[question] Problem when boost depends on gtest_main / gmock_main

[playgithub]

Env

• Windows
• MSVC
• conan 1.40.1

CMakeLists.txt

...
find_package(Boost 1.70.0 REQUIRED COMPONENTS locale chrono)
...
target_link_libraries(${PROJECT_NAME}
                      PRIVATE
                          Boost::headers
                          Boost::locale
                          Boost::chrono)
...

Link error

x64-Release\libboost_test_exec_monitor.lib(test_main.obj) : error LNK2019: unresolved external symbol "int __cdecl test_main(int,char * * const)" (?test_main@@YAHHQEAPEAD@Z) referenced in function "public: static void __cdecl boost::detail::function::void_function_obj_invoker0<struct test_main_caller,void>::invoke(union boost::detail::function::function_buffer &)" (?invoke@?$void_function_obj_invoker0@Utest_main_caller@@X@function@detail@boost@@SAXAEATfunction_buffer@234@@Z)

Link error solved

find_package(Boost 1.70.0 REQUIRED COMPONENTS locale chrono)
find_package(GTest REQUIRED)
...
target_link_libraries(${PROJECT_NAME}
                      PRIVATE
                          Boost::headers
                          Boost::locale
                          Boost::chrono
                          GTest::gtest_main)

Problem

The application's entry fucntion becomes main for gtest_main, so the original GUI application (wxWidgets based) never executes. Output as below

Running main() from C:\J\w\BuildSingleReference@6\.conan\data\gtest\cci.20210126\_\_\build\5ad274d83035c78ba2b205e6cf4f1b317aee8e05\source_subfolder\googletest\src\gtest_main.cc
[==========] Running 0 tests from 0 test suites.
[==========] 0 tests from 0 test suites ran. (0 ms total)
[  PASSED  ] 0 tests. 

Questions

How to solve it?
Why does boost depend on gtest in this case?

More Info

similar to bincrafters/community#94

[playgithub]

It can't be reproduced with a minimal example.