The D-Bus type system isn't implementable without 64-bit support, although
for historical reasons we have some sort of semi-working support for
platforms with no 64-bit integers. Let's find out whether any
practically relevant platform still lacks these types...
(GLib appears to have required 64-bit integer types since 2001.)
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=35114
Reviewed-by: Lennart Poettering <lennart@poettering.net>
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)
AC_CHECK_SIZEOF(long long)
AC_CHECK_SIZEOF(__int64)
+AC_ARG_WITH([64-bit],
+ [AS_HELP_STRING([--without-64-bit],
+ [If you have to use this option, please report it as a bug])],
+ [],
+ [with_64_bit=yes])
+
### See what our 64 bit type is called
AC_MSG_CHECKING([64-bit integer type])
### See what our 64 bit type is called
AC_MSG_CHECKING([64-bit integer type])
-if test -z "$dbusint64" ; then
+AS_IF(
+ [test "x$with_64_bit" = xno],
+ [
DBUS_INT64_TYPE="no_int64_type_detected"
DBUS_HAVE_INT64=0
DBUS_INT64_CONSTANT=
DBUS_UINT64_CONSTANT=
DBUS_INT64_TYPE="no_int64_type_detected"
DBUS_HAVE_INT64=0
DBUS_INT64_CONSTANT=
DBUS_UINT64_CONSTANT=
- AC_MSG_RESULT([none found])
-else
+ AC_MSG_RESULT([disabled via --without-64-bit])
+ ],
+ dnl else if
+ [test -z "$dbusint64"],
+ [AC_MSG_RESULT([not found])
+ AC_MSG_ERROR([Could not find a 64-bit integer type.
+
+Please report a bug here with details of your platform and compiler:
+
+ http://bugs.freedesktop.org/enter_bug.cgi?product=DBus&component=core
+
+To compile D-Bus with all 64-bit integer types removed (not recommended), use
+the option "--without-64-bit".
+
+This option is likely to be removed in future, unless you report that your
+platform needs it.])
+ ],
+ dnl else
+ [
DBUS_INT64_TYPE="$dbusint64"
DBUS_HAVE_INT64=1
DBUS_INT64_CONSTANT="$dbusint64_constant"
DBUS_INT64_TYPE="$dbusint64"
DBUS_HAVE_INT64=1
DBUS_INT64_CONSTANT="$dbusint64_constant"
AC_DEFINE_UNQUOTED(DBUS_INT64_PRINTF_MODIFIER, [$dbusint64_printf_modifier], [Define to printf modifier for 64 bit integer type])
fi
AC_MSG_RESULT($DBUS_INT64_TYPE)
AC_DEFINE_UNQUOTED(DBUS_INT64_PRINTF_MODIFIER, [$dbusint64_printf_modifier], [Define to printf modifier for 64 bit integer type])
fi
AC_MSG_RESULT($DBUS_INT64_TYPE)
AC_SUBST(DBUS_INT64_TYPE)
AC_SUBST(DBUS_INT64_CONSTANT)
AC_SUBST(DBUS_INT64_TYPE)
AC_SUBST(DBUS_INT64_CONSTANT)
echo
echo "WARNING: You have chosen to use libxml as your xml parser however this code path is not maintained by the D-Bus developers and if it breaks you get to keep the pieces. If you have selected this option in err please reconfigure with expat (e.g. --with-xml=expat)."
fi
echo
echo "WARNING: You have chosen to use libxml as your xml parser however this code path is not maintained by the D-Bus developers and if it breaks you get to keep the pieces. If you have selected this option in err please reconfigure with expat (e.g. --with-xml=expat)."
fi
+
+if test "x$DBUS_HAVE_INT64" = x0; then
+ AC_MSG_WARN([You have disabled 64-bit integers via --without-64-bit.
+
+ This removes parts of the standard D-Bus API and ABI (the 't' and 'x'
+ typecodes, the dbus_int64_t and dbus_uint64_t types, etc.) and should only be
+ used if your compiler lacks support for 64-bit integers. Please report a bug
+ with details of your platform and compiler.
+
+ This option is likely to be removed in future, unless the D-Bus developers
+ receive reports that it is still needed.
+ ])
+fi