diff --git a/configure b/configure
index 3fd03479a1..f9974510d6 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 157601 .
+# From configure.ac Revision: 159855 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.6.
 #
@@ -889,6 +889,10 @@ SPEEX_LIB
 SPEEX_INCLUDE
 SPEEX_DIR
 PBX_SPEEX
+SPEEX_PREPROCESS_LIB
+SPEEX_PREPROCESS_INCLUDE
+SPEEX_PREPROCESS_DIR
+PBX_SPEEX_PREPROCESS
 SPEEXDSP_LIB
 SPEEXDSP_INCLUDE
 SPEEXDSP_DIR
@@ -973,7 +977,6 @@ OPENH323_INCDIR
 OPENH323_LIBDIR
 OPENH323_SUFFIX
 OPENH323_BUILD
-PBX_SPEEX_PREPROCESS
 CONFIG_GMIME
 EDITLINE_LIB
 PBX_H323
@@ -1622,6 +1625,7 @@ Optional Packages:
   --with-sdl=PATH         use Sdl files in PATH
   --with-SDL_image=PATH   use Sdl Image library files in PATH
   --with-speex=PATH       use Speex files in PATH
+  --with-speex=PATH       use Speex preprocess routines files in PATH
   --with-speexdsp=PATH    use Speexdsp files in PATH
   --with-sqlite=PATH      use SQLite files in PATH
   --with-sqlite3=PATH     use SQLite files in PATH
@@ -9118,6 +9122,34 @@ fi
 
 
 
+    SPEEX_PREPROCESS_DESCRIP="Speex preprocess routines"
+    SPEEX_PREPROCESS_OPTION="speex"
+
+# Check whether --with-speex was given.
+if test "${with_speex+set}" = set; then
+  withval=$with_speex;
+	case ${withval} in
+	n|no)
+	USE_SPEEX_PREPROCESS=no
+	;;
+	y|ye|yes)
+	ac_mandatory_list="${ac_mandatory_list} SPEEX_PREPROCESS"
+	;;
+	*)
+	SPEEX_PREPROCESS_DIR="${withval}"
+	ac_mandatory_list="${ac_mandatory_list} SPEEX_PREPROCESS"
+	;;
+	esac
+
+fi
+
+    PBX_SPEEX_PREPROCESS=0
+
+
+
+
+
+
     SPEEXDSP_DESCRIP="Speexdsp"
     SPEEXDSP_OPTION="speexdsp"
 
@@ -50279,6 +50311,10 @@ SPEEX_LIB!$SPEEX_LIB$ac_delim
 SPEEX_INCLUDE!$SPEEX_INCLUDE$ac_delim
 SPEEX_DIR!$SPEEX_DIR$ac_delim
 PBX_SPEEX!$PBX_SPEEX$ac_delim
+SPEEX_PREPROCESS_LIB!$SPEEX_PREPROCESS_LIB$ac_delim
+SPEEX_PREPROCESS_INCLUDE!$SPEEX_PREPROCESS_INCLUDE$ac_delim
+SPEEX_PREPROCESS_DIR!$SPEEX_PREPROCESS_DIR$ac_delim
+PBX_SPEEX_PREPROCESS!$PBX_SPEEX_PREPROCESS$ac_delim
 SPEEXDSP_LIB!$SPEEXDSP_LIB$ac_delim
 SPEEXDSP_INCLUDE!$SPEEXDSP_INCLUDE$ac_delim
 SPEEXDSP_DIR!$SPEEXDSP_DIR$ac_delim
@@ -50296,10 +50332,6 @@ SUPPSERV_INCLUDE!$SUPPSERV_INCLUDE$ac_delim
 SUPPSERV_DIR!$SUPPSERV_DIR$ac_delim
 PBX_SUPPSERV!$PBX_SUPPSERV$ac_delim
 OPENSSL_LIB!$OPENSSL_LIB$ac_delim
-OPENSSL_INCLUDE!$OPENSSL_INCLUDE$ac_delim
-OPENSSL_DIR!$OPENSSL_DIR$ac_delim
-PBX_OPENSSL!$PBX_OPENSSL$ac_delim
-FREETDS_LIB!$FREETDS_LIB$ac_delim
 _ACEOF
 
   if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 97; then
@@ -50341,6 +50373,10 @@ _ACEOF
 ac_delim='%!_!# '
 for ac_last_try in false false false false false :; do
   cat >conf$$subs.sed <<_ACEOF
+OPENSSL_INCLUDE!$OPENSSL_INCLUDE$ac_delim
+OPENSSL_DIR!$OPENSSL_DIR$ac_delim
+PBX_OPENSSL!$PBX_OPENSSL$ac_delim
+FREETDS_LIB!$FREETDS_LIB$ac_delim
 FREETDS_INCLUDE!$FREETDS_INCLUDE$ac_delim
 FREETDS_DIR!$FREETDS_DIR$ac_delim
 PBX_FREETDS!$PBX_FREETDS$ac_delim
@@ -50404,7 +50440,6 @@ OPENH323_INCDIR!$OPENH323_INCDIR$ac_delim
 OPENH323_LIBDIR!$OPENH323_LIBDIR$ac_delim
 OPENH323_SUFFIX!$OPENH323_SUFFIX$ac_delim
 OPENH323_BUILD!$OPENH323_BUILD$ac_delim
-PBX_SPEEX_PREPROCESS!$PBX_SPEEX_PREPROCESS$ac_delim
 CONFIG_GMIME!$CONFIG_GMIME$ac_delim
 EDITLINE_LIB!$EDITLINE_LIB$ac_delim
 PBX_H323!$PBX_H323$ac_delim
@@ -50416,7 +50451,7 @@ CURL_CONFIG!$CURL_CONFIG$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 73; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 76; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
diff --git a/configure.ac b/configure.ac
index a6d722f724..20e8e3361b 100644
--- a/configure.ac
+++ b/configure.ac
@@ -251,6 +251,7 @@ AST_EXT_LIB_SETUP([RADIUS], [Radius Client], [radius])
 AST_EXT_LIB_SETUP([SDL], [Sdl], [sdl])
 AST_EXT_LIB_SETUP([SDL_IMAGE], [Sdl Image library], [SDL_image])
 AST_EXT_LIB_SETUP([SPEEX], [Speex], [speex])
+AST_EXT_LIB_SETUP([SPEEX_PREPROCESS], [Speex preprocess routines], [speex])
 AST_EXT_LIB_SETUP([SPEEXDSP], [Speexdsp], [speexdsp])
 AST_EXT_LIB_SETUP([SQLITE], [SQLite], [sqlite])
 AST_EXT_LIB_SETUP([SQLITE3], [SQLite], [sqlite3])