On Fri, 2020-07-03 at 11:50 +0200, Jan Beulich wrote:
> > For example if you change the above makefile:
> >export FOO
> >$(info FOO: $(origin FOO))
> >all: ; @env | grep FOO
> > then you run:
> >$ unset FOO; make
> >FOO: file
> >FOO=
> >make: 'all' is up to date.
> > you
On 02.07.2020 17:31, Paul Smith wrote:
> On Thu, 2020-07-02 at 17:16 +0200, Jan Beulich wrote:
>>> export wom
>>> introduces the variable to the env and set origin to environment.
>>
>> Not according to my observations.
>
> The difference is whether the variable already exists in the
> environment