pipe 32 maint/gnulib/lib/pipe.c pipe (int fd[2]) pipe 26 maint/gnulib/lib/unistd--.h #undef pipe pipe 27 maint/gnulib/lib/unistd--.h #define pipe pipe_safer pipe 1711 maint/gnulib/lib/unistd.in.h # undef pipe pipe 46 maint/gnulib/tests/test-poll.c #define pipe(x) _pipe(x, 256, O_BINARY)