Closes #15161: add support for giving path as a fd for truncate() and pathconf().
diff --git a/Lib/os.py b/Lib/os.py
index 4a40cfe..f990627 100644
--- a/Lib/os.py
+++ b/Lib/os.py
@@ -172,8 +172,10 @@
_add("HAVE_FDOPENDIR", "listdir")
_add("HAVE_FEXECVE", "execve")
_set.add(stat) # fstat always works
+ _add("HAVE_FTRUNCATE", "truncate")
_add("HAVE_FUTIMENS", "utime")
_add("HAVE_FUTIMES", "utime")
+ _add("HAVE_FPATHCONF", "pathconf")
if _exists("statvfs") and _exists("fstatvfs"): # mac os x10.3
_add("HAVE_FSTATVFS", "statvfs")
supports_fd = _set