Re: FW: pthreads

[Paul Pluzhnikov]

"Michael D. Berger" <m.d.berger@ieee.org> writes:

> > > Further, static linking of executables on any UNIX is a bad idea(TM).
> > >
> > I would be interested in hearing why this is.

On some systems, e.g. AIX, the system call interface is *sepcified*
at the libc level. If you statically link on AIX x.y.z, your
executable may not work at all on AIX x.y.(z+1).

Other systems, e.g. Solaris allow for backward compatibility of
dynamically-linked executables: executables linked on Solaris 2.0
(and even on SunOS 4.x), continue to work just fine on Solairs 2.9.

No such promises are made for statically-linked executables.

Finally, on Linux statically-linked executables that use locales or
NIS/DNS may not work across even subminor revisions of glibc. The
newer versions of glibc warn about it:

$ gcc -static ghb.c

/tmp/cczwCINr.o(.text+0x31): In function `main':
: warning: Using 'gethostbyname' in statically linked applications
  requires at runtime the shared libraries from the glibc version
  used for linking

> Sorry, I meant this to go to the list.  Why is this list set so
> that reply goes to individuals?

This is not a list, it's a newsgroup, and it's set up just like
any other newsgroup. You probably pressed the 'Reply to poster'
instead of 'Reply to newsgroup'.

Cheers,
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