[gcc r12-7100] libstdc++: Adjust Filesystem TS test for Windows

[Jonathan Wakely <redi@gcc.gnu.org>]

https://gcc.gnu.org/g:61b783995fac5355827ada1f8544052119a23606

commit r12-7100-g61b783995fac5355827ada1f8544052119a23606
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Tue Feb 8 12:45:46 2022 +0000

    libstdc++: Adjust Filesystem TS test for Windows
    
    The Filesystem TS isn't really supported for Windows, but the FAIL for
    this test is just because it doesn't match what happens on Windows.
    
    libstdc++-v3/ChangeLog:
    
            * testsuite/experimental/filesystem/operations/create_directories.cc:
            Adjust expected results for Windows.

Diff:
---
 .../filesystem/operations/create_directories.cc           | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directories.cc b/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directories.cc
index 8cdc7030441..03060c6cbb3 100644
--- a/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directories.cc
+++ b/libstdc++-v3/testsuite/experimental/filesystem/operations/create_directories.cc
@@ -108,8 +108,15 @@ test02()
     VERIFY( !result );
     VERIFY( ec == std::errc::not_a_directory );
     result = create_directories(file.path/"../bar", ec);
+#if defined(__MINGW32__) || defined(__MINGW64__)
+    VERIFY( result );
+    VERIFY( !ec );
+    VERIFY( is_directory(dir.path/"bar") );
+    remove(dir.path/"bar");
+#else
     VERIFY( !result );
     VERIFY( ec );
+#endif
   }
 }
 
@@ -120,11 +127,19 @@ test03()
   const auto p = __gnu_test::nonexistent_path() / "/";
   bool result = create_directories(p);
   VERIFY( result );
+#if defined(__MINGW32__) || defined(__MINGW64__)
+  VERIFY( exists(p/".") ); // needed due to PR libstdc++/88881
+#else
   VERIFY( exists(p) );
+#endif
   remove(p);
   result = create_directories(p/"foo/");
   VERIFY( result );
+#if defined(__MINGW32__) || defined(__MINGW64__)
+  VERIFY( exists(p/".") ); // needed due to PR libstdc++/88881
+#else
   VERIFY( exists(p) );
+#endif
   VERIFY( exists(p/"foo") );
   remove_all(p);
 }