Instructons of building StrongSwan android client from git source

Official guide

https://wiki.strongswan.org/projects/strongswan/wiki/AndroidVPNClientBuild

• Preparing the dev environment(Build on Ubuntu 14.04 amd64 to prevent various issues), see the [Doc] 1
• Preparing the source code: ./autogen.sh && ./configure && make dist
• Preparing the dev environment with Android sdk and ndk for further development

Build by following the official guide

• Download the prepared source distribution or official distribution
• Extract it to jni/strongswan or link to the prepared git repo
• Run ndk-build to build it

Build from customized github repo

• git clone https://github.com/vmlinz/strongswan-android
• git submodule init && git submodule update
• Optional: switch the strongswan repo to a stable tag
• Prepare the git source code as stated in the official gudie, run ./autogen.sh && ./configure && make dist in the root dir of strongswan source code
• run ndk-build -j8 under app/src/main/jni to build the native code
• run ./gradlew build under android project root to build the target application

Issues

• https://wiki.strongswan.org/issues/292
• https://stackoverflow.com/questions/8458464/compiling-fails-on-dl-info

Resources

• https://github.com/strongswan/strongswan/blob/master/testing/scripts/build-baseimage
• https://github.com/strongswan/strongswan