Am Fri, 24 Sep 2021 23:20:51 -0400 schrieb Scott Kostyshak <skost...@lyx.org>:
> After building with fsanitize=undefined -fno-omit-frame-pointer, I get the
> following:
>
> $ cd lib/examples/ && lyx -e pdf Welcome.lyx
> /home/scott/lyxbuilds/master/repo/src/frontends/qt/GuiApplication.cpp:558:55:
> runtime
> error: member call on null pointer of type 'struct
> GuiApplication'
> /home/scott/lyxbuilds/master/repo/src/frontends/qt/GuiApplication.cpp:558:55:
> runtime error: member access within null pointer of type 'struct
> GuiApplication'
>
> After that, LyX gives a backtrace and crashes. I attach the backtrace in case
> it's
> useful.
>
> Just for informational purposes (I'm not proposing this as a patch), the
> following does
> fix the error:
>
> diff --git a/src/frontends/qt/GuiApplication.cpp
> b/src/frontends/qt/GuiApplication.cpp
> index 01a646de37..b93c4753c7 100644
> --- a/src/frontends/qt/GuiApplication.cpp
> +++ b/src/frontends/qt/GuiApplication.cpp
> @@ -555,6 +555,8 @@ IconInfo iconInfo(FuncRequest const & f, bool unknown,
> bool rtl)
> if (unknown)
> names << "unknown";
>
> + if (!theGuiApp())
> + return res;
> search_mode const mode = theGuiApp()->imageSearchMode();
> // The folders where icons are searched for
> QStringList imagedirs;
>
> Scott
Why not? Looks perfect to me. But probably not the only place.
Kornel
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