cannam@125: dnl @synopsis MN_C99_FLEXIBLE_ARRAY
cannam@125: dnl
cannam@125: dnl Dose the compiler support the 1999 ISO C Standard "stuct hack".
cannam@125: dnl @version 1.1	Mar 15 2004
cannam@125: dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
cannam@125: dnl
cannam@125: dnl Permission to use, copy, modify, distribute, and sell this file for any 
cannam@125: dnl purpose is hereby granted without fee, provided that the above copyright 
cannam@125: dnl and this permission notice appear in all copies.  No representations are
cannam@125: dnl made about the suitability of this software for any purpose.  It is 
cannam@125: dnl provided "as is" without express or implied warranty.
cannam@125: 
cannam@125: AC_DEFUN([MN_C99_FLEXIBLE_ARRAY],
cannam@125: [AC_CACHE_CHECK(C99 struct flexible array support, 
cannam@125: 	ac_cv_c99_flexible_array,
cannam@125: 
cannam@125: # Initialize to unknown
cannam@125: ac_cv_c99_flexible_array=no
cannam@125: 
cannam@125: AC_TRY_LINK([[
cannam@125: 	#include <stdlib.h>
cannam@125: 	typedef struct {
cannam@125: 	int k;
cannam@125: 	char buffer [] ;
cannam@125: 	} MY_STRUCT ;
cannam@125: 	]], 
cannam@125: 	[  MY_STRUCT *p = calloc (1, sizeof (MY_STRUCT) + 42); ],
cannam@125: 	ac_cv_c99_flexible_array=yes,
cannam@125: 	ac_cv_c99_flexible_array=no
cannam@125: 	))]
cannam@125: ) # MN_C99_FLEXIBLE_ARRAY
cannam@125: