Also add TAR_OPTIONS and TAR_CMD. Unfortunately, latest version of libsodium extracts to an additional libsodium-latest subfolder, which is unneccessary and removed by these options.
Signed-off-by: Carsten Schuette <schuettecarsten@googlemail.com>
scalarmult_ed25519_ref10 was excluded from 'minimal' variant (which is
what we are building) by upstream commit f5076db5f8ef27.
Revert that to allow downstream projects to make use of it (eg. gnunet)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>