From afe64ff4fef9c376f04d5d4eccff273a8f9c3b3e Mon Sep 17 00:00:00 2001
From: Rutherther <rutherther@ditigal.xyz>
Date: Wed, 23 Oct 2024 20:23:33 +0200
Subject: [PATCH] fix: Makefile correct dynamic header dependencies

---
 Makefile | 38 +++++++++++++++++---------------------
 1 file changed, 17 insertions(+), 21 deletions(-)

diff --git a/Makefile b/Makefile
index 2d9064a..69b8fef 100644
--- a/Makefile
+++ b/Makefile
@@ -8,6 +8,7 @@ BINDIR=bin
 SRCDIR=src
 INCDIR=include
 OBJDIR=obj
+DEPDIR=$(OBJDIR)/.deps
 
 DEVICEDIR=devices/$(DEVICE)
 GENERALDIR=devices/general
@@ -17,8 +18,10 @@ GENERALSRCS=$(wildcard $(GENERALDIR)/*.c)
 DEVICESRCS=$(wildcard $(DEVICEDIR)/*.c)
 
 SRCS=$(PROJSRCS) $(GENERALSRCS) $(DEVICESRCS)
-OBJS=$(patsubst %.c,obj/%.o,$(SRCS))
+OBJS=$(patsubst %.c,$(OBJDIR)/%.o,$(SRCS))
+DEPFILES=$(patsubst %.c,$(DEPDIR)/%.d,$(SRCS))
 
+DEPFLAGS = -MT $@ -MMD -MP -MF $(DEPDIR)/$*.d
 CFLAGS=-I$(INCDIR) \
 				-I$(DEVICEDIR)/$(INCDIR) \
 				-Ilibs/CMSIS_6/CMSIS/Core/Include \
@@ -31,21 +34,14 @@ CC=arm-none-eabi-gcc
 LD=arm-none-eabi-ld
 OPENOCD=openocd
 
-$(BINDIR)/$(APP): $(OBJS)
-	mkdir -p $(BINDIR)
-	$(CC) $^ -o $@ $(CFLAGS) $(LDFLAGS)
+$(BINDIR)/$(APP): $(OBJS) | $(BINDIR)
+	$(CC) $^ -o $@ $(CFLAGS) $(LDFLAGS) $(DEPFLAGS)
 
-$(OBJDIR)/src/%.o: $(SRCDIR)/%.c
-	mkdir -p "$(OBJDIR)/src"
-	$(CC) -c $< -o $@ $(CFLAGS)
-
-$(OBJDIR)/$(DEVICEDIR)/%.o: $(DEVICEDIR)/%.c
-	mkdir -p "$(OBJDIR)/$(DEVICEDIR)"
-	$(CC) -c $< -o $@ $(CFLAGS)
-
-$(OBJDIR)/$(GENERALDIR)/%.o: $(GENERALDIR)/%.c
-	mkdir -p "$(OBJDIR)/$(GENERALDIR)"
-	$(CC) -c $< -o $@ $(CFLAGS)
+%.o : %.c
+$(OBJDIR)/%.o: %.c | $(DEPDIR) $(OBJDIR)
+	mkdir -p "$(dir $@)"
+	mkdir -p $(dir $(DEPDIR)/$*.d)
+	$(CC) -c $< -o $@ $(CFLAGS) $(DEPFLAGS)
 
 .PHONY: openocd flash clean
 openocd:
@@ -55,11 +51,11 @@ flash: $(BINDIR)/$(APP)
 	$(OPENOCD) -f interface/stlink.cfg -f target/$(TARGET).cfg -c "program $(BINDIR)/$(APP) verify reset exit"
 
 clean:
-	rm -rf $(OBJDIR) $(BINDIR)
+	rm -rf $(OBJDIR) $(BINDIR) $(DEPDIR)
 
-depend: .depend
-.depend: $(SRCS)
-	rm -f "$@"
-	$(CC) $(CFLAGS) -MM $^ > "$@"
+$(BINDIR): ; mkdir -p $@
+$(OBJDIR): ; mkdir -p $@
+$(DEPDIR): ; mkdir -p $@
 
-include .depend
+$(DEPFILES):
+include $(wildcard $(DEPFILES))
-- 
2.48.1