How to compile Go program consisting of multiple files?

go build compiler-errors
Vitaly picture Vitaly · May 31, 2012 · Viewed 142.1k times · Source

I have a small program that consists of three files, all belonging to the same package (main), but when I do "go build main.go" the build doesn't succeed. When it was just one file (main.go) everything worked fine. Now that I took some effort to separate the code, it looks like the compiler is unable to find the stuff that was taken out of main.go and put into these two other files (that reside at the same directory as the main.go). Which results in "undefined 'type'" errors.

How to compile this program that is consisting of multiple files?

Answer

Denys Séguret picture Denys Séguret · May 31, 2012

New Way (Recommended):

Please take a look at this answer.

Old Way:

Supposing you're writing a program called myprog :

Put all your files in a directory like this

myproject/go/src/myprog/xxx.go

Then add myproject/go to GOPATH

And run 

go install myprog

This way you'll be able to add other packages and programs in myproject/go/src if you want.

Reference : http://golang.org/doc/code.html

(this doc is always missed by newcomers, and often ill-understood at first. It should receive the greatest attention of the Go team IMO)

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