Fixed optionsvisitor private member function issue.

diff --git a/src/gromacs/options/optionsvisitor.h b/src/gromacs/options/optionsvisitor.h
index 8e1a86c19fbba9b880d715f177f6bf0f66696ded..36e23ed3235fbb67bb8350a2becfab08ce092899 100644 (file)
--- a/src/gromacs/options/optionsvisitor.h
+++ b/src/gromacs/options/optionsvisitor.h
@@ -92,6 +92,8 @@ class OptionInfo
         // Disallow copy and assign.
         OptionInfo(const OptionInfo &);
         void operator =(const OptionInfo &);
+
+        friend class OptionsIterator;
 };
 
 /*! \libinternal \brief