Index: configure.in
===================================================================
--- configure.in	(révision 66572)
+++ configure.in	(copie de travail)
@@ -438,6 +438,16 @@
 ])
 AC_MSG_RESULT($with_cxx_main)
 
+AC_MSG_CHECKING(for --with-memory-debugger)
+AC_ARG_WITH(memory-debugger,
+            AC_HELP_STRING(--with-memory-debugger, use a memory debugger (eg. Valgrind or Purify)),
+[
+AC_MSG_RESULT(yes)
+# CFLAGS="${CFLAGS} -DPy_USING_MEMORY_DEBUGGER=1"
+AC_DEFINE([Py_USING_MEMORY_DEBUGGER],[1],[Use a memory debugger (eg. Valgrind or Purify)]),
+],
+[AC_MSG_RESULT(no)])
+
 preset_cxx="$CXX"
 if test -z "$CXX"
 then
Index: Misc/README.valgrind
===================================================================
--- Misc/README.valgrind	(révision 66572)
+++ Misc/README.valgrind	(copie de travail)
@@ -7,8 +7,7 @@
 you must use a suppressions file.  One is supplied in
 Misc/valgrind-python.supp.  Second, you must do one of the following:
 
-  * Uncomment Py_USING_MEMORY_DEBUGGER in Objects/obmalloc.c,
-    then rebuild Python
+  * rebuild Python using ./configure --with-memory-debugger
   * Uncomment the lines in Misc/valgrind-python.supp that
     suppress the warnings for PyObject_Free and PyObject_Realloc