How to Differentiate Builds for Linux and Windows in Go?

Building Differently for Linux and Windows in Go

When developing libraries that utilize different packages for different operating systems, it can be challenging to organize the build process. While creating separate projects for each OS and adjusting import names manually is an option, there is a more efficient approach.

Using Build Constraints and File Names

The Go language provides build constraints and file names to differentiate builds for specific operating systems.

Build Constraints

Build constraints are directives that specify the conditions under which a portion of code should be included or excluded from compilation. For instance, a build constraint for Unix systems is:

// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris

File Names

Files can have specific names to control which operating systems they are built for. Some examples include:

stat_darwin.go     stat_linux.go   stat_openbsd.go  stat_unix.go
stat_dragonfly.go  stat_nacl.go    stat_plan9.go    stat_windows.go
stat_freebsd.go    stat_netbsd.go  stat_solaris.go

Implementation

The Go tools and standard library initially used file names for build control. As requirements grew more complex, build constraints became the preferred method.

By leveraging build constraints and file names, you can efficiently manage the build process for libraries that need to use different packages for Linux and Windows operating systems.

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