diff --git a/linphone_modified/autogen.sh b/linphone_modified_2nd/autogen.sh
index a8bd1ca..1a08f40 100755
--- a/linphone_modified/autogen.sh
+++ b/linphone_modified_2nd/autogen.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 AM_VERSION="1.10"
+#LIBTOOLIZE_VERSION="-1.5.26"
 if ! type aclocal-$AM_VERSION 1>/dev/null 2>&1; then
 	# automake-1.10 (recommended) is not available on Fedora 8
 	AUTOMAKE=automake
@@ -12,9 +13,9 @@ fi
 
 if test -f /opt/local/bin/glibtoolize ; then
         # darwin
-        LIBTOOLIZE=/opt/local/bin/glibtoolize
+        LIBTOOLIZE=/opt/local/bin/glibtoolize$LIBTOOLIZE_VERSION
 else
-        LIBTOOLIZE=libtoolize
+        LIBTOOLIZE=libtoolize$LIBTOOLIZE_VERSION
 fi
 if test -d /opt/local/share/aclocal ; then
         ACLOCAL_ARGS="-I /opt/local/share/aclocal"
diff --git a/linphone_modified/mediastreamer2/autogen.sh b/linphone_modified_2nd/mediastreamer2/autogen.sh
index f88915e..cecb8bf 100755
--- a/linphone_modified/mediastreamer2/autogen.sh
+++ b/linphone_modified_2nd/mediastreamer2/autogen.sh
@@ -1,6 +1,7 @@
 #!/bin/sh
 
 AM_VERSION="1.10"
+#LIBTOOLIZE_VERSION="-1.5.26"
 if ! type aclocal-$AM_VERSION 1>/dev/null 2>&1; then
 	# automake-1.10 (recommended) is not available on Fedora 8
 	AUTOMAKE=automake
@@ -12,9 +13,9 @@ fi
 
 if test -f /opt/local/bin/glibtoolize ; then
 	# darwin
-	LIBTOOLIZE=/opt/local/bin/glibtoolize
+	LIBTOOLIZE=/opt/local/bin/glibtoolize$LIBTOOLIZE_VERSION
 else
-	LIBTOOLIZE=libtoolize
+	LIBTOOLIZE=libtoolize$LIBTOOLIZE_VERSION
 fi
 if test -d /opt/local/share/aclocal ; then
 	ACLOCAL_ARGS="-I /opt/local/share/aclocal"
diff --git a/linphone_modified/oRTP/autogen.sh b/linphone_modified_2nd/oRTP/autogen.sh
index 99302cb..97c5d73 100755
--- a/linphone_modified/oRTP/autogen.sh
+++ b/linphone_modified_2nd/oRTP/autogen.sh
@@ -1,5 +1,6 @@
 #!/bin/sh
 AM_VERSION="1.10"
+#LIBTOOLIZE_VERSION="-1.5.26"
 if ! type aclocal-$AM_VERSION 1>/dev/null 2>&1; then
 	# automake-1.10 (recommended) is not available on Fedora 8
 	AUTOMAKE=automake
@@ -11,9 +12,9 @@ fi
 
 if test -f /opt/local/bin/glibtoolize ; then
         # darwin
-        LIBTOOLIZE=/opt/local/bin/glibtoolize
+        LIBTOOLIZE=/opt/local/bin/glibtoolize$LIBTOOLIZE_VERSION
 else
-        LIBTOOLIZE=libtoolize
+        LIBTOOLIZE=libtoolize$LIBTOOLIZE_VERSION
 fi
 if test -d /opt/local/share/aclocal ; then
         ACLOCAL_ARGS="-I /opt/local/share/aclocal"