I'm trying to create a patched build of gtk, which fixes an annoying bug with wacom&xinerama.
I've created a .deb file (unsigned), and want to install that. But then this is what I get: Breaks existing package gtk2-engines-pixbuf
Here are the steps I followed: Installed scripts and compiler that are needed
sudo apt-get install build-essential devscripts
installed dependencies for gtk package
sudo apt-get build-dep gtk+2.0
made a directory for sources, and downloaded the source of the gtk package
cd ~/src
sudo apt-get source gtk+2.0
applied a change in the lines of the patch. for me it was replacing the lines
x_scale = gdk_screen_get_width (gdk_drawable_get_screen (window)) / device_width;
y_scale = gdk_screen_get_height (gdk_drawable_get_screen (window)) / device_height;
x_offset = - impl_window->input_window->root_x - priv->abs_x;
y_offset = - impl_window->input_window->root_y - priv->abs_y;
by these lines:
int core_pointer_x, core_pointer_y, cur_monitor;
GdkRectangle mon_geometry;
GdkScreen *cur_screen;
gdk_display_get_pointer(gdk_drawable_get_display(window),
&cur_screen,&core_pointer_x,&core_pointer_y,0);
cur_monitor= gdk_screen_get_monitor_at_point(cur_screen,
core_pointer_x,
core_pointer_y);
gdk_screen_get_monitor_geometry(cur_screen,cur_monitor,&mon_geometry);
x_scale = mon_geometry.width / device_width;
y_scale = mon_geometry.height / device_height;
x_offset = mon_geometry.x - impl_window->input_window->root_x;
y_offset = mon_geometry.y - impl_window->input_window->root_y;
Committed the changes to the package and added a message describing the change to the changelog of the package
sudo dpkg-source --commit
sudo debuild -i -us -uc -b
Finally double-clicked the libgtk2.0-0_2.24.10-0ubuntu7_amd64.deb file to install it. THat gave the error message (see image)