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comparison: intl/icu/source/common/uposixdefs.h
intl/icu/source/common/uposixdefs.h
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:f5bdf4a400b6 |
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| 1 /* | |
| 2 ******************************************************************************* | |
| 3 * Copyright (C) 2011-2012, International Business Machines | |
| 4 * Corporation and others. All Rights Reserved. | |
| 5 ******************************************************************************* | |
| 6 * file name: uposixdefs.h | |
| 7 * encoding: US-ASCII | |
| 8 * tab size: 8 (not used) | |
| 9 * indentation:4 | |
| 10 * | |
| 11 * created on: 2011jul25 | |
| 12 * created by: Markus W. Scherer | |
| 13 * | |
| 14 * Common definitions for implementation files working with POSIX functions. | |
| 15 * *Important*: #include this file before any other header files! | |
| 16 */ | |
| 17 | |
| 18 #ifndef __UPOSIXDEFS_H__ | |
| 19 #define __UPOSIXDEFS_H__ | |
| 20 | |
| 21 /* | |
| 22 * Define _XOPEN_SOURCE for access to POSIX functions. | |
| 23 * | |
| 24 * We cannot use U_PLATFORM from platform.h/utypes.h because | |
| 25 * "The Open Group Base Specifications" | |
| 26 * chapter "2.2 The Compilation Environment" says: | |
| 27 * "In the compilation of an application that #defines a feature test macro | |
| 28 * specified by IEEE Std 1003.1-2001, | |
| 29 * no header defined by IEEE Std 1003.1-2001 shall be included prior to | |
| 30 * the definition of the feature test macro." | |
| 31 */ | |
| 32 #ifdef _XOPEN_SOURCE | |
| 33 /* Use the predefined value. */ | |
| 34 #else | |
| 35 /* | |
| 36 * Version 6.0: | |
| 37 * The Open Group Base Specifications Issue 6 (IEEE Std 1003.1, 2004 Edition) | |
| 38 * also known as | |
| 39 * SUSv3 = Open Group Single UNIX Specification, Version 3 (UNIX03) | |
| 40 * | |
| 41 * Note: This definition used to be in C source code (e.g., putil.c) | |
| 42 * and define _XOPEN_SOURCE to different values depending on __STDC_VERSION__. | |
| 43 * In C++ source code (e.g., putil.cpp), __STDC_VERSION__ is not defined at all. | |
| 44 */ | |
| 45 # define _XOPEN_SOURCE 600 | |
| 46 #endif | |
| 47 | |
| 48 /* | |
| 49 * Make sure things like readlink and such functions work. | |
| 50 * Poorly upgraded Solaris machines can't have this defined. | |
| 51 * Cleanly installed Solaris can use this #define. | |
| 52 * | |
| 53 * z/OS needs this definition for timeval and to get usleep. | |
| 54 */ | |
| 55 #if !defined(_XOPEN_SOURCE_EXTENDED) | |
| 56 # define _XOPEN_SOURCE_EXTENDED 1 | |
| 57 #endif | |
| 58 | |
| 59 /* | |
| 60 * There is an issue with turning on _XOPEN_SOURCE_EXTENDED on certain platforms. | |
| 61 * A compatibility issue exists between turning on _XOPEN_SOURCE_EXTENDED and using | |
| 62 * standard C++ string class. As a result, standard C++ string class needs to be | |
| 63 * turned off for the follwing platforms: | |
| 64 * -AIX/VACPP | |
| 65 * -Solaris/GCC | |
| 66 */ | |
| 67 #if (U_PLATFORM == U_PF_AIX && !defined(__GNUC__)) || (U_PLATFORM == U_PF_SOLARIS && defined(__GNUC__)) | |
| 68 # if _XOPEN_SOURCE_EXTENDED && !defined(U_HAVE_STD_STRING) | |
| 69 # define U_HAVE_STD_STRING 0 | |
| 70 # endif | |
| 71 #endif | |
| 72 | |
| 73 #endif /* __UPOSIXDEFS_H__ */ |
