--- mqtt/configure	2013/01/18 09:43:26	1.3
+++ mqtt/configure	2017/10/08 22:49:24	1.4
@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for mqtt 1.3.
+# Generated by GNU Autoconf 2.69 for mqtt 2.0.
 #
 # Report bugs to <misho@elwix.org>.
 #
@@ -580,8 +580,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='mqtt'
 PACKAGE_TARNAME='mqtt'
-PACKAGE_VERSION='1.3'
-PACKAGE_STRING='mqtt 1.3'
+PACKAGE_VERSION='2.0'
+PACKAGE_STRING='mqtt 2.0'
 PACKAGE_BUGREPORT='misho@elwix.org'
 PACKAGE_URL=''
 
@@ -1246,7 +1246,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures mqtt 1.3 to adapt to many kinds of systems.
+\`configure' configures mqtt 2.0 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1312,7 +1312,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of mqtt 1.3:";;
+     short | recursive ) echo "Configuration of mqtt 2.0:";;
    esac
   cat <<\_ACEOF
 
@@ -1403,7 +1403,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-mqtt configure 1.3
+mqtt configure 2.0
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -1826,7 +1826,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by mqtt $as_me 1.3, which was
+It was created by mqtt $as_me 2.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -2181,6 +2181,9 @@ ac_config_headers="$ac_config_headers inc/config.h"
 
 
 
+ac_cv_func_malloc_0_nonnull="yes"
+ac_cv_func_realloc_0_nonnull="yes"
+
 # Checks for programs.
 ac_ext=c
 ac_cpp='$CPP $CPPFLAGS'
@@ -3577,13 +3580,13 @@ _ACEOF
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for crcFletcher16 in -laitcrc" >&5
-$as_echo_n "checking for crcFletcher16 in -laitcrc... " >&6; }
-if ${ac_cv_lib_aitcrc_crcFletcher16+:} false; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ait_allocVar in -lelwix" >&5
+$as_echo_n "checking for ait_allocVar in -lelwix... " >&6; }
+if ${ac_cv_lib_elwix_ait_allocVar+:} false; then :
   $as_echo_n "(cached) " >&6
 else
   ac_check_lib_save_LIBS=$LIBS
-LIBS="-laitcrc  $LIBS"
+LIBS="-lelwix  $LIBS"
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -3593,80 +3596,35 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 #ifdef __cplusplus
 extern "C"
 #endif
-char crcFletcher16 ();
+char ait_allocVar ();
 int
 main ()
 {
-return crcFletcher16 ();
+return ait_allocVar ();
   ;
   return 0;
 }
 _ACEOF
 if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_aitcrc_crcFletcher16=yes
+  ac_cv_lib_elwix_ait_allocVar=yes
 else
-  ac_cv_lib_aitcrc_crcFletcher16=no
+  ac_cv_lib_elwix_ait_allocVar=no
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 LIBS=$ac_check_lib_save_LIBS
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_aitcrc_crcFletcher16" >&5
-$as_echo "$ac_cv_lib_aitcrc_crcFletcher16" >&6; }
-if test "x$ac_cv_lib_aitcrc_crcFletcher16" = xyes; then :
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_elwix_ait_allocVar" >&5
+$as_echo "$ac_cv_lib_elwix_ait_allocVar" >&6; }
+if test "x$ac_cv_lib_elwix_ait_allocVar" = xyes; then :
   cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBAITCRC 1
+#define HAVE_LIBELWIX 1
 _ACEOF
 
-  LIBS="-laitcrc $LIBS"
+  LIBS="-lelwix $LIBS"
 
 fi
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for io_allocVar in -laitio" >&5
-$as_echo_n "checking for io_allocVar in -laitio... " >&6; }
-if ${ac_cv_lib_aitio_io_allocVar+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  ac_check_lib_save_LIBS=$LIBS
-LIBS="-laitio  $LIBS"
-cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-/* Override any GCC internal prototype to avoid an error.
-   Use char because int might match the return type of a GCC
-   builtin and then its argument prototype would still apply.  */
-#ifdef __cplusplus
-extern "C"
-#endif
-char io_allocVar ();
-int
-main ()
-{
-return io_allocVar ();
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"; then :
-  ac_cv_lib_aitio_io_allocVar=yes
-else
-  ac_cv_lib_aitio_io_allocVar=no
-fi
-rm -f core conftest.err conftest.$ac_objext \
-    conftest$ac_exeext conftest.$ac_ext
-LIBS=$ac_check_lib_save_LIBS
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_aitio_io_allocVar" >&5
-$as_echo "$ac_cv_lib_aitio_io_allocVar" >&6; }
-if test "x$ac_cv_lib_aitio_io_allocVar" = xyes; then :
-  cat >>confdefs.h <<_ACEOF
-#define HAVE_LIBAITIO 1
-_ACEOF
-
-  LIBS="-laitio $LIBS"
-
-fi
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for cfgLoadConfig in -laitcfg" >&5
 $as_echo_n "checking for cfgLoadConfig in -laitcfg... " >&6; }
 if ${ac_cv_lib_aitcfg_cfgLoadConfig+:} false; then :
@@ -5381,7 +5339,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by mqtt $as_me 1.3, which was
+This file was extended by mqtt $as_me 2.0, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -5443,7 +5401,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-mqtt config.status 1.3
+mqtt config.status 2.0
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"