bsdtar has moved to libarchive-tools package.
Something has changed in the newer gcc or mingw that makes Opus and
Sodium fail to build with:
undefined reference to `__memcpy_chk'
The solution is to use -lssp or -fstack-protector, but while -lssp
worked for Opus, it was breaking Sodium's `make install` as it prevented
the .def file from being generated during the build time for some
reason:
/usr/bin/install: cannot stat './libsodium-24.def': No such file or directory
while -fstack-protector worked just fine, so -fstack-protector was used
for both. This adds a new library dependency on libssp-0.dll.
seccomp is used by the docker host, and the default version shipped with
Ubuntu 16.04 does not support syscalls used by Qt5's configure inside the
docker container. Upgrading libseccomp2 resolves this issue.
Fix#5874
