patch 8.2.3260: build failure with small features

Problem:    Build failure with small features.
Solution:   Add #ifdef.
diff --git a/src/version.c b/src/version.c
index a3f1d12..cbb0283 100644
--- a/src/version.c
+++ b/src/version.c
@@ -756,6 +756,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    3260,
+/**/
     3259,
 /**/
     3258,