[Qemu-devel] [PATCH] qapi: Fix cgen() for Python older than 2.7

[Markus Armbruster]

A feature new in Python 2.7 crept into commit 77e703b: re.subn()'s
fifth argument.  Avoid that, use re.compile().

Reported-by: Laurent Desnogues <address@hidden>
Signed-off-by: Markus Armbruster <address@hidden>
---
 scripts/qapi.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/qapi.py b/scripts/qapi.py
index 817d824..88fa073 100644
--- a/scripts/qapi.py
+++ b/scripts/qapi.py
@@ -944,7 +944,9 @@ def cgen(code, **kwds):
     raw = code % kwds
     if indent_level:
         indent = genindent(indent_level)
-        raw = re.subn("^.", indent + r'\g<0>', raw, 0, re.MULTILINE)
+        # re.subn() lacks flags support before Python 2.7, use re.compile()
+        raw = re.subn(re.compile("^.", re.MULTILINE),
+                      indent + r'\g<0>', raw)
         raw = raw[0]
     return re.sub(re.escape(eatspace) + ' *', '', raw)
 
-- 
2.4.3