All memory management now goes through allocation hooks instead of directly to
C runtime malloc/realloc/free...
#undef DEBUG
#undef DEBUG_CHATTER
#undef NDEBUG
#undef PHYSFS_SUPPORTS_ZIP
#undef PHYSFS_SUPPORTS_GRP
#undef PHYSFS_SUPPORTS_MIX
#undef PHYSFS_SUPPORTS_HOG
#undef PHYSFS_SUPPORTS_MVL
#undef PHYSFS_HAVE_READLINE
#undef PHYSFS_HAVE_LLSEEK