change OS to HOST_OS

SVN-Revision: 5030

openwrt/tools/mtd-utils/Makefile

@@ -19,7 +19,7 @@ PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION).orig
 include $(INCLUDE_DIR)/host-build.mk
 
 CFLAGS := $(HOSTCFLAGS) -O2 -I../include
-ifneq ($(OS),Linux)
+ifneq ($(HOST_OS),Linux)
 CFLAGS += -Dloff_t=off_t -D__BYTE_ORDER=BYTE_ORDER -I$(STAGING_DIR)/include-host -include getline.h -include endian.h
 endif
 

openwrt/tools/sstrip/Makefile

@@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/host-build.mk
 PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/sstrip
 
 OS:=$(shell uname)
-ifeq ($(OS),Darwin)
+ifeq ($(HOST_OS),Darwin)
   CFLAGS += -I./include
 endif