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-rw-r--r--src/corelib/io/qfilesystemengine_win.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/corelib/io/qfilesystemengine_win.cpp b/src/corelib/io/qfilesystemengine_win.cpp
index 3f4b46573b..2020e34f93 100644
--- a/src/corelib/io/qfilesystemengine_win.cpp
+++ b/src/corelib/io/qfilesystemengine_win.cpp
@@ -555,7 +555,7 @@ typedef struct _FILE_ID_INFO {
#endif // if defined (Q_CC_MINGW) && WINVER < 0x0602
-// File ID for Windows up to version 7.
+// File ID for Windows up to version 7 and FAT32 drives
static inline QByteArray fileId(HANDLE handle)
{
#ifndef Q_OS_WINRT
@@ -588,6 +588,8 @@ QByteArray fileIdWin8(HANDLE handle)
result += ':';
// Note: MinGW-64's definition of FILE_ID_128 differs from the MSVC one.
result += QByteArray(reinterpret_cast<const char *>(&infoEx.FileId), int(sizeof(infoEx.FileId))).toHex();
+ } else {
+ result = fileId(handle); // GetFileInformationByHandleEx() is observed to fail for FAT32, QTBUG-74759
}
return result;
#else // !QT_BOOTSTRAPPED && !QT_BUILD_QMAKE