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

[jakub at gcc dot gnu.org]

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

--- Comment #18 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-09-03 09:48:17 UTC ---
If it is exported from the library, then it surely can't depend on configure
checks and must have a fallback in that case (/dev/random reading?).
Inlines that aren't exported from the library could be configure option
dependent.