Prepare devel subpackage installable multiple times

Only bind-dyndb-ldap uses devel package. Move includes and libraries to
contain major version. That should allow to install both bind9.18-devel
and bind9.20-devel at the same time. Needed to build multiple
bind-dyndb-ldap plugin versions for different variants.

bind.spec

@@ -47,7 +47,6 @@
 
 %global forgeurl0 https://gitlab.isc.org/isc-projects/bind9
 
-
 %define major_ver() %{lua: \
   local ver = rpm.expand("%{1}"); \
   local s, e; \
@@ -57,6 +56,7 @@
   end; \
 }
 
+
 # libisc-nosym requires to be linked with unresolved symbols
 # When libisc-nosym linking is fixed, it can be defined to 1
 # Visit https://bugzilla.redhat.com/show_bug.cgi?id=1540300
@@ -616,8 +616,8 @@ touch ${RPM_BUILD_ROOT}/%{chroot_prefix}%{_sysconfdir}/named.conf
 #end chroot
 
 %make_install PROGRAM_SUFFIX="%{program_suffix}"
-mkdir -p ${RPM_BUILD_ROOT}%{_includedir}/bind9/bind9
-sed -e 's/PACKAGE_/BIND9_/' config.h > ${RPM_BUILD_ROOT}%{_includedir}/bind9/bind9/config.h
+mkdir -p ${RPM_BUILD_ROOT}%{bind_include}/bind9
+sed -e 's/PACKAGE_/BIND9_/' config.h > ${RPM_BUILD_ROOT}%{bind_include}/bind9/config.h
 
 # Remove unwanted files
 rm -f ${RPM_BUILD_ROOT}/etc/bind.keys