message: c++11: fix libbdb build against libc++ in c++11 mode
  atomic_init clashes with
diff: @@ -13,6 +13,7 @@ endef
  define $(package)_preprocess_cmds
  sed -i.old 's/__atomic_compare_exchange/__atomic_compare_exchange_db/' dbinc/atomic.h && \
  + sed -i.old 's/atomic_init/atomic_init_db/' dbinc/atomic.h mp/mp_region.c mp/mp_mvcc.c mp/mp_fget.c mutex/mut_method.c mutex/mut_tas.c && \
  cp -f $(BASEDIR)/config.guess dist && \
  cp -f $(BASEDIR)/config.sub dist
  endef
  