[OE-core] [PATCH] systemd: Print a buildtime warning about the status with musl

[Adrian Bunk]

It is possible if a user really has to use it, but not recommended.

Signed-off-by: Adrian Bunk <bunk at stusta.de>
---
 meta/recipes-core/systemd/systemd_242.bb | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/meta/recipes-core/systemd/systemd_242.bb b/meta/recipes-core/systemd/systemd_242.bb
index ceee3aa0cb..6fbb854886 100644
--- a/meta/recipes-core/systemd/systemd_242.bb
+++ b/meta/recipes-core/systemd/systemd_242.bb
@@ -615,6 +615,12 @@ python __anonymous() {
         d.setVar("INHIBIT_UPDATERCD_BBCLASS", "1")
 }
 
+python do_warn_musl() {
+    if d.getVar('TCLIBC') == "musl":
+        bb.warn("Using systemd with musl is not recommended since it is not supported upstream and some patches are known to be problematic.")
+}
+addtask warn_musl before do_configure
+
 ALTERNATIVE_${PN} = "halt reboot shutdown poweroff runlevel resolv-conf"
 
 ALTERNATIVE_TARGET[resolv-conf] = "${sysconfdir}/resolv-conf.systemd"
-- 
2.17.1