[OpenImageIO] Update cmake conditionals for epel7.

[Richard Shaw]

commit fee5a3bd2e4528fa1571685b4ba7b0ec462879ed
Author: Richard M. Shaw <hobbes1069 at gmail.com>
Date:   Tue May 20 13:42:30 2014 -0500

    Update cmake conditionals for epel7.

 OpenImageIO.spec |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/OpenImageIO.spec b/OpenImageIO.spec
index 65d8252..69f816d 100644
--- a/OpenImageIO.spec
+++ b/OpenImageIO.spec
@@ -1,4 +1,4 @@
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} <= 6
 %global cmake %cmake28
 %endif
 
@@ -20,7 +20,7 @@ Patch1:         oiio-ppc.patch
 Patch2:         oiio-s390.patch
 Patch3:         oiio-cmake.patch
 
-%if 0%{?rhel}
+%if 0%{?rhel} && 0%{?rhel} <= 6
 BuildRequires:  cmake28
 %else
 BuildRequires:  cmake