updated for version 7.3.739

Problem:    Computing number of lines may have an integer overflow.
Solution:   Check for MAXCOL explicitly. (Dominique Pelle)

Author: brammool

src/move.c

@@ -2576,7 +2576,7 @@ get_scroll_overlap(lp, dir)
     else
 	topline_back(lp);
     h2 = lp->height;
-    if (h2 + h1 > min_height)
+    if (h2 == MAXCOL || h2 + h1 > min_height)
     {
 	*lp = loff0;	/* no overlap */
 	return;
@@ -2588,7 +2588,7 @@ get_scroll_overlap(lp, dir)
     else
 	topline_back(lp);
     h3 = lp->height;
-    if (h3 + h2 > min_height)
+    if (h3 == MAXCOL || h3 + h2 > min_height)
     {
 	*lp = loff0;	/* no overlap */
 	return;
@@ -2600,7 +2600,7 @@ get_scroll_overlap(lp, dir)
     else
 	topline_back(lp);
     h4 = lp->height;
-    if (h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height)
+    if (h4 == MAXCOL || h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height)
 	*lp = loff1;	/* 1 line overlap */
     else
 	*lp = loff2;	/* 2 lines overlap */

src/version.c

@@ -725,6 +725,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    739,
 /**/
     738,
 /**/