From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joe Buck To: nickc@cygnus.com (Nick Clifton) Cc: jbuck@synopsys.com, egcs@cygnus.com Subject: Re: Should warnings be issued for unrecognised pragmas ? Date: Mon, 20 Oct 1997 10:43:00 -0000 Message-id: <199710201743.KAA05155@atrus.synopsys.com> References: <199710201734.KAA15995@elmo.cygnus.com> X-SW-Source: 1997-10/msg00875.html > > From: Joe Buck > > Date: Sat, 18 Oct 97 12:55:55 PDT > > > > Because large numbers of people use -Wall all the time on every build, > > no warning should be added to -Wall that cannot be suppressed without > > making the code worse. Since it's easy to supress compiler-specific > > pragmas belonging to other compilers with #ifdef __Green_Hills__ or > > the like, I don't care in this case whether -Wall objects or not. > > So -Wunrecognized_pragmas could be in -Wall. On the other hand, > > some of the "Effective C++" warnings can't be suppressed without > > making some classes needlessly larger, so they can't be in -Wall. > > > > Can you tell me what these pragmas are, then I can make sure that the > patch will not generate warnings for them. I assume that it is OK for > GCC to ignore these pragmas ? You misunderstood me, I think. I have no problem with warning about all unrecognized pragmas in -Wall . I was just talking about general philosophy (put stuff in -Wall only if the user can always avoid the warning without penalty).