!45 detach the sub package doxygen-help from doxygen and disable xapian_core_support

From: @zou_lin77 
Reviewed-by: @zhuchunyi 
Signed-off-by: @huangduirong, @zhuchunyi

doxygen.spec

@@ -1,9 +1,9 @@
-%global xapian_core_support ON
+%global xapian_core_support OFF
 %global BuildDir Out
 Name:                doxygen
 Epoch:               1
 Version:             1.9.2
-Release:             3
+Release:             4
 Summary:             A documentation system for C/C++
 License:             GPL+
 Url:                 http://www.doxygen.nl
@@ -36,6 +36,8 @@ BuildRequires:       qt5-qtbase-devel
 Doxywizard is a graphical front-end to read/edit/write doxygen
 configuration files.
 
+%package_help
+
 %prep
 %autosetup -p1
 iconv --from=ISO-8859-1 --to=UTF-8 LANGUAGE.HOWTO > LANGUAGE.HOWTO.new
@@ -78,15 +80,11 @@ desktop-file-install --dir=%{buildroot}%{_datadir}/applications %{SOURCE1}
 make tests -C %{BuildDir}
 
 %files
-%doc LANGUAGE.HOWTO README.md
 %license LICENSE
 %{_bindir}/doxygen
-%{_mandir}/man1/doxygen.1*
 %if "%{xapian_core_support}" == "ON"
 %{_bindir}/{doxyindexer,doxysearch*}
-%{_mandir}/man1/{doxyindexer.1*,doxysearch.1*}
 %endif
-%exclude %{_docdir}/packages
 
 %files doxywizard
 %{_bindir}/doxywizard
@@ -94,7 +92,19 @@ make tests -C %{BuildDir}
 %{_datadir}/applications/doxywizard.desktop
 %{_datadir}/icons/hicolor/*/apps/doxywizard.png
 
+%files help
+%doc LANGUAGE.HOWTO README.md
+%exclude %{_docdir}/packages
+%{_mandir}/man1/doxygen.1*
+%if "%{xapian_core_support}" == "ON"
+%{_mandir}/man1/{doxyindexer.1*,doxysearch.1*}
+%endif
+
 %changelog
+* Sat Mar 12 2022 zoulin<zoulin13@h-partners.com> - 1.9.2-4
+- detach the sub package doxygen-help from doxygen;
+- disable xapian_core_support
+
 * Tue Dec 31 2021 zoulin<zoulin13@huawei.com> - 1.9.2-3
 - Fix bare words are no longer supported