--- include/unixconf.h
+++ include/unixconf.h
@@ -322,10 +322,8 @@
 
 #if defined(GNOME_GRAPHICS)
 #if defined(LINUX)
-# include <linux/unistd.h>
-# if defined(__NR_getresuid) && defined(__NR_getresgid)	/* ie., >= v2.1.44 */
-#  define GETRES_SUPPORT
-# endif
+# include <unistd.h>
+# define GETRES_SUPPORT
 #else
 # if defined(BSD) || defined(SVR4)
 /*