diff --git a/code/SDL2/strangebug.c b/code/SDL2/strangebug.c
index 02ef810..5a6969e 100644
--- a/code/SDL2/strangebug.c
+++ b/code/SDL2/strangebug.c
@@ -1,5 +1,8 @@
 /*
  *	Strange Bug ?
+ *
+ * gcc -Wall strangebug.c -lSDL2 -o strangebug
+ *
  */
 
 #include   <stdio.h>
@@ -11,11 +14,14 @@ int main(int argc, char *argv[])
 {
 SDL_Window	*win;
 SDL_Renderer	*rend;
-int		idx, idy;
+int		foo, idx, idy;
 
-if(SDL_CreateWindowAndRenderer(256, 256, SDL_WINDOW_SHOWN, &win, &rend))
-	{
-	fprintf(stderr, "Err SDL_CreateWindowAndRenderer : %s", SDL_GetError());
+foo = SDL_CreateWindowAndRenderer(256, 256,
+			SDL_WINDOW_SHOWN, &win, &rend);
+if (foo) {
+	fprintf(stderr,
+		"Err %d CreateWindowAndRenderer : %s",
+		foo, SDL_GetError());
         exit(1);
 	}
 SDL_SetRenderDrawColor(rend, 255, 0, 0, 0);
@@ -24,11 +30,12 @@ SDL_RenderPresent(rend);
 
 for (idx=0; idx<256; idx++) {
 	for (idy=0; idy<256; idy++) {
-		SDL_SetRenderDrawColor(rend, 127, idx, idy, 0);
+		SDL_SetRenderDrawColor(rend,
+				127, idx, idy, 0);
 		SDL_RenderDrawPoint(rend, idx, idy);
 		}
 	SDL_RenderPresent(rend);
-	// SDL_Delay(50);		/* Is the bug here ? */
+	// SDL_Delay(50);	/* Is the bug here ? */
 	}
 SDL_RenderPresent(rend);
 sleep(30);