Arch Linux

Thread-using code built with current ghc's non-threaded runtime spins.

Description:
XMonad is coming up top on powertop. After some investigation it seems to be a ghc bug. The report does suggest to rebuild XMonad with different compiler switches, i.e.
"If we're going to ship this GHC, then this bug should at least be cloned
to xmonad and it made to build with -threaded. That seems to work well
for me."

Additional info:
[edward@dexter ~]$ xmonad --version
xmonad 0.10
[edward@dexter ~]$ ghc -v
Glasgow Haskell Compiler, Version 7.4.2, stage 2 booted by GHC version 7.4.1
Using binary package database: /usr/lib/ghc-7.4.2/package.conf.d/package.cache
wired-in package ghc-prim mapped to ghc-prim-0.2.0.0-7d3c2c69a5e8257a04b2c679c40e2fa7
wired-in package integer-gmp mapped to integer-gmp-0.4.0.0-af3a28fdc4138858e0c7c5ecc2a64f43
wired-in package base mapped to base-4.5.1.0-6e4c9bdc36eeb9121f27ccbbcb62e3f3
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.7.0.0-2bd128e15c2d50997ec26a1eaf8b23bf
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc static flags: -static
*** Deleting temp files:
Deleting:
*** Deleting temp dirs:
Deleting:
ghc: no input files
Usage: For basic information, try the `--help' option.


Background:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=677096