Set USE_CTRULIB_2=1 to build with libctru 2.0. When unset, this code
is compatible with the older toolchain.
Some 2.0 changes addressed rare problems in earlier versions:
- Save / restore stack pointer for init / exit
Otherwise, it could be outside of the range we deallocate.
- Run aptMainLoop in the audio driver to react correctly to sleep events
Other changes for 2.0:
- Remove ninjhax1 -- requires outdated APIs that have been removed
- Switch from __sync_arbiter to syncArbitrateAddress
- Use implicit gxCmdBuf
- Use gpuPresentBuffer for double buffering
NOTE: I do not have the 3ds version of devkitARM installed so I could
not test it if moving the assets to pkg/ctr broke compiling but I did
change the assets paths in Makefile.ctr and Makefile.ctr.salimander so
it should compile.