dnl
dnl  $Id$
dnl

AC_DEFUN([AC_PROG_CC_PIE], [
	AC_CACHE_CHECK([whether ${CC-cc} accepts -fPIE], ac_cv_prog_cc_pie, [
		echo 'void f(){}' > conftest.c
		if test -z "`${CC-cc} -fPIE -pie -c conftest.c 2>&1`"; then
			ac_cv_prog_cc_pie=yes
		else
			ac_cv_prog_cc_pie=no
		fi
		rm -rf conftest*
	])
])

AC_DEFUN([AC_INIT_BLUEZ], [
	AC_PREFIX_DEFAULT(/usr)

	if (test "${CFLAGS}" = ""); then
		CFLAGS="-Wall -O2"
	fi

	if (test "${prefix}" = "NONE"); then
		dnl no prefix and no sysconfdir, so default to /etc
		if (test "$sysconfdir" = '${prefix}/etc'); then
			AC_SUBST([sysconfdir], ['/etc'])
		fi

		dnl no prefix and no mandir, so use ${prefix}/share/man as default
		if (test "$mandir" = '${prefix}/man'); then
			AC_SUBST([mandir], ['${prefix}/share/man'])
		fi

		prefix="${ac_default_prefix}"
	fi

	if (test "${libdir}" = '${exec_prefix}/lib'); then
		libdir="${prefix}/lib"
	fi

	if (test "$sysconfdir" = '${prefix}/etc'); then
		configdir="${prefix}/etc/bluetooth"
	else
		configdir="${sysconfdir}/bluetooth"
	fi

	AC_DEFINE_UNQUOTED(CONFIGDIR, "${configdir}", [Directory for the configuration files])
])

AC_DEFUN([AC_PATH_BLUEZ], [
	bluez_prefix=${prefix}

	AC_ARG_WITH(bluez, AC_HELP_STRING([--with-bluez=DIR], [BlueZ library is installed in DIR]), [
		if (test "${withval}" != "yes"); then
			bluez_prefix=${withval}
		fi
	])

	ac_save_CPPFLAGS=$CPPFLAGS
	ac_save_LDFLAGS=$LDFLAGS

	BLUEZ_CFLAGS=""
	test -d "${bluez_prefix}/include" && BLUEZ_CFLAGS="$BLUEZ_CFLAGS -I${bluez_prefix}/include"

	CPPFLAGS="$CPPFLAGS $BLUEZ_CFLAGS"
	AC_CHECK_HEADER(bluetooth/bluetooth.h,, AC_MSG_ERROR(Bluetooth header files not found))

	BLUEZ_LIBS=""
	if (test "${prefix}" = "${bluez_prefix}"); then
		test -d "${libdir}" && BLUEZ_LIBS="$BLUEZ_LIBS -L${libdir}"
	else
		test -d "${bluez_prefix}/lib64" && BLUEZ_LIBS="$BLUEZ_LIBS -L${bluez_prefix}/lib64"
		test -d "${bluez_prefix}/lib" && BLUEZ_LIBS="$BLUEZ_LIBS -L${bluez_prefix}/lib"
	fi

	LDFLAGS="$LDFLAGS $BLUEZ_LIBS"
	AC_CHECK_LIB(bluetooth, hci_open_dev, BLUEZ_LIBS="$BLUEZ_LIBS -lbluetooth", AC_MSG_ERROR(Bluetooth library not found))
	AC_CHECK_LIB(bluetooth, sdp_connect,, AC_CHECK_LIB(sdp, sdp_connect, BLUEZ_LIBS="$BLUEZ_LIBS -lsdp"))

	CPPFLAGS=$ac_save_CPPFLAGS
	LDFLAGS=$ac_save_LDFLAGS

	AC_SUBST(BLUEZ_CFLAGS)
	AC_SUBST(BLUEZ_LIBS)
])

AC_DEFUN([AC_ARG_BLUEZ], [
	debug_enable=no
	pie_enable=no

	AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [enable compiling with debugging information]), [
		debug_enable=${enableval}
	])

	AC_ARG_ENABLE(pie, AC_HELP_STRING([--enable-pie], [enable position independent executables flag]), [
		pie_enable=${enableval}
	])

	if (test "${debug_enable}" = "yes" && test "${ac_cv_prog_cc_g}" = "yes"); then
		CFLAGS="$CFLAGS -g"
	fi

	if (test "${pie_enable}" = "yes" && test "${ac_cv_prog_cc_pie}" = "yes"); then
		CFLAGS="$CFLAGS -fPIE"
		LDFLAGS="$LDFLAGS -pie"
	fi
])