integrated-terminal (x86_64-unknown-linux-gnu)

Came from https://github.com/Microsoft/vscode/issues/62532

VS Code under flatpack is not workable for complex projects, while with a separate installation everything is fine.

In the OS terminal:
```
art@artPC:/$ ls /usr/bin/../lib/gcc/
avr i686-linux-gnu x86_64-linux-gnu

```
In the VSCode integrated under flatpack:
```

sh-4.4$ ls /usr/bin/../lib/gcc/
x86_64-unknown-linux-gnu

```
There is only one object (really 3) and it has different name - `x86_64-unknown-linux-gnu` instead correct `x86_64-linux-gnu`. As result - cannot to build library.

首先，在Flatpak集成终端中复现报告的编译器路径命令，并将其与主机终端的输出进行比较。当能够在那里使用预期的x86_64-linux-gnu目标路径构建复杂项目，且不再出现x86_64-unknown-linux-gnu不匹配时，该issue即完成。

由索引模型根据 Issue 内容生成。