golang on amazon linux OS

[gra...@gmail.com]

I have a quick noobie question.  I'm in devops engineer and I have a developer who has a go project that I'm trying to compile.

I downloaded the go binares on my mac OS and I was able to compile his project successfully. Good.

I compiled "go" myself on an AWS Amazon OS and I was able to compile his project successfully on an AWS Amazon OS with the go binaries that I compiled.  Good.

So far so good, but I figure I don't have to compile "go" unless I absolutely have to, so I tried:

"yum install golang" on an Amazon OS and tried to compile his project and this is the error that I got:

bash-4.1$ make
go install auth-api
# auth-api/dal

src/auth-api/dal/redis_token_provider.go:5: import /var/build/workspace/build-auth-api/pkg/linux_amd64/third_party/garyburd/redigo/redis.a: object is [linux amd64 go1.2 X:none] expected [linux amd64 go1.1.2 X:none]

Does this mean that the golang package that is being installed (version 1.1.2) is not compatible on this OS?

Notice the version mismatch:

object is  [linux amd64 go1.2 X:none]

expected [linux amd64 go1.1.2 X:none]

Thanks for the insight.  The workaround is easy enough for me to do (use the go binaries that I'm compiling), but I'm just curious about this error.

Thanks!

[Ian Lance Taylor]

On Fri, Dec 20, 2013 at 7:48 AM, <gra...@gmail.com> wrote:
>
> src/auth-api/dal/redis_token_provider.go:5: import
> /var/build/workspace/build-auth-api/pkg/linux_amd64/third_party/garyburd/redigo/redis.a:
> object is [linux amd64 go1.2 X:none] expected [linux amd64 go1.1.2 X:none]

This error message means that you are trying to use a Go 1.1.2
compiler to import a package compiled by Go 1.2. The answer is to
build everything with th same compiler.

Ian

[Alexander Gray II]

OK. Just making sure.  I ended up using a yum mirror that has Go 1.2 and all is well now.

Likewise, I could have used the Go binaries that I originally built, but why build it if someone else has :)

Thanks!

--
-Alex-

[Tamás Gulácsi]

rm -r $GOPATH/pkg
Before using an earlier compiler.

[C Banning]

If it's pure go code why not just sent GOOS=linux and GOARCH=amd64 on the Mac OS X system and cross-compile the application.  You can test the deployment package on an in-house Linux install then upload to AWS.  (That's what I've been doing for the past 3 years, and I've had no problems.)