Merged update from upstream sources

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Source: https://src.fedoraproject.org/rpms/xapian-core.git#485f7d4453aca3b7cf84c7ee7f4a313cd9ef1ce4

xapian-core.spec

@@ -1,12 +1,13 @@
 Name:          xapian-core
 Version:       1.4.17
-Release:       2%{?dist}
+Release:       3%{?dist}
 Summary:       The Xapian Probabilistic Information Retrieval Library
 License:       GPLv2+
 URL:           http://www.xapian.org/
 Source0:       http://www.oligarchy.co.uk/xapian/%{version}/%{name}-%{version}.tar.xz
 Patch0:        %{name}-gcc11.patch
 
+BuildRequires: make
 BuildRequires: gcc gcc-c++
 BuildRequires: libuuid-devel
 BuildRequires: zlib-devel
@@ -103,6 +104,9 @@ rm -rf %{buildroot}%{_datadir}/doc/%{name}
 %{_mandir}/man1/xapian-config.1*
 
 %changelog
+* Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 1.4.17-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Sat Oct 17 2020 Jeff Law <law@redhat.com> - 1.4.17-2
 - Fix missing #include for gcc-11