X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Ffrontends%2Fxforms%2FDropDown.C;h=6d8791e12a78f0b6f658a236aca0ab2b6534f689;hb=27652900a60fd078f161ce866ddaed21dba21eff;hp=75f2c45b5d04d10de33284e471a70e1b3cd5e02f;hpb=998ddf60e34ce1d43455fadbf70a815dd4556e8e;p=lyx.git

diff --git a/src/frontends/xforms/DropDown.C b/src/frontends/xforms/DropDown.C
index 75f2c45b5d..6d8791e12a 100644
--- a/src/frontends/xforms/DropDown.C
+++ b/src/frontends/xforms/DropDown.C
@@ -12,6 +12,7 @@
 #include "xforms_helpers.h"
 
 #include <iostream>
+#include <cctype>
  
 namespace {