make: "varmod-gmtime.mk" line 61: while evaluating "${:L:gmtime=-1} != """: Invalid time value "-1"
make: "varmod-gmtime.mk" line 61: Malformed conditional (${:L:gmtime=-1} != "")
make: "varmod-gmtime.mk" line 72: while evaluating "${:L:gmtime= 1} != """: Invalid time value " 1"
make: "varmod-gmtime.mk" line 72: Malformed conditional (${:L:gmtime= 1} != "")
make: "varmod-gmtime.mk" line 120: while evaluating "${:L:gmtime=10000000000000000000000000000000} != """: Invalid time value "10000000000000000000000000000000"
make: "varmod-gmtime.mk" line 120: Malformed conditional (${:L:gmtime=10000000000000000000000000000000} != "")
make: "varmod-gmtime.mk" line 133: while evaluating "${:L:gmtime=error} != """: Invalid time value "error"
make: "varmod-gmtime.mk" line 133: Malformed conditional (${:L:gmtime=error} != "")
make: "varmod-gmtime.mk" line 144: while evaluating variable "%Y": Invalid time value "100000S,1970,bad,"
make: "varmod-gmtime.mk" line 144: Malformed conditional (${%Y:L:gmtime=100000S,1970,bad,} != "bad")
make: Fatal errors encountered -- cannot continue
make: stopped in unit-tests
exit status 1