Re: Issues with cross-compiling

[Guy Harris <gharris () sonic net>]

On Jan 16, 2022, at 6:01 PM, Glen Huang <heyhgl () gmail com> wrote:

> I’m trying to create an OpenWrt package for Wireshark.
>
> I think I’m pretty close. However, I got stuck at lemon, which if I’m not wrong, should be compiled by my build 
> machine’s compiler. From the source code, I found out it supports the LEMON_C_COMPILER variable, which I assigned 
> with the build machine’s compiler, but after compiling, CMAKE used the target platform’s linking flags for linking, 
> which apparently failed.

At least according to the "Mastering Cmake" boot, if your build process requires special tools built from project 
source in the native environment, that's a bit of a pain with CMake:

        
https://cmake.org/cmake/help/book/mastering-cmake/chapter/Cross%20Compiling%20With%20CMake.html#running-executables-built-in-the-project

I don't know whether newer version of CMake have a built-in concept of "this file must be built with a native compiler 
when doing a cross-build".
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