diff -ur /usr/ports/x11/XFree86/work/xc/programs/Xserver/hw/xfree86/common/compiler.h programs/Xserver/hw/xfree86/common/compiler.h
--- /usr/ports/x11/XFree86/work/xc/programs/Xserver/hw/xfree86/common/compiler.h	Mon Oct 19 21:39:32 1998
+++ programs/Xserver/hw/xfree86/common/compiler.h	Tue Dec  8 10:58:16 1998
@@ -145,7 +145,21 @@
   return _inl(port);
 }
 
-# else /* defined(linux) */
+# elif defined(__FreeBSD__)
+/* for FreeBSD on Alpha, we use the libio inx/outx routines */
+/* note that the appropriate setup via "ioperm" needs to be done */
+/*  *before* any inx/outx is done. */
+
+#include <sys/types.h>
+
+extern void outb(u_int32_t port, u_int8_t val);
+extern void outw(u_int32_t port, u_int16_t val);
+extern void outl(u_int32_t port, u_int32_t val);
+extern u_int8_t inb(u_int32_t port);
+extern u_int16_t inw(u_int32_t port);
+extern u_int32_t inl(u_int32_t port);
+
+# else /* defined(__FreeBSD__) */
 
 #define outb(a, b)             /* NOP */
 #define outw(a, b)             /* NOP */