1make: "varmod.mk" line 42: To escape a dollar, use \$, not $$, at "$$:L} != """ 2make: "varmod.mk" line 42: Invalid variable name ':', at "$:L} != """ 3make: "varmod.mk" line 47: Dollar followed by nothing 4make: Fatal errors encountered -- cannot continue 5make: stopped in unit-tests 6exit status 1 7