Var_SetExpand: variable name "${:U}" expands to empty string, with value "cmdline-u" - ignored
Var_SetExpand: variable name "" expands to empty string, with value "cmdline-plain" - ignored
Global: .CURDIR = <curdir>
Var_Parse: ${MAKE_OBJDIR_CHECK_WRITABLE} (eval)
Global: .TARGETS = # (empty)
Internal: MAKEFILE = varname-empty.mk
Global: .MAKE.MAKEFILES = varname-empty.mk
Global: .PARSEFILE = varname-empty.mk
Global: delete .INCLUDEDFROMDIR (not found)
Global: delete .INCLUDEDFROMFILE (not found)
Var_SetExpand: variable name "" expands to empty string, with value "default" - ignored
Var_SetExpand: variable name "" expands to empty string, with value "assigned" - ignored
SetVar: variable name is empty - ignored
Var_SetExpand: variable name "" expands to empty string, with value "" - ignored
Var_SetExpand: variable name "" expands to empty string, with value "subst" - ignored
Capturing the output of command "echo 'shell-output'"
Var_SetExpand: variable name "" expands to empty string, with value "shell-output" - ignored
Var_SetExpand: variable name "${:U}" expands to empty string, with value "assigned indirectly" - ignored
Var_AppendExpand: variable name "${:U}" expands to empty string, with value "appended indirectly" - ignored
Global: .MAKEFLAGS =  -r -d v -d
Global: .MAKEFLAGS =  -r -d v -d 0
out: fallback
out: 1 2 3
exit status 0