as passing/escaping variables with special characters is far too painful.

is present. CUDA outputs can be directed into a separate directory, which can
be specified via CUDABUILDDIR

a build directory. Project Makefiles can set a BUILDDIR variable to their
build directory - this will be used in the generated target names

flags to be set by the environment, but always set -std option to fix C/C++
standard. Compiler option precedence is 1. Project, 2. ARCH* flags (which
currently just contain -std), and 3. Environment flags.

values (e.g. HFILES = *.h)

$FSLDIR/include, rather than $FSLDIR/include/$PROJNAME. Needed so armawrap
can install armadillo at $FSLDIR/include/armadillo

tclinstall, etc etc. Clean up rules.mk

and lib files. Ignore CPPFLAGS from the environment.