Older versions of openssl don't provide all the required crypto code.
To handle this case ipsec-tools includes it's own version of the
required crypto code but it fails to add it the search path so
compilation fails. Fix it here since OE currently have an older
version of openssl.

--- ipsec-tools-0.6.6/src/racoon/Makefile.am	2006/08/17 05:10:57	1.1
+++ ipsec-tools-0.6.6/src/racoon/Makefile.am	2006/08/17 05:12:08
@@ -9,7 +9,7 @@
 
 adminsockdir=${localstatedir}/racoon
 
-INCLUDES = -I${srcdir}/../libipsec 
+INCLUDES = -I${srcdir}/../libipsec -I${srcdir}/missing
 AM_CFLAGS = -D_GNU_SOURCE @GLIBC_BUGS@ -DSYSCONFDIR=\"${sysconfdir}\" \
 	-DADMINPORTDIR=\"${adminsockdir}\"
 AM_LDFLAGS = @EXTRA_CRYPTO@ -lcrypto