In order to ease building pgloader for non-lisp users, the bundle distribution is a tarball containing pgloader and its build dependencies. See the the following documentation for more details:
https://www.quicklisp.org/beta/bundles.html
The bundle comes with a specific Makefile so that building it is as
simple as the following (which includes testing the resulting binary):
make
LANG=en_US.UTF-8 make test
The compilation might takes a while, it's because SBCL is trying hard to generate run-time binary code that is fast and efficient. Yes you need to be in a unicide environment to run the test suite, so that it matches with the encoding of the test *.load files.
You can then package or use the pgloader binary:
./bin/pgloader --version
./bin/pgloader --help
Note that the SQLite test files are not included in the bundle, for weithing too much here.