I am not a programmer by trade. I did previously manage to build the latest version of emacs on Windows as explained at https://readingworldmagazine.com/emacs/2022-02-24-compiling-emacs-29-from-source-on-windows/ , but after several hours trying to compile a version of emacs rolled back to just before that commit, I haven’t had luck. I git-cloned emacs master to my machine, used `git checkout 8783700b23e70874c4996908bf02c010ae6f3fe1^` to narrow down to the parent of the commit in question, ran `./autogen.sh` and then `./configure`, and finally tried `make`, but it keeps raising errors. ChatGPT diagnoses the errors like this:

Warnings:
    calloc Argument Order: Multiple warnings about the incorrect order of arguments in calloc calls. The first argument should specify the number of elements, and the second argument should specify the size of each element. For example:
           c
           newstate = (re_dfastate_t *) calloc(1, sizeof(re_dfastate_t));
    These warnings alone should not cause the build to fail but should be corrected for code correctness and stability.
Errors in sysdep.c:
    Implicit Declaration of waitpid:
             sysdep.c:472:13: error: implicit declaration of function 'waitpid' [-Wimplicit-function-declaration]
            472 | pid = waitpid(child, status, options);
This error indicates that waitpid is being used without including the proper header file that declares it.
Undeclared Identifier WNOHANG:
           sysdep.c:518:43: error: 'WNOHANG' undeclared (first use in this function)
           518 | return get_child_status(child, status, WNOHANG | options, 0);
This suggests that WNOHANG is not defined, likely because the appropriate headers are not included.
Control Reaches End of Non-Void Function:
           sysdep.c:519:1: warning: control reaches end of non-void function [-Wreturn-type]
    519 | }
    This means the function is expected to return a value but doesn't in all code paths.
Error in print.c:
    Storing the Address of Local Variable:
        process.c:7419:53: error: storing the address of local variable 'buf' in 'current_thread->stack_top' [-Wdangling-pointer=]
This indicates a potential issue with a dangling pointer, where the address of a local variable is being assigned to a global or long-lived structure.

If you have any advice I’m happy to try compiling it again. Or perhaps Ihor or Stefan would have more luck rolling back emacs to just before that commit to confirm that’s the issue? Sorry!