二郎山NIF测试 - OS X狮子 [英] Erlang NIF Test -- OS X Lion

问题描述

我试图编译从二郎山NIF测试（ HTTP：// WWW。 erlang.org/doc/man/erl_nif.html ）在Mac OS X狮子。我不能让它编译。我缺少一个编译器标志？这是我得到的错误：

I'm trying to compile the NIF Test from Erlang (http://www.erlang.org/doc/man/erl_nif.html) on Mac OS X Lion. I can't get it to compile. Am I missing a compiler flag? Here's the error I get:

Computer:~ me $ gcc -fPIC -shared -o niftest.so niftest.c -I /usr/local/Cellar/erlang/R14B02/lib/erlang/usr/include/
Undefined symbols for architecture x86_64:
  "_enif_make_string", referenced from:
      _hello in ccXfh0oG.o
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status

我也试图与 -m32 ，但它说，没有i386架构无论是。

I've also tried this with -m32 but it says there's no i386 architecture either.

谢谢！

推荐答案

64位二郎，对我来说了以下工作：

for 64-bit Erlang, the following works for me:

gcc -undefined dynamic_lookup -dynamiclib niftest.c -o niftest.so \
    -I /usr/local/Cellar/erlang/R14B02/lib/erlang/usr/include

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