Hi Hez: For my normal debian stable platform (i.e., with GTK+2 rather than the GTK+3 used for the epa_build case) our build system currently builds the example
examples/ocaml/xgtk_interfaceocaml without build issues. Also there appear to be no run-time loading issues (as checked with "ldd -r). But when I tried to run that example from examples/ocaml I get the following error messages: software@raven> ./xgtk_interfaceocaml (process:22561): GLib-GObject-WARNING **: invalid (NULL) pointer instance (process:22561): GLib-GObject-CRITICAL **: g_signal_connect_data: assertion G_TYPE_CHECK_INSTANCE (instance)' failed (process:22561): Gtk-WARNING **: Screen for GtkWindow not set; you must always set a screen for a GtkWindow before using the window (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion GDK_IS_SCREEN (screen)' failed (process:22561): Gdk-CRITICAL **: IA__gdk_colormap_get_visual: assertion GDK_IS_COLORMAP (colormap)' failed (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_default_colormap: assertion GDK_IS_SCREEN (screen)' failed (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion GDK_IS_SCREEN (screen)' failed (process:22561): Gdk-CRITICAL **: IA__gdk_screen_get_root_window: assertion GDK_IS_SCREEN (screen)' failed (process:22561): Gdk-CRITICAL **: IA__gdk_window_new: assertion GDK_IS_WINDOW (parent)' failed Segmentation fault This example was committed 4.5 years ago (with no changes since) with the message: ------------------------------------------------------------------------ r10500 | hezekiahcarty | 2009-09-30 12:39:01 -0700 (Wed, 30 Sep 2009) | 5 lines Add CMake logic to build Plcairo examples; Add first Plcairo example This example illustrates a simple use of PLplot + OCaml + Cairo + Gtk to display plot output in a GUI window. ------------------------------------------------------------------------ It is obviously less than ideal if something we build cannot be run. I suspect this example used to run OK 4.5 years ago, but it needs some maintenance now to make it work properly with all the GTK+2 changes made since. If you confirm the above run-time issue, would you be willing to do that needed maintenance? Alan __________________________ Alan W. Irwin Astronomical research affiliation with Department of Physics and Astronomy, University of Victoria (astrowww.phys.uvic.ca). Programming affiliations with the FreeEOS equation-of-state implementation for stellar interiors (freeeos.sf.net); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); the libLASi project (unifont.org/lasi); the Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project (lbproject.sf.net). __________________________ Linux-powered Science __________________________ ------------------------------------------------------------------------------ _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
