From Rafa Gaitan and Jorge Izquierdo, build support for Android NDK.

"- In order to build against GLES1 we execute:
$ mkdir build_android_gles1
$ cd build_android_gles1
$ cmake .. -DOSG_BUILD_PLATFORM_ANDROID=ON -DDYNAMIC_OPENTHREADS=OFF
-DDYNAMIC_OPENSCENEGRAPH=OFF -DANDROID_NDK=<path_to_android_ndk>/
-DOSG_GLES1_AVAILABLE=ON -DOSG_GL1_AVAILABLE=OFF
-DOSG_GL2_AVAILABLE=OFF -DOSG_GL_DISPLAYLISTS_AVAILABLE=OFF -DJ=2
-DOSG_CPP_EXCEPTIONS_AVAILABLE=OFF
$ make
 If all is correct you will have and static OSG inside:
build_android_gles1/bin/ndk/local/armeabi.

- GLES2 is not tested/proved, but I think it could be possible build
it with the correct cmake flags.
- The flag -DJ=2 is used to pass to the ndk-build the number of
processors to speed up the building.
- make install is not yet supported."

src/CMakeLists.txt

@@ -1,3 +1,7 @@
+IF(ANDROID)
+    SET(MODULE_USER_STATIC_OR_DYNAMIC ${OPENSCENEGRAPH_USER_DEFINED_DYNAMIC_OR_STATIC})
+ENDIF(ANDROID)
+
 #the old construct SUBDIRS( was substituded by ADD_SUBDIRECTORY that is to be preferred according on CMake docs.
 FOREACH( mylibfolder 
         OpenThreads
@@ -26,7 +30,7 @@ FOREACH( mylibfolder
 
 ENDFOREACH()
 
-IF (QT4_FOUND)
+IF (QT4_FOUND AND NOT ANDROID)
     ADD_SUBDIRECTORY(osgQt)
 ENDIF()
 
@@ -34,3 +38,7 @@ IF(MSVC80 OR MSVC90)
   OPTION(OSG_MSVC_GENERATE_PLUGINS_AND_WRAPPERS_MANIFESTS "Generate or not manifests files under VS8 for dynamically loaded dlls" ON)
 ENDIF()
 
+IF(ANDROID)
+    configure_file("${OSG_ANDROID_TEMPLATES}/Android.mk.src.in" "${CMAKE_CURRENT_BINARY_DIR}/Android.mk")
+ENDIF()
+