xuxin930 opened a new issue, #11452:
URL: https://github.com/apache/nuttx/issues/11452

   Here is an example:
   
   Our current Toolchain File overwrite the ARCHIVE command
   
https://github.com/apache/nuttx/blob/992719730f355ed3132c3204153f919822870074/arch/arm/src/cmake/Toolchain.cmake#L92-L94
   but `<CMAKE_AR>` makes different choices depending on whether `LTO` is 
enabled or not.
   
https://github.com/apache/nuttx/blob/992719730f355ed3132c3204153f919822870074/arch/arm/src/cmake/Toolchain.cmake#L75-L86
   If everything is configured in defconfig, everything will work normally.
   But if `LTO` is **not** enabled in defconfig and I call `cmake --build -t 
menuconfig` to open `LTO`, then the expectation is **different** from the 
setting.
   
   Because the execution of CMake is divided into three stages: 
**_configure_**, **_generate_** and **_build_**.
   the Toolchain command (such as CMAKE_AR above) is configured in stages  
**_configure_**, **_generate_**  and is solidified in the generated build file 
(such as Makefile).
   so in the end this menuconfig modification will NOT take effect.
   
   


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