!16 [sync] PR-14: support specify cc

From: @openeuler-sync-bot 
Reviewed-by: @sunsuwan 
Signed-off-by: @sunsuwan

ipvsadm.spec

@@ -1,6 +1,6 @@
 Name:             ipvsadm
 Version:          1.31
-Release:          5
+Release:          6
 Summary:          A utility to administer the IP virtual server services
 License:          GPLv2+
 URL:              https://kernel.org/pub/linux/utils/kernel/ipvsadm/
@@ -26,7 +26,11 @@ offered by the Linux kernel with IP virtual server support.
 
 %build
 %set_build_flags
-make
+%if "%{?toolchain}" == "clang"
+  %global make_opts CC=clang CXX=clang++
+%endif
+
+make %{?make_opts}
 
 %install
 rm -rf %{buildroot}
@@ -56,6 +60,12 @@ install -p -D -m 0600 %{SOURCE2} %{buildroot}%{_sysconfdir}/sysconfig/%{name}-co
 %{_mandir}/man8/*8*
 
 %changelog
+* Fri Apr 14 2023 jammyjellyfish <jammyjellyfish255@outlook.com> - 1.31-6
+- Type: requirement
+- ID: NA
+- SUG: NA
+- DESC: Support specify CC
+
 * Fri Apr 22 2022 kwb0523 <kwb0523@163.com> - 1.31-5
 - Type: requirement
 - ID: NA