demote "unknown android ndk" to warning only (and add 13.1 as known)
commit3e522fcbaad0848a2fb4d4d5a5c0bfe81475249d
authorChristian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Thu, 10 Nov 2016 10:52:55 +0000 (10 11:52 +0100)
committerChristian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Thu, 10 Nov 2016 11:00:42 +0000 (10 12:00 +0100)
tree587205d5537c53ad519d1a3f778ee05dac6b63e0
parent61f760d2c4ce97fc3f0f533cd2989ea2aad33276
demote "unknown android ndk" to warning only (and add 13.1 as known)

android studio/sdk manager doesn't provide a default way to install
multiple versions of the NDK, so typically only the latest one will be
available. Don't make configure error out in this case, but print a
warning instead.

Change-Id: I6af9a3f088daf7d12ebd9910286d7f44d264014a
configure.ac