From 19cd857470e3a46a3d8e06d84c0728a08061646f Mon Sep 17 00:00:00 2001
From: Kazu Yamamoto <kazu@iij.ad.jp>
Date: Tue, 6 Apr 2010 18:49:38 +0900
Subject: GHC version check.

---
 dns.cabal | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/dns.cabal b/dns.cabal
index 34a2a61..99f3459 100644
--- a/dns.cabal
+++ b/dns.cabal
@@ -13,7 +13,10 @@ Category:               Network
 Cabal-Version:          >= 1.6
 Build-Type:             Simple
 library
-  GHC-Options:          -Wall -fno-warn-unused-do-bind
+  if impl(ghc >= 6.12)
+    GHC-Options:        -Wall -O2 -fno-warn-unused-do-bind
+  else
+    GHC-Options:        -Wall -O2
   Exposed-Modules:      Network.DNS
                         Network.DNS.Lookup
                         Network.DNS.Resolver
@@ -22,7 +25,7 @@ library
                         Network.DNS.StateBinary
                         Network.DNS.Query
                         Network.DNS.Response
-  Build-Depends:        base == 4.2.*, haskell98,
+  Build-Depends:        base >= 4 && < 5, haskell98,
                         binary, iproute,
                         containers, mtl, bytestring,
                         network, network-bytestring
-- 
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