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+# Common code for generating core reference images
+#
+# Copyright (C) 2007-2011 Linux Foundation
+#
+# SPDX-License-Identifier: MIT
+
+# IMAGE_FEATURES control content of the core reference images
+#
+# By default we install packagegroup-core-boot and packagegroup-base-extended packages;
+# this gives us working (console only) rootfs.
+#
+# Available IMAGE_FEATURES:
+#
+# - weston - Weston Wayland compositor
+# - x11 - X server
+# - x11-base - X server with minimal environment
+# - x11-sato - OpenedHand Sato environment
+# - tools-debug - debugging tools
+# - eclipse-debug - Eclipse remote debugging support
+# - tools-profile - profiling tools
+# - tools-testapps - tools usable to make some device tests
+# - tools-sdk - SDK (C/C++ compiler, autotools, etc.)
+# - nfs-server - NFS server
+# - nfs-client - NFS client
+# - ssh-server-dropbear - SSH server (dropbear)
+# - ssh-server-openssh - SSH server (openssh)
+# - hwcodecs - Install hardware acceleration codecs
+# - package-management - installs package management tools and preserves the package manager database
+# - debug-tweaks - makes an image suitable for development, e.g. allowing passwordless root logins
+# - empty-root-password
+# - allow-empty-password
+# - allow-root-login
+# - post-install-logging
+# - serial-autologin-root - with 'empty-root-password': autologin 'root' on the serial console
+# - dev-pkgs - development packages (headers, etc.) for all installed packages in the rootfs
+# - dbg-pkgs - debug symbol packages for all installed packages in the rootfs
+# - lic-pkgs - license packages for all installed pacakges in the rootfs, requires
+# LICENSE_CREATE_PACKAGE="1" to be set when building packages too
+# - doc-pkgs - documentation packages for all installed packages in the rootfs
+# - bash-completion-pkgs - bash-completion packages for recipes using bash-completion bbclass
+# - ptest-pkgs - ptest packages for all ptest-enabled recipes
+# - read-only-rootfs - tweaks an image to support read-only rootfs
+# - stateless-rootfs - systemctl-native not run, image populated by systemd at runtime
+# - splash - bootup splash screen
+#
+FEATURE_PACKAGES_weston = "packagegroup-core-weston"
+FEATURE_PACKAGES_x11 = "packagegroup-core-x11"
+FEATURE_PACKAGES_x11-base = "packagegroup-core-x11-base"
+FEATURE_PACKAGES_x11-sato = "packagegroup-core-x11-sato"
+FEATURE_PACKAGES_tools-debug = "packagegroup-core-tools-debug"
+FEATURE_PACKAGES_eclipse-debug = "packagegroup-core-eclipse-debug"
+FEATURE_PACKAGES_tools-profile = "packagegroup-core-tools-profile"
+FEATURE_PACKAGES_tools-testapps = "packagegroup-core-tools-testapps"
+FEATURE_PACKAGES_tools-sdk = "packagegroup-core-sdk packagegroup-core-standalone-sdk-target"
+FEATURE_PACKAGES_nfs-server = "packagegroup-core-nfs-server"
+FEATURE_PACKAGES_nfs-client = "packagegroup-core-nfs-client"
+FEATURE_PACKAGES_ssh-server-dropbear = "packagegroup-core-ssh-dropbear"
+FEATURE_PACKAGES_ssh-server-openssh = "packagegroup-core-ssh-openssh"
+FEATURE_PACKAGES_hwcodecs = "${MACHINE_HWCODECS}"
+
+
+# IMAGE_FEATURES_REPLACES_foo = 'bar1 bar2'
+# Including image feature foo would replace the image features bar1 and bar2
+IMAGE_FEATURES_REPLACES_ssh-server-openssh = "ssh-server-dropbear"
+# Do not install openssh complementary packages if either packagegroup-core-ssh-dropbear or dropbear
+# is installed # to avoid openssh-dropbear conflict
+# see [Yocto #14858] for more information
+PACKAGE_EXCLUDE_COMPLEMENTARY:append = "${@bb.utils.contains_any('PACKAGE_INSTALL', 'packagegroup-core-ssh-dropbear dropbear', ' openssh', '' , d)}"
+
+# IMAGE_FEATURES_CONFLICTS_foo = 'bar1 bar2'
+# An error exception would be raised if both image features foo and bar1(or bar2) are included
+
+MACHINE_HWCODECS ??= ""
+
+CORE_IMAGE_BASE_INSTALL = '\
+ packagegroup-core-boot \
+ packagegroup-base-extended \
+ \
+ ${CORE_IMAGE_EXTRA_INSTALL} \
+ '
+
+CORE_IMAGE_EXTRA_INSTALL ?= ""
+
+IMAGE_INSTALL ?= "${CORE_IMAGE_BASE_INSTALL}"
+
+inherit image