diff --git a/configs/stasis.conf.sample b/configs/stasis.conf.sample
deleted file mode 100644
index c6466b489c..0000000000
--- a/configs/stasis.conf.sample
+++ /dev/null
@@ -1,8 +0,0 @@
-[threadpool]
-;initial_size = 0	; Initial size of the threadpool
-
-;idle_timeout_sec = 20	; Number of seconds a thread should be idle before dying
-;			; 0 means threads never time out
-
-;max_size = 200         ; Maximum number of threads in the threadpool
-;			; 0 means no limit to the threads in the threadpool
diff --git a/configure b/configure
index 9260b631d9..c35a5ad1ba 100755
--- a/configure
+++ b/configure
@@ -1,14 +1,12 @@
 #! /bin/sh
-# From configure.ac Revision: 397989 .
+# From configure.ac Revision: 400077 .
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.68 for asterisk trunk.
+# Generated by GNU Autoconf 2.69 for asterisk trunk.
 #
 # Report bugs to <https://issues.asterisk.org>.
 #
 #
-# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
-# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
-# Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -139,6 +137,31 @@ export LANGUAGE
 # CDPATH.
 (unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
   as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
   emulate sh
@@ -172,7 +195,8 @@ if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
 else
   exitcode=1; echo positional parameters were not saved.
 fi
-test x\$exitcode = x0 || exit 1"
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
   as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
   as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
   eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
@@ -217,21 +241,25 @@ IFS=$as_save_IFS
 
 
       if test "x$CONFIG_SHELL" != x; then :
-  # We cannot yet assume a decent shell, so we have to provide a
-	# neutralization value for shells without unset; and this also
-	# works around shells that cannot unset nonexistent variables.
-	# Preserve -v and -x to the replacement shell.
-	BASH_ENV=/dev/null
-	ENV=/dev/null
-	(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
-	export CONFIG_SHELL
-	case $- in # ((((
-	  *v*x* | *x*v* ) as_opts=-vx ;;
-	  *v* ) as_opts=-v ;;
-	  *x* ) as_opts=-x ;;
-	  * ) as_opts= ;;
-	esac
-	exec "$CONFIG_SHELL" $as_opts "$as_myself" ${1+"$@"}
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
 fi
 
     if test x$as_have_required = xno; then :
@@ -334,6 +362,14 @@ $as_echo X"$as_dir" |
 
 
 } # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
@@ -455,6 +491,10 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
   chmod +x "$as_me.lineno" ||
     { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
 
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
   # Don't try to exec as it changes $[0], causing all sort of problems
   # (the dirname of $[0] is not the place where we might find the
   # original and so on.  Autoconf is especially sensitive to this).
@@ -489,16 +529,16 @@ if (echo >conf$$.file) 2>/dev/null; then
     # ... but there are two gotchas:
     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
+    # In both cases, we have to default to `cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
+      as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
     as_ln_s=ln
   else
-    as_ln_s='cp -p'
+    as_ln_s='cp -pR'
   fi
 else
-  as_ln_s='cp -p'
+  as_ln_s='cp -pR'
 fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
@@ -510,28 +550,8 @@ else
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in #(
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
@@ -1794,8 +1814,6 @@ target=$target_alias
 if test "x$host_alias" != x; then
   if test "x$build_alias" = x; then
     cross_compiling=maybe
-    $as_echo "$as_me: WARNING: if you wanted to set the --build type, don't use --host.
-    If a cross compiler is detected then cross compile mode will be used" >&2
   elif test "x$build_alias" != "x$host_alias"; then
     cross_compiling=yes
   fi
@@ -2149,9 +2167,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
 asterisk configure trunk
-generated by GNU Autoconf 2.68
+generated by GNU Autoconf 2.69
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2012 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 
@@ -2505,7 +2523,7 @@ $as_echo "$ac_try_echo"; } >&5
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
+	 test -x conftest$ac_exeext
        }; then :
   ac_retval=0
 else
@@ -2719,7 +2737,8 @@ int
 main ()
 {
 static int test_array [1 - 2 * !(($2) >= 0)];
-test_array [0] = 0
+test_array [0] = 0;
+return test_array [0];
 
   ;
   return 0;
@@ -2735,7 +2754,8 @@ int
 main ()
 {
 static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0
+test_array [0] = 0;
+return test_array [0];
 
   ;
   return 0;
@@ -2761,7 +2781,8 @@ int
 main ()
 {
 static int test_array [1 - 2 * !(($2) < 0)];
-test_array [0] = 0
+test_array [0] = 0;
+return test_array [0];
 
   ;
   return 0;
@@ -2777,7 +2798,8 @@ int
 main ()
 {
 static int test_array [1 - 2 * !(($2) >= $ac_mid)];
-test_array [0] = 0
+test_array [0] = 0;
+return test_array [0];
 
   ;
   return 0;
@@ -2811,7 +2833,8 @@ int
 main ()
 {
 static int test_array [1 - 2 * !(($2) <= $ac_mid)];
-test_array [0] = 0
+test_array [0] = 0;
+return test_array [0];
 
   ;
   return 0;
@@ -2998,7 +3021,7 @@ $as_echo "$ac_try_echo"; } >&5
 	 test ! -s conftest.err
        } && test -s conftest$ac_exeext && {
 	 test "$cross_compiling" = yes ||
-	 $as_test_x conftest$ac_exeext
+	 test -x conftest$ac_exeext
        }; then :
   ac_retval=0
 else
@@ -3052,7 +3075,7 @@ This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
 It was created by asterisk $as_me trunk, which was
-generated by GNU Autoconf 2.68.  Invocation command line was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
 
@@ -3584,7 +3607,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -3628,7 +3651,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4072,8 +4095,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <stdarg.h>
 #include <stdio.h>
-#include <sys/types.h>
-#include <sys/stat.h>
+struct stat;
 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
 struct buf { int x; };
 FILE * (*rcsopen) (struct buf *, struct stat *, int);
@@ -4314,7 +4336,7 @@ do
     for ac_prog in grep ggrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_GREP" && $as_test_x "$ac_path_GREP"; } || continue
+      as_fn_executable_p "$ac_path_GREP" || continue
 # Check for GNU ac_path_GREP and select it if it is found.
   # Check for GNU $ac_path_GREP
 case `"$ac_path_GREP" --version 2>&1` in
@@ -4380,7 +4402,7 @@ do
     for ac_prog in egrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+      as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
 case `"$ac_path_EGREP" --version 2>&1` in
@@ -4587,8 +4609,8 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-#	  define __EXTENSIONS__ 1
-	  $ac_includes_default
+#         define __EXTENSIONS__ 1
+          $ac_includes_default
 int
 main ()
 {
@@ -4791,7 +4813,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_UNAME="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4834,7 +4856,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_UNAME="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4899,7 +4921,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CC="${ac_tool_prefix}gcc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4939,7 +4961,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CC="gcc"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -4991,7 +5013,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CXX="${ac_tool_prefix}g++"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5031,7 +5053,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CXX="g++"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5083,7 +5105,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_LD="${ac_tool_prefix}ld"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5123,7 +5145,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_LD="ld"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5175,7 +5197,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5215,7 +5237,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5281,7 +5303,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5325,7 +5347,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_CXX="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -5804,7 +5826,7 @@ do
     for ac_prog in sed gsed; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_SED" && $as_test_x "$ac_path_SED"; } || continue
+      as_fn_executable_p "$ac_path_SED" || continue
 # Check for GNU ac_path_SED and select it if it is found.
   # Check for GNU $ac_path_SED
 case `"$ac_path_SED" --version 2>&1` in
@@ -5989,7 +6011,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6050,7 +6072,7 @@ case $as_dir/ in #((
     # by default.
     for ac_prog in ginstall scoinst install; do
       for ac_exec_ext in '' $ac_executable_extensions; do
-	if { test -f "$as_dir/$ac_prog$ac_exec_ext" && $as_test_x "$as_dir/$ac_prog$ac_exec_ext"; }; then
+	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
 	  if test $ac_prog = install &&
 	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
 	    # AIX install.  It has an incompatible calling convention.
@@ -6134,7 +6156,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6174,7 +6196,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_RANLIB="ranlib"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6256,7 +6278,7 @@ do
     for ac_prog in egrep; do
     for ac_exec_ext in '' $ac_executable_extensions; do
       ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
-      { test -f "$ac_path_EGREP" && $as_test_x "$ac_path_EGREP"; } || continue
+      as_fn_executable_p "$ac_path_EGREP" || continue
 # Check for GNU ac_path_EGREP and select it if it is found.
   # Check for GNU $ac_path_EGREP
 case `"$ac_path_EGREP" --version 2>&1` in
@@ -6324,7 +6346,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_STRIP="$ac_tool_prefix$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6368,7 +6390,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_STRIP="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6424,7 +6446,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6468,7 +6490,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_AR="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6530,7 +6552,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_BISON="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6571,7 +6593,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CMP="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6612,7 +6634,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_FLEX="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6653,7 +6675,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_GREP="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6694,7 +6716,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PYTHON="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6735,7 +6757,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_FIND="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6776,7 +6798,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_COMPRESS="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6817,7 +6839,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_BASENAME="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6858,7 +6880,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_DIRNAME="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6899,7 +6921,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_SHELL="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6940,7 +6962,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_LN="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -6981,7 +7003,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_DOXYGEN="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7022,7 +7044,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_DOT="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7063,7 +7085,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_WGET="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7104,7 +7126,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CURL="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7145,7 +7167,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_RUBBER="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7186,7 +7208,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CATDVI="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7227,7 +7249,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_KPATHSEA="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7268,7 +7290,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_XMLLINT="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7309,7 +7331,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_XMLSTARLET="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7350,7 +7372,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_GIT="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7396,7 +7418,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_FETCH="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7441,7 +7463,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_LDCONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7482,7 +7504,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_SHA1SUM="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7523,7 +7545,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_OPENSSL="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7615,7 +7637,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_SOXMIX="${ac_tool_prefix}soxmix"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7655,7 +7677,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_ac_ct_SOXMIX="soxmix"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7714,7 +7736,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_MD5="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -7880,7 +7902,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_acx_pthread_config="yes"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -8036,7 +8058,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_PTHREAD_CC="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -9145,7 +9167,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_prog_AWK="$ac_prog"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -9195,7 +9217,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path__libcurl_config="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -9237,7 +9259,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path__libcurl_config="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -11421,23 +11443,20 @@ else
 /* end confdefs.h.  */
 $ac_includes_default
 int
-find_stack_direction ()
+find_stack_direction (int *addr, int depth)
 {
-  static char *addr = 0;
-  auto char dummy;
-  if (addr == 0)
-    {
-      addr = &dummy;
-      return find_stack_direction ();
-    }
-  else
-    return (&dummy > addr) ? 1 : -1;
+  int dir, dummy = 0;
+  if (! addr)
+    addr = &dummy;
+  *addr = addr < &dummy ? 1 : addr == &dummy ? 0 : -1;
+  dir = depth ? find_stack_direction (addr, depth - 1) : 0;
+  return dir + dummy;
 }
 
 int
-main ()
+main (int argc, char **argv)
 {
-  return find_stack_direction () < 0;
+  return find_stack_direction (0, argc + !argv + 20) < 0;
 }
 _ACEOF
 if ac_fn_c_try_run "$LINENO"; then :
@@ -12709,7 +12728,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CONFIG_LIBXML2="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -12753,7 +12772,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_CONFIG_LIBXML2="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -13190,6 +13209,8 @@ _ACEOF
 esac
 rm -rf conftest*
   fi
+
+
 fi
 
 
@@ -13202,60 +13223,60 @@ else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
-#include <stdbool.h>
-#ifndef bool
- "error: bool is not defined"
-#endif
-#ifndef false
- "error: false is not defined"
-#endif
-#if false
- "error: false is not 0"
-#endif
-#ifndef true
- "error: true is not defined"
-#endif
-#if true != 1
- "error: true is not 1"
-#endif
-#ifndef __bool_true_false_are_defined
- "error: __bool_true_false_are_defined is not defined"
-#endif
+             #include <stdbool.h>
+             #ifndef bool
+              "error: bool is not defined"
+             #endif
+             #ifndef false
+              "error: false is not defined"
+             #endif
+             #if false
+              "error: false is not 0"
+             #endif
+             #ifndef true
+              "error: true is not defined"
+             #endif
+             #if true != 1
+              "error: true is not 1"
+             #endif
+             #ifndef __bool_true_false_are_defined
+              "error: __bool_true_false_are_defined is not defined"
+             #endif
 
-	struct s { _Bool s: 1; _Bool t; } s;
+             struct s { _Bool s: 1; _Bool t; } s;
 
-	char a[true == 1 ? 1 : -1];
-	char b[false == 0 ? 1 : -1];
-	char c[__bool_true_false_are_defined == 1 ? 1 : -1];
-	char d[(bool) 0.5 == true ? 1 : -1];
-	/* See body of main program for 'e'.  */
-	char f[(_Bool) 0.0 == false ? 1 : -1];
-	char g[true];
-	char h[sizeof (_Bool)];
-	char i[sizeof s.t];
-	enum { j = false, k = true, l = false * true, m = true * 256 };
-	/* The following fails for
-	   HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
-	_Bool n[m];
-	char o[sizeof n == m * sizeof n[0] ? 1 : -1];
-	char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
-	/* Catch a bug in an HP-UX C compiler.  See
-	   http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-	   http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
-	 */
-	_Bool q = true;
-	_Bool *pq = &q;
+             char a[true == 1 ? 1 : -1];
+             char b[false == 0 ? 1 : -1];
+             char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+             char d[(bool) 0.5 == true ? 1 : -1];
+             /* See body of main program for 'e'.  */
+             char f[(_Bool) 0.0 == false ? 1 : -1];
+             char g[true];
+             char h[sizeof (_Bool)];
+             char i[sizeof s.t];
+             enum { j = false, k = true, l = false * true, m = true * 256 };
+             /* The following fails for
+                HP aC++/ANSI C B3910B A.05.55 [Dec 04 2003]. */
+             _Bool n[m];
+             char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+             char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+             /* Catch a bug in an HP-UX C compiler.  See
+                http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+                http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+              */
+             _Bool q = true;
+             _Bool *pq = &q;
 
 int
 main ()
 {
 
-	bool e = &s;
-	*pq |= q;
-	*pq |= ! q;
-	/* Refer to every declared value, to avoid compiler optimizations.  */
-	return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
-		+ !m + !n + !o + !p + !q + !pq);
+             bool e = &s;
+             *pq |= q;
+             *pq |= ! q;
+             /* Refer to every declared value, to avoid compiler optimizations.  */
+             return (!a + !b + !c + !d + !e + !f + !g + !h + !i + !!j + !k + !!l
+                     + !m + !n + !o + !p + !q + !pq);
 
   ;
   return 0;
@@ -13270,7 +13291,7 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdbool_h" >&5
 $as_echo "$ac_cv_header_stdbool_h" >&6; }
-ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default"
+   ac_fn_c_check_type "$LINENO" "_Bool" "ac_cv_type__Bool" "$ac_includes_default"
 if test "x$ac_cv_type__Bool" = xyes; then :
 
 cat >>confdefs.h <<_ACEOF
@@ -13280,6 +13301,7 @@ _ACEOF
 
 fi
 
+
 if test $ac_cv_header_stdbool_h = yes; then
 
 $as_echo "#define HAVE_STDBOOL_H 1" >>confdefs.h
@@ -13297,11 +13319,11 @@ else
 int
 main ()
 {
-/* FIXME: Include the comments suggested by Paul. */
+
 #ifndef __cplusplus
-  /* Ultrix mips cc rejects this.  */
+  /* Ultrix mips cc rejects this sort of thing.  */
   typedef int charset[2];
-  const charset cs;
+  const charset cs = { 0, 0 };
   /* SunOS 4.1.1 cc rejects this.  */
   char const *const *pcpcc;
   char **ppc;
@@ -13318,8 +13340,9 @@ main ()
   ++pcpcc;
   ppc = (char**) pcpcc;
   pcpcc = (char const *const *) ppc;
-  { /* SCO 3.2v4 cc rejects this.  */
-    char *t;
+  { /* SCO 3.2v4 cc rejects this sort of thing.  */
+    char tx;
+    char *t = &tx;
     char const *s = 0 ? (char *) 0 : (char const *) 0;
 
     *t++ = 0;
@@ -13335,10 +13358,10 @@ main ()
     iptr p = 0;
     ++p;
   }
-  { /* AIX XL C 1.02.0.0 rejects this saying
+  { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
        "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
-    struct s { int j; const int *ap[3]; };
-    struct s *b; b->j = 5;
+    struct s { int j; const int *ap[3]; } bx;
+    struct s *b = &bx; b->j = 5;
   }
   { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
     const int foo = 10;
@@ -13468,7 +13491,8 @@ static int test_array [1 - 2 * !((0 < ((DBL_MAX_EXP < LDBL_MAX_EXP)
 		   - (LDBL_MANT_DIG < DBL_MANT_DIG)))
 	    && (int) LDBL_EPSILON == 0
 	  )];
-test_array [0] = 0
+test_array [0] = 0;
+return test_array [0];
 
   ;
   return 0;
@@ -15653,12 +15677,13 @@ fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_rwlock_timedwrlock() in pthread.h" >&5
-$as_echo_n "checking for pthread_rwlock_timedwrlock() in pthread.h... " >&6; }
 save_LIBS="$LIBS"
 save_CFLAGS="$CFLAGS"
 LIBS="$PTHREAD_LIBS $LIBS"
 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_rwlock_timedwrlock() in pthread.h" >&5
+$as_echo_n "checking for pthread_rwlock_timedwrlock() in pthread.h... " >&6; }
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 #include <pthread.h>
@@ -15688,6 +15713,43 @@ $as_echo "no" >&6; }
 fi
 rm -f core conftest.err conftest.$ac_objext \
     conftest$ac_exeext conftest.$ac_ext
+
+# Some platforms define sem_init(), but only support sem_open(). joyous.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working unnamed semaphores" >&5
+$as_echo_n "checking for working unnamed semaphores... " >&6; }
+if test "$cross_compiling" = yes; then :
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <semaphore.h>
+int
+main ()
+{
+sem_t sem; return sem_init(&sem, 0, 0);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+$as_echo "#define HAS_WORKING_SEMAPHORE 1" >>confdefs.h
+
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
 LIBS="$save_LIBS"
 CFLAGS="$save_CFLAGS"
 if test "${ac_cv_pthread_rwlock_timedwrlock}" = "yes"; then
@@ -17737,6 +17799,7 @@ LIBS=${old_LIBS}
 
 
 
+
 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
 	if test -n "$ac_tool_prefix"; then
   # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
@@ -17757,7 +17820,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -17800,7 +17863,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -18943,6 +19006,7 @@ if test -n "$ILBC_CFLAGS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_ILBC_CFLAGS=`$PKG_CONFIG --cflags "libilbc" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -18959,6 +19023,7 @@ if test -n "$ILBC_LIBS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_ILBC_LIBS=`$PKG_CONFIG --libs "libilbc" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -18978,9 +19043,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ILBC_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libilbc" 2>&1`
+	        ILBC_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libilbc" 2>&1`
         else
-	        ILBC_PKG_ERRORS=`$PKG_CONFIG --print-errors "libilbc" 2>&1`
+	        ILBC_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libilbc" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ILBC_PKG_ERRORS" >&5
@@ -19048,6 +19113,7 @@ if test -n "$LIBEDIT_CFLAGS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBEDIT_CFLAGS=`$PKG_CONFIG --cflags "libedit" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -19064,6 +19130,7 @@ if test -n "$LIBEDIT_LIBS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_LIBEDIT_LIBS=`$PKG_CONFIG --libs "libedit" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -19083,9 +19150,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        LIBEDIT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libedit" 2>&1`
+	        LIBEDIT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libedit" 2>&1`
         else
-	        LIBEDIT_PKG_ERRORS=`$PKG_CONFIG --print-errors "libedit" 2>&1`
+	        LIBEDIT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libedit" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$LIBEDIT_PKG_ERRORS" >&5
@@ -21374,7 +21441,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CONFIG_MYSQLCLIENT="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21418,7 +21485,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_CONFIG_MYSQLCLIENT="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21630,7 +21697,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CONFIG_NEON="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21674,7 +21741,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_CONFIG_NEON="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21781,7 +21848,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CONFIG_NEON29="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21825,7 +21892,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_CONFIG_NEON29="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21934,7 +22001,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CONFIG_NETSNMP="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -21978,7 +22045,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_CONFIG_NETSNMP="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -23033,7 +23100,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -23076,7 +23143,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_PG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -23145,7 +23212,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -23188,7 +23255,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_PG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -23357,6 +23424,7 @@ if test -n "$PJPROJECT_CFLAGS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_PJPROJECT_CFLAGS=`$PKG_CONFIG --cflags "libpjproject" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -23373,6 +23441,7 @@ if test -n "$PJPROJECT_LIBS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_PJPROJECT_LIBS=`$PKG_CONFIG --libs "libpjproject" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -23392,9 +23461,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        PJPROJECT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "libpjproject" 2>&1`
+	        PJPROJECT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libpjproject" 2>&1`
         else
-	        PJPROJECT_PKG_ERRORS=`$PKG_CONFIG --print-errors "libpjproject" 2>&1`
+	        PJPROJECT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libpjproject" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$PJPROJECT_PKG_ERRORS" >&5
@@ -26388,7 +26457,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PTLIB_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -26450,7 +26519,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_PTLIB_CONFIG="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -29044,6 +29113,7 @@ if test -n "$GMIME_CFLAGS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_GMIME_CFLAGS=`$PKG_CONFIG --cflags "gmime-$ver" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -29060,6 +29130,7 @@ if test -n "$GMIME_LIBS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_GMIME_LIBS=`$PKG_CONFIG --libs "gmime-$ver" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -29079,9 +29150,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        GMIME_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "gmime-$ver" 2>&1`
+	        GMIME_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "gmime-$ver" 2>&1`
         else
-	        GMIME_PKG_ERRORS=`$PKG_CONFIG --print-errors "gmime-$ver" 2>&1`
+	        GMIME_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "gmime-$ver" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$GMIME_PKG_ERRORS" >&5
@@ -30098,7 +30169,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_CONFIG_SDL="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -30142,7 +30213,7 @@ do
   IFS=$as_save_IFS
   test -z "$as_dir" && as_dir=.
     for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
     ac_cv_path_ac_pt_CONFIG_SDL="$as_dir/$ac_word$ac_exec_ext"
     $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
     break 2
@@ -30711,6 +30782,7 @@ if test -n "$GTK2_CFLAGS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_GTK2_CFLAGS=`$PKG_CONFIG --cflags "gtk+-2.0" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -30727,6 +30799,7 @@ if test -n "$GTK2_LIBS"; then
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
   pkg_cv_GTK2_LIBS=`$PKG_CONFIG --libs "gtk+-2.0" 2>/dev/null`
+		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
 fi
@@ -30746,9 +30819,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        GTK2_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "gtk+-2.0" 2>&1`
+	        GTK2_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "gtk+-2.0" 2>&1`
         else
-	        GTK2_PKG_ERRORS=`$PKG_CONFIG --print-errors "gtk+-2.0" 2>&1`
+	        GTK2_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "gtk+-2.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$GTK2_PKG_ERRORS" >&5
@@ -31767,16 +31840,16 @@ if (echo >conf$$.file) 2>/dev/null; then
     # ... but there are two gotchas:
     # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
     # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
-    # In both cases, we have to default to `cp -p'.
+    # In both cases, we have to default to `cp -pR'.
     ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
-      as_ln_s='cp -p'
+      as_ln_s='cp -pR'
   elif ln conf$$.file conf$$ 2>/dev/null; then
     as_ln_s=ln
   else
-    as_ln_s='cp -p'
+    as_ln_s='cp -pR'
   fi
 else
-  as_ln_s='cp -p'
+  as_ln_s='cp -pR'
 fi
 rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
 rmdir conf$$.dir 2>/dev/null
@@ -31836,28 +31909,16 @@ else
   as_mkdir_p=false
 fi
 
-if test -x / >/dev/null 2>&1; then
-  as_test_x='test -x'
-else
-  if ls -dL / >/dev/null 2>&1; then
-    as_ls_L_option=L
-  else
-    as_ls_L_option=
-  fi
-  as_test_x='
-    eval sh -c '\''
-      if test -d "$1"; then
-	test -d "$1/.";
-      else
-	case $1 in #(
-	-*)set "./$1";;
-	esac;
-	case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
-	???[sx]*):;;*)false;;esac;fi
-    '\'' sh
-  '
-fi
-as_executable_p=$as_test_x
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
 
 # Sed expression to map a string onto a valid CPP name.
 as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
@@ -31879,7 +31940,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by asterisk $as_me trunk, which was
-generated by GNU Autoconf 2.68.  Invocation command line was
+generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
   CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -31941,10 +32002,10 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
 asterisk config.status trunk
-configured by $0, generated by GNU Autoconf 2.68,
+configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 
-Copyright (C) 2010 Free Software Foundation, Inc.
+Copyright (C) 2012 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
 
@@ -32034,7 +32095,7 @@ fi
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
-  set X '$SHELL' '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
   shift
   \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
   CONFIG_SHELL='$SHELL'
diff --git a/configure.ac b/configure.ac
index ba8581b193..765f0805bb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -808,11 +808,12 @@ AC_DEFINE([HAVE_PTHREAD_MUTEX_RECURSIVE_NP], 1, [Define to 1 if your system defi
 AC_MSG_RESULT(no)
 )
 
-AC_MSG_CHECKING(for pthread_rwlock_timedwrlock() in pthread.h)
 save_LIBS="$LIBS"
 save_CFLAGS="$CFLAGS"
 LIBS="$PTHREAD_LIBS $LIBS"
 CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+
+AC_MSG_CHECKING(for pthread_rwlock_timedwrlock() in pthread.h)
 AC_LINK_IFELSE(
   [AC_LANG_PROGRAM(
     [#include <pthread.h>
@@ -826,6 +827,17 @@ AC_LINK_IFELSE(
     ac_cv_pthread_rwlock_timedwrlock="no"
   ]
 )
+
+# Some platforms define sem_init(), but only support sem_open(). joyous.
+AC_MSG_CHECKING(for working unnamed semaphores)
+AC_RUN_IFELSE(
+	[AC_LANG_PROGRAM([#include <semaphore.h>],
+		[sem_t sem; return sem_init(&sem, 0, 0);])],
+	AC_MSG_RESULT(yes)
+	AC_DEFINE([HAS_WORKING_SEMAPHORE], 1, [Define to 1 if anonymous semaphores work.]),
+	AC_MSG_RESULT(no)
+)
+
 LIBS="$save_LIBS"
 CFLAGS="$save_CFLAGS"
 if test "${ac_cv_pthread_rwlock_timedwrlock}" = "yes"; then
diff --git a/include/asterisk/autoconfig.h.in b/include/asterisk/autoconfig.h.in
index 87a769ed07..559b69af1a 100644
--- a/include/asterisk/autoconfig.h.in
+++ b/include/asterisk/autoconfig.h.in
@@ -29,6 +29,9 @@
 /* Define to 1 if using `alloca.c'. */
 #undef C_ALLOCA
 
+/* Define to 1 if anonymous semaphores work. */
+#undef HAS_WORKING_SEMAPHORE
+
 /* Define to 1 if you have the `acos' function. */
 #undef HAVE_ACOS
 
diff --git a/include/asterisk/sem.h b/include/asterisk/sem.h
new file mode 100644
index 0000000000..8f6356c013
--- /dev/null
+++ b/include/asterisk/sem.h
@@ -0,0 +1,157 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2013, Digium, Inc.
+ *
+ * David M. Lee, II <dlee@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+#ifndef ASTERISK_SEMAPHORE_H
+#define ASTERISK_SEMAPHORE_H
+
+/*!
+ * \file Asterisk semaphore API
+ *
+ * This API is a thin wrapper around the POSIX semaphore API (when available),
+ * so see the POSIX documentation for further details.
+ */
+
+#ifdef HAS_WORKING_SEMAPHORE
+/* Working semaphore implementation detected */
+
+#include <semaphore.h>
+
+struct ast_sem {
+	sem_t real_sem;
+};
+
+#define AST_SEM_VALUE_MAX SEM_VALUE_MAX
+
+/* These are thin wrappers; might as well inline them */
+
+static force_inline int ast_sem_init(struct ast_sem *sem, int pshared, unsigned int value)
+{
+	return sem_init(&sem->real_sem, pshared, value);
+}
+
+static force_inline int ast_sem_destroy(struct ast_sem *sem)
+{
+	return sem_destroy(&sem->real_sem);
+}
+
+static force_inline int ast_sem_post(struct ast_sem *sem)
+{
+	return sem_post(&sem->real_sem);
+}
+
+static force_inline int ast_sem_wait(struct ast_sem *sem)
+{
+	return sem_wait(&sem->real_sem);
+}
+
+static force_inline int ast_sem_getvalue(struct ast_sem *sem, int *sval)
+{
+	return sem_getvalue(&sem->real_sem, sval);
+}
+
+#else
+/* Unnamed semaphores don't work. Rolling our own, I guess... */
+
+#include "asterisk/lock.h"
+
+#include <limits.h>
+
+struct ast_sem {
+	/*! Current count of this semaphore */
+	int count;
+	/*! Number of threads currently waiting for this semaphore */
+	int waiters;
+	/*! Mutual exclusion */
+	ast_mutex_t mutex;
+	/*! Condition for singalling waiters */
+	ast_cond_t cond;
+};
+
+#define AST_SEM_VALUE_MAX INT_MAX
+
+/*!
+ * \brief Initialize a semaphore.
+ *
+ * \param sem Semaphore to initialize.
+ * \param pshared Pass true (nonzero) to share this thread between processes.
+ *                Not be supported on all platforms, so be wary!
+ *                But leave the parameter, to be compatible with the POSIX ABI
+ *                in case we need to add support in the future.
+ * \param value Initial value of the semaphore.
+ *
+ * \return 0 on success.
+ * \return -1 on error, errno set to indicate error.
+ */
+int ast_sem_init(struct ast_sem *sem, int pshared, unsigned int value);
+
+/*!
+ * \brief Destroy a semaphore.
+ *
+ * Destroying a semaphore that other threads are currently blocked on produces
+ * undefined behavior.
+ *
+ * \param sem Semaphore to destroy.
+ *
+ * \return 0 on success.
+ * \return -1 on error, errno set to indicate error.
+ */
+int ast_sem_destroy(struct ast_sem *sem);
+
+/*!
+ * \brief Increments the semaphore, unblocking a waiter if necessary.
+ *
+ * \param sem Semaphore to increment.
+ *
+ * \return 0 on success.
+ * \return -1 on error, errno set to indicate error.
+ */
+int ast_sem_post(struct ast_sem *sem);
+
+/*!
+ * \brief Decrements the semaphore.
+ *
+ * If the semaphore's current value is zero, this function blocks until another
+ * thread posts (ast_sem_post()) to the semaphore (or is interrupted by a signal
+ * handler, which sets errno to EINTR).
+ *
+ * \param sem Semaphore to decrement.
+ *
+ * \return 0 on success.
+ * \return -1 on error, errno set to indicate error.
+ */
+int ast_sem_wait(struct ast_sem *sem);
+
+/*!
+ * \brief Gets the current value of the semaphore.
+ *
+ * If threads are blocked on this semaphore, POSIX allows the return value to be
+ * either 0 or a negative number whose absolute value is the number of threads
+ * blocked. Don't assume that it will give you one or the other; Asterisk has
+ * been ported to just about everything.
+ *
+ * \param sem Semaphore to query.
+ * \param[out] sval Output value.
+ *
+ * \return 0 on success.
+ * \return -1 on error, errno set to indicate error.
+ */
+int ast_sem_getvalue(struct ast_sem *sem, int *sval);
+
+#endif
+
+#endif /* ASTERISK_SEMAPHORE_H */
diff --git a/include/asterisk/stasis.h b/include/asterisk/stasis.h
index 1a3dae00f7..09810ab561 100644
--- a/include/asterisk/stasis.h
+++ b/include/asterisk/stasis.h
@@ -884,16 +884,6 @@ int stasis_config_init(void);
  */
 int stasis_wait_init(void);
 
-struct ast_threadpool_options;
-
-/*!
- * \internal
- * \brief Retrieves the Stasis threadpool configuration.
- * \param[out] threadpool_options Filled with Stasis threadpool options.
- */
-void stasis_config_get_threadpool_options(
-	struct ast_threadpool_options *threadpool_options);
-
 /*! @} */
 
 /*!
diff --git a/include/asterisk/taskprocessor.h b/include/asterisk/taskprocessor.h
index 2191663057..5cb574854f 100644
--- a/include/asterisk/taskprocessor.h
+++ b/include/asterisk/taskprocessor.h
@@ -109,6 +109,7 @@ struct ast_taskprocessor_listener_callbacks {
 	 * \param listener The listener
 	 */
 	void (*shutdown)(struct ast_taskprocessor_listener *listener);
+	void (*dtor)(struct ast_taskprocessor_listener *listener);
 };
 
 /*!
diff --git a/main/sem.c b/main/sem.c
new file mode 100644
index 0000000000..e67d9c72e5
--- /dev/null
+++ b/main/sem.c
@@ -0,0 +1,116 @@
+/*
+ * Asterisk -- An open source telephony toolkit.
+ *
+ * Copyright (C) 2013, Digium, Inc.
+ *
+ * David M. Lee, II <dlee@digium.com>
+ *
+ * See http://www.asterisk.org for more information about
+ * the Asterisk project. Please do not directly contact
+ * any of the maintainers of this project for assistance;
+ * the project provides a web site, mailing lists and IRC
+ * channels for your use.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License Version 2. See the LICENSE file
+ * at the top of the source tree.
+ */
+
+/*! \file
+ *
+ * \brief Asterisk semaphore support.
+ */
+
+#include "asterisk.h"
+
+ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
+
+#include "asterisk/sem.h"
+#include "asterisk/utils.h"
+
+#ifndef HAS_WORKING_SEMAPHORE
+
+/* DIY semaphores! */
+
+int ast_sem_init(struct ast_sem *sem, int pshared, unsigned int value)
+{
+	if (pshared) {
+		/* Don't need it... yet */
+		errno = ENOSYS;
+		return -1;
+	}
+
+	/* Since value is unsigned, this will also catch attempts to init with
+	 * a negative value */
+	if (value > AST_SEM_VALUE_MAX) {
+		errno = EINVAL;
+		return -1;
+	}
+
+	sem->count = value;
+	sem->waiters = 0;
+	ast_mutex_init(&sem->mutex);
+	ast_cond_init(&sem->cond, NULL);
+	return 0;
+}
+
+int ast_sem_destroy(struct ast_sem *sem)
+{
+	ast_mutex_destroy(&sem->mutex);
+	ast_cond_destroy(&sem->cond);
+	return 0;
+}
+
+int ast_sem_post(struct ast_sem *sem)
+{
+	SCOPED_MUTEX(lock, &sem->mutex);
+
+	ast_assert(sem->count >= 0);
+
+	if (sem->count == AST_SEM_VALUE_MAX) {
+		errno = EOVERFLOW;
+		return -1;
+	}
+
+	/* Give it up! */
+	++sem->count;
+
+	/* Release a waiter, if needed */
+	if (sem->waiters) {
+		ast_cond_signal(&sem->cond);
+	}
+
+	return 0;
+}
+
+int ast_sem_wait(struct ast_sem *sem)
+{
+	SCOPED_MUTEX(lock, &sem->mutex);
+
+	ast_assert(sem->count >= 0);
+
+	/* Wait for a non-zero count */
+	++sem->waiters;
+	while (sem->count == 0) {
+		ast_cond_wait(&sem->cond, &sem->mutex);
+	}
+	--sem->waiters;
+
+	/* Take it! */
+	--sem->count;
+
+	return 0;
+}
+
+int ast_sem_getvalue(struct ast_sem *sem, int *sval)
+{
+	SCOPED_MUTEX(lock, &sem->mutex);
+
+	ast_assert(sem->count >= 0);
+
+	*sval = sem->count;
+
+	return 0;
+}
+
+#endif
diff --git a/main/stasis.c b/main/stasis.c
index 7c8c349209..dade0e57fe 100644
--- a/main/stasis.c
+++ b/main/stasis.c
@@ -34,7 +34,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/astobj2.h"
 #include "asterisk/stasis_internal.h"
 #include "asterisk/stasis.h"
-#include "asterisk/threadpool.h"
 #include "asterisk/taskprocessor.h"
 #include "asterisk/utils.h"
 #include "asterisk/uuid.h"
@@ -134,9 +133,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 /*! The number of buckets to use for topic pools */
 #define TOPIC_POOL_BUCKETS 57
 
-/*! Threadpool for dispatching notifications to subscribers */
-static struct ast_threadpool *pool;
-
 STASIS_MESSAGE_TYPE_DEFN(stasis_subscription_change_type);
 
 /*! \internal */
@@ -286,7 +282,15 @@ struct stasis_subscription *internal_stasis_subscribe(
 	ast_uuid_generate_str(sub->uniqueid, sizeof(sub->uniqueid));
 
 	if (needs_mailbox) {
-		sub->mailbox = ast_threadpool_serializer(sub->uniqueid, pool);
+		/* With a small number of subscribers, a thread-per-sub is
+		 * acceptable. If our usage changes so that we have larger
+		 * numbers of subscribers, we'll probably want to consider
+		 * a threadpool. We had that originally, but with so few
+		 * subscribers it was actually a performance loss instead of
+		 * a gain.
+		 */
+		sub->mailbox = ast_taskprocessor_get(sub->uniqueid,
+			TPS_REF_DEFAULT);
 		if (!sub->mailbox) {
 			return NULL;
 		}
@@ -731,13 +735,6 @@ void stasis_log_bad_type_access(const char *name)
 	ast_log(LOG_ERROR, "Use of %s() before init/after destruction\n", name);
 }
 
-/*! \brief Shutdown function */
-static void stasis_exit(void)
-{
-	ast_threadpool_shutdown(pool);
-	pool = NULL;
-}
-
 /*! \brief Cleanup function for graceful shutdowns */
 static void stasis_cleanup(void)
 {
@@ -748,36 +745,14 @@ int stasis_init(void)
 {
 	int cache_init;
 
-	struct ast_threadpool_options opts;
-
 	/* Be sure the types are cleaned up after the message bus */
 	ast_register_cleanup(stasis_cleanup);
-	ast_register_atexit(stasis_exit);
-
-	if (stasis_config_init() != 0) {
-		ast_log(LOG_ERROR, "Stasis configuration failed\n");
-		return -1;
-	}
 
 	if (stasis_wait_init() != 0) {
 		ast_log(LOG_ERROR, "Stasis initialization failed\n");
 		return -1;
 	}
 
-	if (pool) {
-		ast_log(LOG_ERROR, "Stasis double-initialized\n");
-		return -1;
-	}
-
-	stasis_config_get_threadpool_options(&opts);
-	ast_debug(3, "Creating Stasis threadpool: initial_size = %d, max_size = %d, idle_timeout_secs = %d\n",
-		opts.initial_size, opts.max_size, opts.idle_timeout);
-	pool = ast_threadpool_create("stasis-core", NULL, &opts);
-	if (!pool) {
-		ast_log(LOG_ERROR, "Stasis threadpool allocation failed\n");
-		return -1;
-	}
-
 	cache_init = stasis_cache_init();
 	if (cache_init != 0) {
 		return -1;
diff --git a/main/stasis_config.c b/main/stasis_config.c
deleted file mode 100644
index 006df51dd8..0000000000
--- a/main/stasis_config.c
+++ /dev/null
@@ -1,201 +0,0 @@
-/*
- * Asterisk -- An open source telephony toolkit.
- *
- * Copyright (C) 2013, Digium, Inc.
- *
- * David M. Lee, II <dlee@digium.com>
- *
- * See http://www.asterisk.org for more information about
- * the Asterisk project. Please do not directly contact
- * any of the maintainers of this project for assistance;
- * the project provides a web site, mailing lists and IRC
- * channels for your use.
- *
- * This program is free software, distributed under the terms of
- * the GNU General Public License Version 2. See the LICENSE file
- * at the top of the source tree.
- */
-
-/*! \file
- *
- * \brief Stasis Message Bus configuration API.
- *
- * \author David M. Lee, II <dlee@digium.com>
- */
-
-/*** MODULEINFO
-	<support_level>core</support_level>
- ***/
-
-#include "asterisk.h"
-
-ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
-
-#include "asterisk/config_options.h"
-#include "asterisk/stasis.h"
-#include "asterisk/threadpool.h"
-
-#include <limits.h>
-
-/*** DOCUMENTATION
-	<configInfo name="stasis" language="en_US">
-		<synopsis>Stasis message bus configuration.</synopsis>
-		<configFile name="stasis.conf">
-			<configObject name="threadpool">
-				<synopsis>Threadpool configuration.</synopsis>
-				<configOption name="initial_size" default="0">
-					<synopsis>Initial number of threads in the message bus threadpool.</synopsis>
-				</configOption>
-				<configOption name="idle_timeout_sec" default="20">
-					<synopsis>Number of seconds for an idle thread to be disposed of.</synopsis>
-				</configOption>
-				<configOption name="max_size" default="200">
-					<synopsis>Maximum number of threads in the threadpool.</synopsis>
-				</configOption>
-			</configObject>
-		</configFile>
-	</configInfo>
- ***/
-
-/*! \brief Locking container for safe configuration access. */
-static AO2_GLOBAL_OBJ_STATIC(confs);
-
-struct stasis_threadpool_conf {
-	int initial_size;
-	int idle_timeout_sec;
-	int max_size;
-};
-
-struct stasis_conf {
-	struct stasis_threadpool_conf *threadpool;
-};
-
-/*! \brief Mapping of the stasis conf struct's globals to the
- *         threadpool context in the config file. */
-static struct aco_type threadpool_option = {
-        .type = ACO_GLOBAL,
-        .name = "threadpool",
-        .item_offset = offsetof(struct stasis_conf, threadpool),
-        .category = "^threadpool$",
-        .category_match = ACO_WHITELIST,
-};
-
-static struct aco_type *threadpool_options[] = ACO_TYPES(&threadpool_option);
-
-#define CONF_FILENAME "stasis.conf"
-
-/*! \brief The conf file that's processed for the module. */
-static struct aco_file conf_file = {
-        /*! The config file name. */
-        .filename = CONF_FILENAME,
-        /*! The mapping object types to be processed. */
-        .types = ACO_TYPES(&threadpool_option),
-};
-
-static void conf_dtor(void *obj)
-{
-	struct stasis_conf *conf = obj;
-
-	ao2_cleanup(conf->threadpool);
-	conf->threadpool = NULL;
-}
-
-static void *conf_alloc(void)
-{
-	RAII_VAR(struct stasis_conf *, conf, NULL, ao2_cleanup);
-
-	conf = ao2_alloc_options(sizeof(*conf), conf_dtor,
-		AO2_ALLOC_OPT_LOCK_NOLOCK);
-	if (!conf) {
-		return NULL;
-	}
-
-	conf->threadpool = ao2_alloc_options(sizeof(*conf->threadpool), NULL,
-		AO2_ALLOC_OPT_LOCK_NOLOCK);
-	if (!conf->threadpool) {
-		return NULL;
-	}
-
-	aco_set_defaults(&threadpool_option, "threadpool", conf->threadpool);
-
-	ao2_ref(conf, +1);
-	return conf;
-}
-
-CONFIG_INFO_CORE("stasis", cfg_info, confs, conf_alloc,
-	.files = ACO_FILES(&conf_file));
-
-void stasis_config_get_threadpool_options(
-	struct ast_threadpool_options *threadpool_options)
-{
-	RAII_VAR(struct stasis_conf *, conf, NULL, ao2_cleanup);
-
-	conf = ao2_global_obj_ref(confs);
-
-	ast_assert(conf && conf->threadpool);
-
-	{
-		struct ast_threadpool_options newopts = {
-			.version = AST_THREADPOOL_OPTIONS_VERSION,
-			.initial_size = conf->threadpool->initial_size,
-			.auto_increment = 1,
-			.idle_timeout = conf->threadpool->idle_timeout_sec,
-			.max_size = conf->threadpool->max_size,
-		};
-
-		*threadpool_options = newopts;
-	}
-}
-
-/*! \brief Load (or reload) configuration. */
-static int process_config(int reload)
-{
-	RAII_VAR(struct stasis_conf *, conf, conf_alloc(), ao2_cleanup);
-
-	switch (aco_process_config(&cfg_info, reload)) {
-	case ACO_PROCESS_ERROR:
-		if (conf && !reload
-			&& !aco_set_defaults(&threadpool_option, "threadpool", conf->threadpool)) {
-			ast_log(AST_LOG_NOTICE, "Failed to process Stasis configuration; using defaults\n");
-			ao2_global_obj_replace_unref(confs, conf);
-			return 0;
-		}
-		return -1;
-	case ACO_PROCESS_OK:
-	case ACO_PROCESS_UNCHANGED:
-		break;
-	}
-
-	return 0;
-}
-
-static void config_exit(void)
-{
-	aco_info_destroy(&cfg_info);
-	ao2_global_obj_release(confs);
-}
-
-int stasis_config_init(void)
-{
-	if (aco_info_init(&cfg_info)) {
-		aco_info_destroy(&cfg_info);
-		return -1;
-	}
-
-	ast_register_atexit(config_exit);
-
-	/* threadpool section */
-	aco_option_register(&cfg_info, "initial_size", ACO_EXACT,
-		threadpool_options, "0", OPT_INT_T, PARSE_IN_RANGE,
-		FLDSET(struct stasis_threadpool_conf, initial_size), 0,
-		INT_MAX);
-	aco_option_register(&cfg_info, "idle_timeout_sec", ACO_EXACT,
-		threadpool_options, "20", OPT_INT_T, PARSE_IN_RANGE,
-		FLDSET(struct stasis_threadpool_conf, idle_timeout_sec), 0,
-		INT_MAX);
-	aco_option_register(&cfg_info, "max_size", ACO_EXACT,
-		threadpool_options, "200", OPT_INT_T, PARSE_IN_RANGE,
-		FLDSET(struct stasis_threadpool_conf, max_size), 0, INT_MAX);
-
-	return process_config(0);
-}
diff --git a/main/taskprocessor.c b/main/taskprocessor.c
index 92bd64c328..ebb6200c37 100644
--- a/main/taskprocessor.c
+++ b/main/taskprocessor.c
@@ -37,6 +37,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
 #include "asterisk/astobj2.h"
 #include "asterisk/cli.h"
 #include "asterisk/taskprocessor.h"
+#include "asterisk/sem.h"
 
 /*!
  * \brief tps_task structure is queued to a taskprocessor
@@ -113,9 +114,6 @@ static int tps_hash_cb(const void *obj, const int flags);
 /*! \brief The astobj2 compare callback for taskprocessors */
 static int tps_cmp_cb(void *obj, void *arg, int flags);
 
-/*! \brief The task processing function executed by a taskprocessor */
-static void *tps_processing_function(void *data);
-
 /*! \brief Destroy the taskprocessor when its refcount reaches zero */
 static void tps_taskprocessor_destroy(void *tps);
 
@@ -138,47 +136,56 @@ static struct ast_cli_entry taskprocessor_clis[] = {
 
 struct default_taskprocessor_listener_pvt {
 	pthread_t poll_thread;
-	ast_mutex_t lock;
-	ast_cond_t cond;
-	int wake_up;
 	int dead;
+	struct ast_sem sem;
 };
 
-
-static void default_tps_wake_up(struct default_taskprocessor_listener_pvt *pvt, int should_die)
+static void default_listener_pvt_destroy(struct default_taskprocessor_listener_pvt *pvt)
 {
-	SCOPED_MUTEX(lock, &pvt->lock);
-	pvt->wake_up = 1;
-	pvt->dead = should_die;
-	ast_cond_signal(&pvt->cond);
+	ast_assert(pvt->dead);
+	ast_sem_destroy(&pvt->sem);
+	ast_free(pvt);
 }
 
-static int default_tps_idle(struct default_taskprocessor_listener_pvt *pvt)
+static void default_listener_pvt_dtor(struct ast_taskprocessor_listener *listener)
 {
-	SCOPED_MUTEX(lock, &pvt->lock);
-	while (!pvt->wake_up) {
-		ast_cond_wait(&pvt->cond, lock);
-	}
-	pvt->wake_up = 0;
-	return pvt->dead;
+	struct default_taskprocessor_listener_pvt *pvt = listener->user_data;
+
+	default_listener_pvt_destroy(pvt);
+
+	listener->user_data = NULL;
 }
 
 /*!
  * \brief Function that processes tasks in the taskprocessor
  * \internal
  */
-static void *tps_processing_function(void *data)
+static void *default_tps_processing_function(void *data)
 {
 	struct ast_taskprocessor_listener *listener = data;
 	struct ast_taskprocessor *tps = listener->tps;
 	struct default_taskprocessor_listener_pvt *pvt = listener->user_data;
-	int dead = 0;
+	int sem_value;
+	int res;
 
-	while (!dead) {
-		if (!ast_taskprocessor_execute(tps)) {
-			dead = default_tps_idle(pvt);
+	while (!pvt->dead) {
+		res = ast_sem_wait(&pvt->sem);
+		if (res != 0 && errno != EINTR) {
+			ast_log(LOG_ERROR, "ast_sem_wait(): %s\n",
+				strerror(errno));
+			/* Just give up */
+			break;
 		}
+		ast_taskprocessor_execute(tps);
 	}
+
+	/* No posting to a dead taskprocessor! */
+	res = ast_sem_getvalue(&pvt->sem, &sem_value);
+	ast_assert(res == 0 && sem_value == 0);
+
+	/* Free the shutdown reference (see default_listener_shutdown) */
+	ao2_t_ref(listener->tps, -1, "tps-shutdown");
+
 	return NULL;
 }
 
@@ -186,7 +193,7 @@ static int default_listener_start(struct ast_taskprocessor_listener *listener)
 {
 	struct default_taskprocessor_listener_pvt *pvt = listener->user_data;
 
-	if (ast_pthread_create(&pvt->poll_thread, NULL, tps_processing_function, listener)) {
+	if (ast_pthread_create(&pvt->poll_thread, NULL, default_tps_processing_function, listener)) {
 		return -1;
 	}
 
@@ -197,33 +204,50 @@ static void default_task_pushed(struct ast_taskprocessor_listener *listener, int
 {
 	struct default_taskprocessor_listener_pvt *pvt = listener->user_data;
 
-	ast_assert(!pvt->dead);
-
-	if (was_empty) {
-		default_tps_wake_up(pvt, 0);
+	if (ast_sem_post(&pvt->sem) != 0) {
+		ast_log(LOG_ERROR, "Failed to notify of enqueued task: %s\n",
+			strerror(errno));
 	}
 }
 
-static void default_listener_pvt_destroy(struct default_taskprocessor_listener_pvt *pvt)
+static int default_listener_die(void *data)
 {
-	ast_mutex_destroy(&pvt->lock);
-	ast_cond_destroy(&pvt->cond);
-	ast_free(pvt);
+	struct default_taskprocessor_listener_pvt *pvt = data;
+	pvt->dead = 1;
+	return 0;
 }
 
 static void default_listener_shutdown(struct ast_taskprocessor_listener *listener)
 {
 	struct default_taskprocessor_listener_pvt *pvt = listener->user_data;
-	default_tps_wake_up(pvt, 1);
-	pthread_join(pvt->poll_thread, NULL);
+	int res;
+
+	/* Hold a reference during shutdown */
+	ao2_t_ref(listener->tps, +1, "tps-shutdown");
+
+	ast_taskprocessor_push(listener->tps, default_listener_die, pvt);
+
+	if (pthread_self() == pvt->poll_thread) {
+		res = pthread_detach(pvt->poll_thread);
+		if (res != 0) {
+			ast_log(LOG_ERROR, "pthread_detach(): %s\n",
+				strerror(errno));
+		}
+	} else {
+		res = pthread_join(pvt->poll_thread, NULL);
+		if (res != 0) {
+			ast_log(LOG_ERROR, "pthread_join(): %s\n",
+				strerror(errno));
+		}
+	}
 	pvt->poll_thread = AST_PTHREADT_NULL;
-	default_listener_pvt_destroy(pvt);
 }
 
 static const struct ast_taskprocessor_listener_callbacks default_listener_callbacks = {
 	.start = default_listener_start,
 	.task_pushed = default_task_pushed,
 	.shutdown = default_listener_shutdown,
+	.dtor = default_listener_pvt_dtor,
 };
 
 /*!
@@ -268,9 +292,7 @@ static struct tps_task *tps_task_alloc(int (*task_exe)(void *datap), void *datap
 /* release task resources */
 static void *tps_task_free(struct tps_task *task)
 {
-	if (task) {
-		ast_free(task);
-	}
+	ast_free(task);
 	return NULL;
 }
 
@@ -425,10 +447,8 @@ static void tps_taskprocessor_destroy(void *tps)
 	}
 	ast_debug(1, "destroying taskprocessor '%s'\n", t->name);
 	/* free it */
-	if (t->stats) {
-		ast_free(t->stats);
-		t->stats = NULL;
-	}
+	ast_free(t->stats);
+	t->stats = NULL;
 	ast_free((char *) t->name);
 	if (t->listener) {
 		ao2_ref(t->listener, -1);
@@ -443,7 +463,6 @@ static void tps_taskprocessor_destroy(void *tps)
 static struct tps_task *tps_taskprocessor_pop(struct ast_taskprocessor *tps)
 {
 	struct tps_task *task;
-	SCOPED_AO2LOCK(lock, tps);
 
 	if ((task = AST_LIST_REMOVE_HEAD(&tps->tps_queue, list))) {
 		tps->tps_queue_size--;
@@ -472,10 +491,21 @@ static void listener_shutdown(struct ast_taskprocessor_listener *listener)
 	ao2_ref(listener->tps, -1);
 }
 
+static void taskprocessor_listener_dtor(void *obj)
+{
+	struct ast_taskprocessor_listener *listener = obj;
+
+	if (listener->callbacks->dtor) {
+		listener->callbacks->dtor(listener);
+	}
+}
+
 struct ast_taskprocessor_listener *ast_taskprocessor_listener_alloc(const struct ast_taskprocessor_listener_callbacks *callbacks, void *user_data)
 {
 	RAII_VAR(struct ast_taskprocessor_listener *, listener,
-			ao2_alloc(sizeof(*listener), NULL), ao2_cleanup);
+			NULL, ao2_cleanup);
+
+	listener = ao2_alloc(sizeof(*listener), taskprocessor_listener_dtor);
 
 	if (!listener) {
 		return NULL;
@@ -506,9 +536,12 @@ static void *default_listener_pvt_alloc(void)
 	if (!pvt) {
 		return NULL;
 	}
-	ast_cond_init(&pvt->cond, NULL);
-	ast_mutex_init(&pvt->lock);
 	pvt->poll_thread = AST_PTHREADT_NULL;
+	if (ast_sem_init(&pvt->sem, 0, 0) != 0) {
+		ast_log(LOG_ERROR, "ast_sem_init(): %s\n", strerror(errno));
+		ast_free(pvt);
+		return NULL;
+	}
 	return pvt;
 }
 
@@ -590,7 +623,6 @@ struct ast_taskprocessor *ast_taskprocessor_get(const char *name, enum ast_tps_o
 
 	p = __allocate_taskprocessor(name, listener);
 	if (!p) {
-		default_listener_pvt_destroy(pvt);
 		ao2_ref(listener, -1);
 		return NULL;
 	}
@@ -662,15 +694,17 @@ int ast_taskprocessor_execute(struct ast_taskprocessor *tps)
 	int size;
 
 	ao2_lock(tps);
+	t = tps_taskprocessor_pop(tps);
+	if (!t) {
+		ao2_unlock(tps);
+		return 0;
+	}
+
 	tps->executing = 1;
 	ao2_unlock(tps);
 
-	t = tps_taskprocessor_pop(tps);
-
-	if (t) {
-		t->execute(t->datap);
-		tps_task_free(t);
-	}
+	t->execute(t->datap);
+	tps_task_free(t);
 
 	ao2_lock(tps);
 	/* We need to check size in the same critical section where we reset the
@@ -680,7 +714,7 @@ int ast_taskprocessor_execute(struct ast_taskprocessor *tps)
 	tps->executing = 0;
 	size = tps_taskprocessor_depth(tps);
 	/* If we executed a task, bump the stats */
-	if (t && tps->stats) {
+	if (tps->stats) {
 		tps->stats->_tasks_processed_count++;
 		if (size > tps->stats->max_qsize) {
 			tps->stats->max_qsize = size;
@@ -689,7 +723,7 @@ int ast_taskprocessor_execute(struct ast_taskprocessor *tps)
 	ao2_unlock(tps);
 
 	/* If we executed a task, check for the transition to empty */
-	if (t && size == 0 && tps->listener->callbacks->emptied) {
+	if (size == 0 && tps->listener->callbacks->emptied) {
 		tps->listener->callbacks->emptied(tps->listener);
 	}
 	return size > 0;