autoconf: Update automake scripts for riscv64

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>

lfs/Config

@@ -311,7 +311,8 @@ endef
 ifeq "$(BUILD_ARCH)" "$(filter $(BUILD_ARCH),aarch64 riscv64)"
 define UPDATE_AUTOMAKE
 	for i in $$(find $(DIR_APP) -name config.guess -o -name config.sub); do \
-		cp -vf /usr/share/automake*/$$(basename $${i}) $${i}; \
+		cp -vf /usr/share/automake*/$$(basename $${i}) $${i} || \
+			cp -vf $(TOOLS_DIR)/share/automake*/$$(basename $${i}) $${i}; \
 	done
 endef
 endif

lfs/autoconf

@@ -69,9 +69,9 @@ $(subst %,%_MD5,$(objects)) :
 $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects))
 	@$(PREBUILD)
 	@rm -rf $(DIR_APP) && cd $(DIR_SRC) && tar Jxf $(DIR_DL)/$(DL_FILE)
+	$(UPDATE_AUTOMAKE)
 	cd $(DIR_APP) && ./configure \
 		--prefix=/usr
-
 	cd $(DIR_APP) && make $(MAKETUNING)
 	cd $(DIR_APP) && make install
 	@rm -rf $(DIR_APP)