pkgconfig = $(shell PKG_CONFIG_PATH=$(PKG_CONFIG_PATH) pkg-config $(1))

ifeq ($(shell uname),Darwin)
  LIBTOOL ?= glibtool
else
  LIBTOOL ?= libtool
endif

ifneq ($(VERBOSE),1)
  LIBTOOL +=--quiet
endif

override CFLAGS +=-Wall -std=c99

ifeq ($(DEBUG),1)
  override CFLAGS +=-ggdb -DDEBUG
endif

ifeq ($(PROFILE),1)
  override CFLAGS +=-pg
  override LDFLAGS+=-pg
endif

ifeq ($(call pkgconfig, --atleast-version=0.1.0 unibilium && echo 1),1)
  override CFLAGS +=$(call pkgconfig, --cflags unibilium) -DHAVE_UNIBILIUM
  override LDFLAGS+=$(call pkgconfig, --libs   unibilium)
else ifeq ($(call pkgconfig, tinfo && echo 1),1)
  override CFLAGS +=$(call pkgconfig, --cflags tinfo)
  override LDFLAGS+=$(call pkgconfig, --libs   tinfo)
else ifeq ($(call pkgconfig, ncursesw && echo 1),1)
  override CFLAGS +=$(call pkgconfig, --cflags ncursesw)
  override LDFLAGS+=$(call pkgconfig, --libs   ncursesw)
else
  override LDFLAGS+=-lncurses
endif

OBJECTS=termkey.lo driver-csi.lo driver-ti.lo
LIBRARY=libtermkey.la

DEMOS=demo demo-async

ifeq ($(call pkgconfig, glib-2.0 && echo 1),1)
  DEMOS+=demo-glib
endif

DEMO_OBJECTS=$(DEMOS:=.lo)

TESTSOURCES=$(wildcard t/[0-9]*.c)
TESTFILES=$(TESTSOURCES:.c=.t)

VERSION_MAJOR=0
VERSION_MINOR=20

VERSION_CURRENT=15
VERSION_REVISION=0
VERSION_AGE=14

PREFIX=/usr/local
LIBDIR=$(PREFIX)/lib
INCDIR=$(PREFIX)/include
MANDIR=$(PREFIX)/share/man
MAN3DIR=$(MANDIR)/man3
MAN7DIR=$(MANDIR)/man7

all: $(LIBRARY) $(DEMOS)

%.lo: %.c termkey.h termkey-internal.h
	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(CFLAGS) -o $@ -c $<

$(LIBRARY): $(OBJECTS)
	$(LIBTOOL) --mode=link --tag=CC $(CC) -rpath $(LIBDIR) -version-info $(VERSION_CURRENT):$(VERSION_REVISION):$(VERSION_AGE) $(LDFLAGS) -o $@ $^

demo: $(LIBRARY) demo.lo
	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^

demo-async: $(LIBRARY) demo-async.lo
	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^

demo-glib.lo: demo-glib.c termkey.h
	$(LIBTOOL) --mode=compile --tag=CC $(CC) -o $@ -c $< $(call pkgconfig, glib-2.0 --cflags)

demo-glib: $(LIBRARY) demo-glib.lo
	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^ $(call pkgconfig, glib-2.0 --libs)

t/%.t: t/%.c $(LIBRARY) t/taplib.lo
	$(LIBTOOL) --mode=link --tag=CC $(CC) -o $@ $^

t/taplib.lo: t/taplib.c
	$(LIBTOOL) --mode=compile --tag=CC $(CC) $(CFLAGS) -o $@ -c $^

.PHONY: test
test: $(TESTFILES)
	prove -e ""

.PHONY: clean-test
clean-test:
	$(LIBTOOL) --mode=clean rm -f $(TESTFILES) t/taplib.lo

.PHONY: clean
clean: clean-test
	$(LIBTOOL) --mode=clean rm -f $(OBJECTS) $(DEMO_OBJECTS)
	$(LIBTOOL) --mode=clean rm -f $(LIBRARY)
	$(LIBTOOL) --mode=clean rm -rf $(DEMOS)

.PHONY: install
install: install-inc install-lib install-man
	$(LIBTOOL) --mode=finish $(DESTDIR)$(LIBDIR)

install-inc: termkey.h
	install -d $(DESTDIR)$(INCDIR)
	install -m644 termkey.h $(DESTDIR)$(INCDIR)
	install -d $(DESTDIR)$(LIBDIR)/pkgconfig
	LIBDIR=$(LIBDIR) INCDIR=$(INCDIR) sh termkey.pc.sh >$(DESTDIR)$(LIBDIR)/pkgconfig/termkey.pc

install-lib: $(LIBRARY)
	install -d $(DESTDIR)$(LIBDIR)
	$(LIBTOOL) --mode=install install libtermkey.la $(DESTDIR)$(LIBDIR)/libtermkey.la

install-man:
	install -d $(DESTDIR)$(MAN3DIR)
	install -d $(DESTDIR)$(MAN7DIR)
	for F in man/*.3; do \
	  gzip <$$F >$(DESTDIR)$(MAN3DIR)/$${F#man/}.gz; \
	done
	for F in man/*.7; do \
	  gzip <$$F >$(DESTDIR)$(MAN7DIR)/$${F#man/}.gz; \
	done
	while read FROM EQ TO; do \
	  echo ln -sf $$TO.gz $(DESTDIR)$(MAN3DIR)/$$FROM.gz; \
	done < man/also

# DIST CUT

MANSOURCE=$(wildcard man/*.3.sh)
BUILTMAN=$(MANSOURCE:.3.sh=.3)

VERSION=$(VERSION_MAJOR).$(VERSION_MINOR)

all: doc

doc: $(BUILTMAN)

%.3: %.3.sh
	sh $< >$@

clean: clean-built

clean-built:
	rm -f $(BUILTMAN) termkey.h

termkey.h: termkey.h.in Makefile
	rm -f $@
	sed -e 's/@@VERSION_MAJOR@@/$(VERSION_MAJOR)/g' \
	    -e 's/@@VERSION_MINOR@@/$(VERSION_MINOR)/g' \
	    $< >$@
	chmod a-w $@

DISTDIR=libtermkey-$(VERSION)

distdir: all
	mkdir __distdir
	cp *.c *.h LICENSE __distdir
	mkdir __distdir/t
	cp t/*.c t/*.h __distdir/t
	mkdir __distdir/man
	cp man/*.[37] man/also __distdir/man
	sed "s,@VERSION@,$(VERSION)," <termkey.pc.sh >__distdir/termkey.pc.sh
	sed "/^# DIST CUT/Q" <Makefile >__distdir/Makefile
	mv __distdir $(DISTDIR)

TARBALL=$(DISTDIR).tar.gz

dist: distdir
	tar -czf $(TARBALL) $(DISTDIR)
	rm -rf $(DISTDIR)

HTMLDIR=html

htmldocs: $(BUILTMAN)
	perl $(HOME)/src/perl/Parse-Man/examples/man-to-html.pl -O $(HTMLDIR) --file-extension tmpl --link-extension html --template home_lou.tt2 --also man/also man/*.3 man/*.7 --index index.tmpl