Minor changes to dependency compilation

- Net-SNMP's persistent directory path can be now specified as a variable

dependencies.mk

@@ -57,6 +57,8 @@ CASSANDRA_COMMITLOG_SEGMENT_SIZE_IN_MB = 16
 CASSANDRA_TOMBSTONE_WARN_THRESHOLD     = 100000
 CASSANDRA_TOMBSTONE_FAILURE_THRESHOLD  = 10000000
 
+NETSNMP_PERSISTENT_DIR=$(DCDBDEPLOYPATH)/var/net-snmp
+
 FETCH = wget -c --no-check-certificate -O 
 MD5 = $(if $(shell which md5 2>/dev/null),md5,$(if $(shell md5sum --tag Makefile 2&> /dev/null || true),md5sum --tag,openssl md5))
 DISTFILESNAMES = $(foreach f,$(DISTFILES),$(shell echo "$(f)" | sed 's/;.*//'))
@@ -285,7 +287,7 @@ $(DCDBDEPSPATH)/freeipmi-$(FREEIPMI_VERSION)/.installed: $(DCDBDEPSPATH)/freeipm
 $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.built: $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.patched
 	@echo ""
 	@echo "Building net-SNMP library..."
-	cd $(@D) && ./configure --prefix=$(DCDBDEPLOYPATH) --with-default-snmp-version=3 --with-defaults --with-logfile=none --with-persistent-directory=$(DCDBDEPLOYPATH)/var/net-snmp --disable-embedded-perl --disable-perl-cc-checks --without-perl-modules --disable-agent --disable-applications --disable-manuals --disable-scripts --disable-mibs --disable-mib-loading
+	cd $(@D) && ./configure --prefix=$(DCDBDEPLOYPATH) --with-default-snmp-version=3 --with-defaults --with-logfile=none --with-persistent-directory=$(NETSNMP_PERSISTENT_DIR) --disable-embedded-perl --disable-perl-cc-checks --without-perl-modules --disable-agent --disable-applications --disable-manuals --disable-scripts --disable-mibs
 	cd $(@D) && make -j $(MAKETHREADS) && touch $(@)
 
 $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.installed: $(DCDBDEPSPATH)/net-snmp-$(NET-SNMP_VERSION)/.built | $(DCDBDEPLOYPATH)