Dear yueqiang,
After some investigations, Chris and I think we know why these warnings
are occuring.
In RedHat Linux 8, the size of struct __locale_struct changed in
/usr/include/xlocale.h. Our LLVM GCC system (including libstdc++.a) was
compiled on a RedHat 7.3 system.
Many of the type conflicts that you are seeing occur because the C++
library thinks that some of the types based upon struct __locale_struct
are different than what your C++ believes them to be.
There are two things that you can do at the moment:
1) If your programs seem to work, just ignore the warnings. I don't
know what sort of problems can arise from this sort of problem, so if
you choose this option, be on the lookout for subtle and obscure bugs in
your compiled program. However, for most cases, this is probably alright.
2) Your other immediate option is to download the LLVM GCC front end
and build it on your system (see
http://llvm.cs.uiuc.edu/docs/CFEBuildInstrs.html for a set of
instructions for building it). If you need help, just email the mailing
list and we'll see what we can do.
Hope this helps.
Regards,
John T. Criswell
--
*********************************************************************
* John T. Criswell Email: criswell at uiuc.edu *
* Research Programmer *
* University of Illinois at Urbana-Champaign *
* *
* "It's today!" said Piglet. "My favorite day," said
Pooh. *
*********************************************************************
