Add only extra flags to default RPM LDFLAGS

ldns.spec

@@ -30,7 +30,7 @@
 Summary: Low-level DNS(SEC) library with API
 Name: ldns
 Version: 1.7.0
-Release: 13%{?dist}
+Release: 14%{?dist}
 
 License: BSD
 Url: http://www.nlnetlabs.nl/%{name}/
@@ -179,10 +179,9 @@ cp -a %{pkgname}_python2 %{pkgname}_python3
 %build
 CFLAGS="%{optflags} -fPIC"
 CXXFLAGS="%{optflags} -fPIC"
-LDFLAGS="-Wl,-z,relro,-z,now -pie"
+LDFLAGS="$RPM_LD_FLAGS -Wl,-z,now -pie"
 export CFLAGS CXXFLAGS LDFLAGS
 
-
 %if %{with_gost}
   %global enable_gost --enable-gost
 %else
@@ -342,6 +341,9 @@ rm -rf doc/man
 %doc doc
 
 %changelog
+* Wed Feb 21 2018 Petr Menšík <pemensik@redhat.com> - 1.7.0-14
+- Add only extra flags to default RPM LDFLAGS
+
 * Wed Feb 21 2018 Petr Menšík <pemensik@redhat.com> - 1.7.0-13
 - Support for python3 package (#1323248)
 - Moved perl manual pages to perl-ldns