[hscolour] also need to set ghc_bootstrapping now

[Jens Petersen]

commit 812c7bd5af614b9df183f0ea2a0b22264e84725e
Author: Jens Petersen <petersen at redhat.com>
Date:   Wed Mar 21 21:23:44 2012 +0900

    also need to set ghc_bootstrapping now

 hscolour.spec |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/hscolour.spec b/hscolour.spec
index 8215844..d824e2d 100644
--- a/hscolour.spec
+++ b/hscolour.spec
@@ -6,6 +6,7 @@
 
 # use following to bootstrap after building a new ghc version:
 %{?ghc_bootstrap}
+%global ghc_bootstrapping 1
 %global without_hscolour 1
 
 %global common_summary Haskell %{pkg_name} library