diff and patch howto

diff -urN a a.new > a.patch

patch -p1 < a.patch
-pN N 指的是忽略 patch file 前面 N 層目錄


--- AppLibs/broadcom/trellis/Makefile 2012-12-04 18:01:55.209672926 +0800
+++ AppLibs/broadcom/trellis/Makefile.new 2012-12-04 18:19:50.949746930 +0800
@@ -73,6 +73,8 @@
TRELLIS_HAS_AIR ?= y
endif
+TRELLIS_HAS_DFB_EXAMPLE ?= y
+
#Miracast Streamer
ifeq ($(wildcard $(TARGET_DIR)/lib/libwfd_streamer.a),)
TRELLIS_HAS_WFD_STREAMER = n