The following should fix PR54326 (3.4.6 at least compiles genoutput.c without warnings after this).
Bootstrap running on x86_64-unknown-linux-gnu. Richard. 2012-08-20 Richard Guenther <rguent...@suse.de> PR bootstrap/54326 * genoutput.c (note_constraint): Properly use CONST_CAST. Index: gcc/genoutput.c =================================================================== --- gcc/genoutput.c (revision 190523) +++ gcc/genoutput.c (working copy) @@ -1175,7 +1175,7 @@ note_constraint (rtx exp, int lineno) } } new_cdata = XNEWVAR (struct constraint_data, sizeof (struct constraint_data) + namelen); - strcpy ((char *)new_cdata + offsetof(struct constraint_data, name), name); + strcpy (CONST_CAST(char *, new_cdata->name), name); new_cdata->namelen = namelen; new_cdata->lineno = lineno; new_cdata->next_this_letter = *slot;