snapcraft: add apparmor part

Let's ship newer version of AppArmor with support of new features.
Only needed for core22. But we will use with core24 based series for consistency.

Also bumped apparmor to v4.0.2.

Signed-off-by: Alexander Mikhalitsyn <[email protected]>
(cherry picked from commit 8591ed4)
Signed-off-by: Thomas Parrott <[email protected]>

snapcraft.yaml

@@ -1187,14 +1187,51 @@ parts:
       - bin/pzstd
       - bin/zstd
 
+  apparmor:
+    source: https://gitlab.com/apparmor/apparmor.git
+    source-commit: 84a6bc1b6dcdfeabb1ed3597f01e314f3bcee5c1 # v4.0.2
+    source-depth: 1
+    source-type: git
+    plugin: autotools
+    build-packages:
+      - g++
+      - bison
+      - flex
+      - autoconf-archive
+      - gettext
+    override-build: |-
+      set -ex
+
+      cd ./libraries/libapparmor
+      sh ./autogen.sh
+      sh ./configure --prefix=/
+      make
+      make install
+
+      cd ../../parser
+      make
+      make install
+
+      mkdir "${CRAFT_PART_INSTALL}/bin"
+      cp /sbin/apparmor_parser "${CRAFT_PART_INSTALL}/bin/"
+      mkdir "${CRAFT_PART_INSTALL}/lib"
+      cp /lib/libapparmor.so* "${CRAFT_PART_INSTALL}/lib/"
+
+      set +ex
+    prime:
+      - bin/apparmor_parser
+      - lib/libapparmor.so.1
+      - lib/libapparmor.so.1.*
+
   # Core components
   lxc:
+    after:
+      - apparmor
     source: https://github.com/lxc/lxc
     source-depth: 1
     source-type: git
     build-packages:
       - dpkg-dev
-      - libapparmor-dev
       - libcap-dev
       - libdbus-1-dev
       - libgnutls28-dev