Date: Thu, 13 Mar 1997 17:49:30 -0700 (MST) From: Nate Williams <nate@mt.sri.com> To: Peter Dufault <dufault@hda.com> Cc: pst@jnx.com (Paul Traina), hans@brandinnovators.com, bugs@freebsd.org Subject: Re: bin/2979: Make gcc shut up about extensions when compiling `-pedantic -ansi' Message-ID: <199703140049.RAA02755@rocky.mt.sri.com> In-Reply-To: <199703132203.RAA07964@hda.hda.com> References: <7yhgifihds.fsf@base.jnx.com> <199703132203.RAA07964@hda.hda.com>
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> > When compiling something which uses statement expressions (e.g > > machine/endian.h to get at ntohl()), gcc complains that braces > > are not allowed by ANSI C. .. > I bumped into this exact problem in the last couple of days and > removed a -Werror because of it and was glad to see this work around. > ntohl on a BSD system can't be considered an extension and is well > enough defined that there is no way that the FreeBSD header should > generate a warning - that is just going to cause lazy/busy people to > do what I did and turn off warnings. ---------------------------- rrevision 1.7 date: 1996/10/21 17:15:05; author: nate; state: Exp; lines: +3 -3 When compiling with '-Wall -pedantic', the byte swapping macros gave the following warning: warning: ANSI C forbids braced-groups within expressions Adding __extension__ before the statement-expression seems to work right. Submitted by: bde (a *long* time ago) ---------------------------- It'll be in all releases past this point (assuming we don't make another 2.1.* release.) Nate
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