LP-30 added short readme describing how to build osgEarth

make/3rdparty/osgearth/README.TXT

@@ -0,0 +1,63 @@
+This document describes how to build osg and osgEarth.
+
+
+Building osgEarth requires:
+* osgEarth (http://osgearth.org/)
+* OpenSceneGraph (http://www.openscenegraph.org/)
+* GDAL (http://www.gdal.org/)
+* zlib, png, etc...
+
+
+Make sure all LibrePilot SDKs are up to date as the osgEarth build relies on them.
+
+
+More details can be found in osgearth.mk.
+
+Linux prerequisites
+----------------------------------
+
+$ sudo apt-get install libzip-dev libpng-dev lipjpeg-dev libtiff5-dev libcurl4-openssl-dev
+$ sudo apt-get install  libgeos++-dev libgdal-dev
+
+
+Alternative (not tested recently but could work):
+
+
+$ sudo apt-get build-dep openscenegraph
+
+
+Tested with:
+
+
+$ curl --version
+curl 7.35.0 (i686-pc-linux-gnu) libcurl/7.35.0 OpenSSL/1.0.1f zlib/1.2.8 libidn/1.28 librtmp/2.3
+
+
+$ gdal-config --version
+1.10.1
+
+OSX prerequisites
+----------------------------------
+
+brew install cmake
+brew install gdal
+
+Windows prerequisites
+----------------------------------
+
+Windows requires many libraries to be build.
+
+See osg_win.sh for more details.
+
+
+Building
+----------------------------------
+
+$ make all_osg
+
+
+This will:
+- clone git repositories in ./3rdparty
+- build osg and osgEarth libraries in ./build/3rdparty
+- install osg in ./build/3rdparty/install
+- create distribution files (tar & md5) in ./build/3rdparty/install