MI / Python tests failing on my machine (x86_64)

Hi there, 

I'm experimenting with Didier Nadeau's patches for python-defined
MI commands [1]

I tried to compile recent gdb (25c5412713ba) and then run MI and python
tests to ensure all is OK before I start hacking. 

I run these tests using:

make check RUNTESTFLAGS='TRANSCRIPT=y gdb.mi/*.exp gdb.python/*.exp' 

but 58 tests seems to fail: 

# of expected passes		4810
# of unexpected failures	58
# of expected failures		9
# of known failures		13
# of untested testcases		3
# of unsupported tests		1

For GDB 8.0.0 (1f1c02597cc1) test results are the same on my machine.
I compiled gdb on Linux (Debian Jessie if that matters) using simple

   ./configure && make

Is that expected? Do I need to perform some additional setup to run
tests? 

Thanks, Jan



[1]: https://sourceware.org/ml/gdb/2017-06/msg00010.html