[LLVMdev] clang++ include problems

[Vania Joloboff]

Hello

It looks like Ubuntu 13.04 has changed the include files directories 
structure
Now we get the following error in many of our programs
that compile fine on Ubuntu 12.04

> clang++ -c -x c++ -emit-llvm 
> ../../libsimsoc/processors/ppc/ppc_llvm_lib.cpp -DNDEBUG 
> -I/home/vania/systemc-2.3.0/include -I/home/vania/tlm2.0/include/tlm 
> -DSC_INCLUDE_DYNAMIC_PROCESSES -I/usr/local/llvm/3.2/include  -DNDEBUG 
> -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS 
> -D__STDC_LIMIT_MACROS -I../.. -I.. 
> -DABS_TOP_SRCDIR="\"/home/vania/simsoc/trunk/build/..\"" 
> -DABS_TOP_BUILDDIR="\"/home/vania/simsoc/trunk/build\"" 
> -DBINDIR="\"/usr/local/bin\"" -I ../libsimsoc -DNDEBUG -O3 -o 
> ppc_llvm_lib.bc
> In file included from ../../libsimsoc/processors/ppc/ppc_llvm_lib.cpp:7:
> In file included from ../../libsimsoc/bitwise_operator.hpp:11:
> In file included from 
> /usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../include/c++/4.7/vector:60:
> /usr/lib/gcc/x86_64-linux-gnu/4.7/../../../../include/c++/4.7/bits/stl_algobase.h:60:10: 
> fatal error:
>       'bits/c++config.h' file not found
> #include <bits/c++config.h>
>          ^
> 1 error generated.

It happens systematically when including a header file from STL (in this 
case vector)
that includes <bits/c++config.h>
It may be a problem more related to Ubuntu 13, but it seems a general
change in Linux architecture dependent includes.
They have migrated architecture dependent files from

    /usr/include/c++/
to
   /usr/include/$ARCHITECTURE/c++

In my case ARCHITECTURE=x86_64-linux-gnu


Is this something we have to definitely deal with in our configure script
or we can expect a clang++ change ?

--VJ