1 files changed, 14 insertions, 0 deletions

diff --git a/meta/classes/externalsrc.bbclass b/meta/classes/externalsrc.bbclass
index 4e429d78d8..e372392801 100644
--- a/meta/classes/externalsrc.bbclass
+++ b/meta/classes/externalsrc.bbclass
@@ -47,6 +47,20 @@ python () {
                 # Since configure will likely touch ${S}, ensure only we lock so one task has access at a time
                 d.appendVarFlag(task, "lockfiles", "${S}/singletask.lock")
 
+            # We do not want our source to be wiped out, ever (kernel.bbclass does this for do_clean)
+            cleandirs = d.getVarFlag(task, 'cleandirs', False)
+            if cleandirs:
+                cleandirs = cleandirs.split()
+                setvalue = False
+                if '${S}' in cleandirs:
+                    cleandirs.remove('${S}')
+                    setvalue = True
+                if externalsrcbuild == externalsrc and '${B}' in cleandirs:
+                    cleandirs.remove('${B}')
+                    setvalue = True
+                if setvalue:
+                    d.setVarFlag(task, 'cleandirs', ' '.join(cleandirs))
+
         for task in d.getVar("SRCTREECOVEREDTASKS", True).split():
             bb.build.deltask(task, d)