Define with parenthesis not parsed

[FloSim82]

Under Ubuntu 18.04, when adding parenthesis to a define in Header file, it is not parsed with clang2py.

File lib1.h is the following :

#ifndef DEF_H
#define DEF_H

#define OS_DEF_SET      -1
#define OS_DEF_CHECK   0

#define CPU_DEF_SET   (-1)
#define CPU_DEF_CHECK  (0)

#endif

When launching the parsing with command clang2py -k emstu lib1.h, we got the following output :

# -*- coding: utf-8 -*-
(....)
DEF_H = True # macro
OS_DEF_SET = -1 # macro
OS_DEF_CHECK = 0 # macro
# def CPU_DEF_SET(-1):  # macro
#    return   
# def CPU_DEF_CHECK(0):  # macro
#    return   
__all__ = \
    ['DEF_H', 'OS_DEF_CHECK', 'OS_DEF_SET']

How could we parse defines CPU_DEF_SET and CPU_DEF_CHECK without removing the parenthesis ?