

```
sudo make install
```

and finish the process by creating the necessary links to the most recent shared libraries

```
sudo ldconfig
```

leave the folder

```
cd ..
```

=== Step 6: compile and install QGIS ===

As for GRASS you can obtain the QGIS source code from different sources,
for instance from svn or just by downloading one of the source code arquives available
at http://www.qgis.org/download/sources.html

For example download the QGIS 1.1.0 source code here http://download.osgeo.org/qgis/src/qgis_1.1.0.tar.gz

uncompress the arquive and enter the newly created folder

```
cd /qgis_1.1.0
```

then run ccmake

```
ccmake .
```

press the "c" key, then when the option list will appear we need to manually
configure the "GRASS_PREFIX" parameter. Scroll down until the "GRASS_PREFIX" will appear,
press enter and manually set it to

```
/usr/local/grass-6.4.0RC4
```

then press enter again.

Press the "c" again and the option "Press [g] to generate and exit" will appear.
Press the "g" key to generate and exit.

then as usual (it will take a while)

```
make
```

and

```
sudo make install
```

At the end of the process you should have QGIS and GRASS working with MrSID and ECW
raster format support.

To run QGIS just use this command

```
qgis
```

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