GHC=@GHC@
NHC98=@NHC98@
HMAKE=@HMAKE@

HAPPY=@HAPPY@
ALEX=@ALEX@

INSTALL=@INSTALL@
STRIP=@STRIP@
FALSE=@FALSE@
LN=@LN@
SH=@SH@
RM=@RM@
RMF=$(RM) -f

prefix=@prefix@
exec_prefix=@exec_prefix@
bindir=@bindir@

GHC_OPTS   = @GHC_FLAGS@ -ialex -ihsparser -ihtmllibs @GHC_FLAGS_USER@
NHC98_OPTS = @NHC98_RTS_FLAGS@ +CTS @NHC98_CTS_FLAGS@ -CTS \
		-Ialex -Ihsparser -Ihtmllibs @NHC98_FLAGS_USER@

HDOC=hdoc@EXE@

VERSION = 0.8.3

ALLHS = $(wildcard *.hs) $(wildcard hsparser/*.lhs) \
	$(wildcard htmllibs/*.lhs) alex/Alex.hs

# make sure that the generated files only appear once in SRCS
GEN_INPUT = Scanner.x Parser.y hsparser/HsParser.ly $(wildcard stdlibs/*.in)
GEN_FILES = $(filter-out $(GEN_INPUT), \
		$(patsubst %.ly,%.hs,$(patsubst %.y,%.hs, \
			$(patsubst %.x,%.hs,$(GEN_INPUT))))) \
	    ThePrelude.hs Version.hs
NON_GEN   = $(filter-out $(GEN_FILES), $(ALLHS))
SRCS      = $(NON_GEN) $(GEN_FILES)

hdoc: @BUILD@

.PHONY: ghc5
ghc5: gen
	$(GHC) -o $(HDOC) $(GHC_OPTS) --make Main
	$(STRIP) $(HDOC)

.PHONY: hmake-ghc
hmake-ghc: gen
	$(HMAKE) -HC=$(GHC) $(GHC_OPTS) Main
	mv Main $(HDOC)
	$(STRIP) $(HDOC)

# NHC98 can now compile HDoc just fine :-)
.PHONY: hmake-nhc98
hmake-nhc98: gen
	$(HMAKE) -HC=$(NHC98) $(NHC98_OPTS) Main 
	mv Main $(HDOC)
	$(STRIP) $(HDOC)

Scanner.hs: Scanner.x
	$(ALEX) $< $@

%.hs: %.y
	$(HAPPY) -i $<

%.hs: %.ly
	$(HAPPY) $<

ThePrelude.hs: $(wildcard stdlibs/*.in)
	$(SH) ./makePrelLibs.sh $(wildcard stdlibs/*.in)


install: hdoc
	$(INSTALL) -d $(bindir)
	$(INSTALL) $(HDOC) $(bindir)

uninstall:
	$(RMF) $(bindir)/$(HDOC)


Version.hs: Makefile
	echo  >Version.hs "module Version(version) where"
	echo >>Version.hs "version = \"HDoc version $(VERSION)\""

.PHONY: clean
clean:
	$(RMF) $(HDOC) *.o *.hi examples/*/*.html examples/*/*.css \
	        hdoc-*.tar* *.bak \
		*~ */*~ examples/*/*~ htmllibs/*.o htmllibs/*.hi \
		alex/*.o alex/*.hi hsparser/*.o hsparser/*.hi

.PHONY: distclean
distclean: clean
	$(RMF) config.* makePrelLibs.sh Makefile

.PHONY: realclean
realclean: distclean
	$(RMF) $(GEN_FILES) Parser.info configure

.PHONY: gen
gen: $(GEN_FILES)



#########

DISTFILES = $(SRCS) $(GEN_INPUT) Makefile.in hdoc-hugs.sh makePrelLibs.sh.in \
	    configure.in configure install-sh \
	    htmllibs/License COPYING INSTALL README ChangeLog \
	    RELEASE KNOWN_PROBLEMS patches/*.diff \
	    docs/hdoc.pdf examples/*/*.hs

# cp below must be GNU cp !
.PHONY: dist
dist: gen
	rm -rf hdoc-$(VERSION)
	mkdir hdoc-$(VERSION)
	cp -Rp --parents $(DISTFILES) hdoc-$(VERSION)
	tar -cf hdoc-$(VERSION).tar  hdoc-$(VERSION)
	rm -rf hdoc-$(VERSION)