Re: Tabs

[Juri Linkov]

>> @@ -6308,7 +6308,7 @@ focus (where a frame immediately loses focus when it's 
>> left by the mouse
>>  #elif defined (USE_LUCID) || defined (USE_MOTIF) || defined (HAVE_NTGUI)
>>    frame_inhibit_implied_resize = list2 (Qtab_bar_lines, Qtool_bar_lines);
>>  #else
>> -  frame_inhibit_implied_resize = Qnil;
>> +  frame_inhibit_implied_resize = list1 (Qtab_bar_lines);
>>  #endif
>>  #else
>>    frame_inhibit_implied_resize = Qt;
>
> Please install the change.  We still need to understand why this
> default has any effect on the issue, but that's a separate discussion.

Actually I don't understand why the no-toolkit case should differ from
Lucid, Motif, Windows?  They all have non-external tool-bar and tab-bar.
Only GTK+ has an external tool-bar, so 'tool-bar-lines' is not included
in its default value.

Is this a more correct patch?  It uses '(tab-bar-lines tool-bar-lines)'
in the no-toolkit case as well:

diff --git a/src/frame.c b/src/frame.c
index 099db29598..fba1ed8970 100644
--- a/src/frame.c
+++ b/src/frame.c
@@ -6292,12 +6292,11 @@ focus (where a frame immediately loses focus when it's 
left by the mouse
 
 The default value is \\='(tab-bar-lines) in GTK+, (which means that
 adding/removing a tab bar does not change the frame height),
-\\='(tab-bar-lines tool-bar-lines) on Lucid, Motif and Windows
-\(which means that adding/removing a tool bar or tab bar does not
-change the frame height), nil on all other window systems (which
-means that changing any of the parameters listed above may change
-the size of the frame), and t otherwise (which means the frame size
-never changes implicitly when there's no window system support).
+\\='(tab-bar-lines tool-bar-lines) on Lucid, Motif, Windows and on all
+other window systems (which means that adding/removing a tool bar or
+tab bar does not change the frame height), and t otherwise (which
+means the frame size never changes implicitly when there's no window
+system support).
 
 Note that when a frame is not large enough to accommodate a change of
 any of the parameters listed above, Emacs may try to enlarge the frame
@@ -6305,10 +6304,8 @@ focus (where a frame immediately loses focus when it's 
left by the mouse
 #if defined (HAVE_WINDOW_SYSTEM)
 #if defined USE_GTK
   frame_inhibit_implied_resize = list1 (Qtab_bar_lines);
-#elif defined (USE_LUCID) || defined (USE_MOTIF) || defined (HAVE_NTGUI)
+#else
   frame_inhibit_implied_resize = list2 (Qtab_bar_lines, Qtool_bar_lines);
-#else
-  frame_inhibit_implied_resize = Qnil;
 #endif
 #else
   frame_inhibit_implied_resize = Qt;