On Sat, Jan 5, 2013 at 3:25 AM, Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > On 5 January 2013 12:14, niXman wrote: >> 2012/12/28 Jonathan Wakely: >>> Do you mean the files are present on the system where GCC is built, >>> but not on the system where compiled programs run? >> Yes, these files are not available not only where executed program >> built with Mingw, but where Mingw used. >> Mingw - native windows program. MSYS - POSIX environment emulator. >> >>> Fixing the test would be better, but if it's not possible to tell >>> whether the files are usable until runtime then no preprocessor test >>> can work. >> For Mingw not need to check '/dev/random' or/and '/dev/urandom' are >> available or not. It would be correct to say that these files are >> always not available. > > In that case a quick fix would be to #undef _GLIBCXX_USE_RANDOM_TR1 in > config/os/mingw32*/os_defines.h Windows has the CryptGenRandom() API to get a random number. Reading \Device\KsecDD directly doesn't work, AFAIK
