Set file permissions/Execute program on another mac

[oyvind...@gmail.com]

Hi everyone!

I'm having a problem with an application I'm making. It is a simple chat program written in go (obviously) and it runs in the terminal. Now, I want my laptop to be the server and let the client program run on two different macs (for example). So I built the client program on my laptop and tried to run it on the other one, but in the terminal I get "Permission denied". 

1. Can I make changes on the source code to give the program proper permissions to run, or do I have to do it manually/set user permissions on every computer trying to run my program? Regarding the first alternative, I am aware of the "os"-package with FileMode, I just dont know how to use it correctly... :/

2. Both macs have intel cpu, but one is core 2 duo and the other sandy bridge. Is this a problem?

I hope I didn't post in wrong thread, and if so hope some of you can point my in the right direction.

Thanks!

-Ø

[Tamás Gulácsi]

How did you distribute the binary?
Executable permission bit has been unset.

[oyvind...@gmail.com]

Sorry, I don't quite understand your question. What I did was to run "go build -o 'name' file.go" and then I tried to run this executable on the other mac. How can I reset this bit? :)

[Kevin Malachowski]

Usually it's just a call to the program "chmod" (I think macs have this program?)

Just run "chmod +x [executable]" and it will run if this is the problem.

[oyvind...@gmail.com]

It certainly fixed the "permission denied" problem, thank you! 

But the program still wont run on the other mac. Is this due to the different CPUs?

[Dave Cheney]

Can you provide some output when your program does not run on the other mac. When you say different CPU, can you explain what you mean ?

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[oyvind...@gmail.com]

Certainly, but I cant until I get home later this evening (currently at school studying for an exam, and I've only got my computer here;)). 

I have Intel Core 2 Duo while the other one Intel Sandy Bridge. They're both Intel, but I guess they've got different architectures (if I'm using that word right) and think that can cause a problem, but I'm not sure.

Thank you all for answering :)

I will post some output when I get home!

[Andy Balholm]

It's more likely to be different operating system versions than different CPUs. If you're linking against LibSystem on a Mountain Lion machine and trying to run on a Snow Leopard machine, I can imagine that the dynamic linker might not like the fact that LibSystem is older than the one you linked with.