# shared facts.  every toolchain and port includes this via the top Makefile.

NAME     := cc65-Chess
SRCDIR   := src
BUILDDIR := build
OBJDIR   := $(BUILDDIR)/obj

# a port is a name, not a cc65 target.  toolchains and availability live elsewhere.
PORT_NAMES := apple2 atari atmos c64 c64.chr plus4 cx16 rp6502 spectrum term mac68k ti99 coco3 agon archie mega65 amiga

# built by a bare `make` when the compiler is present.  rp6502 stays off this
# list even if the picocomputer fork is installed — it was never a default.
# spectrum joins in when zcc is on PATH.  mac68k joins when Retro68 is found.
# term is host-only: `make term`.
DEFAULT_PORTS := apple2 atari atmos c64 c64.chr plus4 cx16

ENGINE_C := $(sort $(wildcard $(SRCDIR)/*.c))
ENGINE_S := $(sort $(wildcard $(SRCDIR)/*.s))

# emulator homes — prefixed to the binary, so an emulator that is not on
# PATH can be reached by exporting one of these.  `?=`, not `:=`: a plain
# assignment here would win over the environment, which is exactly what it
# used to do — `export VICE_HOME=...` was silently blanked and the recipe
# fell back to a bare `xplus4`.  The value is a prefix, so it needs its
# trailing slash: VICE_HOME=/Applications/vice-arm64-gtk3-3.10/bin/
VICE_HOME   ?=
CX16_HOME   ?=
AWIN_HOME   ?=
ORIC_HOME   ?=
ATARI_HOME  ?=
RP6502_HOME ?=

PREEMUCMD  :=
POSTEMUCMD :=

STATEFILE := $(BUILDDIR)/.options

COMMA := ,
SPACE := $(N/A) $(N/A)
define NEWLINE


endef
# do not remove the two empty lines above

# native win32 make + cmd.exe vs everyone else.  same test as the oliver
# schmidt makefile this replaced: `echo` with no args is empty on sh.
ifeq ($(shell echo),)
  MKDIR   = mkdir -p $1
  RMDIR   = rmdir $1
  RMFILES = $(RM) $1
  CP      = cp $1
  MV      = mv
  WHICH   = command -v $1 2>/dev/null
  NO_CONV =
else
  MKDIR   = mkdir $(subst /,\,$1)
  RMDIR   = rmdir $(subst /,\,$1)
  RMFILES = $(if $1,del /f $(subst /,\,$1))
  CP      = copy $(subst /,\,$1)
  MV      = ren
  WHICH   = where $1
  NO_CONV =
endif

# MSYS/Git Bash rewrites /cc65.Chess as a path.  cadius needs the slash.
ifneq ($(findstring sh,$(SHELL)),)
  NO_CONV = MSYS_NO_PATHCONV=1
endif

LLVM_MOS_CC := $(if $(LLVM_MOS_SDK),$(LLVM_MOS_SDK)/bin/mos-mega65-clang,$(shell $(call WHICH,mos-mega65-clang)))
HAVE_LLVM_MOS := $(if $(wildcard $(LLVM_MOS_CC)),1)

CL65          := $(shell $(call WHICH,cl65))
ZCC           := $(shell $(call WHICH,zcc))
Z88DK_APPMAKE := $(shell $(call WHICH,z88dk-appmake))

# Retro68 is usually not on PATH.  RETRO68 may be the toolchain prefix
# (…/toolchain) or the CMake build tree that contains it.  both are
# accepted
RETRO68 ?= Retro68-build
ifeq ($(wildcard $(RETRO68)/bin/m68k-apple-macos-gcc),)
  ifneq ($(wildcard $(RETRO68)/toolchain/bin/m68k-apple-macos-gcc),)
    RETRO68 := $(RETRO68)/toolchain
  else
    RETRO68_ON_PATH := $(shell $(call WHICH,m68k-apple-macos-gcc))
    ifneq ($(RETRO68_ON_PATH),)
      RETRO68 := $(patsubst %/bin/m68k-apple-macos-gcc,%,$(RETRO68_ON_PATH))
    endif
  endif
endif
RETRO68_CC     := $(RETRO68)/bin/m68k-apple-macos-gcc
RETRO68_REZ    := $(RETRO68)/bin/Rez
RETRO68_REZINC := $(RETRO68)/m68k-apple-macos/RIncludes

HAVE_CL65    := $(if $(CL65),1)
HAVE_ZCC     := $(if $(ZCC),1)
HAVE_CC      := $(if $(shell $(call WHICH,$(CC))),1)
HAVE_RETRO68 := $(if $(wildcard $(RETRO68)/bin/m68k-apple-macos-gcc),1)

# tms9900-gcc.  PATH first; otherwise the install this machine already has.
TMS9900_GCC := $(shell $(call WHICH,tms9900-gcc))
ifeq ($(TMS9900_GCC),)
  TMS9900_HOME ?= $(HOME)/.local/share/tms9900-gcc
  ifneq ($(wildcard $(TMS9900_HOME)/bin/tms9900-gcc),)
    TMS9900_GCC := $(TMS9900_HOME)/bin/tms9900-gcc
  endif
endif
HAVE_TMS9900 := $(if $(TMS9900_GCC),1)

# CMOC.  PATH first; otherwise the install this machine already has.
CMOC := $(shell $(call WHICH,cmoc))
ifeq ($(CMOC),)
  CMOC_HOME ?= $(HOME)/.local/share/cmaoc-0.1.100
  ifneq ($(wildcard $(CMOC_HOME)/bin/cmoc),)
    CMOC := $(CMOC_HOME)/bin/cmoc
  endif
endif
HAVE_CMOC := $(if $(CMOC),1)

# agondev.  PATH first; otherwise the install this machine already has.
AGONDEV_CONFIG := $(shell $(call WHICH,agondev-config))
ifeq ($(AGONDEV_CONFIG),)
  AGONDEV_HOME ?= /Volumes/EXTERNAL/ext-dev/agondev
  ifneq ($(wildcard $(AGONDEV_HOME)/bin/agondev-config),)
    AGONDEV_CONFIG := $(AGONDEV_HOME)/bin/agondev-config
  endif
endif
HAVE_AGONDEV := $(if $(AGONDEV_CONFIG),1)

# ArchieSDK, the ARM2 / RISC OS toolchain also used by TimePilot-Archie.
ARCHIESDK ?= $(HOME)/Develop/gitlab/archiesdk
ARCHIE_CC := $(ARCHIESDK)/tools/bin/arm-archie-gcc
HAVE_ARCHIE := $(if $(wildcard $(ARCHIE_CC)),1)

# Bartman Abyss extension.  the gcc and elf2hunk are arm64; the copy of
# FS-UAE next to them is not, so the run recipe uses a different emulator.
AMIGA_GCC ?= $(lastword $(sort $(wildcard $(HOME)/.vscode/extensions/bartmanabyss.amiga-debug-*/bin/darwin/opt/bin/m68k-amiga-elf-gcc)))
AMIGA_ELF2HUNK ?= $(lastword $(sort $(wildcard $(HOME)/.vscode/extensions/bartmanabyss.amiga-debug-*/bin/darwin/elf2hunk)))
HAVE_AMIGA := $(if $(and $(wildcard $(AMIGA_GCC)),$(wildcard $(AMIGA_ELF2HUNK))),1)

# Fab Agon emulator.  FAE_HOME is the install root, not a PATH prefix.
FAE_HOME ?= $(HOME)/.local/share/fab-agon-emulator-v1.2.5-macos-arm64

ifeq ($(HAVE_CL65),1)
  CL65_TARGET_PATH := $(shell $(CL65) --print-target-path 2>/dev/null)
  HAVE_RP6502 := $(if $(wildcard $(CL65_TARGET_PATH)/rp6502),1)
endif

# leftover root names from before products lived in build/.  zap removes them.
ROOT_LEFTOVERS := \
	cc65-Chess.apple2 cc65-Chess.atari cc65-Chess.atmos \
	cc65-Chess.c64 cc65-Chess.c64.chr cc65-Chess.cx16 cc65-Chess.plus4 \
	cc65-Chess.rp6502 \
	cc65-Chess.po cc65-Chess.dsk cc65-Chess.atr cc65-Chess.tap \
	cc65-Chess.d64 cc65-Chess-c64.prg cc65-Chess-chr.prg cc65-Chess-cx16.prg \
	cc65-Chess-rp6502.rp6502 \
	chess.po chess.system chess.system\#FF2000 chess\#064000 \
	Makefile.options