% Build FlightGear w/ OsgEarth support on Arch
% 2014-10-18
% Cem

Using packages:

~~~
$ pacman -Q boost openal freealut plib openscenegraph gdal
boost 1.56.0-2
openal 1.16.0-1
freealut 1.1.0-5
plib 1.8.5-5
openscenegraph 3.2.1-2
gdal 1.11.1-1
~~~

Using the repos from the wiki: http://wiki.flightgear.org/Building_FlightGear_with_osgEarth_Integration

Under /home/cem/FlightGear/FG-GIT/
~~~
$ mkdir install-fg-osgearth
~~~

Under /home/cem/FlightGear/FG-GIT/src/

### Build osgearth

~~~
$ git clone -v -b OsgEarthNext https://github.com/poweroftwo/osgearth.git osgearth
$ mkdir build-osgearth
$ cd build-osgearth
$ cmake -DCMAKE_INSTALL_PREFIX=/home/cem/FlightGear/FG-GIT/install-fg-osgearth ../osgearth
$ make -j2 install
~~~

### Build simgear

~~~
$ git clone -v -b OsgEarthNext git://gitorious.org/fg/simgear-osgearth.git simgear
$ mkdir build-simgear
$ cd build-simgear
$ cmake -DCMAKE_INSTALL_PREFIX=/home/cem/FlightGear/FG-GIT/install-fg-osgearth ../simgear
$ make -j2 install
~~~

### Build flightgear

~~~
$ git clone -v -b OsgEarthNext git://gitorious.org/fg/flightgear-osgearth.git flightgear
$ mkdir build-flightgear
$ cd build-flightgear
$ SIMGEAR_DIR=/home/cem/FlightGear/FG-GIT/install-fg-osgearth cmake -DCMAKE_INSTALL_PREFIX=/home/cem/Flig
htGear/FG-GIT/install-fg-osgearth  ../flightgear
$ make -j2 install
~~~

Correct gdal path:
~~~
$ cd flightgear/src/Viewer
$ $ diff OsgEarthHeightField.cxx OsgEarthHeightField.cxx_ORIGINAL.2014-10-18
57,60c57,60
< #   include <cpl_string.h>
< #   include <gdal_priv.h>
< #   include <cpl_conv.h>
< #   include <ogr_spatialref.h>
---
> #   include <gdal/cpl_string.h>
> #   include <gdal/gdal_priv.h>
> #   include <gdal/cpl_conv.h>
> #   include <gdal/ogr_spatialref.h>
667c667
< #endif
---
> #endif
\ No newline at end of file
~~~

Compile error at 100%:
~~~
Linking CXX executable fgfs
/usr/bin/ld: CMakeFiles/fgfs.dir/__/Viewer/OsgEarthHeightField.cxx.o: undefined reference to symbol '_ZN1
7GDALDriverManager15GetDriverByNameEPKc'
/usr/lib/libgdal.so.1: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
src/Main/CMakeFiles/fgfs.dir/build.make:8831: recipe for target 'src/Main/fgfs' failed
make[2]: *** [src/Main/fgfs] Error 1
CMakeFiles/Makefile2:1555: recipe for target 'src/Main/CMakeFiles/fgfs.dir/all' failed
make[1]: *** [src/Main/CMakeFiles/fgfs.dir/all] Error 2
Makefile:137: recipe for target 'all' failed
make: *** [all] Error 2
~~~
(More errors or warnings above.)