Re: DJGPP only dumps with USE_LISP_UNION_TYPE ??

[Jan D.]

> > I checked the assembler output from gcc and it seems OK, the .comm
> > directives for s1 to 4 are the same as for GNU/Linux.
>
> Of course!  __align__ works in DJGPP, I tested it when LSB tags were
> introduced.
>
> > So either the assembler or linker is doing something bad.
>
> They don't: DECL_ALIGN works on platforms other than XP.

I was thinking that maybe they did some runtime test that resulted in 
different behaviour between 98 and XP.

> > DJGPP also runs something called stubify after the linker, I don't
> > know what it does, but it could also be responsible.
>
> It isn't.  stubify simply prepends a small 2KB stub to the otherwise
> COFF executable, since DOS and Windows don't know how to run COFF
> images.  The stub is a DOS program that, when invoked, loads the COFF
> image into memory, switches the CPU into 32-bit protected mode, and
> then passes control to the entry point of the COFF image.

> The OS is also involved here, since the alignment of the program
> sections matters, and DPMI has its own ideas about that.

Sounds like a comlicated setup, all I wanted to do was to make sure my 
modifications compiled for all ports of Emacs :-)  Well, I'm glad that 
you seem to have an idea about where the problem is.

        Jan D.