+ cd $(DIR_APP) && patch -Np1 -i $(DIR_SRC)/src/patches/strongswan-4.5.3_ipfire.patch
+
+ # Customize the welcome banner.
+ sed -i $(DIR_APP)/src/pluto/modecfg.c \
+ -e 's/^#define.*DEFAULT_UNITY_BANNER.*/#define DEFAULT_UNITY_BANNER "Welcome to IPFire - An Open Source Firewall Solution.\\n"/'