Comment 13 for bug 1776489

If you want to try (on your own risk) the Disco Dingo version on Bionic where libxmltooling8 is built against libcurl4, then you can do this:

curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/x/xml-security-c/libxml-security-c20_2.0.2-3_amd64.deb' > libxml-security-c20_2.0.2-3_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/l/log4shib/liblog4shib2_2.0.0-2_amd64.deb' > liblog4shib2_2.0.0-2_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/x/xmltooling/libxmltooling8_3.0.4-1_amd64.deb' > libxmltooling8_3.0.4-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/s/shibboleth-sp/shibboleth-sp-common_3.0.4+dfsg1-1_all.deb' > shibboleth-sp-common_3.0.4+dfsg1-1_all.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/x/xmltooling/xmltooling-schemas_3.0.4-1_all.deb' > xmltooling-schemas_3.0.4-1_all.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/o/opensaml/opensaml-schemas_3.0.1-1_all.deb' > opensaml-schemas_3.0.1-1_all.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/s/shibboleth-sp/libshibsp8_3.0.4+dfsg1-1_amd64.deb' > libshibsp8_3.0.4+dfsg1-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/main/k/krb5/libkrb5support0_1.17-1_amd64.deb' > libkrb5support0_1.17-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/main/k/krb5/libkrb5-3_1.17-1_amd64.deb' > libkrb5-3_1.17-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/main/k/krb5/libgssapi-krb5-2_1.17-1_amd64.deb' > libgssapi-krb5-2_1.17-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/main/k/krb5/libkrb5-3_1.17-1_amd64.deb' > libkrb5-3_1.17-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/o/opensaml/libsaml10_3.0.1-1_amd64.deb' > libsaml10_3.0.1-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/s/shibboleth-sp/libshibsp-plugins_3.0.4+dfsg1-1_amd64.deb' > libshibsp-plugins_3.0.4+dfsg1-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/main/i/init-system-helpers/init-system-helpers_1.56+nmu1_all.deb' > init-system-helpers_1.56+nmu1_all.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/s/shibboleth-sp/shibboleth-sp-utils_3.0.4+dfsg1-1_amd64.deb' > shibboleth-sp-utils_3.0.4+dfsg1-1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/s/shibboleth-sp/shibboleth-sp2-common_3.0.4+dfsg1-1_all.deb' > shibboleth-sp2-common_3.0.4+dfsg1-1_all.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/x/xerces-c/libxerces-c3.2_3.2.2+debian-1build1_amd64.deb' > libxerces-c3.2_3.2.2+debian-1build1_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/main/i/icu/libicu63_63.1-6_amd64.deb' > libicu63_63.1-6_amd64.deb
curl -L 'http://mirrors.kernel.org/ubuntu/pool/universe/s/shibboleth-sp/libapache2-mod-shib_3.0.4+dfsg1-1_amd64.deb' > libapache2-mod-shib_3.0.4+dfsg1-1_amd64.deb

apt-get install libcurl4 libxalan-c111 libodbc1 libmemcached11 libfcgi0ldbl
dpkg -i libxml-security-c20_2.0.2-3_amd64.deb
dpkg -i liblog4shib2_2.0.0-2_amd64.deb
dpkg -i libxmltooling8_3.0.4-1_amd64.deb
dpkg -i shibboleth-sp-common_3.0.4+dfsg1-1_all.deb
dpkg -i xmltooling-schemas_3.0.4-1_all.deb
dpkg -i opensaml-schemas_3.0.1-1_all.deb
dpkg -i libkrb5-3_1.17-1_amd64.deb
dpkg -i libkrb5support0_1.17-1_amd64.deb
dpkg -i libgssapi-krb5-2_1.17-1_amd64.deb
dpkg -i libshibsp8_3.0.4+dfsg1-1_amd64.deb
dpkg -i libkrb5-3_1.17-1_amd64.deb
dpkg -i libsaml10_3.0.1-1_amd64.deb
dpkg -i libshibsp8_3.0.4+dfsg1-1_amd64.deb
dpkg -i libshibsp-plugins_3.0.4+dfsg1-1_amd64.deb
dpkg -i libshibsp-plugins_3.0.4+dfsg1-1_amd64.deb
dpkg -i init-system-helpers_1.56+nmu1_all.deb
dpkg -i shibboleth-sp-utils_3.0.4+dfsg1-1_amd64.deb
dpkg -i shibboleth-sp2-common_3.0.4+dfsg1-1_all.deb
dpkg -i libicu63_63.1-6_amd64.deb
dpkg -i libxerces-c3.2_3.2.2+debian-1build1_amd64.deb
dpkg -i libapache2-mod-shib_3.0.4+dfsg1-1_amd64.deb