This is from Debian and makes koules compile a bit more cleanly.

--- koules-1.4.orig/xlib/interface.c
+++ koules-1.4/xlib/interface.c
@@ -154,7 +155,7 @@
 	  {
 	    register unsigned char *data = (unsigned char *) source.vbuff,
 	                   *end = (unsigned char *) source.vbuff + MAPWIDTH * (MAPHEIGHT + 20);
-	    register unsigned long *out = (unsigned long *) source.ximage->data;
+	    register uint32_t *out = (uint32_t *) source.ximage->data;
 	    while (data < end)
 	      {
 		*out = rpixels[*data];
--- koules-1.4.orig/koules.sndsrv.linux.c
+++ koules-1.4/koules.sndsrv.linux.c
@@ -181,7 +180,7 @@
 void
 do_everything (int dsp, int is_pcsp)
 {
-  char            k;
+  signed char     k;
   int             i, j;
   int             terminate = -1;	/* Which Sound to Terminate                              */
   int             playing[16];	/* Sound numbers that we are playing                     */
Index: koules-1.4/rcfiles.c
===================================================================
--- koules-1.4.orig/rcfiles.c	2006-11-03 11:12:56.000000000 +0100
+++ koules-1.4/rcfiles.c	2006-11-03 11:12:58.000000000 +0100
@@ -20,6 +20,7 @@
 /* Changes for joystick "accelerate by deflection"         *
  *  (c) 1997 by Ludvik Tesar (Ludv\'{\i}k Tesa\v{r})       *
  ************************LT*********************************/
+#include <errno.h>
 #include "koules.h"
 #ifdef XSUPPORT
 static CONST char *name = ".xkoules-controls";
Index: koules-1.4/xlib/interface.c
===================================================================
--- koules-1.4.orig/xlib/interface.c	1998-03-05 18:19:44.000000000 +0100
+++ koules-1.4/xlib/interface.c	2006-11-03 11:12:58.000000000 +0100
@@ -14,6 +14,7 @@
 *----------------------------------------------------------*
 *  interface.c interface xlib graphics functions           *
 ***********************************************************/
+#include <stdint.h>
 #include <X11/Xlib.h>
 #include <X11/keysym.h>
 #include <X11/keysymdef.h>
Index: koules-1.4/xlib/init.c
===================================================================
--- koules-1.4.orig/xlib/init.c	2006-11-03 11:12:54.000000000 +0100
+++ koules-1.4/xlib/init.c	2006-11-03 11:12:58.000000000 +0100
@@ -30,6 +30,7 @@
 #include "../framebuffer.h"
 
 #include <sys/time.h>
+#include <time.h>
 #include <unistd.h>
 #include "../mygetopt.h"
 #include <sys/signal.h>
Index: koules-1.4/xlib/text.c
===================================================================
--- koules-1.4.orig/xlib/text.c	2006-11-03 11:13:03.000000000 +0100
+++ koules-1.4/xlib/text.c	2006-11-03 11:13:17.000000000 +0100
@@ -4,6 +4,7 @@
 
 #ifdef MITSHM
 #include <stdlib.h>
+#include <string.h>
 #include "inlstring.h"		/* include inline string operations */
 #include "interface.h"