Re: `print' does not print

[Ralf Fassel]

* David Kaelbling
| > Great, so it seems that the SGI-specific patch in unexelf.c is
| > unnecessary and even dangerous, and should be taken out.
| 
| It wouldn't surprise me, but is that really what Ralf said?

I wasn't quite sure about that statement either.  I could not
reproduce the problems the `.got' statements were meant to solve, but
I'm not sure that this means that they might go away.  They might help
in a different environment (which I obviously not have, since emacs
works at my site w/o those statements).

What I have found is that you need an upgraded IRIX version (at least
6.5.10 it seems) to make these `.got' statements work with gcc
compilation.

I also found that cc compilation seems to works in any case (21.1 and
21.2, contrary to the comments in 21.2 unexelf.c that require the
`.got' sections).

| I'm probably confused,

AOL :-)

Summary:
========
`prints' means:
       emacs -batch -no-site-file -eval '(print emacs-version)'
    prints the version number on both IRIX version.

`does not print' means:
    the above command line does not print the version number on no
    IRIX version.
    The problem seems to be that stdio output is broken, since none of
    the stdio functions produce any output.  The plain I/O system
    calls like write(2) do work, however.

There wasn't the situation that it printed on one OS and not on the
other.  Either it printed on both or on none.

compiled =~ gmake temacs, i.e. compile all objects and link temacs,
            then stop
dumped   =~ gmake emacs, i.e. temacs has been built previously, now
            produce the emacs executable

gcc version 2.95.3 20010315 (release)
cc MIPSpro Compilers: Version 7.30
OS IRIX 6.5.9f and 6.5.15m

Custom libraries:
- static libz    1.1.4
- static libtiff v3.4beta037
- static libpng  1.0.8


Configurations tested:
======================
Emacs version | compiled with | compiled on | dumped on | prints
----------------------------------------------------------------
    21.2          gcc -g          6.5.9f        6.5.9f      no
    21.2          gcc -g          6.5.15m       6.5.9f      no

    21.2          gcc -g          6.5.9f        6.5.15m     yes
    21.2          gcc -g          6.5.15m       6.5.15m     yes

    21.2          cc  -g           *               *        yes
----------------------------------------------------------------
    21.1          *   -g           *               *        yes
----------------------------------------------------------------

I had no core dumps during compilation/dumping in any configuration.

R'