在macports上用opencv編譯代碼

Question

我編譯的代碼已經通過macports安裝了opencv。但是，在運行我的生成文件時，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) 

這是否意味着這些庫都沒有鏈接？我能做些什麼呢？

Answer 1

的問題是，你正在編譯代碼的一個架構（可能x86_64的即英特爾64位）和你問的MacPorts與i386架構來構建，即32位

所以喲需要改變一個或另一個。

1）更改你的代碼 - 在編譯規則中將-arch x86_64添加到gcc的選項中。

2）卸載macports，然後重新安裝並在macports.conf文件中選擇所需的build_arch，並檢查默認情況下的universal_archs。