Something in my system must have been updated so that go-gtk3 does not work anymore. When starting the freshly compiled go-gtk3 demo on the current go weekly i get the following error:

$ ./demo 
panic: runtime error: assignment to entry in nil map

goroutine 1 [running]:
github.com/norisatir/go-gtk3/gobject.RegisterGoType(0x40, 0x42856b, 0x42ccea, 0x4f6e6a)
        go/src/pkg/github.com/norisatir/go-gtk3/gobject/_obj/closure.cgo1.go:722 +0x43
github.com/norisatir/go-gtk3/gobject.init·2()
        go/src/pkg/github.com/norisatir/go-gtk3/gobject/_obj/closure.cgo1.go:37 +0x2d
github.com/norisatir/go-gtk3/gobject.init()
        go/src/pkg/github.com/norisatir/go-gtk3/gobject/_obj/closure.cgo1.go:1164 +0x5e
github.com/norisatir/go-gtk3/pango.init()
        go/src/pkg/github.com/norisatir/go-gtk3/pango/_obj/pango.cgo1.go:3 +0x45
main.init()
       go/src/pkg/github.com/norisatir/go-gtk3/demo/demo.go:0 +0x3b

I was able to compile the same program on the 4th of January. I looked at my distributions update log (archlinux) but could not find an update to gtk3 or similar.

Although you already state the the license in the README, would you please consider adding a LICENSE and/or COPYING file? This will keep the legal guys of my distro happier as I package this for our repos.

Thanks for the package!

Executing the following Go Get command: $ go get github.com/norisatir/go-gtk3/gtk3

The following diagnostic text shows up on my console: pkg-config --cflags gobject-2.0 Package gobject-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containing `gobject-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'gobject-2.0' found pkg-config: exit status 1

What am I missing here? Any help to get this resolved would be greatly appreciated.

-P.

Hi,

When trying to:

go get github.com/norisatir/go-gtk3/gtk3

It fails, saying that:

# github.com/norisatir/go-gtk3/gobject
gobject.go:91:1: error: 'g_type_init' is deprecated (declared at /usr/include/glib-2.0/gobject/gtype.h:669) [-Werror=deprecated-declarations]
   val, err := ConvertToGo(gv.GetPtr(), gv.gtype)
 ^
cc1: all warnings being treated as errors

When disabling the deprecation warning/error, I get the following errors instead:

# github.com/norisatir/go-gtk3/gobject
gobject.go: In function ‘_cgo_37d2f2f5c597_Cfunc_g_type_init’:
gobject.go:274:2: warning: ‘g_type_init’ is deprecated (declared at /usr/include/glib-2.0/gobject/gtype.h:669) [-Wdeprecated-declarations]
 }
  ^
# github.com/norisatir/go-gtk3/gobject
In file included from /usr/lib/glib-2.0/include/glibconfig.h:9:0,
                 from /usr/include/glib-2.0/glib/gtypes.h:34,
                 from /usr/include/glib-2.0/glib/galloca.h:34,
                 from /usr/include/glib-2.0/glib.h:32,
                 from ./go-gobject.h:6,
                 from ./go-gobject.c:1:
./go-gobject.c: In function ‘_g_clear_object’:
/usr/include/glib-2.0/glib/gmacros.h:181:53: error: size of array ‘_GStaticAssertCompileTimeAssertion_0’ is negative
 #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED
                                                     ^
/usr/include/glib-2.0/glib/gmacros.h:178:47: note: in definition of macro ‘G_PASTE_ARGS’
 #define G_PASTE_ARGS(identifier1,identifier2) identifier1 ## identifier2
                                               ^
/usr/include/glib-2.0/glib/gmacros.h:181:44: note: in expansion of macro ‘G_PASTE’
 #define G_STATIC_ASSERT(expr) typedef char G_PASTE (_GStaticAssertCompileTimeAssertion_, __COUNTER__)[(expr) ? 1 : -1] G_GNUC_UNUSED
                                            ^
/usr/include/glib-2.0/glib/gmem.h:115:5: note: in expansion of macro ‘G_STATIC_ASSERT’
     G_STATIC_ASSERT (sizeof *(pp) == sizeof (gpointer));                       \
     ^
/usr/include/glib-2.0/gobject/gobject.h:650:36: note: in expansion of macro ‘g_clear_pointer’
 #define g_clear_object(object_ptr) g_clear_pointer ((object_ptr), g_object_unref)
                                    ^
./go-gobject.c:23:2: note: in expansion of macro ‘g_clear_object’
  g_clear_object(o);
  ^
./go-gobject.c:23:2: error: cannot convert to a pointer type

I'm currently on 32-bit Arch Linux with gtk 3.10.2, go 1.1.2 and gcc 4.8.2.

Thanks for looking into this.

Best regards, Alexander Rødseth

gdk3.go: In function '_gdk_threads_init': gdk3.go:7:2: error: 'gdk_threads_init' is deprecated (declared at /usr/include/gtk-3.0/gdk/gdkthreads.h:43) [-Werror=deprecated-declarations] gdk3.go: At top level: gdk3.go:37:1: error: 'gdk_threads_leave' is deprecated (declared at /usr/include/gtk-3.0/gdk/gdkthreads.h:47) [-Werror=deprecated-declarations] gdk3.go:69:1: error: 'gdk_threads_enter' is deprecated (declared at /usr/include/gtk-3.0/gdk/gdkthreads.h:45) [-Werror=deprecated-declarations] cc1: all warnings being treated as errors

# github.com/norisatir/go-gtk3/gtk3
gtk3.go:1341:1: error: 'gtk_widget_get_pointer' is deprecated (declared at /usr/include/gtk-3.0/gtk/gtkwidget.h:747): Use 'gdk_window_get_device_position' instead [-Werror=deprecated-declarations]
cc1: all warnings being treated as errors

I get this error with libgtk-3-dev 3.4.0-0ubuntu3~oneiric1.

Replacing line 1066: C.gtk_widget_get_pointer(self.object, &cx, &cy)

with: C.gdk_window_get_device_position(C.gtk_widget_get_window(self.object), C.gtk_get_current_event_device(), &cx, &cy, nil)

seems to solve the issue.