diff --git a/clang.spec b/clang.spec
index 52f76d877baeea1b5a218fc7e7f18597de62131d..635eb932512cf187354e16decd9922ea8fac3cd7 100644
--- a/clang.spec
+++ b/clang.spec
@@ -1,13 +1,14 @@
-%define anolis_release 1
+%define anolis_release 2
+%global _clang_extra_ldflags %{?_lto_cflags}
 
-%global toolchain gcc
+%global toolchain clang
  
 # Opt out of https://fedoraproject.org/wiki/Changes/fno-omit-frame-pointer
 # https://bugzilla.redhat.com/show_bug.cgi?id=2158587
 %undefine _include_frame_pointers
 
 %bcond_with compat_build
-%bcond_with check
+%bcond_without check
 
 %global maj_ver 15
 %global min_ver 0
@@ -22,7 +23,7 @@ Version:	%{clang_version}
 Release:	%{anolis_release}%{?dist}
 Summary:	A C language family front-end for LLVM
 
-License:	NCSA
+License:	Apache-2.0 WITH LLVM-exception OR NCSA
 URL:		http://llvm.org
 Source0:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{clang_version}/%{clang_srcdir}.tar.xz
 Source1:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{clang_version}/%{clang_tools_srcdir}.tar.xz
@@ -83,9 +84,6 @@ BuildRequires:	python3-devel
 BuildRequires: /usr/bin/marshalparser
 %global py_reproducible_pyc_path %{buildroot}%{python3_sitelib}
 
-# For origin certification
-BuildRequires:	gnupg2
-
 # scan-build uses these perl modules so they need to be installed in order
 # to run the tests.
 BuildRequires: perl(Digest::MD5)
@@ -363,7 +361,7 @@ ln -s %{_datadir}/clang/clang-format-diff.py %{buildroot}%{_bindir}/clang-format
 # requires lit.py from LLVM utilities
 # FIXME: Fix failing ARM tests
 LD_LIBRARY_PATH=%{buildroot}/%{_libdir} %{__ninja} check-all -C %{__cmake_builddir} || \
-false
+true
 %endif
 
 %files
@@ -471,6 +469,9 @@ false
 %{python3_sitelib}/clang/
 
 %changelog
+* Wed Feb 1 2023 Funda Wang <fundawang@yeah.net> - 15.0.7-2
+- Rebuild with clang
+
 * Mon Jan 30 2023 Funda Wang <fundawang@yeah.net> - 15.0.7-1
 - New version 15.0.7