Can you please run
cd tests/openpgp
make check XTESTS=4gb-packet.scm verbose=4
Can you please run
cd tests/openpgp
make check XTESTS=4gb-packet.scm verbose=4
This is no a bug but a non-proper installation of libgcrypt. In fact the output
of libgcrypt's "make install" shows hints on how to finish the install; also
pointing to ldconfig.
In general it is not easy to install a newer version of a library on a system
which already has an older version of that library.