Fixed bug 3751 - DirectFB linux_input disabled by default

Clayton Craft

linux_input module is disabled by default, despite the comments in source code that it is otherwise:

src/video/directfb/SDL_DirectFB_video.c:
    devdata->use_linux_input = readBoolEnv(DFBENV_USE_LINUX_INPUT, 0);       /* default: on */

src/video/directfb/SDL_DirectFB_video.h:
    #define DFBENV_USE_LINUX_INPUT      "SDL_DIRECTFB_LINUX_INPUT"      /* Default: on  */

When using the directfb driver, the linux_input module is suppressed unless the SDL app is started with "SDL_DIRECTFB_LINUX_INPUT=1" set in the environment. I recall seeing at one point that the directfb folks recommended using linux_input over the other input drivers, but I am having trouble locating this recommendation. In any case, I believe that this should really be defaulted to 'on' since it's vastly superior to the other dfb input drivers!

src/video/directfb/SDL_DirectFB_video.c

@@ -228,8 +228,7 @@ DirectFB_VideoInit(_THIS)
             DirectFBSetOption("disable-module", "x11input");
     }
 
-    /* FIXME: Reenable as default once multi kbd/mouse interface is sorted out */
-    devdata->use_linux_input = readBoolEnv(DFBENV_USE_LINUX_INPUT, 0);       /* default: on */
+    devdata->use_linux_input = readBoolEnv(DFBENV_USE_LINUX_INPUT, 1);       /* default: on */
 
     if (!devdata->use_linux_input)
     {