Fix FTBFS bug #1604377 by adding BuildRequires: gcc

iperf3.spec

@@ -1,6 +1,6 @@
 Name:           iperf3
 Version:        3.6
-Release:        2%{?dist}
+Release:        3%{?dist}
 Summary:        Measurement tool for TCP/UDP bandwidth performance
 
 Group:          Applications/Internet
@@ -8,6 +8,7 @@ License:        BSD
 URL:            http://github.com/esnet/iperf
 Source0:        http://downloads.es.net/pub/iperf/iperf-%{version}.tar.gz
 BuildRequires:  libuuid-devel
+BuildRequires:  gcc
 
 %description
 Iperf is a tool to measure maximum TCP bandwidth, allowing the tuning of
@@ -50,6 +51,9 @@ rm -f %{buildroot}%{_libdir}/libiperf.la
 %{_libdir}/*.so
 
 %changelog
+* Fri Jul 20 2018 Kevin Fenzi <kevin@scrye.com> - 3.6-3
+- Fix FTBFS bug #1604377 by adding BuildRequires: gcc
+
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 3.6-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild