As part of my studies with Go, yesterday tried to compile a simple project to windows from my ubuntu linux, and I've got some small tips for that.
1 - To Crosscompile you just need to change 2 enviroment variables, GOARCH (the architecture of the processor) and GOOS (the operational system), you could do this by using export:
export GOARCH="amd64"
export GOOS="windows"
But this makes you need to revert it later.
For a 1 line approach you can pass the parameters before run build command.
GOOS=windows GOARCH=386 go build
2 - If you are using some C library with cgo, you gonna need to enable the CGO_ENABLED flag, and have the structure to compile the C library properly (mingw for windows and things like that). Ex:
GOOS=windows GOARCH=386 CGO_ENABLED=1 CC=i686-w64-mingw32-gcc CXX=i686-w64-mingw32-g++ go build -ldflags "-H windowsgui" <= this didn't work.
In some cases you can use xgo ( https://github.com/karalabe/xgo ):
xgo --targets=windows/* . would compile to windows.
It was relatively easy to crosscompile, lets check later with larger projects.
If you have some case to tell or some suggestion, please comment.
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