Make it so Backend_Init can fail

src/Backends/GLFW3/Misc.cpp

@@ -150,9 +150,12 @@ static void DragAndDropCallback(GLFWwindow *window, int count, const char **path
 	LoadProfile(paths[0]);
 }
 
-void Backend_Init(void)
+BOOL Backend_Init(void)
 {
-	glfwInit();
+	if (glfwInit() == GL_TRUE)
+		return TRUE;
+	else
+		return FALSE;
 }
 
 void Backend_Deinit(void)

src/Backends/Misc.h

@@ -85,7 +85,7 @@ enum
 
 extern BOOL bActive;
 
-void Backend_Init(void);
+BOOL Backend_Init(void);
 void Backend_Deinit(void);
 void Backend_PostWindowCreation(void);
 BOOL Backend_GetBasePath(char *string_buffer);

src/Backends/SDL2/Misc.cpp

@@ -30,12 +30,12 @@ static unsigned char *cursor_surface_pixels;
 static SDL_Surface *cursor_surface;
 static SDL_Cursor *cursor;
 
-void Backend_Init(void)
+BOOL Backend_Init(void)
 {
-	SDL_Init(SDL_INIT_EVENTS);
-
-	SDL_InitSubSystem(SDL_INIT_VIDEO);
-
+	if (SDL_Init(SDL_INIT_EVENTS) == 0)
+	{
+		if (SDL_InitSubSystem(SDL_INIT_VIDEO) == 0)
+		{
 			puts("Available SDL2 video drivers:");
 
 			for (int i = 0; i < SDL_GetNumVideoDrivers(); ++i)
@@ -45,6 +45,14 @@ void Backend_Init(void)
 
 			if (driver != NULL)
 				printf("Selected SDL2 video driver: %s\n", driver);
+
+			return TRUE;
+		}
+
+		SDL_Quit();
+	}
+
+	return FALSE;
 }
 
 void Backend_Deinit(void)

src/Main.cpp

@@ -88,7 +88,8 @@ int main(int argc, char *argv[])
 
 	int i;
 
-	Backend_Init();
+	if (!Backend_Init())
+		return EXIT_FAILURE;
 
 	// Get executable's path
 	if (!Backend_GetBasePath(gModulePath))