[LLVMbugs] [Bug 14619] Including stdlib.h in an extern "C" block causes a "declaration conflicts with target of using declaration already in scope"

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=14619

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REOPENED                    |RESOLVED
                 CC|                            |richard-llvm at metafoo.co.uk
         Resolution|                            |DUPLICATE

--- Comment #3 from Richard Smith <richard-llvm at metafoo.co.uk> 2012-12-17 17:48:55 CST ---
17.6.2.2p3: "A translation unit shall include a header only outside of any
external declaration or definition"

Also consider that functions declared in <cstdlib> might actually be intended
to have C++ language linkage (see 17.6.2.3p2), so what you're doing is
fundamentally broken.

There is a compiler bug here, in that we don't build correct redeclaration
chains when a namespace is placed inside a linkage specification -- that's
PR12770.

*** This bug has been marked as a duplicate of bug 12770 ***

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