build fixes for rpm

mrw-c++.spec.in

@@ -7,11 +7,14 @@ Group: Development/Libraries/C++
 Source0: %{name}-%{version}.tar.gz
 BuildRequires: subversion, automake, autoconf, doxygen, graphviz
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
-%if 0%{?fedora} || 0%{?rhel} || 0%{?rhl} || 0%{?centos} || 0%{?centos_ver}
-BuildRequires: pkgconfig, cppunit-devel, mscgen, redhat-lsb
+%if 0%{?fedora} || 0%{?rhel} || 0%{?rhl} || 0%{?centos} || 0%{?centos_ver} || 0%{?centos_version}
+BuildRequires: pkgconfig, cppunit-devel, redhat-lsb
 %else%if 0%{?suse_version} || 0%{?sles_version}
 BuildRequires: pkg-config, libcppunit-devel, lsb-release
 %endif%endif
+%if 0%{?fedora} || 0%{?rhel} || 0%{?rhl}
+BuildRequires: mscgen
+%endif
 
 %description
 @README@