1 /* 2 * Copyright (c) 2021 Calvin Rose 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to 6 * deal in the Software without restriction, including without limitation the 7 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 8 * sell copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 20 * IN THE SOFTWARE. 21 */ 22 23 /* Feature test macros */ 24 25 #ifndef JANET_FEATURES_H_defined 26 #define JANET_FEATURES_H_defined 27 28 #if defined(__NetBSD__) || defined(__APPLE__) || defined(__OpenBSD__) \ 29 || defined(__bsdi__) || defined(__DragonFly__) 30 /* Use BSD source on any BSD systems, include OSX */ 31 # define _BSD_SOURCE 32 #else 33 /* Use POSIX feature flags */ 34 # ifndef _POSIX_C_SOURCE 35 # define _POSIX_C_SOURCE 200809L 36 # endif 37 #endif 38 39 #if defined(WIN32) || defined(_WIN32) 40 #define WIN32_LEAN_AND_MEAN 41 #endif 42 43 /* Needed for realpath on linux */ 44 #if !defined(_XOPEN_SOURCE) && (defined(__linux__) || defined(__EMSCRIPTEN__)) 45 #define _XOPEN_SOURCE 500 46 #endif 47 48 /* Needed for timegm and other extensions when building with -std=c99. 49 * It also defines realpath, etc, which would normally require 50 * _XOPEN_SOURCE >= 500. */ 51 #if !defined(_NETBSD_SOURCE) && defined(__NetBSD__) 52 #define _NETBSD_SOURCE 53 #endif 54 55 #endif 56