3 files changed, 2 insertions, 48 deletions
diff --git a/src/corelib/io/qfilesystemengine.cpp b/src/corelib/io/qfilesystemengine.cpp
index 02aa2ff4b7..055ff3600b 100644
--- a/src/corelib/io/qfilesystemengine.cpp
+++ b/src/corelib/io/qfilesystemengine.cpp
@@ -216,7 +216,7 @@ bool QFileSystemEngine::fillMetaData(int fd, QFileSystemMetaData &data)
     return false;
 }
 
-#if defined(QT_EXT_QNX_READDIR_R)
+#if defined(_DEXTRA_FIRST)
 static void fillStat64fromStat32(struct stat64 *statBuf64, const struct stat &statBuf32)
 {
     statBuf64->st_mode = statBuf32.st_mode;
@@ -281,7 +281,7 @@ void QFileSystemMetaData::fillFromStatBuf(const QT_STATBUF &statBuffer)
 
 void QFileSystemMetaData::fillFromDirEnt(const QT_DIRENT &entry)
 {
-#if defined(QT_EXT_QNX_READDIR_R)
+#if defined(_DEXTRA_FIRST)
     knownFlagsMask = 0;
     entryFlags = 0;
     for (dirent_extra *extra = _DEXTRA_FIRST(&entry); _DEXTRA_VALID(extra, &entry);
diff --git a/src/corelib/io/qfilesystemiterator_p.h b/src/corelib/io/qfilesystemiterator_p.h
index 119068a648..51dfe65f57 100644
--- a/src/corelib/io/qfilesystemiterator_p.h
+++ b/src/corelib/io/qfilesystemiterator_p.h
@@ -87,14 +87,6 @@ private:
 #else
     QT_DIR *dir;
     QT_DIRENT *dirEntry;
-#if defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_CYGWIN) || defined(QT_EXT_QNX_READDIR_R)
-    // for readdir_r
-    QScopedPointer<QT_DIRENT, QScopedPointerPodDeleter> mt_file;
-#if defined(QT_EXT_QNX_READDIR_R)
-    // for _readdir_r
-    size_t direntSize;
-#endif
-#endif
     int lastError;
 #endif
 
diff --git a/src/corelib/io/qfilesystemiterator_unix.cpp b/src/corelib/io/qfilesystemiterator_unix.cpp
index 6f094bd3b2..7d0e910188 100644
--- a/src/corelib/io/qfilesystemiterator_unix.cpp
+++ b/src/corelib/io/qfilesystemiterator_unix.cpp
@@ -46,9 +46,6 @@ QFileSystemIterator::QFileSystemIterator(const QFileSystemEntry &entry, QDir::Fi
     : nativePath(entry.nativeFilePath())
     , dir(0)
     , dirEntry(0)
-#if defined(Q_OS_QNX) && defined(__EXT_QNX__READDIR_R)
-    , direntSize(0)
-#endif
     , lastError(0)
 {
     Q_UNUSED(filters)
@@ -58,32 +55,8 @@ QFileSystemIterator::QFileSystemIterator(const QFileSystemEntry &entry, QDir::Fi
     if ((dir = QT_OPENDIR(nativePath.constData())) == 0) {
         lastError = errno;
     } else {
-
         if (!nativePath.endsWith('/'))
             nativePath.append('/');
-
-#if defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_CYGWIN) || defined(QT_EXT_QNX_READDIR_R)
-        // ### Race condition; we should use fpathconf and dirfd().
-        size_t maxPathName = ::pathconf(nativePath.constData(), _PC_NAME_MAX);
-        if (maxPathName == size_t(-1))
-            maxPathName = FILENAME_MAX;
-        maxPathName += sizeof(QT_DIRENT) + 1;
-
-        QT_DIRENT *p = reinterpret_cast<QT_DIRENT*>(::malloc(maxPathName));
-        Q_CHECK_PTR(p);
-
-        mt_file.reset(p);
-#if defined(QT_EXT_QNX_READDIR_R)
-        direntSize = maxPathName;
-
-        // Include extra stat information in the readdir() call (d_stat member of
-        // dirent_extra_stat). This is used in QFileSystemMetaData::fillFromDirEnt() to
-        // avoid extra stat() calls when iterating over directories
-        int flags = dircntl(dir, D_GETFLAG) |  D_FLAG_STAT | D_FLAG_FILTER;
-        if (dircntl(dir, D_SETFLAG, flags) == -1)
-            lastError = errno;
-#endif
-#endif
     }
 }
 
@@ -98,18 +71,7 @@ bool QFileSystemIterator::advance(QFileSystemEntry &fileEntry, QFileSystemMetaDa
     if (!dir)
         return false;
 
-#if defined(QT_EXT_QNX_READDIR_R)
-    lastError = QT_EXT_QNX_READDIR_R(dir, mt_file.data(), &dirEntry, direntSize);
-    if (lastError)
-        return false;
-#elif defined(_POSIX_THREAD_SAFE_FUNCTIONS) && !defined(Q_OS_CYGWIN)
-    lastError = QT_READDIR_R(dir, mt_file.data(), &dirEntry);
-    if (lastError)
-        return false;
-#else
-    // ### add local lock to prevent breaking reentrancy
     dirEntry = QT_READDIR(dir);
-#endif // _POSIX_THREAD_SAFE_FUNCTIONS
 
     if (dirEntry) {
         fileEntry = QFileSystemEntry(nativePath + QByteArray(dirEntry->d_name), QFileSystemEntry::FromNativePath());