68 lines
2.1 KiB
Markdown
68 lines
2.1 KiB
Markdown
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To cross-compile a Go program for Windows from Linux using CGO, you need to set the environment variables for the target OS and architecture, and specify the appropriate C and C++ compilers. For example, you can use the command: Google Wikipedia
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GOOS=windows GOARCH=amd64 CGO_ENABLED=1 CXX_FOR_TARGET=x86_64-w64-mingw32-g++ CC_FOR_TARGET=x86_64-w64-mingw32-gcc go build -o your_program.exe your_program.go
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Cross Compiling Go Programs for Windows from Linux with CGO
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Prerequisites
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Go Installation: Ensure you have Go installed on your Linux system. Version 1.5 or higher is required for easy cross-compilation.
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C Cross-Compiler: Install a cross-compiler for Windows. Use the following command to install mingw-w64:
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bash
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sudo apt-get install gcc-mingw-w64
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Setting Up Environment Variables
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To cross-compile a Go program that uses CGO, you need to set specific environment variables. Here’s how to do it for both 32-bit and 64-bit Windows executables:
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For 32-bit Windows:
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bash
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export GOOS=windows
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export GOARCH=386
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export CGO_ENABLED=1
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export CXX=i686-w64-mingw32-g++
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export CC=i686-w64-mingw32-gcc
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For 64-bit Windows:
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bash
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export GOOS=windows
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export GOARCH=amd64
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export CGO_ENABLED=1
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export CXX=x86_64-w64-mingw32-g++
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export CC=x86_64-w64-mingw32-gcc
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Building the Executable
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Once the environment variables are set, you can build your Go program. Use the following command:
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bash
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go build -o your_program.exe your_program.go
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Important Notes
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Statefulness: The build process can be stateful. It’s recommended to build Windows binaries last to avoid issues with Linux binaries.
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Testing: You cannot run Windows executables directly on Linux. Use Wine to test your built executables.
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Example Command
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Here’s a complete example for building a simple Go program:
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bash
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# Set environment for 64-bit Windows
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export GOOS=windows
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export GOARCH=amd64
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export CGO_ENABLED=1
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export CXX=x86_64-w64-mingw32-g++
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export CC=x86_64-w64-mingw32-gcc
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# Build the executable
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go build -o hello.exe hello.go
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This process allows you to create Windows executables from a Linux environment while utilizing CGO for C dependencies.
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