如何在Mac OS X上的CMAKE项目中包含C静态库

问题描述

我想用C / C ++学习Core Foundation。
我使用JetBrains CLion使用CMAKE。

问题是 - 我不知道如何在Mac上的C / C ++ Makefile项目中包含合适的静态库。 p>

我需要将静态库CFNetwork链接到我的项目，以修复链接问题。

快速提示？

我的案例：

  #include< CFNetwork /CFNetwork.h> 
 #include< iostream> 
 
 int main（）{
 CFStringRef bodyString = CFSTR（）; //通常用于POST数据
 CFDataRef bodyData = CFStringCreateExternalRepresentation（kCFAllocatorDefault，
 bodyString，kCFStringEncodingUTF8，0）; 
 
 CFStringRef headerFieldName = CFSTR（X-My-Favorite-Field）; 
 CFStringRef headerFieldValue = CFSTR（Dreams）; 
 
 CFStringRef url = CFSTR（http://www.apple.com）; 
 CFURLRef myURL = CFURLCreateWithString（kCFAllocatorDefault，url，NULL）; 
 
 CFStringRef requestMethod = CFSTR（GET）; 
 CFHTTPMessageRef myRequest = 
 CFHTTPMessageCreateRequest（kCFAllocatorDefault，requestMethod，myURL，
 kCFHTTPVersion1_1）; 
 
 CFHTTPMessageSetBody（myRequest，bodyData）; 
 CFHTTPMessageSetHeaderFieldValue（myRequest，headerFieldName，headerFieldValue）; 
 CFDataRef mySerializedRequest = CFHTTPMessageCopySerializedMessage（myRequest）; 
 
 return 0; 
} 
  

我可以编译，但链接器输出以下内容：

 / Applications / CLion EAP.app/Contents/bin/cmake/bin/cmake--build / Users / nickolay / Library / Caches / clion10 / cmake / generated / 3546f185 / 3546f185 / Debug --target test001  -  -j 8 
扫描目标的依赖关系test001 
 [100％]构建CXX对象CMakeFiles / test001.dir / main.cpp。 o 
链接CXX可执行文件test001 
架构x86_64的未定义符号：
_CFHTTPMessageCopySerializedMessage，引用自：
 _main in main.cpp.o 
_CFHTTPMessageCreateRequest从：
 _main in main.cpp.o 
_CFHTTPMessageSetBody，引用自：
 _main in main.cpp.o 
_CFHTTPMessageSetHeaderFieldValue，引用自：
 _main in main.cpp.o 
_CFStringCreateExternalRepresentation，引用自：
 _main in main.cpp.o 
_CFURLCreateWithString，引用自：main.cpp中的
 _main。 o 
___CFConstantStringClassReference，引用自：
 main.cpp.o中的CFString 
 main.cpp.o中的CFString 
 main.cpp.o中的CFString 
 CFString in main.cpp.o 
 main.cpp.o中的CFString 
_kCFAllocatorDefault，引用自：
 _main in main.cpp.o 
_kCFHTTPVersion1_1，引用源自： 
 _main in main.cpp.o 
 ld：没有为架构x86_64找到符号
 clang：error：linker命令失败，退出代码1（使用-v查看调用）
 make [3]：*** [test001]错误1 
 make [2]：*** [CMakeFiles / test001.dir / all]错误2 
 make [1] * [CMakeFiles / test001.dir / rule]错误2 
 make：*** [test001]错误2 
  

感谢这个资源：

这是我的CMAKE文件看起来像和一切链接：

  cmake_minimum_required（VERSION 2.8.4）
项目（test001）
 
 set（CMAKE_CXX_FLAGS$ {CMAKE_CXX_FLAGS} -std = c ++ 11）
 
 set（SOURCE_FILES main.cpp）
 
 find_library（corefoundation_lib CoreFoundation）
 find_library（cfnetwork_lib CFNetwork）
 
 set（frameworks 
 $ {cfnetwork_lib} 
 $ {corefoundation_lib}）
 
 add_executable（test001 $ {SOURCE_FILES }）
 target_link_libraries（test001 $ {frameworks}）
  

I am trying to learn Core Foundation with C/C++.I use JetBrains CLion that uses CMAKE.

The problem is - I dunno how to include proper static libraries in C/C++ Makefile project on Mac.

I need to link static library CFNetwork to my project in order to fix linking problems.

Could you give me a quick hint?

My case:

#include <CFNetwork/CFNetwork.h>
#include <iostream>

int main() {
    CFStringRef bodyString = CFSTR(""); // Usually used for POST data
    CFDataRef bodyData = CFStringCreateExternalRepresentation(kCFAllocatorDefault,
        bodyString, kCFStringEncodingUTF8, 0);

    CFStringRef headerFieldName = CFSTR("X-My-Favorite-Field");
    CFStringRef headerFieldValue = CFSTR("Dreams");

    CFStringRef url = CFSTR("http://www.apple.com");
    CFURLRef myURL = CFURLCreateWithString(kCFAllocatorDefault, url, NULL);

    CFStringRef requestMethod = CFSTR("GET");
    CFHTTPMessageRef myRequest =
        CFHTTPMessageCreateRequest(kCFAllocatorDefault, requestMethod, myURL,
                kCFHTTPVersion1_1);

    CFHTTPMessageSetBody(myRequest, bodyData);
    CFHTTPMessageSetHeaderFieldValue(myRequest, headerFieldName, headerFieldValue);
    CFDataRef mySerializedRequest = CFHTTPMessageCopySerializedMessage(myRequest);

    return 0;
}

I can compile this but linker outputs me the following:

"/Applications/CLion EAP.app/Contents/bin/cmake/bin/cmake" --build /Users/nickolay/Library/Caches/clion10/cmake/generated/3546f185/3546f185/Debug --target test001 -- -j 8
Scanning dependencies of target test001
[100%] Building CXX object CMakeFiles/test001.dir/main.cpp.o
Linking CXX executable test001
Undefined symbols for architecture x86_64:
  "_CFHTTPMessageCopySerializedMessage", referenced from:
      _main in main.cpp.o
  "_CFHTTPMessageCreateRequest", referenced from:
      _main in main.cpp.o
  "_CFHTTPMessageSetBody", referenced from:
      _main in main.cpp.o
  "_CFHTTPMessageSetHeaderFieldValue", referenced from:
      _main in main.cpp.o
  "_CFStringCreateExternalRepresentation", referenced from:
      _main in main.cpp.o
  "_CFURLCreateWithString", referenced from:
      _main in main.cpp.o
  "___CFConstantStringClassReference", referenced from:
      CFString in main.cpp.o
      CFString in main.cpp.o
      CFString in main.cpp.o
      CFString in main.cpp.o
      CFString in main.cpp.o
  "_kCFAllocatorDefault", referenced from:
      _main in main.cpp.o
  "_kCFHTTPVersion1_1", referenced from:
      _main in main.cpp.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [test001] Error 1
make[2]: *** [CMakeFiles/test001.dir/all] Error 2
make[1]: *** [CMakeFiles/test001.dir/rule] Error 2
make: *** [test001] Error 2

解决方案

Finally resolved.

Thanks to this resource: http://raycast.net/clion-multiple-binaries

This is how my CMAKE file looks like and everything links:

cmake_minimum_required(VERSION 2.8.4)
project(test001)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES main.cpp)

find_library(corefoundation_lib CoreFoundation)
find_library(cfnetwork_lib CFNetwork)

set(frameworks
    ${cfnetwork_lib}
    ${corefoundation_lib})

add_executable(test001 ${SOURCE_FILES})
target_link_libraries(test001 ${frameworks})

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