Re: trouble cleaning the right files ..

[John Graham-Cumming]

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sharan basappa wrote:
> Each module make appends its clean target to clean variable as :
> clean     += clean_dir1 .. so eventually clean_all looks like
> clean_all : clean_dir1 clean_dir2
> 
> clean_dir1 (for example) rule is :
> 
> clean_dir1 :
>        \rm $(local_objs)

Here's how I'd handle that:

1. I'd drop the 'clean' variable completely.

2. When I'm defining clean_dir1 I'd add

    clean: clean_dir1

So that whenever the clean target is requested clean_dir1 is run.

3. To handle grabbing of local_objs you can either do a target-specific
variable as Phillip has suggested, or you could grab the state of
local_objs using a := and save it:

    clean_dir1_local_objs := $(local_objs)
    clean_dir1: ; rm $(clean_dir1_local_objs)

4. You can dispense with the clean_dir1 targets completely by using a ::
rule for clean.  Each Makefile could just have the following that grabs
the local_objs variable and adds commands to the clean target.

    clean_dir1_local_objs := $(local_objs)
    clean:: ; rm $(clean_dir1_local_objs)

John.



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