Add Emacs build targets to top-level Makefile

GNUmakefile

@@ -1,6 +1,6 @@
 include dotfiles.mk
 
-MODULES=xmodmap
+MODULES=xmodmap emacs
 
 .PHONY: all clean $(MODULES) zsh
 
@@ -12,6 +12,19 @@ stow: $(addsuffix -stow,$(MODULES))
 zsh:
 	$(MAKE) -C $@
 
+#########
+# Emacs #
+#########
+
+emacs:
+	$(MAKE) -C emacs/.emacs.d
+
+emacs-clean:
+	$(MAKE) -C emacs/.emacs.d clean
+
+emacs-stow:
+	stow/ust/bin/stow-home emacs
+
 ###########
 # Xmodmap #
 ###########