On Wed, Apr 4, 2012 at 10:32 AM, Gabriel Dos Reis <g...@integrable-solutions.net> wrote: > On Tue, Apr 3, 2012 at 8:13 PM, David Edelsohn <dje....@gmail.com> wrote: >> On Tue, Apr 3, 2012 at 1:37 PM, Diego Novillo <dnovi...@google.com> wrote: >>> >>> We would like to start the process to make GCC 4.8 build in C++ mode by >>> default. >>> >>> The mechanics of the change are simple enough. I volunteer to test changing >>> the default on all primary targets (assuming I can get them from the GCC >>> build farm). >> >> I appreciate the motivation, but this may cause major problems on >> non-GNU/Linux platforms. Testing on all primary targets is not >> enough. >> >> Do you expect GCC to be able to bootstrap starting from a vendor C++ >> compiler or will this require G++? > > I would expect that we use C++03, and any C++ compiler.
Yes. Thus, for stage1 we should force -std=c++03 -pedantic if we build with GCC to avoid creep in of GNU features. Btw, I think we should only start forcing C++ when 1) there is a branch/patch out that shows benefit from using C++. I previously mentioned that I'd like to see 2) a patch that _properly_ wraps a C++ class for consumption by our garbage collector (thus, not a hack that works for a specific case but infrastructure that we think will work for _all_ cases, including libstdc++ container use). So - I'll veto the switch unless I see 1) and 2). 1) and 2) can be combined by transitioning vec.h to a C++ template class, with proper GC support. (not sure that I can veto anything - heh) Thanks, Richard.
