Re: Using and detecting environment variables as flags

[John Ling]

I think I've figured out the way to do it:

In my Makefile.am I put in a line like 'export CONFIGURE-TIME_LIBS=$(LIBS)'

Then in my Makefile.loader I put in my LIBS definition:

LIBS = $(CONFIGURE-TIME_LIBS) ...


Regards,
John

Bruce Korb wrote:

> John Ling wrote:
>  
>
> > Hello, I want to be able to read/check the value of an environment
> > variable in my Makefile.am.  This would be a variable that I set as part
> > of the an [action-if-found] in the AC_SEARCH_LIBS method, that I set in
> > configure.ac.
> >
> > How do I reference such a variable?
> >
> > In addition, depending on the value of this variable, I then want to
> > pass a signal from my Makefile.am to yet another Makefile which is
> > called from Makefile.am.  This signal is to tell the second Makefile to
> > add an -lz in its LIBS definition.
> >
> > How do I do this?  In what way can I send such a flag/signal?
> >    
>
> What is the real problem you are trying to solve?  Normally, autoconf
> results get stored into substitution strings that wind up as
> Makefile macros and set appropriately in the derived Makefile.
>
>
>