Re: error messages from including files

[Arthur Davis]

My concern was with the fact that -include does not fail if the file 
does not exist.  In my case, the list of inlcuded files was generated by 
make as were the files themselves.  Also, the rule to create the 
included files was a pattern rule.  If any of that failed, the -include 
directive would not complain, that bit of functionality would be absent 
(in my case the specification of prerequisites), and no error would be 
given.

dave russo wrote:

> At 01:56 PM 4/9/2003 -0400, Arthur Davis wrote:
>
> > -include does cause make to suppress printing the message, but it 
> > also indicates that it is ok if the file does not exist which in my 
> > case was not true.
>
>
> Again, I probably don;t understand the problem but ...
>
> Can't your rule for the potentially non-existent include file do 
> *anything* you need it to?
>
>     % cat foo.mak -include bar.mak
>
>     bar.mak:         @echo making $@ ..         @false
>
>     % make -f foo.mak making bar.mak .. make: *** [bar.mak] Error 255
>
> Changing false to true above allows make to complete successively.
>
> > dave russo wrote:
> >
> > > > The ability for this to be suppressed is requested in bug #102.
> > > _> http://savannah.gnu.org/projects/make
> > > _> I don't think there's any way to do it currently.
> > >
> > > I probably don't understand the problem but ...
> > >
> > > I thought that "-include" was supposed to be used to suppress errors. 
> > > make also seems to "do the right thing" if the file does not exist 
> > > and make has a rule to create it; i.e., it creates it and 
> > > recursively restarts.