When cross-compiling Go on Mac, do I need to manually switch GOOS environment variables every time?

Cross-compilation of Go language on Mac: Say goodbye to manually switch GOOS environment variables

When developing Go language on macOS, cross-compilation is often required, such as generating executable files for Linux systems. Frequently manually setting GOOS environment variables is not only cumbersome, but also prone to errors. This article explains how to simplify this process and avoid manually switching GOOS every time.

Problem: Inconvenience of manually switching GOOS

The traditional approach is to set environment variables such as GOOS=linux before each cross-compilation, and then restore them after the compilation is completed. This method is inefficient and easily missed.

Solution: Efficient cross-compilation method

The Go language itself supports directly specifying the target operating system and architecture on the command line without modifying environment variables. The following two methods can significantly improve efficiency:

1. Simplify compilation with Makefile:

   Create a Makefile file, specify GOOS and GOARCH directly, and then call the go build command. For example:

    build-linux:
       GOOS=linux GOARCH=amd64 go build -o myapp_linux myapp.go

   Run make build-linux to compile the Linux version of the executable file without manually setting environment variables.

2. Build configuration using GoLand:

   GoLand IDE provides powerful build configuration capabilities. You can create different build configurations, specifying different GOOS and GOARCH respectively. This way, cross-compilation can be performed with just one click without manual operation in the terminal. In GoLand's Run/Debug Configuration, you can create independent configurations for each target platform.

Through the above methods, you can efficiently cross-compile the Go language, avoiding tedious manual GOOS environment variable switching, thereby improving development efficiency.

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