Makefile: added simple makefile for installation

Makefile

@@ -0,0 +1,37 @@
+PN        = btrbk
+VERSION   = 0.10
+
+PREFIX   ?= /usr
+CONFDIR   = /etc
+CRONDIR   = /etc/cron.daily
+BINDIR    = $(PREFIX)/sbin
+DOCDIR    = $(PREFIX)/share/doc/$(PN)-$(VERSION)
+SCRIPTDIR = $(PREFIX)/share/$(PN)/scripts
+MAN1DIR   = $(PREFIX)/share/man/man1
+MAN5DIR   = $(PREFIX)/share/man/man5
+
+all:
+	@echo 'nothing to do for "all"'
+
+install-bin:
+	@echo 'installing main script and config...'
+	install -Dm644 btrbk.conf.example "$(DESTDIR)$(CONFDIR)/btrbk/btrbk.conf.example"
+	install -Dm755 $(PN) "$(DESTDIR)$(BINDIR)/$(PN)"
+
+install-share:
+	@echo 'installing auxiliary scripts...'
+	install -Dm644 ssh_filter_btrbk.sh "$(DESTDIR)$(SCRIPTDIR)/ssh_filter_btrbk.sh"
+
+install-man:
+	@echo 'installing manpages...'
+	install -Dm644 doc/btrbk.1 "$(DESTDIR)$(MAN1DIR)/btrbk.1"
+	install -Dm644 doc/btrbk.conf.5 "$(DESTDIR)$(MAN5DIR)/btrbk.conf.5"
+	gzip -9 "$(DESTDIR)$(MAN1DIR)/btrbk.1"
+	gzip -9 "$(DESTDIR)$(MAN5DIR)/btrbk.conf.5"
+
+install-doc:
+	@echo 'installing documentation...'
+	install -Dm644 README.md "$(DESTDIR)$(DOCDIR)/README.md"
+	gzip -9 "$(DESTDIR)$(DOCDIR)/README.md"
+
+install: install-bin install-share install-man install-doc