annotate src/libsndfile-1.0.25/M4/flexible_array.m4 @ 168:ceec0dd9ec9c
Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
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Chris Cannam <cannam@all-day-breakfast.com> |
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Fri, 07 Feb 2020 11:51:13 +0000 |
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545efbb81310 |
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1 dnl @synopsis MN_C99_FLEXIBLE_ARRAY
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2 dnl
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3 dnl Dose the compiler support the 1999 ISO C Standard "stuct hack".
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4 dnl @version 1.1 Mar 15 2004
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5 dnl @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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6 dnl
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7 dnl Permission to use, copy, modify, distribute, and sell this file for any
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8 dnl purpose is hereby granted without fee, provided that the above copyright
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9 dnl and this permission notice appear in all copies. No representations are
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10 dnl made about the suitability of this software for any purpose. It is
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11 dnl provided "as is" without express or implied warranty.
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12
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13 AC_DEFUN([MN_C99_FLEXIBLE_ARRAY],
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14 [AC_CACHE_CHECK(C99 struct flexible array support,
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15 ac_cv_c99_flexible_array,
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16
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17 # Initialize to unknown
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18 ac_cv_c99_flexible_array=no
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19
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20 AC_TRY_LINK([[
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21 #include <stdlib.h>
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22 typedef struct {
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23 int k;
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24 char buffer [] ;
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25 } MY_STRUCT ;
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26 ]],
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27 [ MY_STRUCT *p = calloc (1, sizeof (MY_STRUCT) + 42); ],
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28 ac_cv_c99_flexible_array=yes,
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29 ac_cv_c99_flexible_array=no
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30 ))]
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31 ) # MN_C99_FLEXIBLE_ARRAY
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32
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