Macos 10.6.8 (Snow Leopard) 上的本机工具链问题

发布于 2024-12-09 10:03:54 字数 1324 浏览 0 评论 0原文

下面是问题的描述。我将其全部标记为代码，以避免 StackOverflow 所做的隐式格式化。处理类似 Wiki 的标记语言是相当烦人的当我确切地知道自己想要如何格式化我的问题时。

I am dealing with a weird toolchain issue on Macos.
Here is what is going on :

 $ cat gmpz.c

    char foo ();

    int main ()
    {
    return foo();
    }

$ cat libmy.c

    char foo()
    {
    return 0;
    }

I run these commands :

$ gcc -c libmy.c 
$ gcc gmpz.c libmy.o
$ file ./a.out
./a.out: Mach-O 64-bit executable x86_64

So far it is all good. But here is the problem :

$ ar qv libmy.a libmy.o
ar: creating libmy.a
a - libmy.o

$ gcc gmpz.c libmy.a
ld: warning: in libmy.a, file was built for unsupported file format which
is not the architecture being linked (x86_64)
Undefined symbols:
  "_foo", referenced from:
      _main in ccpwg2Ju.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

Adding "-arch i386" to gcc flags doesn't change the final warning and the
unresolved symbol error (except that the name of the architecture becomes different).

The above example works fine on Linux. It seems like the basic ar
functionality is broken on my system.
I have Xcode 3.2.6

$ gcc --version
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)

$ ar --version
GNU ar (GNU Binutils) 2.21

Any ideas on resolving this issue are greatly appreciated.

原文

Below is the description of the issue.
I marked it all as a code to avoid the implicit formatting that StackOverflow does.
That is pretty annoying to have to deal with the Wiki-like markup language
when I know exactly myself how I want to format my question.

I am dealing with a weird toolchain issue on Macos.
Here is what is going on :

 $ cat gmpz.c

    char foo ();

    int main ()
    {
    return foo();
    }

$ cat libmy.c

    char foo()
    {
    return 0;
    }

I run these commands :

$ gcc -c libmy.c 
$ gcc gmpz.c libmy.o
$ file ./a.out
./a.out: Mach-O 64-bit executable x86_64

So far it is all good. But here is the problem :

$ ar qv libmy.a libmy.o
ar: creating libmy.a
a - libmy.o

$ gcc gmpz.c libmy.a
ld: warning: in libmy.a, file was built for unsupported file format which
is not the architecture being linked (x86_64)
Undefined symbols:
  "_foo", referenced from:
      _main in ccpwg2Ju.o
ld: symbol(s) not found
collect2: ld returned 1 exit status

Adding "-arch i386" to gcc flags doesn't change the final warning and the
unresolved symbol error (except that the name of the architecture becomes different).

The above example works fine on Linux. It seems like the basic ar
functionality is broken on my system.
I have Xcode 3.2.6

$ gcc --version
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)

$ ar --version
GNU ar (GNU Binutils) 2.21

Any ideas on resolving this issue are greatly appreciated.

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