"sco5.h" `%{!z*:-z text}'

[Alexandre Oliva]

On Aug 27, 2001, "Golubev I. N." <gin@mo.msk.ru> wrote:

> `%{!z*:-z text}' construct in LINK_SPEC forces gcc always to specify
> `-z text' while linking shared libraries.  With some input files (even
> from native libs) it will cause linker to fail.

> In fact sco5 can link any (non PIC, not adapted to shlibs in any way)
> objects to shlibs, and those shlibs will work normally.  Sometimes
> using such an objects is what is desired, since non PIC version of
> object is the only available one.

> Why forcing such an option was included at all?

Shared libraries are more efficient when they're built out of PIC.
Presumably, there's some -z option that tells the linker to not
require PIC, and GCC won't pass -z text to the linker if you use any
other -z option.

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
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