!IF [where /Q Makefile.auto.win]
# The file doesn't exist, so don't include it.
!ELSE
!INCLUDE Makefile.auto.win
!ENDIF

NMAKE = nmake /$(MAKEFLAGS)
MIX = mix
CFLAGS = /O2 /EHsc

NIF_SRC=\
  src\crc_nif.c\
  src\crc_16_ccitt.c\
  src\crc_16_modbus.c

all: crc

crc:
	$(MIX) compile

Makefile.auto.win:
	echo # Auto-generated as part of Makefile.win, do not modify. > $@
	erl -eval "io:format(\"~s~n\", [lists:concat([\"ERTS_INCLUDE_PATH=\", code:root_dir(), \"/erts-\", erlang:system_info(version), \"/include\"])])" -s init stop -noshell >> $@

!IFDEF ERTS_INCLUDE_PATH
priv\crc_nif.dll:
	$(CC) $(CFLAGS) /I"$(ERTS_INCLUDE_PATH)" /LD /MD /Fe$@ $(NIF_SRC)
!ELSE
priv\crc_nif.dll: Makefile.auto.win
	$(NMAKE) /F Makefile.win priv\crc_nif.dll
!ENDIF