srcdir = @srcdir@
INSTALL = @INSTALL@

prefix = @prefix@
exec_prefix = @exec_prefix@
bindir = @bindir@
libdir = @libdir@
mandir = @mandir@
man1dir = $(mandir)/man1
exeext = @EXEEXT@

CC = @CC@
CFLAGS = @CFLAGS@ @WARN_CFLAGS@
CXX = @CXX@
CXXFLAGS = @CXXFLAGS@ @WARN_CFLAGS@

named_version = @PACKAGE_NAME@-@PACKAGE_VERSION@
release_version = @PACKAGE_NAME@--release--@PACKAGE_VERSION@

PCRE_CFLAGS := $(shell pcre-config --cflags)
PCRE_LIBS := $(shell pcre-config --libs)

INCLUDES = -I. -I$(srcdir) -I$(srcdir)/lib
LIBS = $(PCRE_LIBS) @LIBS@

ifeq ($(wildcard $(srcdir)/.svn/*),)
include Make.inventory
else
INVENTORY := $(shell cd $(srcdir) && perl etc/inventory.pl --files)
endif

SRC_C_FILES = $(patsubst src/%,%,$(filter src/%.cc, $(INVENTORY)))
LIB_C_FILES = $(patsubst lib/%,%,$(filter lib/%.c, $(INVENTORY)))
LIB_H_FILES = $(patsubst lib/%,%,$(filter lib/%.h, $(INVENTORY)))
PROTO_C_FILES = $(filter proto_%.cc, $(SRC_C_FILES))

DISTFILES_GENERATED = Make.inventory config.h.in stamp-h.in configure

gen_h_files = config.h
gen_c_files = gen_proto_register.cc
src_d_files = $(patsubst %.cc,src/%.d,$(SRC_C_FILES))
src_obj_files = $(patsubst %.cc, src/%.o, $(SRC_C_FILES)) $(patsubst %.cc, src/%.o, $(gen_c_files))

lib_obj_files = $(patsubst %.c, lib/%.o, $(LIB_C_FILES))
lib_depend = $(gen_h_files) \
	$(patsubst %, $(srcdir)/lib/%, $(LIB_H_FILES))

all : doscan$(exeext)

-include $(src_d_files)

install:
	$(INSTALL) -m 755 doscan$(exeext) $(DESTDIR)$(bindir)/doscan$(exeext)
	$(INSTALL) -m 644 $(srcdir)/doc/doscan.1 $(DESTDIR)$(man1dir)/doscan.1

dist:
	mkdir $(named_version)
	tar cf - -C $(srcdir) $(INVENTORY) $(DISTFILES_GENERATED) \
		| tar xf - -C $(named_version)
	cd $(named_version)/ && touch $(DISTFILES_GENERATED)
	(echo "# Automatically generated.  Do not edit." ; \
		echo ; echo "INVENTORY=$(INVENTORY)") \
		> $(named_version)/Make.inventory 
	GZIP=--best tar czf $(named_version).tar.gz $(named_version)/
	rm -rf $(named_version)

clean :
	-rm doscan
	-rm src/*.o src/*.d lib/*.o lib/*.d
	-rm src/gen_proto_register.cc
	-rm stamp-dir

distclean : clean
	-rm config.log config.status config.h stamp-h Makefile

doscan$(exeext) : stamp-dir $(src_obj_files) $(lib_obj_files)
	$(CXX) -o $@ $(src_obj_files) $(lib_obj_files) $(LIBS)

stamp-dir :
	-mkdir src
	-mkdir lib
	echo timestamp > stamp-dir

src/%.o : $(srcdir)/src/%.cc
	$(CXX) $(CFLAGS) $(PCRE_CFLAGS) $(INCLUDES) \
		-MMD -MF $(patsubst %.o,%.d, $@) \
		-c -o $@ $<

src/%.o : src/%.cc
	$(CXX) $(CFLAGS) $(PCRE_CFLAGS) $(INCLUDES) \
		-MMD -MF $(patsubst %.o,%.d, $@) \
		-c -o $@ $<

protocols = $(patsubst proto_%.cc, %, $(filter proto_%.cc, $(SRC_C_FILES)))

src/gen_proto_register.cc : $(patsubst %,$(srcdir)/src/%, $(filter proto_%.cc, $(SRC_C_FILES))) Makefile
	@echo "$@: generating"
	@echo "/* Automatically generated file.  Do not edit. */" > $@
	@echo >> $@
	@echo "void proto_register_all (void)" >> $@
	@echo "{" >> $@
	@for p in $(protocols) ; do \
		echo "  void proto_$${p}_register (void);" >> $@ ; \
	done
	@echo >> $@
	@for p in $(protocols) ; do \
		echo "  proto_$${p}_register ();" >> $@ ; \
	done
	@echo "}" >> $@

lib/%.o : $(srcdir)/lib/%.c $(lib_depend)
	$(CC) $(CFLAGS) $(PCRE_CFLAGS) $(INCLUDES) -c -o $@ $<

# Check sources for basic conformance rules.

.PHONY : check

check :
	@echo 'make: Entering directory `'`cd $(srcdir) ; pwd`"'"
	cd $(srcdir) && perl etc/check-source.pl $(INVENTORY)

# Automatic regeneration of files generated by the autoconf machinery.

# autoheader might not change config.h.in, so touch a stamp file.
$(srcdir)/config.h.in: $(srcdir)/stamp-h.in
$(srcdir)/stamp-h.in: $(srcdir)/configure.ac
	cd $(srcdir) && autoheader
	echo timestamp > $(srcdir)/stamp-h.in

$(srcdir)/config.h: stamp-h
stamp-h: $(srcdir)/config.h.in config.status
	./config.status

Makefile: $(srcdir)/Makefile.in config.status
	./config.status

config.status: $(srcdir)/configure
	./config.status --recheck