virtual/linux-sources: improvements

Signed-off-by: Alexander Kurakin <kuraga333@mail.ru>

virtual/linux-sources/linux-sources-3-r13.ebuild

@@ -0,0 +1,26 @@
+# Copyright 1999-2024 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# NOTE: This is a version of `virtual/linux-sources-3-r8::gentoo` adopted to Calculate Linux
+
+EAPI=7
+
+DESCRIPTION="Virtual for Linux kernel sources in Calculate Linux"
+SLOT="0"
+KEYWORDS="~amd64"
+IUSE="firmware"
+
+RDEPEND="
+	firmware? ( sys-kernel/linux-firmware )
+	|| (
+		sys-kernel/calculate-sources
+		sys-kernel/gentoo-sources
+		sys-kernel/vanilla-sources
+		sys-kernel/git-sources
+		sys-kernel/pf-sources
+		sys-kernel/rt-sources
+		sys-kernel/zen-sources
+		sys-kernel/gentoo-kernel
+		sys-kernel/gentoo-kernel-bin
+		sys-kernel/vanilla-kernel
+	)"

virtual/linux-sources/metadata.xml

@@ -6,4 +6,8 @@
         <name>Mir Calculate</name>
         <description>Calculate Overlay</description>
     </maintainer>
+    <use>
+        <flag name="firmware">Install linux kernel firmware</flag>
+    </use>
+    <stabilize-allarches/>
 </pkgmetadata>