Now on with the build:
make
make install
It may take a little while to build depending on your platform.
After that you can try to run QGIS:
$HOME/apps/bin/qgis
If all has worked properly the QGIS application should start up and appear
on your screen. If you get the error message "error while loading shared libraries",
execute this command in your shell.
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${HOME}/apps/lib/
3.8. Building Debian packages
=============================
Instead of creating a personal installation as in the previous step you can
also create debian package. This is done from the QGIS root directory, where
you'll find a debian directory.
First you need to install the debian packaging tools once:
apt-get install build-essential
First you need to create an changelog entry for your distribution. For example
for Ubuntu Precise:
dch -l ~precise --force-distribution --distribution precise "precise build"
The QGIS packages will be created with:
dpkg-buildpackage -us -uc -b
/!\ Note: Install devscripts to get dch.
/!\ Note: If dpkg-buildpackage complains about unmet build dependencies
you can install them using apt-get and re-run the command.
/!\ Note: If you have libqgis1-dev installed, you need to remove it first
using dpkg -r libqgis1-dev. Otherwise dpkg-buildpackage will complain about a
build conflict.
/!\ Note: By default tests are run in the process of building and their
results are uploaded to
http://dash.orfeo-toolbox.org/index.php?project=QGIS.
You can turn the tests off using DEB_BUILD_OPTIONS=nocheck in front of the
build command. The upload of results can be avoided with DEB_TEST_TARGET=test.
The packages are created in the parent directory (ie. one level up).
Install them using dpkg. E.g.:
sudo debi
3.9. Building QGIS with Qt 5.x
==============================
/!\ Warning: Qt 5 is not officially supported. Building against Qt 5
libraries seems to work quite well already but be prepared that you are one
of very few with this setup. We strongly recommend using QGIS with Qt 4 for
production work.
Python bindings in particular are not expected to be compatible. When Qt 5
is enabled, the build system automatically activates Python 3 and PyQt5 as well.
There are no plugins and not even the python code shipped along the QGIS source
code is compatible with PyQt5.
You have been warned.
3.10. On Debian Linux
=====================
We assume that you have the source code of QGIS ready and created a new
subdirectory called `build` or `build-qt5` in it.
