makefile missing separator on cygwin
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I can't figure out why I'm getting the error

    library.mak:95: *** missing separator.  Stop.

When I use make on cygwin. The code at that specific spot is

    $(eval $(RULES))
    
    $(EXAMPLES) $(TESTPROGS) $(TOOLS): $(THIS_LIB) $(DEP_LIBS)
    $(TESTPROGS): $(SUBDIR)$(LIBNAME)
    
    examples: $(EXAMPLES)