From: Lubomir Rintel <lkundrak@v3.sk>

Hot fix for #532325 [1]
Not upstreamable since it defeats the icon's theming.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=532325

Index: src/main.cpp
===================================================================
--- src/main.cpp	(revision 22548)
+++ src/main.cpp	(working copy)
@@ -924,8 +924,7 @@
     gdk_event_handler_set((GdkEventFunc)snooper, NULL, NULL);
     Inkscape::Debug::log_display_config();
 
-    // Set default window icon. Obeys the theme.
-    gtk_window_set_default_icon_name("inkscape");
+    gtk_window_set_default_icon_from_file("/usr/share/pixmaps/inkscape.png", NULL);
     // Do things that were previously in inkscape_gtk_stock_init().
     sp_icon_get_phys_size(GTK_ICON_SIZE_MENU);
     Inkscape::UI::Widget::Panel::prep();