Not sure what is going on, git is too complicated

makefile

@@ -3,6 +3,7 @@
 #--------------------------------
 OBJ=obj
 SRC=.
+CPPFLAGS:=$(shell dpkg-buildflags --get CPPFLAGS)
 CFLAGS:=$(shell dpkg-buildflags --get CFLAGS)
 LDFLAGS:=$(shell dpkg-buildflags --get LDFLAGS)
 
@@ -15,7 +16,7 @@ objs = $(OBJ)/jhead.o $(OBJ)/jpgfile.o $(OBJ)/jpgqguess.o $(OBJ)/paths.o \
 	$(OBJ)/exif.o $(OBJ)/iptc.o $(OBJ)/gpsinfo.o $(OBJ)/makernote.o 
 
 $(OBJ)/%.o:$(SRC)/%.c objdir
-	${CC} $(CFLAGS) -c $< -o $@
+	${CC} $(CFLAGS) $(CPPFLAGS) -c $< -o $@
 
 jhead: $(objs) jhead.h
 	${CC} $(LDFLAGS) -o jhead $(objs) -lm