Build error failure:

C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
comp.o: in function `define_cast_from_to':
D:/a/emacs-build/emacs-build/git/master/src/comp.c:3159: undefined
reference to `gcc_jit_context_new_cast'
...

This is due to `gcc_jit_context_new_cast' is not loaded from dll.
The proposed fix is attached.

Best regards,
Kien