test: compile the test program with -dontlink unix

Unfortunately ocamlobjinfo was conservative and led to false positives.

Signed-off-by: David Scott <dave.scott@citrix.com>
Regenerate OASIS

Signed-off-by: David Scott <dave.scott@citrix.com>
Remove the dependency on uerror, this would fail the linking test.

Signed-off-by: David Scott <dave.scott@citrix.com>