Port OCaml bindings to use Dune and Opam

.gitignore

@@ -31,23 +31,7 @@ bindings/python/capstone.egg-info/
 bindings/java/capstone.jar
 
 # ocaml
-bindings/ocaml/*.cmi
-bindings/ocaml/*.cmx
-bindings/ocaml/*.cmxa
-bindings/ocaml/*.mli
-bindings/ocaml/test
-bindings/ocaml/test_arm
-bindings/ocaml/test_aarch64
-bindings/ocaml/test_basic
-bindings/ocaml/test_mips
-bindings/ocaml/test_x86
-bindings/ocaml/test_detail
-bindings/ocaml/test_ppc
-bindings/ocaml/test_sparc
-bindings/ocaml/test_systemz
-bindings/ocaml/test_xcore
-bindings/ocaml/test_m680x
-
+bindings/ocaml/_build
 
 # test binaries
 tests/test_basic

bindings/ocaml/README

@@ -1,23 +1,23 @@
-To compile Ocaml binding, Ocaml toolchain is needed. On Ubuntu Linux,
+To compile OCaml bindings, OCaml toolchain is needed. On Ubuntu Linux,
 you can install Ocaml with:
 
-    $ sudo apt-get install ocaml-nox
+    $ sudo apt-get install ocaml opam
 
-To compile Ocaml binding, simply run "make" on the command line.
+To compile OCaml bindings, simply run "opam install ." on the command line.
 
 
 This directory also contains some test code to show how to use Capstone API.
 
-- test_basic.ml
+- test/test_basic.ml
   This code shows the most simple form of API where we only want to get basic
   information out of disassembled instruction, such as address, mnemonic and
   operand string.
 
-- test_detail.ml:
+- test/test_detail.ml:
   This code shows how to access to architecture-neutral information in disassembled
   instructions, such as implicit registers read/written, or groups of instructions
   that this instruction belong to.
 
-- test_<arch>.ml
+- test/test_<arch>.ml
   These code show how to access architecture-specific information for each
   architecture.