How I build emacs-cvs on OpenBSD

How I build emacs-cvs on OpenBSD

[Han Boetes]

Hi,

I recently became Maintainer for the OpenBSD port for emacs. I also
like testing emacs from cvs as lot. I made a little script for this. I
will add some comments to it and I hope you can add the missing bits to
emacs to make things easier for other people.

Here it is:

opties='--with-gtk'
export LOCALBASE='/usr/local'
export CFLAGS='-pipe -O2 -g'
export CC=egcc
# only libpng is strictly necesarry. All OpenBSD ports are installed in
# /usr/local so lots of libraries can be found there.

export CPPFLAGS="-I${LOCALBASE}/include -I${LOCALBASE}/include/libpng"
# -Z is necessary because OpenBSD current on i386 has recently moved to
# elf.
# All OpenBSD platforms now use elf accept for vax and m68k

# A not so nice comment from one of the developers in the ports-cvs-tree
#
# Work around the fact that emacs undump knows too much about the layout
# of elf files (or thinks it does). These assumptions were just broken
# by binutils/ld changes to put GOT and PLT into their own PT_LOAD
# sections. Thus BSS is no longer part of the DATA PT_LOAD section. This
# is a workaround using the '-Z' compatibility flag which disables the
# GOT/PLT padding.

export LDFLAGS="-Z -L${LOCALBASE}/lib"

#if cvsup; then
    if [ "$1" = bootstrap ] ;then
        ./configure $opties && \
           make bootstrap && \
           sudo make install
    else
        ./configure $opties && \
           make && \
           cd lisp && \
           make recompile EMACS=../src/emacs && \
           cd .. && \
           sudo make install
    fi
#fi


And I also have this patch:

Index: openbsd.h
===================================================================
RCS file: /cvsroot/emacs/emacs/src/s/openbsd.h,v
retrieving revision 1.2
diff -u -r1.2 openbsd.h
--- openbsd.h   22 Mar 2000 12:08:40 -0000      1.2
+++ openbsd.h   7 Jul 2003 10:20:14 -0000
@@ -9,3 +9,7 @@
 /*  David Mazieres <dm@reeducation-labor.lcs.mit.edu> says this
     is necessary.  Otherwise Emacs dumps core when run -nw.  */
 #undef LIBS_TERMCAP
+
+/* Got this from the FreeBSD ports-list
+
+#define LIBS_TERMCAP -lncurses */

Now as you may notice, this patch does nothing at the moment. With the
emacs-21.3 port enabling the #define solves all problems with running
emacs -nw in a plain console, no problems in screen. but with current
cvs it breaks X and emacs -nw in screen  again so I accept the breakage
in the normal console. It's a rather erratic bug :)



# Han
-- 
homepage : http://www.xs4all.nl/~hanb
pgpkey   : http://www.xs4all.nl/~hanb/keys/Han_pubkey.gpg   )
email    : h a n @ m i j n c o m p u t e r . n l            (
irc      : irc.freenode.net#UnixNL                        c[ ]

Re: How I build emacs-cvs on OpenBSD

[Jason Rumney]

Han Boetes <han@mijncomputer.nl> writes:

> # A not so nice comment from one of the developers in the ports-cvs-tree
> #
> # Work around the fact that emacs undump knows too much about the layout
> # of elf files (or thinks it does). These assumptions were just broken
> # by binutils/ld changes to put GOT and PLT into their own PT_LOAD
> # sections. Thus BSS is no longer part of the DATA PT_LOAD section. This
> # is a workaround using the '-Z' compatibility flag which disables the
> # GOT/PLT padding.
> 
> export LDFLAGS="-Z -L${LOCALBASE}/lib"

Could this be the cause of the bug-reports of late saying that Emacs
crashes during bootstrapping when compiled with recent versions of
gcc on various platforms?  (I presume people might update binutils at
the same time as they update compiler).