build: Add and document install target

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

2 files changed, 34 insertions, 4 deletions

diff --git a/Makefile b/Makefile
index 120bc58..a94ea25 100644
--- a/Makefile
+++ b/Makefile
@@ -7,28 +7,41 @@ OBJS	= llmnr.o iface.o socket.o util.o main.o
 LIBS	= -lpthread
 
 CC	= $(CROSS_COMPILE)gcc
+INSTALL	= install
 
 CFLAGS	?= -W -Wall -O2
 LDFLAGS	?=
 
-CCQ	= @echo -e "  CC\t$<" && $(CC)
-LDQ	= @echo -e "  LD\t$@" && $(CC)
-
 ifeq ($(DEBUG), 1)
   CFLAGS += -g -DDEBUG
 endif
 
+CCQ	= @echo "  CC $<" && $(CC)
+LDQ	= @echo "  LD $@" && $(CC)
+
+prefix	?= /usr/local
+
+BINDIR	= $(prefix)/bin
+DESTDIR	=
+
 all: $(P)
 
 $(P): $(OBJS)
 	$(LDQ) $(LDFLAGS) -o $@ $(OBJS) $(LIBS)
 
+install_$(P): $(P)
+	@echo "  INSTALL $(P)"
+	@$(INSTALL) -d -m 755 $(DESTDIR)$(BINDIR)
+	@$(INSTALL) -m 755 $(P) $(BINDIR)/$(P)
+
 %.o: %.c %.h
 	$(CCQ) $(CFLAGS) -o $@ -c $<
 
 %.o: %.c
 	$(CCQ) $(CFLAGS) -o $@ -c $<
 
+install: install_$(P)
+
 clean:
-	@echo -e "  CLEAN"
+	@echo "  CLEAN"
 	@rm -f $(OBJS) $(P)
diff --git a/README b/README
index 8415143..f60a984 100644
--- a/README
+++ b/README
@@ -5,6 +5,23 @@ llmnrd is a daemon implementing the Link-Local Multicast Name Resolution (LLMNR)
 protocol according to RFC 4795. It currently only supports Linux, as it uses the
 netlink kernel interface.
 
+Installation
+------------
+
+To build and install llmnrd use the following commands:
+
+$ make
+$ sudo make install
+
+By default, the llmnrd binary will be installed to /usr/local/sbin. To install
+the binary to a different installation path, use:
+
+$ make
+$ sudo make prefix=<path> install
+
+License
+-------
+
 llmnrd is free software: you can redistribute it and/or modify it under the
 terms of the GNU General Public License as published by the Free Software
 Foundation, version 2 of the License.