Extend man Makefile

man/Makefile

@@ -1,4 +1,6 @@
 A2X = a2x
+MKDIR = mkdir
+GZIP = gzip
 
 MANPAGESRC = signal-cli.1 signal-cli-dbus.5 signal-cli-jsonrpc.5
 
@@ -8,3 +10,13 @@ all: $(MANPAGESRC)
 %: %.adoc
 	@echo "Generating manpage for $@"
 	$(A2X) --no-xmllint --doctype manpage --format manpage "$^"
+
+.PHONY: install
+install: all
+	$(MKDIR) -p man1 man5
+	for f in *.1; do $(GZIP) < "$$f" > man1/"$$f".gz ; done
+	for f in *.5; do $(GZIP) < "$$f" > man5/"$$f".gz ; done
+
+.PHONY: clean
+clean:
+	rm -rf *.1 *.5 man1 man5