#
# Copyright (C) 2009-2016 Olof Hagsand and Benny Holmgren
#
# This file is part of CLIXON.
#
# CLIXON is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# CLIXON is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with CLIXON; see the file LICENSE.  If not, see
# <http://www.gnu.org/licenses/>.
#

VPATH       	= @srcdir@
srcdir  	= @srcdir@
top_srcdir  	= @top_srcdir@
CC		= @CC@
CFLAGS  	= @CFLAGS@ 
LDFLAGS 	= @LDFLAGS@

prefix 		= @prefix@
exec_prefix 	= @exec_prefix@
bindir 		= @bindir@
libdir		= @libdir@
sbindir 	= @sbindir@
libexecdir	= @libexecdir@
localstatedir	= @localstatedir@
sysconfdir	= @sysconfdir@
includedir	= @includedir@

SH_SUFFIX	= @SH_SUFFIX@
CLIXON_MAJOR    = @CLIXON_VERSION_MAJOR@
CLIXON_MINOR    = @CLIXON_VERSION_MINOR@

# Use this clixon lib for linking
CLIXON_LIB	= libclixon.so.$(CLIXON_MAJOR).$(CLIXON_MINOR)
# Location of system plugins
CLIXON_BACKEND_SYSDIR = $(libdir)/clixon/plugins/backend

# For dependency. A little strange that we rely on it being built in the src dir
# even though it may exist in $(libdir). But the new version may not have been installed yet.
LIBDEPS		= $(top_srcdir)/lib/src/$(CLIXON_LIB) 

LIBS    	= -L$(top_srcdir)/lib/src @LIBS@ -l:$(CLIXON_LIB) -lpthread
CPPFLAGS  	= @CPPFLAGS@ -fPIC
INCLUDES	= -I. -I$(top_srcdir)/lib/src -I$(top_srcdir)/lib -I$(top_srcdir)/include -I$(top_srcdir) @INCLUDES@

# Not accessible from plugin
APPSRC  = backend_main.c backend_socket.c backend_client.c \
	backend_commit.c backend_plugin.c 

APPOBJ  = $(APPSRC:.c=.o)
APPL	= clixon_backend

#SHLIB	= clixon_backend
MYNAME		= clixon_backend
MYLIBLINK       = lib$(MYNAME)$(SH_SUFFIX)
MYLIB           = $(MYLIBLINK).$(CLIXON_MAJOR).$(CLIXON_MINOR)
MYLIBSO         = $(MYLIBLINK).$(CLIXON_MAJOR)

# Accessible from plugin
LIBSRC	= clixon_backend_transaction.c clixon_backend_handle.c
LIBOBJ	= $(LIBSRC:.c=.o)

all:	  $(MYLIB) $(APPL) test

clean:
	rm -f *.core $(APPL) $(APPOBJ) $(LIBOBJ) $(MYLIB) $(MYLIBSO) $(MYLIBLINK)

distclean: clean
	rm -f Makefile *~ .depend test test.c

# Put demon in bin 
# Put other executables in libexec/
# Also create a libexec/ directory for writeable/temporary files.
# Put config file in etc/
install:	install-lib	$(APPL)
	install -d $(DESTDIR)$(sbindir)
	install $(APPL) $(DESTDIR)$(sbindir)

install-lib:	$(MYLIB)
	install -d $(DESTDIR)$(libdir)
	install $(MYLIB) $(DESTDIR)$(libdir)
	ln -sf $(MYLIB) $(DESTDIR)$(libdir)/$(MYLIBSO)	   # -l:libclixon_config.so.2
	ln -sf $(MYLIBSO) $(DESTDIR)$(libdir)/$(MYLIBLINK) # -l:libclixon_config.so
	install -d $(DESTDIR)$(libdir)/clixon/plugins/backend

uninstall:
	rm -f $(sbindir)/$(APPL)
	rm -f $(libdir)/$(MYLIB)
	rm -f $(includedir)/clixon/*

install-include: clixon_backend.h clixon_backend_handle.h clixon_backend_transaction.h
	install -d $(DESTDIR)$(includedir)/clixon
	install -m 644 $^ $(DESTDIR)$(includedir)/clixon

.SUFFIXES:
.SUFFIXES: .c .o

.c.o:
	$(CC) $(INCLUDES) -D__PROGRAM__=\"$(APPL)\" -DCLIXON_BACKEND_SYSDIR=\"$(CLIXON_BACKEND_SYSDIR)\" $(CPPFLAGS) $(CFLAGS) -c $<

# Just link test programs
test.c	:
	echo "main(){}" > $@

test: 	test.c $(LIBOBJ) 
	$(CC) $(INCLUDES) $(LDFLAGS) $< $(LIBOBJ) -L. -l:$(MYLIB) $(LIBS) -o $@

$(APPL) : $(APPOBJ) $(MYLIBLINK) $(LIBDEPS)
	$(CC) $(LDFLAGS) $(APPOBJ) $(OBJS) -L. -l:$(MYLIB) $(LIBS) -o $@

$(MYLIB): $(LIBOBJ)
	$(CC) $(LDFLAGS) -shared -Wl,-soname,$(MYLIBSO) -o $@ -lc $(LIBOBJ) -Wl,-soname=$(MYLIBSO)

# link-name is needed for application linking, eg for clixon_cli and clixon_backend
$(MYLIBLINK) : $(MYLIB)
#	ln -sf $(MYLIB) $(MYLIBSO)
#	ln -sf $(MYLIB) $@

TAGS:
	find . -name '*.[chyl]' -print | etags -

depend:
	$(CC) $(DEPENDFLAGS) @DEFS@ $(INCLUDES) $(CFLAGS) -MM $(SRC) $(APPSRC) > .depend

#include .depend