Re: [PATCH 1/2] Untangle stddef.h a little

[coypu@sdf.org]

hi gcc-patches,

as part of pinging, i'll explain the story of this patch.

I want to make sure all netbsd archs work with upstream gcc.
in this case, netbsd/arm's EABI support.
I try to break up my changes into digestible chunks that are rational,
which is why this change came first.

building netbsd/arm gcc-trunk, I had a build error in libstdc++, because
this stddef.h relies on include guards:

#if defined(_ANSI_H_) || defined(_MACHINE_ANSI_H_) || defined(_X86_64_ANSI_H_)  || defined(_I386_ANSI_H_)

In theory I could have just added:
 || _ARM_ANSI_H_

this felt gross, so I tried a better solution.
the file even comes with comments like:
  /* Why is this file so hard to maintain properly?
so I try my best to help.

Please let me upstream local changes. there are a lot of them. and I
feel unable to get them across.
I have so many changes that it feels inappropriate to ask for help with
hard problems like internal compiler errors because upstream GCC hit a
different problem. I'm not familiar with stuff so this is hard :-(