go/build/constraint package
Canonical docs for parsing and reasoning about Go build constraints.
Canonical docs for parsing and reasoning about Go build constraints.
- Author: Go Team
- Authority: primary
- Kind: package-doc
- URL: https://pkg.go.dev/go/build/constraint
What it covers
- go:build syntax
- constraint expressions
- build-tag semantics
Why authoritative
Official package documentation for Go build-constraint parsing and semantics.
Use when
- how do build tags work in Go
- how should I write a go:build line
- what does this build constraint mean
Keywords
- build tags, build constraints, go:build, conditional compilation, go/build/constraint