Add gcc to the build commands list

Author: GuillaumeGomez

src/bootstrap/src/core/build_steps/gcc.rs

@@ -85,7 +85,7 @@ impl Step for Gcc {
     const ONLY_HOSTS: bool = true;
 
     fn should_run(run: ShouldRun<'_>) -> ShouldRun<'_> {
-        run.path("src/gcc")
+        run.path("src/gcc").alias("gcc")
     }
 
     fn make_run(run: RunConfig<'_>) {

src/bootstrap/src/core/builder.rs

@@ -14,7 +14,7 @@ use clap::ValueEnum;
 
 use crate::core::build_steps::tool::{self, SourceType};
 use crate::core::build_steps::{
-    check, clean, clippy, compile, dist, doc, install, llvm, run, setup, test, vendor,
+    check, clean, clippy, compile, dist, doc, gcc, install, llvm, run, setup, test, vendor,
 };
 use crate::core::config::flags::{Color, Subcommand};
 use crate::core::config::{DryRun, SplitDebuginfo, TargetSelection};
@@ -793,6 +793,7 @@ impl<'a> Builder<'a> {
                 tool::Clippy,
                 tool::CargoClippy,
                 llvm::Llvm,
+                gcc::Gcc,
                 llvm::Sanitizers,
                 tool::Rustfmt,
                 tool::Miri,