diff --git a/bugfix-Fix-warning-after-LTO-enabled.patch b/bugfix-Fix-warning-after-LTO-enabled.patch
new file mode 100644
index 0000000000000000000000000000000000000000..90e7a27f27ef3fb4d918596ba04eba73a01a44a4
--- /dev/null
+++ b/bugfix-Fix-warning-after-LTO-enabled.patch
@@ -0,0 +1,31 @@
+From 0dc722ecd4c7afd1ea905ffc75200da32d1bb6fa Mon Sep 17 00:00:00 2001
+From: Chenxi Mao <chenxi.mao@suse.com>
+Date: Tue, 4 Apr 2023 19:40:53 +0800
+Subject: [PATCH 1/1] Fix warning after LTO enabled
+
+[  371s] ../../../texk/web2c/cwebdir/common.h:150:8: warning: type defaults to 'int' in declaration of 'change_depth' [-Wimplicit-int]
+[  371s]   150 | extern change_depth; /* where \.{@@y} originated during a change */
+[  371s]       |        ^~~~~~~~~~~~
+[  371s] make[5]: Leaving directory '/home/abuild/rpmbuild/BUILD/texlive-20180414-source/source/work/texk/web2c'
+
+Signed-off-by: Chenxi Mao <chenxi.mao@suse.com>
+---
+ texlive-20180414-source/texk/web2c/cwebdir/common.h | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/texlive-20180414-source/texk/web2c/cwebdir/common.h b/texlive-20180414-source/texk/web2c/cwebdir/common.h
+index d6c0bfb6..21fe2bb0 100644
+--- a/texlive-20180414-source/texk/web2c/cwebdir/common.h
++++ b/texlive-20180414-source/texk/web2c/cwebdir/common.h
+@@ -147,7 +147,7 @@ extern char file_name[][max_file_name_length];
+ extern char change_file_name[]; /* name of change file */
+ extern line[]; /* number of current line in the stacked files */
+ extern change_line; /* number of current line in change file */
+-extern change_depth; /* where \.{@@y} originated during a change */
++extern int change_depth; /* where \.{@@y} originated during a change */
+ extern boolean input_has_ended; /* if there is no more input */
+ extern boolean changing; /* if the current line is from |change_file| */
+ extern boolean web_file_open; /* if the web file is being read */
+-- 
+2.33.0
+
diff --git a/texlive-base.spec b/texlive-base.spec
index 001ecdb6e5632762a1ea33c3e5899469ffeaa9b7..5a78a5563361fa18e5a65c94feee1a4128409cfd 100644
--- a/texlive-base.spec
+++ b/texlive-base.spec
@@ -4,7 +4,7 @@
 
 Name:           texlive-base
 Version:        20180414
-Release:        33
+Release:        34
 Epoch:          7
 Summary:        TeX formatting system
 License:        ASL 2.0 and LGPL-2.1-only and Zlib and OFL-1.1 and Public Domain and LGPL-2.0-only and GPLv2+ and MPL-1.1 and Libpng and LGPL-3.0-only and BSL-1.0 and GPLv2 and GPLv3 and CPL-1.0 and IJG and MIT and LPPL-1.3c and ICU and psutils
@@ -380,6 +380,7 @@ Patch0005:      texlive-20180414-synctex-version.patch
 Patch0006:      texlive-base-CVE-2018-17407.patch
 Patch0007:      fix-build-error-when-srctopdf-is-ok.patch
 Patch0008:      remove-support-of-poppler.patch
+Patch0009:      bugfix-Fix-warning-after-LTO-enabled.patch
 
 BuildRequires:  xz libXaw-devel libXi-devel ncurses-devel bison flex file perl(Digest::MD5) texinfo gcc-c++
 BuildRequires:  gd-devel freetype-devel libpng-devel zlib-devel
@@ -8108,6 +8109,9 @@ done <<< "$list"
 %doc %{_datadir}/texlive/texmf-dist/doc/latex/yplan/
 
 %changelog
+* Wed Apr 05 2023 Chenxi Mao <chenxi.mao@suse.com> - 20180414-34
+- Fix a warning found by gcc.
+
 * Wed Jan 19 2022 xu_ping <xuping33@huawei.com> - 20180414-33
 - remove useless BuildRequires poppler