Check for __attribute__((__noreturn__)). (Bug 57).

configure.in

-dnl $Id: configure.in,v 1.77 2001/11/11 16:47:42 ceder Exp $
+dnl $Id: configure.in,v 1.78 2001/12/28 21:21:04 ceder Exp $
 dnl Configuration for LysKOM
 dnl Copyright (C) 1993-2001  Lysator Academic Computer Association.
 dnl
@@ -18,7 +18,7 @@ dnl Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 dnl
 dnl Please mail bug reports to bug-lyskom@lysator.liu.se. 
 dnl
-AC_REVISION($Revision: 1.77 $)
+AC_REVISION($Revision: 1.78 $)
 AC_INIT([lyskom-server], [2.0.5])
 AC_CONFIG_SRCDIR([src/server/lyskomd.h])
 AM_CONFIG_HEADER(config.h)
@@ -233,6 +233,16 @@ AC_MSG_RESULT($kom_cv_c_attribute_format_printf)
 [if test $kom_cv_c_attribute_format_printf = yes ; then]
   AC_DEFINE(HAVE_ATTRIBUTE_FORMAT_PRINTF)
 [fi]
+AC_MSG_CHECKING([if the compiler understands __attribute__ ((__noreturn__))])
+AC_CACHE_VAL([kom_cv_c_attribute_noreturn],
+[AC_TRY_COMPILE([extern void log (const char *f, ...) 
+__attribute__ ((__noreturn__));],,
+[kom_cv_c_attribute_noreturn=yes],
+[kom_cv_c_attribute_noreturn=no])])
+AC_MSG_RESULT($kom_cv_c_attribute_noreturn)
+[if test $kom_cv_c_attribute_noreturn = yes ; then]
+  AC_DEFINE(HAVE_ATTRIBUTE_NORETURN)
+[fi]
 AC_PROG_INSTALL
 AC_PROG_RANLIB
 AC_PROG_AWK