include: use anchored patterns for dependency checking

Anchor search pattern when testing dependencies, otherwise the check may
succeed in cases where it shouldn't, e.g. when matching "udp_tunnel.ko"
against "ip6_udp_tunnel.ko".

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44207 3c298f89-4303-0410-b956-a3cf2f4a3e73

include/package-ipkg.mk

@@ -66,7 +66,7 @@ ifneq ($(PKG_NAME),toolchain)
 				XARGS="$(XARGS)"; \
 			$(SCRIPT_DIR)/gen-dependencies.sh "$$(IDIR_$(1))"; \
 		) | while read FILE; do \
-			grep -q "$$$$FILE" $(PKG_INFO_DIR)/$(1).provides || \
+			grep -qE "^$$$$FILE$$$$" $(PKG_INFO_DIR)/$(1).provides || \
 				echo "$$$$FILE" >> $(PKG_INFO_DIR)/$(1).missing; \
 		done; \
 		if [ -f "$(PKG_INFO_DIR)/$(1).missing" ]; then \