VAX support in 2.95.2

[Chuck McManis <cmcmanis at mcmanis dot com>]

Hello all,

Its quite humbling I've found to step aside from the SPARC or i386 world 
and try to work with gcc :-) Case in point this evening is the VAX. I'm 
running NetBSD 1.4.1 on a VAX and would like to build gcc 2.95.2 and a 
fresh tool chain for it. (this is prepatory to building a full cross 
compilation environment for the PDP-11 (its a longish story)).

The current gcc in NetBSD is egcs-2.91.60, and in the source tree I've 
built it without error, however I thought as an exercise in getting to know 
my way around I'd see if I could bring up 2.95.2. Its broken and I"m trying 
to fix it, but I'm still on the learning curve.

This is what I've got:
	1.) If I let configure guess what I'm building, it guesses 
vax-unknown-nebsd1.4.1.
	    The configure actually seems to work better if I tell it vax-netbsd.

	2.) When building makeinfo.c (doing a make bootstrap) I get an error:

	../../../gcc-2.95.2/texinfo/makeinfo/makeinfo.c: In function `cm_today':
../../../gcc-2.95.2/texinfo/makeinfo/makeinfo.c:3988: warning: Delayed 
evaluation of __builtin_constant_p not supported on this target.
../../../gcc-2.95.2/texinfo/makeinfo/makeinfo.c:3988: warning: Please 
report this as a bug to egcs-bugs@cygnus.com.

	Sounds like the MD files aren't correct, but I can't find any reference to 
builtin_constant_p in any of the files to change it during the build.

	3.) Gcc constantly complains that it doesn't understand "-J" (this shows 
up in the
	    host overrides section of the gcc Makefile because it is in the x-vax 
file in
	    gcc/config/vax why?)

	4.) Is there an "owner" for the VAX ?


	5.) I understand why the NetBSD folks build the tool chain with the bsd 
makefiles
	    but I can't figure out if anyone is keeping the main gcc stuff up to date.

Anyway, its confusing and I'm looking for the place to start whacking. Some 
(like the x-vax file) seem to be no-brainers, but the builtin_constant_p 
stuff is still a mystery.

--Chuck