[llvm] [hurd] Fix accessing f_type field of statvfs (PR #71851)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-support

Author: Samuel Thibault (sthibaul)

<details>
<summary>Changes</summary>

f4719c4d2cda ("Add support for GNU Hurd in Path.inc and other places") made llvm use an internal __f_type name for the f_type field (which it is not supposed to since accessing double-underscore names is explicitly not supported by standards). In glibc 2.39 this field was renamed to f_type so application can now access the field as the standard says.

---
Full diff: https://github.com/llvm/llvm-project/pull/71851.diff


1 Files Affected:

- (modified) llvm/lib/Support/Unix/Path.inc (+1-1) 


``````````diff
diff --git a/llvm/lib/Support/Unix/Path.inc b/llvm/lib/Support/Unix/Path.inc
index 68ca58fda3b8fe0..6ea0c4cac4d4def 100644
--- a/llvm/lib/Support/Unix/Path.inc
+++ b/llvm/lib/Support/Unix/Path.inc
@@ -487,7 +487,7 @@ static bool is_local_impl(struct STATVFS &Vfs) {
 #ifndef CIFS_MAGIC_NUMBER
 #define CIFS_MAGIC_NUMBER 0xFF534D42
 #endif
-#ifdef __GNU__
+#if defined(__GNU__) && ((__GLIBC__ < 2) || ((__GLIBC__ == 2) && (__GLIBC_MINOR__ < 39)))
   switch ((uint32_t)Vfs.__f_type) {
 #else
   switch ((uint32_t)Vfs.f_type) {

``````````

</details>


https://github.com/llvm/llvm-project/pull/71851