Grepping through the source files I found these calls to the data-type engine

with the wrong type of arguments.

This commit was SVN r12148.

ompi/mca/btl/gm/btl_gm.c

@@ -433,7 +433,7 @@ mca_btl_base_descriptor_t* mca_btl_gm_prepare_dst(
 #if (OMPI_MCA_BTL_GM_HAVE_RDMA_GET || OMPI_MCA_BTL_GM_HAVE_RDMA_PUT)
     mca_btl_gm_frag_t* frag;
     mca_mpool_base_module_t* mpool = btl->btl_mpool;
-    long lb;
+    ptrdiff_t lb;
     int rc;
 
     MCA_BTL_GM_FRAG_ALLOC_USER(btl, frag, rc);

ompi/mca/btl/mvapi/btl_mvapi.c

@@ -455,7 +455,7 @@ mca_btl_base_descriptor_t* mca_btl_mvapi_prepare_dst(
     mca_btl_mvapi_module_t* mvapi_btl; 
     mca_btl_mvapi_frag_t* frag; 
     mca_mpool_mvapi_registration_t * vapi_reg; 
-    long lb;
+    ptrdiff_t lb;
     int rc; 
     
     mvapi_btl = (mca_btl_mvapi_module_t*) btl; 

ompi/mca/btl/openib/btl_openib.c

@@ -523,7 +523,7 @@ mca_btl_base_descriptor_t* mca_btl_openib_prepare_dst(
     mca_btl_openib_frag_t* frag; 
     mca_mpool_openib_registration_t * openib_reg; 
     int rc; 
-    long lb;
+    ptrdiff_t lb;
     size_t reg_len; 
 
     openib_btl = (mca_btl_openib_module_t*) btl; 

ompi/mca/btl/portals/btl_portals.c

@@ -427,7 +427,7 @@ mca_btl_portals_prepare_dst(struct mca_btl_base_module_t* btl_base,
     ptl_md_t md;
     ptl_handle_me_t me_h;
     int ret;
-    long lb;
+    ptrdiff_t lb;
 
     assert(&mca_btl_portals_module == (mca_btl_portals_module_t*) btl_base);
 

ompi/mca/btl/self/btl_self.c

@@ -270,7 +270,7 @@ struct mca_btl_base_descriptor_t* mca_btl_self_prepare_dst(
 {
     mca_btl_self_frag_t* frag;
     size_t max_data = *size;
-    long lb;
+    ptrdiff_t lb;
     int rc;
 
     MCA_BTL_SELF_FRAG_ALLOC_RDMA(frag, rc);

ompi/mca/btl/tcp/btl_tcp.c

@@ -337,7 +337,7 @@ mca_btl_base_descriptor_t* mca_btl_tcp_prepare_dst(
     size_t* size)
 {
     mca_btl_tcp_frag_t* frag;
-    long lb;
+    ptrdiff_t lb;
     int rc;
 
     MCA_BTL_TCP_FRAG_ALLOC_USER(frag, rc);

ompi/mca/btl/udapl/btl_udapl.c

@@ -588,7 +588,7 @@ mca_btl_base_descriptor_t* mca_btl_udapl_prepare_dst(
 {
     mca_btl_udapl_frag_t* frag;
     mca_mpool_base_module_t* mpool = btl->btl_mpool;
-    long lb;
+    ptrdiff_t lb;
     int rc;
 
     OPAL_OUTPUT((0, "udapl_prepare_dst\n"));