Hob: Fix MACHINE setting

Define the empty curr_mach to be "" instead of None.
Fix the judgement for ' if self.curr_mach == "" ' to be
' if self.curr_mach '.
Also set machine to bitbake server when "MACHINE" is not empty.

(Bitbake rev: 662fa1b126d5b9b3a80193205c22b2fe29305185)

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/bitbake/lib/bb/ui/crumbs/hobeventhandler.py b/bitbake/lib/bb/ui/crumbs/hobeventhandler.py
index a329380af3..3d5df9e6e6 100644
--- a/bitbake/lib/bb/ui/crumbs/hobeventhandler.py
+++ b/bitbake/lib/bb/ui/crumbs/hobeventhandler.py
@@ -256,7 +256,8 @@ class HobHandler(gobject.GObject):
         self.server.runCommand(["setVariable", "BBLAYERS", " ".join(bblayers)])
 
     def set_machine(self, machine):
-        self.server.runCommand(["setVariable", "MACHINE", machine])
+        if machine:
+            self.server.runCommand(["setVariable", "MACHINE", machine])
 
     def set_sdk_machine(self, sdk_machine):
         self.server.runCommand(["setVariable", "SDKMACHINE", sdk_machine])