[GitHub] [arrow] kou commented on issue #35850: [C++] RelWithDebInfo builds disable optimizations

["kou (via GitHub)" <gi...@apache.org>]

kou commented on issue #35850:
URL: https://github.com/apache/arrow/issues/35850#issuecomment-1570922238

   Oh, sorry.
   
   Does this work?
   
   ```diff
   diff --git a/cpp/cmake_modules/SetupCxxFlags.cmake b/cpp/cmake_modules/SetupCxxFlags.cmake
   index 827e0fa4e..2daaabb97 100644
   --- a/cpp/cmake_modules/SetupCxxFlags.cmake
   +++ b/cpp/cmake_modules/SetupCxxFlags.cmake
   @@ -642,8 +642,8 @@ if(NOT MSVC)
      string(APPEND CMAKE_CXX_FLAGS_RELEASE "${CXX_RELEASE_FLAGS}")
      string(APPEND CMAKE_C_FLAGS_DEBUG "${DEBUG_FLAGS}")
      string(APPEND CMAKE_CXX_FLAGS_DEBUG "${DEBUG_FLAGS}")
   -  string(APPEND CMAKE_C_FLAGS_RELWITHDEBINFO "${C_RELEASE_FLAGS} ${DEBUG_FLAGS}")
   -  string(APPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CXX_RELEASE_FLAGS} ${DEBUG_FLAGS}")
   +  string(APPEND CMAKE_C_FLAGS_RELWITHDEBINFO "${DEBUG_FLAGS} ${C_RELEASE_FLAGS}")
   +  string(APPEND CMAKE_CXX_FLAGS_RELWITHDEBINFO "${DEBUG_FLAGS} ${CXX_RELEASE_FLAGS}")
    endif()
    
    message(STATUS "Build Type: ${CMAKE_BUILD_TYPE}")
   ```


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