From 3226dc44dcfc6f14e0f28641adcb1dd671357966 Mon Sep 17 00:00:00 2001
From: Ophestra <cat@gensokyo.uk>
Date: Mon, 2 Feb 2026 19:50:20 +0900
Subject: [PATCH] internal/rosa/gnu: libtool artifact

Required when generating autotools build systems.

Signed-off-by: Ophestra <cat@gensokyo.uk>
---
 internal/rosa/all.go |  2 ++
 internal/rosa/gnu.go | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/internal/rosa/all.go b/internal/rosa/all.go
index f5436b2..a8c1e96 100644
--- a/internal/rosa/all.go
+++ b/internal/rosa/all.go
@@ -35,6 +35,7 @@ const (
 	Libexpat
 	Libffi
 	Libgd
+	Libtool
 	Libseccomp
 	Libxml2
 	M4
@@ -119,6 +120,7 @@ func ResolveName(name string) (p PArtifact, ok bool) {
 		"libxml2":           Libxml2,
 		"libffi":            Libffi,
 		"libgd":             Libgd,
+		"libtool":           Libtool,
 		"m4":                M4,
 		"make":              Make,
 		"meson":             Meson,
diff --git a/internal/rosa/gnu.go b/internal/rosa/gnu.go
index 874fbae..ed127b0 100644
--- a/internal/rosa/gnu.go
+++ b/internal/rosa/gnu.go
@@ -99,6 +99,26 @@ test_disable '#!/bin/sh' t/pr9.sh
 }
 func init() { artifactsF[Automake] = Toolchain.newAutomake }
 
+func (t Toolchain) newLibtool() pkg.Artifact {
+	const (
+		version  = "2.5.4"
+		checksum = "pa6LSrQggh8mSJHQfwGjysAApmZlGJt8wif2cCLzqAAa2jpsTY0jZ-6stS3BWZ2Q"
+	)
+	return t.NewViaMake("libtool", version, pkg.NewHTTPGetTar(
+		nil, "https://ftpmirror.gnu.org/gnu/libtool/libtool-"+version+".tar.gz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	), &MakeAttr{
+		Env: []string{
+			"TESTSUITEFLAGS=" + strconv.Itoa(runtime.NumCPU()),
+		},
+	},
+		t.Load(M4),
+		t.Load(Diffutils),
+	)
+}
+func init() { artifactsF[Libtool] = Toolchain.newLibtool }
+
 func (t Toolchain) newGzip() pkg.Artifact {
 	const (
 		version  = "1.14"