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Re: gcc/ginclude/math-3300.h
- From: "Joseph S. Myers" <jsm28 at cam dot ac dot uk>
- To: <moshier at moshier dot ne dot mediaone dot net>
- Cc: <gcc at gcc dot gnu dot org>
- Date: Wed, 19 Dec 2001 11:52:07 +0000 (GMT)
- Subject: Re: gcc/ginclude/math-3300.h
On Tue, 18 Dec 2001, Stephen L Moshier wrote:
> math-3300.h has the same use as math-68881.h but the assembly language
> spelling is peculiar to the old Motorola delta boxes. You could treat
> it the same way as math-68881.h is treated in config.gcc.
>
> As long as gcc is theoretically supporting m68k-motorola-sysv
> the file ought to be kept. If you don't want it in gincludes
> you might move it to config/m68k.
So, why does m68k-motorola-sysv use math-68881.h? Are there multiple
variants of that target which GCC doesn't distinguish, some of which
should use math-3300.h?
Could someone explain why there are two mechanisms for targets to install
extra headers, setting EXTRA_HEADERS in a t-* fragment or extra_headers in
config.gcc, with the former used to install headers from config/ and the
latter for ginclude/? If this is just historical, would it be appropriate
to move the target headers from ginclude to config? Would it be
appropriate to move the specifications of EXTRA_HEADERS into config.gcc?
--
Joseph S. Myers
jsm28@cam.ac.uk