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-rw-r--r--src/corelib/io/qlockfile_unix.cpp6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/corelib/io/qlockfile_unix.cpp b/src/corelib/io/qlockfile_unix.cpp
index 418b7d22ba..14fa044089 100644
--- a/src/corelib/io/qlockfile_unix.cpp
+++ b/src/corelib/io/qlockfile_unix.cpp
@@ -58,6 +58,12 @@
#include <sys/file.h> // flock
#endif
+#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
+
#include <sys/types.h> // kill
#include <signal.h> // kill
#include <unistd.h> // gethostname