Help needed: banishing RTL from the front ends

[Ralf Wildenhues]

* Steven Bosscher wrote on Tue, May 25, 2010 at 04:23:35PM CEST:
> On Tue, May 25, 2010 at 11:13 AM, Andreas Schwab wrote:
> > Target-specific variable values are applied to all dependencies, see
> > (make) Target-specific:
[...]
> That is the problem here. TM_H depends on insn-constants.h, which
> depends on               genconstants:
[...]
> 
> Lots of files validly depend on TM_H (directly, or via target.h).

What's more, the order-only prerequisite

  $(ALL_HOST_OBJS) : | $(generated_files)

may (eventually) bite you, too.  This GNU make semantic does not seem
very intuitive.

> So I guess this plan of mine is not going to work...
> Other ideas?

Well, you could override the overridden variable for the dependencies
yet again.

Cheers,
Ralf