unikernel/duniverse/ocaml-syntax-shims/README.md

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+ocaml-syntax-shims
+==================
+
+This package provides a small utility that backports some of the newer
+OCaml syntax to older OCaml compilers. This allows adopting new
+features such as `let+` while still keeping compatibility with older
+OCaml compiler.
+
+To use it, simply depend on this package and add the following field
+to your `library` or `executable` stanzas in your `dune` files:
+`(preprocess future_syntax)`. For instance:
+
+```scheme
+(library
+ (name mylib)
+ (preprocess future_syntax))
+```