Re: Bootstrap failure on master with native compilation for Windows

[Eli Zaretskii <eliz@gnu.org>]

> From: Andy Moreton <andrewjmoreton@gmail.com>
> Date: Sat, 26 Oct 2024 20:00:45 +0100
> 
> Hi,
> 
> Building from latest master branch on Windows using the mingw64
> toolchain works if native compilation is disabled.
> 
> With native compilation enabled, there is an error in a bootstrap build
> from a clean tree when dumping:
> 
>     GEN      autoloads
> 
>   C:/emacs/git/emacs/master/src/lread.c:5485: Emacs fatal error: assertion failed: NILP (Vcomp_abi_hash)
> 
>   Backtrace:
>   0000000400281213
>   000000040010ab11
>   000000040018477c
>   00000004001fda5d
>   00000004002b112b
>   00000004002af8e1
>   0000000400308e86
>   00000004000012e1
>   00000004000013ee
>   000000067261736c
>   000000067441cc89
>   make[2]: *** [Makefile:203: autoloads] Error 3
>   make[2]: Leaving directory '/c/emacs/git/emacs/master/build/mingw64-x86_64-O2-native/lisp'
> 
> 
> Running a git bisect points to commit edf37e811caf ("Implement drawing
> text with DirectWrite on MS-Windows.").
> 
> Possibly something to do with defsubr calls in syms_of_w32dwrite, and the
> latter being called in the wrong initialisation order ?

Does it help to move the following part out of syms_of_w32dwrite to
the top level of that file?

  DEFVAR_BOOL ("w32-inhibit-dwrite", w32_inhibit_dwrite,
	       doc: /* If t, don't use DirectWrite.  */);