fix: install the latest gcc for using llvm

Author: aminya

dist/setup_cpp.js

@@ -13,6 +13,8 @@ import { setupAptPack } from "../utils/setup/setupAptPack"
 import { warning } from "../utils/io/io"
 import { existsSync } from "fs"
 import { isGitHubCI } from "../utils/env/isci"
+import { setupGcc } from "../gcc/gcc"
+import { getVersion } from "../default_versions"
 
 //================================================
 // Version
@@ -255,7 +257,7 @@ async function _setupLLVM(version: string, setupDir: string, arch: string) {
   if (!didInit) {
     if (process.platform === "linux") {
       // install llvm build dependencies
-      await setupAptPack("build-essential") // TODO(question) llvm needs ld. But does it need all the build-essential?
+      await setupGcc(getVersion("gcc", undefined), "", arch) // using llvm requires ld, an up to date libstdc++, etc. So, install gcc first
       await setupAptPack("libtinfo-dev")
     }
     // eslint-disable-next-line require-atomic-updates