1 files changed, 13 insertions, 0 deletions

diff --git a/bitbake/lib/bb/cooker.py b/bitbake/lib/bb/cooker.py
index 955fbb434c..0eda9eed99 100644
--- a/bitbake/lib/bb/cooker.py
+++ b/bitbake/lib/bb/cooker.py
@@ -73,6 +73,19 @@ class BBCooker:
         self.configuration.event_data = bb.data.createCopy(self.configuration.data)
         bb.data.update_data(self.configuration.event_data)
 
+        #
+        # TOSTOP must not be set or our children will hang when they output
+        #
+        fd = sys.stdout.fileno()
+        if os.isatty(fd):
+            import termios
+            tcattr = termios.tcgetattr(fd)
+            if tcattr[3] & termios.TOSTOP:
+                bb.msg.note(1, bb.msg.domain.Build, "The terminal had the TOSTOP bit set, clearing...")
+                tcattr[3] = tcattr[3] & ~termios.TOSTOP
+                termios.tcsetattr(fd, termios.TCSANOW, tcattr)
+
+
     def tryBuildPackage(self, fn, item, task, the_data, build_depends):
         """
         Build one task of a package, optionally build following task depends