diff --git a/open-iscsi.spec b/open-iscsi.spec
index 74795297e96ea8cba9c3a4c8297d2bb327584cde..f6c708f668ae3c08c2f8daa036995694b4e87818 100644
--- a/open-iscsi.spec
+++ b/open-iscsi.spec
@@ -4,7 +4,7 @@
 
 Name:    open-iscsi
 Version: 2.1.5
-Release: 14
+Release: 15
 Summary: ISCSI software initiator daemon and utility programs
 License: GPLv2+ and BSD
 URL:     http://www.open-iscsi.com
@@ -89,6 +89,9 @@ This contains man files for the using of %{name}.
 %prep
 %autosetup -n %{name}-%{version} -p1
 perl -i -pe 's|^exec_prefix = /$|exec_prefix = %{_exec_prefix}|' Makefile
+%if "%toolchain" == "clang"
+sed -i '/^WARNFLAGS/{s/$/ -Wno-error=single-bit-bitfield-constant-conversion -Wno-error=gnu-variable-sized-type-not-at-end -Wno-error=ignored-attributes -Wno-error=header-guard/}'  usr/Makefile
+%endif
 
 %build
 %make_build OPTFLAGS="%{optflags} %{?__global_ldflags} -DUSE_KMOD -lkmod" LIB_DIR=%{_libdir}
@@ -163,6 +166,12 @@ fi
 %{_mandir}/man8/*
 
 %changelog
+* Thu Feb 22 2024 r30030392 <renyi43@huawei.com> - 2.1.5-15
+- Type:NA
+- CVE:NA
+- SUG:NA
+- DESC:support for building with clang
+
 * Tue Feb 20 2024 jiangjianjun <jiangjianjun3@huawei.com> - 2.1.5-14
 - update open-iscsi.spec