About ccache in xcode of unity project

OS: Windows 10 22H2 19045.5487
unity: 6000.0.32f1
visual studio: Microsoft Visual Studio Community 2022 17.12.3

MAC:

x-code

I created a simple 2D project and managed to deploy the game to my i-phone successfully.
(mono project → build to xcode project files → build in xcode → run in xcode with my i-phone)

But the building time lasted over 10 minutes and I found a page

Optimizing iOS and macOS build times using ccache

I tried to run ccache in my mac and hope to accelerate the building.
I installed ccache in my MAC by brew

I made two script with +x mode

I created a testc folder to verify the script


and it did work.

Then I opened the xcode and added CC and CXX to the “Build Settings”

I triggered the building

But it didn’t work, the building used the default compiler.

I had repeated to ask AI about it and cleaned building cache many times, but the problem still exists.
Even without any probing executing of the ccache-clang script ( I configured the log file position, so if it has been executed once, there will be some logs)

Could someone help me check if there’s something wrong?