Build Android 15 with Android T clang toolchain

[chandra sekhar seereddi]

Hi,

Is it possible to build AOSP with the older toolchains. I changed the necessary entries in global.go and got the older toolchain to prebuilts. Let me know where and all places I need to modify to the get the build done

[Pirama Arumuga Nainar]

Typically, modifying global.go should be enough to change the toolchain version.  In some cases, the bindgenClangVersion variable in rust/bindgen.go also needs to be updated.

That said, I don't think it's feasible to build Android 15 with an older toolchain.  There were two large scale changes - to use libc++ from the toolchain instead of external/libcxx.  The default C++ version also switched to C++20.  You may undo a large number of AOSP changes to make it build with an older toolchain.

On Sat, Mar 22, 2025 at 9:48 AM chandra sekhar seereddi <sekha...@gmail.com> wrote:

Hi,

Is it possible to build AOSP with the older toolchains. I changed the necessary entries in global.go and got the older toolchain to prebuilts. Let me know where and all places I need to modify to the get the build done

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