[python-gencpp/el6: 2/2] Use cmake28 for rhel

[rmattes]

commit 82afea0ea1eacc4137c10fc8fbed96ab8f716080
Author: Rich Mattes <richmattes at gmail.com>
Date:   Sun Jul 21 13:10:16 2013 -0400

    Use cmake28 for rhel

 python-gencpp.spec |   11 ++++++++++-
 1 files changed, 10 insertions(+), 1 deletions(-)
---
diff --git a/python-gencpp.spec b/python-gencpp.spec
index 01ef1c6..0a6eea2 100644
--- a/python-gencpp.spec
+++ b/python-gencpp.spec
@@ -14,7 +14,11 @@ Source0:        https://github.com/ros/%{stackname}/archive/%{commit}/%{stacknam
 Patch0:         ros-%{stackname}-langs.patch
 BuildArch:      noarch
 
+if 0%{?rhel}
+BuildRequires:  cmake28
+%else
 BuildRequires:  cmake
+%endif
 BuildRequires:  python-setuptools
 BuildRequires:  catkin-devel
 BuildRequires:  python-genmsg-devel
@@ -39,7 +43,12 @@ Requires: python-genmsg-devel
 %build
 mkdir build
 pushd build
-%cmake -DSETUPTOOLS_DEB_LAYOUT=OFF ..
+%if 0%{?rhel}
+%cmake28 \
+%else
+%cmake \
+%endif
+  -DSETUPTOOLS_DEB_LAYOUT=OFF ..
 popd
 
 %install