Gcc-generated dependencise. (Was: Re: dump (temacs) fails, core in alloc.c)

[Jan Djärv]

Stefan Monnier skrev:
> > How about detecting if we are using gcc and generate dependencies on the fly
> > while compiling the first time?  I see many packages that does so. Would
> > such a change be OK?
>
> That would be good, yes.  As long as it doesn't break builds on non-gcc
> and non-gmake systems.

I have checked in dependency generation on the fly for src.  Configure checks 
for gcc -MMD -MF and GNU Make and if not explicitly disabled with 
--disable-autodepend, dependencies are then generated when files are compiled.

        Jan D.