* Install the libffi libtool archive. Whilst it is unused, it allows
us to automatically determine the shared library suffix.
* Switch the i386 SunOS bootstrap to .xz.
* Use PKG_CC to build lndir to help environments where the compiler is
not in $PATH.
* Apply patch from Alain O'Dea to fix issues with files residing on
read-only file systems.
* Support shared libraries on 64-bit SunOS.
* Fix typo in patches/patch-rts_Linker.c.
Fixes build on SunOS. Bump PKGREVISION.
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