dup3 29 maint/gnulib/lib/dup3.c dup3 (int oldfd, int newfd, int flags) dup3 32 maint/gnulib/lib/dup3.c # undef dup3 dup3 532 maint/gnulib/lib/unistd.in.h # define dup3 rpl_dup3 dup3 542 maint/gnulib/lib/unistd.in.h # undef dup3