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.
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?43569>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
_______________________________________________
bug-groff mailing list
[email protected]
https://lists.gnu.org/mailman/listinfo/bug-groff
