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-rw-r--r--include/salhelper/singletonref.hxx4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/salhelper/singletonref.hxx b/include/salhelper/singletonref.hxx
index 83bbf34ba6ac..84064be2a0ce 100644
--- a/include/salhelper/singletonref.hxx
+++ b/include/salhelper/singletonref.hxx
@@ -20,6 +20,10 @@
#ifndef INCLUDED_SALHELPER_SINGLETONREF_HXX
#define INCLUDED_SALHELPER_SINGLETONREF_HXX
+#include <sal/config.h>
+
+#include <cstddef>
+
#include <osl/mutex.hxx>
#include <rtl/instance.hxx>
#include <osl/diagnose.h>