Nice job, sorry I don't use the Nim programming language. On Wed, Jul 4, 2018 at 1:12 AM, Matic Kukovec via gtk-app-devel-list < gtk-app-devel-list@gnome.org> wrote:
> Found the problem. > To solve it the Nim application needs to load it's shared libraries with > dlopen(RTLD_GLOBAL). > > Regards, > Matic > ________________________________ > From: gtk-app-devel-list <gtk-app-devel-list-boun...@gnome.org> on behalf > of Matic Kukovec via gtk-app-devel-list <gtk-app-devel-list@gnome.org> > Sent: Thursday, June 28, 2018 8:34 PM > To: gtk-app-devel-list@gnome.org > Subject: Simple GTK3 application in Nim? > > Hi guys, > > I have a very simple application written in the Nim programming language, > which transpiles to C and is then compiled with GCC on Linux. > The application is very simple and uses the IUP shared library which > underneath uses GTK3. Here is the code, just for reference: > import os > import iup > > iup.open(nil, nil) > var font_dialog = fontDlg() > font_dialog.popup(IUP_CURRENT, IUP_CURRENT) > font_dialog.destroy() > iup.close() > > When running the application, this error is thrown: > $ ./test > > (test:6635): Gtk-WARNING **: Unknown type PangoFontFamily specified in > treemodel model > > (test:6635): Gtk-WARNING **: Unknown type PangoFontFace specified in > treemodel model > > (test:6635): Gtk-WARNING **: > /home/pi/gtk+3.0-3.22.11/./gtk/gtkliststore.c:516: > Invalid type (null) > > (test:6635): Gtk-WARNING **: > /home/pi/gtk+3.0-3.22.11/./gtk/gtkliststore.c:516: > Invalid type (null) > > (test:6635): GLib-GObject-CRITICAL **: g_value_type_transformable: > assertion 'G_TYPE_IS_VALUE (src_type)' failed > > (shutdown:6635): GLib-GObject-CRITICAL **: g_value_type_transformable: > assertion 'G_TYPE_IS_VALUE (src_type)' failed > > (test:6635): GLib-GObject-WARNING **: > /build/glib2.0-F5w919/glib2.0-2.50.3/./gobject/gtype.c:4264: > type id '0' is invalid > > (test:6635): GLib-GObject-WARNING **: can't peek value table for type > '<invalid>' which is not currently referenced > Traceback (most recent call last) > test.nim(7) test > SIGSEGV: Illegal storage access. (Attempt to read from nil?) > > Now the problem, as far as I can guess, is that Nim behind the scenes uses > the dlopen function to link to the IUP shared library, which messes up > something with GTK. > I may be completely wrong on this, I drew this conclusion from this > wxWidgets issue: https://trac.wxwidgets.org/ticket/16820#no1 > > Can someone point me in a direction of how this can be fixed, because I do > not have enough experience with this subject? > > Thank you, > Matic > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
