--- OLD/xc/programs/xieperf/xieperf.c	Thu Jan  1 00:00:00 1970
+++ NEW/xc/programs/xieperf/xieperf.c	Thu Jan  1 00:00:00 1970
@@ -4805,6 +4805,7 @@
 {
 	ParmRec	p;
 	XiePhotomap ControlPlane;
+ extern XIEimage *GetImageStruct(); /* XXX should be prototyped */
 
 	ControlPlane = ( XiePhotomap ) NULL;
 	p.finfo.image1 = ( XIEimage * ) GetImageStruct( which );