[英]Cannot build opencv 2.4 on a 64 bit mac for C++ project in Xcode
在浏览了很多并尝试了我在SO上找到的每个选项后,我对如何在我的Mac上加载用于架构x86_64的OpenCV库感到困惑。 这里有一些背景信息:
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x86_64架构的正确库。
我已经查看了本教程以及其他人发布的步骤,如下所示:
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”时失败,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:
所有这一切都让我感到困惑,因为我觉得我只需要一个.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,它们不会显示在列表中。 相反,这就是我所看到的:
Aldo,一直关注这个MacPorts教程 。
你考虑过使用macports吗? 它有opencv 2.4.8 可用 。
所以在安装了macports之后 ,你所经历过的所有废话都被简化为:
$ sudo port selfupdate
$ sudo port install opencv
如果你想要一个或两个变体 ,例如OpenCL和Python支持,那么那将是:
$ sudo port install opencv +opencl +python27
以及二进制文件/库/将安装到/opt/local/...
。
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