Re: libstdc++-v3 on RedHat 7 - how ?

["Dr. David Gilbert" <dg at px dot uk dot com>]

On Mon, 30 Oct 2000, Phil Edwards wrote:

> Hmmmmmmm.  Some of the recent important bugfixes to the library also
> involved changing the gcc sources.  So when we want to work on the library,
> we're generally using current CVS all the way around.
> 
> The last full bootstrap I did was with the 20001024 sources.  If you're
> going to do a full build, you might start somewhere in there.  The main
> flag you need to use during configuration is --enable-libstdcxx-v3 to turn
> on the new library and namespace std, but not the new C++ ABI.

Thanks Phil; I've started with teh gcc-20001030 snapshot.  It is kind of
getting there but not all the way - here is what I have done:

   1) Opened out the tar
   2) Configured at the top level with --enable-libstdcxx-v3
   3) make bootstrap
 
      It built gcc, but hasn't build libstdcxx-v3
   3a) make install'd gcc
   4) cd'd into libstdcxx-v3, configured
      This tried to look for a configure.host in the wrong place (or at
least somewhere it didn't exist!).  I changed glibcpp_basedir to be
"${srcdir}/." - which was one of the entries in its if's
  5) made - all OK
  6) Make install - it hits problems trying to copy stuff out of
include/bits, include/ext etc - it appears to be wanting to see them as
src/bits/..... - so I put a symlink in.
  7) It couldn't find the std_c* files during the install; so I've copied
the ones from include/c/bits

Things seem to be getting there.  The problem I'm hitting is that cout and
its friends are now properly in the std namespace; so I've got a 'using
namespace std' in my code (we had that on our MS Windows code); but am now
hit by an error indicating that:

 call of overloaded `isprint (char&)' is ambiguous
/usr/include/ctype.h:97: candidates are: int isprint(int)
/usr/local/gcc-20001030/include/g++-v3/bits/std_cctype.h:95:                 
   int std::isprint(int)

Now to me it looks like std_cctype.h is including the system ctype.h
header,; but to me there seems to be quite a lot of magic in there
(presumably to work round this?).

Dave

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