fix testsuite makefile: openbsd does not support PWD env variable

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14340 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
mergeinfo stuff that I don't understand

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14341 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
#6262: equality of first-class modules take module type aliases into account. Fix interaction with module inclusion.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14342 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
PR#6257: allow full doc comments on variant constructors and record fields

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14343 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
update Changes for PR#6257

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14344 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02