在macports上用opencv编译代码

Question

我编译的代码已经通过macports安装了opencv。但是，在运行我的生成文件时，我得到了

ld: warning: in /opt/local/lib/libopencv_core.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_imgproc.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_highgui.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_ml.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_video.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_features2d.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_calib3d.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_objdetect.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_contrib.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_legacy.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 
ld: warning: in /opt/local/lib/libopencv_flann.dylib, file was built for unsupported file format which is not the architecture being linked (i386) 

这是否意味着这些库都没有链接？我能做些什么呢？

Answer 1

的问题是，你正在编译代码的一个架构（可能x86_64的即英特尔64位）和你问的MacPorts与i386架构来构建，即32位

所以哟需要改变一个或另一个。

1）更改你的代码 - 在编译规则中将-arch x86_64添加到gcc的选项中。

2）卸载macports，然后重新安装并在macports.conf文件中选择所需的build_arch，并检查默认情况下的universal_archs。