From: Luca Boccassi <[email protected]>

Support for unmerged-usr is deprecated upstream, taints the system and
has been removed for v255 (next release).
Enforce building merged-usr images when using systemd. This allows one
release cycle where it can be tested for any remaining issue, and can
still be overridden, before it stops working completely.

Signed-off-by: Luca Boccassi <[email protected]>
---
v2: rearrange so systemd-boot.bb is left as-is for now

 meta/recipes-core/systemd/systemd-compat-units.bb      | 3 ++-
 meta/recipes-core/systemd/systemd-conf_1.0.bb          | 3 +++
 meta/recipes-core/systemd/systemd-machine-units_1.0.bb | 3 ++-
 meta/recipes-core/systemd/systemd-serialgetty.bb       | 3 ++-
 meta/recipes-core/systemd/systemd_254.bb               | 6 +++++-
 5 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/meta/recipes-core/systemd/systemd-compat-units.bb 
b/meta/recipes-core/systemd/systemd-compat-units.bb
index 55ebf99117f..75b1045728a 100644
--- a/meta/recipes-core/systemd/systemd-compat-units.bb
+++ b/meta/recipes-core/systemd/systemd-compat-units.bb
@@ -14,7 +14,8 @@ INHIBIT_DEFAULT_DEPS = "1"
 
 ALLOW_EMPTY:${PN} = "1"
 
-REQUIRED_DISTRO_FEATURES = "systemd"
+REQUIRED_DISTRO_FEATURES += "systemd"
+REQUIRED_DISTRO_FEATURES += "usrmerge"
 
 SYSTEMD_DISABLED_SYSV_SERVICES = " \
   busybox-udhcpc \
diff --git a/meta/recipes-core/systemd/systemd-conf_1.0.bb 
b/meta/recipes-core/systemd/systemd-conf_1.0.bb
index 61ce7939d3a..2355936631e 100644
--- a/meta/recipes-core/systemd/systemd-conf_1.0.bb
+++ b/meta/recipes-core/systemd/systemd-conf_1.0.bb
@@ -5,6 +5,9 @@ DefaultTimeoutStartSec setting."
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = 
"file://${COREBASE}/meta/COPYING.MIT;md5=3da9cfbcb788c80a0384361b4de20420"
 
+inherit features_check
+REQUIRED_DISTRO_FEATURES += "usrmerge"
+
 PE = "1"
 
 PACKAGECONFIG ??= "dhcp-ethernet"
diff --git a/meta/recipes-core/systemd/systemd-machine-units_1.0.bb 
b/meta/recipes-core/systemd/systemd-machine-units_1.0.bb
index 12f27d6ae30..7e59e86f9be 100644
--- a/meta/recipes-core/systemd/systemd-machine-units_1.0.bb
+++ b/meta/recipes-core/systemd/systemd-machine-units_1.0.bb
@@ -7,7 +7,8 @@ PACKAGE_ARCH = "${MACHINE_ARCH}"
 
 PR = "r19"
 
-inherit systemd
+inherit systemd features_check
+REQUIRED_DISTRO_FEATURES += "usrmerge"
 SYSTEMD_SERVICE:${PN} = ""
 
 ALLOW_EMPTY:${PN} = "1"
diff --git a/meta/recipes-core/systemd/systemd-serialgetty.bb 
b/meta/recipes-core/systemd/systemd-serialgetty.bb
index fd888bb8340..c2c67e6fe08 100644
--- a/meta/recipes-core/systemd/systemd-serialgetty.bb
+++ b/meta/recipes-core/systemd/systemd-serialgetty.bb
@@ -14,7 +14,8 @@ S = "${WORKDIR}"
 
 # As this package is tied to systemd, only build it when we're also building 
systemd.
 inherit features_check
-REQUIRED_DISTRO_FEATURES = "systemd"
+REQUIRED_DISTRO_FEATURES += "systemd"
+REQUIRED_DISTRO_FEATURES += "usrmerge"
 
 do_install() {
        if [ ! -z "${SERIAL_CONSOLES}" ] ; then
diff --git a/meta/recipes-core/systemd/systemd_254.bb 
b/meta/recipes-core/systemd/systemd_254.bb
index 7ba4233f6a2..3fa49122cd6 100644
--- a/meta/recipes-core/systemd/systemd_254.bb
+++ b/meta/recipes-core/systemd/systemd_254.bb
@@ -10,9 +10,13 @@ SECTION = "base/shell"
 
 inherit useradd pkgconfig meson perlnative update-rc.d update-alternatives 
qemu systemd gettext bash-completion manpages features_check
 
+# unmerged-usr support is deprecated upstream, taints the system and will be
+# removed in the near future. Fail the build if it is not enabled.
+REQUIRED_DISTRO_FEATURES += "usrmerge"
+
 # As this recipe builds udev, respect systemd being in DISTRO_FEATURES so
 # that we don't build both udev and systemd in world builds.
-REQUIRED_DISTRO_FEATURES = "systemd"
+REQUIRED_DISTRO_FEATURES += "systemd"
 
 SRC_URI += " \
            file://touchscreen.rules \
-- 
2.39.2

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