Run my program on a different computer?

skizzik · 29th October 2010, 09:33

I have created a program in Qt Creator on a mac and now I need to run it on a different computer, which don't have Qt on it. How can I rebuild the program so it can be used on any mac computer?

A related problem: When I run the program from inside Qt Creator, it works fine. But if i try to start it from the app file on the computer it doesn't work, problems loading a dylib file. I had the same problem from inside Qt before but solved it by specify the permanent directory where the file was located in the running settings in Qt Creator. How can i fix this?

**lyuts** · 29th October 2010, 12:15

In order for the application to run on another computer you need to deploy Qt libraries on it. On the other hand you can link your application against static Qt libs, so there will be no need to deploy Qt to the computer where you are going to run your application (but this increases the size of your binary).

As for your issue with running and application outside Qt Creator, then the reason why that happens is that Qt Creator know where the libs are, but the environment you are running your application in doesn't. So, try to add the paths to Qt libs to LD_LIBRARY_PATH environment variable.

skizzik · 29th October 2010, 12:25

1) How do I know which Qt libraries I have to deploy? But I think the second variant is probably better in this case (don't know yet, and wanna learn both ways for the future) but how do I link it against static Qt libs? Do I have to reinstall Qt itself?

2) I have set "DYLD_LIBRARY_PATH" to "/opt/local/lib" under Run Settings -> Run Environments and that works when started from Qt. Adding "LD_LIBRARY_PATH" gives the same result.

**lyuts** · 29th October 2010, 14:10

Originally Posted by skizzik

1) How do I know which Qt libraries I have to deploy? But I think the second variant is probably better in this case (don't know yet, and wanna learn both ways for the future) but how do I link it against static Qt libs? Do I have to reinstall Qt itself?

2) I have set "DYLD_LIBRARY_PATH" to "/opt/local/lib" under Run Settings -> Run Environments and that works when started from Qt. Adding "LD_LIBRARY_PATH" gives the same result.

1) On Unix/Linux usually ldd is used. As for MacOS then Google says it is otool.
2) Google suggests man dyld.

I'm not being rude, I don't any experience with MacOS and didn't notice that you were using it in your original post.