clang++ uses older g++ library

[Joe Wood]

Ubuntu 12.10

clang:
  Installed: 3.0-6ubuntu3

gcc:
  Installed: 4:4.7.2-1ubuntu2
g++:
  Installed: 4:4.7.2-1ubuntu2

The following invocation of clang fails to find the 4.7 g++ standard libraries and instead uses the 4.6 libraries:

$ clang++ -std=c++11 -pthread threads.cpp

result:
In file included from threads.cpp:1:
/usr/include/c++/4.6/chrono:666:7: error: static_assert expression is
      not an integral constant expression
      static_assert(system_clock::duration::min()
      ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1 error generated.

It should be looking in the 4.7 include lib. I believe that this is a known fault with g++ 4.6.

[Launchpad Janitor (janitor)]

This bug was fixed in the package clang - 3.2~rc3-1~exp3ubuntu2

---------------
clang (3.2~rc3-1~exp3ubuntu2) raring; urgency=low

  * Build-depend on python.
 -- Matthias Klose <email address hidden> Thu, 20 Dec 2012 15:09:28 +0100