From b43677d43520c009a6c8343c18948bc01e39689b Mon Sep 17 00:00:00 2001
From: Andrew Zigerelli <andrewzigerelli@users.noreply.github.com>
Date: Mon, 9 Mar 2020 18:47:36 -0400
Subject: [PATCH] Make '' the default arg for --extra-config-args (instead of
 None) or else ./build-qemu hangs because shlex.split(None) waits for stdin
 https://docs.python.org/3/library/shlex.html

---
 build-qemu | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/build-qemu b/build-qemu
index 054a052..de70cb6 100755
--- a/build-qemu
+++ b/build-qemu
@@ -9,7 +9,13 @@ class Main(common.BuildCliFunction):
     def __init__(self):
         super().__init__()
         self._add_argument('--configure')
-        self.add_argument('--extra-config-args')
+        self.add_argument(
+            '--extra-config-args',
+            default='',
+            help='''\
+Extra arguments to pass to configure
+'''
+        )
         self._add_argument('extra_make_args')
 
     def build(self):