Benedikt Schindler schreef:
i recompiled the hole fpc with the option "-gl" and the patch Paul
Ishenin mentioned.
there is still a problem with programms, that wonna use windows.
console prorgamms just work fine.
if i try to run a lazarus programm i get this backtrace.
Program received signal SIGSEGV, Segmentation fault.
0x49534e40 in ?? ()
(gdb) cont
Continuing.
Program received signal SIGSEGV, Segmentation fault.
0x4052d860 in g_object_unref () from /usr/lib/libgobject-2.0.so.0
(gdb) bt
#0 0x4052d860 in g_object_unref () from /usr/lib/libgobject-2.0.so.0
#1 0x0015ada0 in TGTK2WIDGETSET__DESTROY (vmt=0xffffffff,
this=0x40b8e020) at
/media/mmcblk0p3/lazarus/lcl/interfaces/gtk2/gtk2widgetset.inc:551
#2 0x0015ad04 in TGTK2WIDGETSET__CREATE (vmt=0x205fc8, this=0x40b8e020)
at /media/mmcblk0p3/lazarus/lcl/interfaces/gtk2/gtk2widgetset.inc:547
#3 0x0003b164 in CREATEWIDGETSET (AWIDGETSETCLASS=<incomplete type>) at
/media/mmcblk0p3/lazarus/lcl/forms.pp:1706
#4 0x0003a8a0 in INTERFACES_init () at
/media/mmcblk0p3/lazarus/lcl/interfaces/gtk2/interfaces.pas:39
#5 0x00031a50 in fpc_initializeunits () at
/media/mmcblk0p3/fpc/rtl/inc/system.inc:766
#6 0x00019a8c in main () at om_test_suite.lpr:13
What I think that happens is:
The constructor TGTK2WIDGETSET.CREATE fails somehow, unclear from this
back trace, but probably before or in im_context:=gtk_im_multicontext_new;
The destructor is called which tries to cleanup im_context, which fails,
because im_context has not been intialized correctly.
This particular crash may be prevented by using this destructor:
destructor TGtk2WidgetSet.Destroy;
begin
if im_context<>nil then
g_object_unref(im_context);
im_context:=nil;
im_context_widget:=nil;
inherited Destroy;
end;
Nevertheless, it doesn't solve the exception in the constructor on
TGtk2Widget.
Vincent
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