3373 gcc >= 4.5 concerns about offsetof()

*** 34,44 ****
  #include <sys/ib/clients/of/sol_ofs/sol_ofs_common.h>
  #include <sys/ib/clients/of/rdma/rdma_cm.h>
  #include <sys/ib/clients/of/sol_ofs/sol_ib_cma.h> /* Transport Specific */
  
  #if !defined(offsetof)
! #define offsetof(s, m)          (size_t)(&(((s *)0)->m))
  #endif
  
  #define IS_UDP_CMID(idp)        ((idp)->ps == RDMA_PS_UDP || \
          (idp)->ps == RDMA_PS_IPOIB)
  #define IS_VALID_SOCKADDR(sockaddrp) \
--- 34,48 ----
  #include <sys/ib/clients/of/sol_ofs/sol_ofs_common.h>
  #include <sys/ib/clients/of/rdma/rdma_cm.h>
  #include <sys/ib/clients/of/sol_ofs/sol_ib_cma.h> /* Transport Specific */
  
  #if !defined(offsetof)
! #if defined(__GNUC__)
! #define offsetof(s, m)  __builtin_offsetof(s, m)
! #else
! #define offsetof(s, m)  ((size_t)(&(((s *)0)->m)))
! #endif
  #endif
  
  #define IS_UDP_CMID(idp)        ((idp)->ps == RDMA_PS_UDP || \
          (idp)->ps == RDMA_PS_IPOIB)
  #define IS_VALID_SOCKADDR(sockaddrp) \