### MVP for a NMake compatible version

CC=clang
NMAKE = nmake /$(MAKEFLAGS) /nologo

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

PRIV_DIR = priv
SRC_DIR = src
C_SRC_DIR = c_src
# TODO: Find a way for nmake to support this pattern, too:
# C_SRC_C_FILES = $(sort $(wildcard $(C_SRC_DIR)/*.c))
C_SRC_C_FILES = \
    $(C_SRC_DIR)\blocks.c \
    $(C_SRC_DIR)\cmark.c \
    $(C_SRC_DIR)\commonmark.c \
    $(C_SRC_DIR)\houdini_html_e.c \
    $(C_SRC_DIR)\html.c \
    $(C_SRC_DIR)\iterator.c \
    $(C_SRC_DIR)\man.c \
    $(C_SRC_DIR)\references.c \
    $(C_SRC_DIR)\scanners.c  \
    $(C_SRC_DIR)\xml.c \
    $(C_SRC_DIR)\buffer.c \
    $(C_SRC_DIR)\cmark_ctype.c \
    $(C_SRC_DIR)\houdini_href_e.c \
    $(C_SRC_DIR)\houdini_html_u.c \
    $(C_SRC_DIR)\inlines.c \
    $(C_SRC_DIR)\latex.c \
    $(C_SRC_DIR)\node.c \
    $(C_SRC_DIR)\render.c \
    $(C_SRC_DIR)\utf8.c
C_SRC_O_FILES = $(C_SRC_C_FILES:.c=.o)
NIF_SRC = $(SRC_DIR)\cmark_nif.c
NIF_LIB=$(PRIV_DIR)\cmark.dll

OPTIONS = -shared
INCLUDES = -I"$(C_SRC_DIR)"
CFLAGS = -target x86_64-pc-windows-msvc -O2 $(INCLUDES)
CMARK_OPTFLAGS = -DNDEBUG

all: $(NIF_LIB)

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
$(NIF_LIB): $(C_SRC_O_FILES)
    if NOT EXIST "priv" mkdir "priv"
    $(CC) $(CFLAGS) -I"$(ERTS_INCLUDE_PATH)" $(OPTIONS) $(C_SRC_O_FILES) $(NIF_SRC) -o $@

!ELSE
$(NIF_LIB): Makefile.auto.win
	$(NMAKE) /F Makefile.win $(NIF_LIB)
!ENDIF

{$(C_SRC_DIR)}.c{$(C_SRC_DIR)}.o:
	$(CC) $(CMARK_OPTFLAGS) $(CFLAGS) -o $@ -c $<