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[bug #43569] Fix for compile warnings with gcc 4.6.3
From: |
anonymous |
Subject: |
[bug #43569] Fix for compile warnings with gcc 4.6.3 |
Date: |
Tue, 11 Nov 2014 14:36:00 +0000 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:33.0) Gecko/20100101 Firefox/33.0 |
Follow-up Comment #6, bug #43569 (project groff):
gcc(1) and clang(1) learned #pragma and i have found it valuable to exclude
normal users from useless messages by using them.
E.g. the following is from my MUA.
/* Suppress some technical warnings via #pragma's unless developing.
* XXX Wild guesses: clang(1) 1.7 and (OpenBSD) gcc(1) 4.2.1 don't work */
#if !defined HAVE_DEBUG && !defined HAVE_DEVEL
# if PREREQ_CLANG(3, 4)
# pragma clang diagnostic ignored "-Wunused-result"
# pragma clang diagnostic ignored "-Wformat"
# elif PREREQ_GCC(4, 7)
# pragma GCC diagnostic ignored "-Wunused-result"
# pragma GCC diagnostic ignored "-Wformat"
# endif
#endif
the precondition of that is
#ifdef __clang__
# define CC_CLANG 1
# define PREREQ_CLANG(X,Y)
(__clang_major__ + 0 > (X) ||
(__clang_major__ + 0 == (X) && __clang_minor__ + 0 >= (Y)))
# define __EXTEN __extension__
#elif defined __GNUC__
# define CC_GCC 1
# define PREREQ_GCC(X,Y)
(__GNUC__ + 0 > (X) || (__GNUC__ + 0 == (X) && __GNUC_MINOR__ + 0 >= (Y)))
# define __EXTEN __extension__
#endif
#ifndef CC_CLANG
# define CC_CLANG 0
# define PREREQ_CLANG(X,Y) 0
#endif
#ifndef CC_GCC
# define CC_GCC 0
# define PREREQ_GCC(X,Y) 0
#endif
#ifndef __EXTEN
# define __EXTEN
#endif
Something similar would surely make sense for groff.
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- [bug #43569] Fix for compile warnings with gcc 4.6.3, anonymous, 2014/11/10
- Re: [bug #43569] Fix for compile warnings with gcc 4.6.3, Ulrich Lauther, 2014/11/10
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Ingo Schwarze, 2014/11/10
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Ingo Schwarze, 2014/11/10
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Werner LEMBERG, 2014/11/11
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Ulrich Lauther, 2014/11/11
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Ingo Schwarze, 2014/11/11
- [bug #43569] Fix for compile warnings with gcc 4.6.3,
anonymous <=
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Ulrich Lauther, 2014/11/12
- [bug #43569] Fix for compile warnings with gcc 4.6.3, Ingo Schwarze, 2014/11/14