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-rw-r--r--src/corelib/io/qlockfile_unix.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/corelib/io/qlockfile_unix.cpp b/src/corelib/io/qlockfile_unix.cpp
index b2bf77c0da..ce2b7e8faa 100644
--- a/src/corelib/io/qlockfile_unix.cpp
+++ b/src/corelib/io/qlockfile_unix.cpp
@@ -58,7 +58,8 @@
#include <sys/file.h> // flock
#endif
-#if defined(Q_OS_RTEMS)
+#if defined(Q_OS_RTEMS) || defined(Q_OS_QNX)
+// flock() does not work in these OSes and produce warnings when we try to use
# undef LOCK_EX
# undef LOCK_NB
#endif