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Diffstat (limited to 'includes/rts')
| -rw-r--r-- | includes/rts/PosixSource.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/includes/rts/PosixSource.h b/includes/rts/PosixSource.h new file mode 100644 index 0000000000..13fd7b0ff5 --- /dev/null +++ b/includes/rts/PosixSource.h @@ -0,0 +1,38 @@ +/* ----------------------------------------------------------------------------- + * + * (c) The GHC Team, 1998-2005 + * + * Include this file into sources which should not need any non-Posix services. + * That includes most RTS C sources. + * ---------------------------------------------------------------------------*/ + +#pragma once + +#include <ghcplatform.h> + +/* 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. + + However, the use of `strnlen`, which is strictly speaking only available in + IEEE Std 1003.1-2008 (XPG7), requires lifting the bounds, to be able to + compile ghc on systems that are strict about enforcing the standard, e.g. + Apples mobile platforms. + + Oracle's Solaris 11 supports only up to XPG6, hence the ifdef. + */ + +#if defined(solaris2_HOST_OS) +#define _POSIX_C_SOURCE 200112L +#define _XOPEN_SOURCE 600 +#else +#define _POSIX_C_SOURCE 200809L +#define _XOPEN_SOURCE 700 +#endif |