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// SPDX-License-Identifier: Apache-2.0
// SPDX-FileCopyrightText: 2022 The Ebitengine Authors
//go:build darwin || freebsd || linux || netbsd || windows
package main
import (
"fmt"
"runtime"
"github.com/ebitengine/purego"
)
func getSystemLibrary() string {
switch runtime.GOOS {
case "darwin":
return "/usr/lib/libSystem.B.dylib"
case "freebsd":
return "libc.so.7"
case "linux":
return "libc.so.6"
case "netbsd":
return "libc.so"
case "windows":
return "ucrtbase.dll"
default:
panic(fmt.Errorf("GOOS=%s is not supported", runtime.GOOS))
}
}
func main() {
libc, err := openLibrary(getSystemLibrary())
if err != nil {
panic(err)
}
var puts func(string)
purego.RegisterLibFunc(&puts, libc, "puts")
puts("Calling C from Go without Cgo!")
}
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