[OE-core] [PATCH] sanity.bbclass: Ensure tmpdir exists when running the check

[Richard Purdie]

This avoids tracebacks from bitbake if the directory doesn't already
exist.

[YOCTO #3640]

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index 0ffa52d..8ca0b68 100644
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -571,6 +571,7 @@ def check_sanity(sanity_data):
             messages = messages + "Error, TMPDIR has changed location.
You need to either move it back to %s or rebuild\n" % saved_tmpdir
     else:
         f = file(checkfile, "w")
+        bb.utils.mkdirhier(tmpdir)
         f.write(tmpdir)
     f.close()