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Fixed bug 3476 - round() needs _GNU_SOURCE on some old systems 

Ozkan Sezer

On systems with old glibc, such mine with glibc-2.8, the following warning
is issued and is fixed easily by defining _GNU_SOURCE:

/home/me/SDL2-2.0.5/src/video/x11/SDL_x11modes.c: In function 'CalculateXRandRRefreshRate':
/home/me/SDL2-2.0.5/src/video/x11/SDL_x11modes.c:263: warning: implicit declaration of function 'round'
/home/me/SDL2-2.0.5/src/video/x11/SDL_x11modes.c:263: warning: incompatible implicit declaration of built-in function 'round'
This commit is contained in:
Sam Lantinga 2016-11-06 09:30:06 -08:00
parent 330e2952d8
commit d780031277
1 changed files with 4 additions and 0 deletions
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4
src/video/x11/SDL_x11modes.c
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@ -18,6 +18,10 @@
misrepresented as being the original software. misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution. 3. This notice may not be removed or altered from any source distribution.
*/ */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "../../SDL_internal.h" #include "../../SDL_internal.h"
#if SDL_VIDEO_DRIVER_X11 #if SDL_VIDEO_DRIVER_X11