如何定义在 Mac OS X 上使用哪个库？
我无法让程序运行，我有一种感觉，因为 Mac OS X 决定使用错误的库。我希望它使用 SDL_image，但我认为它选择使用 SDL-1.2。有没有办法强制它使用SDL_image？如果有帮助的话，我正在尝试运行一个用 Go 程序语言编写的程序。
我尝试修改 DYLD_LIBRARY_PATH 变量，因为我怀疑 dyld 可能与它有关，但它不起作用。我发现的与该问题相关的所有其他内容都只是错误日志，没有说明如何修复它。
objc[96907]: Class SDLTranslatorResponder is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL-1.3.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDLTranslatorResponder is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzView is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindowDelegate is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindow is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDLTranslatorResponder is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzView is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindowDelegate is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindow is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
I'm having trouble getting a program to work, and I have a feeling it is because Mac OS X has decided to use the wrong library. I want it to use SDL_image, but I think its choosing to use SDL-1.2 instead. Is there a way to force it to use SDL_image? If it helps at all, I'm trying to run a program written in the Go program language.
I've tried modifying the DYLD_LIBRARY_PATH variable because I suspect dyld might have something to do with it, but it didn't work. Everything else I've found relating to the problem is just error logs that say nothing about how to fix it.
objc[96907]: Class SDLTranslatorResponder is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL-1.3.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDLTranslatorResponder is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzView is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindowDelegate is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindow is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_ttf-2.0.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDLTranslatorResponder is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzView is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindowDelegate is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
objc[96907]: Class SDL_QuartzWindow is implemented in both /opt/local/lib/libSDL-1.2.0.dylib and /usr/local/lib/libSDL_image-1.2.0.dylib. One of the two will be used. Which one is undefined.
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您是否尝试过在可执行文件上使用 install_name_tool -change 以使库引用具有绝对路径？
您还可以尝试使用 install_name_tool 更改可执行文件的 rpath 并删除 /opt/local（如果存在）。或者，如果没有 rpath，您可以尝试添加 /usr/local/lib 并更改库引用以使用 @rpath/ （请参阅“man dyld”和“man install_name_tool”）
您也可以从 MacPorts 切换到 Homebrew 那么你所有的开源软件都位于 /usr/local 下，你就不会遇到此类问题。
Have you tried using install_name_tool -change on your executable to make the library references have absolute path?
You could also try using install_name_tool to change the rpath for the executable and remove /opt/local if it is there. Or if there is no rpath you could try adding /usr/local/lib and -change the library references to use @rpath/ (see "man dyld" and "man install_name_tool")
You could also switch from MacPorts to Homebrew then all your open-source software lives under /usr/local and you don't get into this sort of problem.