Simplify makefiles by removing special cases

Makefile

@@ -6,7 +6,7 @@ export AR
 export EXE
 export CFLAGS
 export LDFLAGS
-export LDLIBS
+export LDLIBS_EXTRA
 export CONFIG_HOST_OS
 
 -include config.mak
@@ -98,8 +98,6 @@ N2N_OBJS=\
 	src/tuntap_osx.o \
 	src/wire.o \
 
-N2N_DEPS=$(wildcard include/*.h) $(wildcard src/*.c) config.mak
-
 # As source files pass the linter, they can be added here (If all the source
 # is passing the linter tests, this can be refactored)
 LINT_CCODE=\
@@ -112,9 +110,6 @@ LINT_CCODE=\
 # TODO: change either the files or the linter to remove these failures
 LINT_EXCLUDE=include/uthash.h|include/lzodefs.h|src/minilzo.c
 
-LDLIBS+=-ln3n
-LDLIBS+=$(LDLIBS_EXTRA)
-
 DOCS=edge.8.gz supernode.1.gz n3n.7.gz
 
 # This is the list of Debian/Ubuntu packages that are needed during the build.
@@ -249,12 +244,11 @@ distclean:
 	rm -f packages/rpm/config.log packages/rpm/config.status
 
 .PHONY: install
-install: apps/edge$(EXE) apps/supernode$(EXE) edge.8.gz supernode.1.gz n3n.7.gz
+install: apps tools edge.8.gz supernode.1.gz n3n.7.gz
 	echo "MANDIR=$(MANDIR)"
 	$(MKDIR) $(SBINDIR) $(MAN1DIR) $(MAN7DIR) $(MAN8DIR)
-	$(INSTALL_PROG) apps/supernode$(EXE) $(SBINDIR)/
-	$(INSTALL_PROG) apps/edge$(EXE) $(SBINDIR)/
+	$(MAKE) -C apps install SBINDIR=$(abspath $(SBINDIR))
+	$(MAKE) -C tools install SBINDIR=$(abspath $(SBINDIR))
 	$(INSTALL_DOC) edge.8.gz $(MAN8DIR)/
 	$(INSTALL_DOC) supernode.1.gz $(MAN1DIR)/
 	$(INSTALL_DOC) n3n.7.gz $(MAN7DIR)/
-	$(MAKE) -C tools install SBINDIR=$(abspath $(SBINDIR))

apps/Makefile

@@ -19,10 +19,17 @@ EXAMPLES+=example_edge_embed_quick_edge_init
 EXAMPLES+=example_edge_embed
 EXAMPLES+=example_sn_embed
 
-all: $(APPS) $(EXAMPLES)
-
 CFLAGS+=-I$(INCDIR)
 LDFLAGS+=-L$(LIBDIR)
+LDLIBS+=-ln3n
+LDLIBS+=$(LDLIBS_EXTRA)
+
+all: $(APPS) $(EXAMPLES)
+
+.PHONY: install
+install: $(addsuffix $(EXE),$APPS)
+	$(INSTALL_PROG) supernode$(EXE) $(SBINDIR)/
+	$(INSTALL_PROG) edge$(EXE) $(SBINDIR)/
 
 clean:
 	rm -f $(APPS) $(EXAMPLES)

tools/Makefile

@@ -4,51 +4,29 @@
 
 DEBUG?=-g3
 
-HEADERS=$(wildcard include/*.h)
-CFLAGS+=-I../include
-
 CFLAGS+=$(DEBUG)
-LDFLAGS+=-L..
-
-N2N_LIB=../libn3n.a
 
-TOOLS+=n3n-benchmark$(EXE)
-TOOLS+=n3n-keygen$(EXE)
-TOOLS+=n3n-route$(EXE)
-TOOLS+=n3n-portfwd$(EXE)
-TOOLS+=n3n-decode$(EXE)
-
-TESTS=tests-compress$(EXE)
-TESTS+=tests-elliptic$(EXE)
-TESTS+=tests-hashing$(EXE)
-TESTS+=tests-transform$(EXE)
-TESTS+=tests-wire$(EXE)
-TESTS+=tests-auth$(EXE)
+CFLAGS+=-I../include
+LDFLAGS+=-L..
+LDLIBS+=-ln3n
+LDLIBS+=$(LDLIBS_EXTRA)
+
+TOOLS+=n3n-benchmark
+TOOLS+=n3n-keygen
+TOOLS+=n3n-route
+TOOLS+=n3n-portfwd
+TOOLS+=n3n-decode
+
+TESTS=tests-compress
+TESTS+=tests-elliptic
+TESTS+=tests-hashing
+TESTS+=tests-transform
+TESTS+=tests-wire
+TESTS+=tests-auth
 
 .PHONY: all clean install
 all: $(TOOLS) $(TESTS)
 
-n3n-benchmark.o: $(N2N_LIB) $(HEADERS) ../config.mak
-n3n-keygen.o: $(N2N_LIB) $(HEADERS) ../config.mak
-n3n-route.o: $(N2N_LIB) $(HEADERS) ../config.mak
-n3n-portfwd.o: $(N2N_LIB) $(HEADERS) ../config.mak
-n3n-decode.o: $(N2N_LIB) $(HEADERS) ../config.mak
-
-ifneq (,$(findstring mingw,$(CONFIG_HOST_OS)))
-# HACK for windows.
-n3n-benchmark.exe: n3n-benchmark
-n3n-keygen.exe: n3n-keygen
-n3n-route.exe: n3n-route
-n3n-portfwd.exe: n3n-portfwd
-n3n-decode.exe: n3n-decode
-tests-compress.exe: tests-compress
-tests-elliptic.exe: tests-elliptic
-tests-hashing.exe: tests-hashing
-tests-transform.exe: tests-transform
-tests-wire.exe: tests-wire
-tests-auth.exe: tests-auth
-endif
-
 # See comments in the topdir Makefile about how to generate coverage
 # data.
 gcov:
@@ -59,4 +37,4 @@ clean:
 	rm -f $(TESTS) *.gcno *.gcda
 
 install: $(TOOLS)
-	$(INSTALL_PROG) $(TOOLS) $(SBINDIR)/
+	$(INSTALL_PROG) $(addsuffix $(EXE),$(TOOLS)) $(SBINDIR)/