bug#41242: Port feature/native-comp to Windows - Reduce the number of files probed when finding a lisp file.

[Nicolas Bértolo]

> Yes, but even if you use lazy linking this code would not link if the
> linker cannot verify the presence of these functions.  In this case all
> users with a non 10 libgccjit.

Shouldn't the first #ifdef remove the code for those users? That one checks for
LIBGCCJIT_HAVE_gcc_jit_version.

Nico.