# Compile packetbeat as 32 bits in a 64 bits environment (Linux)
**URL:** https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174
**Category:** Beats
**Tags:** packetbeat
**Created:** [December 15, 2016, 2:35pm UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174 "2016-12-15T14:35:53Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@PinXo](https://discuss.elastic.co/u/PinXo)
#### Post date: [December 15, 2016, 2:35pm UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/1 "2016-12-15T14:35:53Z")
How can I compile packetbeat in a 64 bits environment (linux) to generate a 32 bits executable?
I have tried "make crosscompile", which worked me on Winlogbeat. Then I read [Build packetbeat on windows](https://discuss.elastic.co/t/solved-build-packetbeat-on-windows/35161/7), so I downloaded beats-packer and tried to compile with "make packetbeat/deb".
Is this the right way? This project seems to clone again the repository, but I want to use mine.
How can I configure it?
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### Author:  [@andrewkroh](https://discuss.elastic.co/u/andrewkroh)
#### Post date: [December 16, 2016, 6:18pm UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/2 "2016-12-16T18:18:58Z")
On Linux with your Go build environment setup, does
`$ go build`
work for you from the packetbeat directory? This should build a 64-bit version. If that works then you can try running
`$ GOARCH=386 go build`
to try to build the 32-bit binary for linux.
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### Author:  [@PinXo](https://discuss.elastic.co/u/PinXo)
#### Post date: [December 19, 2016, 7:40am UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/3 "2016-12-19T07:40:33Z")
> [@andrewkroh](#):
>
> GOARCH=386 go build
When I try to compile it with that option I get the same error as compiling with crosscompile:
> go build [github.com/elastic/beats/vendor/github.com/tsg/gopacket/afpacket:](http://github.com/elastic/beats/vendor/github.com/tsg/gopacket/afpacket:) no buildable Go source files in /usr/local/test/golang/src/github.com/elastic/beats/vendor/github.com/tsg/gopacket/afpacket
---
### Author:  [@andrewkroh](https://discuss.elastic.co/u/andrewkroh)
#### Post date: [December 19, 2016, 2:11pm UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/4 "2016-12-19T14:11:21Z")
The only build tag I see on those files is `// +build linux` so that package should contain files when building on Linux. The regular 64-bit `GOOS=linux GOARCH=amd64 go build` command worked as expected?
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### Author:  [@PinXo](https://discuss.elastic.co/u/PinXo)
#### Post date: [December 19, 2016, 2:23pm UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/5 "2016-12-19T14:23:13Z")
Yes I have no problem compiling in 64 bits with Ubuntu 14.04. I have also tried to compile the same code with a Kubuntu 32 bits and it works too. But i'm not able to generate the 32 bit executable file from the 64 bits machine.
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### Author:  [@andrewkroh](https://discuss.elastic.co/u/andrewkroh)
#### Post date: [December 19, 2016, 5:16pm UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/6 "2016-12-19T17:16:40Z")
With Packetbeat requiring CGO you probably need to set some additional environment variables. See [https://github.com/elastic/beats/blob/master/dev-tools/packer/docker/xgo-image/base/build.sh#L142-L143](https://github.com/elastic/beats/blob/master/dev-tools/packer/docker/xgo-image/base/build.sh#L142-L143)
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### Author:  [@PinXo](https://discuss.elastic.co/u/PinXo)
#### Post date: [December 20, 2016, 8:02am UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/7 "2016-12-20T08:02:57Z")
I got it! Thanks for the information!
First, it's necessary to have installed libpcap 32 bits and then you must enable CGO
```
sudo dpkg --add-architecture i386
sudo apt-get update
apt-get install libpcap0.8-dev:i386
GOARCH=386 CGO_ENABLED=1 go build
```
I found this useful site:
[Compiling go app that uses Cgo](http://dequeue.blogspot.com.es/2015/09/compiling-go-app-that-uses-cgo-to-run.html)
Thank you!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [January 17, 2017, 8:02am UTC](https://discuss.elastic.co/t/compile-packetbeat-as-32-bits-in-a-64-bits-environment-linux/69174/8 "2017-01-17T08:02:57Z")
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