diff --git a/xsd.spec b/xsd.spec
index b5f238a9f8bf7e864b8bb9d926ccfd80eca4baa1..8d00cfaf4682457ccd524e1e9e62e1ed3ea272c5 100644
--- a/xsd.spec
+++ b/xsd.spec
@@ -1,6 +1,6 @@
 Name: xsd
 Version: 4.1.0
-Release: 1
+Release: 2
 Summary: W3C XML schema to C++ data binding compiler
 # Exceptions permit otherwise GPLv2 incompatible combination with ASL 2.0
 License: GPLv2 with exceptions and ASL 2.0 
@@ -51,7 +51,11 @@ rm -rf libcutl
 %if 0%{?rhel} < 7
 %{!?__global_ldflags: %global __global_ldflags -Wl,-z,relro}
 %endif
+%if "%toolchain" == "clang"
+%make_build verbose=1 CXXFLAGS="-std=c++14 $RPM_OPT_FLAGS -fPIC -pie -Wl,-z,now" LDFLAGS="%{__global_ldflags} -fPIC -pie -Wl,-z,now" BOOST_LINK_SYSTEM=y EXTERNAL_LIBCUTL=y
+%else
 %make_build verbose=1 CXX=g++ CC="CC -std=gnu89" CXXFLAGS="-std=c++14 $RPM_OPT_FLAGS -fPIC -pie -Wl,-z,now" LDFLAGS="%{__global_ldflags} -fPIC -pie -Wl,-z,now" BOOST_LINK_SYSTEM=y EXTERNAL_LIBCUTL=y
+%endif
 
 %install
 rm -rf apidocdir
@@ -114,6 +118,9 @@ make -j 1 test EXTERNAL_LIBCUTL=y BOOST_LINK_SYSTEM=y
 %doc apidocdir/*
 
 %changelog
+* Fri Sep 08 2023 yoo <sunyuechi@iscas.ac.cn> - 4.1.0-2
+- support clang build
+
 * Tue Aug 22 2023 wangjunqi <wangjunqi@kylinos.cn> - 4.1.0-1
 - fix build problem in openEuler:23.09:Epol