Since switching to C++11 the NaCL build was disabled.
This re-enables the ARM configuration which uses a
more recent version of gcc. This means that that NaCl
code paths will at least be test until we can find a way
to re-enable the X86 build.
The ENABLE_BOX2D/ENABLE_CHIPMUNK defines were previously
hardcoded in the Makefiles. Now you get chipmunk by default
on both platforms and can enble Box2D by setting USE_BOX2D in
your environment.
Also remove erroneous -D__CC_PLATFORM_FILEUTILS_CPP__ and
-D__CC_PLATFORM_IMAGE_CPP__ from linux Makefiles. These should
never be defined globally like this.
Sam Clegg