llgo install: use clang to link

x/clang/clang.go

@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package clang
+
+import (
+	"os"
+	"os/exec"
+)
+
+// -----------------------------------------------------------------------------
+
+// Cmd represents a nm command.
+type Cmd struct {
+	app string
+}
+
+// New creates a new nm command.
+func New(app string) *Cmd {
+	if app == "" {
+		app = "clang"
+	}
+	return &Cmd{app}
+}
+
+func (p *Cmd) Exec(args ...string) error {
+	cmd := exec.Command(p.app, args...)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	return cmd.Run()
+}
+
+// -----------------------------------------------------------------------------