diff --git a/epstool.spec b/epstool.spec
index 04ae0b09f7f3c36576d8797d00b2b88e33d84836..a13711a3e7bb425fd062aa5656e32a514632aff4 100644
--- a/epstool.spec
+++ b/epstool.spec
@@ -1,6 +1,6 @@
 Name:           epstool
 Version:        3.09
-Release:        1
+Release:        2
 Summary:        A utility to create or extract preview images in EPS files
 License:        GPLv2+
 URL:            http://pages.cs.wisc.edu/~ghost/gsview/epstool.htm
@@ -26,8 +26,11 @@ Features:
 %setup -q
 
 %build
+%if "%toolchain" == "clang"
+    CC=clang
+%endif
 # SMP build doesn't work.
-make
+make CC=$CC
 
 %install
 rm -rf %{buildroot}
@@ -40,6 +43,9 @@ install -D -p -m 644 doc/epstool.1 %{buildroot}%{_mandir}/man1/epstool.1
 %{_mandir}/man1/epstool.1.*
 
 %changelog
+* Thu Jan 23 2025 QiuWenjian <wenjian.oerv@isrc.iscas.ac.cn> - 3.09-2
+- Fix building issues with clang
+
 * Wed Dec 15 2021 jiangxinyu <jiangxinyu@kylinos.cn> - 3.09-1
 - upgrade to 3.09