X11UndefineNone.h (1629B)
1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */ 3 /* This Source Code Form is subject to the terms of the Mozilla Public 4 * License, v. 2.0. If a copy of the MPL was not distributed with this 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 6 7 // The header <X11/X.h> defines "None" as a macro that expands to "0L". 8 // This is terrible because many enumerations have an enumerator named "None". 9 // To work around this, we undefine the macro "None", and define a replacement 10 // macro named "X11None". 11 // Include this header after including X11 headers, where necessary. 12 #ifdef None 13 # undef None 14 # define X11None 0L 15 // <X11/X.h> also defines "RevertToNone" as a macro that expands to "(int)None". 16 // Since we are undefining "None", that stops working. To keep it working, 17 // we undefine "RevertToNone" and redefine it in terms of "X11None". 18 # ifdef RevertToNone 19 # undef RevertToNone 20 # define RevertToNone (int)X11None 21 # endif 22 #endif 23 24 // X11 also defines Always, which conflicts with some style system enum variant 25 // names, so get rid of that too, given we don't use it anywhere else. 26 #ifdef Always 27 # undef Always 28 #endif 29 30 // And Complex... 31 #ifdef Complex 32 # undef Complex 33 #endif 34 35 #ifdef CurrentTime 36 # undef CurrentTime 37 # define X11CurrentTime 0L 38 #endif 39 40 // X11/Xlib.h also defines True and False, get rid of those too for 41 // the same reasons as above... 42 #ifdef True 43 # undef True 44 # define X11True 1 45 #endif 46 #ifdef False 47 # undef False 48 # define X11False 0 49 #endif 50 51 #ifdef DestroyAll 52 # undef DestroyAll 53 # define X11DestroyAll 0 54 #endif