Already up to date.
==> Making package: libiconv 1.16-2 (Mon Apr 19 01:49:23 2021)
==> Checking runtime dependencies...
==> Checking buildtime dependencies...
==> Retrieving sources...
  -> Found libiconv-1.16.tar.gz
  -> Found libiconv-1.16.tar.gz.sig
==> Validating source files with sha512sums...
    libiconv-1.16.tar.gz ... Passed
    libiconv-1.16.tar.gz.sig ... Skipped
==> Verifying source file signatures with gpg...
    libiconv-1.16.tar.gz ... FAILED (unknown public key 4F494A942E4616C2)
==> ERROR: One or more PGP signatures could not be verified!