fix compilation problem on gcc 4.4

diff --git a/libinterfork/interfork.c b/libinterfork/interfork.c
index a92a2bd76f50251cf139303f9603c737e6ffba62..746bbf58992bf2cb8deb9d469170d66698e3026b 100644 (file)
--- a/libinterfork/interfork.c
+++ b/libinterfork/interfork.c
@@ -26,6 +26,8 @@
 #include <ust/tracectl.h>
 #include "usterr.h"
 
+struct user_desc;
+
 pid_t fork(void)
 {
        static pid_t (*plibc_func)(void) = NULL;