android: Update README.ndk

diff --git a/src/frontends/android/README.ndk b/src/frontends/android/README.ndk
index 7c8cd309e98a8f1330e668156c44af176cb4076f..22150dd556eb5df1989cb4415b28aa1443ba286a 100644 (file)
--- a/src/frontends/android/README.ndk
+++ b/src/frontends/android/README.ndk
@@ -1,13 +1,14 @@
-To build this within the NDK several things have to be added in the
-app/src/main/jni/ folder:
+To build this within the NDK the following things have to be done:
 
- - strongswan: The strongSwan sources.  This can either be an extracted tarball,
-   or a symlink to the Git repository.  To build from the repository the sources
-   have to be prepared first (see HACKING for a list of required tools):
+ - By default the strongSwan sources of the current Git tree are used. They have
+   to be prepared first (see HACKING for a list of required tools):
 
      ./autogen.sh && ./configure && make && make distclean
 
- - openssl: The OpenSSL sources.  Since the sources need to be changed to be
-   built on Android (and especially in the NDK), we provide a modified mirror
-   of the official Android OpenSSL version on git.strongswan.org.
+   It is also possible to use the sources from a different directory (e.g. an
+   extracted tarball) by setting strongswan_DIR in app/src/main/jni/Android.mk.
 
+ - The OpenSSL or BoringSSL sources are expected in app/src/main/jni/openssl.
+   Since the sources need to be changed to be built on Android (and especially
+   in the NDK) we provide a modified mirror of the official Android repositories
+   on git.strongswan.org.