[native] Switch to use Clang for the Linux debug build in the CI

Using GCC12.1 results in consuming more disk space than available in the
github runners.

Tests show that Clang debug builds generate much smaller libraries for
the velox submodule - around 12GB+ vs 7.4G. And for presto itself it is
3GB vs 1.6GB.

Author: czentgr

.github/workflows/prestocpp-linux-build.yml

@@ -14,6 +14,8 @@ jobs:
       image: prestodb/presto-native-dependency:0.291-20250108164449-87d82ed
     env:
       CCACHE_DIR: "${{ github.workspace }}/ccache"
+      CC: /usr/bin/clang-15
+      CXX: /usr/bin/clang++-15
     steps:
       - uses: actions/checkout@v4
 
@@ -49,9 +51,12 @@ jobs:
       - name: Disk space consumption before build
         run: df
 
+      - name: Install Clang
+        run: |
+          presto-native-execution/velox/scripts/setup-centos9.sh install_clang15
+
       - name: Build engine
         run: |
-          source /opt/rh/gcc-toolset-12/enable
           cd presto-native-execution
           cmake \
             -B _build/debug \

presto-native-execution/presto_cpp/main/CMakeLists.txt

@@ -107,6 +107,12 @@ add_executable(presto_server PrestoMain.cpp)
 target_link_libraries(presto_server presto_server_lib velox_hive_connector
                       velox_tpch_connector)
 
+# Clang requires explicit linking with libatomic.
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang"
+   AND "${CMAKE_CXX_COMPILER_VERSION}" VERSION_GREATER_EQUAL 15)
+  target_link_libraries(presto_server atomic)
+endif()
+
 if(PRESTO_ENABLE_REMOTE_FUNCTIONS)
   add_library(presto_server_remote_function JsonSignatureParser.cpp
                                             RemoteFunctionRegisterer.cpp)

presto-native-execution/presto_cpp/main/tests/CMakeLists.txt

@@ -53,6 +53,12 @@ target_link_libraries(
   GTest::gtest
   GTest::gtest_main)
 
+# Clang requires explicit linking with libatomic.
+if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang"
+   AND "${CMAKE_CXX_COMPILER_VERSION}" VERSION_GREATER_EQUAL 15)
+  target_link_libraries(presto_server_test atomic)
+endif()
+
 set_property(TARGET presto_server_test PROPERTY JOB_POOL_LINK
                                                 presto_link_job_pool)