engine: simplify XASH_USE_EVDEV macro usage by giving it's defined positive value

common/defaults.h

@@ -70,7 +70,7 @@ SETUP BACKENDS DEFINITIONS
 			#define XASH_MESSAGEBOX MSGBOX_ANDROID
 		#endif // XASH_MESSAGEBOX
 
-		#define XASH_USE_EVDEV
+		#define XASH_USE_EVDEV 1
 		#define XASH_DYNAMIC_DLADDR
 	#elif XASH_LINUX
 		// we are building for Linux without SDL2, can draw only to framebuffer yet
@@ -86,7 +86,7 @@ SETUP BACKENDS DEFINITIONS
 			#define XASH_SOUND SOUND_ALSA
 		#endif // XASH_SOUND
 
-		#define XASH_USE_EVDEV
+		#define XASH_USE_EVDEV 1
 	#elif XASH_DOS4GW
 		#ifndef XASH_VIDEO
 			#define XASH_VIDEO VIDEO_DOS

engine/client/input.c

@@ -183,7 +183,7 @@ void IN_ToggleClientMouse( int newstate, int oldstate )
 #if XASH_ANDROID
 		Android_ShowMouse( true );
 #endif
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 		Evdev_SetGrab( false );
 #endif
 	}
@@ -194,7 +194,7 @@ void IN_ToggleClientMouse( int newstate, int oldstate )
 #if XASH_ANDROID
 		Android_ShowMouse( false );
 #endif
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 		Evdev_SetGrab( true );
 #endif
 	}
@@ -399,7 +399,7 @@ void IN_Shutdown( void )
 {
 	IN_DeactivateMouse( );
 
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 	Evdev_Shutdown();
 #endif
 
@@ -426,7 +426,7 @@ void IN_Init( void )
 
 		Touch_Init();
 
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 		Evdev_Init();
 #endif
 	}
@@ -532,7 +532,7 @@ static void IN_CollectInput( float *forward, float *side, float *pitch, float *y
 		*pitch += y * m_pitch->value;
 		*yaw   -= x * m_yaw->value;
 
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 		IN_EvdevMove( yaw, pitch );
 #endif
 	}
@@ -590,7 +590,7 @@ void IN_EngineAppendMove( float frametime, void *cmd1, qboolean active )
 
 void IN_Commands( void )
 {
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 	IN_EvdevFrame();
 #endif
 

engine/platform/linux/in_evdev.c

@@ -13,7 +13,7 @@ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 */
 #include "platform/platform.h"
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 
 
 #include "common.h"

engine/platform/platform.h

@@ -149,7 +149,7 @@ qboolean SW_CreateBuffer( int width, int height, uint *stride, uint *bpp, uint *
 //
 // in_evdev.c
 //
-#ifdef XASH_USE_EVDEV
+#if XASH_USE_EVDEV
 void Evdev_SetGrab( qboolean grab );
 void Evdev_Shutdown( void );
 void Evdev_Init( void );