MAIN_PATH     = uni110
MAIN_SRC      = src
SRCS          = Def Ex Inter Util
SRC_PATHS     = $(addprefix $(MAIN_SRC)/,$(SRCS))
TEX_PATHS     = def inter
PIC_PATH      = pic
THIS          = Makefile
MAIN          = uni110

TEX_EXT       = tex
BIB_EXT       = bib
LHS_EXT       = lhs
PIC_EXTS      = eps tex
PS_EXT        = ps
DVI_EXT       = dvi
TEX_OBJ_EXTS  = aux bbl blg lof log toc
TAR_EXT       = tgz
GHC_OBJ_EXTS  = {o,hi}

TEX_FILES     = $(MAIN).$(BIB_EXT) $(wildcard *.$(TEX_EXT))                   \
                $(wildcard $(addsuffix /*.$(TEX_EXT),$(TEX_PATHS)))
TEX_OBJ_FILES = $(addprefix $(MAIN).,$(TEX_OBJ_EXTS))
SRC_FILES     = $(wildcard $(addsuffix /*.$(LHS_EXT),$(MAIN_SRC) $(SRC_PATHS)))
GHC_OBJ_FILES = $(addsuffix /*.$(GHC_OBJ_EXTS),$(MAIN_SRC) $(SRC_PATHS))
PIC_FILES     = $(addprefix $(PIC_PATH)/*.,$(PIC_EXTS))
INP_FILES     = $(TEX_FILES) $(SRC_FILES) $(PIC_FILES) $(THIS)
PAP_FILES     = $(MAIN).$(DVI_EXT) $(MAIN).$(PS_EXT)
ALL_FILES     = $(INP_FILES) $(PIC_FILES) $(PAP_FILES) $(MAIN_SRC)/$(BOILER)  \
                $(THIS)

LATEX         = latex \\nonstopmode\\input
BIBTEX        = bibtex
DVIPS         = dvips -D 600
TAR           = tar -cvzf
HUGS          = hugs
GHC_PARAMS    = -syslib data -syslib text -fallow-undecidable-instances \
                -fglasgow-exts -fallow-overlapping-instances \
                -Wall $(addprefix -i,$(SRC_PATHS))
GHCI          = ghci $(GHC_PARAMS)
GHC           = ghc --make -O2 $(GHC_PARAMS)

BOILER        = Boiler.hs
PROG_NAMES    = Demo1 Demo2 Ex1 Ex2 Ex3
PROGS         = $(addsuffix .prog,$(PROG_NAMES))		

###############################################################################

.PHONY: all

all: ps progs bakclean objclean

###############################################################################

.PHONY: h hugs i ghci $(BOILER) progs

doSTACKED = pushd $(MAIN_SRC) ; $(1) ; popd

h hugs: $(BOILER)
	$(call doSTACKED,$(HUGS) $<)

i ghci: $(BOILER)
	$(call doSTACKED,$(GHCI) $<)

%.prog: $(SRC_FILES)
	$(call doSTACKED,$(GHC) $* -o $*.prog)

progs: $(PROGS)

###############################################################################

.PHONY: $(PS_EXT) $(DVI_EXT)

$(DVI_EXT): $(MAIN).$(DVI_EXT)
$(PS_EXT): $(MAIN).$(PS_EXT)

doTEX = $(1) $(MAIN) ; $(BIBTEX) $(MAIN) ; $(1) $(MAIN) ; $(1) $(MAIN)

$(MAIN).$(DVI_EXT): $(INP_FILES)
	$(call doTEX,$(LATEX))

$(MAIN).$(PS_EXT): $(MAIN).$(DVI_EXT)
	$(DVIPS) $(MAIN)

###############################################################################

.PHONY: pack

pack: $(ALL_FILES) bakclean objclean prgclean
	$(TAR) ../$(MAIN).$(TAR_EXT) -C .. $(MAIN_PATH)/

###############################################################################

.PHONY: bakclean objclean clean

bakclean:
	rm -f $(addsuffix ~,$(ALL_FILES) $(TEX_OBJ_FILES))

objclean:
	rm -f $(TEX_OBJ_FILES) $(GHC_OBJ_FILES)

prgclean:
	rm -f $(addprefix $(MAIN_SRC)/,$(PROGS))

clean: bakclean objclean prgclean
	rm -f $(PAP_FILES)