I was thinking that void* is the most generic type of object pointer. And I was wrong as the type void* is

signed.

This commit was SVN r5437.

src/mca/iof/svc/iof_svc_sub.c

@@ -179,7 +179,7 @@ int orte_iof_svc_sub_forward(
             frag->frag_len = frag->frag_hdr.hdr_msg.msg_len;
             frag->frag_iov[0].iov_base = (void*)&frag->frag_hdr;
             frag->frag_iov[0].iov_len = sizeof(frag->frag_hdr);
-            frag->frag_iov[1].iov_base = frag->frag_data;
+            frag->frag_iov[1].iov_base = (void*)frag->frag_data;
             frag->frag_iov[1].iov_len = frag->frag_len;
             memcpy(frag->frag_data, data, frag->frag_len);
             ORTE_IOF_BASE_HDR_MSG_NTOH(frag->frag_hdr.hdr_msg);