--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/config/ax_c99_features.m4	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,181 @@
+# @synopsis AX_C99_FLEXIBLE_ARRAY
+#
+# Does the compiler support the 1999 ISO C Standard "struct hack".
+# @version 1.1    Mar 15 2004
+# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+#
+# Permission to use, copy, modify, distribute, and sell this file for any 
+# purpose is hereby granted without fee, provided that the above copyright 
+# and this permission notice appear in all copies.  No representations are
+# made about the suitability of this software for any purpose.  It is 
+# provided "as is" without express or implied warranty.
+
+AC_DEFUN([AX_C99_FLEXIBLE_ARRAY],
+[AC_CACHE_CHECK(if have C99 struct flexible array support, 
+    ac_cv_c99_flexible_array,
+
+# Initialize to unknown
+ac_cv_c99_flexible_array=no
+
+AC_TRY_LINK([[
+    #include <stdlib.h>
+
+    typedef struct {
+    int k;
+    char buffer [] ;
+    } MY_STRUCT ;
+    ]], 
+    [  MY_STRUCT *p = calloc (1, sizeof (MY_STRUCT) + 42); ],
+    ac_cv_c99_flexible_array=yes,
+    ac_cv_c99_flexible_array=no
+    ))]
+) # AX_C99_FLEXIBLE_ARRAY
+
+# @synopsis AX_C99_FUNC_LRINT
+#
+# Check whether C99's lrint function is available.
+# @version 1.3    Feb 12 2002
+# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+#
+# Permission to use, copy, modify, distribute, and sell this file for any 
+# purpose is hereby granted without fee, provided that the above copyright 
+# and this permission notice appear in all copies.  No representations are
+# made about the suitability of this software for any purpose.  It is 
+# provided "as is" without express or implied warranty.
+#
+AC_DEFUN([AX_C99_FUNC_LRINT],
+[AC_CACHE_CHECK(for lrint,
+  ac_cv_c99_lrint,
+[
+lrint_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define _ISOC9X_SOURCE  1
+#define _ISOC99_SOURCE  1
+#define __USE_ISOC99    1
+#define __USE_ISOC9X    1
+
+#include <math.h>
+], if (!lrint(3.14159)) lrint(2.7183);, ac_cv_c99_lrint=yes, ac_cv_c99_lrint=no)
+
+CFLAGS=$lrint_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_lrint" = yes; then
+  AC_DEFINE(HAVE_LRINT, 1,
+            [Define if you have C99's lrint function.])
+fi
+])# AX_C99_FUNC_LRINT
+
+# @synopsis AX_C99_FUNC_LRINTF
+#
+# Check whether C99's lrintf function is available.
+# @version 1.3    Feb 12 2002
+# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+#
+# Permission to use, copy, modify, distribute, and sell this file for any 
+# purpose is hereby granted without fee, provided that the above copyright 
+# and this permission notice appear in all copies.  No representations are
+# made about the suitability of this software for any purpose.  It is 
+# provided "as is" without express or implied warranty.
+#
+AC_DEFUN([AX_C99_FUNC_LRINTF],
+[AC_CACHE_CHECK(for lrintf,
+  ac_cv_c99_lrintf,
+[
+lrintf_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define _ISOC9X_SOURCE  1
+#define _ISOC99_SOURCE  1
+#define __USE_ISOC99    1
+#define __USE_ISOC9X    1
+
+#include <math.h>
+], if (!lrintf(3.14159)) lrintf(2.7183);, ac_cv_c99_lrintf=yes, ac_cv_c99_lrintf=no)
+
+CFLAGS=$lrintf_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_lrintf" = yes; then
+  AC_DEFINE(HAVE_LRINTF, 1,
+            [Define if you have C99's lrintf function.])
+fi
+])# AX_C99_FUNC_LRINTF
+
+# @synopsis AX_C99_FUNC_LLRINT
+#
+# Check whether C99's llrint function is available.
+# @version 1.1    Sep 30 2002
+# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+#
+# Permission to use, copy, modify, distribute, and sell this file for any 
+# purpose is hereby granted without fee, provided that the above copyright 
+# and this permission notice appear in all copies.  No representations are
+# made about the suitability of this software for any purpose.  It is 
+# provided "as is" without express or implied warranty.
+#
+AC_DEFUN([AX_C99_FUNC_LLRINT],
+[AC_CACHE_CHECK(for llrint,
+  ac_cv_c99_llrint,
+[
+llrint_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define ISOC9X_SOURCE   1
+#define _ISOC99_SOURCE  1
+#define __USE_ISOC99    1
+#define __USE_ISOC9X    1
+
+#include <math.h>
+], long long int x ; x = llrint(3.14159) ;, ac_cv_c99_llrint=yes, ac_cv_c99_llrint=no)
+
+CFLAGS=$llrint_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_llrint" = yes; then
+  AC_DEFINE(HAVE_LLRINT, 1,
+            [Define if you have C99's llrint function.])
+fi
+])# AX_C99_FUNC_LLRINT
+
+
+# @synopsis AX_C99_FUNC_LLRINTF
+#
+# Check whether C99's llrintf function is available.
+# @version 1.1    Sep 30 2002
+# @author Erik de Castro Lopo <erikd AT mega-nerd DOT com>
+#
+# Permission to use, copy, modify, distribute, and sell this file for any 
+# purpose is hereby granted without fee, provided that the above copyright 
+# and this permission notice appear in all copies.  No representations are
+# made about the suitability of this software for any purpose.  It is 
+# provided "as is" without express or implied warranty.
+#
+AC_DEFUN([AX_C99_FUNC_LLRINTF],
+[AC_CACHE_CHECK(for llrintf,
+  ac_cv_c99_llrintf,
+[
+llrintf_save_CFLAGS=$CFLAGS
+CFLAGS="-lm"
+AC_TRY_LINK([
+#define _ISOC9X_SOURCE  1
+#define _ISOC99_SOURCE  1
+#define __USE_ISOC99    1
+#define __USE_ISOC9X    1
+
+#include <math.h>
+], long long int x ; x = llrintf(3.14159) ;, ac_cv_c99_llrintf=yes, ac_cv_c99_llrintf=no)
+
+CFLAGS=$llrintf_save_CFLAGS
+
+])
+
+if test "$ac_cv_c99_llrintf" = yes; then
+  AC_DEFINE(HAVE_LLRINTF, 1,
+            [Define if you have C99's llrintf function.])
+fi
+])# AX_C99_FUNC_LLRINTF