--- xf86bigfont.c.old	2004-09-19 23:23:26.000000000 -0400
+++ xf86bigfont.c	2004-09-19 23:37:34.000000000 -0400
@@ -99,7 +99,7 @@ static int FontShmdescIndex;
 
 static unsigned int pagesize;
 
-#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__)
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__CYGWIN__) || defined(__linux__) || defined(sun)
 
 #include <sys/signal.h>