From a26ecdb3e3a47a8faa88c5ef17368caf49c42e50 Mon Sep 17 00:00:00 2001
From: Simon Michael <simon@joyful.com>
Date: Mon, 2 Jan 2012 17:42:43 +0000
Subject: [PATCH] true-by-default threaded flag for hledger, allowing
 non-threaded builds on some debian architectures (Clint Adams)

---
 hledger/hledger.cabal | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/hledger/hledger.cabal b/hledger/hledger.cabal
index f26001c77..cdfb52244 100644
--- a/hledger/hledger.cabal
+++ b/hledger/hledger.cabal
@@ -35,6 +35,10 @@ source-repository head
   type:     darcs
   location: http://joyful.com/repos/hledger
 
+flag threaded
+    Description:   Build with support for multithreaded execution
+    Default:       True
+
 library
   -- XXX should set patchlevel here as in Makefile
   cpp-options:    -DPATCHLEVEL=0
@@ -105,8 +109,10 @@ executable hledger
                   Hledger.Cli.Stats
   -- XXX should set patchlevel here as in Makefile
   cpp-options:    -DPATCHLEVEL=0
-  ghc-options:    -threaded -W
-  -- should be the same as above
+  ghc-options:    -W
+  if flag(threaded)
+       ghc-options:   -threaded
+ -- should be the same as above
   build-depends:
                   hledger-lib == 0.17
                  ,base >= 3 && < 5