mailing-list for TeXmacs Users

[Martin Costabel <address@hidden>]

Henri Lesourd wrote:
> Peter Rapčan wrote:
>
> > Hi,
> >
> > After upgrading to the latest fink unstable version my Texmacs 
> > segfaults when closing a document . See the standard output:
> >
> > texmacs
> > TeXmacs] With linked TrueType support
> > TeXmacs] Loading corktounicode
> > TeXmacs] Loading unicode-cork-oneway
> > TeXmacs] Loading tmuniversaltounicode
> > TeXmacs] Loading unicode-symbol-oneway
> > Segmentation fault
> This is a known bug which appeared some versions ago,
> as far as I can remember (see e.g. mails on TeXmacs-dev
> from 1/11/08).
>
> I'm currently plugging back the actions in the menus
> of my Qt version of TeXmacs, thus I should come across
> this bug soon.

I can tell you the line where it happens:

In src/Texmacs/Data/tm_data.cpp, the last line of 
tm_data_rep::delete_view ():

  delete vw;

But I cannot explain it; my grasp of C++ is too weak. In particular I 
have no idea what happens when a destructor is called that is not defined.

If one simply removes this line, the crash disappears. The trade-off may 
be a memory leak or worse, but anyway, I am tentatively updating the 
Fink texmacs package to 1.0.6.12-2 with this removal, and we'll see what 
happens.

--
Martin


--
Martin