zero               66 maint/gnulib/tests/test-cloexec.c static int zero (void) { return 0; }
zero               46 maint/gnulib/tests/test-dup-safer.c static int zero (void) { return 0; }
zero               96 maint/gnulib/tests/test-dup2.c static int zero (void) { return 0; }
zero               50 maint/gnulib/tests/test-fcntl.c static int zero (void) { return 0; }