diff --git a/mrw/stacktrace.cpp b/mrw/stacktrace.cpp
index e2fcff8..456530d 100644
--- a/mrw/stacktrace.cpp
+++ b/mrw/stacktrace.cpp
@@ -9,6 +9,9 @@
     @license LGPL, see file <a href="license.html">COPYING</a>
 
     $Log$
+    Revision 1.4  2004/10/07 09:32:45  marc
+    correction in parameter (const&)
+
     Revision 1.3  2004/08/28 16:21:25  marc
     mrw-c++-0.92 (mrw)
     - new file: version.cpp
@@ -177,7 +180,7 @@ namespace mrw {
   }
 
   //----------------------------------------------------------------------------
-  bool StackTrace::createSymtable(std::string fname) throw(std::bad_exception) {
+  bool StackTrace::createSymtable(const std::string& fname) throw(std::bad_exception) {
     if (_dic.get()) return true;
     AutoBfd abfd(bfd_openr((fname!="" ? fname : filename()).c_str(), 0));
     long memsz(-1);
diff --git a/mrw/stacktrace.hpp b/mrw/stacktrace.hpp
index a671211..b7896c7 100644
--- a/mrw/stacktrace.hpp
+++ b/mrw/stacktrace.hpp
@@ -9,6 +9,9 @@
     @license LGPL, see file <a href="license.html">COPYING</a>
 
     $Log$
+    Revision 1.5  2004/10/07 09:32:45  marc
+    correction in parameter (const&)
+
     Revision 1.4  2004/08/28 16:21:25  marc
     mrw-c++-0.92 (mrw)
     - new file: version.cpp
@@ -23,7 +26,6 @@
     - possibility to compile without stack trace
 
 */
-// g++ -Wall -D__SOLARIS__ -g -I /home/public/freeware/include -L /home/public/freeware/lib -I . stacktrace.cxx -lbfd -liberty
 #ifndef __MRW_STACKTRACE_HPP__
 #define __MRW_STACKTRACE_HPP__
 #include <mrw/auto.hpp>
@@ -175,7 +177,7 @@ namespace mrw {
     
       /** @brief read the symbol table from the executable file
 
-          @param std::string The file name of the executable. On Linux
+          @param fname The file name of the executable. On Linux
           and Solaris, this can be evaluated automatically, so the
           parameter is optional.
 
@@ -193,7 +195,7 @@ namespace mrw {
           are created only the first time, so you don't loose too much
           time.
        */
-      static bool createSymtable(std::string = "") throw(std::bad_exception);
+      static bool createSymtable(const std::string& fname="") throw(std::bad_exception);
     private:
       //............................................................... typedefs
       typedef std::map<bfd_vma, std::pair<bfd_vma, asection*> >