Merge pull request #53 from ocaml/feature/opam

To help fix #50: put the opam file in the repo to make it easy to "opam publish" new versions

zarith.opam

@@ -0,0 +1,43 @@
+opam-version: "2.0"
+name: "zarith"
+maintainer: "Xavier Leroy <[email protected]>"
+authors: [
+ "Antoine Miné"
+ "Xavier Leroy"
+ "Pascal Cuoq"
+]
+homepage: "https:/ocaml/Zarith"
+bug-reports: "https:/ocaml/Zarith/issues"
+dev-repo: "git+https:/ocaml/Zarith.git"
+build: [
+ ["./configure"] {os != "openbsd" & os != "freebsd" & os != "macos"}
+ [
+ "sh"
+ "-exc"
+ "LDFLAGS=\"$LDFLAGS -L/usr/local/lib\" CFLAGS=\"$CFLAGS -I/usr/local/include\" ./configure"
+ ] {os = "openbsd" | os = "freebsd"}
+ [
+ "sh"
+ "-exc"
+ "LDFLAGS=\"$LDFLAGS -L/opt/local/lib -L/usr/local/lib\" CFLAGS=\"$CFLAGS -I/opt/local/include -I/usr/local/include\" ./configure"
+ ] {os = "macos"}
+ [make]
+]
+install: [
+ [make "install"]
+]
+remove: ["ocamlfind" "remove" "zarith"]
+depends: [
+ "ocaml"
+ "ocamlfind"
+ "conf-gmp"
+ "conf-perl" {build}
+]
+synopsis:
+ "Implements arithmetic and logical operations over arbitrary-precision integers"
+description: """
+The Zarith library implements arithmetic and logical operations over
+arbitrary-precision integers. It uses GMP to efficiently implement
+arithmetic over big integers. Small integers are represented as Caml
+unboxed integers, for speed and space economy."""
+flags: light-uninstall