Berry failed port attempt leftovers :(

make/user.mk

@@ -4,16 +4,19 @@ o :=
 c :=
 ldflags += -L ../libsystem/build -l:libsystem.a -L ../liballoc/build -l:liballoc.a
 cflags += -isystem ../libsystem -isystem ../liballoc
+extra_deps +=
 
 include src.mk
 include app.mk
 include ../generic/flags.mk
 include ../$(platform)/flags.mk
 
+FORMAT ?= clang-format -i $$(git ls-files '*.c' '*.h')
+
 all: $(app)
 
-$(app): $(o)
-	$(ld) -o $@ $(ldflags) -T ../$(platform)/link.ld $^
+$(app): $(extra_deps) $(o)
+	$(ld) -o $@ $(ldflags) -T ../$(platform)/link.ld $(o)
 
 %.o: %.c
 	$(cc) -c -o $@ $(cflags) $<
@@ -25,6 +28,6 @@ clean:
 	rm -f $(o) $(app)
 
 format:
-	clang-format -i $$(git ls-files '*.c' '*.h')
+	$(FORMAT)
 
 .PHONY: all clean format