RFC: Get rid of lib/Makefile.am

[Akim Demaille]

Getting rid of this one is much more trouble than the others because  
of gnulib which is clearly not meant to be used non-recursively.  I  
have recently discovered that libltdl could be used non-recursively,  
and that was a blessing.  For gnulib, our bootstrap already goes  
through complications to avoid spending a whole directory for it  
alone: in lib/ we have bison stuff, and gnulib stuff.

I don't think the gnulib people will be willing to make their tools  
more complex to support non-recursive Makefiles, so I wrote a tool to  
convert gnulib.mk into a non-recursive one.  But it's certainly  
fragile, and will probably require maintenance.

So I'm definitely ambivalent on this one.  On the one hand, the job is  
done (see the git branch candadites/lib-local-mk).  Well, some more  
comments and removing a few constants would make it better.  On the  
other hand, it's more maintenance (but if someone is tired of  
maintaining this, it is straightforward to move to using a Makefile.am  
again).

So what do you people think?

0001-Convert-lib-Makefile.am-into-lib-local.mk.patch
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