Revert "Remove the .opam files from version control, since they are g…

…enerated from dune-project."

This reverts commit a3e90ca.

.gitignore

@@ -3,4 +3,3 @@ _build
 .merlin
 *.install
 .*.swp
-*.opam

cppo.opam

@@ -0,0 +1,43 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+version: "1.7.0"
+synopsis: "Code preprocessor like cpp for OCaml"
+description: """
+Cppo is an equivalent of the C preprocessor for OCaml programs.
+It allows the definition of simple macros and file inclusion.
+
+Cppo is:
+
+* more OCaml-friendly than cpp
+* easy to learn without consulting a manual
+* reasonably fast
+* simple to install and to maintain
+"""
+maintainer: [
+  "Martin Jambon <[email protected]>" "Yishuai Li <[email protected]>"
+]
+authors: ["Martin Jambon"]
+license: "BSD-3-Clause"
+homepage: "https://github.com/ocaml-community/cppo"
+doc: "https://ocaml-community.github.io/cppo"
+bug-reports: "https://github.com/ocaml-community/cppo/issues"
+depends: [
+  "ocaml" {>= "4.02.3"}
+  "dune" {>= "2.0"}
+  "base-unix"
+]
+build: [
+  ["dune" "subst"] {pinned}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/ocaml-community/cppo.git"

cppo_ocamlbuild.opam

@@ -0,0 +1,39 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+version: "1.7.0"
+synopsis: "Plugin to use cppo with ocamlbuild"
+description: """
+This ocamlbuild plugin lets you use cppo in ocamlbuild projects.
+
+To use it, you can call ocamlbuild with the argument `-plugin-tag
+package(cppo_ocamlbuild)` (only since ocaml 4.01 and cppo >= 0.9.4).
+"""
+maintainer: [
+  "Martin Jambon <[email protected]>" "Yishuai Li <[email protected]>"
+]
+authors: ["Martin Jambon"]
+license: "BSD-3-Clause"
+homepage: "https://github.com/ocaml-community/cppo"
+doc: "https://ocaml-community.github.io/cppo"
+bug-reports: "https://github.com/ocaml-community/cppo/issues"
+depends: [
+  "ocaml"
+  "dune" {>= "2.0"}
+  "ocamlbuild"
+  "ocamlfind"
+]
+build: [
+  ["dune" "subst"] {pinned}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/ocaml-community/cppo.git"