internal/rosa/libbsd: fetch libmd source via git

Eliminates the xz dependency.

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

internal/rosa/libbsd.go

@@ -5,15 +5,20 @@ import "hakurei.app/internal/pkg"
 func (t Toolchain) newLibmd() (pkg.Artifact, string) {
 	const (
 		version  = "1.1.0"
-		checksum = "72w7Na04b9ji6nOe2h-Tz5JeQ6iStDZN3FOG1JNZ9M_jMO8K2FceG6DZv7lYThZJ"
+		checksum = "9apYqPPZm0j5HQT8sCsVIhnVIqRD7XgN7kPIaTwTqnTuUq5waUAMq4M7ev8CODJ1"
 	)
-	return t.NewPackage("libmd", version, pkg.NewHTTPGet(
-		nil, "https://libbsd.freedesktop.org/releases/libmd-"+version+".tar.xz",
+	return t.NewPackage("libmd", version, t.NewViaGit(
+		"https://git.hadrons.org/git/libmd.git",
+		"refs/tags/"+version,
 		mustDecode(checksum),
-	), &PackageAttr{
-		SourceKind: SourceKindTarXZ,
-	}, (*MakeHelper)(nil),
-		XZ,
+	), nil, &MakeHelper{
+		Generate: "echo '" + version + "' > .dist-version && ./autogen",
+		ScriptMakeEarly: `
+install -D /usr/src/libmd/src/helper.c src/helper.c
+`,
+	},
+		Automake,
+		Libtool,
 	), version
 }
 func init() {