Re: Emacs on GNUstep

[YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>]

>>>>> On Sun, 03 May 2009 15:38:49 -0400, Stefan Monnier <monnier@iro.umontreal.ca> said:

>> I just tried copying ObjC-related information in the .data section
>> not from the dumping process but from the original temacs file so
>> as to avoid some confusion during the startup time of the dumped
>> executable.  It seems to work for me at least on GNU/Linux (Ubuntu
>> 9.04).

> Great news, thank you.  I'll try it out as soon as possible.  If you
> wrap it in appropriate #ifdef, you can install it on the trunk (and
> please add a comment indicating that the ifdef shouldn't be
> necessary anyway).  Of course, remove the CANNOT_DUMP setting for
> GNUStep at the same.

We can't simply remove CANNOT_DUMP because dumping requires unexelf.c
currently.  The macro __ELF__ cannot be used here because it doesn't
necessarily imply the use of unexelf.c (e.g., Solaris 10).

How about the patch below?  I also removed UNEXEC_SRC because it is no
longer used anywhere.

				     YAMAMOTO Mitsuharu
				mituharu@math.s.chiba-u.ac.jp

Index: configure.in
===================================================================
RCS file: /sources/emacs/emacs/configure.in,v
retrieving revision 1.594
diff -c -p -r1.594 configure.in
*** configure.in	1 May 2009 15:32:01 -0000	1.594
--- configure.in	4 May 2009 07:59:51 -0000
*************** AC_DEFINE_UNQUOTED(C_SWITCH_X_SITE,  ${C
*** 2536,2543 ****
   HAVE_X_WINDOWS above and your X include files aren't in a place
   that your compiler can find on its own, you might want to add
   "-I/..." or something similar.])
! AC_DEFINE_UNQUOTED(UNEXEC_SRC,       ${UNEXEC_SRC},
! 		   [Define to the unexec source file name.])
  
  if test "${HAVE_X_WINDOWS}" = "yes" ; then
    AC_DEFINE(HAVE_X_WINDOWS, 1,
--- 2536,2546 ----
   HAVE_X_WINDOWS above and your X include files aren't in a place
   that your compiler can find on its own, you might want to add
   "-I/..." or something similar.])
! case "${unexec}" in
!   unexelf.o)
!     AC_DEFINE(UNEXEC_SUPPORT_OBJC, 1, [Define to 1 if unexec supports ObjC.])
!   ;;
! esac
  
  if test "${HAVE_X_WINDOWS}" = "yes" ; then
    AC_DEFINE(HAVE_X_WINDOWS, 1,
*************** AH_BOTTOM([
*** 2607,2614 ****
  #define HAVE_MOUSE
  #endif
  
! /* Sadly for now, GNUstep dump does not work.  */
! #ifdef NS_IMPL_GNUSTEP
  #define CANNOT_DUMP
  #endif
  
--- 2610,2617 ----
  #define HAVE_MOUSE
  #endif
  
! /* Sadly for now, GNUstep dump does not work with all unexecs.  */
! #if defined (NS_IMPL_GNUSTEP) && !defined (UNEXEC_SUPPORT_OBJC)
  #define CANNOT_DUMP
  #endif