!18 添加gcc依赖, 解决gcc command not found.

From: @shine_
Reviewed-by: @hht8,@small_leek
Signed-off-by: @small_leek

openvpn.spec

@@ -1,13 +1,13 @@
 Name: openvpn
 Version: 2.4.8
-Release: 5
+Release: 6
 Summary: A full-featured open source SSL VPN solution
 License: GPLv2 and OpenSSL and SSLeay
 URL: https://community.openvpn.net/openvpn
 Source0: https://swupdate.openvpn.org/community/releases/openvpn-%{version}.tar.gz
 Patch0000:     CVE-2020-11810.patch
 Patch0001:     CVE-2020-15078.patch
-BuildRequires: openssl-devel lz4-devel systemd-devel lzo-devel
+BuildRequires: openssl-devel lz4-devel systemd-devel lzo-devel gcc
 BuildRequires: iproute pam-devel pkcs11-helper-devel >= 1.11
 
 Requires: iproute
@@ -123,6 +123,9 @@ fi
 %{_mandir}/man8/%{name}.8*
 
 %changelog
+* Wed Jun 9 2021 zhaoyao <zhaoyao32@huawei.com> - 2.4.8-6
+- fix faileds: /bin/sh: gcc: command not found.
+
 * Tue May 25 2021 wangyue <wangyue92@huawei.com> - 2.4.8-5
 - fix CVE-2020-15078