simplify Makefile using macros

Makefile

@@ -5,22 +5,27 @@ include config.mk
 # === BUILD ENVIRONMENT ===
 BIN := bin
 BUILD := build
-LIB := lib
 
-# Macro definitions
-define mkbin
-$(addprefix $(BIN)/,$1)
+LIB := lib
+CLI := cli
+
+# === MACRO DEFINITIONS ===
+define objpath
+$(addprefix $(BUILD)/,
+	$(addsuffix .o,
+		$(basename $(1))))
 endef
-define mkbuild
-$(addprefix $(BUILD)/,$1)
-endef
-define mklib
-$(addprefix $(LIB)/,$1)
+define mkobj
+$(foreach DEP, $?,
+	mkdir -p $(dir $(call objpath, $(DEP)))
+	$(CC) $(CFLAGS) -o $(call objpath, $(DEP)) -c $(DEP))
+
+$(LD) -r $(LDFLAGS) -o $@ $(call objpath, $?)
 endef
 
 # === BUILD TARGETS ===
-all: $(BUILD) $(BIN) $(call mkbin,pw-test graph sine shfx cli)
-$(BIN)/pw-test: $(call mklib, main.c)
+all: $(BUILD) $(BIN) $(addprefix $(BIN)/,pw-test shfx dorne)
+$(BIN)/pw-test: $(addprefix $(LIB)/, main.c)
 	$(CC) $(CFLAGS) -o $(BUILD)/pw-test.o -c $^
 	$(CLD) $(CLDFLAGS) -o $@ $(BUILD)/pw-test.o
 	
@@ -28,16 +33,18 @@ $(BIN)/shfx: shfx/main.c
 	$(CC) $(CFLAGS) -o $(BUILD)/shfx.o -c $^
 	$(CLD) $(CLDFLAGS) -lncurses -o $@ $(BUILD)/shfx.o
 
-$(BIN)/cli: cli/main.c cli/mkpty.c
-	$(CLD) $(CLDFLAGS) -o $@ $(BUILD)/cli.o
+$(BIN)/dorne: $(addprefix $(BUILD)/,dorne.o epty.o)
+	$(CLD) $(CLDFLAGS) -o $@ $^
 	
 $(BUILD) $(BIN):
 	mkdir -p $@
 
-$1/%.o: $1/%.c
-	$(foreach dep, $^,
-		$(CC) $(CFLAGS) -o "$(BUILD)/$(basename $(notdir dep)).o" -c $(dep))
-	$(LD) $(LDFLAGS) -o $@ $(addsuffix .o,$(basename $^))
+$(BUILD)/dorne.o: $(addprefix $(CLI)/, main.c)
+	$(mkobj)
+$(BUILD)/epty.o: $(addprefix $(CLI)/, epty.c _pty.c)
+	$(mkobj)
+
+# $1/%.o: $1/%.c
 
 # === DEVELOPMENT TARGETS ===
 .PHONY: debug run test