Changed the axis2/c version

diff --git a/samples/configure.ac b/samples/configure.ac
index f5b862e..b18bed2 100644
--- a/samples/configure.ac
+++ b/samples/configure.ac
@@ -80,7 +80,7 @@
         axis2inc="-I$withval"
     dnl else find the axiom include dir in $(AXIS2C_HOME)/include
     elif test -d '$(AXIS2C_HOME)/include'; then
-        axiominc="-I$(AXIS2C_HOME)/include/axis2-1.4.0"
+        axiominc="-I$(AXIS2C_HOME)/include/axis2-1.6.0"
     else
         AC_MSG_ERROR(could not find axis2. stop)
     fi