command
$make ARCH=7777777777777777777777777777777
Makefile content
$(warning $(ARCH))
output
Makefile:1: 7777777777777777777777777777777
make: *** No targets. Stop.
$make ARCH=7777777777777777777777777777777
$(warning $(ARCH))
Makefile:1: 7777777777777777777777777777777
make: *** No targets. Stop.