Question

我正在尝试使用Mountain Lion 10.8上的xcode 4.5编译一个使用opencv的项目，我密切关注此链接上的过程：

Compile OpenCV (2.3.1+) for OS X Lion / Mountain Lion with Xcode

这是我遵循的顺序;

使用ports安装opencv：sudo port install opencv configure.compiler = llvm-gcc-4.2
打开Xcode并创建一个新项目（使用c ++的命令行应用程序）。
将“/ opt / local / lib / **”路径添加到“库搜索路径”
添加了任何libopencv_。 Dylib到一个新组
将“/ opt / local / include / **”路径添加到“标题搜索路径”

每次我尝试编译xcode时都会出现此错误：

In file included from /Users/oliver/OpenCVHelloWorld/main.cpp:12:
In file included from /opt/local/include/opencv2/opencv.hpp:46:
In file included from /opt/local/include/opencv2/core/core_c.h:47:
/opt/local/include/opencv2/core/types_c.h:322:17: error: use of undeclared identifier 'lrint'
    return (int)lrint(value);
                ^
/opt/local/include/opencv2/core/types_c.h:742:5: error: use of undeclared identifier 'assert'
    assert( (unsigned)CV_MAT_DEPTH(type) <= CV_64F );
    ^
/opt/local/include/opencv2/core/types_c.h:773:5: error: use of undeclared identifier 'assert'
    assert( (unsigned)row < (unsigned)mat->rows &&
    ^
/opt/local/include/opencv2/core/types_c.h:780:9: error: use of undeclared identifier 'assert'
        assert( type == CV_64FC1 );
        ^
/opt/local/include/opencv2/core/types_c.h:790:5: error: use of undeclared identifier 'assert'
    assert( (unsigned)row < (unsigned)mat->rows &&
    ^
/opt/local/include/opencv2/core/types_c.h:797:9: error: use of undeclared identifier 'assert'
        assert( type == CV_64FC1 );
        ^
In file included from /Users/oliver/OpenCVHelloWorld/main.cpp:12:
In file included from /opt/local/include/opencv2/opencv.hpp:46:
/opt/local/include/opencv2/core/core_c.h:1118:5: error: use of undeclared identifier 'assert'
    assert( _elem->flags >= 0 /*&& (elem->flags & CV_SET_ELEM_IDX_MASK) < set_header->total*/ );
    ^
In file included from /Users/oliver/OpenCVHelloWorld/main.cpp:12:
In file included from /opt/local/include/opencv2/opencv.hpp:47:
In file included from /opt/local/include/opencv2/core/core.hpp:56:
In file included from /usr/include/c++/4.2.1/algorithm:64:
In file included from /usr/include/c++/4.2.1/bits/stl_algobase.h:70:
In file included from /usr/include/c++/4.2.1/iosfwd:44:
/usr/include/c++/4.2.1/bits/c++locale.h:76:5: error: use of undeclared identifier 'va_start'
    va_start(__args, __fmt);
    ^
/usr/include/c++/4.2.1/bits/c++locale.h:84:5: error: use of undeclared identifier 'va_end'
    va_end(__args);
    ^
/usr/include/c++/4.2.1/cstdarg:54:20: note: expanded from macro 'va_end'
#define va_end(ap) va_end (ap)
                   ^
In file included from /Users/oliver/OpenCVHelloWorld/main.cpp:12:
In file included from /opt/local/include/opencv2/opencv.hpp:47:
In file included from /opt/local/include/opencv2/core/core.hpp:56:
In file included from /usr/include/c++/4.2.1/algorithm:64:
In file included from /usr/include/c++/4.2.1/bits/stl_algobase.h:70:
In file included from /usr/include/c++/4.2.1/iosfwd:48:
In file included from /usr/include/c++/4.2.1/bits/postypes.h:45:
In file included from /usr/include/c++/4.2.1/cwchar:51:
/usr/include/c++/4.2.1/ctime:65:11: error: no member named 'clock_t' in the global namespace
  using ::clock_t;
        ~~^
/usr/include/c++/4.2.1/ctime:67:11: error: no member named 'tm' in the global namespace
  using ::tm;
        ~~^
/usr/include/c++/4.2.1/ctime:69:11: error: no member named 'clock' in the global namespace
  using ::clock;
        ~~^
/usr/include/c++/4.2.1/ctime:70:11: error: no member named 'difftime' in the global namespace
  using ::difftime;
        ~~^
/usr/include/c++/4.2.1/ctime:71:11: error: no member named 'mktime' in the global namespace
  using ::mktime;
        ~~^
/usr/include/c++/4.2.1/ctime:72:11: error: no member named 'time' in the global namespace
  using ::time;
        ~~^
/usr/include/c++/4.2.1/ctime:73:11: error: no member named 'asctime' in the global namespace
  using ::asctime;
        ~~^
/usr/include/c++/4.2.1/ctime:74:11: error: no member named 'ctime' in the global namespace
  using ::ctime;
        ~~^
/usr/include/c++/4.2.1/ctime:75:11: error: no member named 'gmtime' in the global namespace
  using ::gmtime;
        ~~^
/usr/include/c++/4.2.1/ctime:76:11: error: no member named 'localtime' in the global namespace
  using ::localtime;
        ~~^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.

我试图将编译器更改为LLVM GCC 4.2编译器，但没有运气。有人可以告诉我使用opencv Mountain Lion和Xcode 4.5在xcode上构建项目的确切步骤吗？

Answer 1

如果无法访问您的代码，我无法说明这是否是一个完整的解决方案，但是，为了解决您的问题而没有一个名为......＆＃34;编译错误，您可以尝试替换＆＃34; / opt / local / lib＆＃34; for＆＃34; / opt / local / lib / **＆＃34;通过双击＆＃34;标题搜索路径＆＃34;字段并选择＆＃34;非递归＆＃34; XCode＆＃34;构建设置＆＃34;下的选项＆GT; ＆＃34;搜索路径＆＃34; ＆GT; ＆＃34;标题搜索路径＆＃34;。

您还可以在导航到＆＃34;构建设置＆＃34;之后尝试重新编译。＆GT; ＆＃34; Apple LLVM编译器4.2 - 语言＆＃34; ＆GT; ＆＃34; C ++标准库＆＃34;，并选择＆＃34; libstdc ++（GNU C ++标准库）＆＃34;而不是XCode 4.5的默认＆＃34; libc ++（支持C ++ 11的LLVM C ++标准库）＆＃34;。

Answer 2

我会使用不同的安装命令：

sudo port install tbb
sudo port install opencv +debug +eigen +python27 +qt4 +tbb

eigen和qt4是可选的，tbb是相当必要的，因为opencv在存在时大量使用tbb进行多线程处理。换句话说，没有tbb，opencv要慢得多。

我不会手动指定编译器。我记得那对我不起作用。

Answer 3

确保将其编译为c ++，将m文件重命名为mm

Xcode 4.5上的OpenCV 2.4.3

3 个答案: