make: "varmod-indirect.mk" line 19: Unknown modifier "${" make: "varmod-indirect.mk" line 52: Unknown modifier "${" make: "varmod-indirect.mk" line 54: warning: FIXME: this expression should have resulted in a parse error rather than returning the unparsed portion of the expression. make: "varmod-indirect.mk" line 143: before make: "varmod-indirect.mk" line 143: after make: "varmod-indirect.mk" line 151: before make: "varmod-indirect.mk" line 151: after make: "varmod-indirect.mk" line 159: before make: "varmod-indirect.mk" line 159: after make: "varmod-indirect.mk" line 164: Unknown modifier "Z" make: "varmod-indirect.mk" line 167: before make: "varmod-indirect.mk" line 167: after Parsing line 176: _:= before ${UNDEF} after Global: _ = # (empty) Var_Parse: ${UNDEF} after (eval-keep-dollar-and-undefined) Global: _ = before ${UNDEF} after Parsing line 179: _:= before ${UNDEF:${:US,a,a,}} after Var_Parse: ${UNDEF:${:US,a,a,}} after (eval-keep-dollar-and-undefined) Indirect modifier "S,a,a," from "${:US,a,a,}" Evaluating modifier ${UNDEF:S...} on value "" (eval-keep-dollar-and-undefined, undefined) Modifier part: "a" Modifier part: "a" ModifyWords: split "" into 1 word Result of ${UNDEF:S,a,a,} is "" (eval-keep-dollar-and-undefined, undefined) Global: _ = before ${UNDEF:S,a,a,} after Parsing line 189: _:= before ${UNDEF:${:U}} after Var_Parse: ${UNDEF:${:U}} after (eval-keep-dollar-and-undefined) Indirect modifier "" from "${:U}" Global: _ = before ${UNDEF:} after Parsing line 195: _:= before ${UNDEF:${:UZ}} after Var_Parse: ${UNDEF:${:UZ}} after (eval-keep-dollar-and-undefined) Indirect modifier "Z" from "${:UZ}" Evaluating modifier ${UNDEF:Z} on value "" (eval-keep-dollar-and-undefined, undefined) make: "varmod-indirect.mk" line 195: Unknown modifier "Z" Result of ${UNDEF:Z} is error (eval-keep-dollar-and-undefined, undefined) Global: _ = before ${UNDEF:Z} after Parsing line 197: .MAKEFLAGS: -d0 ParseDependency(.MAKEFLAGS: -d0) Global: .MAKEFLAGS = -r -k -d 0 -d pv -d Global: .MAKEFLAGS = -r -k -d 0 -d pv -d 0 make: Fatal errors encountered -- cannot continue make: stopped in unit-tests exit status 1