internal/rosa/gnu: libtool artifact

Required when generating autotools build systems.

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

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,

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"