[Bug gold/14309] gold doesn't build with gcc 4.1.3

[dodji at seketeli dot org]

http://sourceware.org/bugzilla/show_bug.cgi?id=14309

dodji at seketeli dot org changed:

           What    |Removed                     |Added
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                 CC|                            |dodji at seketeli dot org

--- Comment #3 from dodji at seketeli dot org 2012-07-02 19:15:03 UTC ---
I think the problem comes from the fact that libstdc++ in GCC 4.1.2 does not
define a specialization for std::tr1::hash<long long>.

But that specialization is needed when you want to use a 'long long' as a key
type in a std::tr1::unordered_map.

I am attaching a patch that hopefully addresses the issue on platforms that
provide std::tr1::unordered_map but don't provide std::tr1::hash<long long>.

--- Comment #4 from dodji at seketeli dot org 2012-07-02 19:19:35 UTC ---
Created attachment 6507
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6507
Fix the compilation error

Provide the std::tr1::hash<long long> specialization when not available.

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