Bump to version 0.4.

Nothing new, only ppx conversion.

Author: haesbaert

lib/META

@@ -1,6 +1,6 @@
-version = "0.1"
+version = "0.4"
 description = "Rawlink is a portable interface to BPF/AF_SOCKET"
-requires = "unix lwt.unix lwt cstruct cstruct.syntax"
+requires = "unix lwt.unix lwt cstruct cstruct.ppx"
 archive(byte) = "rawlink.cma"
 archive(byte, plugin) = "rawlink.cma"
 archive(native) = "rawlink.cmxa"

opam

@@ -1,6 +1,6 @@
 opam-version: "1.2"
 name: "rawlink"
-version: "0.3"
+version: "0.4"
 maintainer: "Christiano F. Haesbaert <haesbaert@haesbaert.org>"
 authors: "Christiano F. Haesbaert <haesbaert@haesbaert.org>"
 homepage: "https://github.com/haesbaert/rawlink"
@@ -11,8 +11,8 @@ build: ["sh" "build.sh"]
 depends: [
   "ocamlfind" {build}
   "lwt" {>= "2.4.7"}
-  "cstruct"
+  "cstruct" {>= "1.9"}
   "ocamlbuild" {build}
 ]
-available: [ocaml-version >= "4.02"]
+available: [ocaml-version >= "4.02.3"]