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| author | Ben Gamari <bgamari.foss@gmail.com> | 2018-04-23 10:40:34 -0400 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-04-24 09:55:01 -0400 |
| commit | e7322107d3647e5d3097eeca878e036b1c98557b (patch) | |
| tree | 0e0509964ab78bcedd01ab91d486ad9082e23abb /MAKEHELP.md | |
| parent | f04ac4d4d0811f48c68fecacefb262039ee33239 (diff) | |
| download | haskell-e7322107d3647e5d3097eeca878e036b1c98557b.tar.gz | |
ghc-prim: Refactor and document __sync_fetch_and_nand workaround
ed6f9fb9d5a684d2159c29633159c3254cf04deb reduced the scope of this hack
to only include Clangs which actually lack __sync_fetch_and_nand.
However, this causes GHC to fail to build with -Werror on Clang due to
the lack of the -Wsync-nand warning flag. As it turns out a flag
controlling the warning is available under a different name, however.
Test Plan: Validate with Clang, GCC
Subscribers: thomie, carter
GHC Trac Issues: #9678
Differential Revision: https://phabricator.haskell.org/D4613
Diffstat (limited to 'MAKEHELP.md')
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