> Michael Wookey wrote:
>
> > > One bug that I didn't fix. Build gvim.exe with OLE=no, run 'gvim -
> register',
> > > and watch it crash while trying to display an error message.
> >
> > This seems to fix the bug...
> >
> > Index: src/message.c
> > ===================================================================
> > --- src/message.c (revision 212)
> > +++ src/message.c (working copy)
> > @@ -2987,7 +2987,7 @@
> > * If 'verbosefile' is set write message in that file.
> > * Must come before the rest because of updating "msg_col".
> > */
> > - if (*p_vfile != NUL)
> > + if (p_vfile && *p_vfile != NUL)
> > verbose_write(s, maxlen);
> >
> > if (redir_fd != NULL
> > Index: src/misc2.c
> > ===================================================================
> > --- src/misc2.c (revision 212)
> > +++ src/misc2.c (working copy)
> > @@ -1748,7 +1748,7 @@
> > return NULL;
> > }
> > #endif
> > - while ((b = *p) != NUL)
> > + while (p && (b = *p) != NUL)
> > {
> > if (b == c)
> > return p;
> >
>
> Well, that may fix it, but the problem is that the order of
> initializations is violated. Normally all option pointers are not
> NULL.
>
> What is the message that triggers this problem? That message should
> probably be changed to mch_errmsg().
The actual error message "wrapper" is src/gui_w32:ole_error() which just
wraps EMSG2(). When calling "gvim -register", the error propagates from
src/gui_w32.c:gui_mch_prepare().
I agree that the above patch fixes the symptom of the bug, but not the
true cause.
cheers