[PATCH] Display fill column indicator issue.

[Ergus <spacibba@aol.com>]

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Hi Eli:

Could you check and apply this fix?

Best,
Ergus

On Wed, Jun 02, 2021 at 12:24:23PM +0200, Ergus wrote:
>Hi Eli:
>
>I have observed that recently the column indicator changed its behavior
>(maybe it did some time ago but I haven't noticed).
>
>When scrolling horizontally the indicator line is supposed to scroll too
>with the text; but right now it is always in the same "screen" column.
>
>The issue is only on terminal because in gui the line moves
>correctly. So the problem should be in xdisp.c:22390 because it should
>substract the horizontal offset of the current starting column (maybe
>it->first_visible_x or similar).
>
>Could you push this fix please? I have to recover my Savannah private
>keys and I don't have time now.
>
>Thanks in advance,
>Ergus
>

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diff --git a/src/xdisp.c b/src/xdisp.c
index 0a95aa32f9..68bcbbe5d1 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -22387,7 +22387,8 @@ extend_face_to_end_of_line (struct it *it)
                      default_face->id : face->id);
 
       /* Display fill-column indicator if needed.  */
-      const int indicator_column = fill_column_indicator_column (it, 1);
+      const int indicator_column =
+	fill_column_indicator_column (it, 1) - it->first_visible_x;
 
       /* Make sure our idea of current_x is in sync with the glyphs
 	 actually in the glyph row.  They might differ because