Question

我切换到我的mac并且不再有这个问题，但有一个类似的问题。 OCaml llvm "Unbound module ExecutionEngine"

我正试图让它发挥作用： https://github.com/llvm-mirror/llvm/tree/master/examples/OCaml-Kaleidoscope/Chapter7

来自本教程 http://llvm.org/docs/tutorial/OCamlLangImpl7.html

（我99％肯定这两个人是同一个人）

在解决了几个问题之后，我已经达到了过去几个小时的绊脚石

 me@mypc:~/Desktop/llvm-master/examples/OCaml-Kaleidoscope/Chapter7$ ocamlbuild -use-ocamlfind toy.byte -package llvm llvm_executionengine
    Finished, 0 targets (0 cached) in 00:00:00.
    File "_tags", line 4, characters 41-53:
    Warning: the tag "use_bindings" is not used in any flag declaration, so it will have no effect; it may be a typo. Otherwise use `mark_tag_used` in your myocamlbuild.ml to disable this warning.
    + ocamlfind ocamlc -c -package llvm -o toplevel.cmo toplevel.ml
    File "toplevel.ml", line 6, characters 5-24:
    Error: Unbound module LlvmExecutionEngine
    Command exited with code 2.
    Compilation unsuccessful after building 13 targets (12 cached) in 00:00:00.

我很确定llvm_executionengine是正确的包，好像我尝试了别的东西，它说它不知道它是什么包。

以下是带有错误行的前几行代码：

 (*===----------------------------------------------------------------------===
 * Top-Level parsing and JIT Driver
 *===----------------------------------------------------------------------===*)

    open Llvm
    open Llvm_executionengine

    (* top ::= definition | external | expression | ';' *)
    let rec main_loop the_fpm the_execution_engine stream =
      match Stream.peek stream with
      | None -> ()

任何帮助都是超级的！

我尝试了tobiasBora的第一部分答案并得到了这个结果：

$ ocamlbuild -use-ocamlfind test.byte -package llvm
Finished, 0 targets (0 cached) in 00:00:00.
File "_tags", line 4, characters 41-53:
Warning: the tag "use_bindings" is not used in any flag declaration, so it will have no effect; it may be a typo. Otherwise use `mark_tag_used` in your myocamlbuild.ml to disable this warning.
Solver failed:
  Ocamlbuild cannot find or build test.ml.  A file with such a name would usually be a source file.  I suspect you have given a wrong target name to Ocamlbuild.
Compilation unsuccessful after building 0 targets (0 cached) in 00:00:00.

Answer 1

首先尝试使用

进行编译

ocamlbuild -use-ocamlfind toy.byte -package llvm

（请注意我从你的例子中移除了＆＃34; llvm_executionengine＆＃34;）

如果它仍然不起作用，因为它对我有用，试试这个：首先我正在运行Ocaml 4.03.0：

opam switch 4.03.0

然后我需要安装llvm：

opam depext llvm.3.8
opam install llvm

（如果未安装depext，它会自动安装它。然后它将自动运行此code ）

然后我用：

编译你的代码

ocamlbuild -use-ocamlfind toy.byte -package llvm

（请注意我已删除＆＃34; llvm_executionengine＆＃34;在您的示例中）

你可以注意到一个错误使llvm 3.8在旧版本的ocaml中无法使用。如果您仍有问题，请尝试安装3.5版本，它可能会解决一些问题：

sudo apt-get install llvm-3.5 llvm-3.5-dev

ocaml llvm万花筒教程“Unbound module LlvmExecutionEngine”

1 个答案: