FYI: fix PR python/13199

[Tom Tromey]

I'm checking this in on the trunk.

This changes the Python startup to set sys.argv.
This is needed by some Python modules.

I think it is best to set argv this way, because we don't have any
scripting support.  We may add this (the old branch has 'gdb -P'), but
in the meantime this fixes a problem.

Tom

2012-01-10  Tom Tromey  <tromey@redhat.com>

	PR python/13199:
	* python/python.c (finish_python_initialization): Set sys.argv.

diff --git a/gdb/python/python.c b/gdb/python/python.c
index b0b9a9c..61386a5 100644
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -1369,6 +1369,9 @@ def GdbSetPythonDirectory (dir):\n\
 GdbSetPythonDirectory (gdb.PYTHONDIR)\n\
 # Default prompt hook does nothing.\n\
 prompt_hook = None\n\
+# Ensure that sys.argv is set to something.\n\
+# We do not use PySys_SetArgvEx because it did not appear until 2.6.6.\n\
+sys.argv = ['']\n\
 ");
 
   do_cleanups (cleanup);