On 3/14/24 6:03 AM, Pádraig Brady wrote: > It would disable this feature for cross-compilation yes, > but this isn't the first instance of AC_RUN_IFELSE we use.
Sorry if this is not the proper place to ask, but would it be possible to make Autoconf use an emulator when cross-compiling? This issue would be *less* of a problem in that case. I am more familiar with CMake where check_c_source_runs is used performs a similar task [1]. It is essentially a wrapper function around try_run [2]. CMake allows you to set CMAKE_CROSSCOMPILING_EMULATOR which will make try_run use an emulator to run programs instead [3]. I've used this with Wine and QEMU User a few times and it makes CMake's configure tests work fine (though much slower). If this functionality seems beneficial then I can look into adding it to Autoconf. [1] https://cmake.org/cmake/help/latest/module/CheckCSourceRuns.html [2] https://github.com/Kitware/CMake/blob/4285dec5f012260337193f29f18899d6cf2536a4/Modules/Internal/CheckSourceRuns.cmake#L93 [3] https://cmake.org/cmake/help/latest/variable/CMAKE_CROSSCOMPILING_EMULATOR.html Collin
