diff options
Diffstat (limited to 'Modules/posixmodule.c')
| -rw-r--r-- | Modules/posixmodule.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c index 40229bce0f..2e89e2fb1d 100644 --- a/Modules/posixmodule.c +++ b/Modules/posixmodule.c @@ -9316,7 +9316,9 @@ os_dup_impl(PyObject *module, int fd) return _Py_dup(fd); } - +// dup2() is either provided by libc or dup2.c with AC_REPLACE_FUNCS(). +// dup2.c provides working dup2() if and only if F_DUPFD is available. +#if (defined(HAVE_DUP3) || defined(F_DUPFD) || defined(MS_WINDOWS)) /*[clinic input] os.dup2 -> int fd: int @@ -9416,6 +9418,7 @@ os_dup2_impl(PyObject *module, int fd, int fd2, int inheritable) return res; } +#endif #ifdef HAVE_LOCKF |