--- cmn.old/utils.h	2009-08-22 02:16:21.000000000 +0300
+++ cmn.old/utils.h	2009-08-22 02:26:33.000000000 +0300
@@ -238,13 +238,13 @@ 
      same. */
 
   static char* strchr(const char* cs,int c)
-    {return ::strchr(cs,c);}
+    {return const_cast<char*>(::strchr(cs,c));}
 
   static char* strrchr(const char* cs,int c)
-    {return ::strrchr(cs,c);}
+    {return const_cast<char*>(::strrchr(cs,c));}
 
   static char* strstr(const char* cs,const char* ct)
-    {return ::strstr(cs,ct);}
+    {return const_cast<char*>(::strstr(cs,ct));}
 
   static void strcpy(char* s,const char* ct)
     {::strcpy(s,ct);}