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

[tkoenig at gcc dot gnu.org]

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

Thomas Koenig <tkoenig at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |blocker

--- Comment #11 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2012-09-01 19:30:22 UTC ---
Revision 190769 was fine.

It looks like this is the cause:

Author: drepper
Date: Wed Aug 29 22:05:41 2012
New Revision: 190787

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190787
Log:

    * include/bits/random.h (random_device): Move implementation to...
    * src/c++11/random.cc: ...here.  New file.
    * config/abi/pre/gnu.ver: Add new version GLIBCXX_3.4.18.  Export
    std::random_device::* symbols.
    * config/abi/post/x86_64-linux-gnu/baseline_symbols.txt: Generated.
    * src/c++11/Makefile.am (sources): Add random.cc.
    * src/c++11/Makefile.in: Regenerated.


Added:
    trunk/libstdc++-v3/src/c++11/random.cc
Modified:
    trunk/libstdc++-v3/config/abi/post/x86_64-linux-gnu/baseline_symbols.txt
    trunk/libstdc++-v3/config/abi/pre/gnu.ver
    trunk/libstdc++-v3/include/bits/random.h
    trunk/libstdc++-v3/src/c++11/Makefile.am
    trunk/libstdc++-v3/src/c++11/Makefile.in