           SPELL=libsignal
          SPELLX=${SPELL}-protocol-c
         VERSION=2.3.3
          SOURCE=${SPELL}-${VERSION}.tar.gz
   SOURCE_URL[0]=https://github.com/signalapp/${SPELLX}/archive/v${VERSION}.tar.gz
     SOURCE_HASH=sha512:19d892e13fac32022658de5eaf1db8cec3226f5f3f37a4c1c33bfa9653126ecbc6350a1ab5624025f909803c2277b86321dbea7f64e9932883cae57b65f58112
SOURCE_DIRECTORY="${BUILD_DIRECTORY}/${SPELLX}-${VERSION}"
        WEB_SITE=https://signal.org/
      LICENSE[0]=GPL
         ENTERED=20190802
           SHORT="Signal Protocol C Library"
cat << EOF
This is a ratcheting forward secrecy protocol that works in synchronous and
asynchronous messaging environments.
EOF
