Do not force -O0
Do not force -O0

Defaults should be safe, -O0 may break builds where FORTIFY_SOURCE is
used by default.

hmvp/python-tdbus,Jajcus/python-tdbus,hmvp/python-tdbus,DanLipsitt/python-tdbus,Jajcus/python-tdbus,DanLipsitt/python-tdbus