Global: param = twice
Global: VARNAME = VAR.$${param}
Var_Parse: ${VARNAME} (eval)
Global: VAR.${param} = initial-value
Var_Parse: ${${VARNAME}::=assigned-value} (eval-defined-loud)
Var_Parse: ${VARNAME}::=assigned-value} (eval)
Evaluating modifier ${VAR.${param}::...} on value "initial-value"
Modifier part: "assigned-value"
Global: VAR.${param} = assigned-value
Result of ${VAR.${param}::=assigned-value} is ""
Var_Parse: ${${VARNAME}} != "assigned-value" (eval-defined-loud)
Var_Parse: ${VARNAME}} != "assigned-value" (eval)
Global: .MAKEFLAGS =  -r -k -d v -d
Global: .MAKEFLAGS =  -r -k -d v -d 0
Var_Parse: ${CMD_CMD_VAR::=new-value}  || ${CMD_GLOBAL_VAR::=new-value}  || ${CMD_ENV_VAR::=new-value}  || "${CMD_NEW_VAR::=new-value}" (eval-defined-loud)
Evaluating modifier ${CMD_CMD_VAR::...} on value "cmd-value"
Modifier part: "new-value"
Command: CMD_CMD_VAR = new-value
Global: .MAKEOVERRIDES =  FIRST LAST LAST LAST APPENDED RAN RAN RAN IT1 THEN1 IE2 ELSE2 CMD_CMD_VAR CMD_CMD_VAR
Result of ${CMD_CMD_VAR::=new-value} is ""
Var_Parse: ${CMD_GLOBAL_VAR::=new-value}  || ${CMD_ENV_VAR::=new-value}  || "${CMD_NEW_VAR::=new-value}" (eval-defined-loud)
Evaluating modifier ${CMD_GLOBAL_VAR::...} on value "global-value"
Modifier part: "new-value"
Global: CMD_GLOBAL_VAR = new-value
Result of ${CMD_GLOBAL_VAR::=new-value} is ""
Var_Parse: ${CMD_ENV_VAR::=new-value}  || "${CMD_NEW_VAR::=new-value}" (eval-defined-loud)
Evaluating modifier ${CMD_ENV_VAR::...} on value "env-value"
Modifier part: "new-value"
Global: CMD_ENV_VAR = new-value
Result of ${CMD_ENV_VAR::=new-value} is ""
Var_Parse: ${CMD_NEW_VAR::=new-value}" (eval)
Evaluating modifier ${CMD_NEW_VAR::...} on value "" (eval, undefined)
Modifier part: "new-value"
Global: ignoring delete 'CMD_NEW_VAR' as it is not found
Command: CMD_NEW_VAR = new-value
Global: .MAKEOVERRIDES =  FIRST LAST LAST LAST APPENDED RAN RAN RAN IT1 THEN1 IE2 ELSE2 CMD_CMD_VAR CMD_CMD_VAR CMD_NEW_VAR
Result of ${CMD_NEW_VAR::=new-value} is "" (eval, undefined)
Global: .MAKEFLAGS =  -r -k -d v -d 0 -d v -d
Global: .MAKEFLAGS =  -r -k -d v -d 0 -d v -d 0
make: Invalid attempt to assign "value" to variable "" via modifier "::="
	while evaluating "${::=value}" with value ""
	in command "@echo $@: ${::=value}"
	in target "mod-assign-empty-1"
make: Invalid attempt to assign "overwritten" to variable "" via modifier "::="
	while evaluating "${:Uvalue::=overwritten}" with value "value"
	in command "@echo $@: ${:Uvalue::=overwritten}"
	in target "mod-assign-empty-2"
make: Invalid attempt to assign "appended" to variable "" via modifier "::+="
	while evaluating "${:Uvalue::+=appended}" with value "value"
	in command "@echo $@: ${:Uvalue::+=appended}"
	in target "mod-assign-empty-3"
mod-assign-empty-4: VAR=overwritten
make: Unknown modifier "::x"
	while evaluating variable "ASSIGN" with value ""
	in command "@echo ${ASSIGN::x}"
	in target "mod-assign-parse-1"
sysv:y
make: Unfinished modifier after "value	# missing closing brace", expecting "}"
	while evaluating variable "ASSIGN" with value ""
	in command "@echo ${ASSIGN::=value	# missing closing brace"
	in target "mod-assign-parse-3"
ok=word
make: warning: Command " echo word; (exit 13) " exited with status 13
err=previous
Command: TARGET_CMD_VAR = cmd-value
Global: TARGET_GLOBAL_VAR = global-value
target: TARGET_TARGET_VAR = target-value
target: TARGET_TARGET_VAR = new-value
Global: TARGET_GLOBAL_VAR = new-value
Global: TARGET_ENV_VAR = new-value
target: TARGET_NEW_VAR = new-value
exit status 2