diff -Nrua prboom-2.5.0-old/src/SDL/i_video.c prboom-2.5.0/src/SDL/i_video.c
--- prboom-2.5.0-old/src/SDL/i_video.c	2009-10-13 18:48:47.000000000 +0200
+++ prboom-2.5.0/src/SDL/i_video.c	2009-10-13 18:51:16.000000000 +0200
@@ -181,6 +181,9 @@
 
   case SDL_KEYUP:
   {
+     if (Event->key.keysym.sym == SDLK_HOME)
+       exit(0);
+
     event.type = ev_keyup;
     event.data1 = I_TranslateKey(&Event->key.keysym);
     D_PostEvent(&event);