前言：QGIS是一个用Qt框架写的开源桌面GIS工具。无论从学习GIS还是学习QT的角度它都是一个很好的工具。本文简介在ubuntu环境下编译QGIS源代码的方法。
参考链接：
http://gvision.info/using-qtcreator-with-qgis/
http://hub.qgis.org/projects/quantum-gis/repository/revisions/master/entry/INSTALL
环境：Ubuntu 11.10
一、依赖的工具集：
- CMake >= 2.6.2
- Flex
- Bison >= 2.4
二、依赖库：
- Qt >= 4.4.0
- Proj >= 4.4.x
- GEOS >= 3.0
- Sqlite3 >= 3.0.0
- GDAL/ORG >= 1.4.x
- Qwt >= 5.0
可选依赖库：
- For GRASS plugin - GRASS >= 6.0.0 (libraries compiled with exceptions support on Linux 32bit)
- for georeferencer - GSL >= 1.8
- for postgis support and SPIT plugin - PostgreSQL >= 8.0.x
- for gps plugin - expat >= 1.95 and gpsbabel
- for mapserver export and PyQGIS - Python >= 2.3 (2.5+ preferred)
- for python support - SIP >= 4.8, PyQt >= must match Qt version
- for qgis mapserver - FastCGI
三、编译QGIS所需的依赖库在Ubuntu的 "universe"组件里，这个组件默认是关闭的，为了编译QGIS必须激活：
1、编辑 /etc/apt/sources.list 文件
2、打开所有以 "deb"开头的行
3、更新sources库， 在命令行里输入：sudo apt-get update
四、安装第一部分提到的依赖库
注意：这里有不同的发行版本， 安装命令也会相应有些差别， 根据自己的需要选择 lucid, maverick, natty, oneiric, precise, sid, squeeze, 或是wheezy.
|| Distribution | install command for packages |
| lucid | ``apt-get install bison cmake doxygen flex git-core graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libpq-dev libproj-dev libqt4-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| maverick | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libpq-dev libproj-dev libqt4-dev libqtwebkit-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| natty | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libpq-dev libproj-dev libqt4-dev libqtwebkit-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| oneiric | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libpq-dev libproj-dev libqt4-dev libqtwebkit-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| precise | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libopenscenegraph-dev libosgearth-dev libpq-dev libproj-dev libqt4-dev libqt4-opengl-dev libqtwebkit-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| sid | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libopenscenegraph-dev libosgearth-dev libpq-dev libproj-dev libqt4-dev libqt4-opengl-dev libqtwebkit-dev libqwt-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| squeeze | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libpq-dev libproj-dev libqt4-dev libqwt5-qt4-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |
| wheezy | ``apt-get install bison cmake doxygen flex git graphviz grass-dev libexpat1-dev libfcgi-dev libgdal1-dev libgeos-dev libgsl0-dev libopenscenegraph-dev libosgearth-dev libpq-dev libproj-dev libqt4-dev libqt4-opengl-dev libqtwebkit-dev libqwt-dev libspatialindex-dev libspatialite-dev libsqlite3-dev pkg-config pyqt4-dev-tools python python-dev python-qt4 python-qt4-dev python-sip python-sip-dev txt2tags xauth xfonts-base xvfb`` |五、git
git是一个类似与SVN的版本控制工具， qgis的源代码是用git管理的， 你可以在ubuntu software center 或是用命令行安装git工具。
在 home文件夹下面创建dev/cpp文件夹， 将QGIS的源代码放到这个目录下：
cd ${home}/dev/cpp
git clone git://github.com/qgis/Quantum-GIS.git
推荐的一种得到源代码的途径是直接到QGIS的官方网站下载，这里建议下载 release的稳定版本（笔者经验，master版本有时候编译会出问题，当前是版本是1.7.4）。因为用git从sourceforge上面checkout出来的是不稳定的版本,编译过程可能出现问题。
六、编译源代码（可以选择两种编译方式，如果你的目的还包括改写qgis源代码，可以用第二种QtCreator编译）
（一）命令行编译
1、创建目录${home}/apps
mkdir -p ${HOME}/apps
2、创建一个build目录，并且运行 ccmake
cd Quantum-GIS
mkdir build-master
cd build-master
ccmake ..
当运行ccmake的时候(..是必须的)，会出现一个配置菜单，修改CMAKE_INSTALL_PREFIX为 ${home}/apps.按c开始配置,有时候需要按几次c才会出现g，让你生成make file.
3、build
命令行输入
make
make install
4、运行
$home/apps/bin/qgis
如果编译成功，QGIS就会成功运行。
（二）QtCreator编译
1、重新解压出来一份源代码（不要用用过第一种方法编译的那套代码）
2、打开QtCreator
File->Open File or Project
找到源代码的根目录，里面应该有CMakeLists.txt.打开。会出现下图选择build的目录
按Next出现下图设置cmake参数 -DCMAKE_BUILD_TYPE=Debug
点击Run CMake会自动生成相应的makefiles.然后点击Finish.
3、设置build环境
点击Projects->Build Settings->Add Build Step->Custom Process Step,设置如下图：
默认情况下，QGIS会安装在/usr/local, 此时需要设置你对该目录具有读写权限。
4、设置运行环境，Run Settings（在Build Settings旁边）。
覆盖默认的可执行文件，点击Add,选择Custom Executable，
Executable: /usr/local/bin/qgis Arguments : Working directory: $HOME Run in terminal: [no] Debugger: C++ [yes] Qml [no]点击Rename,设置可执行文件的名字为Installed QGIS或是其他你喜欢的名字。
设置如下图：
5、运行和调试， 设置断点后，点击Start Debugging按钮，即可进入调试模式。