make spec more backward compatible

kea.spec

@@ -5,7 +5,7 @@
 Summary:  DHCPv4, DHCPv6 and DDNS server from ISC
 Name:     kea
 Version:  1.5.0
-Release:  %{BETAVER}.1%{?dist}
+Release:  %{BETAVER}.2%{?dist}
 License:  MPLv2.0 and Boost
 URL:      http://kea.isc.org
 Source0:  http://ftp.isc.org/isc/kea/%{version}/kea-%{version}-%{BETAVER}.tar.gz
@@ -22,10 +22,17 @@ BuildRequires: gcc-c++
 # %%configure --with-openssl
 BuildRequires: openssl-devel
 # %%configure --with-dhcp-mysql
+%if 0%{?fedora} || 0%{?rhel} > 7
 BuildRequires: mariadb-connector-c-devel
 # TODO: propose upstream fix so this is not needed (no server-side related
 # headers nor configuration should be needed)
 BuildRequires: postgresql-server-devel
+%else
+# %%configure --with-dhcp-mysql
+BuildRequires: mariadb-devel
+# %%configure --with-dhcp-pgsql
+BuildRequires: postgresql-devel
+%endif
 BuildRequires: log4cplus-devel
 %ifnarch s390 %{mips}
 BuildRequires: valgrind-devel
@@ -122,7 +129,7 @@ make %{?_smp_mflags}
 #make check
 
 %install
-make DESTDIR=%{buildroot} install %{?_smp_mflags}
+make DESTDIR=%{buildroot} install %{?_smp_mflags}  docdir=%{_pkgdocdir}
 
 # Get rid of .la files
 find %{buildroot} -type f -name "*.la" -delete -print
@@ -222,6 +229,9 @@ EOF
 %{_libdir}/pkgconfig/dns++.pc
 
 %changelog
+* Tue Dec 11 2018 Pavel Zhukov <pzhukov@redhat.com> - 1.5.0-beta2.2%{?dist}
+- Do not require -connectors on RHEL
+
 * Tue Dec  4 2018 Pavel Zhukov <pzhukov@redhat.com> - 1.5.0-beta2.1%{?dist}
 - update to beta2