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I've just upgraded to Xcode 5 beta with the April 15 2013 commandline tools and hit the following warning when running a cmake build during the standard CMakeTestCCompiler.cmake attempt to compile a simple test program:

cmake -version
cmake version 2.8.11.2

ld: building for MacOSX, but linking against dylib built for iOS Simulator file '/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/usr/lib/libSystem.dylib' for architecture i386

lipo -info /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk/usr/lib/libSystem.dylib
Non-fat file: libSystem.dylib is architecture: i386

The compile step is:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk -o /Users/temp/testCCompiler.c.o -c /Users/temp/testCCompiler.c

lipo -info /Users/temp/testCCompiler.c.o 
Non-fat file: testCCompiler.c.o is architecture: i386

The link step is:

/usr/local/bin/cmake -E cmake_link_script /Users/temp/link.txt --verbose=1

where link.txt contains:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.0.sdk -Wl,-headerpad_max_install_names /Users/temp/testCCompiler.c.o -o testCCompiler

It seems that both testCCompiler.c.o and libSystem.dylib are i386, i386 is specified in link.txt, and i386 is the right architecture for the simulator so i'm not sure why it thinks it is building for MacOSX. Perhaps a commandline option is wrong :(.

thanks for any help!

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2 回答 2

24

问题是 Xcode 5 用 clang 替换了 gcc 并添加了一个“-triple”选项，将 OSX 指定为目标。如果在两个 gcc 命令行上都传递“-miphoneos-version-min=7.0”，它就可以工作。如果将“--verbose”传递给 gcc，则可以看到 clang 命令行。还需要添加到 Xcode 5 的 PATH 以便 cmake 可以找到必要的工具：export PATH=/Applications/Xcode5-DP6.app/Contents/Developer/Toolchains/XcodeDefault.xct‌​oolchain/usr/bin:/Applications /Xcode5-DP6.app/Contents/Developer/usr/bin:$PATH 这些都不是官方的..但到目前为止对我有用。

于 2013-10-21T21:55:47.950 回答
1

在您的 client.app 上运行此评论：

export PATH=/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xct‌oolchain/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:$PATH
于 2014-03-09T03:49:55.003 回答