diff --git a/opal/mca/memory/configure.m4 b/opal/mca/memory/configure.m4
new file mode 100644
index 0000000000..2a936564e3
--- /dev/null
+++ b/opal/mca/memory/configure.m4
@@ -0,0 +1,19 @@
+dnl -*- shell-script -*-
+dnl
+dnl Copyright (c) 2004-2005 The Trustees of Indiana University.
+dnl                         All rights reserved.
+dnl Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+dnl                         All rights reserved.
+dnl Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+dnl                         University of Stuttgart.  All rights reserved.
+dnl Copyright (c) 2004-2005 The Regents of the University of California.
+dnl                         All rights reserved.
+dnl $COPYRIGHT$
+dnl 
+dnl Additional copyrights may follow
+dnl 
+dnl $HEADER$
+dnl
+
+dnl we only want one :)
+m4_define(MCA_memory_CONFIGURE_MODE, STOP_AT_FIRST)
diff --git a/opal/mca/memory/darwin/configure.params b/opal/mca/memory/darwin/configure.params
index 895d40c2a9..e35f4e51bd 100644
--- a/opal/mca/memory/darwin/configure.params
+++ b/opal/mca/memory/darwin/configure.params
@@ -17,4 +17,5 @@
 
 # Specific to this module
 
+PARAM_CONFIG_PRIORITY=20
 PARAM_CONFIG_FILES="Makefile"
diff --git a/opal/mca/memory/malloc_hooks/Makefile.am b/opal/mca/memory/malloc_hooks/Makefile.am
index 23b9e3a962..ed40cb7db8 100644
--- a/opal/mca/memory/malloc_hooks/Makefile.am
+++ b/opal/mca/memory/malloc_hooks/Makefile.am
@@ -20,5 +20,6 @@ noinst_LTLIBRARIES = libmca_memory_malloc_hooks.la
 
 # Source code files
 libmca_memory_malloc_hooks_la_SOURCES = \
-	malloc_hooks.c \
-	malloc_hooks_component.c
+	memory_malloc_hooks.c \
+	memory_malloc_hooks_component.c
+libmca_memory_malloc_hooks_la_LIBADD = $(memory_malloc_hooks_LIBS)
diff --git a/opal/mca/memory/malloc_hooks/configure.m4 b/opal/mca/memory/malloc_hooks/configure.m4
index 4916cd0d82..26b6d169bf 100644
--- a/opal/mca/memory/malloc_hooks/configure.m4
+++ b/opal/mca/memory/malloc_hooks/configure.m4
@@ -64,9 +64,23 @@ AC_DEFUN([MCA_memory_malloc_hooks_CONFIG],[
                          [memory_malloc_hooks_happy="yes"],
                          [memory_malloc_hooks_happy="no"])])
 
+    memory_malloc_hooks_LIBS_SAVE="$LIBS"
+    AS_IF([test "$memory_malloc_hooks_happy" = "yes"],
+          [AC_CHECK_LIB([dl],
+                        [dlsym],
+                        [memory_malloc_hooks_happy="yes"],
+                        [memory_malloc_hooks_happy="no"])])
+   LIBS="$memory_malloc_hooks_LIBS_SAVE"
+
+    AS_IF([test "$memory_malloc_hooks_happy" = "yes"],
+          [memory_malloc_hooks_WRAPPER_EXTRA_LIBS="-ldl"
+           memory_malloc_hooks_LIBS="-ldl"])
+
    AS_IF([test "$memory_malloc_hooks_happy" = "no" -a \
                "$memory_malloc_hoooks_should_use" = "1"],
-         [AC_MSG_ERROR([malloc_hooks memory management requested but not available.  Aborting.])])
+         [AC_MSG_ERROR([malloc hooks memory management requested but not available.  Aborting.])])
+
+    AC_SUBST(memory_malloc_hooks_LIBS)
 
     AS_IF([test "$memory_malloc_hooks_happy" = "yes"],
           [$1], [$2])
diff --git a/opal/mca/memory/malloc_hooks/configure.params b/opal/mca/memory/malloc_hooks/configure.params
index 895d40c2a9..e35f4e51bd 100644
--- a/opal/mca/memory/malloc_hooks/configure.params
+++ b/opal/mca/memory/malloc_hooks/configure.params
@@ -17,4 +17,5 @@
 
 # Specific to this module
 
+PARAM_CONFIG_PRIORITY=20
 PARAM_CONFIG_FILES="Makefile"
diff --git a/opal/mca/memory/malloc_hooks/malloc_hooks.c b/opal/mca/memory/malloc_hooks/memory_malloc_hooks.c
similarity index 100%
rename from opal/mca/memory/malloc_hooks/malloc_hooks.c
rename to opal/mca/memory/malloc_hooks/memory_malloc_hooks.c
diff --git a/opal/mca/memory/malloc_hooks/malloc_hooks_component.c b/opal/mca/memory/malloc_hooks/memory_malloc_hooks_component.c
similarity index 100%
rename from opal/mca/memory/malloc_hooks/malloc_hooks_component.c
rename to opal/mca/memory/malloc_hooks/memory_malloc_hooks_component.c
diff --git a/opal/mca/memory/malloc_interpose/Makefile.am b/opal/mca/memory/malloc_interpose/Makefile.am
new file mode 100644
index 0000000000..f76b3921bc
--- /dev/null
+++ b/opal/mca/memory/malloc_interpose/Makefile.am
@@ -0,0 +1,24 @@
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+include $(top_srcdir)/config/Makefile.options
+
+noinst_LTLIBRARIES = libmca_memory_malloc_interpose.la
+
+# Source code files
+libmca_memory_malloc_interpose_la_SOURCES = \
+	memory_malloc_interpose.c
+libmca_memory_malloc_interpose_la_LIBADD = $(memory_malloc_interpose_LIBS)
diff --git a/opal/mca/memory/malloc_interpose/configure.m4 b/opal/mca/memory/malloc_interpose/configure.m4
new file mode 100644
index 0000000000..9d66a4d630
--- /dev/null
+++ b/opal/mca/memory/malloc_interpose/configure.m4
@@ -0,0 +1,73 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+AC_DEFUN([MCA_memory_malloc_interpose_COMPILE_MODE], [
+    AC_MSG_CHECKING([for MCA component $2:$3 compile mode])
+    $4="static"
+    AC_MSG_RESULT([$$4])
+])
+
+
+# MCA_memory_malloc_interpose_CONFIG(action-if-can-compile, 
+#                        [action-if-cant-compile])
+# ------------------------------------------------
+AC_DEFUN([MCA_memory_malloc_interpose_CONFIG],[
+    AC_ARG_WITH([memory-manager],
+        [AC_HELP_STRING([--with-memory-manager=TYPE],
+                       [Use TYPE for intercepting memory management
+                        calls to control memory pinning.])])
+
+    AS_IF([test "$with_memory_manager" = "malloc_interpose"],
+          [memory_malloc_interpose_happy="yes"
+           memory_malloc_interpose_should_use=1],
+          [memory_malloc_interpose_should_use=0
+           AS_IF([test "$with_memory_manager" = ""],
+                 [memory_malloc_interpose_happy="yes"],
+                 [memory_malloc_interpose_happy="no"])])
+
+    AS_IF([test "$memory_malloc_interpose_happy" = "yes"],
+          [# check for malloc.h
+           AC_CHECK_HEADER([malloc.h],
+                           [memory_malloc_interpose_happy="yes"],
+                           [memory_malloc_interpose_happy="no"])])
+
+    AS_IF([test "$memory_malloc_interpose_happy" = "yes"],
+          [AC_CHECK_FUNC([malloc_usable_size], 
+                         [memory_malloc_interpose_happy="yes"],
+                         [memory_malloc_interpose_happy="no"])])
+
+    memory_malloc_interpose_LIBS_SAVE="$LIBS"
+    AS_IF([test "$memory_malloc_interpose_happy" = "yes"],
+          [AC_CHECK_LIB([dl],
+                        [dlsym],
+                        [memory_malloc_interpose_happy="yes"],
+                        [memory_malloc_interpose_happy="no"])])
+   LIBS="$memory_malloc_interpose_LIBS_SAVE"
+
+    AS_IF([test "$memory_malloc_interpose_happy" = "yes"],
+          [memory_malloc_interpose_WRAPPER_EXTRA_LIBS="-ldl"
+           memory_malloc_interpose_LIBS="-ldl"])
+
+   AS_IF([test "$memory_malloc_interpose_happy" = "no" -a \
+               "$memory_malloc_interpose_should_use" = "1"],
+         [AC_MSG_ERROR([malloc interpose memory management requested but not available.  Aborting.])])
+
+    AC_SUBST(memory_malloc_interpose_LIBS)
+
+    AS_IF([test "$memory_malloc_interpose_happy" = "yes"],
+          [$1], [$2])
+])
diff --git a/opal/mca/memory/malloc_interpose/configure.params b/opal/mca/memory/malloc_interpose/configure.params
new file mode 100644
index 0000000000..bf63a82c11
--- /dev/null
+++ b/opal/mca/memory/malloc_interpose/configure.params
@@ -0,0 +1,21 @@
+# -*- shell-script -*-
+#
+# Copyright (c) 2004-2005 The Trustees of Indiana University.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+#                         All rights reserved.
+# Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+#                         University of Stuttgart.  All rights reserved.
+# Copyright (c) 2004-2005 The Regents of the University of California.
+#                         All rights reserved.
+# $COPYRIGHT$
+# 
+# Additional copyrights may follow
+# 
+# $HEADER$
+#
+
+# Specific to this module
+
+PARAM_CONFIG_PRIORITY=10
+PARAM_CONFIG_FILES="Makefile"
diff --git a/opal/mca/memory/malloc_interpose/memory_malloc_interpose.c b/opal/mca/memory/malloc_interpose/memory_malloc_interpose.c
new file mode 100644
index 0000000000..9f2668d32c
--- /dev/null
+++ b/opal/mca/memory/malloc_interpose/memory_malloc_interpose.c
@@ -0,0 +1,132 @@
+/*
+ * Copyright (c) 2004-2005 The Trustees of Indiana University.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
+ *                         All rights reserved.
+ * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart, 
+ *                         University of Stuttgart.  All rights reserved.
+ * Copyright (c) 2004-2005 The Regents of the University of California.
+ *                         All rights reserved.
+ * $COPYRIGHT$
+ * 
+ * Additional copyrights may follow
+ * 
+ * $HEADER$
+ */
+
+#define OMPI_DISABLE_ENABLE_MEM_DEBUG 1
+#include "ompi_config.h"
+
+#include <sys/mman.h>
+#include <stdlib.h>
+#include <malloc.h>
+#include <dlfcn.h>
+
+#include "opal/include/constants.h"
+#include "opal/mca/memory/memory.h"
+#include "opal/memory/memory_internal.h"
+
+static int opal_memory_malloc_interpose_open(void);
+
+const opal_memory_base_component_1_0_0_t mca_memory_malloc_interpose_component = {
+    /* First, the mca_component_t struct containing meta information
+       about the component itself */
+    {
+        /* Indicate that we are a memory v1.0.0 component (which also
+           implies a specific MCA version) */
+        OPAL_MEMORY_BASE_VERSION_1_0_0,
+
+        /* Component name and version */
+        "malloc_interpose",
+        OPAL_MAJOR_VERSION,
+        OPAL_MINOR_VERSION,
+        OPAL_RELEASE_VERSION,
+
+        /* Component open and close functions */
+        opal_memory_malloc_interpose_open,
+        NULL
+    },
+
+    /* Next the MCA v1.0.0 component meta data */
+    {
+        /* Whether the component is checkpointable or not */
+        true
+    },
+};
+
+#define FIND_REALFREE() \
+    do { \
+        if (NULL == realfree) { \
+            realfree = (void (*)(void*)) dlsym(RTLD_NEXT, "free"); \
+        } \
+    } while (0);
+
+#define FIND_REALREALLOC() \
+    do { \
+        if (NULL == realrealloc) { \
+            realrealloc = (void* (*)(void*, size_t)) dlsym(RTLD_NEXT, "realloc"); \
+        } \
+    } while (0);
+
+#define FIND_REALMUNMAP() \
+    do { \
+        if (NULL == realmunmap) { \
+            realmunmap = (int (*)(void*, size_t)) dlsym(RTLD_NEXT, "munmap"); \
+        } \
+    } while (0);
+
+static void (*realfree)(void*);
+static void* (*realrealloc)(void*, size_t);
+static int (*realmunmap)(void*, size_t);
+
+static int
+opal_memory_malloc_interpose_open(void)
+{
+    opal_mem_free_set_free_support(1);
+
+    FIND_REALFREE();
+    FIND_REALREALLOC();
+    FIND_REALMUNMAP();
+
+    if (NULL == realfree || NULL == realrealloc || NULL == realmunmap) {
+        /* this shoudl really never happen */
+        fprintf(stderr, 
+                "Could not find real memory functions.  Aborting in dispair\n");
+        abort();
+    }
+
+    return OPAL_SUCCESS;
+}
+
+
+void
+free(void *ptr)
+{
+    FIND_REALFREE();
+
+    /* dispatch about the pending release */
+    opal_mem_free_release_hook(ptr, malloc_usable_size(ptr));    
+    realfree(ptr);
+}
+
+
+void*
+realloc(void *ptr, size_t size)
+{
+    FIND_REALREALLOC();
+
+    /* dispatch about the pending release */
+    opal_mem_free_release_hook(ptr, malloc_usable_size(ptr));
+    return realrealloc(ptr, size);
+}
+
+
+int
+munmap(void *start, size_t length)
+{
+    FIND_REALMUNMAP();
+
+    /* dispatch about the pending release */
+    opal_mem_free_release_hook(start, length);
+    return realmunmap(start, length);
+}
diff --git a/opal/mca/memory/ptmalloc2/configure.params b/opal/mca/memory/ptmalloc2/configure.params
index 895d40c2a9..e35f4e51bd 100644
--- a/opal/mca/memory/ptmalloc2/configure.params
+++ b/opal/mca/memory/ptmalloc2/configure.params
@@ -17,4 +17,5 @@
 
 # Specific to this module
 
+PARAM_CONFIG_PRIORITY=20
 PARAM_CONFIG_FILES="Makefile"