Opam for windows: Error when running make lib-pkg

[Chimrod]

I’m trying to compile opam by my own. I’ve successfully compiled the compiler, and I want to apply the next step.

$ make lib-pkg
make -j -C src_ext lib-pkg
make[1]: Entering directory '/home/opam/src_ext'
mkdir -p tmp-dune-local
mkdir -p tmp-findlib
cd tmp-dune-local && tar xfj ../dune-local.tbz
cd tmp-findlib && tar xfz ../findlib.tar.gz
mkdir -p tmp-ocamlbuild
mkdir -p tmp-topkg
cd tmp-ocamlbuild && tar xfz ../ocamlbuild.tar.gz
cd tmp-topkg && tar xfj ../topkg.tbz
rm -rf topkg
rm -rf findlib
rm -rf ocamlbuild
make MAKEFLAGS= -f ../Makefile.packages -C topkg topkg-pkg-build && touch topkg.pkgbuild
make[2]: Entering directory '/home/opam/src_ext/topkg'
ocaml pkg/pkg.ml build --pkg-name topkg --dev-pkg false
mkdir 'C:\cygwin64\home\opam\src_ext\topkg\_build'
rm -rf dune-local
Le chemin d’accès spécifié est introuvable.
mkdir pkg
mkdir src
''ocamlfind ocamldep -modules src/topkg.ml > src/topkg.ml.depends
''ocamlfind ocamldep -modules src/topkg.mli > src/topkg.mli.depends
''ocamlfind ocamlc -c -g -bin-annot -safe-string -I src -I test -I src-care -I src-bin -o src/topkg.cmi src/topkg.mli
Exit code 126 while executing this command:
  ''ocamlfind ocamlc -c -g -bin-annot -safe-string -I src -I test -I src-care -I src-bin -o src/topkg.cmi src/topkg.mli
pkg.ml: [ERROR] cmd ["ocamlbuild" "-use-ocamlfind" "-classic-display" "-j" "4" "-tag" "debug"
     "-build-dir" "_build" "CHANGES.md" "LICENSE.md" "README.md" "pkg/META"
     "topkg.opam" "src/topkg.a" "src/topkg.cmxs" "src/topkg.cmxa"
     "src/topkg.cma" "src/topkg_vcs.cmx" "src/topkg_test.cmx"
     "src/topkg_string.cmx" "src/topkg_result.cmx" "src/topkg_publish.cmx"
     "src/topkg_pkg.cmx" "src/topkg_os.cmx" "src/topkg_opam.cmx"
     "src/topkg_main.cmx" "src/topkg_log.cmx" "src/topkg_ipc.cmx"
     "src/topkg_install.cmx" "src/topkg_fpath.cmx" "src/topkg_fexts.cmx"
     "src/topkg_distrib.cmx" "src/topkg_conf.cmx" "src/topkg_codec.cmx"
     "src/topkg_cmd.cmx" "src/topkg_build.cmx" "src/topkg.cmx"
     "src/topkg.cmi" "src/topkg.mli"]: exited with 126
make[2]: *** [../Makefile.packages:102: topkg-pkg-build] Error 1
make[2]: Leaving directory '/home/opam/src_ext/topkg'
make[1]: *** [Makefile:125: topkg.pkgbuild] Error 2
make[1]: *** Waiting for unfinished jobs....
make[1]: Leaving directory '/home/opam/src_ext'
make: *** [Makefile:85: lib-pkg] Error 2

What’s surprising is the error message in french (my windows is localized in french), even if I try to execute the command with LANG=C make lib-pkg

env.log

[kit-ty-kate]

While it is in the README (sorry about that), I would not recommend using make lib-pkg as it is currently untested. There is a PR to remove it at #5494.

Instead I would suggest using ./configure --with-vendored-deps or the more general make cold if you do not already have the compiler.