# To be used only with GNU Make

OSTYPE := $(shell uname -s)

ifeq ($(OSTYPE), FreeBSD)
 	CFLAGS+=-Wall ${PTHREAD_CFLAGS} -DPREFIX='"${PREFIX}"' -DRUNDIR='"${RUNDIR}"'
	CFLAGS+=-DSYNONYM_USER='"${SYNONYM_USER}"' -DSYNONYM_GROUP='"${SYNONYM_GROUP}"'
	SYNONYM_USER=${SYNONYMOWN}
	SYNONYM_GROUP=${SYNONYMGRP}
	INCLUDEPATH=-I${LOCALBASE}/include/libxml2 -I${LOCALBASE}/include
	LIBXML=-lxml2 ${PTHREAD_LIBS}

	SYNONYM_BINDIR=$(SYNONYM_BASEDIR)${PREFIX}/sbin
	SYNONYM_RUNDIR=$(SYNONYM_BASEDIR)${RUNDIR}
	SYNONYM_SCRIPTDIR=$(SYNONYM_BASEDIR)${PREFIX}/etc/rc.d
	SYNONYM_SCRIPT_NAME=synonym.sh
	SYNONYM_CONFIGDIR=$(SYNONYM_BASEDIR)/${PREFIX}/etc
	SYNONYM_DOCDIR=$(SYNONYM_BASEDIR)${DOCSDIR}
endif

ifeq ($(OSTYPE), Linux)
	CC=gcc -Wall
	SYNONYM_USER=mail
	SYNONYM_GROUP=mail
	PTHREAD=-lpthread
	INCLUDEPATH=-I/usr/include/libxml2
	LIBXML=-lxml2
	EXTRA_LIBS=-lcrypt

	SYNONYM_BINDIR=$(SYNONYM_BASEDIR)/usr/local/sbin
	SYNONYM_RUNDIR=$(SYNONYM_BASEDIR)/var/run/synonym
	SYNONYM_SCRIPTDIR=$(SYNONYM_BASEDIR)/etc/rc.d/init.d
	SYNONYM_SCRIPT_NAME=synonym
	SYNONYM_CONFIGDIR=$(SYNONYM_BASEDIR)/etc
	SYNONYM_DOCDIR=$(SYNONYM_BASEDIR)/usr/share/doc/synonym
endif

ifeq ($(OSTYPE), SunOS)
	CC=gcc -Wall
	SYNONYM_USER=daemon
	SYNONYM_GROUP=daemon
	PTHREAD=-lpthread
	INCLUDEPATH=-I/usr/local/include -I/usr/local/include/libxml2 -I/usr/local/include
	LIBXML=-lxml2
	EXTRA_LIBS=-lresolv -lsocket -lnsl

	SYNONYM_BINDIR=$(SYNONYM_BASEDIR)/usr/local/sbin
	SYNONYM_RUNDIR=$(SYNONYM_BASEDIR)/var/run/synonym
	SYNONYM_SCRIPTDIR=$(SYNONYM_BASEDIR)/etc/init.d
	SYNONYM_SCRIPT_NAME=synonym.sh
	SYNONYM_CONFIGDIR=$(SYNONYM_BASEDIR)/etc
	SYNONYM_DOCDIR=$(SYNONYM_BASEDIR)/usr/share/doc/synonym
endif

# This will be set to "$location/c-client.a -lpam" if we find a location with the c-client libraries
CCLIENTLIB := $(shell (echo "/lib" && echo "/usr/lib" && echo "/usr/local/lib" && if test -f /etc/ld.so.conf ; then cat /etc/ld.so.conf ; fi) | while read libpath && [ \( "$$FOUND" != "1" \) ]; do if [ -f $$libpath/c-client.a ] ; then echo "$$libpath/c-client.a -lpam";FOUND=1 ; fi; done)
ifneq ($(strip $(CCLIENTLIB)),)
	CCLIENTINCLUDE := $(shell (echo "/usr/include" && echo "/usr/include/c-client" && echo "/usr/local/include" && echo "/usr/local/include/c-client/") | while read incpath && [ \( "$$FOUND" != "1" \) ]; do if [ -f $$incpath/flstring.h ] ; then echo "-L$$incpath/";FOUND=1 ; fi; done)
	ifeq ($(strip $(CCLIENTINCLUDE)),)
		CCLIENTLIB=
	endif
endif

# If desired, please uncomment the following two lines, indicating the location of the c-client lib and headers, if other than the system default
# Also, please remember to have -lpam in the CCLIENTLIB variable - PAM is only used by c-client for now
# CCLIENTLIB= /usr/lib/my-cclient/c-client.a -pam
# CCLIENTINCLUDE= -L/usr/include/my-cclient/ 

# Define the target, if the includes are present
ifneq ($(strip $(CCLIENTLIB)),)
	ifneq ($(strip $(CCLIENTINCLUDE)),)
		DISCLAIMER=disclaimer.o html_parser.o body_parser.o scan.o
		DISCLAIMER_DEFINE = -DDISCLAIMER_SUPPORT
	endif
endif


# This variable will be void if libsmutil.a does not exist (and hence is not needed) on the system
LIBSMUTIL := $(shell (echo "/lib" && echo "/usr/lib" && echo "/usr/local/lib" && if test -f /etc/ld.so.conf ; then cat /etc/ld.so.conf ; fi) | while read libpath && [ \( "$$FOUND" != "1" \) ]; do if [ -f $$libpath/libsmutil.a ] ; then echo "-lsmutil";FOUND=1 ; fi; done)

LIBPATH=-L${LOCALBASE}/lib



all: synonym

synonym: synonym.o config.o filtering.o $(DISCLAIMER)
	$(CC) ${CFLAGS} ${LDFLAGS} synonym.o $(DISCLAIMER) -lmilter config.o filtering.o $(PTHREAD) -o synonym $(LIBSMUTIL) $(LIBPATH) $(LIBXML) $(CCLIENTLIB) $(EXTRA_LIBS)

synonym.o: synonym.c synonym.h config.h filtering.h
	$(CC) $(CFLAGS) -c synonym.c $(DISCLAIMER_DEFINE) -o synonym.o $(INCLUDEPATH) 

config.o: config.c config.h synonym.h
	$(CC) $(CFLAGS) -c config.c $(DISCLAIMER_DEFINE) -o config.o $(INCLUDEPATH)

filtering.o: filtering.c filtering.h synonym.h
	$(CC) $(CFLAGS) -c filtering.c $(DISCLAIMER_DEFINE) -o filtering.o $(INCLUDEPATH)

html_parser.o: html_parser.c html_parser.h
	$(CC) $(CFLAGS) -c html_parser.c -o html_parser.o $(INCLUDEPATH)

disclaimer.o: disclaimer.c disclaimer.h html_parser.o scan.o
	$(CC) $(CFLAGS) -c disclaimer.c -o disclaimer.o $(INCLUDEPATH) $(CCLIENTINCLUDE)

scan.o: scan.c
	$(CC) $(CFLAGS) -c scan.c -o scan.o $(INCLUDEPATH)

body_parser.o: body_parser.c body_parser.h
	$(CC) $(CFLAGS) -c body_parser.c -o body_parser.o $(INCLUDEPATH) $(CCLIENTINCLUDE)

filtering.h: milter_data.h
	@touch filtering.h
clean:
	@rm -f synonym synonym.o config.o filtering.o disclaimer.o html_parser.o scan.o

install_rpm: synonym
	@install -d $(SYNONYM_BINDIR)
	@cp -f synonym $(SYNONYM_BINDIR)
	@install -d $(SYNONYM_SCRIPTDIR)
	@cp -f scripts/$(SYNONYM_SCRIPT_NAME) $(SYNONYM_SCRIPTDIR)
	@install -d $(SYNONYM_CONFIGDIR)
# Only install the config file if it does not already exist.
	@if [ -f  $(SYNONYM_CONFIGDIR)/synonym.conf ] ; then echo "Configuration file already exists. Installing as synonym.conf.new" ; cp synonym.conf $(SYNONYM_CONFIGDIR)/synonym.conf.new ; else cp -f synonym.conf $(SYNONYM_CONFIGDIR) ; fi
	@install -d $(SYNONYM_DOCDIR)
	@cp -f README license.txt $(SYNONYM_DOCDIR)
	@install -d $(SYNONYM_RUNDIR)

install: install_rpm
	@chown $(SYNONYM_USER):$(SYNONYM_GROUP) $(SYNONYM_RUNDIR)