NOTE: The following source files are   NOT used at all currently
----
      They are BLAS/Linpack for complex matrices and vectors:

	zblas.f
	zeroin.f
	zhico.f
	zhifa.f
	zhisl.f
	zsico.f
	zsifa.f
	zsisl.f

Hint:	Adding new functionality here usually needs an entry in each of
	       	Makefile.in
		ROUTINES
		../include/R_ext/Applic.h
	and usually as well in
		NEWS
		../../doc/manual/R-exts.texi