[strongSwan] Error while building Strongswan Code downloaded from Git

[ip flow]

Hi All,

I have downloaded the Strongswan latest codebase from git using:
git clone git://git.strongswan.org/strongswan.git

After that I have followed the instructions given at:
http://wiki.strongswan.org/projects/strongswan/wiki/AndroidVPNClient<https://inowa.aricent.com/owa/redir.aspx?C=EexaK71de0m3w3P_rQwpFT77exBn0s9I-Cgxm4fuOmf_Ouq083Sj47VW8DAtTQ7SSl1loXE29bk.&URL=http%3a%2f%2fwiki.strongswan.org%2fprojects%2fstrongswan%2fwiki%2fAndroidVPNClient>
for building the .so files for my native code.

I'm getting the following error while running ndk-build from my jni
directory:

root at ubuntu4-MacBookPro:/home/ubuntu4/strongswan_from_git/strongswan/src/frontends/android/jni#
ls
Android.mk  libandroidbridge  openssl  strongswan  vstr
<<
/ikev1/tasks/informational.h sa/ikev1/tasks/isakmp_cert_pre.h
sa/ikev1/tasks/isakmp_cert_post.h sa/ikev1/tasks/isakmp_natd.h
sa/ikev1/tasks/isakmp_vendor.h sa/ikev1/tasks/isakmp_delete.h
sa/ikev1/tasks/isakmp_dpd.h sa/ikev1/tasks/xauth.h
sa/ikev1/tasks/quick_mode.h sa/ikev1/tasks/quick_delete.h
sa/ikev1/tasks/mode_config.h processing/jobs/dpd_timeout_job.h
processing/jobs/adopt_children_job.h
Android NDK: WARNING: Unsupported source file extensions in
/home/ubuntu4/Deepika/strongswan_from_git/strongswan/src/frontends/android/jni/strongswan/src/libhydra/Android.mk
for module hydra
Android NDK:   hydra.h attributes/attributes.h
attributes/attribute_provider.h attributes/attribute_handler.h
attributes/attribute_manager.h attributes/mem_pool.h
kernel/kernel_interface.h kernel/kernel_ipsec.h kernel/kernel_net.h
kernel/kernel_listener.h
Android NDK: WARNING: Unsupported source file extensions in
/home/ubuntu4/Deepika/strongswan_from_git/strongswan/src/frontends/android/jni/strongswan/src/libipsec/Android.mk
for module ipsec
Android NDK:   ipsec.h esp_context.h esp_packet.h ip_packet.h
ipsec_event_listener.h ipsec_event_relay.h ipsec_policy.h
ipsec_policy_mgr.h ipsec_processor.h ipsec_sa.h ipsec_sa_mgr.h
make: *** No rule to make target
`/home/ubuntu4/strongswan_from_git/strongswan/src/frontends/android/jni/strongswan/
Android.common.mk'.  Stop.
>>

Please suggest if something is missing from the code available on git
and/or something extra needs to be done.

Regards
ipflow123
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