From c88b63d433e75fcde145430636ba30f9654d9e1d Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@armlinux.org.uk>
Date: Fri, 10 Apr 2020 16:48:59 +0100
Subject: Makefile: rework makefile

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 Makefile | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/Makefile b/Makefile
index 3a7be80..8f1600a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,17 +1,19 @@
-CFLAGS= -O -Wall
+CFLAGS_COMMON=-Wall -Wstrict-prototypes
+CFLAGS=-O2 $(CFLAGS_COMMON)
+CFLAGS_UDEB=-Os $(CFLAGS_COMMON)
 CC=gcc
 INSTALL=install
 
-LIBS=libmii.o
-
 all: mii-diag mii-diag-udeb
 
-mii-diag:
-	$(CC) $(CFLAGS) -Wstrict-prototypes -O mii-diag.c -DLIBMII \
-				libmii.c -o mii-diag
+mii-diag.o: mii-diag.c
+	$(CC) $(CFLAGS) -DLIBMII -o $@ -c $<
+
+mii-diag: mii-diag.o libmii.o
+	$(CC) -o $@ $^
 
 mii-diag-udeb:
-	$(CC) -Os -Wstrict-prototypes -O mii-diag.c -o $@
+	$(CC) $(CFLAGS_UDEB) mii-diag.c -o $@
 
 clean:
 	rm -f *.o mii-diag mii-diag-udeb *~
-- 
cgit