On Wed, 9 Nov 2011, Tobias Burnus wrote: > Steve Kargl wrote: > > With top of tree, I'm seeing > > > > % ../gcc4x/configure --prefix=$HOME/work --enable-languages=c,fortran \ > > --disable-libmudflap --disable-bootstrap > > % gmake > > I think the issue is that by default the trunk is build (stage 1) by the > system C compiler and the next stages (Stage 2 and 3) are build by the > just-build C++ compiler. Thus, the C++ compiler supports the latest C++ > features and also the latest options. > > If one now uses --disable-bootstrap, the system C++ compiler is used to > compile the first and last stage - but if the system C++ compiler is slightly > older, it might not support the newest compiler flags.
libitm is a target library, not a host library. Under no circumstances should it ever be built with a C++ compiler other than that newly built as part of GCC. If the C++ compiler is not being built then libitm should not be built. If the C++ compiler is being built, the newly built compiler should be what it used to build libitm. -- Joseph S. Myers jos...@codesourcery.com
