Re: (toplevel) introduce host subdir configuration in Makefile

[Andrew Cagney <ac131313@redhat.com>]

> At the moment it appears that 'gcc','zlib','fastjar', and 'libiberty' can
> be configured in any order relative to each other (nice and straightforward).
> If anyone knows of specific configure order dependencies, they should tell
> me.  I'll be spending a while fiddling with gcc and src trying to identify
> any other real configure order dependencies.

Nathanael,

Some heads up.

GDB requires an ISO C compiler and on some systems that involves running 
the compiler with specific flags (-Ae, I think, on HP/UX?).  The problem 
is that GDB can't test/configure this directly.  By time time it has a 
say in the matter, it is too late.  The top level will need to do this 
very early on.

While GDB has a depencency on the SIM directory, it resolves it by 
testing for ${srcdir)/../sim so that should be ok.

While INSIGHT has a dependency on tcl/tk, it appears to resolve it doing 
some pretty agressive hunting.  It looks in both ${srcdir} and `pwd`.

Andrew