[SOLVED] mpy-cross: build error with MINGW

[robert-hh]

An attempt to build mpy-cross leads to an build error:

LINK mpy-cross                                                                                                         
build/py/modbuiltins.o:modbuiltins.c:(.rdata$mp_module_builtins_globals_table+0x294): undefined reference to `mp_type_TimeoutError'                                                                                                             
collect2.exe: error: ld returned 1 exit status                                                                          

Compiler version:
gcc (i686-win32-dwarf-rev1, Built by MinGW-W64 project) 6.2.0
The same happens on an attempt to build micropython for windows.
Building on debian works fine, and building on Windows was possible before, at least on sep 25, 2017.
This error is not related to the latest build. using the previous build also fails.

[robert-hh]

SOLVED: I had to add the line:

#define MICROPY_PY_BUILTINS_TIMEOUTERROR (1)

to mpconfigport.h in mpy-cross and windows.