Bug#694595: gcc-4.7: Starting with 4.7.2-10 breaks building LLVM/Clang Trunk

["Marc J. Driftmeyer" <mjd@reanimality.com>]

Package: gcc-4.7
Version: 4.7.2-12
Severity: normal

Dear Maintainer,

Starting with 4.7.2-10 breaks building LLVM/Clang Trunk.

Building LLVM/Clang whether with a previous trunk build clang or using gcc to build clang now stands broken for the simple fact:

In file included from /home/mdriftmeyer/DeveloperProjects/LLVMProject/trunk/llvm/projects/compiler-rt/lib/asan/tests/asan_benchmarks_test.cc:15:
In file included from /home/mdriftmeyer/DeveloperProjects/LLVMProject/trunk/llvm/projects/compiler-rt/lib/asan/tests/asan_test_utils.h:19:
In file included from /home/mdriftmeyer/DeveloperProjects/LLVMProject/trunk/llvm/projects/compiler-rt/lib/asan/tests/asan_test_config.h:20:
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>
         ^
In file included from /home/mdriftmeyer/DeveloperProjects/LLVMProject/trunk/llvm/projects/compiler-rt/lib/asan/tests/asan_test.cc:27:


This has been going on since 4.7.2-10 was introduced into Experimental. This breakage has occasionally occured since LLVM 2.9 trunk and I'm just making everyone aware that they need to make some updates either to both Debian's end and LLVM's reference end to the mappings where the project needs to look in Debian for the c++config.h file.

Since c++config.h is managed by gccxml-0.9 perhaps an update to this package can fix it?

/usr/share/gccxml-0.9/GCC/4.7/bits/c++config.h

Sincerely,

Marc J. Driftmeyer

-- System Information:
Debian Release: wheezy/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-rt-amd64 (SMP w/2 CPU cores; PREEMPT)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash

Versions of packages gcc-4.7 depends on:
pn  binutils        <none>
ii  cpp-4.7         4.7.2-12
ii  gcc-4.7-base    4.7.2-12
ii  libc6           2.16-0experimental1
ii  libgcc-4.7-dev  4.7.2-12
ii  libgmp10        2:5.0.5+dfsg-2
ii  libmpc2         0.9-4
ii  libmpfr4        3.1.0-5
ii  zlib1g          1:1.2.7.dfsg-13

Versions of packages gcc-4.7 recommends:
ii  libc6-dev  2.16-0experimental1

Versions of packages gcc-4.7 suggests:
pn  binutils-gold        <none>
pn  gcc-4.7-doc          <none>
ii  gcc-4.7-locales      4.7.2-12
pn  gcc-4.7-multilib     <none>
ii  libcloog-ppl0        0.15.11-4
pn  libgcc1-dbg          <none>
pn  libgomp1-dbg         <none>
pn  libitm1-dbg          <none>
pn  libmudflap0-4.7-dev  <none>
pn  libmudflap0-dbg      <none>
pn  libppl-c2            <none>
pn  libppl7              <none>
pn  libquadmath0-dbg     <none>

-- no debconf information