simplify GuiToc / TocWidget interaction. Much can still be simplified...

[lyx.git] / src / mathed / MathData.cpp

diff --git a/src/mathed/MathData.cpp b/src/mathed/MathData.cpp
index 33446a4aa3f86ae576c92d0bf1c95af3852ce791..ec5c443f317dec79efd7f2cc0e9f3b84457f32c1 100644 (file)
--- a/src/mathed/MathData.cpp
+++ b/src/mathed/MathData.cpp
@@ -37,6 +37,8 @@
 #include <boost/assert.hpp>
 #include <boost/next_prior.hpp>
 
+#include <cstdlib>
+
 using namespace std;
 
 namespace lyx {