In some C++ standards, typeof is not reserved.

WHATS_NEW

@@ -1,12 +1,10 @@
 Version 2.02.68 -
 ===============================
   Fix clvmd initscript status to print only active clustered LVs.
-  Fix typo "INTERNAL ERROR" -> "INTERNAL_ERROR" in libdm-iface.c.
   Add lv_path to reports to offer full /dev pathname.
   Fix typo in warning message about missing device with allocated data areas.
-  Add device name and offset to output of error messages in raw_read_mda_header().
+  Add device name and offset to raw_read_mda_header error messages.
-  Use flexible data[] in cmirrord request to prevent abort in runtime size checks.
+  Honour log argument when down-converting stacked mirror.
-  Honor log argument when down-converting stacked mirror.
   Sleep to workaround clvmd -S race: socket closed early and server drops cmd.
   Use early udev synchronisation and update of dev nodes for clustered mirrors.
   Remove incorrect inclusion of kdev_t.h from cmirrord/functions.h.

WHATS_NEW_DM

@@ -1,7 +1,9 @@
 Version 1.02.50 - 
 ===============================
+  Fix INTERNAL_ERROR typo in ioctl iface unknown task message.
   Fix udev rules to handle spurious events properly.
-  Allow use of devmapper header file in C++ mode.
+  Use C99 [] not [0] in dm_ulog_request struct to avoid abort when fortified.
+  Allow use of devmapper header file in C++ mode (extern "C" and __typeof__).
 
 Version 1.02.49 - 4th June 2010
 ===============================

libdm/libdevmapper.h

@@ -29,6 +29,10 @@
 #include <stdlib.h>
 #include <stdio.h>
 
+#ifndef __GNUC__
+# define __typeof__ typeof
+#endif
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -855,9 +859,9 @@ struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *e
  * The 'struct dm_list' variable within the containing structure is 'field'.
  */
 #define dm_list_iterate_items_gen(v, head, field) \
-	for (v = dm_list_struct_base((head)->n, typeof(*v), field); \
+	for (v = dm_list_struct_base((head)->n, __typeof__(*v), field); \
 	     &v->field != (head); \
-	     v = dm_list_struct_base(v->field.n, typeof(*v), field))
+	     v = dm_list_struct_base(v->field.n, __typeof__(*v), field))
 
 /*
  * Walk a list, setting 'v' in turn to the containing structure of each item.
@@ -873,10 +877,10 @@ struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *e
  * t must be defined as a temporary variable of the same type as v.
  */
 #define dm_list_iterate_items_gen_safe(v, t, head, field) \
-	for (v = dm_list_struct_base((head)->n, typeof(*v), field), \
+	for (v = dm_list_struct_base((head)->n, __typeof__(*v), field), \
-	     t = dm_list_struct_base(v->field.n, typeof(*v), field); \
+	     t = dm_list_struct_base(v->field.n, __typeof__(*v), field); \
 	     &v->field != (head); \
-	     v = t, t = dm_list_struct_base(v->field.n, typeof(*v), field))
+	     v = t, t = dm_list_struct_base(v->field.n, __typeof__(*v), field))
 /*
  * Walk a list, setting 'v' in turn to the containing structure of each item.
  * The containing structure should be the same type as 'v'.
@@ -893,9 +897,9 @@ struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *e
  * The 'struct dm_list' variable within the containing structure is 'field'.
  */
 #define dm_list_iterate_back_items_gen(v, head, field) \
-	for (v = dm_list_struct_base((head)->p, typeof(*v), field); \
+	for (v = dm_list_struct_base((head)->p, __typeof__(*v), field); \
 	     &v->field != (head); \
-	     v = dm_list_struct_base(v->field.p, typeof(*v), field))
+	     v = dm_list_struct_base(v->field.p, __typeof__(*v), field))
 
 /*
  * Walk a list backwards, setting 'v' in turn to the containing structure