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From: Corinna Vinschen <vinschen@redhat.com>
To: newlib@sourceware.org
Subject: Re: what's up with _COMPILING_NEWLIB
Date: Mon, 8 Nov 2021 11:05:30 +0100	[thread overview]
Message-ID: <YYj2apWUGyataHki@calimero.vinschen.de> (raw)
In-Reply-To: <YYcb752EA71AhfF3@vapier>

On Nov  6 20:21, Mike Frysinger wrote:
> i stumbled across _COMPILING_NEWLIB and it seems to be what i want: a symbol
> that indicates the code currently being compiled is newlib itself so that the
> header can change behavior for that environment specifically.  is that what
> it's meant for ?
> 
> if so, why does it seem to be inconsistently defined ?  newlib/configure.host
> will add it for a few random targets, as does the mips-specific
> newlib/libc/machine/mips/Makefile.am, as do a few specific winsup/cygwin/
> files.  it feels like the patch below is what we should have.
> 
> if that's not what this is for, is there a define that has this meaning ?
> in the glibc & gnulib world, the plain _LIBC define indicates this.

_COMPILING_NEWLIB might be older than that.  In Cygwin we certainly need
it during build.  Your patch looks good to me, did you test it for some
targets?


Thanks,
Corinna


  reply	other threads:[~2021-11-08 10:05 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-07  0:21 Mike Frysinger
2021-11-08 10:05 ` Corinna Vinschen [this message]
2021-11-08 11:46   ` Mike Frysinger
2021-11-08 15:05     ` Corinna Vinschen
2021-11-08 18:14       ` Mike Frysinger
2021-11-09  1:24 ` [PATCH 1/2] define _COMPILING_NEWLIB for all targets when compiling Mike Frysinger
2021-11-09  1:24   ` [PATCH 2/2] ctype: use less short names in public header Mike Frysinger
2021-11-09 11:38     ` Corinna Vinschen
2021-11-10  0:18       ` Mike Frysinger
2021-11-10 10:56         ` Corinna Vinschen
2021-11-30 12:18         ` Jonathan Wakely
2021-11-11  1:37     ` [PATCH v2] " Mike Frysinger
2021-11-11 10:35       ` Corinna Vinschen
2021-11-11 22:28         ` Mike Frysinger
2021-11-12 10:27           ` Corinna Vinschen
2021-11-20 20:08             ` Brian Inglis
2021-11-23 15:09     ` [PATCH 2/2] " Richard Earnshaw
2021-11-24  4:15       ` Mike Frysinger
2021-11-24 10:58         ` Richard Earnshaw
2021-11-24 11:01           ` Richard Earnshaw
2021-11-30 12:01         ` Jonathan Wakely
2021-11-30 15:14           ` Corinna Vinschen
2021-11-30 17:12             ` Jonathan Wakely
2021-11-30 17:15               ` Jonathan Wakely
2021-11-30 17:52                 ` Richard Earnshaw
2021-12-02 10:27                   ` Corinna Vinschen
2021-12-03  9:56                     ` Corinna Vinschen
2021-12-05  9:42                   ` Mike Frysinger

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