I'm trying to build Strongswan on android (https://github.com/strongswan/strongswan/tree/master/src/frontends/android). I follow the instructions (https://docs.strongswan.org/docs/5.9/os/androidVpnClientBuild.html) and create OpenSSL using the command:
ANDROID_NDK_ROOT=~/android-ndk-<ver> \ OPENSSL_SRC=~/openssl-<ver> \ src/frontends/android/openssl/build.sh
I get success message, however it is followed by errors and openssl folder in /Users/mac/strongswan/src/frontends/android/app/src/main/jni/openssl is empty:
Any ideas on how to fix it?