On linux ostream and endl need prefixing into the std namespace.

cde/programs/dtsearchpath/libCliSrv/TTFile.C

@@ -95,15 +95,32 @@ TTFile & TTFile::operator=
     return *this;
 }
 
+#if defined(linux)
+std::ostream & operator<<
+	(
+	std::ostream & os,
+	TTFile &  file
+	)
+#else
 ostream & operator<<
 	(
 	ostream & os,
 	TTFile &  file
 	)
+#endif
 {
     if (file.ttFileOpFailed())
+#if defined(linux)
+	return os << "Error in filename mapping; status = " 
+		  << file.getStatus() << std::endl;
+#else
 	return os << "Error in filename mapping; status = " 
 		  << file.getStatus() << endl;
+#endif
     else
+#if defined(linux)
+	return os << file.data() << std::endl;
+#else
 	return os << file.data() << endl;
+#endif
 }

cde/programs/dtsearchpath/libCliSrv/TTFile.h

@@ -65,7 +65,11 @@ class TTFile : public CString {
   };
 #else
   void TT_Exception (char *);
+#if defined(linux)
+  friend std::ostream & operator<< (std::ostream &, TTFile &);
+#else
   friend ostream & operator<< (ostream &, TTFile &);
+#endif
 #endif
 
   int  ttFileOpFailed () { return status != TT_OK; }

cde/programs/dtsearchpath/libCliSrv/cstring.h

@@ -72,7 +72,11 @@ class CString {
   int       isNull() const;
   void      replace (const CString &, const CString &);
 
+#if defined(linux)
+  friend std::ostream & operator<< (std::ostream &, const CString &);
+#else
   friend ostream & operator<< (ostream &, const CString &);
+#endif
 
  protected:
   char *        contents;