Disable PDF build on ELN

texlive-xindy is not available on ELN branch, therefore PDF building
would always fail. Skip PDF there.

bind.spec

@@ -23,8 +23,11 @@
 %bcond_without DNSTAP
 %bcond_without LMDB
 %bcond_without DOC
+%if 0%{?fedora}
 # Because of issues with PDF rebuild, include only HTML pages
+# RHEL and ELN do not have all required packages
 %bcond_without DOCPDF
+%endif
 %bcond_with    TSAN
 
 %{?!bind_uid:  %global bind_uid  25}
@@ -55,7 +58,7 @@ Summary:  The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
 Name:     bind
 License:  MPLv2.0
 Version:  9.16.18
-Release:  3%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
+Release:  4%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
 Epoch:    32
 Url:      https://www.isc.org/downloads/bind/
 #
@@ -1129,6 +1132,9 @@ fi;
 %endif
 
 %changelog
+* Sat Jul 10 2021 Petr Menšík <pemensik@redhat.com> - 32:9.16.18-4
+- Disable PDF building on ELN
+
 * Sat Jul 10 2021 Björn Esser <besser82@fedoraproject.org> - 32:9.16.18-3
 - Rebuild for versioned symbols in json-c