Potential Fix [Was: Re: Argh. Why is this happening to me? ]

Glynn Clements wrote: OK. Rebuilt Motif with debug info. This indicates that _XmImFreeShellData is trying to free the the IM data associated with the EmacsFrame, but this has already been destroyed. Comparing input-method-{xlib,motif}.c, I see that the xlib version installs a destroyCallback handler (XIM_delete_frame) which calls XDestroyIC(). OTOH, the Motif version doesn't; in fact, grepping for XmImUnregister turns up nothing. Applying the attached patch results in an xemacs which survives preliminary testing (ten repeats of "C-x 5 2 C-x 5 0"; the unpatched version dies on the first attempt). -- Glynn Clements <glynn(a)sensei.co.uk&gt; Index: src/input-method-motif.c =================================================================== RCS file: /usr/CVSroot/XEmacs/xemacs/src/input-method-motif.c,v retrieving revision 1.9.2.3 diff -u -r1.9.2.3 input-method-motif.c --- src/input-method-motif.c 2000/01/26 12:34:03 1.9.2.3 +++ src/input-method-motif.c 2001/03/29 23:08:54 ＠＠ -94,6 +94,13 ＠＠ /* Nothing to do */ } +/* Callback for the deleting frame. */ +static void +XIM_delete_frame (Widget w, XtPointer client_data, XtPointer call_data) +{ + XmImUnregister ((Widget) client_data); +} + void XIM_init_frame (struct frame *f) { ＠＠ -152,6 +159,8 ＠＠ NULL); XmFontListEntryFree (&fontlistEntry); + + XtAddCallback (w, XmNdestroyCallback, XIM_delete_frame, (XtPointer) w); } void