internal/rosa/go: runtime dependencies for alterative path

The GCC toolchain is not dependency-free, so append them here.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/go.go

@@ -6,14 +6,12 @@ import (
 	"hakurei.app/internal/pkg"
 )
 
-var _go = H("go")
-
 // newGo returns a specific version of the Go toolchain.
 func (t Toolchain) newGo(
 	version, checksum string,
 	env []string,
 	script string,
-	boot pkg.Artifact,
+	boot ...pkg.Artifact,
 ) pkg.Artifact {
 	return t.NewPackage("go", version, newTar(
 		"https://go.dev/dl/go"+version+".src.tar.gz",
@@ -28,7 +26,7 @@ func (t Toolchain) newGo(
 			"TMPDIR=/dev/shm/go",
 		}, env),
 
-		Extra: []pkg.Artifact{boot},
+		Extra: boot,
 	}, &GenericHelper{
 		InPlace: true,
 		Build: `
@@ -72,13 +70,13 @@ func init() {
 	native.MustRegister(meta.Name, func(t Toolchain) (*Metadata, pkg.Artifact) {
 		var (
 			bootstrapEnv   []string
-			bootstrapEarly pkg.Artifact
+			bootstrapEarly []pkg.Artifact
 
 			finalEnv []string
 		)
 		switch t.arch {
 		case "amd64":
-			bootstrapEarly = t.NewPackage("go", "1.4-bootstrap", newTar(
+			bootstrapEarly = []pkg.Artifact{t.NewPackage("go", "1.4-bootstrap", newTar(
 				"https://dl.google.com/go/go1.4-bootstrap-20171003.tar.gz",
 				"8o9JL_ToiQKadCTb04nvBDkp8O1xiWOolAxVEqaTGodieNe4lOFEjlOxN3bwwe23",
 				pkg.TarGzip,
@@ -98,11 +96,11 @@ mkdir -p /var/tmp/
 `,
 			},
 				_bash,
-			)
+			)}
 
 		case "arm64", "riscv64":
 			bootstrapEnv = append(bootstrapEnv, "GOROOT_BOOTSTRAP=/system")
-			_, bootstrapEarly = t.MustLoad(H("gcc"))
+			bootstrapEarly = t.Append(bootstrapEarly, H("gcc"))
 			finalEnv = append(finalEnv, "CGO_ENABLED=0")
 
 		default:
@@ -123,7 +121,7 @@ sed -i \
 echo \
 	'type syscallDescriptor = int' >> \
 	os/rawconn_test.go
-`, bootstrapEarly)
+`, bootstrapEarly...)
 
 		go121 := t.newGo(
 			"1.21.13",