diff --git a/linuxptp.spec b/linuxptp.spec
index 24606d0a214fa9fe0b674ebc1e34fa14e5ba0713..1bedd2ddd8992b6d2441aca949ab5f494f328605 100644
--- a/linuxptp.spec
+++ b/linuxptp.spec
@@ -1,6 +1,6 @@
 Name:		linuxptp
 Version:	4.2
-Release:        1
+Release:        2
 Summary:	Linuxptp is an implementation of the Precision Time Protocol (PTP)
 Group:		System Environment/Base
 License:	GPLv2+
@@ -34,7 +34,11 @@ Help files for %{name}
 %autosetup -n %{name}-%{version}
 
 %build
-%make_build EXTRA_CFLAGS="$RPM_OPT_FLAGS" \
+%if "%{?toolchain}" == "clang"
+  %global make_opts CC=clang CXX=clang++
+%endif
+
+%make_build %{?make_opts} EXTRA_CFLAGS="$RPM_OPT_FLAGS" \
 	    EXTRA_LDFLAGS="$RPM_LD_FLAGS"
 
 
@@ -81,6 +85,9 @@ echo 'OPTIONS="-a -r"' > %{buildroot}%{_sysconfdir}/sysconfig/phc2sys
 %{_mandir}/man8/*.8*
 
 %changelog
+* Thu Jan 09 2025 Suyun <ziyu.oerv@isrc.iscas.ac.cn> - 4.2-2
+- Support for building with Clang
+
 * Mon Aug 05 2024 Ge Wang <wang__ge@126.com> - 4.2-1
 - Update to 4.2 version