From Jorge Ciges, "This is one of those bugs that you don't find until you try to compile under another pc that doesn't have Cmake 2.8."

CMakeLists.txt

@@ -66,6 +66,9 @@ SET(CMAKE_MODULE_PATH "${OpenSceneGraph_SOURCE_DIR}/CMakeModules;${CMAKE_MODULE_
 ## Option to enable Android build using AndroidNDK
 OPTION(OSG_BUILD_PLATFORM_ANDROID OFF)
 IF(OSG_BUILD_PLATFORM_ANDROID)
+
+    CMAKE_MINIMUM_REQUIRED(VERSION 2.8.0 FATAL_ERROR)
+
     INCLUDE(OsgAndroidMacroUtils)
     SET(ANDROID TRUE)
     SET(ANDROID_PLATFORM 5)