[Bug bootstrap/54419] [4.8 Regression] Compiling libstdc++-v3/src/c++11/random.cc fails on platforms not knowing rdrand

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54419

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
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   Target Milestone|---                         |4.8.0

--- Comment #14 from H.J. Lu <hjl.tools at gmail dot com> 2012-09-02 18:03:01 
UTC ---
libstdc++ should check if rdrand is supported by assembler
before using __builtin_ia32_rdrand32_step.