Link all used libraries to libisc

Library should link all required libraries. Link all used libraries
directly to libisc. Should help with dynamic linking of -lisc alone.

bind-9.16-libisc-link.patch

@@ -0,0 +1,27 @@
+From 5ee0a7ace7588b986f41ac68f51b315fece69094 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
+Date: Wed, 1 Apr 2020 14:28:42 +0200
+Subject: [PATCH] Link all required libraries to libisc
+
+It would fail to link -lisc without additional libraries, which should
+not be required.
+---
+ lib/isc/Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/isc/Makefile.in b/lib/isc/Makefile.in
+index 1b6b4466cd..e9df8d1e17 100644
+--- a/lib/isc/Makefile.in
++++ b/lib/isc/Makefile.in
+@@ -81,7 +81,7 @@ SRCS =		pk11.c pk11_result.c \
+ 		symtab.c task.c taskpool.c timer.c \
+ 		tm.c version.c
+ 
+-LIBS =		${OPENSSL_LIBS} @LIBS@
++LIBS =		${OPENSSL_LIBS} ${JSON_C_LIBS} ${LIBXML2_LIBS} ${ZLIB_LIBS} @LIBS@
+ 
+ # Note: the order of SUBDIRS is important.
+ # Attempt to disable parallel processing.
+-- 
+2.21.1
+

bind.spec

@@ -68,7 +68,7 @@ Summary:  The Berkeley Internet Name Domain (BIND) DNS (Domain Name System) serv
 Name:     bind
 License:  MPLv2.0
 Version:  9.16.1
-Release:  1%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
+Release:  2%{?PATCHVER:.%{PATCHVER}}%{?PREVER:.%{PREVER}}%{?dist}
 Epoch:    32
 Url:      https://www.isc.org/downloads/bind/
 #
@@ -138,6 +138,7 @@ Patch164:bind-9.11-rh1666814.patch
 Patch170:bind-9.11-feature-test-named.patch
 Patch171:bind-9.11-tests-variants.patch
 Patch172:bind-9.11-tests-pkcs11.patch
+Patch173:bind-9.16-libisc-link.patch
 
 # SDB patches
 Patch12: bind-9.10-sdb.patch
@@ -486,6 +487,7 @@ This package provides a module which allows commands to be sent to rndc directly
 %patch170 -p1 -b .featuretest-named
 %patch171 -p1 -b .test-variant
 %patch172 -p1 -b .test-pkcs11
+%patch173 -p1 -b .link-isc
 
 %if %{with PKCS11}
 %patch135 -p1 -b .config-pkcs11
@@ -1373,6 +1375,9 @@ fi;
 
 
 %changelog
+* Wed Apr 01 2020 Petr Menšík <pemensik@redhat.com> - 32:9.16.1-2
+- Link all used libraries to libisc
+
 * Thu Mar 26 2020 Petr Menšík <pemensik@redhat.com> - 32:9.16.1-1
 - Update to 9.16.1