Ubuntu 18.04.3
CMake v3.15.5
git v2.17.1
Qt v5.11.0 (as recommended)
subversion v1.9.7-4 and libapache2-mod-svn v1.9.7-4
gcc v7.4.0
Slicer-SuperBuild/LibArchive/libarchive/archive_pack_dev.c remained untouched.
I built the master branch including your changes and it worked! Thanks!