IS_EAGAIN         105 maint/gnulib/lib/pipe-filter-aux.h # define IS_EAGAIN(errcode) 0
IS_EAGAIN         108 maint/gnulib/lib/pipe-filter-aux.h #  define IS_EAGAIN(errcode) ((errcode) == EAGAIN || (errcode) == EWOULDBLOCK)
IS_EAGAIN         110 maint/gnulib/lib/pipe-filter-aux.h #  define IS_EAGAIN(errcode) ((errcode) == EAGAIN)