| /* |
| ******************************************************************************* |
| * Copyright (C) 2011-2012, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| ******************************************************************************* |
| * file name: uposixdefs.h |
| * encoding: US-ASCII |
| * tab size: 8 (not used) |
| * indentation:4 |
| * |
| * created on: 2011jul25 |
| * created by: Markus W. Scherer |
| * |
| * Common definitions for implementation files working with POSIX functions. |
| * *Important*: #include this file before any other header files! |
| */ |
| |
| #ifndef __UPOSIXDEFS_H__ |
| #define __UPOSIXDEFS_H__ |
| |
| /* |
| * Define _XOPEN_SOURCE for access to POSIX functions. |
| * |
| * We cannot use U_PLATFORM from platform.h/utypes.h because |
| * "The Open Group Base Specifications" |
| * chapter "2.2 The Compilation Environment" says: |
| * "In the compilation of an application that #defines a feature test macro |
| * specified by IEEE Std 1003.1-2001, |
| * no header defined by IEEE Std 1003.1-2001 shall be included prior to |
| * the definition of the feature test macro." |
| */ |
| #ifdef _XOPEN_SOURCE |
| /* Use the predefined value. */ |
| #else |
| /* |
| * Version 6.0: |
| * The Open Group Base Specifications Issue 6 (IEEE Std 1003.1, 2004 Edition) |
| * also known as |
| * SUSv3 = Open Group Single UNIX Specification, Version 3 (UNIX03) |
| * |
| * Note: This definition used to be in C source code (e.g., putil.c) |
| * and define _XOPEN_SOURCE to different values depending on __STDC_VERSION__. |
| * In C++ source code (e.g., putil.cpp), __STDC_VERSION__ is not defined at all. |
| */ |
| # define _XOPEN_SOURCE 600 |
| #endif |
| |
| /* |
| * Make sure things like readlink and such functions work. |
| * Poorly upgraded Solaris machines can't have this defined. |
| * Cleanly installed Solaris can use this #define. |
| * |
| * z/OS needs this definition for timeval and to get usleep. |
| */ |
| #if !defined(_XOPEN_SOURCE_EXTENDED) |
| # define _XOPEN_SOURCE_EXTENDED 1 |
| #endif |
| |
| /* |
| * There is an issue with turning on _XOPEN_SOURCE_EXTENDED on certain platforms. |
| * A compatibility issue exists between turning on _XOPEN_SOURCE_EXTENDED and using |
| * standard C++ string class. As a result, standard C++ string class needs to be |
| * turned off for the follwing platforms: |
| * -AIX/VACPP |
| * -Solaris/GCC |
| */ |
| #if (U_PLATFORM == U_PF_AIX && !defined(__GNUC__)) || (U_PLATFORM == U_PF_SOLARIS && defined(__GNUC__)) |
| # if _XOPEN_SOURCE_EXTENDED && !defined(U_HAVE_STD_STRING) |
| # define U_HAVE_STD_STRING 0 |
| # endif |
| #endif |
| |
| #endif /* __UPOSIXDEFS_H__ */ |
