have_dup3_really   41 maint/gnulib/lib/dup3.c     static int have_dup3_really; /* 0 = unknown, 1 = yes, -1 = no */
have_dup3_really   42 maint/gnulib/lib/dup3.c     if (have_dup3_really >= 0)
have_dup3_really   47 maint/gnulib/lib/dup3.c             have_dup3_really = 1;
have_dup3_really   54 maint/gnulib/lib/dup3.c         have_dup3_really = -1;