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| author | Karel Gardas <karel.gardas@centrum.cz> | 2016-03-29 12:21:54 +0200 |
|---|---|---|
| committer | Karel Gardas <karel.gardas@centrum.cz> | 2016-03-29 15:55:12 +0200 |
| commit | be2a7baf15c6cf414e2287bff3ed345c50de88bd (patch) | |
| tree | 5da37b243cf2abf0c617dce81de4519c51b57333 /rts/PosixSource.h | |
| parent | b0ab8db61568305f50947058fc5573e2382c84eb (diff) | |
| download | haskell-be2a7baf15c6cf414e2287bff3ed345c50de88bd.tar.gz | |
cleanup POSIX/XOPEN defines for switch to C99
Summary:
This patch cleans up various POSIX and XOPEN defines.
We aim to switch to C99 solely and for this the lowest version
of supported POSIX/XOPEN is:
_XOPEN_SOURCE 600
_POSIX_C_SOURCE 200112L
Test Plan:
tested on Solaris 11 and OpenBSD 5.9. Should be good
also on Solaris 10, FreeBSD and DragonFlyBSD. We need to test
on Mac OS X, Linux and MinGW
Reviewers: austin, bgamari, erikd, hvr
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D2056
Diffstat (limited to 'rts/PosixSource.h')
| -rw-r--r-- | rts/PosixSource.h | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/rts/PosixSource.h b/rts/PosixSource.h index 6246e3e35b..f4b880e525 100644 --- a/rts/PosixSource.h +++ b/rts/PosixSource.h @@ -11,25 +11,21 @@ #include <ghcplatform.h> -#if defined(freebsd_HOST_OS) || defined(dragonfly_HOST_OS) || defined(solaris2_HOST_OS) +/* We aim for C99 so we need to define following two defines in a consistent way + with what POSIX/XOPEN provide for C99. Some OSes are particularly picky about + the right versions defined here, e.g. Solaris + We also settle on lowest version of POSIX/XOPEN needed for proper C99 support + here which is POSIX.1-2001 compilation and Open Group Technical Standard, + Issue 6 (XPG6). XPG6 itself is a result of the merge of X/Open and POSIX + specification. It is also referred as IEEE Std. 1003.1-2001 or ISO/IEC + 9945:2002 or UNIX 03 and SUSv3. + Please also see trac ticket #11757 for more information about switch + to C99/C11. +*/ #define _POSIX_C_SOURCE 200112L #define _XOPEN_SOURCE 600 -#else -#define _POSIX_SOURCE 1 -#define _POSIX_C_SOURCE 199506L -#define _XOPEN_SOURCE 500 -// FreeBSD takes a different approach to _ISOC99_SOURCE: on FreeBSD it -// means "I want *just* C99 things", whereas on GNU libc and Solaris -// it means "I also want C99 things". -// -// On both GNU libc and FreeBSD, _ISOC99_SOURCE is implied by -// _XOPEN_SOURCE==600, but on Solaris it is an error to omit it. -#define _ISOC99_SOURCE -// Defining __USE_MINGW_ANSI_STDIO is the most portable way to tell -// mingw that we want to use the standard %lld style format specifiers, -// rather than the Windows %I64d style + #define __USE_MINGW_ANSI_STDIO 1 -#endif #if defined(darwin_HOST_OS) /* If we don't define this the including sysctl breaks with things like |