[Mimedefang] 2.23 configure and rm_r.c problems on Solaris

[Alberto.daSilva at rmb.co.za]

> > Sun's compiler doesn't have a -pthread option.  The configure test for
> > the pthread option ends up succeeding, because the various letters of
> > "pthread" are acccepted as options.  This eventually causes the make
> > to error with:
>
> For information, gcc will compile mimedefang fine on Solaris. The
> configure process logs
>
>  checking whether gcc accepts -pthread... no
>  checking for pthread_once in -lpthread... yes
>
> gcc gets the '-D_POSIX_PTHREAD_SEMANTICS' argument, and the make happily
> succeeds. (mimedefang 2.23, gcc 2.8.1, SunOS 5.8)
>
> Scott Larnach

I've use gcc 3.2 (from Sunfreeware) on Solaris 8 SPARC to
successfully build mimedefang 2.21, 2.22 & 2.24-BETA-1

Also using the Sun supplied perl 5.005_05.

Alberto da Silva