fix compilation

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4557 a592a061-630c-0410-9148-cb99ea01b6c8

diff --git a/src/mathed/math_casesinset.C b/src/mathed/math_casesinset.C
index f21895f0634515fa75a235363d197b6a04a4ee0a..09992ed670ed78391e9aaf186f18b313dc6c10b7 100644 (file)
--- a/src/mathed/math_casesinset.C
+++ b/src/mathed/math_casesinset.C
@@ -8,6 +8,7 @@
 #include "math_parser.h"
 #include "math_mathmlstream.h"
 #include "math_support.h"
+#include "support/LOstream.h"
 
 
 MathCasesInset::MathCasesInset(row_type n)