diff --git a/systemd.spec b/systemd.spec
index 3b8e12faf72084f070ea5ebd22e995b2e656c3ec..3ed2ec5858bf9afb2e8a7c43a4cacef2a813cff5 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -25,7 +25,7 @@
 Name:           systemd
 Url:            https://www.freedesktop.org/wiki/Software/systemd
 Version:        255
-Release:        6
+Release:        7
 License:        MIT and LGPLv2+ and GPLv2+
 Summary:        System and Service Manager
 
@@ -302,7 +302,9 @@ Systemd PAM module registers the session with systemd-logind.
 %endif
 
 %build
-
+%if "%{?toolchain}" == "clang"
+    CFLAGS="${CFLAGS:-%{?build_cflags}} -Wno-error=incompatible-pointer-types-discards-qualifiers"; export CFLAGS;
+%endif
 CONFIGURE_OPTS=(
         -Dsysvinit-path=/etc/rc.d/init.d
         -Drc-local=/etc/rc.d/rc.local
@@ -1635,6 +1637,12 @@ fi
 %{_libdir}/security/pam_systemd_loadkey.so
 
 %changelog
+* Mon Mar 18 2024 luofeng <luofeng13@huawei.com> - 255-7
+- Type:enhencement
+- CVE:NA
+- SUG:NA        
+- DESC:support clang build
+
 * Mon Mar 18 2024 huyubiao <huyubiao@huawei.com> - 255-6
 - switch systemd back to cgroup v1 to prevent the docker.service startup failure