diff --git a/internal/rosa/all.go b/internal/rosa/all.go
index 5e6500a..c3ffb94 100644
--- a/internal/rosa/all.go
+++ b/internal/rosa/all.go
@@ -58,6 +58,7 @@ const (
 	Meson
 	Mksh
 	MuslFts
+	MuslObstack
 	NSS
 	NSSCACert
 	Ninja
@@ -175,6 +176,7 @@ func ResolveName(name string) (p PArtifact, ok bool) {
 		"meson":             Meson,
 		"mksh":              Mksh,
 		"musl-fts":          MuslFts,
+		"musl-obstack":      MuslObstack,
 		"nss":               NSS,
 		"nss-cacert":        NSSCACert,
 		"ninja":             Ninja,
diff --git a/internal/rosa/musl-obstack.go b/internal/rosa/musl-obstack.go
new file mode 100644
index 0000000..2b45ed8
--- /dev/null
+++ b/internal/rosa/musl-obstack.go
@@ -0,0 +1,33 @@
+package rosa
+
+import "hakurei.app/internal/pkg"
+
+func (t Toolchain) newMuslObstack() pkg.Artifact {
+	const (
+		version  = "1.2.3"
+		checksum = "tVRY_KjIlkkMszcaRlkKdBVQHIXTT_T_TiMxbwErlILXrOBosocg8KklppZhNdCG"
+	)
+	return t.NewViaMake("musl-obstack", version, pkg.NewHTTPGetTar(
+		nil, "https://github.com/void-linux/musl-obstack/archive/refs/tags/"+
+			"v"+version+".tar.gz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	), &MakeAttr{
+		Writable: true,
+		Env: []string{
+			"CC=cc -fPIC",
+		},
+		ScriptEarly: `
+cd /usr/src/musl-obstack
+./bootstrap.sh
+`,
+	},
+		t.Load(M4),
+		t.Load(Perl),
+		t.Load(Autoconf),
+		t.Load(Automake),
+		t.Load(Libtool),
+		t.Load(PkgConfig),
+	)
+}
+func init() { artifactsF[MuslObstack] = Toolchain.newMuslObstack }