When configured with IKEv1 but not IKEv2, the libraries charon
links against lack symbol ike_auth_lifetime_create which is provided
by ike_auth_lifetime.c.  This patch makes sure ike_auth_lifetime.c
is compiled and linked into libcharon.so.

Signed-off-by: Anthony G. Basile <blueness@gentoo.org>
X-Gentoo-Bug: 435614
X-Gentoo-Bug-URL: http://bugs.gentoo.org/show_bug.cgi?id=435614

---
diff -Naur strongswan-5.0.0.orig/src/libcharon/Makefile.am strongswan-5.0.0/src/libcharon/Makefile.am
--- strongswan-5.0.0.orig/src/libcharon/Makefile.am	2012-06-01 00:43:57.000000000 -0400
+++ strongswan-5.0.0/src/libcharon/Makefile.am	2012-09-21 07:09:06.000000000 -0400
@@ -120,6 +120,7 @@
 sa/ikev1/tasks/quick_mode.c sa/ikev1/tasks/quick_mode.h \
 sa/ikev1/tasks/quick_delete.c sa/ikev1/tasks/quick_delete.h \
 sa/ikev1/tasks/mode_config.c sa/ikev1/tasks/mode_config.h \
+sa/ikev2/tasks/ike_auth_lifetime.c sa/ikev2/tasks/ike_auth_lifetime.h \
 processing/jobs/dpd_timeout_job.c processing/jobs/dpd_timeout_job.h \
 processing/jobs/adopt_children_job.c processing/jobs/adopt_children_job.h
 endif