4 files changed, 4 insertions, 0 deletions
diff --git a/sal/inc/rtl/strbuf.hxx b/sal/inc/rtl/strbuf.hxx
index 7a28298f4cea..5f1c351238b6 100644
--- a/sal/inc/rtl/strbuf.hxx
+++ b/sal/inc/rtl/strbuf.hxx
@@ -23,6 +23,7 @@
 #include "sal/config.h"
 
 #include <cassert>
+#include <string.h>
 
 #include <rtl/strbuf.h>
 #include <rtl/string.hxx>
diff --git a/sal/inc/rtl/string.hxx b/sal/inc/rtl/string.hxx
index aeb752890d1f..f1e51b70005a 100644
--- a/sal/inc/rtl/string.hxx
+++ b/sal/inc/rtl/string.hxx
@@ -24,6 +24,7 @@
 
 #include <cassert>
 #include <ostream>
+#include <string.h>
 
 #include <osl/diagnose.h>
 #include <rtl/textenc.h>
diff --git a/sal/inc/rtl/ustrbuf.hxx b/sal/inc/rtl/ustrbuf.hxx
index 5f133bfc9205..f49f7f8bbd4c 100644
--- a/sal/inc/rtl/ustrbuf.hxx
+++ b/sal/inc/rtl/ustrbuf.hxx
@@ -23,6 +23,7 @@
 #include "sal/config.h"
 
 #include <cassert>
+#include <string.h>
 
 #include <osl/diagnose.h>
 #include <rtl/ustrbuf.h>
diff --git a/sal/inc/rtl/ustring.hxx b/sal/inc/rtl/ustring.hxx
index ec9f90ecd46f..4408dfd3d7b6 100644
--- a/sal/inc/rtl/ustring.hxx
+++ b/sal/inc/rtl/ustring.hxx
@@ -24,6 +24,7 @@
 
 #include <cassert>
 #include <ostream>
+#include <string.h>
 
 #include "osl/diagnose.h"
 #include <rtl/ustring.h>