sdgui: fix popup menu alignment

On Windows 10 GTK+ completely failed to turn it around
so that it would be visible.

CMakeLists.txt

@@ -244,8 +244,7 @@ elseif (WITH_GUI)
 	install (DIRECTORY
 		${WIN32_DEPENDS_PATH}/bin/
 		DESTINATION .
-		FILES_MATCHING PATTERN "*.dll"
+		FILES_MATCHING PATTERN "*.dll")
-		PATTERN "libgettext*" EXCLUDE)
 	install (DIRECTORY
 		${WIN32_DEPENDS_PATH}/etc/
 		DESTINATION etc)
@@ -263,6 +262,8 @@ elseif (WITH_GUI)
 	install (FILES
 		${WIN32_DEPENDS_PATH}/share/icons/hicolor/index.theme
 		DESTINATION share/icons/hicolor)
+
+	install (SCRIPT cmake/Win32Cleanup.cmake)
 endif ()
 
 # Do some unit tests

cmake/Win32Cleanup.cmake

@@ -0,0 +1,37 @@
+# To be run from cmake_install.cmake, eradicates all unreferenced libraries.
+# CMake 3.9.6 has a parsing bug with ENCODING UTF-8.
+cmake_minimum_required (VERSION 3.10)
+
+# CPack runs this almost without any CMake variables at all
+# (cmStateSnapshot::SetDefaultDefinitions(), CMAKE_INSTALL_PREFIX, [DESTDIR])
+set (installdir "${CMAKE_INSTALL_PREFIX}")
+if (NOT installdir OR installdir MATCHES "^/usr(/|$)")
+	return ()
+endif ()
+
+# The function is recursive and CMake has tragic scoping behaviour;
+# environment variables are truly global there, in the absence of a cache
+unset (ENV{seen})
+function (expand path)
+	set (seen $ENV{seen})
+	if (path IN_LIST seen OR NOT EXISTS "${path}")
+		return ()
+	endif ()
+
+	set (ENV{seen} "$ENV{seen};${path}")
+	file (STRINGS "${path}" strings REGEX "[.][Dd][Ll][Ll]$" ENCODING UTF-8)
+	foreach (string ${strings})
+		string (REGEX MATCH "[-.+_a-zA-Z0-9]+$" word "${string}")
+		expand ("${installdir}/${word}")
+	endforeach ()
+endfunction ()
+
+file (GLOB roots LIST_DIRECTORIES false "${installdir}/*.[Ee][Xx][Ee]"
+	"${installdir}/lib/gdk-pixbuf-2.0/2.10.0/loaders/*.[Dd][Ll][Ll]")
+foreach (binary ${roots})
+	expand ("${binary}")
+endforeach ()
+
+file (GLOB libraries LIST_DIRECTORIES false "${installdir}/*.[Dd][Ll][Ll]")
+list (REMOVE_ITEM libraries $ENV{seen})
+file (REMOVE ${libraries})

src/sdgui.c

@@ -407,6 +407,7 @@ main (int argc, char *argv[])
 		G_CALLBACK (on_selection_watch_toggle), NULL);
 
 	GtkWidget *menu = gtk_menu_new ();
+	gtk_widget_set_halign (menu, GTK_ALIGN_END);
 	gtk_menu_shell_append (GTK_MENU_SHELL (menu), item_open);
 #ifndef WIN32
 	gtk_menu_shell_append (GTK_MENU_SHELL (menu), item_selection);
@@ -414,10 +415,10 @@ main (int argc, char *argv[])
 	gtk_widget_show_all (menu);
 
 	g.hamburger = gtk_menu_button_new ();
-	gtk_menu_button_set_direction
-		(GTK_MENU_BUTTON (g.hamburger), GTK_ARROW_NONE);
-	gtk_menu_button_set_popup (GTK_MENU_BUTTON (g.hamburger), menu);
 	gtk_button_set_relief (GTK_BUTTON (g.hamburger), GTK_RELIEF_NONE);
+	gtk_button_set_image (GTK_BUTTON (g.hamburger), gtk_image_new_from_icon_name
+		("open-menu-symbolic", GTK_ICON_SIZE_BUTTON));
+	gtk_menu_button_set_popup (GTK_MENU_BUTTON (g.hamburger), menu);
 	gtk_widget_show (g.hamburger);
 
 	g.notebook = gtk_notebook_new ();