Re: Exact paths vs canonical paths

[Angel Tsankov]

On 10/25/2010 01:02 PM, Eli Zaretskii wrote:
> > Date: Mon, 25 Oct 2010 12:18:39 +0300
> > From: Angel Tsankov<address@hidden>
> > Newsgroups: gmane.comp.gnu.make.general
> > CC: address@hidden
> >
> > > > ./a.out: a.o
> > > >         @echo $@  # Prints a.out instead of ./a.out
[...]
> So what is the difference between "a.out" and "./a.out" that makes you
> need the latter?

I need ./a.out in a call to patsubst like this one:

$(PATH_TO_OBJECTS)/%.o: ...
        # Get source file that corresponds to an object file
        $(patsubst $(PATH_TO_OBJECTS)/%.o,$(PATH_TO_SOURCES)/%.c,$@))

The problem occurs when PATH_TO_OBJECTS starts with './', e.g. 
'./objects' Then $@ returns just 'objects' and the call to patsubst fails.


Regards,
Angel Tsankov