[Bug fortran/58226] negative subscript pos at fortran/options.c:1205

[burnus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58226

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|WAITING                     |NEW
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> ---
Also works for me as I have "-mtune=generic -march=x86-64" by default.

Code wise, I think one should do something like the following:

--- options.c   (Revision 203206)
+++ options.c   (Arbeitskopie)
@@ -1139,6 +1139,10 @@ gfc_get_option_string (void)
   size_t len, pos;
   char *result;

+  /* Allocate and return a one-character string with '\0'.  */ 
+  if (!save_decoded_options_count)
+    return = XCNEWVEC (char, 1);
+
   /* Determine required string length.  */

   len = 0;