diff --git a/0001-add-compile-option.patch b/0001-add-compile-option.patch
new file mode 100644
index 0000000..9c8d3fd
--- /dev/null
+++ b/0001-add-compile-option.patch
@@ -0,0 +1,25 @@
+From b67c8c1b249046b92966b0ad7768c07cbad59445 Mon Sep 17 00:00:00 2001
+From: zhangchao13 <chaozhangm@isoftstone.com>
+Date: Thu, 6 Apr 2023 14:48:07 +0800
+Subject: [PATCH] fix
+
+---
+ configure | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/configure b/configure
+index 5cf4e08..b8566dd 100644
+--- a/configure
++++ b/configure
+@@ -42,7 +42,7 @@ OSNAME=
+ UTF8_LOCALE=
+ 
+ AR=ar
+-CC=cc
++CC=$CC
+ CFLAGS=
+ FATAL=0
+ LDADD=
+-- 
+2.39.2.windows.1
+
diff --git a/mandoc.spec b/mandoc.spec
index a63bca7..7f29857 100644
--- a/mandoc.spec
+++ b/mandoc.spec
@@ -1,14 +1,16 @@
 Name:             mandoc
 Version:          1.14.6
-Release:          1
+Release:          2
 Summary:          A suite of tools for compiling mdoc and man
 
 License:          ISC
 URL:              https://mandoc.bsd.lv/
 Source0:          https://mandoc.bsd.lv/snapshots/mandoc-%{version}.tar.gz
+Patch0:           0001-add-compile-option.patch
 
 BuildRequires:    gcc
 BuildRequires:    make
+BuildRequires:    clang
 BuildRequires:    zlib-devel
 
 # requirements for %%check
@@ -69,6 +71,7 @@ echo 'INSTALL_DATA="${INSTALL} -m 0644"'    >> configure.local
 echo 'INSTALL_LIBMANDOC=1' >> configure.local
 
 echo 'CFLAGS="%{optflags} -fPIC"' >> configure.local
+export CC=clang
 ./configure
 %make_build
 
@@ -217,6 +220,8 @@ fi
 %{_mandir}/man3/tbl.3*
 
 %changelog
+* Thu Apr 6 2023 changzhangm <chaozhangm@isoftstone.com> - 1.14.6-2
+- Update to 1.14.6-2
 * Fri Sep 23 2022 chendexi <chendexi@kylinos.cn> - 1.14.6-1
 - Initial package