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make 无法识别已安装的 opam ocamlfind

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make 无法识别已安装的 opam ocamlfind

我正在尝试运行make涉及的依赖项ocamlfind，但是当我尝试安装它时，它给了我循环依赖项和对的依赖项ocaml-base-nox。

我发现我可以用一个命令同时安装相互依赖的 ocaml-findlib和： 但是，剩余的依赖项返回。它确实提到了几个包，显然：libfindlib-ocamlsudo apt install ocaml-findlib ocaml-findlib libfindlib-ocaml ocaml-base-nox-4.01.0Package 'ocaml-base-nox-4.01.0' has no installation candidate

Package ocaml-base-nox-4.01.0 is a virtual package provided by:
  ocaml-base-nox 4.01.0-3ubuntu3.1 [Not candidate version]
  ocaml-base-nox 4.01.0-3ubuntu3 [Not candidate version]

帮助安装该软件包的答案可能会有所帮助。否则，向我揭示如何让 make 识别已opam安装实例的答案可能会有所帮助。如您所见，该安装确实有效：

vagrant@vagrant-ubuntu-trusty-64:~/projectfolder$ opam list
# Installed packages for system:
base-bigarray   base  Bigarray library distributed with the OCaml compiler
base-threads    base  Threads library distributed with the OCaml compiler
base-unix       base  Unix library distributed with the OCaml compiler
conf-m4            1  Virtual package relying on m4
ocamlfind      1.7.3  A library manager for OCaml

如您所见，我能够通过 opam 成功安装 ocamlfind。有趣的是，我的 make 命令似乎无法识别ocamlfind我在安装时添加到环境中的内容opam：

/path/to/some/folder/which/is/super/secret -O2 -d acommand file.f
[Error] Critical: Error starting ocamlopt process: Cannot run program
"ocamlfind" (in directory
"/path/to/some/folder/."): error=2, No such file
or directory (Cannot run program "ocamlfind" (in directory
"/path/to/some/folder/."): error=2, No such file
or directory)
make: *** [some/folder/timestamp] Error 113

答案1

出现此问题的原因是您的环境变量设置不正确。为此，运行以下命令即可：

eval `opam config env`

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