This directory holds header files common to all of this thorn.

fake_cctk.h
	is a fake version of "cctk.h" for non-Cactus standalone test
	compilations, containing typedefs for CCTK_INT, CCTK_REAL, etc

stdc.h
	is a low-level file defining Jonathan Thornburg's "dialect" of C,
	including the "then" pseudo-keyword you'll see all through the
	source code

config.hh
	defines compile-time configuration for this thorn, eg the "fp"
	typedef (= CCTK_REAL), the choice of 2nd vs 4th order finite
	differencing, etc etc