strongSwan

Trying to build according to tutorials and getting this errors.

make: * [/home/akutashov/Documents/android-studio-workspace/strongswan/src/frontends/android/app/src/main/obj/local/x86/libstrongswan.so] Error 1
make: Waiting for unfinished jobs....
/home/akutashov/Documents/android-studio-workspace/strongswan/src/frontends/android/app/src/main/obj/local/arm64-v8a/objs/strongswan/crypto/crypto_tester.o: In function `test_xof':
/home/akutashov/Documents/android-studio-workspace/strongswan/src/libstrongswan/crypto/crypto_tester.c
Error:(1158) undefined reference to 'ext_out_function_names'
Error:(1152) undefined reference to 'ext_out_function_names'
Error:(1170) undefined reference to 'ext_out_function_names'
Error:(1106) undefined reference to 'ext_out_function_names'
Error:(1170) undefined reference to `ext_out_function_names'
Error:(1170) undefined reference to `ext_out_function_names'
Error:(1152) undefined reference to `ext_out_function_names'
Error:(1152) undefined reference to `ext_out_function_names'
Error:(1160) undefined reference to `ext_out_function_names'
/home/akutashov/Documents/android-studio-workspace/strongswan/src/frontends/android/app/src/main/obj/local/arm64-v8a/objs/strongswan/crypto/crypto_tester.o:/home/akutashov/Documents/android-studio-workspace/strongswan/src/frontends/android/app/src/main/jni/../../../../../../..//src/libstrongswan/crypto/crypto_tester.c:1160: more undefined references to `ext_out_function_names' follow
Error:error: ld returned 1 exit status
make: ** [/home/akutashov/Documents/android-studio-workspace/strongswan/src/frontends/android/app/src/main/obj/local/arm64-v8a/libstrongswan.so] Error 1

Ubuntu 14.04, x64
Tried to change gradle distibutions, but the problem persists.

Possible workaround for this to add
#include <crypto/xofs/xof.c> to strongswan/src/libstrongswan/crypto/crypto_tester.c

Perhaps, need to resolve xof.c/xof.h enums