From dc963021114a4e2ffa874d4838382a1ad67a4f53 Mon Sep 17 00:00:00 2001
From: Ophestra <cat@gensokyo.uk>
Date: Mon, 19 Jan 2026 00:35:17 +0900
Subject: [PATCH] internal/rosa: GNU make artifact

This compiles GNU make from source. This is unfortunately required by many programs, but is a cure dependency only.

Signed-off-by: Ophestra <cat@gensokyo.uk>
---
 container/fhs/abs.go  |  2 ++
 internal/rosa/gnu.go  | 25 +++++++++++++++++++++++++
 internal/rosa/rosa.go |  3 +++
 3 files changed, 30 insertions(+)
 create mode 100644 internal/rosa/gnu.go

diff --git a/container/fhs/abs.go b/container/fhs/abs.go
index dfd3c04..fda6971 100644
--- a/container/fhs/abs.go
+++ b/container/fhs/abs.go
@@ -26,6 +26,8 @@ var (
 	// AbsRunUser is [RunUser] as [check.Absolute].
 	AbsRunUser = unsafeAbs(RunUser)
 
+	// AbsUsr is [Usr] as [check.Absolute].
+	AbsUsr = unsafeAbs(Usr)
 	// AbsUsrBin is [UsrBin] as [check.Absolute].
 	AbsUsrBin = unsafeAbs(UsrBin)
 
diff --git a/internal/rosa/gnu.go b/internal/rosa/gnu.go
new file mode 100644
index 0000000..8fe5b8a
--- /dev/null
+++ b/internal/rosa/gnu.go
@@ -0,0 +1,25 @@
+package rosa
+
+import "hakurei.app/internal/pkg"
+
+// NewMake returns a [pkg.Artifact] containing an installation of GNU Make.
+func (t Toolchain) NewMake() pkg.Artifact {
+	const (
+		version  = "4.4.1"
+		checksum = "YS_B07ZcAy9PbaK5_vKGj64SrxO2VMpnMKfc9I0Q9IC1rn0RwOH7802pJoj2Mq4a"
+	)
+	return t.New("make-"+version, nil, nil, nil, `
+cd "$(mktemp -d)"
+/usr/src/make/configure --prefix=/system \
+	--build="${ROSA_TRIPLE}" \
+	--disable-dependency-tracking
+./build.sh
+./make DESTDIR=/work install
+`, pkg.Path(AbsUsrSrc.Append("make"), false, pkg.NewHTTPGetTar(
+		nil,
+		"https://ftp.gnu.org/gnu/make/make-"+version+".tar.gz",
+		mustDecode(checksum),
+		pkg.TarGzip,
+	)))
+
+}
diff --git a/internal/rosa/rosa.go b/internal/rosa/rosa.go
index 1aff698..d7a6105 100644
--- a/internal/rosa/rosa.go
+++ b/internal/rosa/rosa.go
@@ -36,6 +36,9 @@ func mustDecode(s string) pkg.Checksum {
 }
 
 var (
+	// AbsUsrSrc is the conventional directory to place source code under.
+	AbsUsrSrc = fhs.AbsUsr.Append("src")
+
 	// AbsSystem is the Rosa OS installation prefix.
 	AbsSystem = fhs.AbsRoot.Append("system")
 )