CMake可以在Mac OS X上指定基本SDK吗? [英] Can CMake specify the base SDK on Mac OS X?

问题描述

有人知道如何指定要使用CMake构建的Mac OS X SDK吗?我已经搜索了cmake mac "base sdk"，但是没有发现任何问题.

Does anyone know how to do specify the Mac OS X SDK to build against with CMake? I have searched for cmake mac "base sdk" but this turned up nothing.

我正在使用CMake生成Unix makefile.

I am using CMake to generate Unix makefiles.

在我的10.6安装中，我看到/Developer/SDKs具有以下内容:

On my 10.6 install, I see that /Developer/SDKs has the following:

• MacOSX10.4u.sdk
• MacOSX10.5.sdk
• MacOSX10.6.sdk

也许我可以让CMake以某种方式将这些路径之一传递给编译器?

Perhaps I can get CMake to pass one of these paths to the compiler somehow?

此外，我的10.7安装仅具有:

Also, my 10.7 install only has:

• MacOSX10.6.sdk
• MacOSX10.7.sdk

这是否意味着它只能针对这些平台构建?

Does this mean that it can only build for these platforms?

该死，我刚刚意识到实际上我没有在使用Xcode，所以这可能会影响一些答案.另外，我现在正在尝试使用Mac OS X 10.8开发人员预览版(有一些奇怪的结果，请参见我的答案).

Damn, I just realised that actually I'm not using Xcode -- so this may affect some answers. Also, I am now trying with Mac OS X 10.8 developer preview (with some weird results, see my answer).

推荐答案

在尝试了sakra的有效答案(就CMake而言，该行为是有效的)后，我进行了一次挖掘，发现如果我指定了--sysroot标记到编译器，似乎使用了正确的SDK！

After trying sakra's valid answer (valid as far as CMake is suposed to behave) unsucessfully, I had a dig around and found that if I specify the --sysroot flag to the compiler, it seems to use the correct SDK!

但是，现在我在针对10.7(在10.8中没有看到)进行编译时看到此错误:

However, I now see this error when I compile against 10.7 (which I don't see with 10.8):

Undefined symbols for architecture i386:
  "_NXArgv", referenced from:
      execSelfNonDaemonized() in libarch.a(CArchDaemonUnix.o)
      CArchDaemonUnix::daemonize(char const*, int (*)(int, char const**)) in libarch.a(CArchDaemonUnix.o)
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [bin/synergyc] Error 1
make[1]: *** [src/cmd/synergyc/CMakeFiles/synergyc.dir/all] Error 2
make: *** [all] Error 2

注意:CArchDaemonUnix是Synergy(我正在研究的一个开源项目)中的一类.

Note: CArchDaemonUnix is a class in Synergy (an open source project I'm working on).

刚在我的10.6安装中尝试过此操作，并且在尝试为10.5进行编译时遇到链接器错误-事实证明，您还需要指定MACOSX_DEPLOYMENT_TARGET环境变量！

Just tried this on my 10.6 install, and I was getting a linker error when trying to compile for 10.5 -- turns out you also need to specify the MACOSX_DEPLOYMENT_TARGET environment variable!

无论如何，这是我在Mountain Lion(OSX 10.8)上运行以编译为10.7时正在做的事情:

Anyway, here's what I'm doing when running on Mountain Lion (OSX 10.8) to compile for 10.7:

命令行:

MACOSX_DEPLOYMENT_TARGET=10.7

cmake -G "Unix Makefiles" -DCMAKE_OSX_SYSROOT=/Developer/SDKs/MacOSX10.7.sdk/ -DCMAKE_OSX_DEPLOYMENT_TARGET=10.7 ../..

CMakeLists.txt:

CMakeLists.txt:

set(CMAKE_CXX_FLAGS "--sysroot ${CMAKE_OSX_SYSROOT} ${CMAKE_CXX_FLAGS}")

我希望这对某人有帮助！ :-)

I hope this helps someone! :-)

这篇关于CMake可以在Mac OS X上指定基本SDK吗?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！