more explicit message on problem

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/simgrid/simgrid/trunk@6599 48e7efb5-ca39-0410-a469-dd3cf9ba447f

diff --git a/src/surf/trace_mgr.c b/src/surf/trace_mgr.c
index d32f938..5c5944c 100644 (file)
--- a/src/surf/trace_mgr.c
+++ b/src/surf/trace_mgr.c
@@ -114,7 +114,8 @@ tmgr_trace_t tmgr_trace_new(const char *filename)
   }
 
   f = surf_fopen(filename, "r");
-  xbt_assert1(f!=NULL, "Cannot open file '%s'", filename);
+  xbt_assert2(f!=NULL, "Cannot open file '%s' (path=%s)", filename,
+       xbt_str_join(surf_path,":"));
 
   char *tstr = xbt_str_from_file(f);
   fclose(f);