Hisashi T Fujinaka wrote:

> > On Thu, 21 Apr 2022, Bram Moolenaar wrote:
> >
> >> 
> >>> After this commit I get this error:
> >>> 
> >>> gui_gtk_x11.c:4139:14: error: implicit declaration of function 
> >>> 'gdk_window_get_width' is invalid in C99 [-Werror,-Wimplicit-function
> >>> -declaration]
> >>>      int         w = gdk_window_get_width(win);
> >>>                      ^
> >>> gui_gtk_x11.c:4140:14: error: implicit declaration of function 
> >>> 'gdk_window_get_height' is invalid in C99 [-Werror,-Wimplicit-functio
> >>> n-declaration]
> >>>      int         h = gdk_window_get_height(win);
> >>>                      ^
> >>> gui_gtk_x11.c:4140:14: note: did you mean 'gdk_window_get_origin'?
> >>> /opt/sw/include/gtk-2.0/gdk/gdkwindow.h:541:12: note: 
> >>> 'gdk_window_get_origin' declared here
> >>> gint          gdk_window_get_origin      (GdkWindow       *window,
> >>>                ^
> >>> 2 errors generated.
> >>> 
> >>> The Bisect looks like this:
> >>> 
> >>> %git bisect good
> >>> 280aebfd356c4fc8b84f13314068411157ad72f2 is the first bad commit
> >>> commit 280aebfd356c4fc8b84f13314068411157ad72f2
> >>> Author: Bram Moolenaar <[email protected]>
> >>> Date:   Sun Apr 17 17:34:42 2022 +0100
> >>>
> >>>      patch 8.2.4775: SpellBad highlighting does not work in Konsole
> >>>
> >>>      Problem:    SpellBad highlighting does not work in Konsole.
> >>>      Solution:   Do not keep t_8u defined for Konsole.  Redraw when t_8u 
> >>> is reset.
> >>>                  (closes #10177)
> >>>
> >>>   src/term.c    | 13 ++++++++++---
> >>>   src/version.c |  2 ++
> >>>   2 files changed, 12 insertions(+), 3 deletions(-)
> >> 
> >> That patch doesn't change anything for the gui_gtk_x11.c file or what
> >> could be related to the error.
> >> 
> >> The declarations should be in gdk/gdkwindow.h.  Don't see a problem with
> >> that.
> >> 
> >> Perhaps configure didn't run correctly?
> >
> > Seemed odd to me too, but that's where I ended up with git bisect. I can
> > retry the bisection if you'd like.
> 
> OK, looks like it's the NEXT commit.
> 
>   git bisect bad
> 9f53e7bd7f0865585a5447fa3665c5d4c4f91408 is the first bad commit
> commit 9f53e7bd7f0865585a5447fa3665c5d4c4f91408
> Author: Ernie Rael <[email protected]>
> Date:   Sun Apr 17 18:27:49 2022 +0100
> 
>      patch 8.2.4776: GTK: 'lines' and 'columns' may change during startup
> 
>      Problem:    GTK: 'lines' and 'columns' may change during startup.
>      Solution:   Ignore stale GTK resize events. (Ernie Rael, closes #10179)
> 
>   src/gui_gtk_x11.c | 168 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++--
>   src/version.c     |   2 +
>   2 files changed, 164 insertions(+), 6 deletions(-)

Yes, that makes sense, the functions were added in that patch.

What I don't understand is why the header file isn't found.  On my
system the file included from gui_gtk_x11.c includes "gdk/gdk.h", 
which is found in /usr/include/gtk-3.0/gdk/gdk.h or in 
/usr/include/gtk-2.0/gdk/gdk.h.  Both then include gdk/gdkwindow.h in
the same directory which is where the declaration is found.

What is different on your system?

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