Opam / findlib警告"...有多个定义“

Question

我的home目录中有一个opam的本地安装，以及ocaml编译器和几个库的(fedora)包安装。

在任何项目中运行ocamlbuild命令都会给出很多警告：

findlib: [WARNING] Package dynlink has multiple definitions in /home/choeger/.opam/system/lib/dynlink/META, /usr/lib64/ocaml/dynlink/META
findlib: [WARNING] Package bigarray has multiple definitions in /home/choeger/.opam/system/lib/bigarray/META, /usr/lib64/ocaml/bigarray/META
findlib: [WARNING] Package unix has multiple definitions in /home/choeger/.opam/system/lib/unix/META, /usr/lib64/ocaml/unix/META
findlib: [WARNING] Package camlp4 has multiple definitions in /home/choeger/.opam/system/lib/camlp4/META, /usr/lib64/ocaml/camlp4/META
findlib: [WARNING] Package threads has multiple definitions in /home/choeger/.opam/system/lib/threads/META, /usr/lib64/ocaml/threads/META

我对opam的理解是，支持在不同位置进行多个安装，但这些警告会使任何编译输出变得混乱。

有没有办法告诉findlib我知道这些其他的安装，并且不打印这些无用的警告？

编辑:因为我被要求提供我的ocamlfind输出：

choeger@daishi ~ % ocamlfind printconf
    Effective configuration:
    Configuration file:
        /home/choeger/.opam/system/lib/findlib.conf
    Search path:
        /home/choeger/.opam/system/lib
        /usr/lib64/ocaml
    Packages will be installed in/removed from:
        /home/choeger/.opam/system/lib
    META files will be installed in/removed from:
        the corresponding package directories
    The standard library is assumed to reside in:
        /usr/lib64/ocaml
    The ld.conf file can be found here:
        /usr/lib64/ocaml/ld.conf

Answer 1

我刚刚找到了问题的解决方案：

 sudo yum remove ocaml-findlib

显然，这个包附带了所有这些双重定义的ocaml库。我仍然认为opam应该能够处理这种情况(IMO更具体的包管理器对于更不具体的安装应该总是明智的)，但opam还不是由fedora打包的，所以类似这样的事情应该是可以预期的。至少这个恼人的警告已经消失了。