* move emacs/ code to toys/mua; rename mu=>mua, many updates

toys/mua/Makefile

@@ -0,0 +1,31 @@
+VERSION=$(shell git describe --tags --dirty)
+EMACS=emacs
+PREFIX=/usr/local
+ELS=mu.el mu-common.el mu-view.el mu-headers.el
+ELCS=$(ELS:.el=.elc)
+
+.PHONY=install
+
+BATCH=$(EMACS) -batch -q -no-site-file -eval \
+  "(setq load-path (cons (expand-file-name \".\") load-path))"
+
+%.elc: %.el
+	$(BATCH) --eval '(byte-compile-file "$<")'
+
+all: $(ELCS)
+
+docs: mu.infogg
+
+install_lisp:
+	mkdir -p $(DESTDIR)/$(PREFIX)/share/emacs/site-lisp
+	install -m 644 $(ELS) $(ELCS) $(DESTDIR)/$(PREFIX)/share/emacs/site-lisp
+
+install_docs: docs
+	mkdir -p $(DESTDIR)/$(PREFIX)/share/info
+	install -m 644 mu.info $(DESTDIR)/$(PREFIX)/share/info
+	install-info --info-dir=$(DESTDIR)/$(PREFIX)/share/info $(DESTDIR)/$(PREFIX)/share/info/mu.info
+
+install: install_lisp install_docs
+
+clean:
+	rm -fr mu.info $(ELCS)