🚀 go-pugleaf

I'm attempting to install the emacs-18.55 distribution on a 
Sparc SLC (4/20) under SunOS 4.1, and have encountered 
persistent difficulties.  The procedure I've used is as follows:

        cd /usr/src
        tar -xv emacs-18.55
        chown root emacs-18.55
        cd emacs-18.55
        chown -R root [a-z]*
        chown -R root [A-Z]*
        chmod o+x build-install
        cd src
        cp config.h-dist config.h

I then edit config.h to include s-sunos4.h and m-sparc.h, then

        cd ..
        build-install

When the dust settles, incanting 'emacs' yields the following message:

        Fatal error (6).Abort (core dumped)

Using dbxtool, I determined that emacs quits after the following 
check in malloc.c fails:

        if (p->mh_alloc != ISFREE || p->mh_index != nunits)

In fact, p->mh_alloc ='\0'.  

In attempting to work around this, I tried the suggestions in the 
etc/PROBLEMS file, adding '#define static' to the s- and m- files, 
to no avail.  (The first suggestion, checking whether getpagesize 
is a system call, didn't apply, since it is on SunOS.)

I requested the assistance of Fen Labalme (listed in etc/SERVICE).  He
tried the installation on a SparcStation1 running SunOS 4.1, and had
no such problem (the procedure he used may have differed subtly from\
the one I used, but it is hard to imagine such subtleties can make 
such a radical difference.)  Fen suggested that I send this message.
Although I understand that emacs is unsupported, until I can get past this
hangup, the product is completely useless to me; having used emacs for
the last decade and a half, this amounts to a real hardship.

Thanks for your attention.

Richard Steiger
Ensemble Software Systems