Cygwin Failure on multiple targets

[Joel Sherrill]

We were cycling through hosts/targets before putting new
beta/tools out and ran into a Cygwin failure.  Does anyone 
recognize this?

Makefile:407: *** target pattern contains no `%'.  Stop.

This is from score/cpu/sparc but the i386 did the same thing.

Around line 407, I see:


$(PROJECT_RELEASE)/lib:
	@$(mkinstalldirs) $@
                                      <=== blank line is 407
.PRECIOUS: $(LIB)

$(PROJECT_INCLUDE):
	$(mkinstalldirs) $@

We using David Fiddes's RTEMS Cygwin with gnu make 3.78.1.
The filesystems are mounted in binmode.

Thanks for any hints. :)