--- src/sys/libkern/crc32.c	2007/10/06 17:22:36	1.3
+++ src/sys/libkern/crc32.c	2008/02/05 20:50:31	1.4
@@ -55,6 +55,8 @@
 #include <sys/types.h>
 #endif
 
+uint32_t crc32(const void *buf, size_t size);
+
 uint32_t crc32_tab[] = {
 	0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
 	0xe963a535, 0x9e6495a3,	0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,