forked from Mirrors/freeswitch
5c259f26d2
Various little tweaks to spandsp to bring it into line with the master versions Addition of Ademco Contact ID protocol processing to spandsp
182 lines
5.1 KiB
Plaintext
182 lines
5.1 KiB
Plaintext
# @synopsis AX_C99_FLEXIBLE_ARRAY
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#
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# Does the compiler support the 1999 ISO C Standard "struct hack".
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# @version 1.1 Mar 15 2004
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# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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#
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# Permission to use, copy, modify, distribute, and sell this file for any
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# purpose is hereby granted without fee, provided that the above copyright
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# and this permission notice appear in all copies. No representations are
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# made about the suitability of this software for any purpose. It is
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# provided "as is" without express or implied warranty.
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AC_DEFUN([AX_C99_FLEXIBLE_ARRAY],
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[AC_CACHE_CHECK(if have C99 struct flexible array support,
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ac_cv_c99_flexible_array,
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# Initialize to unknown
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ac_cv_c99_flexible_array=no
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AC_TRY_LINK([[
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#include <stdlib.h>
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typedef struct {
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int k;
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char buffer [] ;
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} MY_STRUCT ;
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]],
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[ MY_STRUCT *p = calloc (1, sizeof (MY_STRUCT) + 42); ],
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ac_cv_c99_flexible_array=yes,
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ac_cv_c99_flexible_array=no
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))]
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) # AX_C99_FLEXIBLE_ARRAY
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# @synopsis AX_C99_FUNC_LRINT
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#
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# Check whether C99's lrint function is available.
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# @version 1.3 Feb 12 2002
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# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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#
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# Permission to use, copy, modify, distribute, and sell this file for any
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# purpose is hereby granted without fee, provided that the above copyright
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# and this permission notice appear in all copies. No representations are
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# made about the suitability of this software for any purpose. It is
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# provided "as is" without express or implied warranty.
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#
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AC_DEFUN([AX_C99_FUNC_LRINT],
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[AC_CACHE_CHECK(for lrint,
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ac_cv_c99_lrint,
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[
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lrint_save_LIBS=$LIBS
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LIBS="-lm"
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AC_TRY_LINK([
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
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LIBS=$lrint_save_LIBS
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])
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if test "$ac_cv_c99_lrint" = yes; then
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AC_DEFINE(HAVE_LRINT, 1,
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[Define if you have C99's lrint function.])
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fi
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])# AX_C99_FUNC_LRINT
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# @synopsis AX_C99_FUNC_LRINTF
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#
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# Check whether C99's lrintf function is available.
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# @version 1.3 Feb 12 2002
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# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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#
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# Permission to use, copy, modify, distribute, and sell this file for any
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# purpose is hereby granted without fee, provided that the above copyright
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# and this permission notice appear in all copies. No representations are
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# made about the suitability of this software for any purpose. It is
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# provided "as is" without express or implied warranty.
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#
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AC_DEFUN([AX_C99_FUNC_LRINTF],
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[AC_CACHE_CHECK(for lrintf,
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ac_cv_c99_lrintf,
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[
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lrintf_save_LIBS=$LIBS
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LIBS="-lm"
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AC_TRY_LINK([
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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], if (!lrintf(3.14159)) lrintf(2.7183);, ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)
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LIBS=$lrintf_save_LIBS
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])
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if test "$ac_cv_c99_lrintf" = yes; then
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AC_DEFINE(HAVE_LRINTF, 1,
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[Define if you have C99's lrintf function.])
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fi
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])# AX_C99_FUNC_LRINTF
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# @synopsis AX_C99_FUNC_LLRINT
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#
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# Check whether C99's llrint function is available.
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# @version 1.1 Sep 30 2002
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# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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#
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# Permission to use, copy, modify, distribute, and sell this file for any
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# purpose is hereby granted without fee, provided that the above copyright
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# and this permission notice appear in all copies. No representations are
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# made about the suitability of this software for any purpose. It is
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# provided "as is" without express or implied warranty.
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#
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AC_DEFUN([AX_C99_FUNC_LLRINT],
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[AC_CACHE_CHECK(for llrint,
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ac_cv_c99_llrint,
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[
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llrint_save_LIBS=$LIBS
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LIBS="-lm"
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AC_TRY_LINK([
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#define ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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], long long int x ; x = llrint(3.14159) ;, ac_cv_c99_llrint=yes, ac_cv_c99_llrint=no)
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LIBS=$llrint_save_LIBS
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])
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if test "$ac_cv_c99_llrint" = yes; then
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AC_DEFINE(HAVE_LLRINT, 1,
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[Define if you have C99's llrint function.])
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fi
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])# AX_C99_FUNC_LLRINT
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# @synopsis AX_C99_FUNC_LLRINTF
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#
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# Check whether C99's llrintf function is available.
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# @version 1.1 Sep 30 2002
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# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
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#
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# Permission to use, copy, modify, distribute, and sell this file for any
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# purpose is hereby granted without fee, provided that the above copyright
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# and this permission notice appear in all copies. No representations are
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# made about the suitability of this software for any purpose. It is
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# provided "as is" without express or implied warranty.
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#
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AC_DEFUN([AX_C99_FUNC_LLRINTF],
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[AC_CACHE_CHECK(for llrintf,
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ac_cv_c99_llrintf,
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[
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llrintf_save_LIBS=$LIBS
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LIBS="-lm"
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AC_TRY_LINK([
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#define _ISOC9X_SOURCE 1
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#define _ISOC99_SOURCE 1
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#define __USE_ISOC99 1
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#define __USE_ISOC9X 1
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#include <math.h>
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], long long int x ; x = llrintf(3.14159) ;, ac_cv_c99_llrintf=yes, ac_cv_c99_llrintf=no)
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LIBS=$llrintf_save_LIBS
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])
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if test "$ac_cv_c99_llrintf" = yes; then
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AC_DEFINE(HAVE_LLRINTF, 1,
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[Define if you have C99's llrintf function.])
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fi
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])# AX_C99_FUNC_LLRINTF
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