add another 18.04 prereq

diff --git a/install-ubuntu.sh b/install-ubuntu.sh
index 46606b6..658177f 100755 (executable)
--- a/install-ubuntu.sh
+++ b/install-ubuntu.sh
@@ -34,7 +34,7 @@ if [ "$DISTRO" == "Ubuntu" ]; then
            PREREQS="php7.0 php7.0-gd php7.0-pgsql php7.0-xml php7.0-dev php-memcache php-pear libapache2-mod-php7.0"
         add-apt-repository -y $PPA
        elif [ "$RELEASE" == "18.04" ]; then
-           PREREQS="php7.2 php7.2-gd php7.2-pgsql php7.2-xml php7.2-dev php-memcache php-pear libapache2-mod-php7.2"
+           PREREQS="php7.2 php7.2-gd php7.2-pgsql php7.2-xml php7.2-dev php-memcache php-pear libapache2-mod-php7.2 libssl-dev"
     fi
 else
        echo "You do not appear to be running Ubuntu.  Please install manually."