patch 7.4.862

Problem:    Still problems with pango_shape_full() not available.
Solution:   Change AC_TRY_COMPILE to AC_TRY_LINK.

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    862,
 /**/
     861,
 /**/