# Run 'make SYS=<target>'; or, set a SYS env.
# var. to build for another target system.
SYS ?= c64

# Just the usual way to find out if we're
# using cmd.exe to execute make rules.
ifneq ($(shell echo),)
  CMD_EXE = 1
endif

ifdef CMD_EXE
  NULLDEV = nul:
  DEL = -del /f
  RMDIR = rmdir /s /q
else
  NULLDEV = /dev/null
  DEL = $(RM)
  RMDIR = $(RM) -r
endif

ifdef CC65_HOME
  AS = $(CC65_HOME)/bin/ca65
  CC = $(CC65_HOME)/bin/cc65
  CL = $(CC65_HOME)/bin/cl65
  LD = $(CC65_HOME)/bin/ld65
else
  AS := $(if $(wildcard ../../../bin/ca65*),../../../bin/ca65,ca65)
  CC := $(if $(wildcard ../../../bin/cc65*),../../../bin/cc65,cc65)
  CL := $(if $(wildcard ../../../bin/cl65*),../../../bin/cl65,cl65)
  LD := $(if $(wildcard ../../../bin/ld65*),../../../bin/ld65,ld65)
endif

all: petscii.prg

petscii.prg: petscii.c
	$(CL) -t $(SYS) -O -o petscii.prg petscii.c

clean:
	$(DEL) petscii.prg
