3.9.1. Install build dependencies

dnf install qt5-qtbase-private-devel qt5-qtwebkit-devel qt5-qtlocation-devel qt5-qttools-static qca-qt5-devel qca-qt5-ossl qt5-qt3d-devel python3-qt5-devel python3-qscintilla-qt5-devel qscintilla-qt5-devel python3-qscintilla-devel python3-qscintilla-qt5 clang flex bison geos-devel gdal-devel sqlite-devel libspatialite-devel qt5-qtsvg-devel spatialindex-devel expat-devel proj-devel qwt-qt5-devel gsl-devel postgresql-devel cmake python3-future gdal-python3 python3-psycopg2 python3-PyYAML python3-pygments python3-jinja2 python3-OWSLib qca-qt5-ossl qwt-qt5-devel qtkeychain-qt5-devel qwt-devel sip-devel libzip-devel exiv2-devel

To build QGIS server additional dependencies are required:

dnf install fcgi-devel

Make sure that your build directory is completely empty when you enter the following command. Do never try to "re-use" an existing Qt4 build directory. If you want to use `ccmake` or other interactive tools, run the following command in the empty build directory once before starting to use the interactive tools.

cmake ..

If everything went OK you can finally start to compile. (As usual append a -jX where X is the number of available cores option to make to speed up your build process)

make

Run from the build directory

./output/bin/qgis

Or install to your system

make install

3.9.2. Suggested system tweaks

By default Fedora disables debugging calls from Qt applications. This prevents the useful debug output which is normally printed when running the unit tests.

To enable debug prints for the current user, execute:

cat > ~/.config/QtProject/qtlogging.ini << EOL
[Rules]
default.debug=true
EOL

4.1.1. Visual C++ Community Edition

The free (as in free beer) Community installer is available under:

http://download.microsoft.com/download/D/2/3/D23F4D0F-BA2D-4600-8725-6CCECEA05196/vs_community_ENU.exe

4.1.2. Other tools and dependencies

Download and install following packages:

For the QGIS build you need to install following packages from cygwin:

• bison
• flex
• git

and from OSGeo4W (select Advanced Installation):

• qgis-ltr-deps

This will also select packages the above packages depend on.

If you install other packages, this might cause issues. Particularly, make sure not to install the msinttypes package. It installs a stdint.h file in OSGeo4W[64]\include, that conflicts with Visual Studio own stdint.h, which for example breaks the build of the virtual layer provider.

Earlier versions of this document also covered how to build all above dependencies. If you're interested in that, check the history of this page in the Wiki or the SVN repository.

ninja: copy ninja.exe to d:\OSGeo4W64\bin\

4.1.3. Setting up the Visual Studio project with CMake

/!\ Consider this section as example. It tends to outdate, when OSGeo4W and SDKs move on. ms-windows/osgeo4w/package-nightly.cmd is used for the nightly builds and constantly updated and hence might contain necessary updates that are not yet reflected here.

To start a command prompt with an environment that both has the VC++ and the OSGeo4W variables create the following batch file (assuming the above packages were installed in the default locations):

@echo off
call X:\src\qgis\ms-windows\osgeo4w\msvc-env.bat x86_64
@cmd

Save the batch file as d:\OSGeo4W64\OSGeo4W-dev.bat and run it. On the command prompt checkout the QGIS source from git to the source directory QGIS:

git clone git://github.com/qgis/QGIS.git

And, to avoid Git in Windows reporting changes to files not actually modified:

git config core.filemode false

Using configonly.bat to create the MSVC solution file: We will be using the file ms-windows/osgeo4w/configonly.bat to create an MSVC solution file. There are a few options for a solution file, following are the options: ninja, native MSVC. The advantage of using native MSVC solution is that you can find the root of build problems much easily. configonly.bat is meant to create a configured build directory with a MSVC solution file:

``` configonly.bat ```

Compiling QGIS with MSVC: We will need to run MSVC with all the environment variables set, thus we will run it as follows: Run the batch file OSGeo4W-dev.bat you created before. On the command prompt run: devenv From MSVC, open the solution file d:\OSGeo4W64\QGIS\ms-windows\osgeo4w\build-qgis-test-x86_64\qgis.sln Try to build the solution go grab a cup of tea, it may take a. If it fails, run it again and again until there are [hopefully] no errors.

Running QGIS from within MSVC: Edit the properties of the project ALL_BUILD: Debugging -> Command -> D:\OSGeo4W64\QGIS\ms-windows\osgeo4w\build-qgis-test-x86_64\output\bin\RelWithDebInfo\qgis.exe Run. Ignore the "These projects are out of date" message, it appears even if no files were changed.

Old alternative method that might still work using cmake-gui: Create a 'build' directory somewhere. This will be where all the build output will be generated.

Now run cmake-gui (still from cmd) and in the Where is the source code: box, browse to the top level QGIS directory.

In the Where to build the binaries: box, browse to the 'build' directory you created.

If the path to bison and flex contains blanks, you need to use the short name for the directory (i.e. C:\Program Files should be rewritten to C:\Progra~n, where n is the number as shown in `dir /x C:\``).

Verify that the 'BINDINGS_GLOBAL_INSTALL' option is not checked, so that python bindings are placed into the output directory when you run the INSTALL target.

Hit Configure to start the configuration and select Visual Studio 9 2008 and keep native compilers and click Finish.

The configuration should complete without any further questions and allow you to click Generate.

Now close cmake-gui and continue on the command prompt by starting vcexpress. Use File / Open / Project/Solutions and open the qgis-x.y.z.sln File in your project directory.

Change Solution Configuration from Debug to RelWithDebInfo (Release with Debug Info) or Release before you build QGIS using the ALL_BUILD target (otherwise you need debug libraries that are not included).

After the build completed you should install QGIS using the INSTALL target.

Install QGIS by building the INSTALL project. By default this will install to c:\Program Files\qgis<version> (this can be changed by changing the CMAKE_INSTALL_PREFIX variable in cmake-gui).

You will also either need to add all the dependency DLLs to the QGIS install directory or add their respective directories to your PATH.

4.1.4. Packaging

To create a standalone installer there is a perl script named 'creatensis.pl' in 'qgis/ms-windows/osgeo4w'. It downloads all required packages from OSGeo4W and repackages them into an installer using NSIS.

The script can be run on both Windows and Linux.

On Debian/Ubuntu you can just install the 'nsis' package.

NSIS for Windows can be downloaded at:

http://nsis.sourceforge.net

And Perl for Windows (including other requirements like 'wget', 'unzip', 'tar' and 'bzip2') is available at:

http://cygwin.com

4.1.5. Packaging your own build of QGIS

Assuming you have completed the above packaging step, if you want to include your own hand built QGIS executables, you need to copy them in from your windows installation into the ms-windows file tree created by the creatensis script.

cd ms-windows/
rm -rf osgeo4w/unpacked/apps/qgis/*
cp -r /tmp/qgis1.7.0/* osgeo4w/unpacked/apps/qgis/

Now create a package.

./quickpackage.sh

After this you should now have a nsis installer containing your own build of QGIS and all dependencies needed to run it on a windows machine.

4.1.6. Osgeo4w packaging

The actual packaging process is currently not documented, for now please take a look at:

ms-windows/osgeo4w/package.cmd

4.2.1. MSYS

MSYS provides a unix style build environment under windows. We have created a zip archive that contains just about all dependencies.

Get this:

http://download.osgeo.org/qgis/win32/msys.zip

and unpack to c:\msys

If you wish to prepare your msys environment yourself rather than using our pre-made one, detailed instructions are provided elsewhere in this document.

4.2.2. Qt

Download Qt opensource precompiled edition exe and install (including the download and install of mingw) from here:

http://qt.nokia.com/downloads/

When the installer will ask for MinGW, you don't need to download and install it, just point the installer to c:\msys\mingw

When Qt installation is complete:

Edit C:\Qt\5.9.1\bin\qtvars.bat and add the following lines:

set PATH=%PATH%;C:\msys\local\bin;c:\msys\local\lib 
set PATH=%PATH%;"C:\Program Files\Subversion\bin" 

I suggest you also add C:\Qt\5.9.1\bin\ to your Environment Variables Path in the windows system preferences.

If you plan to do some debugging, you'll need to compile debug version of Qt: C:\Qt\5.9.1\bin\qtvars.bat compile_debug

Note: there is a problem when compiling debug version of Qt 4.7, the script ends with this message "mingw32-make: *** No rule to make target `debug'. Stop.". To compile the debug version you have to go out of src directory and execute the following command:

c:\Qt\5.9.1 make 

4.2.3. Flex and Bison

Get Flex http://sourceforge.net/project/showfiles.php?group_id=23617&package_id=16424 (the zip bin) and extract it into c:\msys\mingw\bin

4.2.4. Python

Follow this section in case you would like to use Python bindings for QGIS. To be able to compile bindings, you need to compile SIP and PyQt5 from sources as their installer doesn't include some development files which are necessary.

Note that even if you compile without the Python bindings, Python3 is still a necessary dependency for building QGIS.

c:\Qt\5.9.1\bin\qtvars.bat 
python configure.py -p win32-g++ 
make 
make install 

c:\Qt\5.9.1\bin\qtvars.bat 
python configure.py 
make 
make install 

4.2.5. git

In order to check out QGIS sources from the repository, you need a git client. This installer should work fine:

https://git-scm.com/download/win

4.2.6. CMake

CMake is build system used by QGIS. Download it from here:

https://cmake.org/files/v3.9/cmake-3.9.3-win64-x64.msi

4.2.7. QGIS

Start a cmd.exe window ( Start -> Run -> cmd.exe ) Create development directory and move into it

md c:\dev\cpp 
cd c:\dev\cpp 

Check out sources from GIT:

git clone git://github.com/qgis/QGIS.git

4.2.8. Compiling

As a background read the generic building with CMake notes at the end of this document.

Start a cmd.exe window ( Start -> Run -> cmd.exe ) if you don't have one already. Add paths to compiler and our MSYS environment:

c:\Qt\5.9.1\bin\qtvars.bat 

For ease of use add c:\Qt\5.9.1\bin\ to your system path in system properties so you can just type qtvars.bat when you open the cmd console. Create build directory and set it as current directory:

cd c:\dev\cpp\qgis 
md build 
cd build 

4.2.9. Configuration

cmakesetup ..  

Note: You must include the '..' above.

Click 'Configure' button. When asked, you should choose 'MinGW Makefiles' as generator.

There's a problem with MinGW Makefiles on Win2K. If you're compiling on this platform, use 'MSYS Makefiles' generator instead.

All dependencies should be picked up automatically, if you have set up the Paths correctly. The only thing you need to change is the installation destination (CMAKE_INSTALL_PREFIX) and/or set 'Debug'.

For compatibility with NSIS packaging scripts I recommend to leave the install prefix to its default c:\program files\

When configuration is done, click 'OK' to exit the setup utility.

4.2.10. Compilation and installation

 make make install 

4.2.11. Run qgis.exe from the directory where it's installed (CMAKE_INSTALL_PREFIX)

Make sure to copy all .dll:s needed to the same directory as the qgis.exe binary is installed to, if not already done so, otherwise QGIS will complain about missing libraries when started.

A possibility is to run qgis.exe when your path contains c:\msys\local\bin and c:\msys\local\lib directories, so the DLLs will be used from that place.

4.2.12. Create the installation package: (optional)

Download and install NSIS from (http://nsis.sourceforge.net/Main_Page)

Now using windows explorer, enter the win_build directory in your QGIS source tree. Read the READMEfile there and follow the instructions. Next right click on qgis.nsi and choose the option 'Compile NSIS Script'.

4.3.1. Initial setup

4.3.2. Installing dependencies

export PATH="/usr/local/bin:/usr/local/lib:$PATH"
./configure --prefix=/usr/local --bindir=/usr/local --with-includes=/usr/local/include --with-libs=/usr/local/lib --with-cxx --without-jpeg \
--without-tiff --with-postgres=yes --with-postgres-includes=/local/pgsql/include --with-pgsql-libs=/local/pgsql/lib --with-opengl=windows --with-fftw \
--with-freetype --with-freetype-includes=/mingw/include/freetype2 --without-x --without-tcltk --enable-x11=no --enable-shared=yes \
--with-proj-share=/usr/local/share/proj
make
make install

#ifdef _WIN32

#if defined(_WIN32) && defined(_MSC_VER)

./configure --prefix=/usr/local
make
make install

./configure
make
make install

./configure
make
make install

4.3.3. Cleanup

We're done with preparation of MSYS environment. Now you can delete all stuff in c:\msys\local\src - it takes quite a lot of space and it's not necessary at all.

4.4.1. Building with Docker

This is the simplest way, but you need to have Docker installed on your system.

You can use a Docker image to cross build QGIS by calling the script ms-windows/mxe/build.sh from the root directory of QGIS repository.

=== Building without Docker ====

This requires to install mxe toolchain on your system and build all dependencies by yourself.

4.4.2. Testing QGIS

Copy and unzip on the Windows machine package produced by the build and launch the qgis binary: no installation is required.

5.3.1. Optional setup: ccache

Xcode 4.4+ note: You will probably not need to install ccache if you are using the clang frontend to LLVM compiler, a setup that already provides fairly quick compile times.

Setup ccache to significantly speed up compile times after initial build. (Switching git branches will again cause longer initial build times unless separate build directories are used for each branch.)

Get the latest source release from here:

http://ccache.samba.org/

Double-click the source tarball to unpack, then, in Terminal.app, cd to the source folder and:

./configure
make
sudo make install

After install, symbolically link compilers to /usr/local/bin/ccache. (Note: this differs from instructions at http://ccache.samba.org/manual.html Changing the /usr/bin:/usr/local/bin order in PATH is not recommended on OS X.

sudo mkdir /usr/local/bin/compilers && cd /usr/local/bin/compilers
sudo ln -s ../ccache gcc
sudo ln -s ../ccache g++
sudo ln -s ../ccache cc
sudo ln -s ../ccache c++

Add the following to the end of your ~/.bash_profile (and optionally ~/.bashrc) to allow your login shell to discover the symbolically linked compilers before /usr/bin compilers and to easily toggle using ccache off, by commenting out the line and starting a new login session in Terminal.

export PATH=/usr/local/bin/compilers:$PATH

If you have trouble building some of the dependencies listed below (e.g. OSG & osgEarth), try bypassing ccache.

5.4.1. Additional dependencies: General compatibility note

There are some additional dependencies that, at the time of writing, are not provided as frameworks or installers so we will need to build these from source. If you are wanting to build QGIS as a 64-bit application, you will need to provide the appropriate build commands to produce 64-bit support in dependencies. Likewise, for 32-bit support on Snow Leopard, you will need to override the default system architecture, which is 64-bit, according to instructions for individual dependency packages.

Stable release versions are preferred. Beta and other development versions may have problems and you are on your own with those.

5.4.2. Additional dependencies: Expat

Snow Leopard+ note: Snow Leopard includes a usable expat, so this step is not necessary on Snow Leopard or above.

Get the expat sources:

http://sourceforge.net/project/showfiles.php?group_id=10127

Double-click the source tarball to unpack, then, in Terminal.app, cd to the source folder and:

./configure
make
sudo make install

5.4.3. Additional dependencies: Spatialindex

Get the libspatialindex sources:

http://download.osgeo.org/libspatialindex/

Double-click the source tarball to unpack, then, in Terminal.app, cd to the source folder and:

./configure --disable-dependency-tracking CFLAGS=-Os
make
sudo make install

5.4.4. Additional dependencies: Python

Leopard+ note: Starting with Leopard a usable Python is included in the system. This is Python 2.5, 2.6 and 2.7, respectively for Leo, Snow and Lion+. So there is no need to install Python on Leopard and newer. You can still install Python from python.org if preferred.

If installing from python.org, make sure you install the latest Python 2.x from

http://www.python.org/download/

Python 3 is a major change, and may have compatibility issues, so try it at your own risk.

5.4.5. Additional dependencies: SIP

Mt Lion note: SIP 4.15.7 appears to not work on Mt Lion. Install either a prior version to 4.14.6 or a later version 4.16.3+

Retrieve the python bindings toolkit SIP from

http://www.riverbankcomputing.com/software/sip/download

Double-click the source tarball to unpack it, then, in Terminal.app, cd to the source folder. Then for your chosen Python:

python.org Python

python configure.py
make
sudo make install

Leopard system Python

SIP wants to install in the system path -- this is not a good idea. More configuration is needed to install outside the system path:

python configure.py -n -d /Library/Python/2.5/site-packages -b /usr/local/bin \
-e /usr/local/include -v /usr/local/share/sip -s MacOSX10.5.sdk

Snow Leopard system Python

Similar to Leopard, you should install outside the system Python path. Also, you need to specify the architecture you want and make sure to run the versioned python binary (this one responds to the 'arch' command, 'python' does not). Substitute '2.7' for python version and 10.7 for SDK version below for Lion.

If you are using 32-bit Qt (Qt Carbon):

python2.6 configure.py -n -d /Library/Python/2.6/site-packages -b /usr/local/bin \
-e /usr/local/include -v /usr/local/share/sip --arch=i386 -s MacOSX10.6.sdk

For 64-bit Qt (Qt Cocoa), use this configure line:

python2.6 configure.py -n -d /Library/Python/2.6/site-packages -b /usr/local/bin \
-e /usr/local/include -v /usr/local/share/sip --arch=x86_64 -s MacOSX10.6.sdk

Lion+ system Python

Similar to Snow Leopard, you should install outside the system Python path. The SDK option should match the system you are compiling on:

for Lion:

python2.7 configure.py -d /Library/Python/2.7/site-packages -b /usr/local/bin \
-e /usr/local/include -v /usr/local/share/sip --arch=x86_64 -s MacOSX10.7.sdk

for Mt. Lion:

python2.7 configure.py -d /Library/Python/2.7/site-packages -b /usr/local/bin \
-e /usr/local/include -v /usr/local/share/sip --arch=x86_64 -s MacOSX10.8.sdk

for Mavericks:

python2.7 configure.py -d /Library/Python/2.7/site-packages -b /usr/local/bin \
-e /usr/local/include -v /usr/local/share/sip --arch=x86_64 -s MacOSX10.9.sdk

continue...

Then continue with compilation and installation:

make
sudo make install

5.4.6. Additional dependencies: QScintilla2

Retrieve the Qt version of the Scintilla-based text editor widget from

http://www.riverbankcomputing.co.uk/software/qscintilla/download

Double-click the tarball to unpack it. Then, cd to the QScintilla2.x.x source folder in a Terminal.

QScintilla2 wants to install in the system path -- with libraries going into /Library/Frameworks and headers into /usr/include/Qsci -- this is not a good idea, and it also basically breaks the QtDesigner plugin. More configuration is needed to install outside the system path, in /usr/local/:

cd Qt4Qt5

Edit QScintilla-gpl-2.x.x/Qt4Qt5/qscintilla.pro in the following manner:

current line --> new line

target.path = $$[QT_INSTALL_LIBS]  -->  target.path = /usr/local/lib
header.path = $$[QT_INSTALL_HEADERS]  -->  header.path = /usr/local/include

Save the qscintilla.pro file and build the QScintilla2 C++ library:

qmake -spec macx-g++ qscintilla.pro
make -j [#cpus]
sudo make install

adjust the install_name_tool command for the version installed of QScintilla installed:

sudo install_name_tool -id /usr/local/lib/libqscintilla2.11.dylib \
  /usr/local/lib/libqscintilla2.11.dylib

This installs QScintilla2's dylib in /usr/local/lib/ and the header files in /usr/local/include/Qsci/, both of which should be automatically found when building QGIS.

cd <QScintilla2 source directory>
cd designer-Qt4Qt5
qmake -spec macx-g++ designer.pro
make
sudo make install

5.4.7. Additional dependencies: PyQt

Retrieve the python bindings toolkit for Qt from

http://www.riverbankcomputing.com/software/pyqt/download

Double-click the source tarball to unpack it, then, in Terminal.app, cd to the source folder. Then for your chosen Python:

python.org Python

python configure.py -n /usr/local/Qt4.8/qsci
yes

Leopard system Python

PyQt wants to install in the system path -- this is not a good idea. More configuration is needed to install outside the system path:

python configure.py -d /Library/Python/2.5/site-packages -b /usr/local/bin -n /usr/local/Qt4.8/qsci -v /usr/local/share/sip/PyQt4

Snow Leopard system Python

Similar to Leopard, you should install outside the system Python path. Also, you need to specify the architecture you want (requires at least PyQt 4.6), and make sure to run the versioned python binary (this one responds to the 'arch' command, which is important for pyuic4, 'python' does not). Substitute '2.7' for python version and 10.7 for SDK version below for Lion.

If you are using 32-bit Qt (Qt Carbon):

python2.6 configure.py -d /Library/Python/2.6/site-packages -b /usr/local/bin \
-n /usr/local/Qt4.8/qsci -v /usr/local/share/sip/PyQt4 --use-arch i386

For 64-bit Qt (Qt Cocoa), use this configure line:

python2.6 configure.py -d /Library/Python/2.6/site-packages -b /usr/local/bin \
-n /usr/local/Qt4.8/qsci -v /usr/local/share/sip/PyQt4 --use-arch x86_64

Lion, Mt. Lion, and Mavericks system Python

Similar to Snow Leopard, you should install outside the system Python path. But you don't need the use-arch option:

python2.7 configure.py -d /Library/Python/2.7/site-packages -b /usr/local/bin -n /usr/local/Qt4.8/qsci -v /usr/local/share/sip/PyQt4

continue...

make -j [#cpus]
sudo make install

If there is a problem with undefined symbols in QtOpenGL on Leopard, edit QtOpenGL/makefile and add -undefined dynamic_lookup to LFLAGS. Then make again.

5.4.8. Additional dependencies: QScintilla2 Python Module

This will create the Qsci.so module in /Library/Python/2.x/site-packages/PyQt4. Like PyQt, it needs help to not install in system locations.

Snow Leopard: substitute '2.6' for Python version

cd <QScintilla2 source dir>
cd Python
python2.7 configure.py -o /usr/local/lib -n /usr/local/include \
-d /Library/Python/2.7/site-packages/PyQt4 -v /usr/local/share/sip/PyQt4 \
--sip-incdir=/usr/local/include --pyqt-sipdir=/usr/local/share/sip/PyQt4
cat >>Qsci.pro <<EOF
QMAKE_LFLAGS_PLUGIN -= -dynamiclib
QMAKE_LFLAGS_PLUGIN += -bundle
EOF
qmake -spec macx-g++ Qsci.pro
make -j [#cpus]
sudo make install

The -o and -n options should match the QScintilla2 C++ dylib install options.

5.4.9. Additional dependencies: Qwt

The GPS tracking feature uses Qwt.

NOTE: PyQwt is not compatible with PyQt 4.9, so we will skip that.

Download the latest Qwt 6.0 source (6.1 does not work with the QwtPolar in QGIS) from:

http://sourceforge.net/projects/qwt

Double-click the tarball to unpack it. Now, cd to the qwt source folder in a Terminal.

Type these commands to build and install 6.0.x (assumes v6.0.2, adjust commands for other version as needed):

cat >> qwtconfig.pri <<EOF
QWT_CONFIG -= QwtFramework
EOF
qmake -spec macx-g++
make -j [#cpus]
sudo make install

sudo install_name_tool -id /usr/local/qwt-6.0.2/lib/libqwt.6.dylib \
  /usr/local/qwt-6.0.2/lib/libqwt.6.dylib

The Qwt shared library is now installed in /usr/local/qwt-6.0.x (x is the point version). Remember this for QGIS configuration.

5.4.10. Additional dependencies: Bison

The version of bison available by default on Mac OS X is too old so you need to get a more recent one on your system. Download at least version 2.4 from:

ftp.gnu.org/gnu/bison/

Now build and install it to a prefix of /usr/local. Double-click the source tarball to unpack it, then cd to the source folder and:

./configure --disable-dependency-tracking CFLAGS=-Os
make
sudo make install

5.4.11. Additional dependencies: gpsbabel

For integrated GPS Tools functions, a gpsbabel executable is required. You can find this at:

http://www.gpsbabel.org/

Download the GPSBabel OS X package, and copy GPSBabelFE.app from the disk image to /Applications.

5.4.12. Optional dependencies: libfcgi

If you want to use the QGIS Mapserver, you need libfcgi. This is included on systems up through Snow Leopard, but was dropped at Lion. So, on Lion you need to get the source from:

http://www.fastcgi.com/dist/

Grab the latest fcgi SNAP package there. Double-click the source tarball to unpack it, then cd to the source folder and:

./configure --disable-dependency-tracking CFLAGS=-Os
make
sudo make install

5.4.13. Optional dependencies: OSG & osgEarth

If you want the Globe plugin in QGIS (default OFF), OSG and osgEarth are needed.

First, OpenSceneGraph. The main site is very out of date, just go to github:

http://github.com/openscenegraph/osg/tags

Download the latest 3.1 version (you can select a tarball when you hover over the entry). Double-click the source tarball to unpack it. (There is a version numbering oddity in the source, but since we'll be bundling OSG as it's meant to be, it really doesn't matter).

Installation is a bit out of touch with OS X standards, so we'll stage it to a temporary location first. You could stage it to the folder that the OSG source folder is in, or a common staging area like /Users/Shared/unix/osg. Pick a folder not hidden and that doesn't need admin permissions to write to for simplicity.

If you are building on Leopard, its configure forces a old ppc/i386 32bit build. If you want 64bit you need to fix CMakeLists.txt - in a text editor, find the if-block that starts with:

ELSEIF(${OSG_OSX_SDK_NAME} STREQUAL "macosx10.6" OR ${OSG_OSX_SDK_NAME} STREQUAL "macosx10.5")

In that section before the next ELSEIF, change:

ppc;i386

to:

i386;x86_64

and change:

mmacosx-version-min=10.5

to:

mmacosx-version-min=10.6

In a new Terminal cd to the source folder and:

mkdir build
cd build
cmake -D CMAKE_INSTALL_PREFIX=/path/to/some/staging/folder \
-D OSG_COMPILE_FRAMEWORKS=ON \
-D OSG_PLUGIN_SEARCH_INSTALL_DIR_FOR_PLUGINS=OFF \
-D JASPER_LIBRARY=/Library/Frameworks/UnixImageIO.framework \
-D JASPER_INCLUDE_DIR=/Library/Frameworks/UnixImageIO.framework/Headers \
-D TIFF_LIBRARY=/Library/Frameworks/UnixImageIO.framework \
-D TIFF_INCLUDE_DIR=/Library/Frameworks/UnixImageIO.framework/Headers \
..
make
make install
sudo mkdir -p "/Library/Application Support/OpenSceneGraph/PlugIns"

Open the staging folder you chose for the CMAKE_INSTALL_PREFIX option above.

Now move all .frameworks from the lib/ folder in the staging area to /Library/Frameworks. Move the files in the osgPlugins folder in the lib/ folder to /Library/Application Support/OpenSceneGraph/PlugIns. The bin/ executables can be left where they are.

Next up is libzip. Get the latest tarball at:

http://nih.at/libzip/

Double-click the source tarball to unpack it. In a new Terminal cd to the source folder and:

./configure --disable-dependency-tracking --disable-shared CFLAGS=-Os
make
sudo make install

Then it's time for osgEarth. Downloads are also on github:

http://github.com/gwaldron/osgearth/tags

Download a tarball for the latest stable release (sorting can be confusing here). Double-click the source tarball to unpack it.

Note: for now stick with version 2.3. There are compile errors in 2.4 that need attention.

This one also needs an intermediate staging area. Choose a folder similar to OSG.

In a new Terminal cd to the source folder and:

mkdir build
cd build
export PATH="/path/to/osg/staging/folder/bin:$PATH"
cmake -D CMAKE_INSTALL_PREFIX=/path/to/some/staging/folder \
-D CMAKE_BUILD_TYPE=MinSizeRel \
-D OSGEARTH_BUILD_FRAMEWORKS=true \
..
make
make install
sudo mkdir -p "/Library/Application Support/OpenSceneGraph/Headers"

Open the staging folder you chose for the CMAKE_INSTALL_PREFIX option above. Also open the OSG staging path /bin folder from the OSG build.

Move all the .frameworks from the lib/ folder to /Library/Frameworks. Move the files in the osgPlugins folder in the lib/ folder to /Library/Application Support/OpenSceneGraph/PlugIns. Move the osgEarthDrivers folder in the include/ folder to /Library/Application Support/OpenSceneGraph/Headers. (you may need to create this folder) And as for OSG, you can leave the bin/ executables where they are.