Use absolute paths in ocamlbuild_test.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13259 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
PR#5652: Add support for camlp4 native plugin.

Patch by Hongbo Zhang!

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13260 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
ocamlbuild_test: Make root directory of tests before running them.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13261 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Implement -syntax ocamlfind flag for ocamlbuild

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13262 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Add test for new ocamlbuild -syntax option

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13263 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Typo.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@13264 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02