diff --git a/openwrt/target/linux/Makefile b/openwrt/target/linux/Makefile
index 01286405b8..e9edba256e 100644
--- a/openwrt/target/linux/Makefile
+++ b/openwrt/target/linux/Makefile
@@ -51,12 +51,12 @@ $(BIN_DIR)/$(IB_NAME).tar.bz2:
 	rm -rf $(IB_DIR)
 	mkdir -p $(IB_DIR)/packages
 	mkdir -p $(IB_DIR)/scripts
-	cp -dpR ./imagebuilder/* $(IB_DIR)/
-	cp -dpR $(TOPDIR)/bin/packages/*.ipk $(IB_DIR)/packages/
+	cp -fpR ./imagebuilder/* $(IB_DIR)/
+	cp -fpR $(TOPDIR)/bin/packages/*.ipk $(IB_DIR)/packages/
 	cp $(TOPDIR)/scripts/ipkg $(IB_DIR)/scripts/
 	$(MAKE) install-ib
 	cp $(TOPDIR)/rules.mk $(IB_DIR)
-	cp -dpR ./image $(IB_DIR)/
+	cp -fpR ./image $(IB_DIR)/
 	cp $(TOPDIR)/.config $(IB_DIR)/
 	find $(IB_DIR) -name CVS | xargs rm -rf
 	(cd $(BUILD_DIR); tar c $(IB_NAME) | bzip2 -c > $(BIN_DIR)/$(IB_NAME).tar.bz2)
diff --git a/openwrt/target/linux/image/ar7/Makefile b/openwrt/target/linux/image/ar7/Makefile
index c6a9045b48..2d252f6874 100644
--- a/openwrt/target/linux/image/ar7/Makefile
+++ b/openwrt/target/linux/image/ar7/Makefile
@@ -94,7 +94,7 @@ endif
 install: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-kernel.bin $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).bin
 install-ib:
 	mkdir -p $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)
-	cp -dpR $(KDIR)/vmlinux.bin $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
+	cp -fpR $(KDIR)/vmlinux.bin $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
 	mkdir -p $(IB_DIR)/staging_dir_$(ARCH)
-	cp -dpR $(STAGING_DIR)/bin/addpattern $(IB_DIR)/staging_dir_$(ARCH)/bin/
+	cp -fpR $(STAGING_DIR)/bin/addpattern $(IB_DIR)/staging_dir_$(ARCH)/bin/
 	
diff --git a/openwrt/target/linux/image/brcm/Makefile b/openwrt/target/linux/image/brcm/Makefile
index 09f2d1429c..54963b671b 100644
--- a/openwrt/target/linux/image/brcm/Makefile
+++ b/openwrt/target/linux/image/brcm/Makefile
@@ -71,7 +71,7 @@ endif
 install: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(FS).trx
 install-ib:
 	mkdir -p $(IB_DIR)/staging_dir_$(ARCH)/bin
-	cp -dpR $(STAGING_DIR)/bin/addpattern $(STAGING_DIR)/bin/trx $(STAGING_DIR)/bin/motorola-bin $(IB_DIR)/staging_dir_$(ARCH)/bin
+	cp -fpR $(STAGING_DIR)/bin/addpattern $(STAGING_DIR)/bin/trx $(STAGING_DIR)/bin/motorola-bin $(IB_DIR)/staging_dir_$(ARCH)/bin
 	mkdir -p $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)
-	cp -dpR $(BUILD_DIR)/loader.gz $(IB_DIR)/build_$(ARCH)/
-	cp -dpR $(KDIR)/vmlinux.lzma $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
+	cp -fpR $(BUILD_DIR)/loader.gz $(IB_DIR)/build_$(ARCH)/
+	cp -fpR $(KDIR)/vmlinux.lzma $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
diff --git a/openwrt/target/linux/image/soekris/Makefile b/openwrt/target/linux/image/soekris/Makefile
index 9ab3a73883..37600c91db 100644
--- a/openwrt/target/linux/image/soekris/Makefile
+++ b/openwrt/target/linux/image/soekris/Makefile
@@ -33,4 +33,4 @@ compile:
 install: $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinuz
 install-ib:
 	mkdir -p $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)
-	cp -dpR $(KDIR)/bzImage $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
+	cp -fpR $(KDIR)/bzImage $(IB_DIR)/build_$(ARCH)/linux-$(KERNEL)-$(BOARD)/
diff --git a/openwrt/target/linux/linux-2.4/Makefile b/openwrt/target/linux/linux-2.4/Makefile
index a0d56bfaf2..9f95d721d0 100644
--- a/openwrt/target/linux/linux-2.4/Makefile
+++ b/openwrt/target/linux/linux-2.4/Makefile
@@ -142,7 +142,7 @@ $(eval $(call KMOD_template,VFAT,vfat,\
 	$(MODULES_DIR)/kernel/fs/vfat/vfat.o \
 	$(MODULES_DIR)/kernel/fs/fat/fat.o \
 ,CONFIG_VFAT_FS,,30,fat vfat))
-ifneq (${shell ls $(MODULES_DIR)/kernel/crypto/*.o},)
+ifneq ($(wildcard $(MODULES_DIR)/kernel/crypto/*.o),)
 CONFIG_CRYPTO:=m
 endif
 $(eval $(call KMOD_template,CRYPTO,crypto,\
@@ -166,7 +166,7 @@ $(eval $(call KMOD_template,TUN,tun,\
 $(eval $(call KMOD_template,GRE,gre,\
 	$(MODULES_DIR)/kernel/net/ipv4/ip_gre.o \
 ,CONFIG_NET_IPGRE))
-ifneq (${shell ls $(MODULES_DIR)/kernel/net/sched/*.o},)
+ifneq ($(wildcard $(MODULES_DIR)/kernel/net/sched/*.o),)
 CONFIG_SCHED:=m
 endif
 $(eval $(call KMOD_template,SCHED,sched,\