diff --git a/pngquant.spec b/pngquant.spec
index 1da3c04..54ff275 100644
--- a/pngquant.spec
+++ b/pngquant.spec
@@ -1,12 +1,15 @@
 Name:           pngquant
 Version:        2.18.0
-Release:        1
+Release:        2
 Summary:        PNG quantitative tool for reducing the size of the image file
 License:        GPLv3+
 URL:            http://pngquant.org
 Source0:        https://github.com/pornel/pngquant/archive/%{version}/pngquant-%{version}.tar.gz
 
 BuildRequires:  libpng-devel >= 1.2.46-1 zlib-devel >= 1.2.3-1 lcms2-devel libimagequant-devel >= %{version} gcc
+%if "%{?toolchain}" == "clang"
+BuildRequires:  libomp-devel
+%endif
 Requires:       libpng >= 1.2.46-1 zlib >= 1.2.3-1 libimagequant >= %{version}
 
 %description
@@ -42,6 +45,9 @@ export CFLAGS="%{optflags} -fno-math-errno -funroll-loops -fomit-frame-pointer -
 %{_mandir}/man1/%{name}.1*
 
 %changelog
+* Thu Aug 29 2024 wangqiang <wangqiang1@kylinos.cn> - 2.18.0-2
+- Support build with clang
+
 * Wed Apr 12 2023 liyanan <thistleslyn@163.com> - 2.18.0-1
 - Update to 2.18.0