On Sun, Jul 17, 2011 at 12:57 AM, Ian Lance Taylor <i...@google.com> wrote: > Diego Novillo <dnovi...@google.com> writes: > >> On Sat, Jul 16, 2011 at 02:52, Ian Lance Taylor <i...@google.com> wrote: >> >>> 2011-07-15 Ian Lance Taylor <i...@google.com> >>> >>> * configure.ac: Add --enable-build-poststage1-with-cxx. If set, >>> make C++ a boot_language. Set and substitute >>> POSTSTAGE1_CONFIGURE_FLAGS. >>> * Makefile.tpl (POSTSTAGE1_CONFIGURE_FLAGS): New variable. >>> (STAGE[+id+]_CONFIGURE_FLAGS): Add $(POSTSTAGE1_CONFIGURE_FLAGS). >>> * configure, Makefile.in: Rebuild. >> >> I agree with this change.
I agree with this change as well. It will give us the opportunity to experience debugging a C++ built cc1 ... >> For reference, have you measured the >> difference in bootstrap time? Clearly, it will be slower, but how >> much? > > I have not measured the change in bootstrap time, no. I have measured it at some point and IIRC it was about 10% slower (comparing C bootstrap with C++ in stag1 languages with C++ bootstrap, not sure if that included bootstrapping libstdc++ for the former). Richard. > Ian >
