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Re: [RFA] gdb is broken: missing signal.h checking
> Date: Fri, 30 Mar 2007 08:12:26 -0400
> From: Daniel Jacobowitz <drow@false.org>
>
> On Fri, Mar 30, 2007 at 03:01:01PM +0300, Eli Zaretskii wrote:
> > > Date: Thu, 29 Mar 2007 13:48:08 -0400
> > > From: Daniel Jacobowitz <drow@false.org>
> > > Cc: Denis PILAT <denis.pilat@st.com>, gdb-patches <gdb-patches@sourceware.org>
> > >
> > > GDB definitely does not support systems without <signal.h>, but
> > > gdbserver now tries to.
Aha, missed that bit of detail I guess.
> > Then perhaps we should add this information to gdb/README: it now
> > explicitly says that an ISO C compiler is required, without
> > qualifications.
>
> I believe some projects (binutils and gcc maybe?) draw a distinction
> between "an ISO C compiler" and "an ISO C standard library" and
> require the former but not the latter.
The distinction is "Freestanding" versus "Hosted" I believe.
Obviously GDB requires the latterm but I can see people wanting to
support the former for gdbserver.
> I assume we require an ISO C runtime for the rest of GDB. If that's
> true, then how about the attached patch?
Effectively we do. Or at least I think we should. We made some
exceptions in the past for specific targets that had an almost ISO C
compatible runtime (SunOS, Ultrix) but we no longer support those.
This diff looks fine to me.
> 2007-03-30 Daniel Jacobowitz <dan@codesourcery.com>
>
> * README: Mention ISO C library requirement.
>
> Index: README
> ===================================================================
> RCS file: /cvs/src/src/gdb/README,v
> retrieving revision 1.38
> diff -u -p -r1.38 README
> --- README 21 Nov 2006 05:12:44 -0000 1.38
> +++ README 30 Mar 2007 12:11:32 -0000
> @@ -87,7 +87,9 @@ Bugs' section below; there are a few kno
> GDB requires an ISO C (ANSI C) compiler. If you do not have an ISO
> C compiler for your system, you may be able to download and install
> the GNU CC compiler. It is available via anonymous FTP from the
> -directory `ftp://ftp.gnu.org/pub/gnu/gcc'.
> +directory `ftp://ftp.gnu.org/pub/gnu/gcc'. GDB also requires an ISO
> +C standard library. The GDB remote server, gdbserver, builds with some
> +non-ISO standard libraries - e.g. for Windows CE.
>
> GDB uses Expat, an XML parsing library, to implement some target-specific
> features. Expat will be linked in if it is available at build time, or
>