Date: Mon, 9 Sep 2002 01:10:46 -0700 From: "David O'Brien" <obrien@FreeBSD.org> To: Garrett Wollman <wollman@lcs.mit.edu> Cc: current@FreeBSD.org, kan@FreeBSD.org Subject: Re: No way to tell when `long long' is or is not supported? Message-ID: <20020909081046.GB26978@dragon.nuxi.com> In-Reply-To: <200209090350.g893oHMs062192@khavrinen.lcs.mit.edu> References: <200209090350.g893oHMs062192@khavrinen.lcs.mit.edu>
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On Sun, Sep 08, 2002 at 11:50:17PM -0400, Garrett Wollman wrote:
> Rather than trying to deduce whether `long long' is supported from
> other macros, I simply modified the compiler driver to tell us.
Looking at GCC on other platforms, "_LONGLONG" seems to be the most
preferred symbol. How does this patch look? We can't get this 100%
correct as there is no way to match "iso9899:1990" and "iso9899:199409"
as ':' is a token already. The only way to do this correctly is to add
it to c-common.c and c-opt.c looking at the value of the various
"flag_iso*" variables.
Index: freebsd-spec.h
===================================================================
RCS file: /home/ncvs/src/contrib/gcc/config/freebsd-spec.h,v
retrieving revision 1.3
diff -u -r1.3 freebsd-spec.h
--- freebsd-spec.h 9 Sep 2002 06:56:29 -0000 1.3
+++ freebsd-spec.h 9 Sep 2002 07:23:58 -0000
@@ -98,6 +105,7 @@
%{munderscores: -D__UNDERSCORES__} \
%{maout: %{!mno-underscores: -D__UNDERSCORES__}} \
%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
+ %{!ansi:%{!std=c89:%{!std=iso9899.1990:%{!std=iso9899.199409:-D_LONGLONG}}}}\
%{posix:-D_POSIX_SOURCE}"
/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add
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