====== 2020-04-03 - cross-compiling in golang ======

i'm recently working on one project in [[wp>golang|Go]]. this is my first above-hello-world level project in this language. there is a chance it will be open source one day, but for now let's just call it "a project". i plan to write a separate post on my impressions on the language, but one thing that was a huge positive surprise for me is cross compiling.

let's take a simple Go program:

<code go>
package main
import "fmt"
func main() {
    fmt.Println("hello, world!")
}
</code>

and compile it:

<code bash>
go build
</code>

now let's cross-compile it for Raspberry Pi:

<code bash>
GOOS=linux GOARCH=arm GOARM=5 go build
</code>

after nearly 2 decades of C/C++ for both regular and embedded systems, my first though here was: son of a bitch -- they can do this...