diff --git a/0017-fix-for-missing-DENABLE_AUTOTUNER.patch b/0017-fix-for-missing-DENABLE_AUTOTUNER.patch
new file mode 100644
index 0000000000000000000000000000000000000000..6f5a7e47b9d99e627b9f73920cf738d5f50038cb
--- /dev/null
+++ b/0017-fix-for-missing-DENABLE_AUTOTUNER.patch
@@ -0,0 +1,17 @@
+diff --git a/clang/CMakeLists.txt b/clang/CMakeLists.txt
+index 949f12d3ce8c..98fcb6ea1a07 100644
+--- a/clang/CMakeLists.txt
++++ b/clang/CMakeLists.txt
+@@ -322,6 +322,10 @@ if (BUILD_FOR_OPENEULER)
+   add_definitions( -DBUILD_FOR_OPENEULER )
+ endif()
+ 
++if (LLVM_ENABLE_AUTOTUNER)
++  add_definitions( -DENABLE_AUTOTUNER )
++endif()
++
+ # Determine HOST_LINK_VERSION on Darwin.
+ set(HOST_LINK_VERSION)
+ if (APPLE AND NOT CMAKE_LINKER MATCHES ".*lld.*")
+ -- 
+ 
\ No newline at end of file
diff --git a/clang.spec b/clang.spec
index 205bdeb87d822a10e8cada916944e91d5c42ca83..7d6997702f171356e0536990f7d77e9c08d10dd2 100644
--- a/clang.spec
+++ b/clang.spec
@@ -43,7 +43,7 @@
 
 Name:		%{pkg_name}
 Version:	%{clang_version}
-Release:	20
+Release:	21
 Summary:	A C language family front-end for LLVM
 
 License:	NCSA
@@ -68,6 +68,7 @@ Patch13:        0013-Ignored-option-Wa-generate-missing-build-notes.patch
 Patch14:        0014-Update-llvm-lit-config-to-support-build_for_openeule.patch
 Patch15:        0015-Backport-Defer-the-instantiation-of-explicit-specifier-until-.patch
 Patch16:        0016-Add-BiSheng-Autotuner-support-for-LLVM-compiler.patch
+Patch17:        0017-fix-for-missing-DENABLE_AUTOTUNER.patch
 
 # Patches for clang-tools-extra
 # See https://reviews.llvm.org/D120301
@@ -412,6 +413,9 @@ LD_LIBRARY_PATH=%{buildroot}/%{install_libdir}  %{__ninja} check-all -C ./_build
 %{install_bindir}/git-clang-format
 
 %changelog
+* Tue Aug 20 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-21
+- Fix for missing -DENABLE_AUTOTUNER in compilation.
+
 * Tue Jul 30 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-20
 - Disable toolchain_clang build for BiSheng Autotuner support temporary.