dac.err

PIC16F877A RTC1307 LCD 16x2 keypad 4x4 and a windows application connect with PIC on RS232

>>> Warning 208 "DAC.c" Line 598(1,10): Function not void and does not return a value  RSgetchar
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (@delay_ms1)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (lcd_send_nibble)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (lcd_send_byte)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (@MUL88)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (lcd_putc)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (lcd_gotoxy)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (send_message)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (lcd_read_byte)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (@I2C_WRITE_1)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (read_time)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (display_bcd)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (@DIV88)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (day_of_week)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (rd_time)
>>> Warning 216 "DAC.c" Line 1311(0,1): Interrupts disabled during call to prevent re-entrancy:  (init_time)
      Memory usage:   ROM=90%      RAM=12% - 59%
      0 Errors,  16 Warnings.