title: CMakeModules/ModuleInstall.cmake:41 (LIST): list sub-command REMOVE_ITEM requires list to be present
body: <pre><code>Build command failed.
  Error while executing process /Users/ben/Documents/androidsdk/cmake/3.6.4111459/bin/cmake with arguments {-H/Users/ben/Documents/work/OSGGuideApp/app/src/main/cpp -B/Users/ben/Documents/work/OSGGuideApp/app/.externalNativeBuild/cmake/debug/armeabi-v7a -DANDROID_ABI=armeabi-v7a -DANDROID_PLATFORM=android-16 -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=/Users/ben/Documents/work/OSGGuideApp/app/build/intermediates/cmake/debug/obj/armeabi-v7a -DCMAKE_BUILD_TYPE=Debug -DANDROID_NDK=/Users/ben/Documents/androidsdk/ndk-bundle -DCMAKE_CXX_FLAGS=-std=c++11 -DCMAKE_TOOLCHAIN_FILE=/Users/ben/Documents/androidsdk/ndk-bundle/build/cmake/android.toolchain.cmake -DCMAKE_MAKE_PROGRAM=/Users/ben/Documents/androidsdk/cmake/3.6.4111459/bin/ninja -GAndroid Gradle - Ninja}
  -- Check for working C compiler: /Users/ben/Documents/androidsdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang
  -- Check for working C compiler: /Users/ben/Documents/androidsdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang -- works
  -- Detecting C compiler ABI info
  -- Detecting C compiler ABI info - done
  -- Detecting C compile features
  -- Detecting C compile features - done
  -- Check for working CXX compiler: /Users/ben/Documents/androidsdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang++
  -- Check for working CXX compiler: /Users/ben/Documents/androidsdk/ndk-bundle/toolchains/llvm/prebuilt/darwin-x86_64/bin/clang++ -- works
  -- Detecting CXX compiler ABI info
  -- Detecting CXX compiler ABI info - done
  -- Detecting CXX compile features
  -- Detecting CXX compile features - done
  -- Performing Test GL_HEADER_HAS_GLINT64
  -- Performing Test GL_HEADER_HAS_GLINT64 - Success
  -- Performing Test GL_HEADER_HAS_GLUINT64
  -- Performing Test GL_HEADER_HAS_GLUINT64 - Success
  -- Jpeg missing
  -- PNG missing
  -- GIF missing
  -- TIF missing
  -- Curl missing
  -- FREETYPE missing
  -- GDAL missing
  -- Windowing system not supported
  -- Configuring incomplete, errors occurred!
  See also "/Users/ben/Documents/work/OSGGuideApp/app/.externalNativeBuild/cmake/debug/armeabi-v7a/CMakeFiles/CMakeOutput.log".
  
  CMake Error at /Users/ben/Documents/work/OpenSceneGraph/CMakeModules/ModuleInstall.cmake:41 (LIST):
    list sub-command REMOVE_ITEM requires list to be present.
  Call Stack (most recent call first):
    /Users/ben/Documents/work/OpenSceneGraph/CMakeModules/OsgMacroUtils.cmake:255 (INCLUDE)
    /Users/ben/Documents/work/OpenSceneGraph/src/OpenThreads/pthreads/CMakeLists.txt:33 (SETUP_LIBRARY)
  
  
  CMake Error at /Users/ben/Documents/work/OpenSceneGraph/CMakeModules/ModuleInstall.cmake:42 (LIST):
    list sub-command REMOVE_ITEM requires list to be present.
  Call Stack (most recent call first):
    /Users/ben/Documents/work/OpenSceneGraph/CMakeModules/OsgMacroUtils.cmake:255 (INCLUDE)
    /Users/ben/Documents/work/OpenSceneGraph/src/OpenThreads/pthreads/CMakeLists.txt:33 (SETUP_LIBRARY)
  
  
  
  The build system is configured to install libraries to /usr/local/lib
  Your applications may not be able to find your installed libraries unless you:
      set your LD_LIBRARY_PATH (user specific) or
      update your ld.so configuration (system wide)
  </code></pre>