diff --git a/configure b/configure
index b49d8cff3374e6d4eee53d3c537e7d5478091fa6..b0dcbe66d1f58953b98d1bd73befa3e1cac7b8a3 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.ac Revision: 114713 .
+# From configure.ac Revision: 115078 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for asterisk 1.6.
 #
@@ -16863,6 +16863,58 @@ fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
+{ echo "$as_me:$LINENO: checking for compiler 'attribute sentinel' support" >&5
+echo $ECHO_N "checking for compiler 'attribute sentinel' support... $ECHO_C" >&6; }
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+static int __attribute__((sentinel)) test(void) {}
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+  (eval "$ac_compile") 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then
+  { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_ATTRIBUTE_sentinel 1
+_ACEOF
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
 { echo "$as_me:$LINENO: checking for -ffunction-sections support" >&5
 echo $ECHO_N "checking for -ffunction-sections support... $ECHO_C" >&6; }
 saved_CFLAGS="${CFLAGS}"
diff --git a/configure.ac b/configure.ac
index e49d3531d3e320e4e7d12948fb515c7251714896..6dbd99b473efecd4c78cfd7ceccc4fc5a9283d8f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -437,6 +437,7 @@ AST_GCC_ATTRIBUTE(const)
 AST_GCC_ATTRIBUTE(unused)
 AST_GCC_ATTRIBUTE(always_inline)
 AST_GCC_ATTRIBUTE(deprecated)
+AST_GCC_ATTRIBUTE(sentinel)
 
 AC_MSG_CHECKING(for -ffunction-sections support)
 saved_CFLAGS="${CFLAGS}"
diff --git a/include/asterisk/autoconfig.h.in b/include/asterisk/autoconfig.h.in
index 087a6a0b2fe7c38cd5529be4d8b2c47d7e826650..d4806a5e27249bbeb5b934b8381f9741f172ced2 100644
--- a/include/asterisk/autoconfig.h.in
+++ b/include/asterisk/autoconfig.h.in
@@ -104,6 +104,9 @@
 /* Define to 1 if your GCC C compiler supports the 'pure' attribute. */
 #undef HAVE_ATTRIBUTE_pure
 
+/* Define to 1 if your GCC C compiler supports the 'sentinel' attribute. */
+#undef HAVE_ATTRIBUTE_sentinel
+
 /* Define to 1 if your GCC C compiler supports the 'unused' attribute. */
 #undef HAVE_ATTRIBUTE_unused
 
diff --git a/include/asterisk/compiler.h b/include/asterisk/compiler.h
index 8ac441463c941abcb3ec755006344a563aeb687e..0eb3c0afdd25e32f33a54d25c20daa95730cbd10 100644
--- a/include/asterisk/compiler.h
+++ b/include/asterisk/compiler.h
@@ -53,4 +53,10 @@
 #define attribute_malloc
 #endif
 
+#if HAVE_ATTRIBUTE_sentinel
+#define attribute_sentinel __attribute__((sentinel))
+#else
+#define attribute_sentinel
+#endif
+
 #endif /* _ASTERISK_COMPILER_H */
diff --git a/include/asterisk/config.h b/include/asterisk/config.h
index 0129af456722785e849564ec0d54a52837f999fc..80f651d44012bd2d65cdaa171b4fdc90827d4501 100644
--- a/include/asterisk/config.h
+++ b/include/asterisk/config.h
@@ -182,8 +182,8 @@ int ast_category_exist(const struct ast_config *config, const char *category_nam
  * that unlike the variables in ast_config, the resulting list of variables
  * MUST be freed with ast_variables_destroy() as there is no container.
  */
-struct ast_variable *ast_load_realtime(const char *family, ...) __attribute__((sentinel));
-struct ast_variable *ast_load_realtime_all(const char *family, ...) __attribute__((sentinel));
+struct ast_variable *ast_load_realtime(const char *family, ...) attribute_sentinel;
+struct ast_variable *ast_load_realtime_all(const char *family, ...) attribute_sentinel;
 
 /*! 
  * \brief Retrieve realtime configuration 
@@ -194,7 +194,7 @@ struct ast_variable *ast_load_realtime_all(const char *family, ...) __attribute_
  * is thus stored inside a taditional ast_config structure rather than 
  * just returning a linked list of variables.
  */
-struct ast_config *ast_load_realtime_multientry(const char *family, ...) __attribute__((sentinel));
+struct ast_config *ast_load_realtime_multientry(const char *family, ...) attribute_sentinel;
 
 /*! 
  * \brief Update realtime configuration 
@@ -204,7 +204,7 @@ struct ast_config *ast_load_realtime_multientry(const char *family, ...) __attri
  * This function is used to update a parameter in realtime configuration space.
  *
  */
-int ast_update_realtime(const char *family, const char *keyfield, const char *lookup, ...) __attribute__((sentinel));
+int ast_update_realtime(const char *family, const char *keyfield, const char *lookup, ...) attribute_sentinel;
 
 /*! 
  * \brief Create realtime configuration 
@@ -212,7 +212,7 @@ int ast_update_realtime(const char *family, const char *keyfield, const char *lo
  * This function is used to create a parameter in realtime configuration space.
  *
  */
-int ast_store_realtime(const char *family, ...) __attribute__((sentinel));
+int ast_store_realtime(const char *family, ...) attribute_sentinel;
 
 /*! 
  * \brief Destroy realtime configuration 
@@ -223,7 +223,7 @@ int ast_store_realtime(const char *family, ...) __attribute__((sentinel));
  * Additional params are used as keys.
  *
  */
-int ast_destroy_realtime(const char *family, const char *keyfield, const char *lookup, ...) __attribute__((sentinel));
+int ast_destroy_realtime(const char *family, const char *keyfield, const char *lookup, ...) attribute_sentinel;
 
 /*! 
  * \brief Check if realtime engine is configured for family