On 8/26/07, Kaveh R. GHAZI <[EMAIL PROTECTED]> wrote: > On Fri, 24 Aug 2007, Brian Sidebotham wrote: > > > This ICE is caused by the following patch: > > > > 2007-08-10 Kaveh R. Ghazi <[EMAIL PROTECTED]> > > > > * system.h (CONST_CAST): New. > > * c-decl.c (c_make_fname_decl): Use it. > > * c-lex.c (cb_ident, lex_string): Likewise. > > * c-typeck.c (free_all_tagged_tu_seen_up_to): Likewise. > > * gcc.c (set_spec, read_specs, for_each_path, execute, do_spec_1, > > give_switch, set_multilib_dir): Likewise. > > * gengtype-parse.c (string_seq, typedef_name): Likewise. > > * passes.c (execute_one_pass): Likewise. > > * prefix.c (update_path): Likewise. > > * pretty-print.c (pp_base_destroy_prefix): Likewise. > > * tree.c (build_string): Likewise. > > > > Reverting this patch lets gcc build again. > > > > Unfortunately, CONST_CAST is a mystery to me (I don't understand it!) so > > there > > is no hope of me changing it to compile okay AND be right! > > The definition of the CONST_CAST macro is syntactically correct, you don't > need to change it. The problem is that gcc-4.0.x has a bug exposed by > this expression. I reproduced it on sparc-sun-solaris2.10 with gcc-4.0.4. > > I've many times succesfully bootstrapped GCC with other (older!) versions > (2.8.1, 3.4.6) so it's just random bad luck we ran into this now. I also > verified that your tree.i file compiles with 4.1.3 (prerelease) and 4.2.2 > (prerelease). Mainline obviously works too or nobody could bootstrap. > So I believe the ICE is something confined to the 4.0.x series. > > Does this work for you? If so, I'll install it as "obvious". > > Thanks, > --Kaveh > > > 2007-08-26 Kaveh R. Ghazi <[EMAIL PROTECTED]> > > * system.h (CONST_CAST): Avoid union for gcc-4.0.x. > > diff -rup orig/egcc-SVN20070825/gcc/system.h egcc-SVN20070825/gcc/system.h > --- orig/egcc-SVN20070825/gcc/system.h 2007-08-10 14:11:38.000000000 -0400 > +++ egcc-SVN20070825/gcc/system.h 2007-08-26 12:29:12.577795974 -0400 > @@ -774,7 +774,9 @@ extern void fancy_abort (const char *, i > execv, et al. Another valid use would be in an allocation function > that creates const objects that need to be initialized. Most other > cases should be viewed with extreme caution. */ > -#ifdef __GNUC__ > + > +#if defined(__GNUC__) && GCC_VERSION != 4000
There were 4.0.0, 4.0.1, 4.0.2, 4.0.3 and 4.0.4 releases. Richard.
