pkgs/stacks/ocaml/stack.ncl at main · gominimal/pkgs

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let { stack, .. } = import "minimal.ncl" in

stack {

name = "ocaml",

# The offline OCaml dev toolchain: the compiler + build tool + findlib

# resolver, plus the gcc driver `ocamlopt` shells out to for native codegen

# (gcc -> cc1 -> collect2 -> ld) and pkgconf for C-stub libraries (zarith).

build_packages = ["gcc", "ocaml", "dune", "ocamlfind", "binutils", "pkgconf", "linux_headers"],

build_env_vars = {

CC = "gcc",

# Dune + findlib resolve library dependencies from the merged /usr tree via

# OCAMLPATH — the same offline convention every OCaml package build uses (no

# opam, no network). No env_state_wiring / download cache: the pure-dune

# model has nothing to persist (cf. rust's CARGO_HOME).

OCAMLPATH = "/usr/lib/ocaml",

CAML_LD_LIBRARY_PATH = "/usr/lib/ocaml/stublibs",

build_cmd = "dune build",

# A `dune-project` at the root is the reliable marker of a dune project

# (every one has it); `*.opam` files sit alongside but dune-project is

# canonical.

matches_project_if_any = [

{

file_regexes = {

"dune-project" = "*",

}