#!/bin/sh

GCC="gcc"
MAKE=""
LEX=""
YACC=""
OS=""

PKG_CONFIG=`which pkg-config`
PERL=`which perl`

LOCALBASE=/usr/local
PREFIX=$LOCALBASE

VERSION=0.0.1
COMPAT_DIR="./compat"

YACC_SRC="cfg_file.y"
LEX_SRC="cfg_file.l"
YACC_OUTPUT="cfg_yacc.c"
LEX_OUTPUT="cfg_lex.c"
CONFIG="config.h"

SOURCES="upstream.c cfg_utils.c memcached.c main.c util.c worker.c fstring.c url.c perl.c protocol.c mem_pool.c filter.c plugins/surbl.c ${LEX_OUTPUT} ${YACC_OUTPUT}"
MODULES="surbl"

CFLAGS="$CFLAGS -W -Wpointer-arith -Wno-unused-parameter"
CFLAGS="$CFLAGS -Wno-unused-function -Wunused-variable -Wno-sign-compare"
CFLAGS="$CFLAGS -Wunused-value -ggdb -I${LOCALBASE}/include"
CFLAGS="$CFLAGS "
LDFLAGS="$LDFLAGS -L/usr/lib -L${LOCALBASE}/lib"
OPT_FLAGS="-O -pipe -fno-omit-frame-pointer"
DEPS="config.h cfg_file.h memcached.h util.h main.h upstream.h fstring.h url.h perl.h mem_pool.h protocol.h filter.h ${LEX_OUTPUT} ${YACC_OUTPUT}"
EXEC=rspamd
USER=postfix
GROUP=postfix
INSTALL="/usr/bin/install -v"
MKDIR="/usr/bin/install -v -d"
MANPATH="${PREFIX}/share/man"
SUBDIRS="test utils"

MAKEFILE="Makefile"
MAKEFILE_IN="Makefile.in"
PERL_MAKEFILE="perl/Makefile.PL.in"
PERLCFLAGS=""
PERLLDFLAGS=""

DEPENDS_FILE=".depends"
OPTS=""

TARGETS="${EXEC}"

prepare_config()
{
	echo "#ifndef CONFIG_H_IN" > $CONFIG
	echo "#define CONFIG_H_IN" >> $CONFIG
	cat "$CONFIG.in" >> $CONFIG
}

finish_config()
{
	echo "#endif" >> $CONFIG
}

cleanup()
{
	rm -f autotest.c
	rm -f autotest
	INCLUDE=""
}

have_opt()
{
	echo "#define HAVE_$1" >> $CONFIG
	OPTS="$OPTS HAVE_$1"
}

check_compiler()
{	
	GCC=`PATH="$PATH:$PREFIX/bin:$LOCALBASE/bin" which gcc`
	echo -n "Testing for gcc: "
	if [ -x $GCC ] ; then
		echo "found -> $GCC"
		return 0
	else
		echo "not found"
		exit 1
	fi
}

check_make()
{
	MAKE=`PATH="$PATH:$PREFIX/bin:$LOCALBASE/bin" which make`
	echo -n "Testing for make: "
	if [ -x $MAKE ] ; then
		echo "found -> $MAKE"
		return 0
	else
		echo "not found"
		exit 1
	fi

}

check_lex()
{
	LEX=`PATH="$PATH:$PREFIX/bin:$LOCALBASE/bin" which lex`
	echo -n "Testing for lex: "
	if [ -x $LEX ] ; then
		echo "found -> $LEX"
		return 0
	else
		echo "not found"
		exit 1
	fi

}

check_yacc()
{
	YACC=`PATH="$PATH:$PREFIX/bin:$LOCALBASE/bin" which yacc`
	echo -n "Testing for yacc: "
	if [ -x $YACC ] ; then
		echo "found -> $YACC"
		return 0
	else
		echo "not found"
		exit 1
	fi

}

check_function()
{
	FUNCTION=$1
	while [ $# -ne 0 -a -n $2 ] ; do 
		shift
		if [ "F$INCLUDE" = "F" ] ; then
			INCLUDE="$1"
		else
			INCLUDE="$INCLUDE $1"
		fi
	done
	echo -n "Testing for $FUNCTION: "
	echo >> config.log
	echo "Testing for $FUNCTION: " >> config.log
	echo "#include <sys/types.h>" > autotest.c
	if [ "F$INCLUDE" != "F" ] ; then
		for inc in $INCLUDE ; do
			echo "#include \"$inc\"" >> autotest.c
		done
	fi
	echo "#include <stdlib.h>" >> autotest.c
	echo "int main (int argc, char **argv) { $FUNCTION; return 0; }" >> autotest.c
	echo "$GCC $PTHREAD_CFLAGS $CFLAGS -o autotest $LDFLAGS $LIBS $PTHREAD_LDFLAGS  autotest.c" >>config.log
	$GCC $PTHREAD_CFLAGS $CFLAGS -o autotest $LDFLAGS $LIBS $PTHREAD_LDFLAGS  autotest.c >>config.log 2>&1
	if [ $? -eq 0 ] ; then 
		echo "found"
		cleanup
		echo "-> OK" >> config.log
		return 0
	else
		echo "not found"
		echo "-> FAILED" >> config.log
		echo "Failed program was:" >> config.log
		cat autotest.c >> config.log
		cleanup
		return 1
	fi
}

check_include()
{
	INCLUDE="$1"
	echo -n "Testing for $INCLUDE: "
	echo >> config.log
	echo "Testing for $INCLUDE: " >> config.log
	echo "#include <sys/types.h>" > autotest.c
	echo "#include \"$INCLUDE\"" >> autotest.c
	echo "#include <stdlib.h>" >> autotest.c
	echo "int main (int argc, char **argv) { return 0; }" >> autotest.c
	echo "$GCC $CFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PTHREAD_LDFLAGS autotest.c" >>config.log
	$GCC $CFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PTHREAD_LDFLAGS autotest.c >>config.log 2>&1
	if [ $? -eq 0 ] ; then 
		echo "found"
		echo "-> OK" >> config.log
		_CFLAG=`echo "$INCLUDE" | sed -e 's/[./]/_/g' | tr '[:lower:]' '[:upper:]'`
		have_opt $_CFLAG
		cleanup
		return 0
	else
		echo "not found"
		echo "-> FAILED" >> config.log
		echo "Failed program was:" >> config.log
		cat autotest.c >> config.log
		cleanup
		return 1
	fi
}

check_macro()
{
	MACRO=$1
	while [ $# -ne 1 -a -n $1 ] ; do 
		shift
		if [ "F$INCLUDE" = "F" ] ; then
			INCLUDE="$1"
		else
			INCLUDE="$INCLUDE $1"
		fi
	done
	echo -n "Testing for $MACRO: "
	echo >> config.log
	echo "Testing for $MACRO: " >> config.log
	echo "#include <sys/types.h>" > autotest.c
	for inc in $INCLUDE ; do
		echo "#include \"$inc\"" >> autotest.c
	done
	echo "#include \"${INCLUDE}\"" >> autotest.c
	echo "#include <stdlib.h>" >> autotest.c
	echo "int main (int argc, char **argv) {" >>autotest.c
	echo "#ifndef $MACRO" >>autotest.c
	echo "#error \"$MACRO not defined\"" >>autotest.c 
	echo "#endif" >> autotest.c
	echo "}" >>autotest.c
	echo "$GCC $CFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PTHREAD_LDFLAGS autotest.c" >> config.log
	$GCC $CFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PTHREAD_LDFLAGS autotest.c >>config.log 2>&1
	if [ $? -eq 0 ] ; then 
		echo "found"
		cleanup
		echo "-> OK" >> config.log
		return 0
	else
		echo "not found"
		echo "-> FAILED" >> config.log
		echo "Failed program was:" >> config.log
		cat autotest.c >> config.log
		cleanup
		return 1
	fi
}


check_lib()
{
	LIB=$1
	while [ $# -ne 1 -a -n $1 ] ; do 
		shift
		if [ "F$INCLUDE" = "F" ] ; then
			INCLUDE="$1"
		else
			INCLUDE="$INCLUDE $1"
		fi
	done
	echo -n "Testing for lib$LIB: "
	echo >> config.log
	echo "Testing for lib$LIB: " >> config.log
	echo "#include <sys/types.h>" > autotest.c
	if [ "F$INCLUDE" != "F" ] ; then
		for inc in $INCLUDE ; do
			echo "#include \"$inc\"" >> autotest.c
		done
	fi
	echo "#include <stdlib.h>" >> autotest.c
	echo "int main (int argc, char **argv) { return 0; }" >> autotest.c
	echo "$GCC $CFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS -l$LIB $PTHREAD_LDFLAGS autotest.c" >>config.log
	$GCC $CFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS -l$LIB $PTHREAD_LDFLAGS autotest.c >>config.log 2>&1
	if [ $? -eq 0 ] ; then 
		echo "found"
		LIBS="$LIBS -l$LIB"
		cleanup
		echo "-> OK" >> config.log
		return 0
	else
		echo "not found"
		echo "-> FAILED" >> config.log
		echo "Failed program was:" >> config.log
		cat autotest.c >> config.log
		cleanup
		return 1
	fi
}

check_package()
{
	PACKAGE=$1
	PLIBS=`$PKG_CONFIG --libs $PACKAGE`
	PCFLAGS=`$PKG_CONFIG --cflags $PACKAGE`
	while [ $# -ne 1 -a -n $1 ] ; do 
		shift
		if [ "F$INCLUDE" = "F" ] ; then
			INCLUDE="$1"
		else
			INCLUDE="$INCLUDE $1"
		fi
	done
	echo -n "Testing for $PACKAGE: "
	echo >> config.log
	echo "Testing for $PACKAGE: " >> config.log
	echo "#include <sys/types.h>" > autotest.c
	if [ "F$INCLUDE" != "F" ] ; then
		for inc in $INCLUDE ; do
			echo "#include \"$inc\"" >> autotest.c
		done
	fi
	echo "#include <stdlib.h>" >> autotest.c
	echo "int main (int argc, char **argv) { return 0; }" >> autotest.c
	echo "$GCC $CFLAGS $PCFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PLIBS $PTHREAD_LDFLAGS autotest.c" >>config.log
	$GCC $CFLAGS $PCFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PLIBS $PTHREAD_LDFLAGS autotest.c >>config.log 2>&1
	if [ $? -eq 0 ] ; then 
		echo "found"
		LIBS="$LIBS $PLIBS"
		CFLAGS="$CFLAGS $PCFLAGS"
		cleanup
		echo "-> OK" >> config.log
		return 0
	else
		echo "not found"
		echo "-> FAILED" >> config.log
		echo "Failed program was:" >> config.log
		cat autotest.c >> config.log
		cleanup
		return 1
	fi

}

check_perl()
{
	echo -n "Testing for $PERL: "
	echo >> config.log
	echo "Testing for $PERL: " >> config.log
	if [ ! -x $PERL ] ; then
		echo "not found"
		echo "-> FAILED" >> config.log
		cleanup
		return 1
	fi
	PERLCFLAGS=`$PERL -MExtUtils::Embed -e ccopts`
	PERLLDFLAGS=`$PERL -MExtUtils::Embed -e ldopts`

	echo "#include <stdlib.h>" > autotest.c
	echo "#include <EXTERN.h>" >> autotest.c
	echo "#include <perl.h>" >> autotest.c
	echo "int main (int argc, char **argv) { PERL_SYS_INIT3(&argc,&argv,&env); return 0; }" >> autotest.c
	echo "$GCC $CFLAGS $PERLCFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PERLLDFLAGS $PTHREAD_LDFLAGS autotest.c" >>config.log
	$GCC $CFLAGS $PERLCFLAGS $PTHREAD_CFLAGS -o autotest $LDFLAGS $LIBS $PERLLDFLAGS $PTHREAD_LDFLAGS autotest.c >>config.log 2>&1
	if [ $? -eq 0 ] ; then 
		echo "found"
		cleanup
		echo "-> OK" >> config.log
		return 0
	else
		echo "not found"
		echo "-> FAILED" >> config.log
		echo "Failed program was:" >> config.log
		cat autotest.c >> config.log
		cleanup
		return 1
	fi

}

check_os()
{
	_OS=`uname -s`
	case "$_OS" in
		FreeBSD*)
				OS="freebsd"
				CFLAGS="${CFLAGS}"
				INSTALL="/usr/bin/install -C -S -v"
				MKDIR="/usr/bin/install -d -v"
				MANPATH="${PREFIX}/man" 
				echo "#define FREEBSD" >> $CONFIG ;;
		Linux*)	OS="linux" CFLAGS="${CFLAGS} -D_GNU_SOURCE"  
				echo "#define LINUX" >> $CONFIG ;;
		Solaris*)	OS="solaris" CFLAGS="${CFLAGS}"
				echo "#define SOLARIS" >> $CONFIG ;;
		*)		OS="unknown"  ;;
	esac
}

check_user()
{
	_user=$1
	echo -n "Checking for user $_user: "
	grep $_user /etc/passwd > /dev/null 2>&1
	if [ $? -eq 0 ] ; then
		echo "found"
		return 0
	else
		echo "not found"
		return 1
	fi
}

check_group()
{
	_group=$1
	echo -n "Checking for group $_group: "
	grep $_group /etc/group > /dev/null 2>&1
	if [ $? -eq 0 ] ; then
		echo "found"
		return 0
	else
		echo "not found"
		return 1
	fi
}

check_depends()
{
	ifdep=""
	depends=""
	if [ ! -f $DEPENDS_FILE ] ; then
		return 0
	fi

	while read line ; do
		echo $line | grep '#if' > /dev/null
		if [ $? -eq 0 ] ; then
			ifdep=`echo $line | sed -e 's/^#if \([A-Za-z0-9_]*\)$/\1/'`
		elif [ "F$ifdep" != "F" ] ; then
			echo $line | grep "#endif" > /dev/null
			if [ $? -eq 0 ] ; then
				ifdep=""
			else
				echo $OPTS | grep $ifdep > /dev/null
				if [ $? -eq 0 ] ; then
					depends="$depends $line"
				fi
			fi
		else
			depends="$depends $line"
		fi
	done < $DEPENDS_FILE
	
	obj_depends=`echo $depends | sed -e 's/\([^ ]\{1,\}\)\/\([^/]\{1,\}\).c/\2.o/g'`
	echo "DEPENDS=$depends" >> $MAKEFILE
	echo "OBJ_DEPENDS=$obj_depends" >> $MAKEFILE
	for _dep in $depends ; do
		_obj_dep=`echo $_dep | sed -e 's/\([^ ]\{1,\}\)\/\([^/]\{1,\}\).c/\2.o/g'`
		cat >> $MAKEFILE.dep << END
${_obj_dep}: ${_dep}
	\$(CC) \$(OPT_FLAGS) \$(CFLAGS) \$(PTHREAD_CFLAGS) -o ${_obj_dep} -c ${_dep}

END

	done
}

write_modules()
{
	# Write modules init function
	echo "#ifndef MODULES_H" > modules.h
	echo "#include \"config.h\"" >> modules.h
	echo "#include \"modules.h\"" > modules.c
	echo "module_t modules[] = {" >> modules.c;
	modules_num=0
	for m in $MODULES ; do
		echo "{\"${m}\", ${m}_module_init, ${m}_module_config, ${m}_module_reconfig}," >> modules.c
		echo "int ${m}_module_init(struct config_file *cfg, struct module_ctx **ctx);" >> modules.h
		echo "int ${m}_module_config(struct config_file *cfg);" >> modules.h
		echo "int ${m}_module_reconfig(struct config_file *cfg);" >> modules.h
		modules_num=`expr $modules_num + 1`
	done
	echo "};" >> modules.c
	echo "#endif" >> modules.h
	echo "#define MODULES_NUM $modules_num" >> $CONFIG
	SOURCES="$SOURCES modules.c"
	OBJECTS=`echo $SOURCES | sed -e 's/\.c/\.o/g'`

}

write_perl()
{
	# Write to perl Makefile
	sed -e "s|%%libs%%|${LDFLAGS} ${LIBS}|" < $PERL_MAKEFILE > .pl_tmp
	sed -e "s|%%include%%|${CFLAGS}|" < .pl_tmp > .pl2_tmp
	PERL_MAKEFILE=`echo ${PERL_MAKEFILE} | sed -e 's|.in$||'`
	mv .pl2_tmp $PERL_MAKEFILE
	rm -f .pl_tmp .pl2_tmp
	CURDIR=`pwd`
	cd `dirname ${PERL_MAKEFILE}`
	$PERL Makefile.PL
	cd $CURDIR
}

write_subdirs()
{
	# Write subdirs makefiles
	clean_target="clean-subdirs: "
	dist_clean_target="dist-clean-subdirs: "
	for sub in $SUBDIRS ; do
		cp $MAKEFILE $sub/$MAKEFILE
		saved_pwd=`pwd`
		old_objs=`echo $OBJECTS | sed -e 's/\([^. ]*\.o\)/..\/\1/g'`
		old_srcs=`echo $SOURCES | sed -e 's/\([^. ]*\.c\)/..\/\1/g'`
		cd $sub
		sub_src="`echo *.c`"
		sub_obj="`echo $sub_src | sed -e 's/\.c/\.o/g'`"
		echo "SOURCES=$sub_src" >> $MAKEFILE
		echo "OBJECTS=$sub_obj" >> $MAKEFILE
		check_depends
		cat Makefile.in >> $MAKEFILE
		if [ -f $MAKEFILE.dep ] ; then
			cat $MAKEFILE.dep >> $MAKEFILE
			rm -f $MAKEFILE.dep
		fi
		for _sub_src in $sub_src ; do
			_sub_obj=`echo $_sub_src | sed -e 's/\.c/\.o/g'`
			cat >> $MAKEFILE << END
${_sub_obj}: ${_sub_src}
	\$(CC) \$(OPT_FLAGS) \$(CFLAGS) \$(PTHREAD_CFLAGS) -o ${_sub_obj} -c ${_sub_src}

END
		done
		cd $saved_pwd
		dist_clean_target="$dist_clean_target ${sub}-dist-clean"
		clean_target="$clean_target ${sub}-clean"
	done

	# Write IN file
	cat $MAKEFILE_IN >> $MAKEFILE

	# Process clean targets for all subdirs
	echo $dist_clean_target >> $MAKEFILE
	echo $clean_target >> $MAKEFILE
	for sub in $SUBDIRS ; do
		cat >> $MAKEFILE << END
${sub}-clean:
	cd ${sub} && make clean && cd ..
${sub}-dist-clean:
	cd ${sub} && make dist-clean && cd ..
${sub}:
	cd ${sub} && make && cd ..

END
	done
}

write_result()
{
	echo "Compiler: $GCC" >> config.log 
	echo "Make: $MAKE" >> config.log 
	echo "Sources: $SOURCES" >> config.log
	echo "Cflags: $CFLAGS" >> config.log
	echo "Ldflags: $LDFLAGS" >> config.log
	echo "Libs: $LIBS" >> config.log
	echo "#define RVERSION \"${VERSION}\"" >> $CONFIG
	echo "#define HASH_COMPAT" >> $CONFIG

	write_modules
	write_perl
	# Make CFLAGS more readable
	CFLAGS="$CFLAGS $PERLCFLAGS"
	LIBS="$LIBS $PERLLDFLAGS"
	CFLAGS=`echo $CFLAGS | tr [:space:] \\\n | sed -e 's/$/ \\\/' | sed -e '$,$s/\\\//' | sort -r -k2 | uniq`
	LDFLAGS=`echo $LDFLAGS | tr [:space:] \\\n | sed -e 's/$/ \\\/' | sed -e '$,$s/\\\//' | sort -r -k2 | uniq`
	LIBS=`echo $LIBS | tr [:space:] \\\n | sed -e 's/$/ \\\/' | sed -e '$,$s/\\\//' | sort -r -k2 | uniq`
	cat > $MAKEFILE << END
# This is ${EXEC} Makefile
# For options edit Makefile.in, this file is autogenerated by configure

CC=$GCC
# Optimization flags
OPT_FLAGS=$OPT_FLAGS
# Compile time flags
CFLAGS=$CFLAGS
# Link time flags
LDFLAGS=$LDFLAGS
# Libraries to link
LIBS=$LIBS
# ${EXEC} sources
SOURCES=$SOURCES
# ${EXEC} objects 
OBJECTS=$OBJECTS
# Version of product
VERION=$VERSION
# Detected operation system
OS=$OS
# Lex and yacc executables
LEX=$LEX
YACC=$YACC
# Pthread specific flags
PTHREAD_CFLAGS=$PTHREAD_CFLAGS
PTHREAD_LDFLAGS=$PTHREAD_LDFLAGS
# Prefix to install
PREFIX=$PREFIX
# Where local libs and includes are located
LOCALBASE=$LOCALBASE
# Install commands
INSTALL=$INSTALL
MKDIR=$MKDIR
# Executable name
EXEC=$EXEC
# User and group
RSPAMD_USER=$USER
RSPAMD_GROUP=$GROUP
# All target dependenses
TARGETS=$TARGETS $SUBDIRS
# Common dependenses
DEPS=$DEPS
# Path to install manual page
MANPATH=$MANPATH
# Subdirectories
SUBDIRS=$SUBDIRS

END

	write_subdirs

	# Write build targets to makefile
	cat >> $MAKEFILE << END
${EXEC}: \$(OBJECTS)
	\$(CC) \$(PTHREAD_LDFLAGS) \$(LDFLAGS) \$(OBJECTS) \$(LIBS) -o \$(EXEC)
END
	for o in $OBJECTS ; do
		SO=`echo $o | sed -e 's/\.o/\.c/g'`
		cat >> $MAKEFILE << END
${o}: \$(DEPS) ${SO}
	\$(CC) \$(OPT_FLAGS) \$(CFLAGS) \$(PTHREAD_CFLAGS) -o ${o} -c ${SO}

END
	done
	cat >> $MAKEFILE << END
${LEX_OUTPUT}: cfg_file.h ${LEX_SRC} ${YACC_OUTPUT}
	\$(LEX) -o${LEX_OUTPUT} ${LEX_SRC}

${YACC_OUTPUT}: cfg_file.h ${YACC_SRC}
	\$(YACC) -d -o ${YACC_OUTPUT} ${YACC_SRC}
END
}


for option
do
    case "$option" in
        -*=*) value=`echo "$option" | sed -e 's/[-_a-zA-Z0-9]*=//'` ;;
           *) value="" ;;
    esac

    case "$option" in
        --help)                          help=yes                  					;;
		--prefix)						 PREFIX=$value								;;
		--user)							 USER=$value								;;
		--group)						 GROUP=$value								;;
		--enable-debug)					 CFLAGS="$CFLAGS -DWITH_DEBUG" OPT_FLAGS=""	;;
		--enable-opt)                    OPT_FLAGS="-O3 -pipe"						;;
		--add-module)					 SOURCES="$SOURCES $value"
										 if [ ! -f $value ] ; then
										 	echo "Cannot find $value, please check path"
											exit 1
										 fi
										 modline=`grep '/***MODULE:' $value`
										 if [ F"$modline" = "F" ] ; then
										 	echo "Cannot find /***MODULE line in $value, please check syntax"
											exit 1
										 fi

										 name=`echo $modline | sed 's/.*MODULE:\([^: ]*\).*/\1/'`
										 MODULES="$MODULES $name"							;;
		--disable-module)				 SOURCES=`echo $SOURCES | sed -e "s/${value}//g"`
										 if [ ! -f $value ] ; then
										 	echo "Cannot find $value, please check path"
											exit 1
										 fi
										 modline=`grep '/***MODULE:' $value`
										 if [ F"$modline" = "F" ] ; then
										 	echo "Cannot find /***MODULE line in $value, please check syntax"
											exit 1
										 fi

										 name=`echo $modline | sed 's/.*MODULE:\([^: ]*\).*/\1/'`
										 MODULES=`echo $MODULES | sed -e "s/${name}//g"`		;;
		*)
            echo "$0: error: invalid option \"$option\""
            exit 1
        ;;
    esac
done

if [ "F$help" = "Fyes" ] ; then
	cat << END

  --help                             this message

  --prefix=PATH                      set the installation prefix
  --enable-debug                     turn on extra debug messages
  --enable-opt                       turn on extra optimization
  --add-module						 add additional C module
  --disable-module                   do not include C module
  --user=USER                        set user to use
  --group=GROUP                      set group to use
END
	exit 1
fi

CFLAGS="$CFLAGS -I$PREFIX/include"
LDFLAGS="$LDFLAGS -L$PREFIX/lib"

echo "Starting configure for rmilter" >config.log
echo $0 $@ >> config.log

prepare_config
check_compiler
check_make
check_lex
check_yacc
check_os

check_lib "event" "event.h"
if [ $? -eq 1 ] ; then
	echo "Libevent not found, check config.log for details"
	exit 1
fi

check_lib "pcre" "pcre.h"
if [ $? -eq 1 ] ; then
	echo "PCRE not found, check config.log for details"
	exit 1
fi

check_lib "m"
check_lib "pcre"
check_lib "md"
if [ $? -eq 1 ] ; then
	cp $COMPAT_DIR/md5.c .
	cp $COMPAT_DIR/md5.h .
	SOURCES="$SOURCES md5.c"
	DEPS="$DEPS md5.h"
	have_opt "OWN_MD5"
fi

check_lib "util"
if [ $? -eq 0 ] ; then
	have_opt "LIBUTIL"
fi

check_function "pidfile_open" "sys/param.h" "libutil.h"
if [ $? -eq 0 ] ; then
	have_opt "PIDFILE"
fi

check_function "strlcpy" "string.h"
if [ $? -eq 1 ] ; then
	cp $COMPAT_DIR/strlcpy.c .
	cp $COMPAT_DIR/strlcpy.h .
	SOURCES="$SOURCES strlcpy.c"
	DEPS="$DEPS strlcpy.h"
	have_opt "STRLCPY_H"
fi
check_function "bzero" "string.h"
check_function "srandomdev"
if [ $? -eq 0 ] ; then
	have_opt "SRANDOMDEV"
fi

check_function "getpagesize" "unistd.h"
if [ $? -eq 0 ] ; then
	have_opt "GETPAGESIZE"
fi

check_function "setproctitle" "unistd.h"
if [ $? -eq 0 ] ; then
	have_opt "SETPROCTITLE"
fi

check_include "endian.h"
check_include "libutil.h"
check_include "machine/endian.h"
check_include "sys/time.h"
check_include "time.h"
check_include "stdint.h"
if [ $? -eq 1 ] ; then
	check_include "inttypes.h"
fi
check_include "strlcpy.h"
check_include "md5.h"
check_include "sys/queue.h"
if [ $? -eq 1 ] ; then 
	cp $COMPAT_DIR/queue.h .
	DEPS="$DEPS queue.h"
fi
check_macro "SLIST_FOREACH_SAFE" "sys/queue.h"
if [ $? -eq 1 ] ; then 
	cp $COMPAT_DIR/queue.h .
	DEPS="$DEPS queue.h"
	have_opt "OWN_QUEUE_H"
fi

check_macro "PATH_MAX" "limits.h"
if [ $? -eq 1 ] ; then
	check_macro "MAXPATHLEN" "sys/param.h"
	if [ $? -eq 1 ] ; then
		have_opt "MAXPATHLEN"
		echo "#define MAXPATHLEN 4096" >> $CONFIG
	else
		have_opt "MAXPATHLEN"
	fi
else
	have_opt "PATH_MAX"
fi

check_package "glib-2.0" "glib.h"
check_package "gmime-2.0" "gmime/gmime.h"
if [ $? -eq 1 ] ; then
	echo "Package gmime-2.0 not found, check config.log for details"
	exit 1
fi

check_perl
if [ $? -eq 1 ] ; then
	echo "Perl or libperl not found, check config.log for details"
	exit 1
fi

check_group $GROUP
if [ $? -ne 0 ] ; then 
	TARGETS="$TARGETS creategroup"
fi
check_user $USER
if [ $? -ne 0 ] ; then 
	TARGETS="$TARGETS createuser"
fi
write_result
finish_config