.PHONY: clean install

CS_PATH ?= /usr
MY_CFLAGS+=-I$(CS_PATH)/include/ClearSilver $(CFLAGS)
MY_CFLAGS+=$(shell Wand-config --cflags --cppflags)
MY_LDFLAGS+=$(shell Wand-config --ldflags --libs) $(LDFLAGS)

MY_CFLAGS+=$(shell pkg-config --cflags json-c)
MY_LDFLAGS+=$(shell pkg-config --libs json-c)
MY_LDFLAGS+=-ljpeg -lz
MY_LDFLAGS+=-lneo_cgi -lneo_cs -lneo_utl
OBJS=obj/main.o obj/util.o obj/galleries.o obj/gallery.o obj/varray.o \
	obj/photo.o obj/hdf-json.o obj/jpeg.o

VERSIONSTAMP=$(shell if [ -d .git ]; then git describe; else cat version; fi)
COMPILESTAMP=$(shell date "+%Y-%m-%d %H:%M:%S %z" )

gallery.cgi:	$(OBJS)
	$(CC) -o $@ $(OBJS) $(MY_LDFLAGS)
obj:
	mkdir obj

obj/%.o:	src/%.c include/%.h obj
	$(CC) -DCOMPILESTAMP='"$(COMPILESTAMP)"' \
		-DVERSIONSTAMP='"$(VERSIONSTAMP)"' \
		$(MY_CFLAGS) -I include $(CPPFLAGS) -o $@ -c $<

clean:
	rm -fr obj gallery.cgi

install:	gallery.cgi
ifeq ($(DESTDIR),)
	@echo "Usage:"
	@echo "     $(MAKE) install DESTDIR=/path/to/htdocs/dir"
	@echo "Optionally, you may specify the www group"
	@echo "with WWWGID so permissions are set appropriately."
	@exit 1
else
	@if [ -f $(DESTDIR)/gallery.cgi ]; then \
		mv $(DESTDIR)/gallery.cgi \
			$(DESTDIR)/gallery.cgi.old; \
	fi
	@install -m 0755 gallery.cgi $(DESTDIR)
	@if [ ! -d $(DESTDIR)/templates ] || [ "$(FORCE)" = "1" ]; then \
		install -m 0755 -d $(DESTDIR)/templates/images; \
		find templates -type f -exec \
			install -m 0644 "{}" "$(DESTDIR)/{}" \; \
					|| exit 1; \
	else \
		echo "Template directory already exists."; \
		echo "I'll skip installing templates to prevent"; \
		echo "existing ones being clobbered.  Run:"; \
		echo -n "    $(MAKE) install DESTDIR=$(DESTDIR) "; \
		echo    "WWWGID=$(WWWGID) FORCE=1"; \
		echo "to force installation."; \
	fi; \
	if [ "$(FORCE)" = "1" ]; then \
		echo "Template installation forced.  If your site breaks, you"; \
		echo "get to keep the pieces. ;-)"; \
	fi
ifeq ($(WWWGID),)
	@install -m 0777 -d $(DESTDIR)/cache
else
	@install -m 0775 -g $(WWWGID) -d $(DESTDIR)/cache
endif

endif