[FYI] Merge branch 'maint' into master

[Stefano Lattarini]

commit 1e8526488f16c127e89ccd8be0df1bd33076c351
Merge: a124188 33f4f7d
Author: Stefano Lattarini <address@hidden>
Date:   Fri May 4 17:46:51 2012 +0200

    Merge branch 'maint'

    * maint:
      tests: avoid spurious failure on missing Obj C/C++ compiler
      objc, objc++: test support for compilation flags
      objc, objc++: add stress test
      objc, objc++: test automatic dependency tracking
      objc: reorganize basic tests
      objc++, objc: add first semantic tests
      objc++: add first basic test
      news: announce initial support for Objective C++
      objc++: test support for '.mm' suffix in _SOURCES entries
      objc++: add documentation
      objc++: initial support for Objective C++