Re: Emacs CVS & DJGPP CVS: "make bootstrap" fails

Re: Emacs CVS & DJGPP CVS: "make bootstrap" fails

[Eli Zaretskii]

> Date: Thu, 16 Jan 2003 19:50:44 +0000
> From: Richard Dawe <rich@phekda.freeserve.co.uk>
> 
> xmenu.o: In function `_Fx_popup_menu':
> xmenu.c:738: undefined reference to `_DefaultRootWindow'
> xmenu.c(.text+0x1010): undefined reference to `_XQueryPointer'
> xmenu.c:761: undefined reference to `_FRAME_OUTER_TO_INNER_DIFF_X'
> xmenu.c:763: undefined reference to `_FRAME_OUTER_TO_INNER_DIFF_Y'
> collect2: ld returned 1 exit status
> make.exe[1]: *** [temacs] Error 1

The DJGPP port uses the non-toolkit part of xmenu.c (to emulate X
menus).  For this to work, any X-specific stuff in that part of xmenu
should be either (1) emulated by the code in msdos.c/msdos.h, or (2)
defined away in msdos.h, or (3) defined in msdos.h to some innocent
replacements (like "typedef int XFooBar" or some such).

I'm guessing that some recent changes violated this arrangement.

Re: Emacs CVS & DJGPP CVS: "make bootstrap" fails

[Jan D.]

> 
> > Date: Thu, 16 Jan 2003 19:50:44 +0000
> > From: Richard Dawe <rich@phekda.freeserve.co.uk>
> > 
> > xmenu.o: In function `_Fx_popup_menu':
> > xmenu.c:738: undefined reference to `_DefaultRootWindow'
> > xmenu.c(.text+0x1010): undefined reference to `_XQueryPointer'
> > xmenu.c:761: undefined reference to `_FRAME_OUTER_TO_INNER_DIFF_X'
> > xmenu.c:763: undefined reference to `_FRAME_OUTER_TO_INNER_DIFF_Y'
> > collect2: ld returned 1 exit status
> > make.exe[1]: *** [temacs] Error 1
> 
> The DJGPP port uses the non-toolkit part of xmenu.c (to emulate X
> menus).  For this to work, any X-specific stuff in that part of xmenu
> should be either (1) emulated by the code in msdos.c/msdos.h, or (2)
> defined away in msdos.h, or (3) defined in msdos.h to some innocent
> replacements (like "typedef int XFooBar" or some such).
> 
> I'm guessing that some recent changes violated this arrangement.

Yes, I did that.  I checked when HAVE_MENUS gets defined, but it
did not occur to me that a file in s/ (s/msdos.h) might define it.

I'm guessing DJGPP does not use configure?

	Jan D.

Re: Emacs CVS & DJGPP CVS: "make bootstrap" fails

[Eli Zaretskii]

> From: "Jan D." <jan.h.d@swipnet.se>
> Date: Sat, 18 Jan 2003 13:25:30 +0100 (MET)
> 
> Yes, I did that.  I checked when HAVE_MENUS gets defined, but it
> did not occur to me that a file in s/ (s/msdos.h) might define it.

Yes, the DJGPP port emulates X menus, see src/msdos.c.  (This
emulation could be the basis of similar support for text terminals on
Unix and GNU systems.)

> I'm guessing DJGPP does not use configure?

Right.  It instead uses config.bat batch file and a bunch of Sed
scripts in the `msdos' subdirectory.

When Emacs 19.2x was ported to DJGPP, there was no Bash port yet, so
running a configure script was not an option.  An additional
disadvantage of using configure, even now, is that one needs lots of
ported packages to be installed, in addition to Bash.  By contrast,
config.bat uses only a small number of widely available ported
programs (Sed, mv, and rm, IIRC), and thus one can build Emacs with
only a minimal set of non-standard tools, which is good for a
fundamental tool such as Emacs, as it avoids a chicken-and-egg problem
to some extent.