Re: 'How makefiles are remade'

[Jim]

Noel Yap wrote:

> Jim wrote:
>
> > Noel Yap wrote:
> >
> > > This makefile works:
> > >
> > > .PHONY: all
> > >
> > > all: ;
> > >
> > > include ticks
> > >
> > > ticks:
> > >     @touch $(@)
> > How do you know?  Sure the rule is done, it doesn't mean that ticks is 
> > reloaded....
>
>
> Since we have this sort of thing in our makefiles, I'm pretty sure it 
> gets reloaded.  The above can easily be modified to show this.

okay so I extended it some... and this fails.

.PHONY:all
all: junk;
        @echo $(TICKS)

include ticks2
ticks2:
        @echo TICKS=a number >> ticks2

include make2
make2:
        @echo junk: >>make2
        @echo   echo $(TICKS) >>make2

if ticks2 were really reloaded then make2 would not have a blank value 
for $(TICKS)

> Noel