# makefile for pForth
# Portable Forth written in 'C'
# by Phil Burk
# For more info visit http://www.softsynth.com/pforth/
#
# See "help" target below.

.SUFFIXES: .c .o

# Options include: PF_SUPPORT_FP PF_NO_MALLOC PF_NO_INIT PF_DEBUG
# See "docs/pf_ref.htm" file for more info.

COMPILER = gcc

PFORTHDIR   := $(shell cd ../../; pwd)
CSRCDIR      = $(PFORTHDIR)/csrc
FTHDIR       = $(PFORTHDIR)/fth

PFDICAPP     = $(FTHDIR)/pforth
PFORTHDIC    = $(FTHDIR)/pforth.dic
PFDICDAT     = ${CSRCDIR}/pfdicdat.h
PFORTHAPP    = $(PFORTHDIR)/pforth_standalone
OBJECTDIR    = $(PFORTHDIR)/objects
TEMPOBJECTDIR = $(PFORTHDIR)/tempobjects

# This is needed to get pForth to build on Snow Leopard and other 64 bit platforms.
WIDTHOPT=

FULL_WARNINGS =  \
        -fsigned-char \
        -fno-builtin \
        -fno-unroll-loops \
        -fpeephole \
        -fno-keep-inline-functions \
        -Wcast-qual \
        -Wall \
        -Wwrite-strings \
        -Winline  \
        -Wmissing-prototypes \
        -Wmissing-declarations

DEBUGOPTS = -g
CCOPTS = $(WIDTHOPT) -x c -DPF_SUPPORT_FP -O2 $(FULL_WARNINGS) $(EXTRA_CCOPTS) $(DEBUGOPTS)

IO_SOURCE = ${CSRCDIR}/posix/pf_io_posix.c
#IO_SOURCE = ${CSRCDIR}/stdio/pf_io_stdio.c

EMBCCOPTS = -DPF_STATIC_DIC

#######################################
# Build file lists from wildcards.
PFITEMP    = ${wildcard ${CSRCDIR}/*.h}
PFINCLUDES = ${PFITEMP:${CSRCDIR}/pfdicdat.h=}
PFSOURCE   = ${wildcard ${CSRCDIR}/*.c} ${IO_SOURCE}
PFTEMP     = ${PFSOURCE:%.c=%.o}
PFOBJS     = ${PFTEMP:${CSRCDIR}/%=${TEMPOBJECTDIR}/%}
PFEMBOBJS  = ${PFTEMP:${CSRCDIR}/%=${OBJECTDIR}/%}

COMPILE = $(COMPILER) $(CCOPTS) $(CDEFS)

${TEMPOBJECTDIR}/%.o:  ${TEMPOBJECTDIR} $(PFINCLUDES)  ${CSRCDIR}/%.c
	$(COMPILE) -O -o ${TEMPOBJECTDIR}/$*.o -c ${CSRCDIR}/$*.c

${OBJECTDIR}/%.o:  ${OBJECTDIR} $(PFINCLUDES) ${CSRCDIR}/%.c ${CSRCDIR}/pfdicdat.h
	$(COMPILE) -O -o ${OBJECTDIR}/$*.o -c ${CSRCDIR}/$*.c $(EMBCCOPTS)

all: $(PFORTHAPP)

pffiles:
	@echo "ITEMP FILES -----------------"
	@echo ${PFITEMP}
	@echo "INCLUDE FILES -----------------"
	@echo ${PFINCLUDES}
	@echo "'C' FILES ---------------------"
	@echo ${PFSOURCE}
	@echo "OBJECT FILES ------------------"
	@echo ${PFOBJS}
	@echo "EMBEDDED OBJECT FILES ------------------"
	@echo ${PFEMBOBJS}

${TEMPOBJECTDIR}:
	mkdir -p ${TEMPOBJECTDIR}/posix
	mkdir -p ${TEMPOBJECTDIR}/stdio

${OBJECTDIR}:
	mkdir -p ${OBJECTDIR}/posix
	mkdir -p ${OBJECTDIR}/stdio

# Build pforth by compiling 'C' source.
$(PFDICAPP): $(PFINCLUDES) $(PFOBJS)
	$(COMPILER) $(PFOBJS) $(WIDTHOPT)  -lm -o $(PFDICAPP)

# Build basic dictionary image by running newly built pforth and including "system.fth".
$(PFDICDAT): $(PFDICAPP)
	cd $(FTHDIR); $(PFDICAPP) -i system.fth ; mv pfdicdat.h $(PFDICDAT)

$(PFORTHAPP): $(PFDICDAT) $(PFEMBOBJS)
	$(COMPILER) $(PFEMBOBJS) $(WIDTHOPT) -lm -o $(PFORTHAPP)
	@echo ""
	@echo "Standalone pForth executable written to $(PFORTHAPP)"


# target aliases
pfdicapp: $(PFDICAPP)

pfdicdat: $(PFDICDAT)

pforthapp: $(PFORTHAPP)

help:
	@echo "Use 'make all' to build standalone pForth executable."
	@echo "PForth can be built in several stages using these targets:"
	@echo "   pfdicapp = executable pForth with minimal dictionary. All from 'C'."
	@echo "   pfdicdat = image of full dictionary build by compiling Forth code."
	@echo "   pforthapp = executable with embedded dictionary image. DEFAULT 'all' target."
	@echo ""
	@echo "   The file 'fth/pfdicdat.h' is generated by pForth. It contains a binary image of the Forth dictionary."
	@echo "   It allows pForth to work as a standalone image that does not need to load a dictionary file."


clean:
	rm -f $(PFOBJS) $(PFEMBOBJS)
	rm -f $(PFORTHAPP)
	rm -f $(PFDICDAT)
	rm -f $(PFORTHDIC)
	rm -f $(PFDICAPP)
	rm -rf $(OBJECTDIR) $(TEMPOBJECTDIR)