error_(r.Pos(), "must call C.%s", fixGo(r.Name.Go))
		}
	}
	return expr
}

// gofmtPos returns the gofmt-formatted string for an AST node,
// with a comment setting the position before the node.
func gofmtPos(n ast.Expr, pos token.Pos) string {
	s := gofmt(n)
	p := fset.Position(pos)
	if p.Column == 0 {
		return s
	}
	return fmt.Sprintf("/*line :%d:%d*/%s", p.Line, p.Column, s)
}

		checkNotStale(toolenv(), goBootstrap, toolchain...)
		copyfile(pathf("%s/compile4", tooldir), pathf("%s/compile", tooldir), writeExec)
	}

	// Check that there are no new files in $GOROOT/bin other than
	// go and gofmt and $GOOS_$GOARCH (target bin when cross-compiling).
	binFiles, err := filepath.Glob(pathf("%s/bin/*", goroot))
	if err != nil {
		fatalf("glob: %v", err)
	}

	ok := map[string]bool{}

github.com/golangci/go-misc v0.0.0-20220329215616-d24fe342adfe/go.mod h1:gjqyPShc/m8pEMpk0a3SeagVb0kaqvhscv+i9jI5ZhQ=
github.com/golangci/gofmt v0.0.0-20231018234816-f50ced29576e h1:ULcKCDV1LOZPFxGZaA6TlQbiM3J2GCPnkx/bGF6sX/g=
github.com/golangci/gofmt v0.0.0-20231018234816-f50ced29576e/go.mod h1:Pm5KhLPA8gSnQwrQ6ukebRcapGb/BG9iUkdaiCcGHJM=
github.com/golangci/golangci-lint v1.56.2 h1:dgQzlWHgNbCqJjuxRJhFEnHDVrrjuTGQHJ3RIZMpp/o=

		if ok && id.Name == "unsafe" && t.Sel.Name == "Pointer" {
			return &Type{Size: p.PtrSize, Align: p.PtrSize, C: c("void*")}
		}
	}
	error_(e.Pos(), "Go type not supported in export: %s", gofmt(e))
	return &Type{Size: 4, Align: 4, C: c("int")}
}

const gccProlog = `
#line 1 "cgo-gcc-prolog"
/*
  If x and y are not equal, the type will be invalid

		slice3 := false
		if ncolons == 2 {
			slice3 = true
			// Check presence of middle and final index here rather than during type-checking
			// to prevent erroneous programs from passing through gofmt (was go.dev/issue/7305).
			if index[1] == nil {
				p.error(colons[0], "middle index required in 3-index slice")
				index[1] = &ast.BadExpr{From: colons[0] + 1, To: colons[1]}
			}
			if index[2] == nil {

	// The link action ID did not include the full main build ID,
	// even though the full main build ID is written into the
	// eventual binary. That caused the following install to
	// be a no-op, thinking the gofmt binary was up-to-date,
	// even though .Stale could see it was not.
	tg.tempFile("src/m/main.go", "package main /* c2 */; func main() {}\n")
	tg.run("install", "-x", "m")
	tg.run("list", "-f", "{{.Stale}}", "m")