//==============================================
File: mild_guss1_beg.txt
Args: BALANCE=23

#ifndef BALANCE
BALANCE not known
#else
BALANCE is $(BALANCE)
#endif 

//----------------------------------------------
File: mild_guss1_tar.txt

BALANCE is 23

//==============================================
File: mild_guss2_beg.txt
Args: 

#ifndef BALANCE
BALANCE not known
#else
BALANCE is $(BALANCE)
#endif 

//----------------------------------------------
File: mild_guss2_tar.txt

BALANCE not known