diff -ur sysstat-10.1.5.orig/sa1.in sysstat-10.1.5/sa1.in

--- sysstat-10.1.5.orig/sa1.in	2012-05-13 15:00:56.000000000 +0200

+++ sysstat-10.1.5/sa1.in	2014-09-01 21:56:13.197869126 +0200

@@ -10,15 +10,15 @@

 # Used only if ${SYSCONFIG_DIR}/sysstat doesn't exist!

 HISTORY=0

 SADC_OPTIONS=""

-

+DDIR=@SA_DIR@

+DATE=`date +%d`

+CURRENTFILE=sa${DATE}

+CURRENTDIR=`date +%Y%m`

 SYSCONFIG_DIR=@SYSCONFIG_DIR@

+umask 0022

 [ -r ${SYSCONFIG_DIR}/sysstat ] && . ${SYSCONFIG_DIR}/sysstat

 if [ ${HISTORY} -gt 28 ]

 then

-	CURRENTDIR=`date +%Y%m`

-	DATE=`date +%d`

-	CURRENTFILE=sa${DATE}

-	DDIR=@SA_DIR@

 	cd ${DDIR} || exit 1

 	[ -d ${CURRENTDIR} ] || mkdir -p ${CURRENTDIR}

 	# If ${CURRENTFILE} exists and is a regular file, then make sure

@@ -33,8 +33,11 @@

 	# the (new) current file

 	rm -f ${CURRENTFILE}

 	ln -s ${CURRENTDIR}/${CURRENTFILE} ${CURRENTFILE}

+else

+	# If ${CURRENTFILE} exists, is a regular file and is from a previous

+	# month then delete it so that it is recreated by sadc afresh

+	[ -f ${CURRENTFILE} ] && [ "`date +%Y%m -r ${CURRENTFILE}`" -lt "${CURRENTDIR}" ] && rm -f ${CURRENTFILE}

 fi

-umask 0022

 ENDIR=@SA_LIB_DIR@

 cd ${ENDIR}

 [ "$1" = "--boot" ] && shift && BOOT=y || BOOT=n