[Spice-devel] [PATCH spice-gtk v2 3/4] Remove warning about unused variable when building on macOS

[Frediano Ziglio]

> On Thu, May 11, 2017 at 12:47:07PM +0200, Christophe de Dinechin wrote:
> > From: Christophe de Dinechin <dinechin at redhat.com>
> > 
> > On macOS, neither of the two cases implemented in set_mouse_accel applies.
> > We get the following eror message:
> > 
> >   CC       spice-widget.lo
> > spice-widget.c:944:26: error: unused variable 'd'
> > [-Werror,-Wunused-variable]
> >     SpiceDisplayPrivate *d = display->priv;
> 
> This is a warning triggering an error because of -Werror. In a way it's
> a good warning, because it's pointing out an area which needs work when
> porting spice-gtk to osx. Removing the warning without providing a
> working implementation is a bit suboptimal imo.
> 
> Christophe
> 

Can this feature be implemented in Mac OS X?
Maybe a TODO comment may help?

Frediano

> > 
> > Signed-off-by: Christophe de Dinechin <dinechin at redhat.com>
> > ---
> >  src/spice-widget.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/src/spice-widget.c b/src/spice-widget.c
> > index 8203d55..5542e85 100644
> > --- a/src/spice-widget.c
> > +++ b/src/spice-widget.c
> > @@ -941,9 +941,8 @@ static void update_keyboard_grab(SpiceDisplay *display)
> >  
> >  static void set_mouse_accel(SpiceDisplay *display, gboolean enabled)
> >  {
> > -    SpiceDisplayPrivate *d = display->priv;
> > -
> >  #if defined GDK_WINDOWING_X11
> > +    SpiceDisplayPrivate *d = display->priv;
> >      GdkWindow *w = GDK_WINDOW(gtk_widget_get_window(GTK_WIDGET(display)));
> >  
> >      if (!GDK_IS_X11_DISPLAY(gdk_window_get_display(w))) {
> > @@ -965,6 +964,7 @@ static void set_mouse_accel(SpiceDisplay *display,
> > gboolean enabled)
> >                        d->x11_accel_numerator, d->x11_accel_denominator,
> >                        d->x11_threshold);
> >      }
> >  #elif defined GDK_WINDOWING_WIN32
> > +    SpiceDisplayPrivate *d = display->priv;
> >      if (enabled) {
> >          g_return_if_fail(SystemParametersInfo(SPI_SETMOUSE, 0,
> >          &d->win_mouse, 0));
> >          g_return_if_fail(SystemParametersInfo(SPI_SETMOUSESPEED, 0,
> >          (PVOID)(INT_PTR)d->win_mouse_speed, 0));