Andrew Pinski <pins...@gmail.com> writes: > On Fri, Jul 15, 2011 at 11:52 PM, Ian Lance Taylor <i...@google.com> wrote: >> I would like to propose this patch as a step toward building gcc using a >> C++ compiler. This patch builds stage1 with the C compiler as usual, >> and defaults to building stages 2 and 3 with a C++ compiler built during >> stage 1. This means that the gcc installed and used by most people will >> be built by a C++ compiler. This will ensure that gcc is fully >> buildable with C++, while retaining the ability to bootstrap with only a >> C compiler, not a C++ compiler. This will permit us to experiment with >> optionally using C++ for some code, using a #ifdef to select the C >> implementation or the C++ implementation. >> >> I would suggest that we consider releasing 4.7 this way, as a small >> trial for building gcc with C++. > > Do you build libstdc++ at stage1 also? That is what happens if you > don't have a C++ compiler to begin with.
Yes. With this patch, we build cc1plus at stage 1, and use it to build libstdc++ at stage 1, and use both to build stage 2. Ian
