--- branches/mage-next/src/mage4.functions.sh.in	2017/06/30 12:34:44	3040
+++ branches/mage-next/src/mage4.functions.sh.in	2017/06/30 12:36:20	3041
@@ -48,29 +48,35 @@
 		*) die "mchecksum(): unknown method '${method}'" ;;
 	esac
 
-	if [[ -d ${rundir} ]]
+	if [[ -f ${file} ]]
 	then
-		pushd ${rundir} &> /dev/null
+		if [[ -d ${rundir} ]]
+		then
+			pushd ${rundir} &> /dev/null
 
-		# all file must be non-zero
-		retval=0
-		while read sum dest
-		do
-			if [ ! -s ${dest} ]
+			# all file must be non-zero
+			retval=0
+			while read sum dest
+			do
+				if [ ! -s ${dest} ]
+				then
+					echo "${dest}: file is empty ;("
+					retval=127
+				fi
+			done < ${file}
+			if [[ ${retval} != 127 ]]
 			then
-				echo "${dest}: file is empty ;("
-				retval=127
+				# be verbose here
+				${cmd} -c ${file} #&> /dev/null
+				retval="$?"
 			fi
-		done < ${file}
-		if [[ ${retval} != 127 ]]
-		then
-			# be verbose here
-			${cmd} -c ${file} #&> /dev/null
-			retval="$?"
-		fi
 
-		popd &> /dev/null
+			popd &> /dev/null
+		else
+			retval=1
+		fi
 	else
+		echo "missing checksum file '${file}' ;("
 		retval=1
 	fi