Re: problems with recursive make target

[John Calcote]

Hi John,

On 6/29/2009 1:44 PM, Ralf Wildenhues wrote:
> Hello John,
>
> * address@hidden wrote on Mon, Jun 29, 2009 at 09:36:09PM CEST:
>    
> > in top/lib/Makefile.am
> > SUBDIRS = pika_comm pika_utilities
> > # provide a separate recursive target for making tests
> > tests : all
> > echo `pwd`;
> > for dir in $(SUBDIRS); do \
> > cd $$dir&&  $(MAKE) $(AM_MAKEFLAGS) $@ || exit 1; \
> > done
> > echo `pwd`;
> > .PHONY : tests
> >      
>
> You don't ever 'cd' back out of the first subdirectory, so you can't
> find the second:
>    
Ralf is correct, of course. In my online catalog of solutions, I'd 
copied and modified this code from an Automake-generated Makefile. But I 
inadvertently left the parentheses off the cd command line, which would 
have invoked the entire line in a sub-shell:

for dir in $(SUBDIRS); do \
  (cd $$dir&&  $(MAKE) $(AM_MAKEFLAGS) $@ || exit 1) \
done


Sorry for the confusion.

John