diff -Nurp examples/grab_partial_image.c examples/grab_partial_image.c
--- examples/grab_partial_image.c	2005-09-09 08:14:35.000000000 +0000
+++ examples/grab_partial_image.c	2006-03-04 19:26:26.925022000 +0000
@@ -236,7 +236,7 @@ int main(int argc, char *argv[]) 
     /*---------------------------------------------------------------------
      *  output elapsed time
      *---------------------------------------------------------------------*/
-    elapsed_time = (float)(times(&tms_buf) - start_time) / CLK_TCK;
+    elapsed_time = (float)(times(&tms_buf) - start_time) / CLOCKS_PER_SEC;
     printf( "got frame %d. elapsed time: %g sec ==> %g frames/second\n",
             i, elapsed_time, (float)i / elapsed_time);
   }