dev-haskell/atomic-primops
A safe approach to CAS and other atomic ops in Haskell
USE Flags
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
doc
Global: Adds extra documentation (API, Javadoc, etc)
hscolour
* This flag is undocumented *
profile
Global: Adds support for software performance analysis (will likely vary from ebuild to ebuild)
hoogle
* This flag is undocumented *