c++ - 无法在 64 位 mac 上为 Xcode 中的 C++ 项目构建 opencv 2.4

Question

环顾四周并尝试了我在 SO 上找到的每个选项后，我对如何在我的 Mac 上加载架构 x86_64 的 OpenCV 库感到有点困惑。下面是一些背景信息:

第一个文件夹包含 Android SDK。第二个是iPhone框架，它使用i386和armv7架构。

现在，我想在 Xcode 中创建一个简单的“Hello World”C++ 应用程序，它需要适合 x86_64 架构的正确库。

我看过这个tutorial以及其他人发布的步骤如下:

• mkdir 构建
• 光盘构建
• cmake -G "Unix Makefiles"..
• 制作-j8
• sudo 进行安装

对于所有版本(OpenCV-2.4.6.1 除外)，该过程在“make -j8”处失败。我每次都得到同样的错误:

Linking CXX shared library ../../lib/libopencv_core.dylib

Undefined symbols for architecture x86_64:

  "___sincos_stret", referenced from:

      cv::RotatedRect::points(cv::Point_<float>*) const in matrix.cpp.o

      cv::RotatedRect::boundingRect() const in matrix.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[2]: *** [lib/libopencv_core.2.4.3.dylib] Error 1

make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2

make[1]: *** Waiting for unfinished jobs....

[ 28%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfThreading.cpp.o

[ 28%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTileDescriptionAttribute.cpp.o

[ 28%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTiledInputFile.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTiledMisc.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTiledOutputFile.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTiledRgbaFile.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTileOffsets.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTimeCode.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfTimeCodeAttribute.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfVecAttribute.cpp.o

[ 29%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfVersion.cpp.o

[ 29%] [ 30%] Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfWav.cpp.o

Building CXX object 3rdparty/openexr/CMakeFiles/IlmImf.dir/IlmImf/ImfZipCompressor.cpp.o

Linking CXX static library ../lib/libIlmImf.a

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThread.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThreadMutex.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThreadSemaphore.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThreadSemaphorePosixCompat.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThread.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThreadMutex.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThreadSemaphore.cpp.o) has no symbols

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: ../lib/libIlmImf.a(IlmThreadSemaphorePosixCompat.cpp.o) has no symbols

[ 30%] Built target IlmImf

make: *** [all] Error 2

pdls-mbp:build pdl$ 

使用 OpenCV-2.4.6.1，进程在“sudo make install”处失败，我收到以下错误:

Linking CXX shared library ../../lib/libopencv_core.dylib

Undefined symbols for architecture x86_64:

  "___sincos_stret", referenced from:

      cv::RotatedRect::points(cv::Point_<float>*) const in matrix.cpp.o

      cv::RotatedRect::boundingRect() const in matrix.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[2]: *** [lib/libopencv_core.2.4.6.dylib] Error 1

make[1]: *** [modules/core/CMakeFiles/opencv_core.dir/all] Error 2

make: *** [all] Error 2

Lucys-MacBook-Pro:build pdl$ 

当我使用 Homebrew 安装 OpenCV 时，opencv 安装在 use/local/opt/opencv 中，我可以看到 lib 文件夹下的所有 dylib 文件:

所有这些完全让我感到困惑，因为我认为我只需要一个 .a 库文件，不是吗？

我在/usr/local/Cellar/opencv/2.4.6.1/lib 中找到了与 HomeBrew 一起安装的 dylib 文件，但是当我尝试选择要添加的框架和库时，它们没有显示在列表中。相反，这就是我所看到的:

Aldo，一直在关注这个MacPorts tutorial .

Answer 1

您是否考虑过使用 macports ？它有 opencv 2.4.8 available .

所以在installing macports之后，所有你经历过的废话，都被简化为:

$ sudo port selfupdate
$ sudo port install opencv

如果您想要一个或两个变体，例如 OpenCL 和 Python 支持，那么将是:

$ sudo port install opencv +opencl +python27

二进制文件/库/任何东西都将安装到 /opt/local/...。