add local overlay

dev-util/atom-shell/files/0001-fix-atom-shell-linking.patch

@@ -0,0 +1,15 @@
+diff --git a/atom.gyp b/atom.gyp
+index 9805db8..ab27cb7 100644
+--- a/atom.gyp
++++ b/atom.gyp
+@@ -587,10 +587,6 @@
+               '-rpath \$$ORIGIN',
+               # Make native module dynamic loading work.
+               '-rdynamic',
+-              '<!@(pkg-config --libs-only-L --libs-only-other dbus-1 x11 xrandr xext gconf-2.0)',
+-            ],
+-            'libraries': [
+-              '<!@(pkg-config --libs-only-l dbus-1 x11 xrandr xext gconf-2.0)',
+             ],
+           },
+           # Required settings of using breakpad.