Add declaration of fork() accidentally deleted

diff --git a/klibc/SYSCALLS.def b/klibc/SYSCALLS.def
index 4912173..dbd7dc8 100644
--- a/klibc/SYSCALLS.def
+++ b/klibc/SYSCALLS.def
@@ -17,6 +17,7 @@
 ;
 <?!ia64> pid_t clone::__clone(unsigned long, void *)
 <?ia64> pid_t clone::__clone2(unsigned long, void *, void *)
+<?!sparc> pid_t fork()
 <sparc> pid_t fork@forkish()
 <!mips,mips64,sparc,ia64> pid_t vfork()
 <sparc> pid_t vfork@forkish()