Merged update from upstream sources

This is an automated DistroBaker update from upstream sources.
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Source: https://src.fedoraproject.org/rpms/libevent.git#5cfc2f9843ac999c473fcacbdc5690b21124bcea

libevent.spec

@@ -2,7 +2,7 @@
 
 Name:           libevent
 Version:        2.1.12
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Abstract asynchronous event notification library
 
 # arc4random.c, which is used in build, is ISC. The rest is BSD.
@@ -10,6 +10,7 @@ License:        BSD and ISC
 URL:            http://libevent.org/
 Source0:        https://github.com/libevent/libevent/releases/download/release-%{version}-stable/libevent-%{version}-stable.tar.gz
 
+BuildRequires: make
 BuildRequires:  gcc
 # Needed for ./autogen.sh:
 BuildRequires:  automake libtool
@@ -147,6 +148,9 @@ mkdir -p $RPM_BUILD_ROOT/%{develdocdir}/sample
 %doc %{develdocdir}/
 
 %changelog
+* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.12-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
+
 * Tue Sep 29 2020 Ondřej Lysoněk <olysonek@redhat.com> - 2.1.12-2
 - Temporarily revert a problematic upstream change