--- backend/ps/ps-interpreter.c	2007-05-14 10:19:02 +0100
+++ backend/ps/ps-interpreter.c	2007-05-14 10:18:56 +0100
@@ -26,6 +26,7 @@
 #include <gtk/gtkwindow.h>
 #include <gdk/gdk.h>
 #include <gdk/gdkx.h>
+#include <signal.h>
 #include <string.h>
 #include <stdlib.h>
 #include <sys/wait.h>
--- backend/impress/zip.c	2006-07-10 15:03:38 -0600
+++ backend/impress/zip.c	2007-05-14 00:01:37 -0600
@@ -9,6 +9,8 @@
 #include <zlib.h>
 #define _(x) x
 
+typedef unsigned long ulong;
+
 enum {
 	ZIP_OK = 0,
 	ZIP_NOMEM,