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/local)	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, "${configdir}", [Directory for the configuration files])])AC_DEFUN([AC_ARG_BLUEZ], [	fortify_enable=yes	debug_enable=no	AC_ARG_ENABLE(fortify, AC_HELP_STRING([--disable-fortify], [disable compile time buffer checks]), [		fortify_enable=${enableval}	])	AC_ARG_ENABLE(debug, AC_HELP_STRING([--enable-debug], [enable compiling with debugging information]), [		debug_enable=${enableval}	])	if (test "${fortify_enable}" = "yes"); then		CFLAGS="$CFLAGS -D_FORTIFY_SOURCE=2"	fi	if (test "${debug_enable}" = "yes" && test "${ac_cv_prog_cc_g}" = "yes"); then		CFLAGS="$CFLAGS -g"	fi])