clang/test/lit.cfg: Improve is_filesystem_case_insensitive() to work properly on...

Cygwin does not accept the form /CYGDRIVE/X/PATH/TO/FILE against /cygdrive/X/PATH/TO/FILE.
"cygdrive" must be lower-cased.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@185323 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/lit.cfg b/test/lit.cfg
index 80243193c1e11762c1a99de4c140aa7673aa6940..bf8528b3f68a2984d662fd2df1621265aaf436a7 100644 (file)
--- a/test/lit.cfg
+++ b/test/lit.cfg
@@ -246,7 +246,11 @@ if platform.system() not in ['Windows']:
 # Case-insensitive file system
 def is_filesystem_case_insensitive():
     handle, path = tempfile.mkstemp(prefix='case-test', dir=config.test_exec_root)
-    isInsensitive = os.path.exists(path.upper())
+    isInsensitive = os.path.exists(
+        os.path.join(
+            os.path.dirname(path),
+            os.path.basename(path).upper()
+            ))
     os.close(handle)
     os.remove(path)
     return isInsensitive