Is this expected behavior?
$ make --version
GNU Make 3.81
Copyright (C) 2006 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
This program built for i386-pc-linux-gnu
$ cat Makefile
ifeq ($(A),x)
A:=y
$(info A set to $(A))
endif
.PHONY: default
default:
@echo A is $(A)
$ make
A is
$ make A=a
A is a
$ make A=x
A set to x
A is x
I would expect A to be set to "y" whenever its previous value is "x",
but that doesn't happen.
Jason
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