From b465bbffb9d15dd76cd9d0c46e098ee60ace4f20 Mon Sep 17 00:00:00 2001
From: Jose Antonio Ortega Ruiz <jao@gnu.org>
Date: Mon, 4 Jun 2012 02:37:26 +0200
Subject: Added --with_threaded configuration flag

Fixes #36
---
 xmobar.cabal | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'xmobar.cabal')

diff --git a/xmobar.cabal b/xmobar.cabal
index e80e8b3..db935f7 100644
--- a/xmobar.cabal
+++ b/xmobar.cabal
@@ -65,6 +65,10 @@ flag with_mpris
   description: MPRIS v1, v2 support
   default: False
 
+flag with_threaded
+  description: Use threaded runtime
+  default: False
+
 executable xmobar
     hs-source-dirs:     src
     main-is:            Main.hs
@@ -89,9 +93,12 @@ executable xmobar
        ghc-options: -funbox-strict-fields -Wall
        extra-libraries: Xrandr
 
-    -- Use --disable-optimization configure flag
-    -- if impl (ghc == 6.10.1) && arch (x86_64)
-    --    ghc-options: -O0
+    if flag(with_threaded)
+       -- -threaded is a workaround 100% CPU busy loop
+       -- (http://hackage.haskell.org/trac/ghc/ticket/4934)
+       -- See also comments in https://github.com/jaor/xmobar/pull/36
+       ghc-options: -threaded
+       cpp-options: -DTHREADED_RUNTIME
 
     if impl (ghc >= 6.12.1)
        ghc-options: -fno-warn-unused-do-bind
-- 
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