!20 Upgrade to texlive 2021

From: @misaka00251 
Reviewed-by: @overweight 
Signed-off-by: @overweight

texinfo.spec

@@ -4,7 +4,7 @@
 
 Name: texinfo
 Version: 6.8
-Release: 3
+Release: 4
 Summary: The GNU Documentation System
 License: GPLv3+
 Url: http://www.gnu.org/software/texinfo/
@@ -20,6 +20,7 @@ Patch0006: texinfo-6.8-undo-gnulib-nonnul.patch
 
 BuildRequires: gcc perl-generators zlib-devel ncurses-devel help2man
 BuildRequires: perl(Data::Dumper) perl(Locale::Messages) perl(Unicode::EastAsianWidth) perl(Text::Unidecode) perl(Storable) perl(Unicode::Normalize)
+BuildRequires: perl(File::Copy)
 
 %description
 Texinfo is a documentation system that uses a single source file to produce
@@ -33,8 +34,8 @@ and (using TeX) DVI format. It includes the makeinfo program.
 Summary: Tools for formatting Texinfo documents
 Requires: texinfo = %{version}-%{release} tex(tex) tex(epsf.tex)
 %ifnarch i686
-Requires(post): texlive-tetex
-Requires(postun): texlive-tetex
+Requires(post): %{_bindir}/texconfig-sys
+Requires(postun): %{_bindir}/texconfig-sys
 %endif
 Provides: tex-texinfo = %{version}-%{release}
 Obsoletes: tex-texinfo < %{version}-%{release}
@@ -136,6 +137,9 @@ export ALL_TESTS=yes
 %{_mandir}/man5/texinfo.5*
 
 %changelog
+* Wed Oct 26 2022 misaka00251 <liuxin@iscas.ac.cn> - 6.8-4
+- Upgrade texlive version to 2021
+
 * Sat Feb 19 2022 yangcheng <yangcheng87@h-partners.com> - 6.8-3
 - add i686 options,fix build failure on i686