在Xcode新项目中启用LLVM + Clang会导致链接错误 [英] Enable LLVM + Clang in Xcode new project causes linking errors

问题描述

我创建了一个新的Cocoa应用程序，并将其添加到Xcode中。转到目标，在目标中执行获取信息并启用C / C ++编译器版本到LLVM编译器1.0.2并按Build。

我得到：

  ld：warning：directory'/usr/lib/gcc/i686-apple-darwin10/4.2.1/ x86_64'以下-L未找到
 ld：warning：目录'/usr/lib/gcc/i686-apple-darwin10/4.2.1/x86_64'以下-L未找到
 ld：warning：目录'/usr/lib/i686-apple-darwin10/4.2.1'following -L not found 
 ld：warning：directory'/usr/lib/gcc/i686-apple-darwin10/4.2.1'following  - L未找到
 ld：warning：目录'/usr/lib/gcc/i686-apple-darwin10/4.2.1'以下-L未找到
 ld：warning：目录'/ usr / lib / gcc / i686-apple-darwin10 / 4.2.1 /../../../ i686-apple-darwin10 / 4.2.1'following -L not found 
 ld：warning：directory'/ usr / lib /gcc/i686-apple-darwin10/4.2.1/../../ ..'以下-L未找到
 ld：没有为-lgcc找到库
命令/ Developer / usr / bin / clang失败，退出代码1 
  

任何人都能帮助我？ LLVM + GCC前端虽然工作，但我真的想使用Clang（LLVM编译器1.0.2）。新的XCode安装，新的Cocoa项目仍然有这个问题。

解决方案

我通过创建两个符号链接修复它

/ usr / lib / gcc - > / Developer / usr / lib / gcc

和

/ usr / lib / i686-apple-darwin10 - > / Developer / usr / lib / i686-apple-darwin10 /

I've done a complete clean uninstall of XCode and deleted the prefs and deleted complete /Developer folder and reinstalled XCode again.

I create a new Cocoa application, go over to Target, doing a "Get info" in the target and enable "C / C++ compiler version" to "LLVM compiler 1.0.2" and press Build.

I get:

ld: warning: directory '/usr/lib/gcc/i686-apple-darwin10/4.2.1/x86_64' following -L not found
ld: warning: directory '/usr/lib/gcc/i686-apple-darwin10/4.2.1/x86_64' following -L not found
ld: warning: directory '/usr/lib/i686-apple-darwin10/4.2.1' following -L not found
ld: warning: directory '/usr/lib/gcc/i686-apple-darwin10/4.2.1' following -L not found
ld: warning: directory '/usr/lib/gcc/i686-apple-darwin10/4.2.1' following -L not found
ld: warning: directory '/usr/lib/gcc/i686-apple-darwin10/4.2.1/../../../i686-apple-darwin10/4.2.1' following -L not found
ld: warning: directory '/usr/lib/gcc/i686-apple-darwin10/4.2.1/../../..' following -L not found
ld: library not found for -lgcc
Command /Developer/usr/bin/clang failed with exit code 1

Anyone able to help me here? LLVM + GCC frontend does work though but I really would like to use Clang (LLVM compiler 1.0.2). New XCode install, new Cocoa project still have this issue.

解决方案

I fixed it by creating two symbolic links

/usr/lib/gcc -> /Developer/usr/lib/gcc

and

/usr/lib/i686-apple-darwin10 -> /Developer/usr/lib/i686-apple-darwin10/

Thanks for answering guys.

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