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From:
Stefan Sperling <stsp@stsp.name>
Subject:
Re: Unbreak development built if NCURSES_CONST is const
To:
Christian Weisgerber <naddy@mips.inka.de>
Cc:
gameoftrees@openbsd.org
Date:
Fri, 11 Dec 2020 00:27:30 +0100

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On Fri, Dec 11, 2020 at 12:19:28AM +0100, Christian Weisgerber wrote:
> Starting with version 6.0, ncurses defaults to adding a few more
> consts to its headers by way of the NCURSES_CONST define.  OpenBSD
> is still on ncurses 5.7, but FreeBSD and I guess most Linux
> distributions have moved on.  I intend to switch OpenBSD's ncurses
> to "#define NCURSES_CONST const" soon, which breaks got's -Werror
> build:
> 
> cc -O2 -pipe -O0 -g -Werror -Wall -Wstrict-prototypes -Wunused-variable  -MD -MP -I/home/naddy/got/tog/../include -I/home/naddy/got/tog/../lib -DGOT_LIBEXECDIR=/home/naddy/bin -DGOT_VERSION=0.45-current -c /home/naddy/got/tog/tog.c
> /home/naddy/got/tog/tog.c:949:13: error: assigning to 'struct tog_view *' from 'const void *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
>         view_above = panel_userptr(panel);
>                    ^ ~~~~~~~~~~~~~~~~~~~~
> 1 error generated.
> 
> Here's a fix:

Perfect, another tog fix! :) Ok
 
> diff 437adc9d5be73b4b89441362ec89de754374a5a6 /home/naddy/got
> blob - 457fcc6885530f6eb53c478998fd277562f91f45
> file + tog/tog.c
> --- tog/tog.c
> +++ tog/tog.c
> @@ -937,7 +937,7 @@ void
>  view_vborder(struct tog_view *view)
>  {
>  	PANEL *panel;
> -	struct tog_view *view_above;
> +	const struct tog_view *view_above;
>  
>  	if (view->parent)
>  		return view_vborder(view->parent);
> -- 
> Christian "naddy" Weisgerber                          naddy@mips.inka.de
> 
>