fixup! pkg/c25519: use dlcache for fetching zip archive

Author: crasbe

pkg/c25519/Makefile

@@ -4,7 +4,6 @@ PKG_VERSION = 2017-10-05
 PKG_EXT     = zip
 PKG_LICENSE = PD
 PKG_SHA512  = dbfb4285837ab2ea3d99c448b22877cc7a139ccbaebb1de367e2bec1fd562fe629b389d86603915448078b8fd7e631c8fc9a7d126eb889a1ba0c17611369b190
-PKG_MD5     = 2f19396f8becb44fe1cd5e40111e3ffb
 
 PKG_SOURCE_DIR ?= $(PKGDIRBASE)/$(PKG_NAME)
 PKG_ZIPFILE = $(PKGDIRBASE)/$(PKG_NAME)-$(PKG_VERSION).$(PKG_EXT)
@@ -27,7 +26,7 @@ $(PKG_SOURCE_DIR)/: $(PKG_ZIPFILE)
 
 $(PKG_ZIPFILE):
 	$(QQ)mkdir -p $(PKGDIRBASE)
-	$(Q)$(DOWNLOAD_TO_FILE) $@ $(PKG_ZIP_URL) $(PKG_MD5)
+	$(Q)$(DOWNLOAD_TO_FILE) $@ $(PKG_ZIP_URL) $(PKG_SHA512)
 
 clean::
 	# Reset package to checkout state.