add missing #include

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@17549 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/frontends/qt4/QCitationDialog.C b/src/frontends/qt4/QCitationDialog.C
index 18d0ebc1e91b06b908dd9666d53323d5335c36ea..b63cada9a2dfd92ddfaedaf31bfdb189d65bcfd1 100644 (file)
--- a/src/frontends/qt4/QCitationDialog.C
+++ b/src/frontends/qt4/QCitationDialog.C
@@ -23,6 +23,7 @@
 #include "debug.h"
 #include "gettext.h"
 
+#include <algorithm>
 #include <vector>
 #include <string>