libtool, -fstack-protector, -nostdlib, and while we're at it -Bdirect on SunOS

[Richard PALO <richard.palo%free.fr@localhost>]

In order to get over suppression of -fstack-protector namely in SunOS 
builds for perl and cups, I've been testing for a real long time now
a patch found on libtool-patches@ in the following thread:
> Re: Bug: linking shared libraries on Cygwin results in undefined references to 
> __stack_chck_guard for code compiled with -fstack-protector

This patch prevents libtools link phase from suppressing 
'-fstack-protector*' switches such that gcc can issue the proper link 
statement.

Well, that was fine for gcc, but when building with g++ libtool adds for 
some reason '-nostdlib' which foils the above patch, so that needed 
attending to.  It is useful to know that this patch fixes similar 
problems with, for example, '-pthread' and others!

Then, Mr Orth found a problem on SunOS x86_64 with -Bdirect as mentioned 
here: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452 and
 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788

So I have some patches found here: 
http://www.netbsd.org/~richard/libtool-SunOS/ that I've been using 
without issue on both i386 and x86_64.

Summary:

0001-add-fstack-protector-link-support-to-libtool.patch
  permits libtool to generate -fstack-protector* on all platforms.

0002-x86-64-sunos-fix-for-g-and-Wl-Bdirect-involving-libt.patch
  affects only SunOS x86_64 libtool, gcc47 & gcc48

0003-remove-nostdlib-from-libtool-shared-libraries-for-fs.patch
  suppresses -nostdlib with g++ on SunOS only  (see note # below)

0004-use-libtool-fstack-protector-support-in-cups.patch
  re-enable in perl

0005-put-back-stack-protector-on-solaris-in-perl.patch
  re-enable in perl

Note # other platforms that wish to test suppression of '-nostdlib' will 
need to apply a similar patch for their target.  Apparently
the darwin platform may have (or have had) issues...

I encourage direct participation in the libtool@ discussion
'g++ and -nostdlib'

NB libtool-base is *not* revbump'd in the any of the above patches, 
although gcc*, cups, and perl are.