FYI: fix func_show_eval, do not use $status

[Ralf Wildenhues]

* Ralf Wildenhues wrote on Fri, Dec 02, 2005 at 04:36:55PM CET:
> 
> Any reason against applying these two patches to HEAD and branch-1-5
> respectively?

I didn't think so.  ;)

Applied.

Cheers,
Ralf

> HEAD:
>       * libltdl/config/general.m4sh (func_show_eval):
>         Rewrite use the failure expression, because the exit status of
>         the previous command may not be preserved in the next `eval' by
>         some shells, such as pdksh.
>       * libltdl/config/ltmain.m4sh (func_extract_an_archive):
>       Use func_show_eval correctly.
>       (func_mode_link): Likewise.  Also, do not use `$status'.
>         * tests/fail.at: New set of tests to ensure libtool fails.
>         * Makefile.am, tests/testsuite.at: Adjusted.

> branch-1-5:
> 
>       * ltmain.in (func_extract_archives, compile mode, link mode):
>       Use `$exit_status' rather than forbidden `$status'.