Macos 在Ocaml中使用ocamlbuild构建llvm绑定

我可以构建和安装LLVM，ocaml绑定库位于

/usr/local/LLVM/lib/ocaml

目录中。

当在示例（）中构建时，我尝试使用指令中的

ocamlbuild toy.byte

获取错误消息

a@prosseek Chapter3> ocamlbuild toy.byte
Finished, 0 targets (0 cached) in 00:00:00.
+ /usr/local/bin/ocamlc.opt -c -o codegen.cmo codegen.ml
File "codegen.ml", line 5, characters 0-9:
Error: Unbound module Llvm
Command exited with code 2.
Compilation unsuccessful after building 10 targets (9 cached) in 00:00:00.

似乎找不到LLVM库。如何教ocaml找到一个

我有

myocamlbuild.ml

来获取此内容：

open Ocamlbuild_plugin;;
ocaml_lib ~extern:true "llvm";;
ocaml_lib ~extern:true "llvm_analysis";;

flag ["link"; "ocaml"; "g++"] (S[A"-cc"; A"g++"]);;

我还尝试使用

ocamlbuild toy.byte-pkg llvm

来获取此错误

Warning: tag "package" does not expect a parameter, but is used with parameter "llvm"
+ /usr/local/bin/ocamlc.opt -c bindings.c
clang: warning: argument unused during compilation: '-fno-defer-pop'
+ /usr/local/bin/ocamlc.opt llvm.cma llvm_analysis.cma llvm_executionengine.cma llvm_target.cma llvm_scalar_opts.cma -cc g++ -I /Users/smcho/.opam/system/lib/llvm/. '-ccopt -lstdc++' llvm.cma ast.cmo codegen.cmo token.cmo lexer.cmo parser.cmo toplevel.cmo toy.cmo bindings.o -o toy.byte
/usr/local/bin/ocamlc.opt: unknown option `-ccopt -lstdc++'.
Usage: ocamlc <options> <files>
Options are:
.. 

警告：标记“package”不需要参数，但与参数“llvm”一起使用
+/usr/local/bin/ocamlc.opt-c bindings.c
叮当声：警告：编译期间未使用参数：'-fno defer pop'
+/usr/local/bin/ocamlc.opt llvm.cma llvm\u analysis.cma llvm\u executionengine.cma llvm\u target.cma llvm\u scalar\u opts.cma-cc g++-I/Users/smcho/.opam/system/lib/llvm/'-ccopt-lstdc++'llvm.cma ast.cmo codegen.cmo token.cmo lexer.cmo parser.cmo toplevel.cmo toy.cmo bindings.o-o toy.byte
/usr/local/bin/ocamlc.opt：未知选项“-ccopt-lstdc++”。
用法：ocamlc
选项包括：
.. 

---

我使用Mac OS X 10.7，并使用brew安装了ocaml

要使用

ocamlbuild

的

-package

选项，您必须传递附加的

-use-ocamlfind

选项：

ocamlbuild-use-ocamlfind toy.byte-package llvm

让我们结束讨论，将讨论转移到下一个关于opam的话题）导出ocamlib现在是一种黑客行为）