[gmime] Add %{?rhel} conditional.

[Bill Nottingham]

commit 002d9bb7ebe9e20e8ad89ac76471ef49ee2f0bad
Author: Bill Nottingham <notting at redhat.com>
Date:   Wed Dec 7 17:00:08 2011 -0500

    Add %{?rhel} conditional.

 gmime.spec |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/gmime.spec b/gmime.spec
index d89a96a..9985c00 100644
--- a/gmime.spec
+++ b/gmime.spec
@@ -25,6 +25,9 @@ Patch3: gmime-2.5.8-gpg-error.patch
 %else
 %define buildmono 0
 %endif
+%if 0%{?rhel} >= 6
+%define buildmono 0
+%endif
 
 %if 0%buildmono
 BuildRequires:  mono-devel gtk-sharp2-gapi