* Headers only include <iosfwd> from now on, since that contains all the

[ginac.git] / ginac / fderivative.cpp

diff --git a/ginac/fderivative.cpp b/ginac/fderivative.cpp
index cefa165d6e59d9e0ffe882789252dc3dea2066fa..57f4ed764de21e248c94174f306e8afcdafefc7f 100644 (file)
--- a/ginac/fderivative.cpp
+++ b/ginac/fderivative.cpp
@@ -20,6 +20,8 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <iostream>
+
 #include "fderivative.h"
 #include "print.h"
 #include "archive.h"