CBMS = c128   \
       c16    \
       c64    \
       cbm510 \
       cbm610 \
       pet    \
       plus4  \
       vic20

GEOS = geos-apple \
       geos-cbm

TARGETS = $(CBMS)   \
          $(GEOS)   \
          apple2    \
          apple2enh \
          atari     \
          atmos     \
          lynx      \
          nes       \
          supervision

DRVTYPES = emd \
           joy \
           mou \
           ser \
           tgi

# Every target requires its individual vpath setting but the vpath directive
# acts globally. Therefore each target is built in a separate make instance.

ifeq ($(words $(MAKECMDGOALS)),1)
  ifeq ($(MAKECMDGOALS),$(filter $(MAKECMDGOALS),$(TARGETS)))
    TARGET = $(MAKECMDGOALS)
  endif
endif

.SUFFIXES:

.PHONY: all $(TARGETS) mostlyclean clean

ifndef TARGET

all: $(TARGETS)

$(TARGETS):
	@$(MAKE) --no-print-directory $@

mostlyclean:
	$(RM) -r ../wrk

clean: mostlyclean
	$(RM) -r ../lib $(addprefix ../,$(DRVTYPES))

else # TARGET

CFLAGS += -Osir

EXTZP = cbm510 \
        cbm610 \
        lynx

MKINC = $(GEOS) \
        atari   \
        nes

GEOSDIRS = common      \
           conio       \
           disk        \
           dlgbox      \
           file        \
           graph       \
           memory      \
           menuicon    \
           mousesprite \
           process     \
           runtime     \
           system

ifeq ($(TARGET),apple2enh)
  OBJPFX = a2
  DRVPFX = a2e
  DIRS = apple2
else
  DIRS = $(TARGET)
endif

ifeq ($(TARGET),$(filter $(TARGET),$(CBMS)))
  DIRS += cbm
endif

ifeq ($(TARGET),$(filter $(TARGET),$(GEOS)))
  DIRS += $(addprefix $(TARGET)/,  $(GEOSDIRS))
  DIRS += $(addprefix geos-common/,$(GEOSDIRS))
endif

DIRS += common   \
        conio    \
        dbg      \
        em       \
        joystick \
        mouse    \
        runtime  \
        serial   \
        tgi      \
        zlib

vpath %.s $(DIRS)
vpath %.c $(DIRS)

OBJS := $(patsubst %.s,%.o,$(foreach dir,$(DIRS),$(wildcard $(dir)/*.s)))
OBJS += $(patsubst %.c,%.o,$(foreach dir,$(DIRS),$(wildcard $(dir)/*.c)))

OBJS := $(addprefix ../wrk/$(TARGET)/,$(sort $(notdir $(OBJS))))

DEPS = $(OBJS:.o=.d)

ZPOBJ = ../wrk/$(TARGET)/zeropage.o
ifeq ($(TARGET),$(filter $(TARGET),$(EXTZP)))
  ZPOBJ += ../wrk/$(TARGET)/extzp.o
endif

ifeq ($(TARGET),$(filter $(TARGET),$(MKINC)))
  include $(TARGET)/Makefile.inc
endif

##########

define DRVTYPE_template

$1_SRCDIR = $$(firstword $$(DIRS))/$1
$1_OBJDIR = ../wrk/$$(TARGET)/$1
$1_DRVDIR = ../$1

$1_OBJPAT = $$($1_OBJDIR)/$$(OBJPFX)%.o
$1_DRVPAT = $$($1_DRVDIR)/$$(DRVPFX)%.$1
$1_STCPAT = ../wrk/$$(TARGET)/$$(DRVPFX)%-$1.o

$1_OBJS := $$(patsubst $$($1_SRCDIR)/%.s,$$($1_OBJDIR)/%.o,$$(wildcard $$($1_SRCDIR)/*.s))

$1_DRVS = $$(patsubst $$($1_OBJPAT),$$($1_DRVPAT),$$($1_OBJS))

$1_STCS = $$(patsubst $$($1_DRVPAT),$$($1_STCPAT),$$($1_DRVS))

$$($1_OBJS): | $$($1_OBJDIR)

$$($1_OBJDIR):
	mkdir -p $$@

$$($1_DRVPAT): $$($1_OBJPAT) $$(ZPOBJ) | $$($1_DRVDIR)
	$$(LD) -o $$@ -t module $$^

$$($1_DRVDIR):
	mkdir $$@

$(TARGET): $$($1_DRVS)

$$($1_STCPAT): $$($1_DRVPAT)
	$$(CO) -o $$(@:.o=.s) --code-label _$$(subst -,_,$$(subst .,_,$$(<F))) $$<
	@$$(CA) -t $$(TARGET) -o $$@ $$(@:.o=.s)

OBJS += $$($1_STCS)

DEPS += $$($1_OBJS:.o=.d)

endef

##########

$(foreach drvtype,$(DRVTYPES),$(eval $(call DRVTYPE_template,$(drvtype))))

ifdef CC65_HOME
  AR = $(CC65_HOME)/bin/ar65
  CA = $(CC65_HOME)/bin/ca65
  CC = $(CC65_HOME)/bin/cc65
  CO = $(CC65_HOME)/bin/co65
  LD = $(CC65_HOME)/bin/ld65
else
  AR = ../bin/ar65
  CA = ../bin/ca65
  CC = ../bin/cc65
  CO = ../bin/co65
  LD = ../bin/ld65
endif

../wrk/$(TARGET)/%.o: %.s | ../wrk/$(TARGET)
	$(CA) -t $(TARGET) $(AFLAGS) --create-dep $(@:.o=.d) -o $@ $<

../wrk/$(TARGET)/%.o: %.c | ../wrk/$(TARGET)
	$(CC) -t $(TARGET) $(CFLAGS) --create-dep $(@:.o=.d) -o $(@:.o=.s) $<
	@$(CA) -t $(TARGET) -o $@ $(@:.o=.s)

../wrk/$(TARGET):
	mkdir -p $@

../lib/$(TARGET).lib: $(OBJS) | ../lib
	$(AR) a $@ $?

../lib:
	mkdir $@

$(TARGET): ../lib/$(TARGET).lib

-include $(DEPS)

endif # TARGET