llvm-project/Generic-no-random_device.cmake at 20176bc7dd3f431db4c3d59b51a9f53d52190c82 - llvm-project - Gitea For EOELAB

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Louis Dionne e0d01294bc [libc++] Allow building libc++ on platforms without a random device

Some platforms, like several embedded platforms, do not provide a source
of randomness through a random device. This commit makes it possible to
build and test libc++ for such platforms, i.e. without std::random_device.

Surprisingly, the only functionality that doesn't work on such platforms
is std::random_device itself -- everything else in <random> still works,
one just has to find alternative ways to seed the PRNGs.

2020-10-15 12:20:29 -04:00

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CMake

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set(LIBCXX_ENABLE_RANDOM_DEVICE OFF CACHE BOOL "")