cd /boring/godriver
cat >goboringcrypto.cc <<'EOF'
#include <cassert>
#include "goboringcrypto0.h"
#include "goboringcrypto1.h"
#define check_size(t) if(sizeof(t) != sizeof(GO_ ## t)) {printf("sizeof(" #t ")=%d, but sizeof(GO_" #t ")=%d\n", (int)sizeof(t), (int)sizeof(GO_ ## t)); ret=1;}
#define check_func(f) { auto x = f; x = _goboringcrypto_ ## f ; }

If the -exec flag is given, 'go run' invokes the binary using xprog:
	'xprog a.out arguments...'.
If the -exec flag is not given, GOOS or GOARCH is different from the system
default, and a program named go_$GOOS_$GOARCH_exec can be found
on the current search path, 'go run' invokes the binary using that program,
for example 'go_js_wasm_exec a.out arguments...'. This allows execution of

		strings.HasSuffix(name, ".bash") ||
		strings.HasSuffix(name, ".sh") ||
		strings.HasSuffix(name, ".pl") ||
		strings.HasSuffix(name, ".rc") {
		return 0o755
	} else if ok, _ := amatch("**/go_?*_?*_exec", name); ok {
		return 0o755
	}
	return 0o644
}

// readVERSION reads the VERSION file.
// The first line of the file is the Go version.

			fmt.Fprintf(os.Stderr, "%s", ee.Stderr)
		}
		log.Panicf("go env %s failed:\n%s\n", key, err)
	}
	return strings.TrimSpace(string(out))
}

func cmdToRun(name string) []string {
	execScript := "go_" + goEnv("GOOS") + "_" + goEnv("GOARCH") + "_exec"
	executor, err := exec.LookPath(execScript)
	if err != nil {
		return []string{name}
	}
	return []string{executor, name}
}

		return ExecCmd
	}
	ExecCmd = []string{} // avoid work the second time
	if cfg.Goos == runtime.GOOS && cfg.Goarch == runtime.GOARCH {
		return ExecCmd
	}
	path, err := cfg.LookPath(fmt.Sprintf("go_%s_%s_exec", cfg.Goos, cfg.Goarch))
	if err == nil {
		ExecCmd = []string{path}
	}
	return ExecCmd
}

// A coverFlag is a flag.Value that also implies -cover.
type coverFlag struct{ V flag.Value }

		oldcc := os.Getenv("CC")
		os.Setenv("GOOS", gohostos)
		os.Setenv("GOARCH", gohostarch)
		os.Setenv("CC", compilerEnvLookup("CC", defaultcc, gohostos, gohostarch))
		goCmd(nil, gorootBinGo, "build", "-o", pathf("%s/go_%s_%s_exec%s", gorootBin, goos, goarch, exe), wrapperPath)
		// Restore environment.
		// TODO(elias.naur): support environment variables in goCmd?
		os.Setenv("GOOS", goos)
		os.Setenv("GOARCH", goarch)

var execCmd []string

func findExecCmd() []string {
	execCmdOnce.Do(func() {
		if goos == runtime.GOOS && goarch == runtime.GOARCH {
			// Do nothing.
		} else if path, err := exec.LookPath(fmt.Sprintf("go_%s_%s_exec", goos, goarch)); err == nil {
			execCmd = []string{path}
		}
	})
	return execCmd
}

// checkExpectedOutput compares the output from compiling and/or running with the contents

// If the -exec flag is given, 'go run' invokes the binary using xprog:
//
//	'xprog a.out arguments...'.
//
// If the -exec flag is not given, GOOS or GOARCH is different from the system
// default, and a program named go_$GOOS_$GOARCH_exec can be found
// on the current search path, 'go run' invokes the binary using that program,
// for example 'go_js_wasm_exec a.out arguments...'. This allows execution of