Cross compiling Go app

Cross compiling Go app

First build cross compiling toolchain

cd go/src
CGO_ENABLED=0 GOOS=linux GOARCH=amd64 ./make.bash  --no-clean
CGO_ENABLED=0 GOOS=windows GOARCH=amd64 ./make.bash --no-clean

Second build your file

GOOS=windows GOARCH=386 go build -o appname.exe appname.go
GOOS=linux GOARCH=386 CGO_ENABLED=0 go build -o appname.linux appname.go


CGO_ENABLED=0 will deactivate use of CGo. So it will be a portable app. But if your app use CGo (for example by using go package "net"), it will not build.

Option : use gonative

If you want to use CGo and do cross compiling, use gonative which download each binary distribution for each platform and build cross compiling toolchain with theses binaries, so you can use CGo.

https://github.com/inconshreveable/gonative
https://inconshreveable.com/04-30-2014/cross-compiling-golang-programs-with-native-libraries/

And then use gox https://github.com/mitchellh/gox
to cross compile your application

Some links

http://www.goinggo.net/2013/10/cross-compile-your-go-programs.html
http://solovyov.net/en/2012/cross-compiling-go/
http://stackoverflow.com/questions/12168873/cross-compile-go-on-osx