Compilation fix in C++98 mode.

diff --git a/src/frontends/qt4/GuiDelimiter.h b/src/frontends/qt4/GuiDelimiter.h
index 7bd6ee610be5775e1dfde3f62ed8d36c85e17fcd..fb0c0bc64f6cf9753e26a602ffef60d29fd9793f 100644 (file)
--- a/src/frontends/qt4/GuiDelimiter.h
+++ b/src/frontends/qt4/GuiDelimiter.h
@@ -16,6 +16,8 @@
 
 #include "ui_DelimiterUi.h"
 
+#include "support/docstring.h"
+
 class QListWidgetItem;
 
 namespace lyx {