Does GNU emacs ever use shared libraries?

[Israel Pinkas ~]

In article <152 at talarian.UUCP> scott at talarian.UUCP (Scott Weitzenkamp) writes:

>   I noticed that on SunOS 4.0, GNU emacs uses the -Bstatic flag to cc
> to prevent the use of shared libraries.  Does GNU emacs ever use 
> shared libraries?  If not, why not?  Does System V have an option
> like -Bstatic to prevent the use of shared libraries?

This is because unexec() does not know how to dump executables that were
dynamically linked.  James Turner (of Daisy) and I spent a lot of time
bashing on this one, since we had early releases of SunOS 4.0 on Sun
386i's.  (We were both field test sites.)

The problem that I had was that there was no predictable way to determine
whether the memory image had been dynamically linked.  (Nothing documented,
that is.)  Eventually, I gave up on this, since it really didn't matter to
me all that much.

I don't know much about SysV, but I suspect that there should be a way.  If
nothing else works, you can always list the library name on the command
line instead of -l<lib>.  Remember to add /usr/lib/libc.a, or whatever it
is on your machine, at the end of the command line if your machine has a
dynamic version of libc.

-Israel Pinkas
--
--------------------------------------
Disclaimer: The above are my personal opinions, and in no way represent
the opinions of Intel Corporation.  In no way should the above be taken
to be a statement of Intel.

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