[Bug libstdc++/65806] New: NetBSD's <stdint.h> expects __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS

[Bug libstdc++/65806] New: NetBSD's <stdint.h> expects __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65806

            Bug ID: 65806
           Summary: NetBSD's <stdint.h> expects  __STDC_LIMIT_MACROS and
                    __STDC_CONSTANT_MACROS
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: redi at gcc dot gnu.org
              Host: *-*-netbsd5.1
            Target: *-*-netbsd5.1
             Build: *-*-netbsd5.1

Contrary to the requirements of the C++ standard, <stdint.h> on NetBSD 5.1 only
defines its helper macros conditionally:

#if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
#include <machine/int_limits.h>
#endif

#if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)
#include <machine/int_const.h>
#endif


This causes lots of test failures like:

/home/jwakely/src/gcc/libstdc++-v3/include/ext/random.tcc:69:52: error:
'UINT32_C' was not declared in this scope


Maybe we should make <bits/c++config.h> define those macros for targets that
incorrectly think they are required.

[Bug libstdc++/65806] NetBSD's <stdint.h> expects __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65806

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It's fixed in NetBSD 7:

http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/sys/stdint.h?rev=1.7&content-type=text/x-cvsweb-markup&only_with_tag=MAIN

[Bug libstdc++/65806] NetBSD's <stdint.h> expects __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65806

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Hmm, why doesn't GCC's own stdint.h solve this? It does:

# if defined __cplusplus && __cplusplus >= 201103L
#  undef __STDC_LIMIT_MACROS
#  define __STDC_LIMIT_MACROS
#  undef __STDC_CONSTANT_MACROS
#  define __STDC_CONSTANT_MACROS
# endif
# include_next <stdint.h>

[Bug libstdc++/65806] NetBSD's <stdint.h> expects __STDC_LIMIT_MACROS and __STDC_CONSTANT_MACROS

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65806

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-09-16
     Ever confirmed|0                           |1

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #2)
> Hmm, why doesn't GCC's own stdint.h solve this?

Because gcc/Makefile has:

# How to handle <stdint.h>.
USE_GCC_STDINT = none

which is because gcc/config.gcc never sets it. Easy to fix ...