shit! I should always write "git commit -a", WTF!!!

Makefile

@@ -1,40 +1,34 @@
-PROGRAM = sbig340
-LDFLAGS =
-#-fdata-sections -ffunction-sections -Wl,--gc-sections
-SRCS = $(wildcard *.c)
-DEFINES = $(DEF) -D_XOPEN_SOURCE=1111 -DEBUG
-OBJDIR = mk
-CFLAGS = -Wall -Werror -Wextra -Wno-trampolines -std=gnu99
-OBJS = $(addprefix $(OBJDIR)/, $(SRCS:%.c=%.o))
-DEPS = $(addprefix $(OBJDIR)/, $(SRCS:%.c=%.d))
+# run `make DEF=...` to add extra defines
+PROGRAM := sbig340
+LDFLAGS := -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,--discard-all
+SRCS := $(wildcard *.c)
+DEFINES := $(DEF) -D_XOPEN_SOURCE=1111 -DEBUG
+OBJDIR := mk
+CFLAGS += -O2 -Wall -Werror -Wextra -Wno-trampolines -std=gnu99
+OBJS := $(addprefix $(OBJDIR)/, $(SRCS:%.c=%.o))
+DEPS := $(OBJS:.o=.d)
 CC = gcc
 
-all : $(PROGRAM)
+all : $(OBJDIR) $(PROGRAM)
 
 $(PROGRAM) : $(OBJS)
 	@echo -e "\t\tLD $(PROGRAM)"
-	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJS) -o $(PROGRAM)
+	$(CC) $(LDFLAGS) $(OBJS) -o $(PROGRAM)
 
 $(OBJDIR):
 	mkdir $(OBJDIR)
 
-$(OBJS): $(OBJDIR) $(DEPS)
-
-$(OBJDIR)/%.d: %.c $(OBJDIR)
-	$(CC) -MM -MG $< | sed -e 's,^\([^:]*\)\.o[ ]*:,$(@D)/\1.o $(@D)/\1.d:,' >$@
-
 ifneq ($(MAKECMDGOALS),clean)
 -include $(DEPS)
 endif
 
 $(OBJDIR)/%.o: %.c
 	@echo -e "\t\tCC $<"
-	$(CC) -c $(CFLAGS) $(DEFINES) -o $@ $<
+	$(CC) -MD -c $(LDFLAGS) $(CFLAGS) $(DEFINES) -o $@ $<
 
 clean:
 	@echo -e "\t\tCLEAN"
-	@rm -f $(OBJS)
-	@rm -f $(DEPS)
+	@rm -f $(OBJS) $(DEPS)
 	@rmdir $(OBJDIR) 2>/dev/null || true
 
 xclean: clean
@@ -44,4 +38,3 @@ gentags:
 	CFLAGS="$(CFLAGS) $(DEFINES)" geany -g $(PROGRAM).c.tags *[hc] 2>/dev/null
 
 .PHONY: gentags clean xclean
-