link problem in tcmalloc_minimal when using Debug-override configuration using Visual Studio on windows.

[muliu]

Downloaded the latest gperftools 2.12 from github, built it configured it with Debug-Override x86 on windows using VisualStudio 2022。

The Debug-Override configuration is newly created by me. It is copied from Release-Override, except for the following configuration items:

• c/c++ - Optimization - Optimization: Use “Disabled (/Od)” instead of “Maximum Optimization (Favor Speed) (/O2)”
• c/c++ - Preprocessor - Preprocessor Definitions: Use “_DEBUG” instead of “NDEBUG”
• c/c++ - Code Generation - Runtime Library: Use “Multi-threaded Debug (/MTd)” instead of “Multi-threaded (/MT)”

Link Debug-Override libtcmalloc_minimal.lib in statically with a Console APP for test purpose. Build the test app, the output is:

Build started...
1>------ Build started: Project: tcm_s, Configuration: Debug Win32 ------
1>G:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Microsoft\VC\v150\Platforms\Win32\PlatformToolsets\v141_xp\Toolset.targets(39,5): warning MSB8051: Support for targeting Windows XP is deprecated and will not be present in future releases of Visual Studio. Please see https://go.microsoft.com/fwlink/?linkid=2023588 for more information.
1>tcm_s.cpp
1>libucrtd.lib(debug_heap.obj) : error LNK2005: __calloc_dbg already defined in libtcmalloc_minimal.lib(override_functions.obj)
1>libucrtd.lib(debug_heap.obj) : error LNK2005: __free_dbg already defined in libtcmalloc_minimal.lib(override_functions.obj)
1>libucrtd.lib(debug_heap.obj) : error LNK2005: __malloc_dbg already defined in libtcmalloc_minimal.lib(override_functions.obj)
1>C:\Users\muliu\Desktop\hub\tcm_s\Debug\tcm_s.exe : fatal error LNK1169: one or more multiply defined symbols found
1>Done building project "tcm_s.vcxproj" -- FAILED.
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
========== Build started at 11:01 and took 03.951 seconds ==========

My guess is that the malloc, free and calloc of the Debug version have not been hooked, right?