Re: OT: [avr-gcc-list] How to make to variants with one makefile?

[James Hsu]

I guess this is a bit off-topic, but might as well finish off the thread...
Anton Erasmus wrote:

> echo -DVersion1  t1.hex
> -DVersion1 t1.hex
> echo -DVersion1  t2.hex
> -DVersion1 t2.hex
> echo -DVersion2  t1.hex
> -DVersion2 t1.hex
> echo -DVersion2  t2.hex
> -DVersion2 t2.hex
>
> Does anybody have a suggestion of how to get make to do the above with a
> single make command ?
>
>  
If you are trying to make some sort of "debug" and "release" version 
with a single makefile,
then you might want to use variables like this:

HEXFILES = t1.hex t2.hex

v1: $(HEXFILES)
v1: FLAGS += -DVersion1
v2: $(HEXFILES)
v2: FLAGS += -DVersion2

$(HEXFILES):
        echo $(FLAGS) $@

The other thing you might be looking for is just recursively invoking
make like such:

ugh:
        make v1
        make v2

which can get pretty ugly if you mess up something.

James Hsu